diff options
| -rw-r--r-- | arch/arm/mach-imx/clk-imx27.c | 57 | ||||
| -rw-r--r-- | arch/arm/mach-imx/common.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-imx/imx27-dt.c | 6 |
3 files changed, 29 insertions, 35 deletions
diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c index f5a6a3fd541a..8c55797dc3e2 100644 --- a/arch/arm/mach-imx/clk-imx27.c +++ b/arch/arm/mach-imx/clk-imx27.c @@ -1,32 +1,31 @@ #include <linux/clk.h> -#include <linux/io.h> -#include <linux/module.h> +#include <linux/clk-provider.h> #include <linux/clkdev.h> #include <linux/err.h> -#include <linux/clk-provider.h> #include <linux/of.h> +#include <linux/of_address.h> #include "clk.h" #include "common.h" #include "hardware.h" -#define IO_ADDR_CCM(off) (MX27_IO_ADDRESS(MX27_CCM_BASE_ADDR + (off))) +static void __iomem *ccm __initdata; /* Register offsets */ -#define CCM_CSCR IO_ADDR_CCM(0x0) -#define CCM_MPCTL0 IO_ADDR_CCM(0x4) -#define CCM_MPCTL1 IO_ADDR_CCM(0x8) -#define CCM_SPCTL0 IO_ADDR_CCM(0xc) -#define CCM_SPCTL1 IO_ADDR_CCM(0x10) -#define CCM_OSC26MCTL IO_ADDR_CCM(0x14) -#define CCM_PCDR0 IO_ADDR_CCM(0x18) -#define CCM_PCDR1 IO_ADDR_CCM(0x1c) -#define CCM_PCCR0 IO_ADDR_CCM(0x20) -#define CCM_PCCR1 IO_ADDR_CCM(0x24) -#define CCM_CCSR IO_ADDR_CCM(0x28) -#define CCM_PMCTL IO_ADDR_CCM(0x2c) -#define CCM_PMCOUNT IO_ADDR_CCM(0x30) -#define CCM_WKGDCTL IO_ADDR_CCM(0x34) +#define CCM_CSCR (ccm + 0x00) +#define CCM_MPCTL0 (ccm + 0x04) +#define CCM_MPCTL1 (ccm + 0x08) +#define CCM_SPCTL0 (ccm + 0x0c) +#define CCM_SPCTL1 (ccm + 0x10) +#define CCM_OSC26MCTL (ccm + 0x14) +#define CCM_PCDR0 (ccm + 0x18) +#define CCM_PCDR1 (ccm + 0x1c) +#define CCM_PCCR0 (ccm + 0x20) +#define CCM_PCCR1 (ccm + 0x24) +#define CCM_CCSR (ccm + 0x28) +#define CCM_PMCTL (ccm + 0x2c) +#define CCM_PMCOUNT (ccm + 0x30) +#define CCM_WKGDCTL (ccm + 0x34) #define CCM_CSCR_UPDATE_DIS (1 << 31) #define CCM_CSCR_SSI2 (1 << 23) @@ -93,6 +92,8 @@ static void __init _mx27_clocks_init(unsigned long fref) { unsigned i; + BUG_ON(!ccm); + clk[dummy] = imx_clk_fixed("dummy", 0); clk[ckih] = imx_clk_fixed("ckih", fref); clk[ckil] = imx_clk_fixed("ckil", 32768); @@ -214,6 +215,8 @@ static void __init _mx27_clocks_init(unsigned long fref) int __init mx27_clocks_init(unsigned long fref) { + ccm = ioremap(MX27_CCM_BASE_ADDR, SZ_4K); + _mx27_clocks_init(fref); clk_register_clkdev(clk[uart1_ipg_gate], "ipg", "imx21-uart.0"); @@ -283,29 +286,27 @@ int __init mx27_clocks_init(unsigned long fref) return 0; } -int __init mx27_clocks_init_dt(void) +static void __init mx27_clocks_init_dt(struct device_node *np) { - struct device_node *np; + struct device_node *refnp; u32 fref = 26000000; /* default */ - for_each_compatible_node(np, NULL, "fixed-clock") { - if (!of_device_is_compatible(np, "fsl,imx-osc26m")) + for_each_compatible_node(refnp, NULL, "fixed-clock") { + if (!of_device_is_compatible(refnp, "fsl,imx-osc26m")) continue; - if (!of_property_read_u32(np, "clock-frequency", &fref)) + if (!of_property_read_u32(refnp, "clock-frequency", &fref)) break; } - _mx27_clocks_init(fref); + ccm = of_iomap(np, 0); - np = of_find_compatible_node(NULL, NULL, "fsl,imx27-ccm"); - BUG_ON(!np); + _mx27_clocks_init(fref); clk_data.clks = clk; clk_data.clk_num = ARRAY_SIZE(clk); of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); mxc_timer_init_dt(of_find_compatible_node(NULL, NULL, "fsl,imx1-gpt")); - - return 0; } +CLK_OF_DECLARE(imx27_ccm, "fsl,imx27-ccm", mx27_clocks_init_dt); diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h index 5aaea2bcf4f3..7668ff53773f 100644 --- a/arch/arm/mach-imx/common.h +++ b/arch/arm/mach-imx/common.h @@ -56,7 +56,6 @@ int mx27_clocks_init(unsigned long fref); int mx31_clocks_init(unsigned long fref); int mx35_clocks_init(void); int mx25_clocks_init_dt(void); -int mx27_clocks_init_dt(void); int mx31_clocks_init_dt(void); struct platform_device *mxc_register_gpio(char *name, int id, resource_size_t iobase, resource_size_t iosize, int irq, int irq_high); diff --git a/arch/arm/mach-imx/imx27-dt.c b/arch/arm/mach-imx/imx27-dt.c index 17bd4058133d..080e66c6a1d0 100644 --- a/arch/arm/mach-imx/imx27-dt.c +++ b/arch/arm/mach-imx/imx27-dt.c @@ -34,16 +34,10 @@ static const char * const imx27_dt_board_compat[] __initconst = { NULL }; -static void __init imx27_timer_init(void) -{ - mx27_clocks_init_dt(); -} - DT_MACHINE_START(IMX27_DT, "Freescale i.MX27 (Device Tree Support)") .map_io = mx27_map_io, .init_early = imx27_init_early, .init_irq = mx27_init_irq, - .init_time = imx27_timer_init, .init_machine = imx27_dt_init, .dt_compat = imx27_dt_board_compat, .restart = mxc_restart, |