/* * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All Rights Reserved. */ /* * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License * Version 2 or later at the following locations: * * http://www.opensource.org/licenses/gpl-license.html * http://www.gnu.org/copyleft/gpl.html */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "crm_regs.h" #include "cpu_op-mx51.h" #include "cpu_op-mx53.h" /* External clock values passed-in by the board code */ static unsigned long external_high_reference, external_low_reference; static unsigned long oscillator_reference, ckih2_reference; static struct clk pll1_main_clk; static struct clk pll1_sw_clk; static struct clk pll2_sw_clk; static struct clk pll3_sw_clk; static struct clk pll4_sw_clk; static struct clk lp_apm_clk; static struct clk tve_clk; static struct clk emi_fast_clk; static struct clk emi_slow_clk; static struct clk emi_intr_clk[]; static struct clk ddr_clk; static struct clk ipu_clk[]; static struct clk ldb_di_clk[]; static struct clk axi_a_clk; static struct clk axi_b_clk; static struct clk ddr_hf_clk; static struct clk mipi_hsp_clk; static struct clk gpu3d_clk; static struct clk gpu2d_clk; static struct clk vpu_clk[]; static int cpu_curr_op; static struct cpu_op *cpu_op_tbl; static void __iomem *pll1_base; static void __iomem *pll2_base; static void __iomem *pll3_base; static void __iomem *pll4_base; static int cpu_op_nr; extern int lp_high_freq; extern int lp_med_freq; static int max_axi_a_clk; static int max_axi_b_clk; static int max_ahb_clk; static int max_emi_slow_clk; extern int dvfs_core_is_active; #define SPIN_DELAY 1000000 /* in nanoseconds */ #define MAX_AXI_A_CLK_MX51 166250000 #define MAX_AXI_A_CLK_MX53 400000000 #define MAX_AXI_B_CLK_MX51 133000000 #define MAX_AXI_B_CLK_MX53 200000000 #define MAX_AHB_CLK_MX51 133000000 #define MAX_EMI_SLOW_CLK_MX51 133000000 #define MAX_AHB_CLK_MX53 133333333 #define MAX_EMI_SLOW_CLK_MX53 133333333 #define MAX_DDR_HF_RATE 200000000 /* To keep compatible with some NAND flash, limit * max NAND clk to 34MHZ. The user can modify it for * dedicate NAND flash */ #define MAX_NFC_CLK 34000000 #define UART1_DMA_ENABLE 0 #define UART2_DMA_ENABLE 0 #define UART3_DMA_ENABLE 0 #define UART4_DMA_ENABLE 0 #define UART5_DMA_ENABLE 0 #ifdef CONFIG_CLK_DEBUG #define __INIT_CLK_DEBUG(n) .name = #n, #else #define __INIT_CLK_DEBUG(n) #endif extern int mxc_jtag_enabled; extern int uart_at_24; extern int cpufreq_trig_needed; extern int low_bus_freq_mode; static int cpu_clk_set_op(int op); extern struct cpu_op *(*get_cpu_op)(int *op); extern void (*set_num_cpu_op)(int num); static struct clk esdhc3_clk[]; static void __calc_pre_post_dividers(u32 div, u32 *pre, u32 *post) { u32 min_pre, temp_pre, old_err, err; if (div >= 512) { *pre = 8; *post = 64; } else if (div >= 8) { min_pre = (div - 1) / 64 + 1; old_err = 8; for (temp_pre = 8; temp_pre >= min_pre; temp_pre--) { err = div % temp_pre; if (err == 0) { *pre = temp_pre; break; } err = temp_pre - err; if (err < old_err) { old_err = err; *pre = temp_pre; } } *post = (div + *pre - 1) / *pre; } else if (div < 8) { *pre = div; *post = 1; } } static int _clk_enable(struct clk *clk) { u32 reg; reg = __raw_readl(clk->enable_reg); reg |= MXC_CCM_CCGRx_CG_MASK << clk->enable_shift; __raw_writel(reg, clk->enable_reg); if (clk->flags & AHB_HIGH_SET_POINT) lp_high_freq++; else if (clk->flags & AHB_MED_SET_POINT) lp_med_freq++; return 0; } static int _clk_enable_inrun(struct clk *clk) { u32 reg; reg = __raw_readl(clk->enable_reg); reg &= ~(MXC_CCM_CCGRx_CG_MASK << clk->enable_shift); reg |= 1 << clk->enable_shift; __raw_writel(reg, clk->enable_reg); return 0; } static void _clk_disable(struct clk *clk) { u32 reg; reg = __raw_readl(clk->enable_reg); reg &= ~(MXC_CCM_CCGRx_CG_MASK << clk->enable_shift); __raw_writel(reg, clk->enable_reg); if (clk->flags & AHB_HIGH_SET_POINT) lp_high_freq--; else if (clk->flags & AHB_MED_SET_POINT) lp_med_freq--; } static void _clk_disable_inwait(struct clk *clk) { u32 reg; reg = __raw_readl(clk->enable_reg); reg &= ~(MXC_CCM_CCGRx_CG_MASK << clk->enable_shift); reg |= 1 << clk->enable_shift; __raw_writel(reg, clk->enable_reg); } /* * For the 4-to-1 muxed input clock */ static inline u32 _get_mux(struct clk *parent, struct clk *m0, struct clk *m1, struct clk *m2, struct clk *m3) { if (parent == m0) return 0; else if (parent == m1) return 1; else if (parent == m2) return 2; else if (parent == m3) return 3; else BUG(); return 0; } /* * For the ddr muxed input clock */ static inline u32 _get_mux_ddr(struct clk *parent, struct clk *m0, struct clk *m1, struct clk *m2, struct clk *m3, struct clk *m4) { if (parent == m0) return 0; else if (parent == m1) return 1; else if (parent == m2) return 2; else if (parent == m3) return 3; else if (parent == m4) return 4; else BUG(); return 0; } static inline void __iomem *_get_pll_base(struct clk *pll) { if (pll == &pll1_main_clk) return pll1_base; else if (pll == &pll2_sw_clk) return pll2_base; else if (pll == &pll3_sw_clk) return pll3_base; else if (pll == &pll4_sw_clk) return pll4_base; else BUG(); return NULL; } static unsigned long get_high_reference_clock_rate(struct clk *clk) { return external_high_reference; } static unsigned long get_low_reference_clock_rate(struct clk *clk) { return external_low_reference; } static unsigned long get_oscillator_reference_clock_rate(struct clk *clk) { return oscillator_reference; } static unsigned long get_ckih2_reference_clock_rate(struct clk *clk) { return ckih2_reference; } /* External high frequency clock */ static struct clk ckih_clk = { __INIT_CLK_DEBUG(ckih_clk) .get_rate = get_high_reference_clock_rate, }; static struct clk ckih2_clk = { __INIT_CLK_DEBUG(ckih2_clk) .get_rate = get_ckih2_reference_clock_rate, }; static struct clk osc_clk = { __INIT_CLK_DEBUG(osc_clk) .get_rate = get_oscillator_reference_clock_rate, }; /* External low frequency (32kHz) clock */ static struct clk ckil_clk = { __INIT_CLK_DEBUG(ckil_clk) .get_rate = get_low_reference_clock_rate, }; static unsigned long _fpm_get_rate(struct clk *clk) { u32 rate = ckil_clk.get_rate(&ckil_clk) * 512; if ((__raw_readl(MXC_CCM_CCR) & MXC_CCM_CCR_FPM_MULT_MASK) != 0) rate *= 2; return rate; } static int _fpm_enable(struct clk *clk) { u32 reg = __raw_readl(MXC_CCM_CCR); reg |= MXC_CCM_CCR_FPM_EN; __raw_writel(reg, MXC_CCM_CCR); return 0; } static void _fpm_disable(struct clk *clk) { u32 reg = __raw_readl(MXC_CCM_CCR); reg &= ~MXC_CCM_CCR_FPM_EN; __raw_writel(reg, MXC_CCM_CCR); } static struct clk fpm_clk = { __INIT_CLK_DEBUG(fpm_clk) .parent = &ckil_clk, .get_rate = _fpm_get_rate, .enable = _fpm_enable, .disable = _fpm_disable, }; static unsigned long _fpm_div2_get_rate(struct clk *clk) { return clk_get_rate(clk->parent) / 2; } static struct clk fpm_div2_clk = { __INIT_CLK_DEBUG(fpm_div2_clk) .parent = &fpm_clk, .get_rate = _fpm_div2_get_rate, }; static unsigned long _clk_pll_get_rate(struct clk *clk) { long mfi, mfn, mfd, pdf, ref_clk, mfn_abs; unsigned long dp_op, dp_mfd, dp_mfn, dp_ctl, pll_hfsm, dbl; void __iomem *pllbase; s64 temp; pllbase = _get_pll_base(clk); dp_ctl = __raw_readl(pllbase + MXC_PLL_DP_CTL); pll_hfsm = dp_ctl & MXC_PLL_DP_CTL_HFSM; dbl = dp_ctl & MXC_PLL_DP_CTL_DPDCK0_2_EN; if (pll_hfsm == 0) { dp_op = __raw_readl(pllbase + MXC_PLL_DP_OP); dp_mfd = __raw_readl(pllbase + MXC_PLL_DP_MFD); dp_mfn = __raw_readl(pllbase + MXC_PLL_DP_MFN); } else { dp_op = __raw_readl(pllbase + MXC_PLL_DP_HFS_OP); dp_mfd = __raw_readl(pllbase + MXC_PLL_DP_HFS_MFD); dp_mfn = __raw_readl(pllbase + MXC_PLL_DP_HFS_MFN); } pdf = dp_op & MXC_PLL_DP_OP_PDF_MASK; mfi = (dp_op & MXC_PLL_DP_OP_MFI_MASK) >> MXC_PLL_DP_OP_MFI_OFFSET; mfi = (mfi <= 5) ? 5 : mfi; mfd = dp_mfd & MXC_PLL_DP_MFD_MASK; mfn = mfn_abs = dp_mfn & MXC_PLL_DP_MFN_MASK; /* Sign extend to 32-bits */ if (mfn >= 0x04000000) { mfn |= 0xFC000000; mfn_abs = -mfn; } ref_clk = 2 * clk_get_rate(clk->parent); if (dbl != 0) ref_clk *= 2; ref_clk /= (pdf + 1); temp = (u64) ref_clk * mfn_abs; do_div(temp, mfd + 1); if (mfn < 0) temp = -temp; temp = (ref_clk * mfi) + temp; return temp; } static int _clk_pll_set_rate(struct clk *clk, unsigned long rate) { u32 reg, reg1; void __iomem *pllbase; struct timespec nstimeofday; struct timespec curtime; long mfi, pdf, mfn, mfd = 999999; s64 temp64; unsigned long quad_parent_rate; unsigned long pll_hfsm, dp_ctl; pllbase = _get_pll_base(clk); quad_parent_rate = 4 * clk_get_rate(clk->parent); pdf = mfi = -1; while (++pdf < 16 && mfi < 5) mfi = rate * (pdf+1) / quad_parent_rate; if (mfi > 15) return -1; pdf--; temp64 = rate*(pdf+1) - quad_parent_rate*mfi; do_div(temp64, quad_parent_rate/1000000); mfn = (long)temp64; dp_ctl = __raw_readl(pllbase + MXC_PLL_DP_CTL); /* use dpdck0_2 */ __raw_writel(dp_ctl | 0x1000L, pllbase + MXC_PLL_DP_CTL); pll_hfsm = dp_ctl & MXC_PLL_DP_CTL_HFSM; if (pll_hfsm == 0) { reg = mfi<<4 | pdf; __raw_writel(reg, pllbase + MXC_PLL_DP_OP); __raw_writel(mfd, pllbase + MXC_PLL_DP_MFD); __raw_writel(mfn, pllbase + MXC_PLL_DP_MFN); } else { reg = mfi<<4 | pdf; __raw_writel(reg, pllbase + MXC_PLL_DP_HFS_OP); __raw_writel(mfd, pllbase + MXC_PLL_DP_HFS_MFD); __raw_writel(mfn, pllbase + MXC_PLL_DP_HFS_MFN); } /* If auto restart is disabled, restart the PLL and * wait for it to lock. */ reg = __raw_readl(pllbase + MXC_PLL_DP_CTL); if (reg & MXC_PLL_DP_CTL_UPEN) { reg = __raw_readl(pllbase + MXC_PLL_DP_CONFIG); if (!(reg & MXC_PLL_DP_CONFIG_AREN)) { reg1 = __raw_readl(pllbase + MXC_PLL_DP_CTL); reg1 |= MXC_PLL_DP_CTL_RST; __raw_writel(reg1, pllbase + MXC_PLL_DP_CTL); } /* Wait for lock */ getnstimeofday(&nstimeofday); while (!(__raw_readl(pllbase + MXC_PLL_DP_CTL) & MXC_PLL_DP_CTL_LRF)) { getnstimeofday(&curtime); if (curtime.tv_nsec - nstimeofday.tv_nsec > SPIN_DELAY) panic("pll_set_rate: pll relock failed\n"); } } return 0; } static int _clk_pll_enable(struct clk *clk) { u32 reg; void __iomem *pllbase; struct timespec nstimeofday; struct timespec curtime; pllbase = _get_pll_base(clk); reg = __raw_readl(pllbase + MXC_PLL_DP_CTL); if (reg & MXC_PLL_DP_CTL_UPEN) return 0; reg |= MXC_PLL_DP_CTL_UPEN; __raw_writel(reg, pllbase + MXC_PLL_DP_CTL); /* Wait for lock */ getnstimeofday(&nstimeofday); while (!(__raw_readl(pllbase + MXC_PLL_DP_CTL) & MXC_PLL_DP_CTL_LRF)) { getnstimeofday(&curtime); if (curtime.tv_nsec - nstimeofday.tv_nsec > SPIN_DELAY) panic("pll relock failed\n"); } return 0; } static void _clk_pll_disable(struct clk *clk) { u32 reg; void __iomem *pllbase; pllbase = _get_pll_base(clk); reg = __raw_readl(pllbase + MXC_PLL_DP_CTL) & ~MXC_PLL_DP_CTL_UPEN; __raw_writel(reg, pllbase + MXC_PLL_DP_CTL); } static struct clk pll1_main_clk = { __INIT_CLK_DEBUG(pll1_main_clk) .parent = &osc_clk, .get_rate = _clk_pll_get_rate, .enable = _clk_pll_enable, .disable = _clk_pll_disable, }; static int _clk_pll1_sw_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; reg = __raw_readl(MXC_CCM_CCSR); if (parent == &pll1_main_clk) { reg &= ~MXC_CCM_CCSR_PLL1_SW_CLK_SEL; __raw_writel(reg, MXC_CCM_CCSR); /* Set the step_clk parent to be lp_apm, to save power. */ mux = _get_mux(&lp_apm_clk, &lp_apm_clk, NULL, &pll2_sw_clk, &pll3_sw_clk); reg = __raw_readl(MXC_CCM_CCSR); reg = (reg & ~MXC_CCM_CCSR_STEP_SEL_MASK) | (mux << MXC_CCM_CCSR_STEP_SEL_OFFSET); } else { if (parent == &lp_apm_clk) { reg |= MXC_CCM_CCSR_PLL1_SW_CLK_SEL; reg = __raw_readl(MXC_CCM_CCSR); mux = _get_mux(parent, &lp_apm_clk, NULL, &pll2_sw_clk, &pll3_sw_clk); reg = (reg & ~MXC_CCM_CCSR_STEP_SEL_MASK) | (mux << MXC_CCM_CCSR_STEP_SEL_OFFSET); } else { mux = _get_mux(parent, &lp_apm_clk, NULL, &pll2_sw_clk, &pll3_sw_clk); reg = (reg & ~MXC_CCM_CCSR_STEP_SEL_MASK) | (mux << MXC_CCM_CCSR_STEP_SEL_OFFSET); __raw_writel(reg, MXC_CCM_CCSR); reg = __raw_readl(MXC_CCM_CCSR); reg |= MXC_CCM_CCSR_PLL1_SW_CLK_SEL; } } __raw_writel(reg, MXC_CCM_CCSR); return 0; } static unsigned long _clk_pll1_sw_get_rate(struct clk *clk) { u32 reg, div; div = 1; reg = __raw_readl(MXC_CCM_CCSR); if (clk->parent == &pll2_sw_clk) { div = ((reg & MXC_CCM_CCSR_PLL2_PODF_MASK) >> MXC_CCM_CCSR_PLL2_PODF_OFFSET) + 1; } else if (clk->parent == &pll3_sw_clk) { div = ((reg & MXC_CCM_CCSR_PLL3_PODF_MASK) >> MXC_CCM_CCSR_PLL3_PODF_OFFSET) + 1; } return clk_get_rate(clk->parent) / div; } /* pll1 switch clock */ static struct clk pll1_sw_clk = { __INIT_CLK_DEBUG(pll1_sw_clk) .parent = &pll1_main_clk, .set_parent = _clk_pll1_sw_set_parent, .get_rate = _clk_pll1_sw_get_rate, }; static int _clk_pll2_sw_set_parent(struct clk *clk, struct clk *parent) { u32 reg; reg = __raw_readl(MXC_CCM_CCSR); if (parent == &pll2_sw_clk) { reg &= ~MXC_CCM_CCSR_PLL2_SW_CLK_SEL; } else { reg = (reg & ~MXC_CCM_CCSR_PLL2_SW_CLK_SEL); reg |= MXC_CCM_CCSR_PLL2_SW_CLK_SEL; } __raw_writel(reg, MXC_CCM_CCSR); return 0; } /* same as pll2_main_clk. These two clocks should always be the same */ static struct clk pll2_sw_clk = { __INIT_CLK_DEBUG(pll2_sw_clk) .parent = &osc_clk, .get_rate = _clk_pll_get_rate, .enable = _clk_pll_enable, .disable = _clk_pll_disable, .set_rate = _clk_pll_set_rate, .set_parent = _clk_pll2_sw_set_parent, }; /* same as pll3_main_clk. These two clocks should always be the same */ static struct clk pll3_sw_clk = { __INIT_CLK_DEBUG(pll3_sw_clk) .parent = &osc_clk, .set_rate = _clk_pll_set_rate, .get_rate = _clk_pll_get_rate, .enable = _clk_pll_enable, .disable = _clk_pll_disable, }; /* same as pll4_main_clk. These two clocks should always be the same */ static struct clk pll4_sw_clk = { __INIT_CLK_DEBUG(pll4_sw_clk) .parent = &osc_clk, .set_rate = _clk_pll_set_rate, .get_rate = _clk_pll_get_rate, .enable = _clk_pll_enable, .disable = _clk_pll_disable, }; static int _clk_lp_apm_set_parent(struct clk *clk, struct clk *parent) { u32 reg; if (parent == &osc_clk) reg = __raw_readl(MXC_CCM_CCSR) & ~MXC_CCM_CCSR_LP_APM_SEL; else if (parent == &fpm_clk) reg = __raw_readl(MXC_CCM_CCSR) | MXC_CCM_CCSR_LP_APM_SEL; else return -EINVAL; __raw_writel(reg, MXC_CCM_CCSR); return 0; } static struct clk lp_apm_clk = { __INIT_CLK_DEBUG(lp_apm_clk) .parent = &osc_clk, .set_parent = _clk_lp_apm_set_parent, }; static unsigned long _clk_arm_get_rate(struct clk *clk) { u32 cacrr, div; cacrr = __raw_readl(MXC_CCM_CACRR); div = (cacrr & MXC_CCM_CACRR_ARM_PODF_MASK) + 1; return clk_get_rate(clk->parent) / div; } static int _clk_cpu_set_rate(struct clk *clk, unsigned long rate) { u32 i; for (i = 0; i < cpu_op_nr; i++) { if (rate == cpu_op_tbl[i].cpu_rate) break; } if (i >= cpu_op_nr) return -EINVAL; cpu_clk_set_op(i); return 0; } static unsigned long _clk_cpu_round_rate(struct clk *clk, unsigned long rate) { u32 i; u32 op; for (i = 0; i < cpu_op_nr; i++) { if (rate == cpu_op_tbl[i].cpu_rate) break; } if (i > cpu_op_nr) op = 0; return cpu_op_tbl[op].cpu_rate; } static struct clk cpu_clk = { __INIT_CLK_DEBUG(cpu_clk) .parent = &pll1_sw_clk, .get_rate = _clk_arm_get_rate, .set_rate = _clk_cpu_set_rate, .round_rate = _clk_cpu_round_rate, }; static int _clk_periph_apm_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; struct timespec nstimeofday; struct timespec curtime; mux = _get_mux(parent, &pll1_sw_clk, &pll3_sw_clk, &lp_apm_clk, NULL); reg = __raw_readl(MXC_CCM_CBCMR) & ~MXC_CCM_CBCMR_PERIPH_CLK_SEL_MASK; reg |= mux << MXC_CCM_CBCMR_PERIPH_CLK_SEL_OFFSET; __raw_writel(reg, MXC_CCM_CBCMR); getnstimeofday(&nstimeofday); while (__raw_readl(MXC_CCM_CDHIPR) & MXC_CCM_CDHIPR_PERIPH_CLK_SEL_BUSY) { getnstimeofday(&curtime); if (curtime.tv_nsec - nstimeofday.tv_nsec > SPIN_DELAY) panic("pll _clk_periph_apm_set_parent failed\n"); } return 0; } static struct clk periph_apm_clk = { __INIT_CLK_DEBUG(periph_apm_clk) .parent = &pll1_sw_clk, .set_parent = _clk_periph_apm_set_parent, }; /* TODO: Need to sync with GPC to determine if