diff options
Diffstat (limited to 'arch/arm/cpu/armv7/omap-common/clocks-common.c')
| -rw-r--r-- | arch/arm/cpu/armv7/omap-common/clocks-common.c | 89 |
1 files changed, 81 insertions, 8 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/clocks-common.c b/arch/arm/cpu/armv7/omap-common/clocks-common.c index d36fcccaf..2becc4aff 100644 --- a/arch/arm/cpu/armv7/omap-common/clocks-common.c +++ b/arch/arm/cpu/armv7/omap-common/clocks-common.c @@ -47,6 +47,16 @@ #define puts(s) #endif +const u32 sys_clk_array[8] = { + 12000000, /* 12 MHz */ + 13000000, /* 13 MHz */ + 16800000, /* 16.8 MHz */ + 19200000, /* 19.2 MHz */ + 26000000, /* 26 MHz */ + 27000000, /* 27 MHz */ + 38400000, /* 38.4 MHz */ +}; + static inline u32 __get_sys_clk_index(void) { u32 ind; @@ -76,6 +86,29 @@ u32 get_sys_clk_freq(void) return sys_clk_array[index]; } +void setup_post_dividers(u32 const base, const struct dpll_params *params) +{ + struct dpll_regs *const dpll_regs = (struct dpll_regs *)base; + + /* Setup post-dividers */ + if (params->m2 >= 0) + writel(params->m2, &dpll_regs->cm_div_m2_dpll); + if (params->m3 >= 0) + writel(params->m3, &dpll_regs->cm_div_m3_dpll); + if (params->m4_h11 >= 0) + writel(params->m4_h11, &dpll_regs->cm_div_m4_h11_dpll); + if (params->m5_h12 >= 0) + writel(params->m5_h12, &dpll_regs->cm_div_m5_h12_dpll); + if (params->m6_h13 >= 0) + writel(params->m6_h13, &dpll_regs->cm_div_m6_h13_dpll); + if (params->m7_h14 >= 0) + writel(params->m7_h14, &dpll_regs->cm_div_m7_h14_dpll); + if (params->h22 >= 0) + writel(params->h22, &dpll_regs->cm_div_h22_dpll); + if (params->h23 >= 0) + writel(params->h23, &dpll_regs->cm_div_h23_dpll); +} + static inline void do_bypass_dpll(u32 const base) { struct dpll_regs *dpll_regs = (struct dpll_regs *)base; @@ -124,6 +157,46 @@ inline u32 check_for_lock(u32 const base) return lock; } +const struct dpll_params *get_mpu_dpll_params(struct dplls const *dpll_data) +{ + u32 sysclk_ind = get_sys_clk_index(); + return &dpll_data->mpu[sysclk_ind]; +} + +const struct dpll_params *get_core_dpll_params(struct dplls const *dpll_data) +{ + u32 sysclk_ind = get_sys_clk_index(); + return &dpll_data->core[sysclk_ind]; +} + +const struct dpll_params *get_per_dpll_params(struct dplls const *dpll_data) +{ + u32 sysclk_ind = get_sys_clk_index(); + return &dpll_data->per[sysclk_ind]; +} + +const struct dpll_params *get_iva_dpll_params(struct dplls const *dpll_data) +{ + u32 sysclk_ind = get_sys_clk_index(); + return &dpll_data->iva[sysclk_ind]; +} + +const struct dpll_params *get_usb_dpll_params(struct dplls const *dpll_data) +{ + u32 sysclk_ind = get_sys_clk_index(); + return &dpll_data->usb[sysclk_ind]; +} + +const struct dpll_params *get_abe_dpll_params(struct dplls const *dpll_data) +{ +#ifdef CONFIG_SYS_OMAP_ABE_SYSCK + u32 sysclk_ind = get_sys_clk_index(); + return &dpll_data->abe[sysclk_ind]; +#else + return dpll_data->abe; +#endif +} + static void do_setup_dpll(u32 const base, const struct dpll_params *params, u8 lock, char *dpll) { @@ -184,7 +257,7 @@ u32 omap_ddr_clk(void) omap_rev = omap_revision(); sys_clk_khz = get_sys_clk_freq() / 1000; - core_dpll_params = get_core_dpll_params(); + core_dpll_params = get_core_dpll_params(*dplls_data); debug("sys_clk %d\n ", sys_clk_khz * 1000); @@ -251,7 +324,7 @@ void configure_mpu_dpll(void) setbits_le32((*prcm)->cm_mpu_mpu_clkctrl, MPU_CLKCTRL_CLKSEL_ABE_DIV_MODE_MASK); - params = get_mpu_dpll_params(); + params = get_mpu_dpll_params(*dplls_data); do_setup_dpll((*prcm)->cm_clkmode_dpll_mpu, params, DPLL_LOCK, "mpu"); debug("MPU DPLL locked\n"); @@ -272,7 +345,7 @@ static void setup_usb_dpll(void) * Use CLKINP in KHz and adjust the denominator accordingly so * that we have enough accuracy and at the same time no overflow */ - params = get_usb_dpll_params(); + params = get_usb_dpll_params(*dplls_data); num = params->m * sys_clk_khz; den = (params->n + 1) * 250 * 1000; num += den - 1; @@ -294,7 +367,7 @@ static void setup_dplls(void) debug("setup_dplls\n"); /* CORE dpll */ - params = get_core_dpll_params(); /* default - safest */ + params = get_core_dpll_params(*dplls_data); /* default - safest */ /* * Do not lock the core DPLL now. Just set it up. * Core DPLL will be locked after setting up EMIF @@ -314,7 +387,7 @@ static void setup_dplls(void) debug("Core DPLL configured\n"); /* lock PER dpll */ - params = get_per_dpll_params(); + params = get_per_dpll_params(*dplls_data); do_setup_dpll((*prcm)->cm_clkmode_dpll_per, params, DPLL_LOCK, "per"); debug("PER DPLL locked\n"); @@ -337,11 +410,11 @@ static void setup_non_essential_dplls(void) clrsetbits_le32((*prcm)->cm_bypclk_dpll_iva, CM_BYPCLK_DPLL_IVA_CLKSEL_MASK, DPLL_IVA_CLKSEL_CORE_X2_DIV_2); - params = get_iva_dpll_params(); + params = get_iva_dpll_params(*dplls_data); do_setup_dpll((*prcm)->cm_clkmode_dpll_iva, params, DPLL_LOCK, "iva"); /* Configure ABE dpll */ - params = get_abe_dpll_params(); + params = get_abe_dpll_params(*dplls_data); #ifdef CONFIG_SYS_OMAP_ABE_SYSCK abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_SYSCLK; #else @@ -459,7 +532,7 @@ void freq_update_core(void) const struct dpll_params *core_dpll_params; u32 omap_rev = omap_revision(); - core_dpll_params = get_core_dpll_params(); + core_dpll_params = get_core_dpll_params(*dplls_data); /* Put EMIF clock domain in sw wakeup mode */ enable_clock_domain((*prcm)->cm_memif_clkstctrl, CD_CLKCTRL_CLKTRCTRL_SW_WKUP); |