diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-06-10 05:30:17 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-06-10 05:30:17 -0300 |
commit | d635711daa98be86d4c7fd01499c34f566b54ccb (patch) | |
tree | aa5cc3760a27c3d57146498cb82fa549547de06c /drivers/clk/shmobile/r8a7795-cpg-mssr.c | |
parent | c91265cd0efb83778f015b4d4b1129bd2cfd075e (diff) |
Linux-libre 4.6.2-gnu
Diffstat (limited to 'drivers/clk/shmobile/r8a7795-cpg-mssr.c')
-rw-r--r-- | drivers/clk/shmobile/r8a7795-cpg-mssr.c | 383 |
1 files changed, 0 insertions, 383 deletions
diff --git a/drivers/clk/shmobile/r8a7795-cpg-mssr.c b/drivers/clk/shmobile/r8a7795-cpg-mssr.c deleted file mode 100644 index 13e994772..000000000 --- a/drivers/clk/shmobile/r8a7795-cpg-mssr.c +++ /dev/null @@ -1,383 +0,0 @@ -/* - * r8a7795 Clock Pulse Generator / Module Standby and Software Reset - * - * Copyright (C) 2015 Glider bvba - * - * Based on clk-rcar-gen3.c - * - * Copyright (C) 2015 Renesas Electronics Corp. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - */ - -#include <linux/bug.h> -#include <linux/clk-provider.h> -#include <linux/device.h> -#include <linux/err.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/kernel.h> -#include <linux/of.h> - -#include <dt-bindings/clock/r8a7795-cpg-mssr.h> - -#include "renesas-cpg-mssr.h" - - -enum clk_ids { - /* Core Clock Outputs exported to DT */ - LAST_DT_CORE_CLK = R8A7795_CLK_OSC, - - /* External Input Clocks */ - CLK_EXTAL, - CLK_EXTALR, - - /* Internal Core Clocks */ - CLK_MAIN, - CLK_PLL0, - CLK_PLL1, - CLK_PLL2, - CLK_PLL3, - CLK_PLL4, - CLK_PLL1_DIV2, - CLK_PLL1_DIV4, - CLK_S0, - CLK_S1, - CLK_S2, - CLK_S3, - CLK_SDSRC, - CLK_SSPSRC, - - /* Module Clocks */ - MOD_CLK_BASE -}; - -enum r8a7795_clk_types { - CLK_TYPE_GEN3_MAIN = CLK_TYPE_CUSTOM, - CLK_TYPE_GEN3_PLL0, - CLK_TYPE_GEN3_PLL1, - CLK_TYPE_GEN3_PLL2, - CLK_TYPE_GEN3_PLL3, - CLK_TYPE_GEN3_PLL4, -}; - -static const struct cpg_core_clk r8a7795_core_clks[] __initconst = { - /* External Clock Inputs */ - DEF_INPUT("extal", CLK_EXTAL), - DEF_INPUT("extalr", CLK_EXTALR), - - /* Internal Core Clocks */ - DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL), - DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN3_PLL0, CLK_MAIN), - DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN), - DEF_BASE(".pll2", CLK_PLL2, CLK_TYPE_GEN3_PLL2, CLK_MAIN), - DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN), - DEF_BASE(".pll4", CLK_PLL4, CLK_TYPE_GEN3_PLL4, CLK_MAIN), - - DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1), - DEF_FIXED(".pll1_div4", CLK_PLL1_DIV4, CLK_PLL1_DIV2, 