DVFS is in place so that * the DVFS_PODF divider can be applied in CDCR register. */ static unsigned long _clk_main_bus_get_rate(struct clk *clk) { u32 div = 0; if (dvfs_per_divider_active() || low_bus_freq_mode) div = (__raw_readl(MXC_CCM_CDCR) & 0x3); return clk_get_rate(clk->parent) / (div + 1); } static int _clk_main_bus_set_parent(struct clk *clk, struct clk *parent) { u32 reg; if (emi_fast_clk.usecount == 0) emi_fast_clk.enable(&emi_fast_clk); if (emi_slow_clk.usecount == 0) emi_slow_clk.enable(&emi_slow_clk); if (parent == &pll2_sw_clk) { reg = __raw_readl(MXC_CCM_CBCDR) & ~MXC_CCM_CBCDR_PERIPH_CLK_SEL; } else if (parent == &periph_apm_clk) { reg = __raw_readl(MXC_CCM_CBCDR) | MXC_CCM_CBCDR_PERIPH_CLK_SEL; } else { return -EINVAL; } __raw_writel(reg, MXC_CCM_CBCDR); if (emi_fast_clk.usecount == 0) emi_fast_clk.disable(&emi_fast_clk); if (emi_slow_clk.usecount == 0) emi_slow_clk.disable(&emi_slow_clk); return 0; } static struct clk main_bus_clk = { __INIT_CLK_DEBUG(main_bus_clk) .parent = &pll2_sw_clk, .set_parent = _clk_main_bus_set_parent, .get_rate = _clk_main_bus_get_rate, }; static unsigned long _clk_axi_a_get_rate(struct clk *clk) { u32 reg, div; reg = __raw_readl(MXC_CCM_CBCDR); div = ((reg & MXC_CCM_CBCDR_AXI_A_PODF_MASK) >> MXC_CCM_CBCDR_AXI_A_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / div; } static int _clk_axi_a_set_rate(struct clk *clk, unsigned long rate) { u32 reg, div; struct timespec nstimeofday; struct timespec curtime; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; if (div == 0) div++; if (((parent_rate / div) != rate) || (div > 8)) return -EINVAL; if (emi_fast_clk.usecount == 0) emi_fast_clk.enable(&emi_fast_clk); if (emi_slow_clk.usecount == 0) emi_slow_clk.enable(&emi_slow_clk); reg = __raw_readl(MXC_CCM_CBCDR); reg &= ~MXC_CCM_CBCDR_AXI_A_PODF_MASK; reg |= (div - 1) << MXC_CCM_CBCDR_AXI_A_PODF_OFFSET; __raw_writel(reg, MXC_CCM_CBCDR); getnstimeofday(&nstimeofday); while (__raw_readl(MXC_CCM_CDHIPR) & MXC_CCM_CDHIPR_AXI_A_PODF_BUSY) { getnstimeofday(&curtime); if (curtime.tv_nsec - nstimeofday.tv_nsec > SPIN_DELAY) panic("pll _clk_axi_a_set_rate failed\n"); } if (emi_fast_clk.usecount == 0) emi_fast_clk.disable(&emi_fast_clk); if (emi_slow_clk.usecount == 0) emi_slow_clk.disable(&emi_slow_clk); return 0; } static unsigned long _clk_axi_a_round_rate(struct clk *clk, unsigned long rate) { u32 div; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; /* Make sure rate is not greater than the maximum value for the clock. * Also prevent a div of 0. */ if (div == 0) div++; if (parent_rate / div > max_axi_a_clk) div++; if (div > 8) div = 8; return parent_rate / div; } static struct clk axi_a_clk = { __INIT_CLK_DEBUG(axi_a_clk) .parent = &main_bus_clk, .get_rate = _clk_axi_a_get_rate, .set_rate = _clk_axi_a_set_rate, .round_rate = _clk_axi_a_round_rate, }; static unsigned long _clk_ddr_hf_get_rate(struct clk *clk) { u32 reg, div; reg = __raw_readl(MXC_CCM_CBCDR); div = ((reg & MXC_CCM_CBCDR_DDR_PODF_MASK) >> MXC_CCM_CBCDR_DDR_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / div; } static unsigned long _clk_ddr_hf_round_rate(struct clk *clk, unsigned long rate) { u32 div; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; /* Make sure rate is not greater than the maximum value for the clock. * Also prevent a div of 0. */ if (div == 0) div++; if (parent_rate / div > MAX_DDR_HF_RATE) div++; if (div > 8) div = 8; return parent_rate / div; } static int _clk_ddr_hf_set_rate(struct clk *clk, unsigned long rate) { u32 reg, div; struct timespec nstimeofday; struct timespec curtime; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; if (div == 0) div++; if (((parent_rate / div) != rate) || (div > 8)) return -EINVAL; if (emi_fast_clk.usecount == 0) emi_fast_clk.enable(&emi_fast_clk); if (emi_slow_clk.usecount == 0) emi_slow_clk.enable(&emi_slow_clk); reg = __raw_readl(MXC_CCM_CBCDR); reg &= ~MXC_CCM_CBCDR_DDR_PODF_MASK; reg |= (div - 1) << MXC_CCM_CBCDR_DDR_PODF_OFFSET; __raw_writel(reg, MXC_CCM_CBCDR); getnstimeofday(&nstimeofday); while (__raw_readl(MXC_CCM_CDHIPR) & MXC_CCM_CDHIPR_DDR_PODF_BUSY) { getnstimeofday(&curtime); if (curtime.tv_nsec - nstimeofday.tv_nsec > SPIN_DELAY) panic("clk_ddr_hf_set_rate failed\n"); } if (emi_fast_clk.usecount == 0) emi_fast_clk.disable(&emi_fast_clk); if (emi_slow_clk.usecount == 0) emi_slow_clk.disable(&emi_slow_clk); return 0; } static struct clk ddr_hf_clk = { __INIT_CLK_DEBUG(ddr_hf_clk) .parent = &pll1_sw_clk, .get_rate = _clk_ddr_hf_get_rate, .round_rate = _clk_ddr_hf_round_rate, .set_rate = _clk_ddr_hf_set_rate, }; static unsigned long _clk_axi_b_get_rate(struct clk *clk) { u32 reg, div; reg = __raw_readl(MXC_CCM_CBCDR); div = ((reg & MXC_CCM_CBCDR_AXI_B_PODF_MASK) >> MXC_CCM_CBCDR_AXI_B_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / div; } static int _clk_axi_b_set_rate(struct clk *clk, unsigned long rate) { u32 reg, div; struct timespec nstimeofday; struct timespec curtime; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; if (div == 0) div++; if (((parent_rate / div) != rate) || (div > 8)) return -EINVAL; emi_fast_clk.enable(&emi_fast_clk); if (emi_slow_clk.usecount == 0) emi_slow_clk.enable(&emi_slow_clk); reg = __raw_readl(MXC_CCM_CBCDR); reg &= ~MXC_CCM_CBCDR_AXI_B_PODF_MASK; reg |= (div - 1) << MXC_CCM_CBCDR_AXI_B_PODF_OFFSET; __raw_writel(reg, MXC_CCM_CBCDR); getnstimeofday(&nstimeofday); while (__raw_readl(MXC_CCM_CDHIPR) & MXC_CCM_CDHIPR_AXI_B_PODF_BUSY) { getnstimeofday(&curtime); if (curtime.tv_nsec - nstimeofday.tv_nsec > SPIN_DELAY) panic("_clk_axi_b_set_rate failed\n"); } emi_fast_clk.disable(&emi_fast_clk); if (emi_slow_clk.usecount == 0) emi_slow_clk.disable(&emi_slow_clk); return 0; } static unsigned long _clk_axi_b_round_rate(struct clk *clk, unsigned long rate) { u32 div; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; /* Make sure rate is not greater than the maximum value for the clock. * Also prevent a div of 0. */ if (div == 0) div++; if (parent_rate / div > max_axi_b_clk) div++; if (div > 8) div = 8; return parent_rate / div; } static struct clk axi_b_clk = { __INIT_CLK_DEBUG(axi_b_clk) .parent = &main_bus_clk, .get_rate = _clk_axi_b_get_rate, .set_rate = _clk_axi_b_set_rate, .round_rate = _clk_axi_b_round_rate, }; static unsigned long _clk_ahb_get_rate(struct clk *clk) { u32 reg, div; reg = __raw_readl(MXC_CCM_CBCDR); div = ((reg & MXC_CCM_CBCDR_AHB_PODF_MASK) >> MXC_CCM_CBCDR_AHB_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / div; } static int _clk_ahb_set_rate(struct clk *clk, unsigned long rate) { u32 reg, div; struct timespec nstimeofday; struct timespec curtime; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; if (div == 0) div++; if (((parent_rate / div) != rate) || (div > 8)) return -EINVAL; if (emi_fast_clk.usecount == 0) emi_fast_clk.enable(&emi_fast_clk); if (emi_slow_clk.usecount == 0) emi_slow_clk.enable(&emi_slow_clk); reg = __raw_readl(MXC_CCM_CBCDR); reg &= ~MXC_CCM_CBCDR_AHB_PODF_MASK; reg |= (div - 1) << MXC_CCM_CBCDR_AHB_PODF_OFFSET; __raw_writel(reg, MXC_CCM_CBCDR); getnstimeofday(&nstimeofday); while (__raw_readl(MXC_CCM_CDHIPR) & MXC_CCM_CDHIPR_AHB_PODF_BUSY) { getnstimeofday(&curtime); if (curtime.tv_nsec - nstimeofday.tv_nsec > SPIN_DELAY) panic("_clk_ahb_set_rate failed\n"); } if (emi_fast_clk.usecount == 0) emi_fast_clk.disable(&emi_fast_clk); if (emi_slow_clk.usecount == 0) emi_slow_clk.disable(&emi_slow_clk); return 0; } static unsigned long _clk_ahb_round_rate(struct clk *clk, unsigned long rate) { u32 div; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; /* Make sure rate is not greater than the maximum value for the clock. * Also prevent a div of 0. */ if (div == 0) div++; if (parent_rate / div > max_ahb_clk) div++; if (div > 8) div = 8; return parent_rate / div; } static struct clk ahb_clk = { __INIT_CLK_DEBUG(ahb_clk) .parent = &main_bus_clk, .get_rate = _clk_ahb_get_rate, .set_rate = _clk_ahb_set_rate, .round_rate = _clk_ahb_round_rate, }; static int _clk_max_enable(struct clk *clk) { u32 reg; _clk_enable(clk); /* Handshake with MAX when LPM is entered. */ reg = __raw_readl(MXC_CCM_CLPCR); if (cpu_is_mx51()) reg &= ~MXC_CCM_CLPCR_BYPASS_MAX_LPM_HS_MX51; else reg &= ~MXC_CCM_CLPCR_BYPASS_MAX_LPM_HS; __raw_writel(reg, MXC_CCM_CLPCR); return 0; } static void _clk_max_disable(struct clk *clk) { u32 reg; _clk_disable_inwait(clk); /* No Handshake with MAX when LPM is entered as its disabled. */ reg = __raw_readl(MXC_CCM_CLPCR); if (cpu_is_mx51()) reg |= MXC_CCM_CLPCR_BYPASS_MAX_LPM_HS_MX51; else reg |= MXC_CCM_CLPCR_BYPASS_MAX_LPM_HS; __raw_writel(reg, MXC_CCM_CLPCR); } static struct clk ahb_max_clk = { __INIT_CLK_DEBUG(ahb_max_clk) .parent = &ahb_clk, .enable_reg = MXC_CCM_CCGR0, .enable_shift = MXC_CCM_CCGRx_CG14_OFFSET, .enable = _clk_max_enable, .disable = _clk_max_disable, }; static int _clk_emi_slow_set_parent(struct clk *clk, struct clk *parent) { u32 reg; if (emi_fast_clk.usecount == 0) emi_fast_clk.enable(&emi_fast_clk); if (emi_slow_clk.usecount == 0) emi_slow_clk.enable(&emi_slow_clk); reg = __raw_readl(MXC_CCM_CBCDR); if (parent == &ahb_clk) { reg |= MXC_CCM_CBCDR_EMI_CLK_SEL; } else if (parent == &main_bus_clk) { reg &= ~MXC_CCM_CBCDR_EMI_CLK_SEL; } else { BUG(); } __raw_writel(reg, MXC_CCM_CBCDR); if (emi_fast_clk.usecount == 0) emi_fast_clk.disable(&emi_fast_clk); if (emi_slow_clk.usecount == 0) emi_slow_clk.disable(&emi_slow_clk); return 0; } static unsigned long _clk_emi_slow_get_rate(struct clk *clk) { u32 reg, div; reg = __raw_readl(MXC_CCM_CBCDR); div = ((reg & MXC_CCM_CBCDR_EMI_PODF_MASK) >> MXC_CCM_CBCDR_EMI_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / div; } static int _clk_emi_slow_set_rate(struct clk *clk, unsigned long rate) { u32 reg, div; struct timespec nstimeofday; struct timespec curtime; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; if (div == 0) div++; if (((parent_rate / div) != rate) || (div > 8)) return -EINVAL; if (emi_fast_clk.usecount == 0) emi_fast_clk.enable(&emi_fast_clk); reg = __raw_readl(MXC_CCM_CBCDR); reg &= ~MXC_CCM_CBCDR_EMI_PODF_MASK; reg |= (div - 1) << MXC_CCM_CBCDR_EMI_PODF_OFFSET; __raw_writel(reg, MXC_CCM_CBCDR); getnstimeofday(&nstimeofday); while (__raw_readl(MXC_CCM_CDHIPR) & MXC_CCM_CDHIPR_EMI_PODF_BUSY) { getnstimeofday(&curtime); if ((curtime.tv_nsec - nstimeofday.tv_nsec) > SPIN_DELAY) panic("_clk_emi_slow_set_rate failed\n"); } if (emi_fast_clk.usecount == 0) emi_fast_clk.disable(&emi_fast_clk); return 0; } static unsigned long _clk_emi_slow_round_rate(struct clk *clk, unsigned long rate) { u32 div; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; /* Make sure rate is not greater than the maximum value for the clock. * Also prevent a div of 0. */ if (div == 0) div++; if (parent_rate / div > max_emi_slow_clk) div++; if (div > 8) div = 8; return parent_rate / div; } static struct clk emi_slow_clk = { __INIT_CLK_DEBUG(emi_slow_clk) .parent = &main_bus_clk, .set_parent = _clk_emi_slow_set_parent, .get_rate = _clk_emi_slow_get_rate, .set_rate = _clk_emi_slow_set_rate, .round_rate = _clk_emi_slow_round_rate, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGRx_CG8_OFFSET, .disable = _clk_disable_inwait, }; static struct clk ahbmux1_clk = { __INIT_CLK_DEBUG(ahbmux1_clk) .id = 0, .parent = &ahb_clk, .secondary = &ahb_max_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR0, .enable_shift = MXC_CCM_CCGRx_CG8_OFFSET, .disable = _clk_disable_inwait, }; static struct clk ahbmux2_clk = { __INIT_CLK_DEBUG(ahbmux2_clk) .id = 0, .parent = &ahb_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR0, .enable_shift = MXC_CCM_CCGRx_CG9_OFFSET, .disable = _clk_disable_inwait, }; static struct clk emi_fast_clk = { __INIT_CLK_DEBUG(emi_fast_clk) .parent = &ddr_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGRx_CG7_OFFSET, .disable = _clk_disable_inwait, }; static struct clk emi_intr_clk[] = { { __INIT_CLK_DEBUG(emi_intr_clk_0) .id = 0, .parent = &ahb_clk, .secondary = &ahbmux2_clk, .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGRx_CG9_OFFSET, .enable = _clk_enable, .disable = _clk_disable_inwait, }, { /* On MX51 - this clock is name emi_garb_clk, and controls the * access of ARM to GARB. */ __INIT_CLK_DEBUG(emi_intr_clk_1) .id = 1, .parent = &ahb_clk, .secondary = &ahbmux2_clk, .enable_reg = MXC_CCM_CCGR6, .enable_shift = MXC_CCM_CCGRx_CG4_OFFSET, .enable = _clk_enable, .disable = _clk_disable_inwait, } }; static unsigned long _clk_ipg_get_rate(struct clk *clk) { u32 reg, div; reg = __raw_readl(MXC_CCM_CBCDR); div = ((reg & MXC_CCM_CBCDR_IPG_PODF_MASK) >> MXC_CCM_CBCDR_IPG_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / div; } static struct clk ipg_clk = { __INIT_CLK_DEBUG(ipg_clk) .parent = &ahb_clk, .get_rate = _clk_ipg_get_rate, }; static unsigned long _clk_ipg_per_get_rate(struct clk *clk) { u32 reg, prediv1, prediv2, podf; if (clk->parent == &main_bus_clk || clk->parent == &lp_apm_clk) { /* the main_bus_clk is the one before the DVFS engine */ reg = __raw_readl(MXC_CCM_CBCDR); prediv1 = ((reg & MXC_CCM_CBCDR_PERCLK_PRED1_MASK) >> MXC_CCM_CBCDR_PERCLK_PRED1_OFFSET) + 1; prediv2 = ((reg & MXC_CCM_CBCDR_PERCLK_PRED2_MASK) >> MXC_CCM_CBCDR_PERCLK_PRED2_OFFSET) + 1; podf = ((reg & MXC_CCM_CBCDR_PERCLK_PODF_MASK) >> MXC_CCM_CBCDR_PERCLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / (prediv1 * prediv2 * podf); } else if (clk->parent == &ipg_clk) { return clk_get_rate(&ipg_clk); } BUG(); return 0; } static int _clk_ipg_per_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; reg = __raw_readl(MXC_CCM_CBCMR); mux = _get_mux(parent, &main_bus_clk, &lp_apm_clk, &ipg_clk, NULL); if (mux == 2) { reg |= MXC_CCM_CBCMR_PERCLK_IPG_CLK_SEL; } else { reg &= ~MXC_CCM_CBCMR_PERCLK_IPG_CLK_SEL; if (mux == 0) reg &= ~MXC_CCM_CBCMR_PERCLK_LP_APM_CLK_SEL; else reg |= MXC_CCM_CBCMR_PERCLK_LP_APM_CLK_SEL; } __raw_writel(reg, MXC_CCM_CBCMR); return 0; } static struct clk ipg_perclk = { __INIT_CLK_DEBUG(ipg_perclk) .parent = &lp_apm_clk, .get_rate = _clk_ipg_per_get_rate, .set_parent = _clk_ipg_per_set_parent, }; static int _clk_ipmux_enable(struct clk *clk) { u32 reg; reg = __raw_readl(clk->enable_reg); reg |= 1 << clk->enable_shift; __raw_writel(reg, clk->enable_reg); return 0; } static void _clk_ipmux_disable(struct clk *clk) { u32 reg; reg = __raw_readl(clk->enable_reg); reg &= ~(0x1 << clk->enable_shift); __raw_writel(reg, clk->enable_reg); } static struct clk ipumux1_clk = { __INIT_CLK_DEBUG(ipumux1_clk) .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGR5_CG6_1_OFFSET, .enable = _clk_ipmux_enable, .disable = _clk_ipmux_disable, }; static struct clk ipumux2_clk = { __INIT_CLK_DEBUG(ipumux2_clk) .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGR5_CG6_2_OFFSET, .enable = _clk_ipmux_enable, .disable = _clk_ipmux_disable, }; static int _clk_ocram_enable(struct clk *clk) { return 0; } static void _clk_ocram_disable(struct clk *clk) { } static struct clk ocram_clk = { __INIT_CLK_DEBUG(ocram_clk) .enable_reg = MXC_CCM_CCGR6, .enable_shift = MXC_CCM_CCGRx_CG1_OFFSET, .enable = _clk_ocram_enable, .disable = _clk_ocram_disable, }; static struct clk aips_tz1_clk = { __INIT_CLK_DEBUG(aips_tz1_clk) .parent = &ahb_clk, .secondary = &ahb_max_clk, .enable_reg = MXC_CCM_CCGR0, .enable_shift = MXC_CCM_CCGRx_CG12_OFFSET, .enable = _clk_enable, .disable = _clk_disable_inwait, }; static struct clk aips_tz2_clk = { __INIT_CLK_DEBUG(aips_tz2_clk) .parent = &ahb_clk, .secondary = &ahb_max_clk, .enable_reg = MXC_CCM_CCGR0, .enable_shift = MXC_CCM_CCGRx_CG13_OFFSET, .enable = _clk_enable, .disable = _clk_disable_inwait, }; static struct clk gpc_dvfs_clk = { __INIT_CLK_DEBUG(gpc_dvfs_clk) .