diff options
Diffstat (limited to 'arch/arm/cpu/armv7/am33xx/clock.c')
| -rw-r--r-- | arch/arm/cpu/armv7/am33xx/clock.c | 47 | 
1 files changed, 38 insertions, 9 deletions
| diff --git a/arch/arm/cpu/armv7/am33xx/clock.c b/arch/arm/cpu/armv7/am33xx/clock.c index bbb9c1353..2b19506a3 100644 --- a/arch/arm/cpu/armv7/am33xx/clock.c +++ b/arch/arm/cpu/armv7/am33xx/clock.c @@ -24,6 +24,7 @@  #define PRCM_MOD_EN		0x2  #define PRCM_FORCE_WAKEUP	0x2 +#define PRCM_FUNCTL		0x0  #define PRCM_EMIF_CLK_ACTIVITY	BIT(2)  #define PRCM_L3_GCLK_ACTIVITY	BIT(4) @@ -38,7 +39,7 @@  #define CLK_MODE_SEL		0x7  #define CLK_MODE_MASK		0xfffffff8  #define CLK_DIV_SEL		0xFFFFFFE0 - +#define CPGMAC0_IDLE		0x30000  const struct cm_perpll *cmper = (struct cm_perpll *)CM_PER;  const struct cm_wkuppll *cmwkup = (struct cm_wkuppll *)CM_WKUP; @@ -70,6 +71,10 @@ static void enable_interface_clocks(void)  	writel(PRCM_MOD_EN, &cmper->l4hsclkctrl);  	while (readl(&cmper->l4hsclkctrl) != PRCM_MOD_EN)  		; + +	writel(PRCM_MOD_EN, &cmwkup->wkgpio0clkctrl); +	while (readl(&cmwkup->wkgpio0clkctrl) != PRCM_MOD_EN) +		;  }  /* @@ -118,6 +123,36 @@ static void enable_per_clocks(void)  	writel(PRCM_MOD_EN, &cmwkup->wkup_i2c0ctrl);  	while (readl(&cmwkup->wkup_i2c0ctrl) != PRCM_MOD_EN)  		; + +	/* gpio1 module */ +	writel(PRCM_MOD_EN, &cmper->gpio1clkctrl); +	while (readl(&cmper->gpio1clkctrl) != PRCM_MOD_EN) +		; + +	/* gpio2 module */ +	writel(PRCM_MOD_EN, &cmper->gpio2clkctrl); +	while (readl(&cmper->gpio2clkctrl) != PRCM_MOD_EN) +		; + +	/* gpio3 module */ +	writel(PRCM_MOD_EN, &cmper->gpio3clkctrl); +	while (readl(&cmper->gpio3clkctrl) != PRCM_MOD_EN) +		; + +	/* i2c1 */ +	writel(PRCM_MOD_EN, &cmper->i2c1clkctrl); +	while (readl(&cmper->i2c1clkctrl) != PRCM_MOD_EN) +		; + +	/* Ethernet */ +	writel(PRCM_MOD_EN, &cmper->cpgmac0clkctrl); +	while ((readl(&cmper->cpgmac0clkctrl) & CPGMAC0_IDLE) != PRCM_FUNCTL) +		; + +	/* spi0 */ +	writel(PRCM_MOD_EN, &cmper->spi0clkctrl); +	while (readl(&cmper->spi0clkctrl) != PRCM_MOD_EN) +		;  }  static void mpu_pll_config(void) @@ -216,7 +251,7 @@ static void per_pll_config(void)  		;  } -static void ddr_pll_config(void) +void ddr_pll_config(unsigned int ddrpll_m)  {  	u32 clkmode, clksel, div_m2; @@ -234,7 +269,7 @@ static void ddr_pll_config(void)  		;  	clksel = clksel & (~CLK_SEL_MASK); -	clksel = clksel | ((DDRPLL_M << CLK_SEL_SHIFT) | DDRPLL_N); +	clksel = clksel | ((ddrpll_m << CLK_SEL_SHIFT) | DDRPLL_N);  	writel(clksel, &cmwkup->clkseldpllddr);  	div_m2 = div_m2 & CLK_DIV_SEL; @@ -255,11 +290,6 @@ void enable_emif_clocks(void)  	writel(PRCM_MOD_EN, &cmper->emiffwclkctrl);  	/* Enable EMIF0 Clock */  	writel(PRCM_MOD_EN, &cmper->emifclkctrl); -	/* Poll for emif_gclk  & L3_G clock  are active */ -	while ((readl(&cmper->l3clkstctrl) & (PRCM_EMIF_CLK_ACTIVITY | -			PRCM_L3_GCLK_ACTIVITY)) != (PRCM_EMIF_CLK_ACTIVITY | -			PRCM_L3_GCLK_ACTIVITY)) -		;  	/* Poll if module is functional */  	while ((readl(&cmper->emifclkctrl)) != PRCM_MOD_EN)  		; @@ -273,7 +303,6 @@ void pll_init()  	mpu_pll_config();  	core_pll_config();  	per_pll_config(); -	ddr_pll_config();  	/* Enable the required interconnect clocks */  	enable_interface_clocks(); |