2, 1), - DEF_FIXED(".s0", CLK_S0, CLK_PLL1_DIV2, 2, 1), - DEF_FIXED(".s1", CLK_S1, CLK_PLL1_DIV2, 3, 1), - DEF_FIXED(".s2", CLK_S2, CLK_PLL1_DIV2, 4, 1), - DEF_FIXED(".s3", CLK_S3, CLK_PLL1_DIV2, 6, 1), - - /* Core Clock Outputs */ - DEF_FIXED("ztr", R8A7795_CLK_ZTR, CLK_PLL1_DIV2, 6, 1), - DEF_FIXED("ztrd2", R8A7795_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1), - DEF_FIXED("zt", R8A7795_CLK_ZT, CLK_PLL1_DIV2, 4, 1), - DEF_FIXED("zx", R8A7795_CLK_ZX, CLK_PLL1_DIV2, 2, 1), - DEF_FIXED("s0d1", R8A7795_CLK_S0D1, CLK_S0, 1, 1), - DEF_FIXED("s0d4", R8A7795_CLK_S0D4, CLK_S0, 4, 1), - DEF_FIXED("s1d1", R8A7795_CLK_S1D1, CLK_S1, 1, 1), - DEF_FIXED("s1d2", R8A7795_CLK_S1D2, CLK_S1, 2, 1), - DEF_FIXED("s1d4", R8A7795_CLK_S1D4, CLK_S1, 4, 1), - DEF_FIXED("s2d1", R8A7795_CLK_S2D1, CLK_S2, 1, 1), - DEF_FIXED("s2d2", R8A7795_CLK_S2D2, CLK_S2, 2, 1), - DEF_FIXED("s2d4", R8A7795_CLK_S2D4, CLK_S2, 4, 1), - DEF_FIXED("s3d1", R8A7795_CLK_S3D1, CLK_S3, 1, 1), - DEF_FIXED("s3d2", R8A7795_CLK_S3D2, CLK_S3, 2, 1), - DEF_FIXED("s3d4", R8A7795_CLK_S3D4, CLK_S3, 4, 1), - DEF_FIXED("cl", R8A7795_CLK_CL, CLK_PLL1_DIV2, 48, 1), - DEF_FIXED("cp", R8A7795_CLK_CP, CLK_EXTAL, 2, 1), - - DEF_DIV6P1("mso", R8A7795_CLK_MSO, CLK_PLL1_DIV4, 0x014), - DEF_DIV6P1("hdmi", R8A7795_CLK_HDMI, CLK_PLL1_DIV2, 0x250), -}; - -static const struct mssr_mod_clk r8a7795_mod_clks[] __initconst = { - DEF_MOD("scif5", 202, R8A7795_CLK_S3D4), - DEF_MOD("scif4", 203, R8A7795_CLK_S3D4), - DEF_MOD("scif3", 204, R8A7795_CLK_S3D4), - DEF_MOD("scif1", 206, R8A7795_CLK_S3D4), - DEF_MOD("scif0", 207, R8A7795_CLK_S3D4), - DEF_MOD("msiof3", 208, R8A7795_CLK_MSO), - DEF_MOD("msiof2", 209, R8A7795_CLK_MSO), - DEF_MOD("msiof1", 210, R8A7795_CLK_MSO), - DEF_MOD("msiof0", 211, R8A7795_CLK_MSO), - DEF_MOD("sys-dmac2", 217, R8A7795_CLK_S3D1), - DEF_MOD("sys-dmac1", 218, R8A7795_CLK_S3D1), - DEF_MOD("sys-dmac0", 219, R8A7795_CLK_S3D1), - DEF_MOD("scif2", 310, R8A7795_CLK_S3D4), - DEF_MOD("pcie1", 318, R8A7795_CLK_S3D1), - DEF_MOD("pcie0", 319, R8A7795_CLK_S3D1), - DEF_MOD("intc-ap", 408, R8A7795_CLK_S3D1), - DEF_MOD("audmac0", 502, R8A7795_CLK_S3D4), - DEF_MOD("audmac1", 501, R8A7795_CLK_S3D4), - DEF_MOD("hscif4", 516, R8A7795_CLK_S3D1), - DEF_MOD("hscif3", 517, R8A7795_CLK_S3D1), - DEF_MOD("hscif2", 518, R8A7795_CLK_S3D1), - DEF_MOD("hscif1", 519, R8A7795_CLK_S3D1), - DEF_MOD("hscif0", 520, R8A7795_CLK_S3D1), - DEF_MOD("vspd3", 620, R8A7795_CLK_S2D1), - DEF_MOD("vspd2", 