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGRx_CG12_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }; static int _clk_sdma_enable(struct clk *clk) { u32 reg; _clk_enable(clk); /* Handshake with SDMA when LPM is entered. */ reg = __raw_readl(MXC_CCM_CLPCR); if (cpu_is_mx51()) reg &= ~MXC_CCM_CLPCR_BYPASS_SDMA_LPM_HS_MX51; else reg &= ~MXC_CCM_CLPCR_BYPASS_SDMA_LPM_HS; __raw_writel(reg, MXC_CCM_CLPCR); return 0; } static void _clk_sdma_disable(struct clk *clk) { u32 reg; _clk_disable(clk); /* No handshake with SDMA as its not enabled. */ reg = __raw_readl(MXC_CCM_CLPCR); if (cpu_is_mx51()) reg |= MXC_CCM_CLPCR_BYPASS_SDMA_LPM_HS_MX51; else reg |= MXC_CCM_CLPCR_BYPASS_SDMA_LPM_HS; __raw_writel(reg, MXC_CCM_CLPCR); } static struct clk sdma_clk[] = { { __INIT_CLK_DEBUG(sdma_clk) .parent = &ahb_clk, .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG15_OFFSET, .enable = _clk_sdma_enable, .disable = _clk_sdma_disable, }, { .parent = &ipg_clk, #ifdef CONFIG_SDMA_IRAM .secondary = &emi_intr_clk[0], #endif }, }; static int _clk_ipu_enable(struct clk *clk) { u32 reg; _clk_enable(clk); /* Handshake with IPU when certain clock rates are changed. */ reg = __raw_readl(MXC_CCM_CCDR); if (cpu_is_mx51()) reg &= ~MXC_CCM_CCDR_IPU_HS_MASK; else reg &= ~MXC_CCM_CCDR_IPU_HS_MX53_MASK; __raw_writel(reg, MXC_CCM_CCDR); /* Handshake with IPU when LPM is entered as its enabled. */ reg = __raw_readl(MXC_CCM_CLPCR); reg &= ~MXC_CCM_CLPCR_BYPASS_IPU_LPM_HS; __raw_writel(reg, MXC_CCM_CLPCR); start_sdram_autogating(); return 0; } static void _clk_ipu_disable(struct clk *clk) { u32 reg; if (sdram_autogating_active()) stop_sdram_autogating(); _clk_disable(clk); /* No handshake with IPU whe dividers are changed * as its not enabled. */ reg = __raw_readl(MXC_CCM_CCDR); if (cpu_is_mx51()) reg |= MXC_CCM_CCDR_IPU_HS_MASK; else reg |= MXC_CCM_CCDR_IPU_HS_MX53_MASK; __raw_writel(reg, MXC_CCM_CCDR); /* No handshake with IPU when LPM is entered as its not enabled. */ reg = __raw_readl(MXC_CCM_CLPCR); reg |= MXC_CCM_CLPCR_BYPASS_IPU_LPM_HS; __raw_writel(reg, MXC_CCM_CLPCR); } static int _clk_ipu_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; reg = __raw_readl(MXC_CCM_CBCMR); mux = _get_mux(parent, &axi_a_clk, &axi_b_clk, &ahb_clk, &emi_slow_clk); reg = (reg & ~MXC_CCM_CBCMR_IPU_HSP_CLK_SEL_MASK) | (mux << MXC_CCM_CBCMR_IPU_HSP_CLK_SEL_OFFSET); __raw_writel(reg, MXC_CCM_CBCMR); return 0; } static struct clk ipu_clk[] = { { __INIT_CLK_DEBUG(ipu_clk) .parent = &ahb_clk, .secondary = &ipu_clk[1], .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGRx_CG5_OFFSET, .enable = _clk_ipu_enable, .disable = _clk_ipu_disable, .set_parent = _clk_ipu_set_parent, .flags = CPU_FREQ_TRIG_UPDATE | AHB_MED_SET_POINT, }, { __INIT_CLK_DEBUG(ipu_clk_1) .parent = &emi_fast_clk, .secondary = &ahbmux1_clk, } }; static int _clk_ipu_di_set_parent(struct clk *clk, struct clk *parent) { u32 reg; reg = __raw_readl(MXC_CCM_CSCMR2); reg &= ~MXC_CCM_CSCMR2_DI_CLK_SEL_MASK(clk->id); if (parent == &pll3_sw_clk) ; else if (parent == &osc_clk) reg |= 1 << MXC_CCM_CSCMR2_DI_CLK_SEL_OFFSET(clk->id); else if (parent == &ckih_clk) reg |= 2 << MXC_CCM_CSCMR2_DI_CLK_SEL_OFFSET(clk->id); else if ((parent == &pll4_sw_clk) && (clk->id == 0)) { if (cpu_is_mx51()) return -EINVAL; reg |= 3 << MXC_CCM_CSCMR2_DI_CLK_SEL_OFFSET(clk->id); } else if ((parent == &tve_clk) && (clk->id == 1)) reg |= 3 << MXC_CCM_CSCMR2_DI_CLK_SEL_OFFSET(clk->id); else if ((parent == &ldb_di_clk[clk->id]) && cpu_is_mx53()) reg |= 5 << MXC_CCM_CSCMR2_DI_CLK_SEL_OFFSET(clk->id); else /* Assume any other clock is external clock pin */ reg |= 4 << MXC_CCM_CSCMR2_DI_CLK_SEL_OFFSET(clk->id); __raw_writel(reg, MXC_CCM_CSCMR2); return 0; } static int priv_div; static unsigned long _clk_ipu_di_get_rate(struct clk *clk) { u32 reg, mux; u32 div = 1; reg = __raw_readl(MXC_CCM_CSCMR2); mux = (reg & MXC_CCM_CSCMR2_DI_CLK_SEL_MASK(clk->id)) >> MXC_CCM_CSCMR2_DI_CLK_SEL_OFFSET(clk->id); if (mux == 0) { reg = __raw_readl(MXC_CCM_CDCDR) & MXC_CCM_CDCDR_DI1_CLK_PRED_MASK; div = (reg >> MXC_CCM_CDCDR_DI1_CLK_PRED_OFFSET) + 1; } else if ((mux == 3) && (clk->id == 1)) { if (priv_div) div = priv_div; } else if ((mux == 3) && (clk->id == 0)) { reg = __raw_readl(MXC_CCM_CDCDR) & MXC_CCM_CDCDR_DI_PLL4_PODF_MASK; div = (reg >> MXC_CCM_CDCDR_DI_PLL4_PODF_OFFSET) + 1; } return clk_get_rate(clk->parent) / div; } static int _clk_ipu_di_set_rate(struct clk *clk, unsigned long rate) { u32 reg, div; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; if (div == 0) div++; if (((parent_rate / div) != rate) || (div > 8)) return -EINVAL; if ((clk->parent == &pll4_sw_clk) && (clk->id == 0)) { reg = __raw_readl(MXC_CCM_CDCDR); reg &= ~MXC_CCM_CDCDR_DI_PLL4_PODF_MASK; reg |= (div - 1) << MXC_CCM_CDCDR_DI_PLL4_PODF_OFFSET; __raw_writel(reg, MXC_CCM_CDCDR); } else if (clk->parent == &pll3_sw_clk) { reg = __raw_readl(MXC_CCM_CDCDR); reg &= ~MXC_CCM_CDCDR_DI1_CLK_PRED_MASK; reg |= (div - 1) << MXC_CCM_CDCDR_DI1_CLK_PRED_OFFSET; __raw_writel(reg, MXC_CCM_CDCDR); } else if (((clk->parent == &tve_clk) && (clk->id == 1)) || ((clk->parent == &ldb_di_clk[clk->id]) && cpu_is_mx53())) { priv_div = div; return 0; } else return -EINVAL; return 0; } static unsigned long _clk_ipu_di_round_rate(struct clk *clk, unsigned long rate) { u32 div; u32 parent_rate = clk_get_rate(clk->parent); if ((clk->parent == &ldb_di_clk[clk->id]) && cpu_is_mx53()) return parent_rate; else { div = (parent_rate + rate/2) / rate; if (div > 8) div = 8; else if (div == 0) div++; return parent_rate / div; } } static struct clk ipu_di_clk[] = { { __INIT_CLK_DEBUG(ipu_di_clk_0) .id = 0, .parent = &pll3_sw_clk, .enable_reg = MXC_CCM_CCGR6, .enable_shift = MXC_CCM_CCGRx_CG5_OFFSET, .get_rate = _clk_ipu_di_get_rate, .set_parent = _clk_ipu_di_set_parent, .round_rate = _clk_ipu_di_round_rate, .set_rate = _clk_ipu_di_set_rate, .enable = _clk_enable, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(ipu_di_clk_1) .id = 1, .parent = &pll3_sw_clk, .enable_reg = MXC_CCM_CCGR6, .enable_shift = MXC_CCM_CCGRx_CG6_OFFSET, .get_rate = _clk_ipu_di_get_rate, .set_parent = _clk_ipu_di_set_parent, .round_rate = _clk_ipu_di_round_rate, .set_rate = _clk_ipu_di_set_rate, .enable = _clk_enable, .disable = _clk_disable, }, }; static int _clk_ldb_di_set_parent(struct clk *clk, struct clk *parent) { u32 reg; reg = __raw_readl(MXC_CCM_CSCMR2); if ((parent == &pll3_sw_clk)) { if (clk->id == 0) reg &= ~(MXC_CCM_CSCMR2_LDB_DI0_CLK_SEL); else reg &= ~(MXC_CCM_CSCMR2_LDB_DI1_CLK_SEL); } else if ((parent == &pll4_sw_clk)) { if (clk->id == 0) reg |= MXC_CCM_CSCMR2_LDB_DI0_CLK_SEL; else reg |= MXC_CCM_CSCMR2_LDB_DI1_CLK_SEL; } else { BUG(); } __raw_writel(reg, MXC_CCM_CSCMR2); return 0; } static unsigned long _clk_ldb_di_get_rate(struct clk *clk) { u32 div; if (clk->id == 0) div = __raw_readl(MXC_CCM_CSCMR2) & MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV; else div = __raw_readl(MXC_CCM_CSCMR2) & MXC_CCM_CSCMR2_LDB_DI1_IPU_DIV; if (div) return clk_get_rate(clk->parent) / 7; return (2 * clk_get_rate(clk->parent)) / 7; } static unsigned long _clk_ldb_di_round_rate(struct clk *clk, unsigned long rate) { u32 parent_rate = clk_get_rate(clk->parent); if (rate * 7 <= parent_rate + parent_rate/20) return parent_rate / 7; else return 2 * parent_rate / 7; } static int _clk_ldb_di_set_rate(struct clk *clk, unsigned long rate) { u32 reg, div = 0; u32 parent_rate = clk_get_rate(clk->parent); if (rate * 7 <= parent_rate + parent_rate/20) { div = 7; rate = parent_rate / 7; } else rate = 2 * parent_rate / 7; reg = __raw_readl(MXC_CCM_CSCMR2); if (div == 7) reg |= (clk->id ? MXC_CCM_CSCMR2_LDB_DI1_IPU_DIV : MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV); else reg &= ~(clk->id ? MXC_CCM_CSCMR2_LDB_DI1_IPU_DIV : MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV); __raw_writel(reg, MXC_CCM_CSCMR2); return 0; } static int _clk_ldb_di_enable(struct clk *clk) { _clk_enable(clk); ipu_di_clk[clk->id].set_parent(&ipu_di_clk[clk->id], clk); ipu_di_clk[clk->id].parent = clk; ipu_di_clk[clk->id].enable(&ipu_di_clk[clk->id]); ipu_di_clk[clk->id].usecount++; return 0; } static void _clk_ldb_di_disable(struct clk *clk) { _clk_disable(clk); ipu_di_clk[clk->id].disable(&ipu_di_clk[clk->id]); ipu_di_clk[clk->id].usecount--; } static struct clk ldb_di_clk[] = { { __INIT_CLK_DEBUG(ldb_di_clk_0) .id = 0, .parent = &pll4_sw_clk, .enable_reg = MXC_CCM_CCGR6, .enable_shift = MXC_CCM_CCGRx_CG14_OFFSET, .get_rate = _clk_ldb_di_get_rate, .set_parent = _clk_ldb_di_set_parent, .round_rate = _clk_ldb_di_round_rate, .set_rate = _clk_ldb_di_set_rate, .enable = _clk_ldb_di_enable, .disable = _clk_ldb_di_disable, .flags = AHB_MED_SET_POINT, }, { __INIT_CLK_DEBUG(ldb_di_clk_1) .id = 1, .parent = &pll4_sw_clk, .enable_reg = MXC_CCM_CCGR6, .enable_shift = MXC_CCM_CCGRx_CG15_OFFSET, .get_rate = _clk_ldb_di_get_rate, .set_parent = _clk_ldb_di_set_parent, .round_rate = _clk_ldb_di_round_rate, .set_rate = _clk_ldb_di_set_rate, .enable = _clk_ldb_di_enable, .disable = _clk_ldb_di_disable, .flags = AHB_MED_SET_POINT, }, }; static int _clk_csi0_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; reg = __raw_readl(MXC_CCM_CSCMR2); mux = _get_mux(parent, &pll1_sw_clk, &pll2_sw_clk, &pll3_sw_clk, NULL); reg = (reg & ~MXC_CCM_CSCMR2_CSI_MCLK1_CLK_SEL_MASK) | (mux << MXC_CCM_CSCMR2_CSI_MCLK1_CLK_SEL_OFFSET); __raw_writel(reg, MXC_CCM_CSCMR2); return 0; } static unsigned long _clk_csi0_get_rate(struct clk *clk) { u32 reg, pred, podf; reg = __raw_readl(MXC_CCM_CSCDR4); pred = ((reg & MXC_CCM_CSCDR4_CSI_MCLK1_CLK_PRED_MASK) >> MXC_CCM_CSCDR4_CSI_MCLK1_CLK_PRED_OFFSET) + 1; podf = ((reg & MXC_CCM_CSCDR4_CSI_MCLK1_CLK_PODF_MASK) >> MXC_CCM_CSCDR4_CSI_MCLK1_CLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent)/(pred * podf); } static unsigned long _clk_csi0_round_rate(struct clk *clk, unsigned long rate) { u32 pre, post; u32 parent_rate = clk_get_rate(clk->parent); u32 div = parent_rate / rate; if (parent_rate % rate) div++; __calc_pre_post_dividers(div, &pre, &post); return parent_rate / (pre * post); } static int _clk_csi0_set_rate(struct clk *clk, unsigned long rate) { u32 reg; u32 div; u32 pre, post; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; if ((parent_rate / div) != rate) return -EINVAL; __calc_pre_post_dividers(div, &pre, &post); /* Set CSI clock divider */ reg = __raw_readl(MXC_CCM_CSCDR4) & ~(MXC_CCM_CSCDR4_CSI_MCLK1_CLK_PRED_MASK | MXC_CCM_CSCDR4_CSI_MCLK1_CLK_PODF_MASK); reg |= (post - 1) << MXC_CCM_CSCDR4_CSI_MCLK1_CLK_PODF_OFFSET; reg |= (pre - 1) << MXC_CCM_CSCDR4_CSI_MCLK1_CLK_PRED_OFFSET; __raw_writel(reg, MXC_CCM_CSCDR4); return 0; } static struct clk csi0_clk = { .parent = &pll3_sw_clk, .set_parent = _clk_csi0_set_parent, .get_rate = _clk_csi0_get_rate, .round_rate = _clk_csi0_round_rate, .set_rate = _clk_csi0_set_rate, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR6, .enable_shift = MXC_CCM_CCGRx_CG2_OFFSET, .disable = _clk_disable, }; static int _clk_csi1_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; reg = __raw_readl(MXC_CCM_CSCMR2); mux = _get_mux(parent, &pll1_sw_clk, &pll2_sw_clk, &pll3_sw_clk, NULL); reg = (reg & ~MXC_CCM_CSCMR2_CSI_MCLK2_CLK_SEL_MASK) | (mux << MXC_CCM_CSCMR2_CSI_MCLK2_CLK_SEL_OFFSET); __raw_writel(reg, MXC_CCM_CSCMR2); return 0; } static unsigned long _clk_csi1_get_rate(struct clk *clk) { u32 reg, pred, podf; reg = __raw_readl(MXC_CCM_CSCDR4); pred = ((reg & MXC_CCM_CSCDR4_CSI_MCLK2_CLK_PRED_MASK) >> MXC_CCM_CSCDR4_CSI_MCLK2_CLK_PRED_OFFSET) + 1; podf = ((reg & MXC_CCM_CSCDR4_CSI_MCLK2_CLK_PODF_MASK) >> MXC_CCM_CSCDR4_CSI_MCLK2_CLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent)/(pred * podf) ; } static unsigned long _clk_csi1_round_rate(struct clk *clk, unsigned long rate) { u32 pre, post; u32 parent_rate = clk_get_rate(clk->parent); u32 div = parent_rate / rate; if (parent_rate % rate) div++; __calc_pre_post_dividers(div, &pre, &post); return parent_rate / (pre * post); } static int _clk_csi1_set_rate(struct clk *clk, unsigned long rate) { u32 reg; u32 div; u32 pre, post; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; if ((parent_rate / div) != rate) return -EINVAL; __calc_pre_post_dividers(div, &pre, &post); /* Set CSI clock divider */ reg = __raw_readl(MXC_CCM_CSCDR4) & ~(MXC_CCM_CSCDR4_CSI_MCLK2_CLK_PRED_MASK | MXC_CCM_CSCDR4_CSI_MCLK2_CLK_PODF_MASK); reg |= (post - 1) << MXC_CCM_CSCDR4_CSI_MCLK2_CLK_PODF_OFFSET; reg |= (pre - 1) << MXC_CCM_CSCDR4_CSI_MCLK2_CLK_PRED_OFFSET; __raw_writel(reg, MXC_CCM_CSCDR4); return 0; } static struct clk csi1_clk = { __INIT_CLK_DEBUG(csi1_clk) .parent = &pll3_sw_clk, .set_parent = _clk_csi1_set_parent, .get_rate = _clk_csi1_get_rate, .round_rate = _clk_csi1_round_rate, .set_rate = _clk_csi1_set_rate, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR6, .enable_shift = MXC_CCM_CCGRx_CG3_OFFSET, .disable = _clk_disable, }; static int _clk_hsc_enable(struct clk *clk) { u32 reg; _clk_enable(clk); /* Handshake with IPU when certain clock rates are changed. */ reg = __raw_readl(MXC_CCM_CCDR); reg &= ~MXC_CCM_CCDR_HSC_HS_MASK; __raw_writel(reg, MXC_CCM_CCDR); reg = __raw_readl(MXC_CCM_CLPCR); reg &= ~MXC_CCM_CLPCR_BYPASS_HSC_LPM_HS; __raw_writel(reg, MXC_CCM_CLPCR); return 0; } static void _clk_hsc_disable(struct clk *clk) { u32 reg; _clk_disable(clk); /* No handshake with HSC as its not enabled. */ reg = __raw_readl(MXC_CCM_CCDR); reg |= MXC_CCM_CCDR_HSC_HS_MASK; __raw_writel(reg, MXC_CCM_CCDR); reg = __raw_readl(MXC_CCM_CLPCR); reg |= MXC_CCM_CLPCR_BYPASS_HSC_LPM_HS; __raw_writel(reg, MXC_CCM_CLPCR); } static struct clk mipi_esc_clk = { __INIT_CLK_DEBUG(mipi_esc_clk) .parent = &pll2_sw_clk, .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG5_OFFSET, }; static struct clk mipi_hsc2_clk = { __INIT_CLK_DEBUG(mipi_hsc2_clk) .parent = &pll2_sw_clk, .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG4_OFFSET, .secondary = &mipi_esc_clk, }; static struct clk mipi_hsc1_clk = { __INIT_CLK_DEBUG(mipi_hsc1_clk) .parent = &pll2_sw_clk, .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG3_OFFSET, .secondary = &mipi_hsc2_clk, }; static struct clk mipi_hsp_clk = { __INIT_CLK_DEBUG(mipi_hsp_clk) .parent = &ipu_clk[0], .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG6_OFFSET, .enable = _clk_hsc_enable, .disable = _clk_hsc_disable, .secondary = &mipi_hsc1_clk, }; static int _clk_tve_set_parent(struct clk *clk, struct clk *parent) { u32 reg; reg = __raw_readl(MXC_CCM_CSCMR1); if ((parent == &pll3_sw_clk) && cpu_is_mx51()) { reg &= ~(MXC_CCM_CSCMR1_TVE_CLK_SEL); } else if ((parent == &pll4_sw_clk) && cpu_is_mx53()) { reg &= ~(MXC_CCM_CSCMR1_TVE_EXT_CLK_SEL); } else if ((parent == &osc_clk) && cpu_is_mx51()) { reg |= MXC_CCM_CSCMR1_TVE_CLK_SEL; reg &= ~MXC_CCM_CSCMR1_TVE_EXT_CLK_SEL; } else if (parent == &ckih_clk) { reg |= MXC_CCM_CSCMR1_TVE_EXT_CLK_SEL; reg |= MXC_CCM_CSCMR1_TVE_CLK_SEL; /* Reserved on MX53 */ } else { BUG(); } __raw_writel(reg, MXC_CCM_CSCMR1); return 0; } static unsigned long _clk_tve_get_rate(struct clk *clk) { u32 reg, div = 1; reg = __raw_readl(MXC_CCM_CSCMR1); if ((reg & (MXC_CCM_CSCMR1_TVE_CLK_SEL | MXC_CCM_CSCMR1_TVE_EXT_CLK_SEL)) == 0) { reg = __raw_readl(MXC_CCM_CDCDR) & MXC_CCM_CDCDR_TVE_CLK_PRED_MASK; div = (reg >> MXC_CCM_CDCDR_TVE_CLK_PRED_OFFSET) + 1; } return clk_get_rate(clk->parent) / div; } static unsigned long _clk_tve_round_rate(struct clk *clk, unsigned long rate) { u32 reg, div; u32 parent_rate = clk_get_rate(clk->parent); reg = __raw_readl(MXC_CCM_CSCMR1); if (cpu_is_mx51() && (reg & MXC_CCM_CSCMR1_TVE_CLK_SEL)) return -EINVAL; if (cpu_is_mx53() && (reg & MXC_CCM_CSCMR1_TVE_EXT_CLK_SEL)) return -EINVAL; div = (parent_rate + rate/2) / rate; if (div > 8) div = 8; else if (div == 0) div++; return parent_rate / div; } static int _clk_tve_set_rate(struct clk *clk, unsigned long rate) { u32 reg, div; u32 parent_rate = clk_get_rate(clk->parent); reg = __raw_readl(MXC_CCM_CSCMR1); if (cpu_is_mx51() && (reg & MXC_CCM_CSCMR1_TVE_CLK_SEL)) return -EINVAL; if (cpu_is_mx53() && (reg & MXC_CCM_CSCMR1_TVE_EXT_CLK_SEL)) return -EINVAL; div = parent_rate / rate; if (div == 0) div++; if (((parent_rate / div) != rate) || (div > 8)) return -EINVAL; div--; reg = __raw_readl(MXC_CCM_CDCDR) & ~MXC_CCM_CDCDR_TVE_CLK_PRED_MASK; reg |= div << MXC_CCM_CDCDR_TVE_CLK_PRED_OFFSET; __raw_writel(reg, MXC_CCM_CDCDR); return 0; } static struct clk tve_clk = { __INIT_CLK_DEBUG(tve_clk) .parent = &pll3_sw_clk, .set_parent = _clk_tve_set_parent, .enable_reg = MXC_CCM_CCGR2, .enable_shift = MXC_CCM_CCGRx_CG15_OFFSET, .get_rate = _clk_tve_get_rate, .round_rate = _clk_tve_round_rate, .set_rate = _clk_tve_set_rate, .enable = _clk_enable, .disable = _clk_disable, .flags = AHB_HIGH_SET_POINT | CPU_FREQ_TRIG_UPDATE, }; static struct clk spba_clk = { __INIT_CLK_DEBUG(spba_clk) .parent = &ipg_clk, .