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| author | Ye.Li <B37916@freescale.com> | 2015-03-26 15:31:17 +0800 |
|---|---|---|
| committer | Peng Fan <Peng.Fan@freescale.com> | 2015-04-29 15:04:25 +0800 |
| commit | eed5195470c01966ebead595d52553824f17a94f (patch) | |
| tree | 67d93208653a41fe6a2cc156fec94622d16045d3 /arch/arm/cpu | |
| parent | 14a8e4e724a2c7fe918df06c49f661773458ed04 (diff) | |
| download | u-boot-imx-eed5195470c01966ebead595d52553824f17a94f.zip u-boot-imx-eed5195470c01966ebead595d52553824f17a94f.tar.gz u-boot-imx-eed5195470c01966ebead595d52553824f17a94f.tar.bz2 | |
MLK-10477-2 imx: mx7d: Add EPDC clock init and base address
Ungate the EPDC clock at system up if the EPDC is enabled
Signed-off-by: Ye.Li <B37916@freescale.com>
(cherry picked from commit f215632cb25d1076ab5c5465efdfad2212010d8d)
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv7/mx7/clock.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/mx7/clock.c b/arch/arm/cpu/armv7/mx7/clock.c index 4945916..583e45f 100644 --- a/arch/arm/cpu/armv7/mx7/clock.c +++ b/arch/arm/cpu/armv7/mx7/clock.c @@ -718,6 +718,25 @@ static void init_clk_wdog(void) } +#ifdef CONFIG_MXC_EPDC +static void init_clk_epdc(void) +{ + u32 target; + + /* disable the clock gate first */ + clock_enable(CCGR_EPDC, 0); + + /* 24Mhz */ + target = CLK_ROOT_ON | EPDC_PIXEL_CLK_ROOT_FROM_PLL_SYS_MAIN_480M_CLK | + CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) | + CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV12); + clock_set_target_val(EPDC_PIXEL_CLK_ROOT, target); + + /* enable the clock gate */ + clock_enable(CCGR_EPDC, 1); +} +#endif + static int enable_pll_enet(void) { u32 reg; @@ -993,6 +1012,9 @@ void clock_init(void) init_clk_weim(); init_clk_ecspi(); init_clk_wdog(); +#ifdef CONFIG_MXC_EPDC + init_clk_epdc(); +#endif enable_usboh3_clk(1); @@ -1015,6 +1037,17 @@ void hab_caam_clock_disable(void) } #endif +#ifdef CONFIG_MXC_EPDC +void epdc_clock_enable(void) +{ + clock_enable(CCGR_EPDC, 1); +} +void epdc_clock_disable(void) +{ + clock_enable(CCGR_EPDC, 0); +} +#endif + /* * Dump some core clockes. */ |