621, R8A7795_CLK_S2D1), - DEF_MOD("vspd1", 622, R8A7795_CLK_S2D1), - DEF_MOD("vspd0", 623, R8A7795_CLK_S2D1), - DEF_MOD("vspbc", 624, R8A7795_CLK_S2D1), - DEF_MOD("vspbd", 626, R8A7795_CLK_S2D1), - DEF_MOD("vspi2", 629, R8A7795_CLK_S2D1), - DEF_MOD("vspi1", 630, R8A7795_CLK_S2D1), - DEF_MOD("vspi0", 631, R8A7795_CLK_S2D1), - DEF_MOD("ehci2", 701, R8A7795_CLK_S3D4), - DEF_MOD("ehci1", 702, R8A7795_CLK_S3D4), - DEF_MOD("ehci0", 703, R8A7795_CLK_S3D4), - DEF_MOD("hsusb", 704, R8A7795_CLK_S3D4), - DEF_MOD("du3", 721, R8A7795_CLK_S2D1), - DEF_MOD("du2", 722, R8A7795_CLK_S2D1), - DEF_MOD("du1", 723, R8A7795_CLK_S2D1), - DEF_MOD("du0", 724, R8A7795_CLK_S2D1), - DEF_MOD("hdmi1", 728, R8A7795_CLK_HDMI), - DEF_MOD("hdmi0", 729, R8A7795_CLK_HDMI), - DEF_MOD("etheravb", 812, R8A7795_CLK_S3D2), - DEF_MOD("sata0", 815, R8A7795_CLK_S3D2), - DEF_MOD("gpio7", 905, R8A7795_CLK_CP), - DEF_MOD("gpio6", 906, R8A7795_CLK_CP), - DEF_MOD("gpio5", 907, R8A7795_CLK_CP), - DEF_MOD("gpio4", 908, R8A7795_CLK_CP), - DEF_MOD("gpio3", 909, R8A7795_CLK_CP), - DEF_MOD("gpio2", 910, R8A7795_CLK_CP), - DEF_MOD("gpio1", 911, R8A7795_CLK_CP), - DEF_MOD("gpio0", 912, R8A7795_CLK_CP), - DEF_MOD("i2c6", 918, R8A7795_CLK_S3D2), - DEF_MOD("i2c5", 919, R8A7795_CLK_S3D2), - DEF_MOD("i2c4", 927, R8A7795_CLK_S3D2), - DEF_MOD("i2c3", 928, R8A7795_CLK_S3D2), - DEF_MOD("i2c2", 929, R8A7795_CLK_S3D2), - DEF_MOD("i2c1", 930, R8A7795_CLK_S3D2), - DEF_MOD("i2c0", 931, R8A7795_CLK_S3D2), - DEF_MOD("ssi-all", 1005, R8A7795_CLK_S3D4), - DEF_MOD("ssi9", 1006, MOD_CLK_ID(1005)), - DEF_MOD("ssi8", 1007, MOD_CLK_ID(1005)), - DEF_MOD("ssi7", 1008, MOD_CLK_ID(1005)), - DEF_MOD("ssi6", 1009, MOD_CLK_ID(1005)), - DEF_MOD("ssi5", 1010, MOD_CLK_ID(1005)), - DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)), - DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)), - DEF_MOD("ssi2", 1013, MOD_CLK_ID(1005)), - DEF_MOD("ssi1", 1014, MOD_CLK_ID(1005)), - DEF_MOD("ssi0", 1015, MOD_CLK_ID(1005)), - DEF_MOD("scu-all", 1017, R8A7795_CLK_S3D4), - DEF_MOD("scu-dvc1", 1018, MOD_CLK_ID(1017)), - DEF_MOD("scu-dvc0", 1019, MOD_CLK_ID(1017)), - DEF_MOD("scu-ctu1-mix1", 1020, MOD_CLK_ID(1017)), - DEF_MOD("scu-ctu0-mix0", 1021, MOD_CLK_ID(1017)), - DEF_MOD("scu-src9", 1022, MOD_CLK_ID(1017)), - DEF_MOD("scu-src8", 1023, MOD_CLK_ID(1017)), - DEF_MOD("scu-src7", 1024, MOD_CLK_ID(1017)), - DEF_MOD("scu-src6", 1025, MOD_CLK_ID(1017)), - DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)), - DEF_MOD("scu-src4", 1027, MOD_CLK_ID(1017)), - DEF_MOD("scu-src3", 