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGRx_CG0_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }; static unsigned long _clk_uart_get_rate(struct clk *clk) { u32 reg, prediv, podf; reg = __raw_readl(MXC_CCM_CSCDR1); prediv = ((reg & MXC_CCM_CSCDR1_UART_CLK_PRED_MASK) >> MXC_CCM_CSCDR1_UART_CLK_PRED_OFFSET) + 1; podf = ((reg & MXC_CCM_CSCDR1_UART_CLK_PODF_MASK) >> MXC_CCM_CSCDR1_UART_CLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent)/(prediv * podf) ; } static int _clk_uart_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; mux = _get_mux(parent, &pll1_sw_clk, &pll2_sw_clk, &pll3_sw_clk, &lp_apm_clk); reg = __raw_readl(MXC_CCM_CSCMR1) & ~MXC_CCM_CSCMR1_UART_CLK_SEL_MASK; reg |= mux << MXC_CCM_CSCMR1_UART_CLK_SEL_OFFSET; __raw_writel(reg, MXC_CCM_CSCMR1); return 0; } static struct clk uart_main_clk = { __INIT_CLK_DEBUG(uart_main_clk) .parent = &pll2_sw_clk, .get_rate = _clk_uart_get_rate, .set_parent = _clk_uart_set_parent, }; static struct clk uart1_clk[] = { { __INIT_CLK_DEBUG(uart1_clk_0) .id = 0, .parent = &uart_main_clk, .secondary = &uart1_clk[1], .enable_reg = MXC_CCM_CCGR1, .enable_shift = MXC_CCM_CCGRx_CG4_OFFSET, .enable = _clk_enable, .disable = _clk_disable, #if UART1_DMA_ENABLE .flags = AHB_HIGH_SET_POINT | CPU_FREQ_TRIG_UPDATE, #endif }, { __INIT_CLK_DEBUG(uart1_clk_1) .id = 0, .parent = &ipg_clk, #if UART1_DMA_ENABLE .secondary = &aips_tz1_clk, #endif .enable_reg = MXC_CCM_CCGR1, .enable_shift = MXC_CCM_CCGRx_CG3_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, }; static struct clk uart2_clk[] = { { __INIT_CLK_DEBUG(uart2_clk_0) .id = 1, .parent = &uart_main_clk, .secondary = &uart2_clk[1], .enable_reg = MXC_CCM_CCGR1, .enable_shift = MXC_CCM_CCGRx_CG6_OFFSET, .enable = _clk_enable, .disable = _clk_disable, #if UART2_DMA_ENABLE .flags = AHB_HIGH_SET_POINT | CPU_FREQ_TRIG_UPDATE, #endif }, { __INIT_CLK_DEBUG(uart2_clk_1) .id = 1, .parent = &ipg_clk, #if UART2_DMA_ENABLE .secondary = &aips_tz1_clk, #endif .enable_reg = MXC_CCM_CCGR1, .enable_shift = MXC_CCM_CCGRx_CG5_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, }; static struct clk uart3_clk[] = { { __INIT_CLK_DEBUG(uart3_clk_0) .id = 2, .parent = &uart_main_clk, .secondary = &uart3_clk[1], .enable_reg = MXC_CCM_CCGR1, .enable_shift = MXC_CCM_CCGRx_CG8_OFFSET, .enable = _clk_enable, .disable = _clk_disable, #if UART3_DMA_ENABLE .flags = AHB_HIGH_SET_POINT | CPU_FREQ_TRIG_UPDATE, #endif }, { __INIT_CLK_DEBUG(uart3_clk_1) .id = 2, .parent = &ipg_clk, .secondary = &spba_clk, .enable_reg = MXC_CCM_CCGR1, .enable_shift = MXC_CCM_CCGRx_CG7_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, }; static struct clk uart4_clk[] = { { __INIT_CLK_DEBUG(uart4_clk_0) .id = 3, .parent = &uart_main_clk, .secondary = &uart4_clk[1], .enable_reg = MXC_CCM_CCGR7, .enable_shift = MXC_CCM_CCGRx_CG5_OFFSET, .enable = _clk_enable, .disable = _clk_disable, #if UART4_DMA_ENABLE .flags = AHB_HIGH_SET_POINT | CPU_FREQ_TRIG_UPDATE, #endif }, { __INIT_CLK_DEBUG(uart4_clk_1) .id = 3, .parent = &ipg_clk, .secondary = &spba_clk, .enable_reg = MXC_CCM_CCGR7, .enable_shift = MXC_CCM_CCGRx_CG4_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, }; static struct clk uart5_clk[] = { { __INIT_CLK_DEBUG(uart5_clk_0) .id = 4, .parent = &uart_main_clk, .secondary = &uart5_clk[1], .enable_reg = MXC_CCM_CCGR7, .enable_shift = MXC_CCM_CCGRx_CG7_OFFSET, .enable = _clk_enable, .disable = _clk_disable, #if UART5_DMA_ENABLE .flags = AHB_HIGH_SET_POINT | CPU_FREQ_TRIG_UPDATE, #endif }, { __INIT_CLK_DEBUG(uart5_clk_1) .id = 4, .parent = &ipg_clk, .secondary = &spba_clk, .enable_reg = MXC_CCM_CCGR7, .enable_shift = MXC_CCM_CCGRx_CG6_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, }; static struct clk gpt_clk[] = { { __INIT_CLK_DEBUG(gpt_clki_0) .parent = &ipg_perclk, .id = 0, .enable_reg = MXC_CCM_CCGR2, .enable_shift = MXC_CCM_CCGRx_CG9_OFFSET, .enable = _clk_enable, .disable = _clk_disable, .secondary = &gpt_clk[1], }, { __INIT_CLK_DEBUG(gpt_clki_1) .id = 0, .parent = &ipg_clk, .enable_reg = MXC_CCM_CCGR2, .enable_shift = MXC_CCM_CCGRx_CG10_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(gpt_clki_2) .id = 0, .parent = &ckil_clk, }, }; static struct clk pwm1_clk[] = { { __INIT_CLK_DEBUG(pwm1_clk_0) .parent = &ipg_perclk, .id = 0, .enable_reg = MXC_CCM_CCGR2, .enable_shift = MXC_CCM_CCGRx_CG6_OFFSET, .enable = _clk_enable, .disable = _clk_disable, .secondary = &pwm1_clk[1], }, { __INIT_CLK_DEBUG(pwm1_clk_1) .id = 0, .parent = &ipg_clk, .enable_reg = MXC_CCM_CCGR2, .enable_shift = MXC_CCM_CCGRx_CG5_OFFSET, .enable = _clk_enable_inrun, /*Active only when ARM is running. */ .disable = _clk_disable, }, { __INIT_CLK_DEBUG(pwm1_clk_2) .id = 0, .parent = &ckil_clk, }, }; static struct clk pwm2_clk[] = { { __INIT_CLK_DEBUG(pwm2_clk_0) .parent = &ipg_perclk, .id = 1, .enable_reg = MXC_CCM_CCGR2, .enable_shift = MXC_CCM_CCGRx_CG8_OFFSET, .enable = _clk_enable, .disable = _clk_disable, .secondary = &pwm2_clk[1], }, { __INIT_CLK_DEBUG(pwm2_clk_1) .id = 1, .parent = &ipg_clk, .enable_reg = MXC_CCM_CCGR2, .enable_shift = MXC_CCM_CCGRx_CG7_OFFSET, .enable = _clk_enable_inrun, /*Active only when ARM is running. */ .disable = _clk_disable, }, { __INIT_CLK_DEBUG(pwm2_clk_2) .id = 1, .parent = &ckil_clk, }, }; static struct clk i2c_clk[] = { { __INIT_CLK_DEBUG(i2c_clk_0) .id = 0, .parent = &ipg_perclk, .enable_reg = MXC_CCM_CCGR1, .enable_shift = MXC_CCM_CCGRx_CG9_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(i2c_clk_1) .id = 1, .parent = &ipg_perclk, .enable_reg = MXC_CCM_CCGR1, .enable_shift = MXC_CCM_CCGRx_CG10_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(i2c_clk_2) .id = 2, .parent = &ipg_perclk, .enable_reg = MXC_CCM_CCGR1, .enable_shift = MXC_CCM_CCGRx_CG11_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, }; static unsigned long _clk_hsi2c_serial_get_rate(struct clk *clk) { u32 reg, prediv, podf; reg = __raw_readl(MXC_CCM_CSCDR3); prediv = ((reg & MXC_CCM_CSCDR3_HSI2C_CLK_PRED_MASK) >> MXC_CCM_CSCDR3_HSI2C_CLK_PRED_OFFSET) + 1; podf = ((reg & MXC_CCM_CSCDR3_HSI2C_CLK_PODF_MASK) >> MXC_CCM_CSCDR3_HSI2C_CLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / (prediv * podf); } static struct clk hsi2c_serial_clk = { __INIT_CLK_DEBUG(hsi2c_serial_clk) .id = 0, .parent = &pll3_sw_clk, .secondary = &spba_clk, .enable_reg = MXC_CCM_CCGR1, .enable_shift = MXC_CCM_CCGRx_CG11_OFFSET, .get_rate = _clk_hsi2c_serial_get_rate, .enable = _clk_enable, .disable = _clk_disable, }; static struct clk hsi2c_clk = { __INIT_CLK_DEBUG(hsi2c_clk) .id = 0, .parent = &ipg_clk, .enable_reg = MXC_CCM_CCGR1, .enable_shift = MXC_CCM_CCGRx_CG12_OFFSET, .enable = _clk_enable, .disable = _clk_disable, .flags = AHB_HIGH_SET_POINT | CPU_FREQ_TRIG_UPDATE, }; static unsigned long _clk_cspi_get_rate(struct clk *clk) { u32 reg, prediv, podf; reg = __raw_readl(MXC_CCM_CSCDR2); prediv = ((reg & MXC_CCM_CSCDR2_CSPI_CLK_PRED_MASK) >> MXC_CCM_CSCDR2_CSPI_CLK_PRED_OFFSET) + 1; if (prediv == 1) BUG(); podf = ((reg & MXC_CCM_CSCDR2_CSPI_CLK_PODF_MASK) >> MXC_CCM_CSCDR2_CSPI_CLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / (prediv * podf); } static int _clk_cspi_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; mux = _get_mux(parent, &pll1_sw_clk, &pll2_sw_clk, &pll3_sw_clk, &lp_apm_clk); reg = __raw_readl(MXC_CCM_CSCMR1) & ~MXC_CCM_CSCMR1_CSPI_CLK_SEL_MASK; reg |= mux << MXC_CCM_CSCMR1_CSPI_CLK_SEL_OFFSET; __raw_writel(reg, MXC_CCM_CSCMR1); return 0; } static struct clk cspi_main_clk = { __INIT_CLK_DEBUG(cspi_main_clk) .parent = &pll3_sw_clk, .get_rate = _clk_cspi_get_rate, .set_parent = _clk_cspi_set_parent, }; static struct clk cspi1_clk[] = { { __INIT_CLK_DEBUG(cspi1_clk_0) .id = 0, .parent = &cspi_main_clk, .secondary = &cspi1_clk[1], .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG10_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(cspi1_clk_1) .id = 0, .parent = &ipg_clk, .secondary = &spba_clk, .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG9_OFFSET, .enable = _clk_enable_inrun, /*Active only when ARM is running. */ .disable = _clk_disable, }, }; static struct clk cspi2_clk[] = { { __INIT_CLK_DEBUG(cspi2_clk_0) .id = 1, .parent = &cspi_main_clk, .secondary = &cspi2_clk[1], .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG12_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(cspi2_clk_1) .id = 1, .parent = &ipg_clk, .secondary = &aips_tz2_clk, .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG11_OFFSET, .enable = _clk_enable_inrun, /*Active only when ARM is running. */ .disable = _clk_disable, }, }; static struct clk cspi3_clk = { __INIT_CLK_DEBUG(cspi3_clk) .id = 2, .parent = &ipg_clk, .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG13_OFFSET, .enable = _clk_enable, .disable = _clk_disable, .secondary = &aips_tz2_clk, }; static unsigned long _clk_ieee_rtc_get_rate(struct clk *clk) { u32 reg, prediv, podf; reg = __raw_readl(MXC_CCM_CSCDR2); prediv = ((reg & MXC_CCM_CSCDR2_IEEE_CLK_PRED_MASK) >> MXC_CCM_CSCDR2_IEEE_CLK_PRED_OFFSET) + 1; if (prediv == 1) BUG(); podf = ((reg & MXC_CCM_CSCDR2_IEEE_CLK_PODF_MASK) >> MXC_CCM_CSCDR2_IEEE_CLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / (prediv * podf); } static int _clk_ieee_rtc_set_rate(struct clk *clk, unsigned long rate) { u32 reg, div, pre, post; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; if (div == 0) div++; if (((parent_rate / div) != rate) || div > 512) return -EINVAL; __calc_pre_post_dividers(div, &pre, &post); reg = __raw_readl(MXC_CCM_CSCDR2); reg &= ~(MXC_CCM_CSCDR2_IEEE_CLK_PRED_MASK | MXC_CCM_CSCDR2_IEEE_CLK_PODF_MASK); reg |= (post - 1) << MXC_CCM_CSCDR2_IEEE_CLK_PODF_OFFSET; reg |= (pre - 1) << MXC_CCM_CSCDR2_IEEE_CLK_PRED_OFFSET; __raw_writel(reg, MXC_CCM_CSCDR2); return 0; } static unsigned long _clk_ieee_rtc_round_rate(struct clk *clk, unsigned long rate) { u32 pre, post; u32 parent_rate = clk_get_rate(clk->parent); u32 div = parent_rate / rate; if (parent_rate % rate) div++; __calc_pre_post_dividers(div, &pre, &post); return parent_rate / (pre * post); } static int _clk_ieee_rtc_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; mux = _get_mux(parent, &pll3_sw_clk, &pll4_sw_clk, NULL, NULL); reg = __raw_readl(MXC_CCM_CSCMR2) & ~MXC_CCM_CSCMR2_IEEE_CLK_SEL_MASK; reg |= mux << MXC_CCM_CSCMR2_IEEE_CLK_SEL_OFFSET; __raw_writel(reg, MXC_CCM_CSCMR2); return 0; } static struct clk ieee_rtc_clk = { __INIT_CLK_DEBUG(ieee_rtc_clk) .id = 0, .parent = &pll3_sw_clk, .set_parent = _clk_ieee_rtc_set_parent, .set_rate = _clk_ieee_rtc_set_rate, .round_rate = _clk_ieee_rtc_round_rate, .get_rate = _clk_ieee_rtc_get_rate, }; static int _clk_ssi_lp_apm_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; mux = _get_mux(parent, &ckih_clk, &lp_apm_clk, &ckih2_clk, NULL); reg = __raw_readl(MXC_CCM_CSCMR1) & ~MXC_CCM_CSCMR1_SSI_APM_CLK_SEL_MASK; reg |= mux << MXC_CCM_CSCMR1_SSI_APM_CLK_SEL_OFFSET; __raw_writel(reg, MXC_CCM_CSCMR1); return 0; } static struct clk ssi_lp_apm_clk = { __INIT_CLK_DEBUG(ssi_lp_apm_clk) .parent = &ckih_clk, .set_parent = _clk_ssi_lp_apm_set_parent, }; static unsigned long _clk_ssi1_get_rate(struct clk *clk) { u32 reg, prediv, podf; reg = __raw_readl(MXC_CCM_CS1CDR); prediv = ((reg & MXC_CCM_CS1CDR_SSI1_CLK_PRED_MASK) >> MXC_CCM_CS1CDR_SSI1_CLK_PRED_OFFSET) + 1; if (prediv == 1) BUG(); podf = ((reg & MXC_CCM_CS1CDR_SSI1_CLK_PODF_MASK) >> MXC_CCM_CS1CDR_SSI1_CLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / (prediv * podf); } static int _clk_ssi1_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; mux = _get_mux(parent, &pll1_sw_clk, &pll2_sw_clk, &pll3_sw_clk, &ssi_lp_apm_clk); reg = __raw_readl(MXC_CCM_CSCMR1) & ~MXC_CCM_CSCMR1_SSI1_CLK_SEL_MASK; reg |= mux << MXC_CCM_CSCMR1_SSI1_CLK_SEL_OFFSET; __raw_writel(reg, MXC_CCM_CSCMR1); return 0; } static struct clk ssi1_clk[] = { { __INIT_CLK_DEBUG(ssi1_clk_0) .id = 0, .parent = &pll3_sw_clk, .set_parent = _clk_ssi1_set_parent, .secondary = &ssi1_clk[1], .get_rate = _clk_ssi1_get_rate, .enable_reg = MXC_CCM_CCGR3, .enable_shift = MXC_CCM_CCGRx_CG9_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(ssi1_clk_1) .id = 0, .parent = &ipg_clk, .secondary = &ssi1_clk[2], .enable_reg = MXC_CCM_CCGR3, .enable_shift = MXC_CCM_CCGRx_CG8_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(ssi1_clk_2) .id = 0, .parent = &aips_tz2_clk, #ifdef CONFIG_SND_MXC_SOC_IRAM .secondary = &emi_intr_clk[0], #else .secondary = &emi_fast_clk, #endif }, }; static unsigned long _clk_ssi2_get_rate(struct clk *clk) { u32 reg, prediv, podf; reg = __raw_readl(MXC_CCM_CS2CDR); prediv = ((reg & MXC_CCM_CS2CDR_SSI2_CLK_PRED_MASK) >> MXC_CCM_CS2CDR_SSI2_CLK_PRED_OFFSET) + 1; if (prediv == 1) BUG(); podf = ((reg & MXC_CCM_CS2CDR_SSI2_CLK_PODF_MASK) >> MXC_CCM_CS2CDR_SSI2_CLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / (prediv * podf); } static int _clk_ssi2_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; mux = _get_mux(parent, &pll1_sw_clk, &pll2_sw_clk, &pll3_sw_clk, &ssi_lp_apm_clk); reg = __raw_readl(MXC_CCM_CSCMR1) & ~MXC_CCM_CSCMR1_SSI2_CLK_SEL_MASK; reg |= mux << MXC_CCM_CSCMR1_SSI2_CLK_SEL_OFFSET; __raw_writel(reg, MXC_CCM_CSCMR1); return 0; } static struct clk ssi2_clk[] = { { __INIT_CLK_DEBUG(ssi2_clk_0) .id = 1, .parent = &pll3_sw_clk, .set_parent = _clk_ssi2_set_parent, .secondary = &ssi2_clk[1], .get_rate = _clk_ssi2_get_rate, .enable_reg = MXC_CCM_CCGR3, .enable_shift = MXC_CCM_CCGRx_CG11_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(ssi2_clk_1) .id = 1, .parent = &ipg_clk, .secondary = &ssi2_clk[2], .enable_reg = MXC_CCM_CCGR3, .enable_shift = MXC_CCM_CCGRx_CG10_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(ssi2_clk_2) .id = 1, .parent = &spba_clk, #ifdef CONFIG_SND_MXC_SOC_IRAM .secondary = &emi_intr_clk[0], #else .secondary = &emi_fast_clk, #endif }, }; static int _clk_ssi3_set_parent(struct clk *clk, struct clk *parent) { u32 reg; reg = __raw_readl(MXC_CCM_CSCMR1) & ~MXC_CCM_CSCMR1_SSI3_CLK_SEL; if (parent == &ssi1_clk[0]) reg &= ~MXC_CCM_CSCMR1_SSI3_CLK_SEL; else if (parent == &ssi2_clk[0]) reg |= MXC_CCM_CSCMR1_SSI3_CLK_SEL; else { printk(KERN_ERR"Set ssi3 clock parent failed!