diff options
Diffstat (limited to 'arch/arm/mach-sunxi/clock_sun6i.c')
| -rw-r--r-- | arch/arm/mach-sunxi/clock_sun6i.c | 47 |
1 files changed, 46 insertions, 1 deletions
diff --git a/arch/arm/mach-sunxi/clock_sun6i.c b/arch/arm/mach-sunxi/clock_sun6i.c index 4762fbf..631bc6e 100644 --- a/arch/arm/mach-sunxi/clock_sun6i.c +++ b/arch/arm/mach-sunxi/clock_sun6i.c @@ -35,6 +35,11 @@ void clock_init_safe(void) clrbits_le32(&prcm->pll_ctrl1, PRCM_PLL_CTRL_LDO_KEY_MASK); #endif +#if defined(CONFIG_MACH_SUN8I_R40) || defined(CONFIG_MACH_SUN50I) + /* Set PLL lock enable bits and switch to old lock mode */ + writel(GENMASK(12, 0), &ccm->pll_lock_ctrl); +#endif + clock_set_pll1(408000000); writel(PLL6_CFG_DEFAULT, &ccm->pll6_cfg); @@ -145,6 +150,22 @@ void clock_set_pll3(unsigned int clk) &ccm->pll3_cfg); } +#ifdef CONFIG_SUNXI_DE2 +void clock_set_pll3_factors(int m, int n) +{ + struct sunxi_ccm_reg * const ccm = + (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; + + /* PLL3 rate = 24000000 * n / m */ + writel(CCM_PLL3_CTRL_EN | CCM_PLL3_CTRL_INTEGER_MODE | + CCM_PLL3_CTRL_N(n) | CCM_PLL3_CTRL_M(m), + &ccm->pll3_cfg); + + while (!(readl(&ccm->pll3_cfg) & CCM_PLL3_CTRL_LOCK)) + ; +} +#endif + void clock_set_pll5(unsigned int clk, bool sigma_delta_enable) { struct sunxi_ccm_reg * const ccm = @@ -217,7 +238,31 @@ done: } #endif -#if defined(CONFIG_MACH_SUN8I_A33) || defined(CONFIG_MACH_SUN50I) +#ifdef CONFIG_SUNXI_DE2 +void clock_set_pll10(unsigned int clk) +{ + struct sunxi_ccm_reg * const ccm = + (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; + const int m = 2; /* 12 MHz steps */ + + if (clk == 0) { + clrbits_le32(&ccm->pll10_cfg, CCM_PLL10_CTRL_EN); + return; + } + + /* PLL10 rate = 24000000 * n / m */ + writel(CCM_PLL10_CTRL_EN | CCM_PLL10_CTRL_INTEGER_MODE | + CCM_PLL10_CTRL_N(clk / (24000000 / m)) | CCM_PLL10_CTRL_M(m), + &ccm->pll10_cfg); + + while (!(readl(&ccm->pll10_cfg) & CCM_PLL10_CTRL_LOCK)) + ; +} +#endif + +#if defined(CONFIG_MACH_SUN8I_A33) || \ + defined(CONFIG_MACH_SUN8I_R40) || \ + defined(CONFIG_MACH_SUN50I) void clock_set_pll11(unsigned int clk, bool sigma_delta_enable) { struct sunxi_ccm_reg * const ccm = |