1028, MOD_CLK_ID(1017)), - DEF_MOD("scu-src2", 1029, MOD_CLK_ID(1017)), - DEF_MOD("scu-src1", 1030, MOD_CLK_ID(1017)), - DEF_MOD("scu-src0", 1031, MOD_CLK_ID(1017)), -}; - -static const unsigned int r8a7795_crit_mod_clks[] __initconst = { - MOD_CLK_ID(408), /* INTC-AP (GIC) */ -}; - - -#define CPG_PLL0CR 0x00d8 -#define CPG_PLL2CR 0x002c -#define CPG_PLL4CR 0x01f4 - -/* - * CPG Clock Data - */ - -/* - * MD EXTAL PLL0 PLL1 PLL2 PLL3 PLL4 - * 14 13 19 17 (MHz) - *------------------------------------------------------------------- - * 0 0 0 0 16.66 x 1 x180 x192 x144 x192 x144 - * 0 0 0 1 16.66 x 1 x180 x192 x144 x128 x144 - * 0 0 1 0 Prohibited setting - * 0 0 1 1 16.66 x 1 x180 x192 x144 x192 x144 - * 0 1 0 0 20 x 1 x150 x160 x120 x160 x120 - * 0 1 0 1 20 x 1 x150 x160 x120 x106 x120 - * 0 1 1 0 Prohibited setting - * 0 1 1 1 20 x 1 x150 x160 x120 x160 x120 - * 1 0 0 0 25 x 1 x120 x128 x96 x128 x96 - * 1 0 0 1 25 x 1 x120 x128 x96 x84 x96 - * 1 0 1 0 Prohibited setting - * 1 0 1 1 25 x 1 x120 x128 x96 x128 x96 - * 1 1 0 0 33.33 / 2 x180 x192 x144 x192 x144 - * 1 1 0 1 33.33 / 2 x180 x192 x144 x128 x144 - * 1 1 1 0 Prohibited setting - * 1 1 1 1 33.33 / 2 x180 x192 x144 x192 x144 - */ -#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 11) | \ - (((md) & BIT(13)) >> 11) | \ - (((md) & BIT(19)) >> 18) | \ - (((md) & BIT(17)) >> 17)) - -struct cpg_pll_config { - unsigned int extal_div; - unsigned int pll1_mult; - unsigned int pll3_mult; -}; - -static const struct cpg_pll_config cpg_pll_configs[16] __initconst = { - /* EXTAL div PLL1 mult PLL3 mult */ - { 1, 192, 192, }, - { 1, 192, 128, }, - { 0, /* Prohibited setting */ }, - { 1, 192, 192, }, - { 1, 160, 160, }, - { 1, 160, 106, }, - { 0, /* Prohibited setting */ }, - { 1, 160, 160, }, - { 1, 128, 128, }, - { 1, 128, 84, }, - { 0, /* Prohibited setting */ }, - { 1, 128, 128, }, - { 2, 192, 192, }, - { 2, 192, 128, }, - { 0, /* Prohibited setting */ }, - { 2, 192, 192, }, -}; - -static const struct cpg_pll_config *cpg_pll_config __initdata; - -static -struct clk * __init r8a7795_cpg_clk_register(struct device *dev, - const struct cpg_core_clk *core, - const struct cpg_mssr_info *info, - struct clk **clks, - void __iomem *base) -{ - const struct clk *parent; - unsigned int mult = 1; - unsigned int div = 1; - u32 value; - - parent = clks[core->parent]; - if (IS_ERR(parent)) - return ERR_CAST(parent); - - switch (core->type) { - case CLK_TYPE_GEN3_MAIN: - div = cpg_pll_config->extal_div; - break; - - case