\n"); printk(KERN_ERR"ssi3 only support"); printk(KERN_ERR"ssi1 and ssi2 as parent clock\n"); return -1; } __raw_writel(reg, MXC_CCM_CSCMR1); return 0; } static struct clk ssi3_clk[] = { { __INIT_CLK_DEBUG(ssi3_clk_0) .id = 2, .parent = &ssi1_clk[0], .set_parent = _clk_ssi3_set_parent, .secondary = &ssi3_clk[1], .enable_reg = MXC_CCM_CCGR3, .enable_shift = MXC_CCM_CCGRx_CG13_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(ssi3_clk_1) .id = 2, .parent = &ipg_clk, .secondary = &ssi3_clk[2], .enable_reg = MXC_CCM_CCGR3, .enable_shift = MXC_CCM_CCGRx_CG12_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(ssi3_clk_2) .id = 2, .parent = &aips_tz2_clk, #ifdef CONFIG_SND_MXC_SOC_IRAM .secondary = &emi_intr_clk, #else .secondary = &emi_fast_clk, #endif }, }; static unsigned long _clk_ssi_ext1_get_rate(struct clk *clk) { u32 reg, prediv, podf; u32 div = 1; reg = __raw_readl(MXC_CCM_CSCMR1); if ((reg & MXC_CCM_CSCMR1_SSI_EXT1_COM_CLK_SEL) == 0) { reg = __raw_readl(MXC_CCM_CS1CDR); prediv = ((reg & MXC_CCM_CS1CDR_SSI_EXT1_CLK_PRED_MASK) >> MXC_CCM_CS1CDR_SSI_EXT1_CLK_PRED_OFFSET) + 1; podf = ((reg & MXC_CCM_CS1CDR_SSI_EXT1_CLK_PODF_MASK) >> MXC_CCM_CS1CDR_SSI_EXT1_CLK_PODF_OFFSET) + 1; div = prediv * podf; } return clk_get_rate(clk->parent) / div; } static int _clk_ssi_ext1_set_rate(struct clk *clk, unsigned long rate) { u32 reg, div, pre, post; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; if (div == 0) div++; if (((parent_rate / div) != rate) || div > 512) return -EINVAL; __calc_pre_post_dividers(div, &pre, &post); reg = __raw_readl(MXC_CCM_CS1CDR); reg &= ~(MXC_CCM_CS1CDR_SSI_EXT1_CLK_PRED_MASK | MXC_CCM_CS1CDR_SSI_EXT1_CLK_PODF_MASK); reg |= (post - 1) << MXC_CCM_CS1CDR_SSI_EXT1_CLK_PODF_OFFSET; reg |= (pre - 1) << MXC_CCM_CS1CDR_SSI_EXT1_CLK_PRED_OFFSET; __raw_writel(reg, MXC_CCM_CS1CDR); return 0; } static int _clk_ssi_ext1_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; reg = __raw_readl(MXC_CCM_CSCMR1); if (parent == &ssi1_clk[0]) { reg |= MXC_CCM_CSCMR1_SSI_EXT1_COM_CLK_SEL; } else { reg &= ~MXC_CCM_CSCMR1_SSI_EXT1_COM_CLK_SEL; mux = _get_mux(parent, &pll1_sw_clk, &pll2_sw_clk, &pll3_sw_clk, &ssi_lp_apm_clk); reg = (reg & ~MXC_CCM_CSCMR1_SSI_EXT1_CLK_SEL_MASK) | (mux << MXC_CCM_CSCMR1_SSI_EXT1_CLK_SEL_OFFSET); } __raw_writel(reg, MXC_CCM_CSCMR1); return 0; } static unsigned long _clk_ssi_ext1_round_rate(struct clk *clk, unsigned long rate) { u32 pre, post; u32 parent_rate = clk_get_rate(clk->parent); u32 div = parent_rate / rate; if (parent_rate % rate) div++; __calc_pre_post_dividers(div, &pre, &post); return parent_rate / (pre * post); } static struct clk ssi_ext1_clk = { __INIT_CLK_DEBUG(ssi_ext1_clk) .parent = &pll3_sw_clk, .set_parent = _clk_ssi_ext1_set_parent, .set_rate = _clk_ssi_ext1_set_rate, .round_rate = _clk_ssi_ext1_round_rate, .get_rate = _clk_ssi_ext1_get_rate, .enable_reg = MXC_CCM_CCGR3, .enable_shift = MXC_CCM_CCGRx_CG14_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }; static unsigned long _clk_ssi_ext2_get_rate(struct clk *clk) { u32 reg, prediv, podf; u32 div = 1; reg = __raw_readl(MXC_CCM_CSCMR1); if ((reg & MXC_CCM_CSCMR1_SSI_EXT2_COM_CLK_SEL) == 0) { reg = __raw_readl(MXC_CCM_CS2CDR); prediv = ((reg & MXC_CCM_CS2CDR_SSI_EXT2_CLK_PRED_MASK) >> MXC_CCM_CS2CDR_SSI_EXT2_CLK_PRED_OFFSET) + 1; if (prediv == 1) BUG(); podf = ((reg & MXC_CCM_CS2CDR_SSI_EXT2_CLK_PODF_MASK) >> MXC_CCM_CS2CDR_SSI_EXT2_CLK_PODF_OFFSET) + 1; div = prediv * podf; } return clk_get_rate(clk->parent) / div; } static int _clk_ssi_ext2_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; reg = __raw_readl(MXC_CCM_CSCMR1); if (parent == &ssi2_clk[0]) { reg |= MXC_CCM_CSCMR1_SSI_EXT2_COM_CLK_SEL; } else { reg &= ~MXC_CCM_CSCMR1_SSI_EXT2_COM_CLK_SEL; mux = _get_mux(parent, &pll1_sw_clk, &pll2_sw_clk, &pll3_sw_clk, &ssi_lp_apm_clk); reg = (reg & ~MXC_CCM_CSCMR1_SSI_EXT2_CLK_SEL_MASK) | (mux << MXC_CCM_CSCMR1_SSI_EXT2_CLK_SEL_OFFSET); } __raw_writel(reg, MXC_CCM_CSCMR1); return 0; } static struct clk ssi_ext2_clk = { __INIT_CLK_DEBUG(ssi_ext2_clk) .parent = &pll3_sw_clk, .set_parent = _clk_ssi_ext2_set_parent, .get_rate = _clk_ssi_ext2_get_rate, .enable_reg = MXC_CCM_CCGR3, .enable_shift = MXC_CCM_CCGRx_CG15_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }; static int _clk_esai_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; reg = __raw_readl(MXC_CCM_CSCMR2); if (parent == &pll1_sw_clk || parent == &pll2_sw_clk || parent == &pll3_sw_clk) { mux = _get_mux(parent, &pll1_sw_clk, &pll2_sw_clk, &pll3_sw_clk, NULL); reg &= ~MXC_CCM_CSCMR2_ESAI_PRE_SEL_MASK; reg |= mux << MXC_CCM_CSCMR2_ESAI_PRE_SEL_OFFSET; reg &= ~MXC_CCM_CSCMR2_ESAI_POST_SEL_MASK; reg |= 0 << MXC_CCM_CSCMR2_ESAI_POST_SEL_OFFSET; /* divider setting */ } else { mux = _get_mux(parent, &ssi1_clk[0], &ssi2_clk[0], &ckih_clk, &ckih2_clk); reg &= ~MXC_CCM_CSCMR2_ESAI_POST_SEL_MASK; reg |= (mux + 1) << MXC_CCM_CSCMR2_ESAI_POST_SEL_OFFSET; /* divider setting */ } __raw_writel(reg, MXC_CCM_CSCMR2); /* set podf = 0 */ reg = __raw_readl(MXC_CCM_CS1CDR); reg &= ~MXC_CCM_CS1CDR_ESAI_CLK_PODF_MASK; __raw_writel(reg, MXC_CCM_CS1CDR); return 0; } static unsigned long _clk_esai_get_rate(struct clk *clk) { u32 reg, pred, podf; reg = __raw_readl(MXC_CCM_CS1CDR); if (clk->parent == &pll1_sw_clk || clk->parent == &pll2_sw_clk || clk->parent == &pll3_sw_clk) { pred = ((reg & MXC_CCM_CS1CDR_ESAI_CLK_PRED_MASK) >> MXC_CCM_CS1CDR_ESAI_CLK_PRED_OFFSET) + 1; podf = ((reg & MXC_CCM_CS1CDR_ESAI_CLK_PODF_MASK) >> MXC_CCM_CS1CDR_ESAI_CLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / (pred * podf); } else { podf = ((reg & MXC_CCM_CS1CDR_ESAI_CLK_PODF_MASK) >> MXC_CCM_CS1CDR_ESAI_CLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / podf; } } static struct clk esai_clk[] = { { __INIT_CLK_DEBUG(esai_clk_0) .id = 0, .parent = &pll3_sw_clk, .set_parent = _clk_esai_set_parent, .get_rate = _clk_esai_get_rate, .secondary = &esai_clk[1], .enable_reg = MXC_CCM_CCGR6, .enable_shift = MXC_CCM_CCGRx_CG9_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(esai_clk_1) .id = 0, .parent = &ipg_clk, .enable_reg = MXC_CCM_CCGR6, .enable_shift = MXC_CCM_CCGRx_CG8_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, }; static struct clk iim_clk = { __INIT_CLK_DEBUG(iim_clk) .parent = &ipg_clk, .secondary = &aips_tz2_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR0, .enable_shift = MXC_CCM_CCGRx_CG15_OFFSET, .disable = _clk_disable, }; static struct clk tmax1_clk = { __INIT_CLK_DEBUG(tmax1_clk) .id = 0, .parent = &ahb_clk, .secondary = &ahb_max_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR1, .enable_shift = MXC_CCM_CCGRx_CG0_OFFSET, .disable = _clk_disable, }; static struct clk tmax2_clk = { __INIT_CLK_DEBUG(tmax2_clk) .id = 0, .parent = &ahb_clk, .secondary = &ahb_max_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR1, .enable_shift = MXC_CCM_CCGRx_CG1_OFFSET, .disable = _clk_disable, }; static struct clk tmax3_clk = { __INIT_CLK_DEBUG(tmax3_clk) .id = 0, .parent = &ahb_clk, .secondary = &ahb_max_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR1, .enable_shift = MXC_CCM_CCGRx_CG2_OFFSET, .disable = _clk_disable, }; static unsigned long _clk_usboh3_get_rate(struct clk *clk) { u32 reg, prediv, podf; reg = __raw_readl(MXC_CCM_CSCDR1); prediv = ((reg & MXC_CCM_CSCDR1_USBOH3_CLK_PRED_MASK) >> MXC_CCM_CSCDR1_USBOH3_CLK_PRED_OFFSET) + 1; if (prediv == 1) BUG(); podf = ((reg & MXC_CCM_CSCDR1_USBOH3_CLK_PODF_MASK) >> MXC_CCM_CSCDR1_USBOH3_CLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / (prediv * podf); } static int _clk_usboh3_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; mux = _get_mux(parent, &pll1_sw_clk, &pll2_sw_clk, &pll3_sw_clk, &lp_apm_clk); reg = __raw_readl(MXC_CCM_CSCMR1) & ~MXC_CCM_CSCMR1_USBOH3_CLK_SEL_MASK; reg |= mux << MXC_CCM_CSCMR1_USBOH3_CLK_SEL_OFFSET; __raw_writel(reg, MXC_CCM_CSCMR1); return 0; } static struct clk usboh3_clk[] = { { __INIT_CLK_DEBUG(usboh3_clk_0) .parent = &pll3_sw_clk, .set_parent = _clk_usboh3_set_parent, .get_rate = _clk_usboh3_get_rate, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR2, .enable_shift = MXC_CCM_CCGRx_CG14_OFFSET, .disable = _clk_disable, .secondary = &usboh3_clk[1], .flags = AHB_MED_SET_POINT | CPU_FREQ_TRIG_UPDATE, }, { __INIT_CLK_DEBUG(usboh3_clk_1) .parent = &tmax2_clk, #if defined(CONFIG_USB_STATIC_IRAM) \ || defined(CONFIG_USB_STATIC_IRAM_PPH) .secondary = &emi_intr_clk[0], #else .secondary = &emi_fast_clk, #endif }, }; static struct clk usb_ahb_clk = { __INIT_CLK_DEBUG(usb_ahb_clk) .parent = &ipg_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR2, .enable_shift = MXC_CCM_CCGRx_CG13_OFFSET, .disable = _clk_disable, }; static unsigned long _clk_usb_phy_get_rate(struct clk *clk) { u32 reg, prediv, podf; u32 div = 1; if (clk->parent == &pll3_sw_clk) { reg = __raw_readl(MXC_CCM_CDCDR); prediv = ((reg & MXC_CCM_CDCDR_USB_PHY_PRED_MASK) >> MXC_CCM_CDCDR_USB_PHY_PRED_OFFSET) + 1; podf = ((reg & MXC_CCM_CDCDR_USB_PHY_PODF_MASK) >> MXC_CCM_CDCDR_USB_PHY_PODF_OFFSET) + 1; div = (prediv * podf); } return clk_get_rate(clk->parent) / div; } static int _clk_usb_phy_set_parent(struct clk *clk, struct clk *parent) { u32 reg; reg = __raw_readl(MXC_CCM_CSCMR1); if (parent == &osc_clk) reg &= ~MXC_CCM_CSCMR1_USB_PHY_CLK_SEL; else if (parent == &pll3_sw_clk) reg |= MXC_CCM_CSCMR1_USB_PHY_CLK_SEL; else BUG(); __raw_writel(reg, MXC_CCM_CSCMR1); return 0; } static struct clk usb_phy_clk[] = { { __INIT_CLK_DEBUG(usb_phy_clk_0) .id = 0, .parent = &pll3_sw_clk, .secondary = &tmax3_clk, .set_parent = _clk_usb_phy_set_parent, .get_rate = _clk_usb_phy_get_rate, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR2, .enable_shift = MXC_CCM_CCGRx_CG0_OFFSET, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(usb_phy_clk_1) .id = 1, .parent = &pll3_sw_clk, .secondary = &tmax3_clk, .set_parent = _clk_usb_phy_set_parent, .get_rate = _clk_usb_phy_get_rate, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG6_OFFSET, .disable = _clk_disable, } }; static struct clk esdhc_dep_clks = { __INIT_CLK_DEBUG(esdhc_dep_clks) .parent = &spba_clk, .secondary = &emi_fast_clk, }; static unsigned long _clk_esdhc1_get_rate(struct clk *clk) { u32 reg, prediv, podf; reg = __raw_readl(MXC_CCM_CSCDR1); prediv = ((reg & MXC_CCM_CSCDR1_ESDHC1_MSHC2_CLK_PRED_MASK) >> MXC_CCM_CSCDR1_ESDHC1_MSHC2_CLK_PRED_OFFSET) + 1; podf = ((reg & MXC_CCM_CSCDR1_ESDHC1_MSHC2_CLK_PODF_MASK) >> MXC_CCM_CSCDR1_ESDHC1_MSHC2_CLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / (prediv * podf); } static int _clk_esdhc1_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; mux = _get_mux(parent, &pll1_sw_clk, &pll2_sw_clk, &pll3_sw_clk, &lp_apm_clk); reg = __raw_readl(MXC_CCM_CSCMR1) & ~MXC_CCM_CSCMR1_ESDHC1_MSHC2_CLK_SEL_MASK; reg |= mux << MXC_CCM_CSCMR1_ESDHC1_MSHC2_CLK_SEL_OFFSET; __raw_writel(reg, MXC_CCM_CSCMR1); return 0; } static int _clk_sdhc1_set_rate(struct clk *clk, unsigned long rate) { u32 reg; u32 div; u32 pre, post; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; if ((parent_rate / div) != rate) return -EINVAL; __calc_pre_post_dividers(div, &pre, &post); /* Set sdhc1 clock divider */ reg = __raw_readl(MXC_CCM_CSCDR1) & ~(MXC_CCM_CSCDR1_ESDHC1_MSHC2_CLK_PRED_MASK | MXC_CCM_CSCDR1_ESDHC1_MSHC2_CLK_PODF_MASK); reg |= (post - 1) << MXC_CCM_CSCDR1_ESDHC1_MSHC2_CLK_PODF_OFFSET; reg |= (pre - 1) << MXC_CCM_CSCDR1_ESDHC1_MSHC2_CLK_PRED_OFFSET; __raw_writel(reg, MXC_CCM_CSCDR1); return 0; } static struct clk esdhc1_clk[] = { { __INIT_CLK_DEBUG(esdhc1_clk_0) .id = 0, .parent = &pll2_sw_clk, .set_parent = _clk_esdhc1_set_parent, .get_rate = _clk_esdhc1_get_rate, .set_rate = _clk_sdhc1_set_rate, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR3, .enable_shift = MXC_CCM_CCGRx_CG1_OFFSET, .disable = _clk_disable, .secondary = &esdhc1_clk[1], }, { __INIT_CLK_DEBUG(esdhc1_clk_1) .id = 0, .parent = &ipg_clk, .secondary = &esdhc1_clk[2], .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR3, .enable_shift = MXC_CCM_CCGRx_CG0_OFFSET, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(esdhc1_clk_2) .id = 0, .parent = &tmax3_clk, .secondary = &esdhc_dep_clks, }, }; static unsigned long _clk_esdhc2_get_rate(struct clk *clk) { u32 reg, prediv, podf; if (cpu_is_mx51()) { reg = __raw_readl(MXC_CCM_CSCDR1); prediv = ((reg & MXC_CCM_CSCDR1_ESDHC2_MSHC2_CLK_PRED_MASK) >> MXC_CCM_CSCDR1_ESDHC2_MSHC2_CLK_PRED_OFFSET) + 1; podf = ((reg & MXC_CCM_CSCDR1_ESDHC2_MSHC2_CLK_PODF_MASK) >> MXC_CCM_CSCDR1_ESDHC2_MSHC2_CLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / (prediv * podf); } return clk_get_rate(clk->parent); } static int _clk_esdhc2_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; if (cpu_is_mx51()) { mux = _get_mux(parent, &pll1_sw_clk, &pll2_sw_clk, &pll3_sw_clk, &lp_apm_clk); reg = __raw_readl(MXC_CCM_CSCMR1) & ~MXC_CCM_CSCMR1_ESDHC3_MSHC2_CLK_SEL_MASK; reg |= mux << MXC_CCM_CSCMR1_ESDHC3_MSHC2_CLK_SEL_OFFSET; } else { /* MX53 */ reg = __raw_readl(MXC_CCM_CSCMR1); if (parent == &esdhc1_clk[0]) reg &= ~MXC_CCM_CSCMR1_ESDHC2_CLK_SEL; else if (parent == &esdhc3_clk[0]) reg |= MXC_CCM_CSCMR1_ESDHC2_CLK_SEL; else BUG(); } __raw_writel(reg, MXC_CCM_CSCMR1); return 0; } static int _clk_esdhc2_set_rate(struct clk *clk, unsigned long rate) { u32 reg; u32 div; u32 pre, post; u32 parent_rate = clk_get_rate(clk->parent); if (cpu_is_mx51()) { div = parent_rate / rate; if ((parent_rate / div) != rate) return -EINVAL; __calc_pre_post_dividers(div, &pre, &post); /* Set sdhc1 clock divider */ reg = __raw_readl(MXC_CCM_CSCDR1) & ~(MXC_CCM_CSCDR1_ESDHC2_MSHC2_CLK_PRED_MASK | MXC_CCM_CSCDR1_ESDHC2_MSHC2_CLK_PODF_MASK); reg |= (post - 1) << MXC_CCM_CSCDR1_ESDHC2_MSHC2_CLK_PODF_OFFSET; reg |= (pre - 1) << MXC_CCM_CSCDR1_ESDHC2_MSHC2_CLK_PRED_OFFSET; __raw_writel(reg, MXC_CCM_CSCDR1); } return 0; } static struct clk esdhc2_clk[] = { { __INIT_CLK_DEBUG(esdhc2_clk_0) .id = 1, .parent = &pll3_sw_clk, .set_parent = _clk_esdhc2_set_parent, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR3, .enable_shift = MXC_CCM_CCGRx_CG3_OFFSET, .disable = _clk_disable, .secondary = &esdhc2_clk[1], }, { __INIT_CLK_DEBUG(esdhc2_clk_1) .id = 1, .parent = &ipg_clk, .secondary = &esdhc2_clk[2], .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR3, .enable_shift = MXC_CCM_CCGRx_CG2_OFFSET, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(esdhc2_clk_2) .id = 0, .parent = &tmax2_clk, .secondary = &esdhc_dep_clks, }, }; static int _clk_esdhc3_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; if (cpu_is_mx51()) { reg = __raw_readl(MXC_CCM_CSCMR1); if (parent == &esdhc1_clk[0]) reg &= ~MXC_CCM_CSCMR1_ESDHC3_CLK_SEL_MX51; else if (parent == &esdhc2_clk[0]) reg |= MXC_CCM_CSCMR1_ESDHC3_CLK_SEL_MX51; else BUG(); } else { /* MX53 */ mux = _get_mux(parent, &pll1_sw_clk, &pll2_sw_clk, &pll3_sw_clk, &lp_apm_clk); reg = __raw_readl(MXC_CCM_CSCMR1) & ~MXC_CCM_CSCMR1_ESDHC3_MSHC2_CLK_SEL_MASK; reg |= mux << MXC_CCM_CSCMR1_ESDHC3_MSHC2_CLK_SEL_OFFSET; } __raw_writel(reg, MXC_CCM_CSCMR1); return 0; } static unsigned long _clk_esdhc3_get_rate(struct clk *clk) { u32 reg, prediv, podf; reg = __raw_readl(MXC_CCM_CSCDR1); prediv = ((reg & MXC_CCM_CSCDR1_ESDHC3_MSHC2_CLK_PRED_MASK) >> MXC_CCM_CSCDR1_ESDHC3_MSHC2_CLK_PRED_OFFSET) + 1; podf = ((reg & MXC_CCM_CSCDR1_ESDHC3_MSHC2_CLK_PODF_MASK) >> MXC_CCM_CSCDR1_ESDHC3_MSHC2_CLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / (prediv * podf); } static int _clk_sdhc3_set_rate(struct clk *clk, unsigned long rate) { u32 reg; u32 div; u32 pre, post; u32 parent_rate = clk_get_rate(clk->parent); if (cpu_is_mx53()) { div = parent_rate / rate; if ((parent_rate / div) != rate) return -EINVAL; __calc_pre_post_dividers(div, &pre, &post); /* Set sdhc1 clock divider */ reg = __raw_readl(MXC_CCM_CSCDR1) & ~(MXC_CCM_CSCDR1_ESDHC3_MSHC2_CLK_PRED_MASK | MXC_CCM_CSCDR1_ESDHC3_MSHC2_CLK_PODF_MASK); reg |= (post - 1) << MXC_CCM_CSCDR1_ESDHC3_MSHC2_CLK_PODF_OFFSET; reg |= (pre - 1) << MXC_CCM_CSCDR1_ESDHC3_MSHC2_CLK_PRED_OFFSET; __raw_writel(reg, MXC_CCM_CSCDR1); } return 0; } static struct clk esdhc3_clk[] = { { __INIT_CLK_DEBUG(esdhc3_clk_0) .id = 2, .parent = &esdhc1_clk[0], .set_parent = _clk_esdhc3_set_parent, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR3, .enable_shift = MXC_CCM_CCGRx_CG5_OFFSET, .disable = _clk_disable, .secondary = &esdhc3_clk[1], }, { __INIT_CLK_DEBUG(esdhc3_clk_1) .id = 2, .parent = &ipg_clk, .secondary = &esdhc3_clk[2], .