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| author | Timo Ketola <timo@exertus.fi> | 2012-04-18 22:55:28 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-05-15 08:31:33 +0200 |
| commit | 42d25327f596772b75ae42951f5909d0a66c67e3 (patch) | |
| tree | b18d5658729927261a6a656a81ba1e5159cd7f96 /arch/arm/cpu/arm926ejs | |
| parent | 3996a96c5e33aeb676b364936c95e61a987c4e61 (diff) | |
| download | blackbird-obmc-uboot-42d25327f596772b75ae42951f5909d0a66c67e3.tar.gz blackbird-obmc-uboot-42d25327f596772b75ae42951f5909d0a66c67e3.zip | |
i.MX25: esdhc: Add mxc_get_clock infrastructure
Defining CONFIG_FSL_ESDHC brings in a call to get_clocks, so let's
implement get_clocks function. This is how it seems to be implemented
elsewhere.
Signed-off-by: Timo Ketola <timo@exertus.fi>
Acked-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'arch/arm/cpu/arm926ejs')
| -rw-r--r-- | arch/arm/cpu/arm926ejs/mx25/generic.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm926ejs/mx25/generic.c b/arch/arm/cpu/arm926ejs/mx25/generic.c index 9cadb7c34c..8b07dae2b9 100644 --- a/arch/arm/cpu/arm926ejs/mx25/generic.c +++ b/arch/arm/cpu/arm926ejs/mx25/generic.c @@ -28,10 +28,15 @@ #include <asm/io.h> #include <asm/arch/imx-regs.h> #include <asm/arch/imx25-pinmux.h> +#include <asm/arch/clock.h> #ifdef CONFIG_MXC_MMC #include <asm/arch/mxcmmc.h> #endif +#ifdef CONFIG_FSL_ESDHC +DECLARE_GLOBAL_DATA_PTR; +#endif + /* * get the system pll clock in Hz * @@ -105,6 +110,20 @@ ulong imx_get_perclk(int clk) return lldiv(fref, div); } +unsigned int mxc_get_clock(enum mxc_clock clk) +{ + if (clk >= MXC_CLK_NUM) + return -1; + switch (clk) { + case MXC_ARM_CLK: + return imx_get_armclk(); + case MXC_FEC_CLK: + return imx_get_ahbclk(); + default: + return imx_get_perclk(clk); + } +} + u32 get_cpu_rev(void) { u32 srev; @@ -182,6 +201,14 @@ int cpu_eth_init(bd_t *bis) #endif } +int get_clocks(void) +{ +#ifdef CONFIG_FSL_ESDHC + gd->sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); +#endif + return 0; +} + /* * Initializes on-chip MMC controllers. * to override, implement board_mmc_init() |
