diff options
Diffstat (limited to 'drivers/clk/samsung/clk-exynos3250.c')
| -rw-r--r-- | drivers/clk/samsung/clk-exynos3250.c | 75 |
1 files changed, 39 insertions, 36 deletions
diff --git a/drivers/clk/samsung/clk-exynos3250.c b/drivers/clk/samsung/clk-exynos3250.c index 0e9a41a4cac8..84564ec4c8ec 100644 --- a/drivers/clk/samsung/clk-exynos3250.c +++ b/drivers/clk/samsung/clk-exynos3250.c @@ -1,18 +1,14 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2014 Samsung Electronics Co., Ltd. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * Common Clock Framework support for Exynos3250 SoC. */ #include <linux/clk-provider.h> -#include <linux/of.h> -#include <linux/of_address.h> +#include <linux/io.h> +#include <linux/mod_devicetable.h> #include <linux/platform_device.h> - #include <dt-bindings/clock/exynos3250.h> #include "clk.h" @@ -102,6 +98,11 @@ #define PWR_CTRL1_USE_CORE1_WFI (1 << 1) #define PWR_CTRL1_USE_CORE0_WFI (1 << 0) +/* NOTE: Must be equal to the last clock ID increased by one */ +#define CLKS_NR_MAIN (CLK_SCLK_MMC2 + 1) +#define CLKS_NR_DMC (CLK_DIV_DMCD + 1) +#define CLKS_NR_ISP (CLK_SCLK_MPWM_ISP + 1) + static const unsigned long exynos3250_cmu_clk_regs[] __initconst = { SRC_LEFTBUS, DIV_LEFTBUS, @@ -257,7 +258,7 @@ static const struct samsung_mux_clock mux_clks[] __initconst = { /* SRC_TOP0 */ MUX(CLK_MOUT_EBI, "mout_ebi", mout_ebi_p, SRC_TOP0, 28, 1), - MUX(CLK_MOUT_ACLK_200, "mout_aclk_200", group_div_mpll_pre_p,SRC_TOP0, 24, 1), + MUX(CLK_MOUT_ACLK_200, "mout_aclk_200", group_div_mpll_pre_p, SRC_TOP0, 24, 1), MUX(CLK_MOUT_ACLK_160, "mout_aclk_160", group_div_mpll_pre_p, SRC_TOP0, 20, 1), MUX(CLK_MOUT_ACLK_100, "mout_aclk_100", group_div_mpll_pre_p, SRC_TOP0, 16, 1), MUX(CLK_MOUT_ACLK_266_1, "mout_aclk_266_1", mout_aclk_266_1_p, SRC_TOP0, 14, 1), @@ -750,6 +751,31 @@ static const struct samsung_pll_clock exynos3250_plls[] __initconst = { UPLL_LOCK, UPLL_CON0, exynos3250_pll_rates), }; +#define E3250_CPU_DIV0(apll, pclk_dbg, atb, corem) \ + (((apll) << 24) | ((pclk_dbg) << 20) | ((atb) << 16) | \ + ((corem) << 4)) +#define E3250_CPU_DIV1(hpm, copy) \ + (((hpm) << 4) | ((copy) << 0)) + +static const struct exynos_cpuclk_cfg_data e3250_armclk_d[] __initconst = { + { 1000000, E3250_CPU_DIV0(1, 7, 4, 1), E3250_CPU_DIV1(7, 7), }, + { 900000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, + { 800000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, + { 700000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, + { 600000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, + { 500000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, + { 400000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, + { 300000, E3250_CPU_DIV0(1, 5, 3, 1), E3250_CPU_DIV1(7, 7), }, + { 200000, E3250_CPU_DIV0(1, 3, 3, 1), E3250_CPU_DIV1(7, 7), }, + { 100000, E3250_CPU_DIV0(1, 1, 1, 1), E3250_CPU_DIV1(7, 7), }, + { 0 }, +}; + +static const struct samsung_cpu_clock exynos3250_cpu_clks[] __initconst = { + CPU_CLK(CLK_ARM_CLK, "armclk", CLK_MOUT_APLL, CLK_MOUT_MPLL_USER_C, + CLK_CPU_HAS_DIV1, 0x14000, CPUCLK_LAYOUT_E4210, e3250_armclk_d), +}; + static void __init exynos3_core_down_clock(void __iomem *reg_base) { unsigned int tmp; @@ -782,31 +808,13 @@ static const struct samsung_cmu_info cmu_info __initconst = { .nr_gate_clks = ARRAY_SIZE(gate_clks), .fixed_factor_clks = fixed_factor_clks, .nr_fixed_factor_clks = ARRAY_SIZE(fixed_factor_clks), - .nr_clk_ids = CLK_NR_CLKS, + .cpu_clks = exynos3250_cpu_clks, + .nr_cpu_clks = ARRAY_SIZE(exynos3250_cpu_clks), + .nr_clk_ids = CLKS_NR_MAIN, .clk_regs = exynos3250_cmu_clk_regs, .nr_clk_regs = ARRAY_SIZE(exynos3250_cmu_clk_regs), }; -#define E3250_CPU_DIV0(apll, pclk_dbg, atb, corem) \ - (((apll) << 24) | ((pclk_dbg) << 20) | ((atb) << 16) | \ - ((corem) << 4)) -#define E3250_CPU_DIV1(hpm, copy) \ - (((hpm) << 4) | ((copy) << 0)) - -static const struct exynos_cpuclk_cfg_data e3250_armclk_d[] __initconst = { - { 1000000, E3250_CPU_DIV0(1, 7, 4, 1), E3250_CPU_DIV1(7, 7), }, - { 900000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, - { 800000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, - { 700000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, - { 600000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, - { 500000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, - { 400000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, - { 300000, E3250_CPU_DIV0(1, 5, 3, 1), E3250_CPU_DIV1(7, 7), }, - { 200000, E3250_CPU_DIV0(1, 3, 3, 1), E3250_CPU_DIV1(7, 7), }, - { 100000, E3250_CPU_DIV0(1, 1, 1, 1), E3250_CPU_DIV1(7, 7), }, - { 0 }, -}; - static void __init exynos3250_cmu_init(struct device_node *np) { struct samsung_clk_provider *ctx; @@ -815,11 +823,6 @@ static void __init exynos3250_cmu_init(struct device_node *np) if (!ctx) return; - exynos_register_cpu_clock(ctx, CLK_ARM_CLK, "armclk", - mout_core_p[0], mout_core_p[1], 0x14200, - e3250_armclk_d, ARRAY_SIZE(e3250_armclk_d), - CLK_CPU_HAS_DIV1); - exynos3_core_down_clock(ctx->reg_base); } CLK_OF_DECLARE(exynos3250_cmu, "samsung,exynos3250-cmu", exynos3250_cmu_init); @@ -923,7 +926,7 @@ static const struct samsung_cmu_info dmc_cmu_info __initconst = { .nr_mux_clks = ARRAY_SIZE(dmc_mux_clks), .div_clks = dmc_div_clks, .nr_div_clks = ARRAY_SIZE(dmc_div_clks), - .nr_clk_ids = NR_CLKS_DMC, + .nr_clk_ids = CLKS_NR_DMC, .clk_regs = exynos3250_cmu_dmc_clk_regs, .nr_clk_regs = ARRAY_SIZE(exynos3250_cmu_dmc_clk_regs), }; @@ -1067,7 +1070,7 @@ static const struct samsung_cmu_info isp_cmu_info __initconst = { .nr_div_clks = ARRAY_SIZE(isp_div_clks), .gate_clks = isp_gate_clks, .nr_gate_clks = ARRAY_SIZE(isp_gate_clks), - .nr_clk_ids = NR_CLKS_ISP, + .nr_clk_ids = CLKS_NR_ISP, }; static int __init exynos3250_cmu_isp_probe(struct platform_device *pdev) |