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR3, .enable_shift = MXC_CCM_CCGRx_CG4_OFFSET, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(esdhc3_clk_2) .id = 0, .parent = &ahb_max_clk, .secondary = &esdhc_dep_clks, }, }; static int _clk_esdhc4_set_parent(struct clk *clk, struct clk *parent) { u32 reg; if (cpu_is_mx51()) { reg = __raw_readl(MXC_CCM_CSCMR1); if (parent == &esdhc1_clk[0]) reg &= ~MXC_CCM_CSCMR1_ESDHC4_CLK_SEL; else if (parent == &esdhc2_clk[0]) reg |= MXC_CCM_CSCMR1_ESDHC4_CLK_SEL; else BUG(); } else {/*MX53 */ reg = __raw_readl(MXC_CCM_CSCMR1); if (parent == &esdhc1_clk[0]) reg &= ~MXC_CCM_CSCMR1_ESDHC4_CLK_SEL; else if (parent == &esdhc3_clk[0]) reg |= MXC_CCM_CSCMR1_ESDHC4_CLK_SEL; else BUG(); } __raw_writel(reg, MXC_CCM_CSCMR1); return 0; } static struct clk esdhc4_clk[] = { { __INIT_CLK_DEBUG(esdhc4_clk_0) .id = 3, .parent = &esdhc1_clk[0], .set_parent = _clk_esdhc4_set_parent, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR3, .enable_shift = MXC_CCM_CCGRx_CG7_OFFSET, .disable = _clk_disable, .secondary = &esdhc4_clk[1], }, { __INIT_CLK_DEBUG(esdhc4_clk_1) .id = 3, .parent = &ipg_clk, .secondary = &esdhc4_clk[2], .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR3, .enable_shift = MXC_CCM_CCGRx_CG6_OFFSET, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(esdhc4_clk_2) .id = 0, .parent = &tmax3_clk, .secondary = &esdhc_dep_clks, }, }; static struct clk sata_clk = { __INIT_CLK_DEBUG(sata_clk) .parent = &ipg_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG1_OFFSET, .disable = _clk_disable, }; static struct clk ieee_1588_clk = { __INIT_CLK_DEBUG(ieee_1588_clk) .parent = &ipg_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR7, .enable_shift = MXC_CCM_CCGRx_CG3_OFFSET, .disable = _clk_disable, }; static struct clk mlb_clk[] = { { __INIT_CLK_DEBUG(mlb_clk_0) .parent = &ipg_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR7, .enable_shift = MXC_CCM_CCGRx_CG2_OFFSET, .disable = _clk_disable, .secondary = &mlb_clk[1], }, { __INIT_CLK_DEBUG(mlb_clk_1) .parent = &emi_fast_clk, .secondary = &emi_intr_clk[1], }, }; static int _can_root_clk_set(struct clk *clk, struct clk *parent) { u32 reg, mux; mux = _get_mux(parent, &ipg_clk, &ckih_clk, &ckih2_clk, &lp_apm_clk); reg = __raw_readl(MXC_CCM_CSCMR2) & ~MXC_CCM_CSCMR2_CAN_CLK_SEL_MASK; reg |= mux << MXC_CCM_CSCMR2_CAN_CLK_SEL_OFFSET; __raw_writel(reg, MXC_CCM_CSCMR2); return 0; } static struct clk can1_clk[] = { { __INIT_CLK_DEBUG(can1_clk_0) .id = 0, .parent = &lp_apm_clk, .set_parent = _can_root_clk_set, .enable = _clk_enable, .secondary = &can1_clk[1], .enable_reg = MXC_CCM_CCGR6, .enable_shift = MXC_CCM_CCGRx_CG11_OFFSET, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(can1_clk_1) .id = 0, .parent = &ipg_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR6, .enable_shift = MXC_CCM_CCGRx_CG10_OFFSET, .disable = _clk_disable, }, }; static struct clk can2_clk[] = { { __INIT_CLK_DEBUG(can2_clk_0) .id = 1, .parent = &lp_apm_clk, .set_parent = _can_root_clk_set, .enable = _clk_enable, .secondary = &can2_clk[1], .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG4_OFFSET, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(can2_clk_1) .id = 1, .parent = &ipg_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG3_OFFSET, .disable = _clk_disable, }, }; static int _clk_sim_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; mux = _get_mux(parent, &pll1_sw_clk, &pll2_sw_clk, &pll3_sw_clk, NULL); reg = __raw_readl(MXC_CCM_CSCMR2) & ~MXC_CCM_CSCMR2_SIM_CLK_SEL_MASK; reg |= mux << MXC_CCM_CSCMR2_SIM_CLK_SEL_OFFSET; __raw_writel(reg, MXC_CCM_CSCMR2); return 0; } static unsigned long _clk_sim_get_rate(struct clk *clk) { u32 reg, pred, podf; reg = __raw_readl(MXC_CCM_CSCDR2); pred = ((reg & MXC_CCM_CSCDR2_SIM_CLK_PRED_MASK) >> MXC_CCM_CSCDR2_SIM_CLK_PRED_OFFSET) + 1; podf = ((reg & MXC_CCM_CSCDR2_SIM_CLK_PODF_MASK) >> MXC_CCM_CSCDR2_SIM_CLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / (pred * podf); } static unsigned long _clk_sim_round_rate(struct clk *clk, unsigned long rate) { u32 pre, post; u32 parent_rate = clk_get_rate(clk->parent); u32 div = parent_rate / rate; if (parent_rate % rate) div++; __calc_pre_post_dividers(div, &pre, &post); return parent_rate / (pre * post); } static int _clk_sim_set_rate(struct clk *clk, unsigned long rate) { u32 reg; u32 div; u32 pre, post; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; if ((parent_rate / div) != rate) return -EINVAL; __calc_pre_post_dividers(div, &pre, &post); /* Set SIM clock divider */ reg = __raw_readl(MXC_CCM_CSCDR2) & ~(MXC_CCM_CSCDR2_SIM_CLK_PRED_MASK | MXC_CCM_CSCDR2_SIM_CLK_PODF_MASK); reg |= (post - 1) << MXC_CCM_CSCDR2_SIM_CLK_PODF_OFFSET; reg |= (pre - 1) << MXC_CCM_CSCDR2_SIM_CLK_PRED_OFFSET; __raw_writel(reg, MXC_CCM_CSCDR2); return 0; } static struct clk sim_clk[] = { { __INIT_CLK_DEBUG(sim_clk_0) .parent = &pll3_sw_clk, .set_parent = _clk_sim_set_parent, .secondary = &sim_clk[1], .get_rate = _clk_sim_get_rate, .round_rate = _clk_sim_round_rate, .set_rate = _clk_sim_set_rate, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG2_OFFSET, .disable = _clk_disable, .flags = AHB_HIGH_SET_POINT | CPU_FREQ_TRIG_UPDATE, }, { __INIT_CLK_DEBUG(sim_clk_1) .parent = &ipg_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG1_OFFSET, .disable = _clk_disable, }, }; static unsigned long _clk_nfc_get_rate(struct clk *clk) { u32 reg, div; reg = __raw_readl(MXC_CCM_CBCDR); div = ((reg & MXC_CCM_CBCDR_NFC_PODF_MASK) >> MXC_CCM_CBCDR_NFC_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / div; } static unsigned long _clk_nfc_round_rate(struct clk *clk, unsigned long rate) { u32 div; u32 parent_rate = clk_get_rate(clk->parent); /* * Compute the divider we'd have to use to reach the target rate. */ div = parent_rate / rate; if (div == 0) div++; if (parent_rate / div > MAX_NFC_CLK) div++; /* * The divider for this clock is 3 bits wide, so we can't possibly * divide the parent by more than eight. */ if (div > 8) return -EINVAL; return parent_rate / div; } static int _clk_nfc_set_rate(struct clk *clk, unsigned long rate) { u32 reg, div; struct timespec nstimeofday; struct timespec curtime; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; if (div == 0) div++; if (((parent_rate / div) != rate) || (div > 8)) return -EINVAL; if (emi_fast_clk.usecount == 0) emi_fast_clk.enable(&emi_fast_clk); if (emi_slow_clk.usecount == 0) emi_slow_clk.enable(&emi_slow_clk); reg = __raw_readl(MXC_CCM_CBCDR); reg &= ~MXC_CCM_CBCDR_NFC_PODF_MASK; reg |= (div - 1) << MXC_CCM_CBCDR_NFC_PODF_OFFSET; __raw_writel(reg, MXC_CCM_CBCDR); getnstimeofday(&nstimeofday); while (__raw_readl(MXC_CCM_CDHIPR) & MXC_CCM_CDHIPR_NFC_IPG_INT_MEM_PODF_BUSY){ getnstimeofday(&curtime); if ((curtime.tv_nsec - nstimeofday.tv_nsec) > SPIN_DELAY) panic("_clk_nfc_set_rate failed\n"); } if (emi_fast_clk.usecount == 0) emi_fast_clk.disable(&emi_fast_clk); if (emi_slow_clk.usecount == 0) emi_slow_clk.disable(&emi_slow_clk); return 0; } static struct clk emi_enfc_clk = { __INIT_CLK_DEBUG(emi_enfc_clk) .parent = &emi_slow_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGRx_CG10_OFFSET, .disable = _clk_disable_inwait, .get_rate = _clk_nfc_get_rate, .round_rate = _clk_nfc_round_rate, .set_rate = _clk_nfc_set_rate, }; static int _clk_spdif_xtal_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; mux = _get_mux(parent, &osc_clk, &ckih_clk, &ckih2_clk, NULL); reg = __raw_readl(MXC_CCM_CSCMR1) & ~MXC_CCM_CSCMR1_SPDIF_CLK_SEL_MASK; reg |= mux << MXC_CCM_CSCMR1_SPDIF_CLK_SEL_OFFSET; __raw_writel(reg, MXC_CCM_CSCMR1); return 0; } static struct clk spdif_xtal_clk = { __INIT_CLK_DEBUG(spdif_xtal_clk) .parent = &osc_clk, .set_parent = _clk_spdif_xtal_set_parent, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGRx_CG15_OFFSET, .disable = _clk_disable, }; static int _clk_spdif0_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; reg = __raw_readl(MXC_CCM_CSCMR2); reg |= MXC_CCM_CSCMR2_SPDIF0_COM; if (parent != &ssi1_clk[0]) { reg &= ~MXC_CCM_CSCMR2_SPDIF0_COM; mux = _get_mux(parent, &pll1_sw_clk, &pll2_sw_clk, &pll3_sw_clk, &spdif_xtal_clk); reg = (reg & ~MXC_CCM_CSCMR2_SPDIF0_CLK_SEL_MASK) | (mux << MXC_CCM_CSCMR2_SPDIF0_CLK_SEL_OFFSET); } __raw_writel(reg, MXC_CCM_CSCMR2); return 0; } static unsigned long _clk_spdif0_get_rate(struct clk *clk) { u32 reg, pred, podf; u32 div = 1; if (clk->parent != &ssi1_clk[0]) { reg = __raw_readl(MXC_CCM_CDCDR); pred = ((reg & MXC_CCM_CDCDR_SPDIF0_CLK_PRED_MASK) >> MXC_CCM_CDCDR_SPDIF0_CLK_PRED_OFFSET) + 1; podf = ((reg & MXC_CCM_CDCDR_SPDIF0_CLK_PODF_MASK) >> MXC_CCM_CDCDR_SPDIF0_CLK_PODF_OFFSET) + 1; div = (pred * podf); } return clk_get_rate(clk->parent) / div; } static struct clk spdif0_clk[] = { { __INIT_CLK_DEBUG(spdif0_clk_0) .id = 0, .parent = &pll3_sw_clk, .set_parent = _clk_spdif0_set_parent, .get_rate = _clk_spdif0_get_rate, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGRx_CG13_OFFSET, .disable = _clk_disable, .flags = AHB_HIGH_SET_POINT | CPU_FREQ_TRIG_UPDATE, }, { __INIT_CLK_DEBUG(spdif0_clk_1) .id = 0, .parent = &ipg_clk, .secondary = &spba_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGRx_CG15_OFFSET, .disable = _clk_disable, }, }; static int _clk_spdif1_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; reg = __raw_readl(MXC_CCM_CSCMR2); reg |= MXC_CCM_CSCMR2_SPDIF1_COM; if (parent != &ssi2_clk[0]) { reg &= ~MXC_CCM_CSCMR2_SPDIF1_COM; mux = _get_mux(parent, &pll1_sw_clk, &pll2_sw_clk, &pll3_sw_clk, &spdif_xtal_clk); reg = (reg & ~MXC_CCM_CSCMR2_SPDIF1_CLK_SEL_MASK) | (mux << MXC_CCM_CSCMR2_SPDIF1_CLK_SEL_OFFSET); } __raw_writel(reg, MXC_CCM_CSCMR2); return 0; } static unsigned long _clk_spdif1_get_rate(struct clk *clk) { u32 reg, pred, podf; u32 div = 1; if (clk->parent != &ssi2_clk[0]) { reg = __raw_readl(MXC_CCM_CDCDR); pred = ((reg & MXC_CCM_CDCDR_SPDIF1_CLK_PRED_MASK) >> MXC_CCM_CDCDR_SPDIF1_CLK_PRED_OFFSET) + 1; podf = ((reg & MXC_CCM_CDCDR_SPDIF1_CLK_PODF_MASK) >> MXC_CCM_CDCDR_SPDIF1_CLK_PODF_OFFSET) + 1; div = (pred * podf); } return clk_get_rate(clk->parent) / div; } static struct clk spdif1_clk[] = { { __INIT_CLK_DEBUG(spdif1_clk_0) .id = 1, .parent = &pll3_sw_clk, .set_parent = _clk_spdif1_set_parent, .get_rate = _clk_spdif1_get_rate, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGRx_CG14_OFFSET, .disable = _clk_disable, .flags = AHB_HIGH_SET_POINT | CPU_FREQ_TRIG_UPDATE, }, { __INIT_CLK_DEBUG(spdif1_clk_1) .id = 0, .parent = &ipg_clk, .secondary = &spba_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGRx_CG15_OFFSET, .disable = _clk_disable, }, }; static int _clk_ddr_set_parent(struct clk *clk, struct clk *parent) { u32 reg, reg2, mux; struct timespec nstimeofday; struct timespec curtime; reg = __raw_readl(MXC_CCM_CBCMR); reg2 = __raw_readl(MXC_CCM_CBCDR); if (cpu_is_mx51()) { clk->parent = &ddr_hf_clk; mux = _get_mux_ddr(parent, &axi_a_clk, &axi_b_clk, &emi_slow_clk, &ahb_clk, &ddr_hf_clk); } else { clk->parent = &axi_a_clk; mux = _get_mux_ddr(parent, &axi_a_clk, &axi_b_clk, &emi_slow_clk, &ahb_clk, NULL); } if (mux < 4) { reg = (reg & ~MXC_CCM_CBCMR_DDR_CLK_SEL_MASK) | (mux << MXC_CCM_CBCMR_DDR_CLK_SEL_OFFSET); __raw_writel(reg, MXC_CCM_CBCMR); if (cpu_is_mx51()) reg2 = (reg2 & ~MXC_CCM_CBCDR_DDR_HF_SEL); } else { reg2 = (reg2 & ~MXC_CCM_CBCDR_DDR_HF_SEL) | (MXC_CCM_CBCDR_DDR_HF_SEL); } if (cpu_is_mx51()) { __raw_writel(reg2, MXC_CCM_CBCDR); getnstimeofday(&nstimeofday); while (__raw_readl(MXC_CCM_CDHIPR) & MXC_CCM_CDHIPR_DDR_HF_CLK_SEL_BUSY){ getnstimeofday(&curtime); if ((curtime.tv_nsec - nstimeofday.tv_nsec) > SPIN_DELAY) panic("_clk_ddr_set_parent failed\n"); } } return 0; } static struct clk ddr_clk = { __INIT_CLK_DEBUG(ddr_clk) .parent = &axi_b_clk, .set_parent = _clk_ddr_set_parent, }; static int _clk_arm_axi_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; reg = __raw_readl(MXC_CCM_CBCMR); mux = _get_mux(parent, &axi_a_clk, &axi_b_clk, &emi_slow_clk, &ahb_clk); reg = (reg & ~MXC_CCM_CBCMR_ARM_AXI_CLK_SEL_MASK) | (mux << MXC_CCM_CBCMR_ARM_AXI_CLK_SEL_OFFSET); __raw_writel(reg, MXC_CCM_CBCMR); return 0; } static struct clk arm_axi_clk = { __INIT_CLK_DEBUG(arm_axi_clk) .parent = &axi_a_clk, .set_parent = _clk_arm_axi_set_parent, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR0, .enable_shift = MXC_CCM_CCGRx_CG1_OFFSET, .disable = _clk_disable, }; static int _clk_vpu_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; reg = __raw_readl(MXC_CCM_CBCMR); mux = _get_mux(parent, &axi_a_clk, &axi_b_clk, &emi_slow_clk, &ahb_clk); reg = (reg & ~MXC_CCM_CBCMR_VPU_AXI_CLK_SEL_MASK) | (mux << MXC_CCM_CBCMR_VPU_AXI_CLK_SEL_OFFSET); __raw_writel(reg, MXC_CCM_CBCMR); return 0; } static struct clk vpu_clk[] = { { __INIT_CLK_DEBUG(vpu_clk_0) .set_parent = _clk_vpu_set_parent, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGRx_CG4_OFFSET, .disable = _clk_disable, .secondary = &vpu_clk[1], .flags = AHB_HIGH_SET_POINT | CPU_FREQ_TRIG_UPDATE, }, { __INIT_CLK_DEBUG(vpu_clk_1) .set_parent = _clk_vpu_set_parent, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGRx_CG3_OFFSET, .disable = _clk_disable, .secondary = &vpu_clk[2], }, { __INIT_CLK_DEBUG(vpu_clk_2) .parent = &emi_fast_clk, } }; static int _clk_lpsr_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; reg = __raw_readl(MXC_CCM_CLPCR); mux = _get_mux(parent, &ckil_clk, &osc_clk, NULL, NULL); reg = (reg & ~MXC_CCM_CLPCR_LPSR_CLK_SEL_MASK) | (mux << MXC_CCM_CLPCR_LPSR_CLK_SEL_OFFSET); __raw_writel(reg, MXC_CCM_CLPCR); return 0; } static struct clk lpsr_clk = { __INIT_CLK_DEBUG(lpsr_clk) .parent = &ckil_clk, .set_parent = _clk_lpsr_set_parent, }; static unsigned long _clk_pgc_get_rate(struct clk *clk) { u32 reg, div; reg = __raw_readl(MXC_CCM_CSCDR1); div = (reg & MXC_CCM_CSCDR1_PGC_CLK_PODF_MASK) >> MXC_CCM_CSCDR1_PGC_CLK_PODF_OFFSET; div = 1 >> div; return clk_get_rate(clk->parent) / div; } static struct clk pgc_clk = { __INIT_CLK_DEBUG(pgc_clk) .parent = &ipg_clk, .get_rate = _clk_pgc_get_rate, }; static unsigned long _clk_usb_get_rate(struct clk *clk) { return 60000000; } /*usb OTG clock */ static struct clk usb_clk = { __INIT_CLK_DEBUG(usb_clk) .get_rate = _clk_usb_get_rate, }; static struct clk usb_utmi_clk = { __INIT_CLK_DEBUG(usb_utmi_clk) .enable = _clk_enable, .enable_reg = MXC_CCM_CSCMR1, .enable_shift = MXC_CCM_CSCMR1_USB_PHY_CLK_SEL_OFFSET, .disable = _clk_disable, }; static struct clk rtc_clk = { __INIT_CLK_DEBUG(rtc_clk) .parent = &ckil_clk, .secondary = &ipg_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG14_OFFSET, .disable = _clk_disable, }; static struct clk ata_clk = { __INIT_CLK_DEBUG(ata_clk) .parent = &ipg_clk, .secondary = &spba_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG0_OFFSET, .disable = _clk_disable, .flags = AHB_HIGH_SET_POINT | CPU_FREQ_TRIG_UPDATE, }; static struct clk owire_clk = { __INIT_CLK_DEBUG(owire_clk) .parent = &ipg_perclk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR2, .enable_shift = MXC_CCM_CCGRx_CG11_OFFSET, .disable = _clk_disable, }; static struct clk fec_clk[] = { { __INIT_CLK_DEBUG(fec_clk_0) .parent = &ipg_clk, .secondary = &fec_clk[1], .