// SPDX-License-Identifier: GPL-2.0+ /* * Clock setup for SMDK5250 board based on EXYNOS5 * * Copyright (C) 2012 Samsung Electronics */ #include #include #include #include #include #include #include "clock_init.h" #include "common_setup.h" #include "exynos5_setup.h" #define FSYS1_MMC0_DIV_MASK 0xff0f #define FSYS1_MMC0_DIV_VAL 0x0701 struct arm_clk_ratios arm_clk_ratios[] = { #ifdef CONFIG_EXYNOS5420 { .arm_freq_mhz = 900, .apll_mdiv = 0x96, .apll_pdiv = 0x2, .apll_sdiv = 0x1, .arm2_ratio = 0x0, .apll_ratio = 0x3, .pclk_dbg_ratio = 0x6, .atb_ratio = 0x6, .periph_ratio = 0x7, .acp_ratio = 0x0, .cpud_ratio = 0x2, .arm_ratio = 0x0, } #else { .arm_freq_mhz = 600, .apll_mdiv = 0xc8, .apll_pdiv = 0x4, .apll_sdiv = 0x1, .arm2_ratio = 0x0, .apll_ratio = 0x1, .pclk_dbg_ratio = 0x1, .atb_ratio = 0x2, .periph_ratio = 0x7, .acp_ratio = 0x7, .cpud_ratio = 0x1, .arm_ratio = 0x0, }, { .arm_freq_mhz = 800, .apll_mdiv = 0x64, .apll_pdiv = 0x3, .apll_sdiv = 0x0, .arm2_ratio = 0x0, .apll_ratio = 0x1, .pclk_dbg_ratio = 0x1, .atb_ratio = 0x3, .periph_ratio = 0x7, .acp_ratio = 0x7, .cpud_ratio = 0x2, .arm_ratio = 0x0, }, { .arm_freq_mhz = 1000, .apll_mdiv = 0x7d, .apll_pdiv = 0x3, .apll_sdiv = 0x0, .arm2_ratio = 0x0, .apll_ratio = 0x1, .pclk_dbg_ratio = 0x1, .atb_ratio = 0x4, .periph_ratio = 0x7, .acp_ratio = 0x7, .cpud_ratio = 0x2, .arm_ratio = 0x0, }, { .arm_freq_mhz = 1200, .apll_mdiv = 0x96, .apll_pdiv = 0x3, .apll_sdiv = 0x0, .arm2_ratio = 0x0, .apll_ratio = 0x3, .pclk_dbg_ratio = 0x1, .atb_ratio = 0x5, .periph_ratio = 0x7, .acp_ratio = 0x7, .cpud_ratio = 0x3, .arm_ratio = 0x0, }, { .arm_freq_mhz = 1400, .apll_mdiv = 0xaf, .apll_pdiv = 0x3, .apll_sdiv = 0x0, .arm2_ratio = 0x0, .apll_ratio = 0x3, .pclk_dbg_ratio = 0x1, .atb_ratio = 0x6, .periph_ratio = 0x7, .acp_ratio = 0x7, .cpud_ratio = 0x3, .arm_ratio = 0x0, }, { .arm_freq_mhz = 1700, .apll_mdiv = 0x1a9, .apll_pdiv = 0x6, .apll_sdiv = 0x0, .arm2_ratio = 0x0, .apll_ratio = 0x3, .pclk_dbg_ratio = 0x1, .atb_ratio = 0x6, .periph_ratio = 0x7, .acp_ratio = 0x7, .cpud_ratio = 0x3, .arm_ratio = 0x0, } #endif }; struct mem_timings mem_timings[] = { #ifdef CONFIG_EXYNOS5420 { .mem_manuf = MEM_MANUF_SAMSUNG, .mem_type = DDR_MODE_DDR3, .frequency_mhz = 800, /* MPLL @800MHz*/ .mpll_mdiv = 0xc8, .mpll_pdiv = 0x3, .mpll_sdiv = 0x1, /* CPLL @666MHz */ .cpll_mdiv = 0xde, .cpll_pdiv = 0x4, .cpll_sdiv = 0x1, /* EPLL @600MHz */ .epll_mdiv = 0x64, .epll_pdiv = 0x2, .epll_sdiv = 0x1, /* VPLL @430MHz */ .vpll_mdiv = 0xd7, .vpll_pdiv = 0x3, .vpll_sdiv = 0x2, /* BPLL @800MHz */ .bpll_mdiv = 0xc8, .bpll_pdiv = 0x3, .bpll_sdiv = 0x1, /* KPLL @600MHz */ .kpll_mdiv = 0x190, .kpll_pdiv = 0x4, .kpll_sdiv = 0x2, /* DPLL @600MHz */ .dpll_mdiv = 0x190, .dpll_pdiv = 0x4, .dpll_sdiv = 0x2, /* IPLL @370MHz */ .ipll_mdiv = 0xb9, .ipll_pdiv = 0x3, .ipll_sdiv = 0x2, /* SPLL @400MHz */ .spll_mdiv = 0xc8, .spll_pdiv = 0x3, .spll_sdiv = 0x2, /* RPLL @141Mhz */ .rpll_mdiv = 0x5E, .rpll_pdiv = 0x2, .rpll_sdiv = 0x3, .direct_cmd_msr = { 0x00020018, 0x00030000, 0x00010046, 0x00000d70, 