CLK_TYPE_GEN3_PLL0: - /* - * PLL0 is a configurable multiplier clock. Register it as a - * fixed factor clock for now as there's no generic multiplier - * clock implementation and we currently have no need to change - * the multiplier value. - */ - value = readl(base + CPG_PLL0CR); - mult = (((value >> 24) & 0x7f) + 1) * 2; - break; - - case CLK_TYPE_GEN3_PLL1: - mult = cpg_pll_config->pll1_mult; - break; - - case CLK_TYPE_GEN3_PLL2: - /* - * PLL2 is a configurable multiplier clock. Register it as a - * fixed factor clock for now as there's no generic multiplier - * clock implementation and we currently have no need to change - * the multiplier value. - */ - value = readl(base + CPG_PLL2CR); - mult = (((value >> 24) & 0x7f) + 1) * 2; - break; - - case CLK_TYPE_GEN3_PLL3: - mult = cpg_pll_config->pll3_mult; - break; - - case CLK_TYPE_GEN3_PLL4: - /* - * PLL4 is a configurable multiplier clock. Register it as a - * fixed factor clock for now as there's no generic multiplier - * clock implementation and we currently have no need to change - * the multiplier value. - */ - value = readl(base + CPG_PLL4CR); - mult = (((value >> 24) & 0x7f) + 1) * 2; - break; - - default: - return ERR_PTR(-EINVAL); - } - - return clk_register_fixed_factor(NULL, core->name, - __clk_get_name(parent), 0, mult, div); -} - -/* - * Reset register definitions. - */ -#define MODEMR 0xe6160060 - -static u32 rcar_gen3_read_mode_pins(void) -{ - void __iomem *modemr = ioremap_nocache(MODEMR, 4); - u32 mode; - - BUG_ON(!modemr); - mode = ioread32(modemr); - iounmap(modemr); - - return mode; -} - -static int __init r8a7795_cpg_mssr_init(struct device *dev) -{ - u32 cpg_mode = rcar_gen3_read_mode_pins(); - - cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)]; - if (!cpg_pll_config->extal_div) { - dev_err(dev, "Prohibited setting (cpg_mode=0x%x)\n", cpg_mode); - return -EINVAL; - } - - return 0; -} - -const struct cpg_mssr_info r8a7795_cpg_mssr_info __initconst = { - /* Core Clocks */ - .core_clks = r8a7795_core_clks, - .num_core_clks = ARRAY_SIZE(r8a7795_core_clks), - .last_dt_core_clk = LAST_DT_CORE_CLK, - .num_total_core_clks = MOD_CLK_BASE, - - /* Module Clocks */ - .mod_clks = r8a7795_mod_clks, - .num_mod_clks = ARRAY_SIZE(r8a7795_mod_clks), - .num_hw_mod_clks = 12 * 32, - - /* Critical Module Clocks */ - .crit_mod_clks = r8a7795_crit_mod_clks, - .num_crit_mod_clks = ARRAY_SIZE(r8a7795_crit_mod_clks), - - /* Callbacks */ - .init = r8a7795_cpg_mssr_init, - .cpg_clk_register = r8a7795_cpg_clk_register, -}; |