diff options
Diffstat (limited to 'arch/arm/mach-imx/imx9/clock.c')
| -rw-r--r-- | arch/arm/mach-imx/imx9/clock.c | 113 |
1 files changed, 91 insertions, 22 deletions
diff --git a/arch/arm/mach-imx/imx9/clock.c b/arch/arm/mach-imx/imx9/clock.c index 04f3116fd1c..a7ecccaf879 100644 --- a/arch/arm/mach-imx/imx9/clock.c +++ b/arch/arm/mach-imx/imx9/clock.c @@ -26,6 +26,7 @@ static struct anatop_reg *ana_regs = (struct anatop_reg *)ANATOP_BASE_ADDR; static struct imx_intpll_rate_table imx9_intpll_tbl[] = { INT_PLL_RATE(1800000000U, 1, 150, 2), /* 1.8Ghz */ INT_PLL_RATE(1700000000U, 1, 141, 2), /* 1.7Ghz */ + INT_PLL_RATE(1500000000U, 1, 125, 2), /* 1.5Ghz */ INT_PLL_RATE(1400000000U, 1, 175, 3), /* 1.4Ghz */ INT_PLL_RATE(1000000000U, 1, 166, 4), /* 1000Mhz */ INT_PLL_RATE(900000000U, 1, 150, 4), /* 900Mhz */ @@ -35,8 +36,11 @@ static struct imx_fracpll_rate_table imx9_fracpll_tbl[] = { FRAC_PLL_RATE(1000000000U, 1, 166, 4, 2, 3), /* 1000Mhz */ FRAC_PLL_RATE(933000000U, 1, 155, 4, 1, 2), /* 933Mhz */ FRAC_PLL_RATE(700000000U, 1, 145, 5, 5, 6), /* 700Mhz */ + FRAC_PLL_RATE(484000000U, 1, 121, 6, 0, 1), + FRAC_PLL_RATE(445333333U, 1, 167, 9, 0, 1), FRAC_PLL_RATE(466000000U, 1, 155, 8, 1, 3), /* 466Mhz */ FRAC_PLL_RATE(400000000U, 1, 200, 12, 0, 1), /* 400Mhz */ + FRAC_PLL_RATE(300000000U, 1, 150, 12, 0, 1), }; /* return in khz */ @@ -202,6 +206,9 @@ int configure_intpll(enum ccm_clk_src pll, u32 freq) return -EPERM; } + /* Clear PLL HW CTRL SEL */ + setbits_le32(®->ctrl.reg_clr, PLL_CTRL_HW_CTRL_SEL); + /* Bypass the PLL to ref */ writel(PLL_CTRL_CLKMUX_BYPASS, ®->ctrl.reg_set); @@ -570,7 +577,7 @@ u32 imx_get_i2cclk(u32 i2c_num) if (i2c_num > 7) return -EINVAL; - return ccm_clk_root_get_rate(LPUART1_CLK_ROOT + i2c_num); + return ccm_clk_root_get_rate(LPI2C1_CLK_ROOT + i2c_num); } u32 get_lpuart_clk(void) @@ -594,21 +601,27 @@ void init_uart_clk(u32 index) void init_clk_usdhc(u32 index) { - /* 400 Mhz */ + u32 div; + + if (IS_ENABLED(CONFIG_IMX9_LOW_DRIVE_MODE)) + div = 3; /* 266.67 Mhz */ + else + div = 2; /* 400 Mhz */ + switch (index) { case 0: ccm_lpcg_on(CCGR_USDHC1, 0); - ccm_clk_root_cfg(USDHC1_CLK_ROOT, SYS_PLL_PFD1, 2); + ccm_clk_root_cfg(USDHC1_CLK_ROOT, SYS_PLL_PFD1, div); ccm_lpcg_on(CCGR_USDHC1, 1); break; case 1: ccm_lpcg_on(CCGR_USDHC2, 0); - ccm_clk_root_cfg(USDHC2_CLK_ROOT, SYS_PLL_PFD1, 2); + ccm_clk_root_cfg(USDHC2_CLK_ROOT, SYS_PLL_PFD1, div); ccm_lpcg_on(CCGR_USDHC2, 1); break; case 2: ccm_lpcg_on(CCGR_USDHC3, 0); - ccm_clk_root_cfg(USDHC3_CLK_ROOT, SYS_PLL_PFD1, 2); + ccm_clk_root_cfg(USDHC3_CLK_ROOT, SYS_PLL_PFD1, div); ccm_lpcg_on(CCGR_USDHC3, 1); break; default: @@ -635,6 +648,9 @@ void dram_pll_init(ulong pll_val) void dram_enable_bypass(ulong clk_val) { switch (clk_val) { + case MHZ(625): + ccm_clk_root_cfg(DRAM_ALT_CLK_ROOT, SYS_PLL_PFD2, 1); + break; case MHZ(400): ccm_clk_root_cfg(DRAM_ALT_CLK_ROOT, SYS_PLL_PFD1, 2); break; @@ -670,42 +686,95 @@ void set_arm_clk(ulong freq) { /* Increase ARM clock to 1.7Ghz */ ccm_shared_gpr_set(SHARED_GPR_A55_CLK, SHARED_GPR_A55_CLK_SEL_CCM); - configure_intpll(ARM_PLL_CLK, 1700000000); + configure_intpll(ARM_PLL_CLK, freq); ccm_shared_gpr_set(SHARED_GPR_A55_CLK, SHARED_GPR_A55_CLK_SEL_PLL); } +void set_arm_core_max_clk(void) +{ + /* Increase ARM clock to max rate according to speed grade */ + u32 speed = get_cpu_speed_grade_hz(); + + set_arm_clk(speed); +} + #endif -int clock_init(void) -{ - int i; +#if IS_ENABLED(CONFIG_IMX9_LOW_DRIVE_MODE) +struct imx_clk_setting