0x00000c70 }, .timing_ref = 0x000000bb, .timing_row = 0x6836650f, .timing_data = 0x3630580b, .timing_power = 0x41000a26, .phy0_dqs = 0x08080808, .phy1_dqs = 0x08080808, .phy0_dq = 0x08080808, .phy1_dq = 0x08080808, .phy0_tFS = 0x8, .phy1_tFS = 0x8, .phy0_pulld_dqs = 0xf, .phy1_pulld_dqs = 0xf, .lpddr3_ctrl_phy_reset = 0x1, .ctrl_start_point = 0x10, .ctrl_inc = 0x10, .ctrl_start = 0x1, .ctrl_dll_on = 0x1, .ctrl_ref = 0x8, .ctrl_force = 0x1a, .ctrl_rdlat = 0x0b, .ctrl_bstlen = 0x08, .fp_resync = 0x8, .iv_size = 0x7, .dfi_init_start = 1, .aref_en = 1, .rd_fetch = 0x3, .zq_mode_dds = 0x7, .zq_mode_term = 0x1, .zq_mode_noterm = 1, /* * Dynamic Clock: Always Running * Memory Burst length: 8 * Number of chips: 1 * Memory Bus width: 32 bit * Memory Type: DDR3 * Additional Latancy for PLL: 0 Cycle */ .memcontrol = DMC_MEMCONTROL_CLK_STOP_DISABLE | DMC_MEMCONTROL_DPWRDN_DISABLE | DMC_MEMCONTROL_DPWRDN_ACTIVE_PRECHARGE | DMC_MEMCONTROL_TP_DISABLE | DMC_MEMCONTROL_DSREF_DISABLE | DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(0) | DMC_MEMCONTROL_MEM_TYPE_DDR3 | DMC_MEMCONTROL_MEM_WIDTH_32BIT | DMC_MEMCONTROL_NUM_CHIP_1 | DMC_MEMCONTROL_BL_8 | DMC_MEMCONTROL_PZQ_DISABLE | DMC_MEMCONTROL_MRR_BYTE_7_0, .memconfig = DMC_MEMCONFIG_CHIP_MAP_SPLIT | DMC_MEMCONFIGX_CHIP_COL_10 | DMC_MEMCONFIGX_CHIP_ROW_15 | DMC_MEMCONFIGX_CHIP_BANK_8, .prechconfig_tp_cnt = 0xff, .dpwrdn_cyc = 0xff, .dsref_cyc = 0xffff, .concontrol = DMC_CONCONTROL_DFI_INIT_START_DISABLE | DMC_CONCONTROL_TIMEOUT_LEVEL0 | DMC_CONCONTROL_RD_FETCH_DISABLE | DMC_CONCONTROL_EMPTY_DISABLE | DMC_CONCONTROL_AREF_EN_DISABLE | DMC_CONCONTROL_IO_PD_CON_DISABLE, .dmc_channels = 1, .chips_per_channel = 1, .chips_to_configure = 1, .send_zq_init = 1, .gate_leveling_enable = 1, .read_leveling_enable = 0, } #else { .mem_manuf = MEM_MANUF_ELPIDA, .mem_type = DDR_MODE_DDR3, .frequency_mhz = 800, .mpll_mdiv = 0xc8, .mpll_pdiv = 0x3, .mpll_sdiv = 0x0, .cpll_mdiv = 0xde, .cpll_pdiv = 0x4, .cpll_sdiv = 0x2, .gpll_mdiv = 0x215, .gpll_pdiv = 0xc, .gpll_sdiv = 0x1, .epll_mdiv = 0x60, .epll_pdiv = 0x3, .epll_sdiv = 0x3, .vpll_mdiv = 0x96, .vpll_pdiv = 0x3, .vpll_sdiv = 0x2, .bpll_mdiv = 0x64, .bpll_pdiv = 0x3, .bpll_sdiv = 0x0, .pclk_cdrex_ratio = 0x5, .direct_cmd_msr = { 0x00020018, 0x00030000, 0x00010042, 0x00000d70 }, .timing_ref = 0x000000bb, .timing_row = 0x8c36650e, .timing_data = 0x3630580b, .timing_power = 0x41000a44, .phy0_dqs = 0x08080808, .phy1_dqs = 0x08080808, .phy0_dq = 0x08080808, .phy1_dq = 0x08080808, .phy0_tFS = 0x4, .phy1_tFS = 0x4, .phy0_pulld_dqs = 0xf, .phy1_pulld_dqs = 0xf, .lpddr3_ctrl_phy_reset = 0x1, .ctrl_start_point = 0x10, .ctrl_inc = 0x10, .ctrl_start = 0x1, .ctrl_dll_on = 0x1, .ctrl_ref = 0x8, .ctrl_force = 0x1a, .ctrl_rdlat = 0x0b, .ctrl_bstlen = 0x08, .fp_resync = 0x8, .iv_size = 0x7, .dfi_init_start = 1, .aref_en = 1, .rd_fetch = 0x3, .zq_mode_dds = 0x7, .zq_mode_term = 0x1, .zq_mode_noterm = 0, /* * Dynamic Clock: Always Running * Memory Burst length: 8 * Number of chips: 1 * Memory Bus width: 32 bit * Memory Type: DDR3 * Additional Latancy for PLL: 0 Cycle */ .memcontrol = DMC_MEMCONTROL_CLK_STOP_DISABLE | DMC_MEMCONTROL_DPWRDN_DISABLE | DMC_MEMCONTROL_DPWRDN_ACTIVE_PRECHARGE | DMC_MEMCONTROL_TP_DISABLE | DMC_MEMCONTROL_DSREF_ENABLE | DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(0) | DMC_MEMCONTROL_MEM_TYPE_DDR3 | DMC_MEMCONTROL_MEM_WIDTH_32BIT | DMC_MEMCONTROL_NUM_CHIP_1 | DMC_MEMCONTROL_BL_8 | DMC_MEMCONTROL_PZQ_DISABLE | DMC_MEMCONTROL_MRR_BYTE_7_0, .memconfig = DMC_MEMCONFIGX_CHIP_MAP_INTERLEAVED | DMC_MEMCONFIGX_CHIP_COL_10 | DMC_MEMCONFIGX_CHIP_ROW_15 | DMC_MEMCONFIGX_CHIP_BANK_8, .membaseconfig0 = DMC_MEMBASECONFIG_VAL(0x40), .membaseconfig1 = DMC_MEMBASECONFIG_VAL(0x80), .prechconfig_tp_cnt = 0xff, .dpwrdn_cyc = 0xff, .dsref_cyc = 0xffff, .concontrol = DMC_CONCONTROL_DFI_INIT_START_DISABLE | DMC_CONCONTROL_TIMEOUT_LEVEL0 | DMC_CONCONTROL_RD_FETCH_DISABLE | DMC_CONCONTROL_EMPTY_DISABLE | DMC_CONCONTROL_AREF_EN_DISABLE | DMC_CONCONTROL_IO_PD_CON_DISABLE, .dmc_channels = 2, .chips_per_channel = 2, .chips_to_configure = 1, .send_zq_init = 1, .impedance = IMP_OUTPUT_DRV_30_OHM, .gate_leveling_enable = 0, }, { .mem_manuf = MEM_MANUF_SAMSUNG, .mem_type = DDR_MODE_DDR3, .frequency_mhz = 800, .mpll_mdiv = 0xc8, .mpll_pdiv = 0x3, .mpll_sdiv = 0x0, .cpll_mdiv = 0xde, .cpll_pdiv = 0x4, .cpll_sdiv = 0x2, .gpll_mdiv = 0x215, .gpll_pdiv = 0xc, .gpll_sdiv = 0x1, .epll_mdiv = 0x60, .epll_pdiv = 0x3, .epll_sdiv = 0x3, .vpll_mdiv = 0x96, .vpll_pdiv = 0x3, .vpll_sdiv = 0x2, .bpll_mdiv = 0x64, .bpll_pdiv = 0x3, .bpll_sdiv = 0x0, .pclk_cdrex_ratio = 0x5, .direct_cmd_msr = { 0x00020018, 0x00030000, 0x00010000, 0x00000d70 }, .timing_ref = 0x000000bb, .timing_row = 0x8c36650e, .timing_data = 0x3630580b, .timing_power = 0x41000a44, .phy0_dqs = 0x08080808, .phy1_dqs = 0x08080808, .phy0_dq = 0x08080808, .phy1_dq = 0x08080808, .phy0_tFS = 0x8, .phy1_tFS = 0x8, .phy0_pulld_dqs = 0xf, .phy1_pulld_dqs = 0xf, .lpddr3_ctrl_phy_reset = 0x1, .ctrl_start_point = 0x10, .ctrl_inc = 0x10, .ctrl_start = 0x1, .ctrl_dll_on = 0x1, .ctrl_ref = 0x8, .ctrl_force = 0x1a, .ctrl_rdlat = 0x0b, .ctrl_bstlen = 0x08, .fp_resync = 0x8, .iv_size = 0x7, .dfi_init_start = 1, .aref_en = 1, .rd_fetch = 0x3, .zq_mode_dds = 0x5, .zq_mode_term = 0x1, .zq_mode_noterm = 1, /* * Dynamic Clock: Always Running * Memory Burst length: 8 * Number of chips: 1 * Memory Bus width: 32 bit * Memory Type: DDR3 * Additional Latancy for PLL: 0 Cycle */ .memcontrol = DMC_MEMCONTROL_CLK_STOP_DISABLE | DMC_MEMCONTROL_DPWRDN_DISABLE | DMC_MEMCONTROL_DPWRDN_ACTIVE_PRECHARGE | DMC_MEMCONTROL_TP_DISABLE | DMC_MEMCONTROL_DSREF_ENABLE | DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(0) | DMC_MEMCONTROL_MEM_TYPE_DDR3 | DMC_MEMCONTROL_MEM_WIDTH_32BIT | DMC_MEMCONTROL_NUM_CHIP_1 | DMC_MEMCONTROL_BL_8 | DMC_MEMCONTROL_PZQ_DISABLE | DMC_MEMCONTROL_MRR_BYTE_7_0, .memconfig = DMC_MEMCONFIGX_CHIP_MAP_INTERLEAVED | DMC_MEMCONFIGX_CHIP_COL_10 | DMC_MEMCONFIGX_CHIP_ROW_15 | DMC_MEMCONFIGX_CHIP_BANK_8, .membaseconfig0 = DMC_MEMBASECONFIG_VAL(0x40), .membaseconfig1 = DMC_MEMBASECONFIG_VAL(0x80), .prechconfig_tp_cnt = 0xff, .dpwrdn_cyc = 0xff, .dsref_cyc = 0xffff, .concontrol = DMC_CONCONTROL_DFI_INIT_START_DISABLE | DMC_CONCONTROL_TIMEOUT_LEVEL0 | DMC_CONCONTROL_RD_FETCH_DISABLE | DMC_CONCONTROL_EMPTY_DISABLE | DMC_CONCONTROL_AREF_EN_DISABLE | DMC_CONCONTROL_IO_PD_CON_DISABLE, .dmc_channels = 2, .chips_per_channel = 2, .chips_to_configure = 1, .send_zq_init = 1, .impedance = IMP_OUTPUT_DRV_40_OHM, .gate_leveling_enable = 1, } #endif }; /** * Get the required memory type and speed (SPL version). * * In SPL we have no device tree, so we use the machine parameters * * @param mem_type Returns memory type * @param frequency_mhz Returns memory speed in MHz * @param arm_freq Returns ARM clock speed in MHz * @param mem_manuf Return Memory Manufacturer name */ static void clock_get_mem_selection(enum ddr_mode *mem_type, unsigned *frequency_mhz, unsigned *arm_freq, enum mem_manuf *mem_manuf) { struct spl_machine_param *params; params = spl_get_machine_params(); *mem_type = params->mem_type; *frequency_mhz = params->frequency_mhz; *arm_freq = params->arm_freq_mhz; *mem_manuf = params->mem_manuf; } /* Get the ratios for setting ARM clock */ struct arm_clk_ratios *get_arm_ratios(void) { struct arm_clk_ratios *arm_ratio; enum ddr_mode mem_type; enum mem_manuf mem_manuf; unsigned frequency_mhz, arm_freq; int i; clock_get_mem_selection(&mem_type, &frequency_mhz, &arm_freq, &mem_manuf); for (i = 0, arm_ratio = arm_clk_ratios; i < ARRAY_SIZE(arm_clk_ratios); i++, arm_ratio++) { if (arm_ratio->arm_freq_mhz == arm_freq) return arm_ratio; } /* will hang if failed to find clock ratio */ while (1) ; return NULL; } struct mem_timings *clock_get_mem_timings(void) { struct mem_timings *mem; enum ddr_mode mem_type; enum mem_manuf mem_manuf; unsigned frequency_mhz, arm_freq; int i; clock_get_mem_selection(&mem_type, &frequency_mhz, &arm_freq, &mem_manuf); for (i = 0, mem = mem_timings; i < ARRAY_SIZE(mem_timings); i++, mem++) { if (mem->mem_type == mem_type && mem->frequency_mhz == frequency_mhz && mem->mem_manuf == mem_manuf) return mem; } /* will hang if failed to find memory timings */ while (1) ; return NULL; } static void exynos5250_system_clock_init(void) { struct exynos5_clock *clk = (struct exynos5_clock *)samsung_get_base_clock(); struct mem_timings *mem; struct arm_clk_ratios *arm_clk_ratio; u32 val, tmp; mem = clock_get_mem_timings(); arm_clk_ratio = get_arm_ratios(); clrbits_le32(&clk->src_cpu, MUX_APLL_SEL_MASK); do { val = readl(&clk->mux_stat_cpu); } while ((val | MUX_APLL_SEL_MASK) != val); clrbits_le32(&clk->src_core1, MUX_MPLL_SEL_MASK); do { val = readl(&clk->mux_stat_core1); } while ((val | MUX_MPLL_SEL_MASK) != val); clrbits_le32(&clk->src_top2, MUX_CPLL_SEL_MASK); clrbits_le32(&clk->src_top2, MUX_EPLL_SEL_MASK); clrbits_le32(&clk->src_top2, MUX_VPLL_SEL_MASK); clrbits_le32(&clk->src_top2, MUX_GPLL_SEL_MASK); tmp = MUX_CPLL_SEL_MASK | MUX_EPLL_SEL_MASK | MUX_VPLL_SEL_MASK | MUX_GPLL_SEL_MASK; do { val = readl(&clk->mux_stat_top2); } while ((val | tmp) != val); clrbits_le32(&clk->src_cdrex, MUX_BPLL_SEL_MASK); do { val = readl(&clk->mux_stat_cdrex); } while ((val | MUX_BPLL_SEL_MASK) != val); /* PLL locktime */ writel(mem->apll_pdiv * PLL_LOCK_FACTOR, &clk->apll_lock); writel(mem->mpll_pdiv * PLL_LOCK_FACTOR, &clk->mpll_lock); writel(mem->bpll_pdiv * PLL_LOCK_FACTOR, &clk->bpll_lock); writel(mem->cpll_pdiv * PLL_LOCK_FACTOR, &clk->cpll_lock); writel(mem->gpll_pdiv * PLL_X_LOCK_FACTOR, &clk->gpll_lock); writel(mem->epll_pdiv * PLL_X_LOCK_FACTOR, &clk->epll_lock); writel(mem->vpll_pdiv * PLL_X_LOCK_FACTOR, &clk->vpll_lock); writel(CLK_REG_DISABLE, &clk->pll_div2_sel); writel(MUX_HPM_SEL_MASK, &clk->src_cpu); do { val = readl(&clk->mux_stat_cpu); } while ((val | HPM_SEL_SCLK_MPLL) != val); val = arm_clk_ratio->arm2_ratio << 28 | arm_clk_ratio->apll_ratio << 24 | arm_clk_ratio->pclk_dbg_ratio << 20 | arm_clk_ratio->atb_ratio << 16 | arm_clk_ratio->periph_ratio << 12 | arm_clk_ratio->acp_ratio << 8 | arm_clk_ratio->cpud_ratio << 4 | arm_clk_ratio->arm_ratio; writel(val, &clk->div_cpu0); do { val = readl(&clk->div_stat_cpu0); } while (0 != val); writel(CLK_DIV_CPU1_VAL, &clk->div_cpu1); do { val = readl(&clk->div_stat_cpu1); } while (0 != val); /* Set APLL */ writel(APLL_CON1_VAL, &clk->apll_con1); val = set_pll(arm_clk_ratio->apll_mdiv, arm_clk_ratio->apll_pdiv, arm_clk_ratio->apll_sdiv); writel(val, &clk->apll_con0); while ((readl(&clk->apll_con0) & APLL_CON0_LOCKED) == 0) ; /* Set MPLL */ writel(MPLL_CON1_VAL, &clk->mpll_con1); val = set_pll(mem->mpll_mdiv, mem->mpll_pdiv, mem->mpll_sdiv); writel(val, &clk->mpll_con0); while ((readl(&clk->mpll_con0) & MPLL_CON0_LOCKED) == 0) ; /* Set BPLL */ writel(BPLL_CON1_VAL, &clk->bpll_con1); val = set_pll(mem->bpll_mdiv, mem->bpll_pdiv, mem->bpll_sdiv); writel(val, &clk->bpll_con0); while ((readl(&clk->bpll_con0) & BPLL_CON0_LOCKED) == 0) ; /* Set CPLL */ writel(CPLL_CON1_VAL, &clk->cpll_con1); val = set_pll(mem->cpll_mdiv, mem->cpll_pdiv, mem->cpll_sdiv); writel(val, &clk->cpll_con0); while ((readl(&clk->cpll_con0) & CPLL_CON0_LOCKED) == 0) ; /* Set GPLL */ writel(GPLL_CON1_VAL, &clk->gpll_con1); val = set_pll(mem->gpll_mdiv, mem->gpll_pdiv, mem->gpll_sdiv); writel(val, &clk->gpll_con0); while ((readl(&clk->gpll_con0) & GPLL_CON0_LOCKED) == 0) ; /* Set EPLL */ writel(EPLL_CON2_VAL, &clk->epll_con2); writel(EPLL_CON1_VAL, &clk->epll_con1); val = set_pll(mem->epll_mdiv, mem->epll_pdiv, mem->epll_sdiv); writel(val, &clk->epll_con0); while ((readl(&clk->epll_con0) & EPLL_CON0_LOCKED) == 0) ; /* Set VPLL */ writel(VPLL_CON2_VAL, &clk->vpll_con2); writel(VPLL_CON1_VAL, &clk->vpll_con1); val = set_pll(mem->vpll_mdiv, mem->vpll_pdiv, mem->vpll_sdiv); writel(val, &clk->vpll_con0); while ((readl(&clk->vpll_con0) & VPLL_CON0_LOCKED) == 0) ; writel(CLK_SRC_CORE0_VAL, &clk->src_core0); writel(CLK_DIV_CORE0_VAL, &clk->div_core0); while (readl(&clk->div_stat_core0) != 0) ; writel(CLK_DIV_CORE1_VAL, &clk->div_core1); while (readl(&clk->div_stat_core1) != 0) ; writel(CLK_DIV_SYSRGT_VAL, &clk->div_sysrgt); while (readl(&clk->div_stat_sysrgt) != 0) ; writel(CLK_DIV_ACP_VAL, &clk->div_acp); while (readl(&clk->div_stat_acp) != 0) ; writel(CLK_DIV_SYSLFT_VAL, &clk->div_syslft); while (readl(&clk->div_stat_syslft) != 0) ; writel(CLK_SRC_TOP0_VAL, &clk->src_top0); writel(CLK_SRC_TOP1_VAL, &clk->src_top1); writel(TOP2_VAL, &clk->src_top2); writel(CLK_SRC_TOP3_VAL, &clk->src_top3); writel(CLK_DIV_TOP0_VAL, &clk->div_top0); while (readl(&clk->div_stat_top0)) ; writel(CLK_DIV_TOP1_VAL, &clk->div_top1); while (readl(&clk->div_stat_top1)) ; writel(CLK_SRC_LEX_VAL, &clk->src_lex); while (1) { val = readl(&clk->mux_stat_lex); if (val == (val | 1)) break; } writel(CLK_DIV_LEX_VAL, &clk->div_lex); while (readl(&clk->div_stat_lex)) ; writel(CLK_DIV_R0X_VAL, &clk->div_r0x); while (readl(&clk->div_stat_r0x)) ; writel(CLK_DIV_R0X_VAL, &clk->div_r0x); while (readl(&clk->div_stat_r0x)) ; writel(CLK_DIV_R1X_VAL, &clk->div_r1x); while (readl(&clk->div_stat_r1x)) ; writel(CLK_REG_DISABLE, &clk->src_cdrex); writel(CLK_DIV_CDREX_VAL, &clk->div_cdrex); while (readl(&clk->div_stat_cdrex)) ; val = readl(&clk->src_cpu); val |= CLK_SRC_CPU_VAL; writel(val, &clk->src_cpu); val = readl(&clk->src_top2); val |= CLK_SRC_TOP2_VAL; writel(val, &clk->src_top2); val = readl(&clk->src_core1); val |= CLK_SRC_CORE1_VAL; writel(val, &clk->src_core1); writel(CLK_SRC_FSYS0_VAL, &clk->src_fsys); writel(CLK_DIV_FSYS0_VAL, &clk->div_fsys0); while (readl(&clk->div_stat_fsys0)) ; writel(CLK_REG_DISABLE, &clk->clkout_cmu_cpu); writel(CLK_REG_DISABLE, &clk->clkout_cmu_core); writel(CLK_REG_DISABLE, &clk->clkout_cmu_acp); writel(CLK_REG_DISABLE, &clk->clkout_cmu_top); writel(CLK_REG_DISABLE, &clk->clkout_cmu_lex); writel(CLK_REG_DISABLE, &clk->clkout_cmu_r0x); writel(CLK_REG_DISABLE, &clk->clkout_cmu_r1x); writel(CLK_REG_DISABLE, &clk->clkout_cmu_cdrex); writel(CLK_SRC_PERIC0_VAL, &clk->src_peric0); writel(CLK_DIV_PERIC0_VAL, &clk->div_peric0); writel(CLK_SRC_PERIC1_VAL, &clk->src_peric1); writel(CLK_DIV_PERIC1_VAL, &clk->div_peric1); writel(CLK_DIV_PERIC2_VAL, &clk->div_peric2); writel(CLK_DIV_PERIC3_VAL, &clk->div_peric3); writel(SCLK_SRC_ISP_VAL, &clk->sclk_src_isp); writel(SCLK_DIV_ISP_VAL, &clk->sclk_div_isp); writel(CLK_DIV_ISP0_VAL, &clk->div_isp0); writel(CLK_DIV_ISP1_VAL, &clk->div_isp1); writel(CLK_DIV_ISP2_VAL, &clk->div_isp2); /* FIMD1 SRC CLK SELECTION */ writel(CLK_SRC_DISP1_0_VAL, &clk->src_disp1_0); val = MMC2_PRE_RATIO_VAL << MMC2_PRE_RATIO_OFFSET | MMC2_RATIO_VAL << MMC2_RATIO_OFFSET | MMC3_PRE_RATIO_VAL << MMC3_PRE_RATIO_OFFSET | MMC3_RATIO_VAL << MMC3_RATIO_OFFSET; writel(val, &clk->div_fsys2); } static void exynos5420_system_clock_init(void) { struct exynos5420_clock *clk = (struct exynos5420_clock *)samsung_get_base_clock(); struct mem_timings *mem; struct arm_clk_ratios *arm_clk_ratio; u32 val; mem = clock_get_mem_timings(); arm_clk_ratio = get_arm_ratios(); /* PLL locktime */ writel(arm_clk_ratio->apll_pdiv * PLL_LOCK_FACTOR, &clk->apll_lock); writel(mem->mpll_pdiv * PLL_LOCK_FACTOR, &clk->mpll_lock); writel(mem->bpll_pdiv * PLL_LOCK_FACTOR, &clk->bpll_lock); writel(mem->cpll_pdiv * PLL_LOCK_FACTOR, &clk->cpll_lock); writel(mem->dpll_pdiv * PLL_LOCK_FACTOR, &clk->dpll_lock); writel(mem->epll_pdiv * PLL_X_LOCK_FACTOR, &clk->epll_lock); writel(mem->vpll_pdiv * PLL_LOCK_FACTOR, &clk->vpll_lock); writel(mem->ipll_pdiv * PLL_LOCK_FACTOR, &clk->ipll_lock); writel(mem->spll_pdiv * PLL_LOCK_FACTOR, &clk->spll_lock); writel(mem->kpll_pdiv * PLL_LOCK_FACTOR, &clk->kpll_lock); writel(mem->rpll_pdiv * PLL_X_LOCK_FACTOR, &clk->rpll_lock); setbits_le32(&clk->src_cpu, MUX_HPM_SEL_MASK); writel(0, &clk->src_top6); writel(0, &clk->src_cdrex); writel(SRC_KFC_HPM_SEL, &clk->src_kfc); writel(HPM_RATIO, &clk->div_cpu1); writel(CLK_DIV_CPU0_VAL, &clk->div_cpu0); /* switch A15 clock source to OSC clock before changing APLL */ clrbits_le32(&clk->src_cpu, APLL_FOUT); /* Set APLL */ writel(APLL_CON1_VAL, &clk->apll_con1); val = set_pll(arm_clk_ratio->apll_mdiv, arm_clk_ratio->apll_pdiv, arm_clk_ratio->apll_sdiv); writel(val, &clk->apll_con0); while ((readl(&clk->apll_con0) & PLL_LOCKED) == 0) ; /* now it is safe to switch to APLL */ setbits_le32(&clk->src_cpu, APLL_FOUT); writel(SRC_KFC_HPM_SEL, &clk->src_kfc); writel(CLK_DIV_KFC_VAL, &clk->div_kfc0); /* switch A7 clock source to OSC clock before changing KPLL */ clrbits_le32(&clk->src_kfc, KPLL_FOUT); /* Set KPLL*/ writel(KPLL_CON1_VAL, &clk->kpll_con1); val = set_pll(mem->kpll_mdiv, mem->kpll_pdiv, mem->kpll_sdiv); writel(val, &clk->kpll_con0); while ((readl(&clk->kpll_con0) & PLL_LOCKED) == 0) ; /* now it is safe to switch to KPLL */ setbits_le32(&clk->src_kfc, KPLL_FOUT); /* Set MPLL */ writel(MPLL_CON1_VAL, &clk->mpll_con1); val = set_pll(mem->mpll_mdiv, mem->mpll_pdiv, mem->mpll_sdiv); writel(val, &clk->mpll_con0); while ((readl(&clk->mpll_con0) & PLL_LOCKED) == 0) ; /* Set DPLL */ writel(DPLL_CON1_VAL, &clk->dpll_con1); val = set_pll(mem->dpll_mdiv, mem->dpll_pdiv, mem->dpll_sdiv); writel(val, &clk->dpll_con0); while ((readl(&clk->dpll_con0) & PLL_LOCKED) == 0) ; /* Set EPLL */ writel(EPLL_CON2_VAL, &clk->epll_con2); writel(EPLL_CON1_VAL, &clk->epll_con1); val = set_pll(mem->epll_mdiv, mem->epll_pdiv, mem->epll_sdiv); writel(val, &clk->epll_con0); while ((readl(&clk->epll_con0) & PLL_LOCKED) == 0) ; /* Set CPLL */ writel(CPLL_CON1_VAL, &clk->cpll_con1); val = set_pll(mem->cpll_mdiv, mem->cpll_pdiv, mem->cpll_sdiv); writel(val, &clk->cpll_con0); while ((readl(&clk->cpll_con0) & PLL_LOCKED) == 0) ; /* Set IPLL */ writel(IPLL_CON1_VAL, &clk->ipll_con1); val = set_pll(mem->ipll_mdiv, mem->ipll_pdiv, mem->ipll_sdiv); writel(val, &clk->ipll_con0); while ((readl(&clk->ipll_con0) & PLL_LOCKED) == 0) ; /* Set VPLL */ writel(VPLL_CON1_VAL, &clk->vpll_con1); val = set_pll(mem->vpll_mdiv, mem->vpll_pdiv, mem->vpll_sdiv); writel(val, &clk->vpll_con0); while ((readl(&clk->vpll_con0) & PLL_LOCKED) == 0) ; /* Set BPLL */ writel(BPLL_CON1_VAL, &clk->bpll_con1); val = set_pll(mem->bpll_mdiv, mem->bpll_pdiv, mem->bpll_sdiv); writel(val, &clk->bpll_con0); while ((readl(&clk->bpll_con0) & PLL_LOCKED) == 0) ; /* Set SPLL */ writel(SPLL_CON1_VAL, &clk->spll_con1); val = set_pll(mem->spll_mdiv, mem->spll_pdiv, mem->spll_sdiv); writel(val, &clk->spll_con0); while ((readl(&clk->spll_con0) & PLL_LOCKED) == 0) ; /* Set RPLL */ writel(RPLL_CON2_VAL, &clk->rpll_con2); writel(RPLL_CON1_VAL, &clk->rpll_con1); val = set_pll(mem->rpll_mdiv, mem->rpll_pdiv, mem->rpll_sdiv); writel(val, &clk->rpll_con0); while ((readl(&clk->rpll_con0) & PLL_LOCKED) == 0) ; writel(CLK_DIV_CDREX0_VAL, &clk->div_cdrex0); writel(CLK_DIV_CDREX1_VAL, &clk->div_cdrex1); writel(CLK_SRC_TOP0_VAL, &clk->src_top0); writel(CLK_SRC_TOP1_VAL, &clk->src_top1); writel(CLK_SRC_TOP2_VAL, &clk->src_top2); writel(CLK_SRC_TOP7_VAL, &clk->src_top7); writel(CLK_DIV_TOP0_VAL, &clk->div_top0); writel(CLK_DIV_TOP1_VAL, &clk->div_top1); writel(CLK_DIV_TOP2_VAL, &clk->div_top2); writel(0, &clk->src_top10); writel(0, &clk->src_top11); writel(0, &clk->src_top12); writel(CLK_SRC_TOP3_VAL, &clk->src_top3); writel(CLK_SRC_TOP4_VAL, &clk->src_top4); writel(CLK_SRC_TOP5_VAL, &clk->src_top5); /* DISP1 BLK CLK SELECTION */ writel(CLK_SRC_DISP1_0_VAL, &clk->src_disp10); writel(CLK_DIV_DISP1_0_VAL, &clk->div_disp10); /* AUDIO BLK */ writel(AUDIO0_SEL_EPLL, &clk->src_mau); writel(DIV_MAU_VAL, &clk->div_mau); /* FSYS */ writel(CLK_SRC_FSYS0_VAL, &clk->src_fsys); writel(CLK_DIV_FSYS0_VAL, &clk->div_fsys0); writel(CLK_DIV_FSYS1_VAL, &clk->div_fsys1); writel(CLK_DIV_FSYS2_VAL, &clk->div_fsys2); writel(CLK_SRC_ISP_VAL, &clk->src_isp); writel(CLK_DIV_ISP0_VAL, &clk->div_isp0); writel(CLK_DIV_ISP1_VAL, &clk->div_isp1); writel(CLK_SRC_PERIC0_VAL, &clk->src_peric0); writel(CLK_SRC_PERIC1_VAL, &clk->src_peric1); writel(CLK_DIV_PERIC0_VAL, &clk->div_peric0); writel(CLK_DIV_PERIC1_VAL, &clk->div_peric1); writel(CLK_DIV_PERIC2_VAL, &clk->div_peric2); writel(CLK_DIV_PERIC3_VAL, &clk->div_peric3); writel(CLK_DIV_PERIC4_VAL, &clk->div_peric4); writel(CLK_DIV_CPERI1_VAL, &clk->div_cperi1); writel(CLK_DIV2_RATIO, &clk->clkdiv2_ratio); writel(CLK_DIV4_RATIO, &clk->clkdiv4_ratio); writel(CLK_DIV_G2D, &clk->div_g2d); writel(CLK_SRC_TOP6_VAL, &clk->src_top6); writel(CLK_SRC_CDREX_VAL, &clk->src_cdrex); writel(CLK_SRC_KFC_VAL, &clk->src_kfc); } void system_clock_init(void) { if (proid_is_exynos542x()) exynos5420_system_clock_init(); else exynos5250_system_clock_init(); } void clock_init_dp_clock(void) { struct exynos5_clock *clk = (struct exynos5_clock *)samsung_get_base_clock(); /* DP clock enable */ setbits_le32(&clk->gate_ip_disp1, CLK_GATE_DP1_ALLOW); /* We run DP at 267 Mhz */ setbits_le32(&clk->div_disp1_0, CLK_DIV_DISP1_0_FIMD1); } /* * Set clock divisor value for booting from EMMC. * Set DWMMC channel-0 clk div to operate mmc0 device at 50MHz. */ void emmc_boot_clk_div_set(void) { struct exynos5_clock *clk = (struct exynos5_clock *)samsung_get_base_clock(); unsigned int div_mmc; div_mmc = readl((unsigned int) &clk->div_fsys1) & ~FSYS1_MMC0_DIV_MASK; div_mmc |= FSYS1_MMC0_DIV_VAL; writel(div_mmc, (unsigned int) &clk->div_fsys1); }