diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/cpu/armv7/sunxi/clock_sun4i.c | 11 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-sunxi/clock.h | 1 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-sunxi/clock_sun4i.h | 3 |
3 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/clock_sun4i.c b/arch/arm/cpu/armv7/sunxi/clock_sun4i.c index ecbdb01..4a0d64f 100644 --- a/arch/arm/cpu/armv7/sunxi/clock_sun4i.c +++ b/arch/arm/cpu/armv7/sunxi/clock_sun4i.c @@ -180,6 +180,17 @@ void clock_set_pll1(unsigned int hz) } #endif +unsigned int clock_get_pll5p(void) +{ + struct sunxi_ccm_reg *const ccm = + (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; + uint32_t rval = readl(&ccm->pll5_cfg); + int n = ((rval & CCM_PLL5_CTRL_N_MASK) >> CCM_PLL5_CTRL_N_SHIFT); + int k = ((rval & CCM_PLL5_CTRL_K_MASK) >> CCM_PLL5_CTRL_K_SHIFT) + 1; + int p = ((rval & CCM_PLL5_CTRL_P_MASK) >> CCM_PLL5_CTRL_P_SHIFT); + return (24000000 * n * k) >> p; +} + unsigned int clock_get_pll6(void) { struct sunxi_ccm_reg *const ccm = diff --git a/arch/arm/include/asm/arch-sunxi/clock.h b/arch/arm/include/asm/arch-sunxi/clock.h index 012c2af..c562f62 100644 --- a/arch/arm/include/asm/arch-sunxi/clock.h +++ b/arch/arm/include/asm/arch-sunxi/clock.h @@ -25,6 +25,7 @@ int clock_init(void); int clock_twi_onoff(int port, int state); void clock_set_pll1(unsigned int hz); +unsigned int clock_get_pll5p(void); unsigned int clock_get_pll6(void); void clock_init_safe(void); void clock_init_uart(void); diff --git a/arch/arm/include/asm/arch-sunxi/clock_sun4i.h b/arch/arm/include/asm/arch-sunxi/clock_sun4i.h index 1ba997a..90af8e2 100644 --- a/arch/arm/include/asm/arch-sunxi/clock_sun4i.h +++ b/arch/arm/include/asm/arch-sunxi/clock_sun4i.h @@ -199,13 +199,16 @@ struct sunxi_ccm_reg { #define CCM_PLL5_CTRL_M1_MASK CCM_PLL5_CTRL_M1(0x3) #define CCM_PLL5_CTRL_M1_X(n) ((n) - 1) #define CCM_PLL5_CTRL_K(n) (((n) & 0x3) << 4) +#define CCM_PLL5_CTRL_K_SHIFT 4 #define CCM_PLL5_CTRL_K_MASK CCM_PLL5_CTRL_K(0x3) #define CCM_PLL5_CTRL_K_X(n) ((n) - 1) #define CCM_PLL5_CTRL_LDO (0x1 << 7) #define CCM_PLL5_CTRL_N(n) (((n) & 0x1f) << 8) +#define CCM_PLL5_CTRL_N_SHIFT 8 #define CCM_PLL5_CTRL_N_MASK CCM_PLL5_CTRL_N(0x1f) #define CCM_PLL5_CTRL_N_X(n) (n) #define CCM_PLL5_CTRL_P(n) (((n) & 0x3) << 16) +#define CCM_PLL5_CTRL_P_SHIFT 16 #define CCM_PLL5_CTRL_P_MASK CCM_PLL5_CTRL_P(0x3) #define CCM_PLL5_CTRL_P_X(n) ((n) - 1) #define CCM_PLL5_CTRL_BW (0x1 << 18) |