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR2, .enable_shift = MXC_CCM_CCGRx_CG12_OFFSET, .disable = _clk_disable, .flags = AHB_HIGH_SET_POINT | CPU_FREQ_TRIG_UPDATE, }, { __INIT_CLK_DEBUG(fec_clk_1) .parent = &tmax2_clk, .secondary = &fec_clk[2], }, { __INIT_CLK_DEBUG(fec_clk_2) .parent = &aips_tz2_clk, .secondary = &emi_fast_clk, }, }; static struct clk scc_clk[] = { { __INIT_CLK_DEBUG(sahara_clk_0) .parent = &ahb_clk, .secondary = &scc_clk[1], .enable_reg = MXC_CCM_CCGR1, .enable_shift = MXC_CCM_CCGRx_CG15_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(sahara_clk_1) .parent = &tmax1_clk, .secondary = &scc_clk[2], }, { .parent = &emi_fast_clk, .secondary = &emi_intr_clk[0], } }; static struct clk sahara_clk[] = { { __INIT_CLK_DEBUG(scc_clk_0) .parent = &ahb_clk, .secondary = &sahara_clk[1], .enable_reg = MXC_CCM_CCGR4, .enable_shift = MXC_CCM_CCGRx_CG7_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(scc_clk_1) .parent = &tmax1_clk, .secondary = &sahara_clk[2], }, { .parent = &scc_clk, .secondary = &emi_fast_clk, } }; static int _clk_gpu3d_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; reg = __raw_readl(MXC_CCM_CBCMR); mux = _get_mux(parent, &axi_a_clk, &axi_b_clk, &emi_slow_clk, &ahb_clk); reg = (reg & ~MXC_CCM_CBCMR_GPU_CLK_SEL_MASK) | (mux << MXC_CCM_CBCMR_GPU_CLK_SEL_OFFSET); __raw_writel(reg, MXC_CCM_CBCMR); return 0; } static struct clk garb_clk = { __INIT_CLK_DEBUG(garb_clk) .parent = &axi_a_clk, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGRx_CG2_OFFSET, .disable = _clk_disable, }; static struct clk gpu3d_clk = { __INIT_CLK_DEBUG(gpu3d_clk) .parent = &axi_a_clk, .set_parent = _clk_gpu3d_set_parent, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR5, .enable_shift = MXC_CCM_CCGRx_CG1_OFFSET, .disable = _clk_disable, .flags = AHB_HIGH_SET_POINT | CPU_FREQ_TRIG_UPDATE, .secondary = &garb_clk, }; static int _clk_gpu2d_set_parent(struct clk *clk, struct clk *parent) { u32 reg, mux; reg = __raw_readl(MXC_CCM_CBCMR); mux = _get_mux(parent, &axi_a_clk, &axi_b_clk, &emi_slow_clk, &ahb_clk); reg = (reg & ~MXC_CCM_CBCMR_GPU2D_CLK_SEL_MASK) | (mux << MXC_CCM_CBCMR_GPU2D_CLK_SEL_OFFSET); __raw_writel(reg, MXC_CCM_CBCMR); return 0; } static struct clk gpu2d_clk = { __INIT_CLK_DEBUG(gpu2d_clk) .parent = &axi_a_clk, .set_parent = _clk_gpu2d_set_parent, .enable = _clk_enable, .enable_reg = MXC_CCM_CCGR6, .enable_shift = MXC_CCM_CCGRx_CG7_OFFSET, .disable = _clk_disable, .flags = AHB_HIGH_SET_POINT | CPU_FREQ_TRIG_UPDATE, }; static unsigned long cko1_get_rate(struct clk *clk) { u32 reg; reg = __raw_readl(MXC_CCM_CCOSR); reg &= MXC_CCM_CCOSR_CKOL_DIV_MASK; reg = reg >> MXC_CCM_CCOSR_CKOL_DIV_OFFSET; return clk_get_rate(clk->parent) / (reg + 1); } static int cko1_enable(struct clk *clk) { u32 reg; reg = __raw_readl(MXC_CCM_CCOSR); reg |= MXC_CCM_CCOSR_CKOL_EN; __raw_writel(reg, MXC_CCM_CCOSR); return 0; } static void cko1_disable(struct clk *clk) { u32 reg; reg = __raw_readl(MXC_CCM_CCOSR); reg &= ~MXC_CCM_CCOSR_CKOL_EN; __raw_writel(reg, MXC_CCM_CCOSR); } static int cko1_set_rate(struct clk *clk, unsigned long rate) { u32 reg, div; u32 parent_rate = clk_get_rate(clk->parent); div = (parent_rate/rate - 1) & 0x7; reg = __raw_readl(MXC_CCM_CCOSR); reg &= ~MXC_CCM_CCOSR_CKOL_DIV_MASK; reg |= div << MXC_CCM_CCOSR_CKOL_DIV_OFFSET; __raw_writel(reg, MXC_CCM_CCOSR); return 0; } static unsigned long cko1_round_rate(struct clk *clk, unsigned long rate) { u32 div; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; div = div < 1 ? 1 : div; div = div > 8 ? 8 : div; return parent_rate / div; } static int cko1_set_parent(struct clk *clk, struct clk *parent) { u32 sel, reg; if (parent == &cpu_clk) sel = 0; else if (parent == &pll1_sw_clk) sel = 1; else if (parent == &pll2_sw_clk) sel = 2; else if (parent == &pll3_sw_clk) sel = 3; else if (parent == &emi_slow_clk) sel = 4; else if (parent == &pll4_sw_clk) sel = 5; else if (parent == &emi_enfc_clk) sel = 6; else if (parent == &ipu_di_clk[0]) sel = 8; else if (parent == &ahb_clk) sel = 11; else if (parent == &ipg_clk) sel = 12; else if (parent == &ipg_perclk) sel = 13; else if (parent == &ckil_clk) sel = 14; else return -EINVAL; reg = __raw_readl(MXC_CCM_CCOSR); reg &= ~MXC_CCM_CCOSR_CKOL_SEL_MASK; reg |= sel << MXC_CCM_CCOSR_CKOL_SEL_OFFSET; __raw_writel(reg, MXC_CCM_CCOSR); return 0; } static struct clk cko1_clk = { __INIT_CLK_DEBUG(cko1_clk) .get_rate = cko1_get_rate, .enable = cko1_enable, .disable = cko1_disable, .set_rate = cko1_set_rate, .round_rate = cko1_round_rate, .set_parent = cko1_set_parent, }; static int _clk_asrc_set_parent(struct clk *clk, struct clk *parent) { u32 reg; reg = __raw_readl(MXC_CCM_CSCMR2); if (parent == &pll4_sw_clk) reg |= MXC_CCM_CSCMR2_ASRC_CLK_SEL; else reg &= ~MXC_CCM_CSCMR2_ASRC_CLK_SEL; __raw_writel(reg, MXC_CCM_CSCMR2); return 0; } static unsigned long _clk_asrc_get_rate(struct clk *clk) { u32 reg, prediv, podf; reg = __raw_readl(MXC_CCM_CSCDR2); prediv = ((reg & MXC_CCM_CSCDR2_ASRC_CLK_PRED_MASK) >> MXC_CCM_CSCDR2_ASRC_CLK_PRED_OFFSET) + 1; if (prediv == 1) BUG(); podf = ((reg & MXC_CCM_CSCDR2_ASRC_CLK_PODF_MASK) >> MXC_CCM_CSCDR2_ASRC_CLK_PODF_OFFSET) + 1; return clk_get_rate(clk->parent) / (prediv * podf); } static int _clk_asrc_set_rate(struct clk *clk, unsigned long rate) { u32 reg; u32 div; u32 pre, post; u32 parent_rate = clk_get_rate(clk->parent); div = parent_rate / rate; if ((parent_rate / div) != rate) return -EINVAL; __calc_pre_post_dividers(div, &pre, &post); reg = __raw_readl(MXC_CCM_CSCDR2) & ~(MXC_CCM_CSCDR2_ASRC_CLK_PRED_MASK | MXC_CCM_CSCDR2_ASRC_CLK_PODF_MASK); reg |= (post - 1) << MXC_CCM_CSCDR2_ASRC_CLK_PODF_OFFSET; reg |= (pre - 1) << MXC_CCM_CSCDR2_ASRC_CLK_PRED_OFFSET; __raw_writel(reg, MXC_CCM_CSCDR2); return 0; } static unsigned long _clk_asrc_round_rate(struct clk *clk, unsigned long rate) { u32 pre, post; u32 parent_rate = clk_get_rate(clk->parent); u32 div = parent_rate / rate; if (parent_rate % rate) div++; __calc_pre_post_dividers(div, &pre, &post); return parent_rate / (pre * post); } static struct clk asrc_clk[] = { { __INIT_CLK_DEBUG(asrc_clk_0) .id = 0, .parent = &pll4_sw_clk, .set_parent = _clk_asrc_set_parent, .get_rate = _clk_asrc_get_rate, .set_rate = _clk_asrc_set_rate, .round_rate = _clk_asrc_round_rate, .enable_reg = MXC_CCM_CCGR7, .enable_shift = MXC_CCM_CCGRx_CG1_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, { __INIT_CLK_DEBUG(asrc_clk_1) .id = 0, .parent = &ipg_clk, .enable_reg = MXC_CCM_CCGR7, .enable_shift = MXC_CCM_CCGRx_CG0_OFFSET, .enable = _clk_enable, .disable = _clk_disable, }, }; #define _REGISTER_CLOCK(d, n, c) \ { \ .dev_id = d, \ .con_id = n, \ .clk = &c, \ } static struct clk_lookup lookups[] = { _REGISTER_CLOCK(NULL, "osc", osc_clk), _REGISTER_CLOCK(NULL, "ckih", ckih_clk), _REGISTER_CLOCK(NULL, "ckih2", ckih2_clk), _REGISTER_CLOCK(NULL, "ckil", ckil_clk), _REGISTER_CLOCK(NULL, "pll1_main_clk", pll1_main_clk), _REGISTER_CLOCK(NULL, "pll1_sw_clk", pll1_sw_clk), _REGISTER_CLOCK(NULL, "pll2", pll2_sw_clk), _REGISTER_CLOCK(NULL, "pll3", pll3_sw_clk), _REGISTER_CLOCK(NULL, "gpc_dvfs_clk", gpc_dvfs_clk), _REGISTER_CLOCK(NULL, "lp_apm", lp_apm_clk), _REGISTER_CLOCK(NULL, "cpu_clk", cpu_clk), _REGISTER_CLOCK(NULL, "periph_apm_clk", periph_apm_clk), _REGISTER_CLOCK(NULL, "main_bus_clk", main_bus_clk), _REGISTER_CLOCK(NULL, "axi_a_clk", axi_a_clk), _REGISTER_CLOCK(NULL, "axi_b_clk", axi_b_clk), _REGISTER_CLOCK(NULL, "ahb_clk", ahb_clk), _REGISTER_CLOCK(NULL, "ahb_max_clk", ahb_max_clk), _REGISTER_CLOCK(NULL, "vpu_clk", vpu_clk[0]), _REGISTER_CLOCK(NULL, "vpu_core_clk", vpu_clk[1]), _REGISTER_CLOCK(NULL, "nfc_clk", emi_enfc_clk), _REGISTER_CLOCK("imx-sdma", NULL, sdma_clk[0]), _REGISTER_CLOCK(NULL, "ipu1_clk", ipu_clk[0]), _REGISTER_CLOCK(NULL, "ipu1_di0_clk", ipu_di_clk[0]), _REGISTER_CLOCK(NULL, "ipu1_di1_clk", ipu_di_clk[1]), _REGISTER_CLOCK(NULL, "csi_mclk1", csi0_clk), _REGISTER_CLOCK(NULL, "csi_mclk2", csi1_clk), _REGISTER_CLOCK(NULL, "tve_clk", tve_clk), _REGISTER_CLOCK("imx-uart.0", NULL, uart1_clk[0]), _REGISTER_CLOCK("imx-uart.1", NULL, uart2_clk[0]), _REGISTER_CLOCK("imx-uart.2", NULL, uart3_clk[0]), _REGISTER_CLOCK(NULL, "i2c_clk", i2c_clk[0]), _REGISTER_CLOCK("imx-i2c.1", NULL, i2c_clk[1]), _REGISTER_CLOCK("mxc_pwm.0", NULL, pwm1_clk[0]), _REGISTER_CLOCK("mxc_pwm.1", NULL, pwm2_clk[0]), _REGISTER_CLOCK(NULL, "ssi_lp_apm_clk", ssi_lp_apm_clk), _REGISTER_CLOCK("imx-ssi.0", NULL, ssi1_clk[0]), _REGISTER_CLOCK("imx-ssi.1", NULL, ssi2_clk[0]), _REGISTER_CLOCK("imx-ssi.2", NULL, ssi3_clk[0]), _REGISTER_CLOCK(NULL, "ssi_ext1_clk", ssi_ext1_clk), _REGISTER_CLOCK(NULL, "ssi_ext2_clk", ssi_ext2_clk), _REGISTER_CLOCK(NULL, "iim_clk", iim_clk), _REGISTER_CLOCK(NULL, "usboh3_clk", usboh3_clk[0]), _REGISTER_CLOCK(NULL, "usb_ahb_clk", usb_ahb_clk), _REGISTER_CLOCK(NULL, "usb_phy1_clk", usb_phy_clk[0]), _REGISTER_CLOCK(NULL, "usb_utmi_clk", usb_utmi_clk), _REGISTER_CLOCK(NULL, "usb_clk", usb_clk), _REGISTER_CLOCK("sdhci-esdhc-imx.0", NULL, esdhc1_clk[0]), _REGISTER_CLOCK("sdhci-esdhc-imx.1", NULL, esdhc2_clk[0]), _REGISTER_CLOCK("sdhci-esdhc-imx.2", NULL, esdhc3_clk[0]), _REGISTER_CLOCK("sdhci-esdhc-imx.3", NULL, esdhc4_clk[0]), _REGISTER_CLOCK(NULL, "emi_slow_clk", emi_slow_clk), _REGISTER_CLOCK(NULL, "ddr_clk", ddr_clk), _REGISTER_CLOCK(NULL, "emi_enfc_clk", emi_enfc_clk), _REGISTER_CLOCK(NULL, "emi_fast_clk", emi_fast_clk), _REGISTER_CLOCK(NULL, "emi_intr_clk.0", emi_intr_clk[0]), _REGISTER_CLOCK(NULL, "emi_intr_clk.1", emi_intr_clk[1]), _REGISTER_CLOCK(NULL, "spdif_xtal_clk", spdif_xtal_clk), _REGISTER_CLOCK("mxc_spdif.0", NULL, spdif0_clk[0]), _REGISTER_CLOCK("mxc_vpu.0", NULL, vpu_clk[0]), _REGISTER_CLOCK(NULL, "lpsr_clk", lpsr_clk), _REGISTER_CLOCK("mxc_rtc.0", NULL, rtc_clk), _REGISTER_CLOCK("pata_fsl", NULL, ata_clk), _REGISTER_CLOCK("mxc_w1.0", NULL, owire_clk), _REGISTER_CLOCK(NULL, "sahara_clk", sahara_clk[0]), _REGISTER_CLOCK(NULL, "gpu3d_clk", gpu3d_clk), _REGISTER_CLOCK(NULL, "garb_clk", garb_clk), _REGISTER_CLOCK(NULL, "gpu2d_clk", gpu2d_clk), _REGISTER_CLOCK("mxc_scc.0", NULL, scc_clk[0]), _REGISTER_CLOCK(NULL, "cko1", cko1_clk), _REGISTER_CLOCK(NULL, "gpt", gpt_clk[0]), _REGISTER_CLOCK("fec.0", NULL, fec_clk[0]), _REGISTER_CLOCK("mxc_w1.0", NULL, owire_clk), }; static struct clk_lookup mx51_lookups[] = { _REGISTER_CLOCK("mxc_i2c_hs.3", NULL, hsi2c_serial_clk), _REGISTER_CLOCK("mxc_sim.0", NULL, sim_clk[0]), _REGISTER_CLOCK("mxc_spdif.0", NULL, spdif1_clk[0]), _REGISTER_CLOCK(NULL, "mipi_hsp_clk", mipi_hsp_clk), _REGISTER_CLOCK(NULL, "ddr_hf_clk", ddr_hf_clk), _REGISTER_CLOCK("imx51-ecspi.0", NULL, cspi1_clk[0]), _REGISTER_CLOCK("imx51-ecspi.1", NULL, cspi2_clk[0]), _REGISTER_CLOCK("imx51-cspi.0", NULL, cspi3_clk), }; static struct clk_lookup mx53_lookups[] = { _REGISTER_CLOCK(NULL, "pll4", pll4_sw_clk), _REGISTER_CLOCK("imx-uart.3", NULL, uart4_clk[0]), _REGISTER_CLOCK("imx-uart.4", NULL, uart5_clk[0]), _REGISTER_CLOCK("imx-i2c.2", NULL, i2c_clk[2]), _REGISTER_CLOCK(NULL, "usb_phy2_clk", usb_phy_clk[1]), _REGISTER_CLOCK(NULL, "ocram_clk", ocram_clk), _REGISTER_CLOCK(NULL, "imx_sata_clk", sata_clk), _REGISTER_CLOCK(NULL, "ieee_1588_clk", ieee_1588_clk), _REGISTER_CLOCK(NULL, "ieee_rtc_clk", ieee_rtc_clk), _REGISTER_CLOCK("mxc_mlb.0", NULL, mlb_clk[0]), _REGISTER_CLOCK("FlexCAN.0", "can_clk", can1_clk[0]), _REGISTER_CLOCK("FlexCAN.1", "can_clk", can2_clk[0]), _REGISTER_CLOCK(NULL, "ldb_di0_clk", ldb_di_clk[0]), _REGISTER_CLOCK(NULL, "ldb_di1_clk", ldb_di_clk[1]), _REGISTER_CLOCK(NULL, "esai_clk", esai_clk[0]), _REGISTER_CLOCK(NULL, "esai_ipg_clk", esai_clk[1]), _REGISTER_CLOCK(NULL, "asrc_clk", asrc_clk[1]), _REGISTER_CLOCK(NULL, "asrc_serial_clk", asrc_clk[0]), _REGISTER_CLOCK("imx53-ecspi.0", NULL, cspi1_clk[0]), _REGISTER_CLOCK("imx53-ecspi.1", NULL, cspi2_clk[0]), _REGISTER_CLOCK("imx53-cspi.0", NULL, cspi3_clk), }; static void clk_tree_init(void) { u32 reg, dp_ctl; ipg_perclk.set_parent(&ipg_perclk, &lp_apm_clk); /* *Initialise the IPG PER CLK dividers to 3. IPG_PER_CLK should be at * 8MHz, its derived from lp_apm. */ reg = __raw_readl(MXC_CCM_CBCDR); reg &= ~MXC_CCM_CBCDR_PERCLK_PRED1_MASK; reg &= ~MXC_CCM_CBCDR_PERCLK_PRED2_MASK; reg &= ~MXC_CCM_CBCDR_PERCLK_PODF_MASK; reg |= (2 << MXC_CCM_CBCDR_PERCLK_PRED1_OFFSET); __raw_writel(reg, MXC_CCM_CBCDR); /* set pll1_main_clk parent */ pll1_main_clk.parent = &osc_clk; /* set pll2_sw_clk parent */ pll2_sw_clk.parent = &osc_clk; /* set pll3_clk parent */ pll3_sw_clk.parent = &osc_clk; if (cpu_is_mx51()) { dp_ctl = __raw_readl(pll1_base + MXC_PLL_DP_CTL); if ((dp_ctl & MXC_PLL_DP_CTL_REF_CLK_SEL_MASK) == 0) pll1_main_clk.parent = &fpm_clk; dp_ctl = __raw_readl(pll2_base + MXC_PLL_DP_CTL); if ((dp_ctl & MXC_PLL_DP_CTL_REF_CLK_SEL_MASK) == 0) pll2_sw_clk.parent = &fpm_clk; dp_ctl = __raw_readl(pll3_base + MXC_PLL_DP_CTL); if ((dp_ctl & MXC_PLL_DP_CTL_REF_CLK_SEL_MASK) == 0) pll3_sw_clk.parent = &fpm_clk; } else { /* set pll4_clk parent */ pll4_sw_clk.parent = &osc_clk; } /* set emi_slow_clk parent */ emi_slow_clk.parent = &main_bus_clk; reg = __raw_readl(MXC_CCM_CBCDR); if ((reg & MXC_CCM_CBCDR_EMI_CLK_SEL) != 0) emi_slow_clk.parent = &ahb_clk; /* set ipg_perclk parent */ ipg_perclk.parent = &lp_apm_clk; reg = __raw_readl(MXC_CCM_CBCMR); if ((reg & MXC_CCM_CBCMR_PERCLK_IPG_CLK_SEL) != 0) { ipg_perclk.parent = &ipg_clk; } else { if ((reg & MXC_CCM_CBCMR_PERCLK_LP_APM_CLK_SEL) == 0) ipg_perclk.parent = &main_bus_clk; } } int __init mx51_clocks_init(unsigned long ckil, unsigned long osc, unsigned long ckih1, unsigned long ckih2) { __iomem void *base; struct clk *tclk; int i = 0, j = 0, reg; int op_cnt = 0; u32 pll1_rate; pll1_base = MX51_DPLL1_BASE; pll2_base = MX51_DPLL2_BASE; pll3_base = MX51_DPLL3_BASE; /* Turn off all possible clocks */ if (mxc_jtag_enabled) { __raw_writel(1 << MXC_CCM_CCGRx_CG0_OFFSET | 1 << MXC_CCM_CCGRx_CG1_OFFSET | 1 << MXC_CCM_CCGRx_CG2_OFFSET | 3 << MXC_CCM_CCGRx_CG3_OFFSET | 3 << MXC_CCM_CCGRx_CG4_OFFSET | 3 << MXC_CCM_CCGRx_CG8_OFFSET | 3 << MXC_CCM_CCGRx_CG9_OFFSET | 1 << MXC_CCM_CCGRx_CG12_OFFSET | 1 << MXC_CCM_CCGRx_CG13_OFFSET | 1 << MXC_CCM_CCGRx_CG14_OFFSET, MXC_CCM_CCGR0); } else { __raw_writel(1 << MXC_CCM_CCGRx_CG0_OFFSET | 1 << MXC_CCM_CCGRx_CG1_OFFSET | 1 << MXC_CCM_CCGRx_CG2_OFFSET | 3 << MXC_CCM_CCGRx_CG3_OFFSET | 3 << MXC_CCM_CCGRx_CG8_OFFSET | 3 << MXC_CCM_CCGRx_CG9_OFFSET | 1 << MXC_CCM_CCGRx_CG12_OFFSET | 1 << MXC_CCM_CCGRx_CG13_OFFSET | 3 << MXC_CCM_CCGRx_CG14_OFFSET, MXC_CCM_CCGR0); } __raw_writel(0, MXC_CCM_CCGR1); __raw_writel(0, MXC_CCM_CCGR2); __raw_writel(0, MXC_CCM_CCGR3); __raw_writel(1 << MXC_CCM_CCGRx_CG8_OFFSET, MXC_CCM_CCGR4); __raw_writel(1 << MXC_CCM_CCGRx_CG2_OFFSET | 1 << MXC_CCM_CCGR5_CG6_1_OFFSET | 1 << MXC_CCM_CCGR5_CG6_2_OFFSET | 3 << MXC_CCM_CCGRx_CG7_OFFSET | 1 << MXC_CCM_CCGRx_CG8_OFFSET | 3 << MXC_CCM_CCGRx_CG9_OFFSET | 1 << MXC_CCM_CCGRx_CG10_OFFSET | 3 << MXC_CCM_CCGRx_CG11_OFFSET, MXC_CCM_CCGR5); __raw_writel(1 << MXC_CCM_CCGRx_CG4_OFFSET, MXC_CCM_CCGR6); external_low_reference = ckil; external_high_reference = ckih1; ckih2_reference = ckih2; oscillator_reference = osc; /* Fix up clocks unique to MX51. */ esdhc2_clk[0].get_rate = _clk_esdhc2_get_rate; esdhc2_clk[0].set_rate = _clk_esdhc2_set_rate; clk_tree_init(); for (i = 0; i < ARRAY_SIZE(lookups); i++) { clkdev_add(&lookups[i]); clk_debug_register(lookups[i].clk); } for (i = 0; i < ARRAY_SIZE(mx51_lookups); i++) { clkdev_add(&mx51_lookups[i]); clk_debug_register(mx51_lookups[i].clk); } max_axi_a_clk = MAX_AXI_A_CLK_MX51; max_axi_b_clk = MAX_AXI_B_CLK_MX51; max_ahb_clk = MAX_AHB_CLK_MX51; max_emi_slow_clk = MAX_AHB_CLK_MX51; /* set DDR clock parent */ reg = 0; if (mx51_revision() >= IMX_CHIP_REVISION_2_0) { reg = __raw_readl(MXC_CCM_CBCDR) & MXC_CCM_CBCDR_DDR_HF_SEL; reg >>= MXC_CCM_CBCDR_DDR_HF_SEL_OFFSET; if (reg) tclk = &ddr_hf_clk; } if (reg == 0) { reg = __raw_readl(MXC_CCM_CBCMR) & MXC_CCM_CBCMR_DDR_CLK_SEL_MASK; reg >>= MXC_CCM_CBCMR_DDR_CLK_SEL_OFFSET; if (reg == 0) { tclk = &axi_a_clk; } else if (reg == 1) { tclk = &axi_b_clk; } else if (reg == 2) { tclk = &emi_slow_clk; } else { tclk = &ahb_clk; } } clk_set_parent(&ddr_clk, tclk); /*Setup the LPM bypass bits */ reg = __raw_readl(MXC_CCM_CLPCR); reg |= MXC_CCM_CLPCR_BYPASS_HSC_LPM_HS | MXC_CCM_CLPCR_BYPASS_IPU_LPM_HS | MXC_CCM_CLPCR_BYPASS_RTIC_LPM_HS | MXC_CCM_CLPCR_BYPASS_SCC_LPM_HS_MX51 | MXC_CCM_CLPCR_BYPASS_SDMA_LPM_HS_MX51; __raw_writel(reg, MXC_CCM_CLPCR); /* Disable the handshake with HSC block as its not * initialised right now. */ reg = __raw_readl(MXC_CCM_CCDR); reg |= MXC_CCM_CCDR_HSC_HS_MASK; __raw_writel(reg, MXC_CCM_CCDR); clk_enable(&cpu_clk); /* Set SDHC parents to be PLL2 */ clk_set_parent(&esdhc1_clk[0], &pll2_sw_clk); clk_set_parent(&esdhc2_clk[0], &pll2_sw_clk); /* set SDHC root clock as 166.25MHZ*/ clk_set_rate(&esdhc1_clk[0], 166250000); clk_set_rate(&esdhc2_clk[0], 166250000); /* Initialise the parents to be axi_b, parents are set to * axi_a when the clocks are enabled. */ clk_set_parent(&vpu_clk[0], &axi_a_clk); clk_set_parent(&vpu_clk[1], &axi_a_clk); clk_set_parent(&gpu3d_clk, &axi_a_clk); clk_set_parent(&gpu2d_clk, &axi_a_clk); /* move cspi to 24MHz */ clk_set_parent(&cspi_main_clk, &lp_apm_clk); clk_set_rate(&cspi_main_clk, 12000000); /*move the spdif0 to spdif_xtal_ckl */ clk_set_parent(&spdif0_clk[0], &spdif_xtal_clk); /*set the SPDIF dividers to 1 */ reg = __raw_readl(MXC_CCM_CDCDR); reg &= ~MXC_CCM_CDCDR_SPDIF0_CLK_PODF_MASK; reg &= ~MXC_CCM_CDCDR_SPDIF0_CLK_PRED_MASK; __raw_writel(reg, MXC_CCM_CDCDR); /* move the spdif1 to 24MHz */ clk_set_parent(&spdif1_clk[0], &spdif_xtal_clk); /* set the spdif1 dividers to 1 */ reg = __raw_readl(MXC_CCM_CDCDR); reg &= ~MXC_CCM_CDCDR_SPDIF1_CLK_PODF_MASK; reg &= ~MXC_CCM_CDCDR_SPDIF1_CLK_PRED_MASK; __raw_writel(reg, MXC_CCM_CDCDR); /* Move SSI clocks to SSI_LP_APM clock */ clk_set_parent(&ssi_lp_apm_clk, &lp_apm_clk); clk_set_parent(&ssi1_clk[0], &ssi_lp_apm_clk); /* set the SSI dividers to divide by 2 */ reg = __raw_readl(MXC_CCM_CS1CDR); reg &= ~MXC_CCM_CS1CDR_SSI1_CLK_PODF_MASK; reg &= ~MXC_CCM_CS1CDR_SSI1_CLK_PRED_MASK; reg |= 1 << MXC_CCM_CS1CDR_SSI1_CLK_PRED_OFFSET; __raw_writel(reg, MXC_CCM_CS1CDR); clk_set_parent(&ssi2_clk[0], &ssi_lp_apm_clk); reg = __raw_readl(MXC_CCM_CS2CDR); reg &= ~MXC_CCM_CS2CDR_SSI2_CLK_PODF_MASK; reg &= ~MXC_CCM_CS2CDR_SSI2_CLK_PRED_MASK; reg |= 1 << MXC_CCM_CS2CDR_SSI2_CLK_PRED_OFFSET; __raw_writel(reg, MXC_CCM_CS2CDR); /* * SSI3 has no clock divide register, * we always set SSI3 parent clock to SSI1 and freq same to SSI1 */ clk_set_parent(&ssi3_clk[0], &ssi1_clk[0]); /* Change the SSI_EXT1_CLK to be sourced from SSI1_CLK_ROOT */ clk_set_parent(&ssi_ext1_clk, &ssi1_clk[0]); clk_set_parent(&ssi_ext2_clk, &ssi2_clk[0]); /* move usb_phy_clk to 24MHz */ clk_set_parent(&usb_phy_clk[0], &osc_clk); /* set usboh3_clk to pll2 */ clk_set_parent(&usboh3_clk[0], &pll2_sw_clk); reg = __raw_readl(MXC_CCM_CSCDR1); reg &= ~MXC_CCM_CSCDR1_USBOH3_CLK_PODF_MASK; reg &= ~MXC_CCM_CSCDR1_USBOH3_CLK_PRED_MASK; reg |= 4 << MXC_CCM_CSCDR1_USBOH3_CLK_PRED_OFFSET; reg |= 1 << MXC_CCM_CSCDR1_USBOH3_CLK_PODF_OFFSET; __raw_writel(reg, MXC_CCM_CSCDR1); mx51_cpu_op_init(); /* Set the current working point. */ cpu_op_tbl = get_cpu_op(&cpu_op_nr); /* Update the cpu working point table based on the PLL1 freq * at boot time */ pll1_rate = clk_get_rate(&pll1_main_clk); if (pll1_rate <= cpu_op_tbl[cpu_op_nr - 1].cpu_rate) op_cnt = 1; else if (pll1_rate <= cpu_op_tbl[1].cpu_rate && pll1_rate > cpu_op_tbl[2].cpu_rate) op_cnt = cpu_op_nr - 1; else op_cnt = cpu_op_nr; cpu_op_tbl[0].cpu_rate = pll1_rate; if (op_cnt == 1) { cpu_op_tbl[0] = cpu_op_tbl[cpu_op_nr - 1]; memset(&cpu_op_tbl[cpu_op_nr - 1], 0, sizeof(struct cpu_op)); memset(&cpu_op_tbl[cpu_op_nr - 2], 0, sizeof(struct cpu_op)); } else if (op_cnt < cpu_op_nr) { for (i = 0; i < op_cnt; i++) cpu_op_tbl[i] = cpu_op_tbl[i+1]; memset(&cpu_op_tbl[i], 0, sizeof(struct cpu_op)); } if (op_cnt < cpu_op_nr) { set_num_cpu_op(op_cnt); cpu_op_tbl = get_cpu_op(&cpu_op_nr); } pll1_rate = clk_get_rate(&pll1_main_clk); for (j = 0; j < cpu_op_nr; j++) { if ((ddr_clk.parent == &ddr_hf_clk)) { /* Change the CPU podf divider based on the boot up * pll1 rate. */ cpu_op_tbl[j].cpu_podf = (pll1_rate / cpu_op_tbl[j].cpu_rate) - 1; if (pll1_rate / (cpu_op_tbl[j].cpu_podf + 1) > cpu_op_tbl[j].cpu_rate) { cpu_op_tbl[j].cpu_podf++; cpu_op_tbl[j].cpu_rate = pll1_rate / (1000 * (cpu_op_tbl[j].cpu_podf + 1)); cpu_op_tbl[j].cpu_rate *= 1000; } if (pll1_rate / (cpu_op_tbl[j].cpu_podf + 1) < cpu_op_tbl[j].cpu_rate) { cpu_op_tbl[j].cpu_rate = pll1_rate; } } cpu_op_tbl[j].pll_rate = pll1_rate; } /* Set the current working point. */ for (i = 0; i < cpu_op_nr; i++) { if (clk_get_rate(&cpu_clk) == cpu_op_tbl[i].cpu_rate) { cpu_curr_op = i; break; } } if (i > cpu_op_nr) BUG(); clk_set_parent(&arm_axi_clk, &axi_a_clk); clk_set_parent(&ipu_clk[0], &axi_b_clk); if (uart_at_24) { /* Move UART to run from lp_apm */ clk_set_parent(&uart_main_clk, &lp_apm_clk); /* Set the UART dividers to divide, so the UART_CLK is 24MHz. */ reg = __raw_readl(MXC_CCM_CSCDR1); reg &= ~MXC_CCM_CSCDR1_UART_CLK_PODF_MASK; reg &= ~MXC_CCM_CSCDR1_UART_CLK_PRED_MASK; reg |= (0 << MXC_CCM_CSCDR1_UART_CLK_PRED_OFFSET) | (0 << MXC_CCM_CSCDR1_UART_CLK_PODF_OFFSET); __raw_writel(reg, MXC_CCM_CSCDR1); } else { clk_set_parent(&uart_main_clk, &pll2_sw_clk); /* Set the UART dividers to divide, so the UART_CLK is 66.5MHz. */ reg = __raw_readl(MXC_CCM_CSCDR1); reg &= ~MXC_CCM_CSCDR1_UART_CLK_PODF_MASK; reg &= ~MXC_CCM_CSCDR1_UART_CLK_PRED_MASK; reg |= (4 << MXC_CCM_CSCDR1_UART_CLK_PRED_OFFSET) | (1 << MXC_CCM_CSCDR1_UART_CLK_PODF_OFFSET); __raw_writel(reg, MXC_CCM_CSCDR1); } clk_set_parent(&emi_slow_clk, &ahb_clk); clk_set_rate(&emi_slow_clk, clk_round_rate(&emi_slow_clk, 130000000)); /* Change the NFC clock rate to be 1:4 ratio with emi clock. */ clk_set_rate(&emi_enfc_clk, clk_round_rate(&emi_enfc_clk, (clk_get_rate(&emi_slow_clk))/4)); /* System timer */ mxc_timer_init(&gpt_clk[0], MX51_IO_ADDRESS(MX51_GPT1_BASE_ADDR), MX51_MXC_INT_GPT); return 0; } int __init mx53_clocks_init(unsigned long ckil, unsigned long osc, unsigned long ckih1, unsigned long ckih2) { __iomem void *base; struct clk *tclk; int i = 0, j = 0, reg; u32 pll1_rate; pll1_base = MX53_DPLL1_BASE; pll2_base = MX53_DPLL2_BASE; pll3_base = MX53_DPLL3_BASE; pll4_base = MX53_DPLL4_BASE; /* Turn off all possible clocks */ if (mxc_jtag_enabled) { __raw_writel(1 << MXC_CCM_CCGRx_CG0_OFFSET | 1 << MXC_CCM_CCGRx_CG1_OFFSET | 1 << MXC_CCM_CCGRx_CG2_OFFSET | 3 << MXC_CCM_CCGRx_CG3_OFFSET | 3 << MXC_CCM_CCGRx_CG4_OFFSET | 3 << MXC_CCM_CCGRx_CG8_OFFSET | 3 << MXC_CCM_CCGRx_CG9_OFFSET | 1 << MXC_CCM_CCGRx_CG12_OFFSET | 1 << MXC_CCM_CCGRx_CG13_OFFSET | 1 << MXC_CCM_CCGRx_CG14_OFFSET, MXC_CCM_CCGR0); } else { __raw_writel(1 << MXC_CCM_CCGRx_CG0_OFFSET | 1 << MXC_CCM_CCGRx_CG1_OFFSET | 3 << MXC_CCM_CCGRx_CG3_OFFSET | 3 << MXC_CCM_CCGRx_CG8_OFFSET | 3 << MXC_CCM_CCGRx_CG9_OFFSET | 1 << MXC_CCM_CCGRx_CG12_OFFSET | 1 << MXC_CCM_CCGRx_CG13_OFFSET | 3 << MXC_CCM_CCGRx_CG14_OFFSET, MXC_CCM_CCGR0); } __raw_writel(0, MXC_CCM_CCGR1); __raw_writel(0, MXC_CCM_CCGR2); __raw_writel(0, MXC_CCM_CCGR3); __raw_writel(1 << MXC_CCM_CCGRx_CG8_OFFSET, MXC_CCM_CCGR4); __raw_writel(1 << MXC_CCM_CCGRx_CG2_OFFSET | 1 << MXC_CCM_CCGRx_CG6_OFFSET | 3 << MXC_CCM_CCGRx_CG7_OFFSET | 1 << MXC_CCM_CCGRx_CG8_OFFSET | 1 << MXC_CCM_CCGRx_CG9_OFFSET | 3 << MXC_CCM_CCGRx_CG11_OFFSET, MXC_CCM_CCGR5); __raw_writel(1 << MXC_CCM_CCGRx_CG0_OFFSET | 3 << MXC_CCM_CCGRx_CG1_OFFSET | 1 << MXC_CCM_CCGRx_CG4_OFFSET | 3 << MXC_CCM_CCGRx_CG12_OFFSET | 3 << MXC_CCM_CCGRx_CG13_OFFSET , MXC_CCM_CCGR6); __raw_writel(0, MXC_CCM_CCGR7); external_low_reference = ckil; external_high_reference = ckih1; ckih2_reference = ckih2; oscillator_reference = osc; usb_phy_clk[0].enable_reg = MXC_CCM_CCGR4; usb_phy_clk[0].enable_shift = MXC_CCM_CCGRx_CG5_OFFSET; ipumux1_clk.enable_reg = MXC_CCM_CCGR5; ipumux1_clk.enable_shift = MXC_CCM_CCGRx_CG6_OFFSET; ipumux2_clk.enable_reg = MXC_CCM_CCGR6; ipumux2_clk.enable_shift = MXC_CCM_CCGRx_CG0_OFFSET; esdhc3_clk[0].get_rate = _clk_esdhc3_get_rate; esdhc3_clk[0].set_rate = _clk_sdhc3_set_rate; vpu_clk[2].secondary = &emi_intr_clk[0]; #if defined(CONFIG_USB_STATIC_IRAM) \ || defined(CONFIG_USB_STATIC_IRAM_PPH) usboh3_clk[1].secondary = &emi_intr_clk[1]; #endif #ifdef CONFIG_SND_MXC_SOC_IRAM ssi2_clk[2].secondary = &emi_intr_clk[1]; ssi1_clk[2].secondary = &emi_intr_clk[1]; #endif #ifdef CONFIG_SDMA_IRAM sdma_clk[1].secondary = &emi_intr_clk[1]; #endif clk_tree_init(); for (i = 0; i < ARRAY_SIZE(lookups); i++) { clkdev_add(&lookups[i]); clk_debug_register(lookups[i].clk); } for (i = 0; i < ARRAY_SIZE(mx53_lookups); i++) { clkdev_add(&mx53_lookups[i]); clk_debug_register(mx53_lookups[i].clk); } clk_set_parent(&esai_clk[0], &ckih_clk); ldb_di_clk[0].parent = ldb_di_clk[1].parent = tve_clk.parent = &pll4_sw_clk; max_axi_a_clk = MAX_AXI_A_CLK_MX53; max_axi_b_clk = MAX_AXI_B_CLK_MX53; max_ahb_clk = MAX_AHB_CLK_MX53; max_emi_slow_clk = MAX_AHB_CLK_MX53; /* set DDR clock parent */ reg = __raw_readl(MXC_CCM_CBCMR) & MXC_CCM_CBCMR_DDR_CLK_SEL_MASK; reg >>= MXC_CCM_CBCMR_DDR_CLK_SEL_OFFSET; if (reg == 0) { tclk = &axi_a_clk; } else if (reg == 1) { tclk = &axi_b_clk; } else if (reg == 2) { tclk = &emi_slow_clk; } else { tclk = &ahb_clk; } clk_set_parent(&ddr_clk, tclk); clk_set_parent(&esdhc1_clk[2], &tmax2_clk); clk_set_parent(&esdhc2_clk[0], &esdhc1_clk[0]); clk_set_parent(&esdhc3_clk[0], &pll2_sw_clk); #if 0 /*Setup the LPM bypass bits */ reg = __raw_readl(MXC_CCM_CLPCR); reg |= MXC_CCM_CLPCR_BYPASS_IPU_LPM_HS | MXC_CCM_CLPCR_BYPASS_RTIC_LPM_HS | MXC_CCM_CLPCR_BYPASS_SCC_LPM_HS | MXC_CCM_CLPCR_BYPASS_SDMA_LPM_HS; __raw_writel(reg, MXC_CCM_CLPCR); #endif clk_enable(&cpu_clk); clk_enable(&main_bus_clk); /* Set AXI_B_CLK to be 200MHz */ clk_set_rate(&axi_b_clk, 200000000); /* Initialise the parents to be axi_b, parents are set to * axi_a when the clocks are enabled. */ clk_set_parent(&vpu_clk[0], &axi_b_clk); clk_set_parent(&vpu_clk[1], &axi_b_clk); /* move cspi to 24MHz */ clk_set_parent(&cspi_main_clk, &lp_apm_clk); clk_set_rate(&cspi_main_clk, 12000000); /*move the spdif0 to spdif_xtal_ckl */ clk_set_parent(&spdif0_clk[0], &spdif_xtal_clk); /*set the SPDIF dividers to 1 */ reg = __raw_readl(MXC_CCM_CDCDR); reg &= ~MXC_CCM_CDCDR_SPDIF0_CLK_PODF_MASK; reg &= ~MXC_CCM_CDCDR_SPDIF0_CLK_PRED_MASK; __raw_writel(reg, MXC_CCM_CDCDR); /* Move SSI clocks to SSI_LP_APM clock */ clk_set_parent(&ssi_lp_apm_clk, &lp_apm_clk); clk_set_parent(&ssi1_clk[0], &ssi_lp_apm_clk); /* set the SSI dividers to divide by 2 */ reg = __raw_readl(MXC_CCM_CS1CDR); reg &= ~MXC_CCM_CS1CDR_SSI1_CLK_PODF_MASK; reg &= ~MXC_CCM_CS1CDR_SSI1_CLK_PRED_MASK; reg |= 1 << MXC_CCM_CS1CDR_SSI1_CLK_PRED_OFFSET; __raw_writel(reg, MXC_CCM_CS1CDR); clk_set_parent(&ssi2_clk[0], &ssi_lp_apm_clk); reg = __raw_readl(MXC_CCM_CS2CDR); reg &= ~MXC_CCM_CS2CDR_SSI2_CLK_PODF_MASK; reg &= ~MXC_CCM_CS2CDR_SSI2_CLK_PRED_MASK; reg |= 1 << MXC_CCM_CS2CDR_SSI2_CLK_PRED_OFFSET; __raw_writel(reg, MXC_CCM_CS2CDR); /* Change the SSI_EXT1_CLK to be sourced from PLL2 for camera */ clk_set_parent(&ssi_ext1_clk, &pll2_sw_clk); clk_set_rate(&ssi_ext1_clk, 24000000); clk_set_parent(&ssi_ext2_clk, &ssi2_clk[0]); /* move usb_phy_clk to 24MHz */ clk_set_parent(&usb_phy_clk[0], &osc_clk); clk_set_parent(&usb_phy_clk[1], &osc_clk); /* set usboh3_clk to pll2 */ clk_set_parent(&usboh3_clk[0], &pll2_sw_clk); reg = __raw_readl(MXC_CCM_CSCDR1); reg &= ~MXC_CCM_CSCDR1_USBOH3_CLK_PODF_MASK; reg &= ~MXC_CCM_CSCDR1_USBOH3_CLK_PRED_MASK; reg |= 4 << MXC_CCM_CSCDR1_USBOH3_CLK_PRED_OFFSET; reg |= 1 << MXC_CCM_CSCDR1_USBOH3_CLK_PODF_OFFSET; __raw_writel(reg, MXC_CCM_CSCDR1); /* set SDHC root clock as 200MHZ*/ clk_set_rate(&esdhc1_clk[0], 200000000); clk_set_rate(&esdhc3_clk[0], 200000000); /* Set the 1588 RTC input clocks as 108MHZ */ clk_set_parent(&ieee_rtc_clk, &pll3_sw_clk); clk_set_rate(&ieee_rtc_clk, 108000000); /* The CPU working point should be set according to part number * information. But part number information is not clear now. * So update the cpu working point table based on the PLL1 freq * at boot time */ pll1_rate = clk_get_rate(&pll1_main_clk); mx53_cpu_op_init(); if (pll1_rate > 1000000000) mx53_set_cpu_part_number(IMX53_CEC_1_2G); else if (pll1_rate > 800000000) mx53_set_cpu_part_number(IMX53_CEC); else mx53_set_cpu_part_number(IMX53_AEC); /* Set the current working point. */ cpu_op_tbl = get_cpu_op(&cpu_op_nr); for (i = 0; i < cpu_op_nr; i++) { if (clk_get_rate(&cpu_clk) == cpu_op_tbl[i].cpu_rate) { cpu_curr_op = i; break; } } if (i > cpu_op_nr) BUG(); clk_set_parent(&arm_axi_clk, &axi_b_clk); clk_set_parent(&ipu_clk[0], &axi_b_clk); clk_set_parent(&gpu3d_clk, &axi_b_clk); clk_set_parent(&gpu2d_clk, &axi_b_clk); clk_set_parent(&emi_slow_clk, &ahb_clk); clk_set_rate(&emi_slow_clk, clk_round_rate(&emi_slow_clk, 133333333)); clk_set_rate(&emi_enfc_clk, clk_round_rate(&emi_enfc_clk, MAX_NFC_CLK)); /* set the freq of asrc_serial_clk */ clk_set_rate(&asrc_clk[0], clk_round_rate(&asrc_clk[0], 1190000)); /* System timer */ mxc_timer_init(&gpt_clk[0], MX53_IO_ADDRESS(MX53_GPT1_BASE_ADDR), MX53_INT_GPT); return 0; } /*! * Setup cpu clock based on working point. * @param op cpu freq working point * @return 0 on success or error code on failure. */ static int cpu_clk_set_op(int op) { struct cpu_op *p; u32 reg, pll_hfsm; u32 stat; if (op == cpu_curr_op) return 0; p = &cpu_op_tbl[op]; /* * If DDR clock is sourced from PLL1, we cannot drop PLL1 freq. * Use the ARM_PODF to change the freq of the core, leave the PLL1 * freq unchanged. Meanwhile, if pll_rate is same, use the ARM_PODF * to change the freq of core */ if ((ddr_clk.parent == &ddr_hf_clk) || (p->pll_rate == cpu_op_tbl[cpu_curr_op].pll_rate)) { reg = __raw_readl(MXC_CCM_CACRR); reg &= ~MXC_CCM_CACRR_ARM_PODF_MASK; reg |= cpu_op_tbl[op].cpu_podf << MXC_CCM_CACRR_ARM_PODF_OFFSET; __raw_writel(reg, MXC_CCM_CACRR); cpu_curr_op = op; } else { struct timespec nstimeofday; struct timespec curtime; /* Change the ARM clock to requested frequency */ /* First move the ARM clock to step clock which is running * at 24MHz. */ /* Change the source of pll1_sw_clk to be the step_clk */ reg = __raw_readl(MXC_CCM_CCSR); reg |= MXC_CCM_CCSR_PLL1_SW_CLK_SEL; __raw_writel(reg, MXC_CCM_CCSR); /* Stop the PLL */ reg = __raw_readl(pll1_base + MXC_PLL_DP_CTL); reg &= ~MXC_PLL_DP_CTL_UPEN; __raw_writel(reg, pll1_base + MXC_PLL_DP_CTL); reg = __raw_readl(MXC_CCM_CACRR); reg = (reg & ~MXC_CCM_CACRR_ARM_PODF_MASK) | p->cpu_podf; __raw_writel(reg, MXC_CCM_CACRR); reg = __raw_readl(pll1_base + MXC_PLL_DP_CTL); pll_hfsm = reg & MXC_PLL_DP_CTL_HFSM; /* PDF and MFI */ reg = p->pdf | p->mfi << MXC_PLL_DP_OP_MFI_OFFSET; if (pll_hfsm == 0) { __raw_writel(reg, pll1_base + MXC_PLL_DP_OP); __raw_writel(p->mfd, pll1_base + MXC_PLL_DP_MFD); __raw_writel(p->mfn, pll1_base + MXC_PLL_DP_MFN); } else { __raw_writel(reg, pll1_base + MXC_PLL_DP_HFS_OP); __raw_writel(p->mfd, pll1_base + MXC_PLL_DP_HFS_MFD); __raw_writel(p->mfn, pll1_base + MXC_PLL_DP_HFS_MFN); } reg = __raw_readl(pll1_base + MXC_PLL_DP_CTL); reg |= MXC_PLL_DP_CTL_UPEN; /* Set the UPEN bits */ __raw_writel(reg, pll1_base + MXC_PLL_DP_CTL); /* Forcefully restart the PLL */ reg |= MXC_PLL_DP_CTL_RST; __raw_writel(reg, pll1_base + MXC_PLL_DP_CTL); /* Wait for the PLL to lock */ getnstimeofday(&nstimeofday); do { getnstimeofday(&curtime); if ((curtime.tv_nsec - nstimeofday.tv_nsec) > SPIN_DELAY) panic("pll1 relock failed\n"); stat = __raw_readl(pll1_base + MXC_PLL_DP_CTL) & MXC_PLL_DP_CTL_LRF; } while (!stat); reg = __raw_readl(MXC_CCM_CCSR); /* Move the PLL1 back to the pll1_main_clk */ reg &= ~MXC_CCM_CCSR_PLL1_SW_CLK_SEL; __raw_writel(reg, MXC_CCM_CCSR); cpu_curr_op = op; } #if defined(CONFIG_CPU_FREQ) cpufreq_trig_needed = 1; #endif return 0; }