imx_clk_settings[] = { + /* Set A55 clk to 500M */ + {ARM_A55_CLK_ROOT, SYS_PLL_PFD0, 2}, + /* Set A55 periphal to 200M */ + {ARM_A55_PERIPH_CLK_ROOT, SYS_PLL_PFD1, 4}, + /* Set A55 mtr bus to 133M */ + {ARM_A55_MTR_BUS_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3}, + /* Sentinel to 133M */ + {SENTINEL_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3}, + /* Bus_wakeup to 133M */ + {BUS_WAKEUP_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3}, + /* Bus_AON to 133M */ + {BUS_AON_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3}, + /* M33 to 133M */ + {M33_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3}, + /* WAKEUP_AXI to 200M */ + {WAKEUP_AXI_CLK_ROOT, SYS_PLL_PFD1, 4}, + /* SWO TRACE to 133M */ + {SWO_TRACE_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3}, + /* M33 systetick to 24M */ + {M33_SYSTICK_CLK_ROOT, OSC_24M_CLK, 1}, + /* NIC to 250M */ + {NIC_CLK_ROOT, SYS_PLL_PFD0, 4}, + /* NIC_APB to 133M */ + {NIC_APB_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3} +}; +#else +struct imx_clk_setting imx_clk_settings[] = { + /* + * Set A55 clk to 500M. This clock root is normally used as intermediate + * clock source for A55 core/DSU when doing ARM PLL reconfig. set it to + * 500MHz(LD mode frequency) should be ok. + */ + {ARM_A55_CLK_ROOT, SYS_PLL_PFD0, 2}, /* Set A55 periphal to 333M */ - ccm_clk_root_cfg(ARM_A55_PERIPH_CLK_ROOT, SYS_PLL_PFD0, 3); + {ARM_A55_PERIPH_CLK_ROOT, SYS_PLL_PFD0, 3}, /* Set A55 mtr bus to 133M */ - ccm_clk_root_cfg(ARM_A55_MTR_BUS_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3); - + {ARM_A55_MTR_BUS_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3}, /* Sentinel to 200M */ - ccm_clk_root_cfg(SENTINEL_CLK_ROOT, SYS_PLL_PFD1_DIV2, 2); + {SENTINEL_CLK_ROOT, SYS_PLL_PFD1_DIV2, 2}, /* Bus_wakeup to 133M */ - ccm_clk_root_cfg(BUS_WAKEUP_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3); + {BUS_WAKEUP_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3}, /* Bus_AON to 133M */ - ccm_clk_root_cfg(BUS_AON_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3); + {BUS_AON_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3}, /* M33 to 200M */ - ccm_clk_root_cfg(M33_CLK_ROOT, SYS_PLL_PFD1_DIV2, 2); + {M33_CLK_ROOT, SYS_PLL_PFD1_DIV2, 2}, /* * WAKEUP_AXI to 312.5M, because of FEC only can support to 320M for * generating MII clock at 2.5M */ - ccm_clk_root_cfg(WAKEUP_AXI_CLK_ROOT, SYS_PLL_PFD2, 2); + {WAKEUP_AXI_CLK_ROOT, SYS_PLL_PFD2, 2}, /* SWO TRACE to 133M */ - ccm_clk_root_cfg(SWO_TRACE_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3); - /* M33 systetick to 133M */ - ccm_clk_root_cfg(M33_SYSTICK_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3); + {SWO_TRACE_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3}, + /* M33 systetick to 24M */ + {M33_SYSTICK_CLK_ROOT, OSC_24M_CLK, 1}, /* NIC to 400M */ - ccm_clk_root_cfg(NIC_CLK_ROOT, SYS_PLL_PFD1, 2); + {NIC_CLK_ROOT, SYS_PLL_PFD1, 2}, /* NIC_APB to 133M */ - ccm_clk_root_cfg(NIC_APB_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3); + {NIC_APB_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3} +}; +#endif + +int clock_init(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(imx_clk_settings); i++) { + ccm_clk_root_cfg(imx_clk_settings[i].clk_root, + imx_clk_settings[i].src, imx_clk_settings[i].div); + } + + if (IS_ENABLED(CONFIG_IMX9_LOW_DRIVE_MODE)) + set_arm_clk(MHZ(900)); /* allow for non-secure access */ for (i = 0; i < OSCPLL_END; i++) |