diff options
Diffstat (limited to 'drivers/clk/renesas/r8a7745-cpg-mssr.c')
| -rw-r--r-- | drivers/clk/renesas/r8a7745-cpg-mssr.c | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/drivers/clk/renesas/r8a7745-cpg-mssr.c b/drivers/clk/renesas/r8a7745-cpg-mssr.c new file mode 100644 index 000000000..4b0a9243b --- /dev/null +++ b/drivers/clk/renesas/r8a7745-cpg-mssr.c @@ -0,0 +1,249 @@ +/* + * r8a7745 Clock Pulse Generator / Module Standby and Software Reset + * + * Copyright (C) 2016 Cogent Embedded Inc. + * + * 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; of the License. + */ + +#include <linux/device.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/soc/renesas/rcar-rst.h> + +#include <dt-bindings/clock/r8a7745-cpg-mssr.h> + +#include "renesas-cpg-mssr.h" +#include "rcar-gen2-cpg.h" + +enum clk_ids { + /* Core Clock Outputs exported to DT */ + LAST_DT_CORE_CLK = R8A7745_CLK_OSC, + + /* External Input Clocks */ + CLK_EXTAL, + CLK_USB_EXTAL, + + /* Internal Core Clocks */ + CLK_MAIN, + CLK_PLL0, + CLK_PLL1, + CLK_PLL3, + CLK_PLL1_DIV2, + + /* Module Clocks */ + MOD_CLK_BASE +}; + +static const struct cpg_core_clk r8a7745_core_clks[] __initconst = { + /* External Clock Inputs */ + DEF_INPUT("extal", CLK_EXTAL), + DEF_INPUT("usb_extal", CLK_USB_EXTAL), + + /* Internal Core Clocks */ + DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN2_MAIN, CLK_EXTAL), + DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN2_PLL0, CLK_MAIN), + DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN2_PLL1, CLK_MAIN), + DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN2_PLL3, CLK_MAIN), + + DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1), + + /* Core Clock Outputs */ + DEF_BASE("sdh", R8A7745_CLK_SDH, CLK_TYPE_GEN2_SDH, CLK_PLL1), + DEF_BASE("sd0", R8A7745_CLK_SD0, CLK_TYPE_GEN2_SD0, CLK_PLL1), + DEF_BASE("qspi", R8A7745_CLK_QSPI, CLK_TYPE_GEN2_QSPI, CLK_PLL1_DIV2), + DEF_BASE("rcan", R8A7745_CLK_RCAN, CLK_TYPE_GEN2_RCAN, CLK_USB_EXTAL), + + DEF_FIXED("z2", R8A7745_CLK_Z2, CLK_PLL0, 1, 1), + DEF_FIXED("zg", R8A7745_CLK_ZG, CLK_PLL1, 6, 1), + DEF_FIXED("zx", R8A7745_CLK_ZX, CLK_PLL1, 3, 1), + DEF_FIXED("zs", R8A7745_CLK_ZS, CLK_PLL1, 6, 1), + DEF_FIXED("hp", R8A7745_CLK_HP, CLK_PLL1, 12, 1), + DEF_FIXED("b", R8A7745_CLK_B, CLK_PLL1, 12, 1), + DEF_FIXED("lb", R8A7745_CLK_LB, CLK_PLL1, 24, 1), + DEF_FIXED("p", R8A7745_CLK_P, CLK_PLL1, 24, 1), + DEF_FIXED("cl", R8A7745_CLK_CL, CLK_PLL1, 48, 1), + DEF_FIXED("cp", R8A7745_CLK_CP, CLK_PLL1, 48, 1), + DEF_FIXED("m2", R8A7745_CLK_M2, CLK_PLL1, 8, 1), + DEF_FIXED("zb3", R8A7745_CLK_ZB3, CLK_PLL3, 4, 1), + DEF_FIXED("zb3d2", R8A7745_CLK_ZB3D2, CLK_PLL3, 8, 1), + DEF_FIXED("ddr", R8A7745_CLK_DDR, CLK_PLL3, 8, 1), + DEF_FIXED("mp", R8A7745_CLK_MP, CLK_PLL1_DIV2, 15, 1), + DEF_FIXED("cpex", R8A7745_CLK_CPEX, CLK_EXTAL, 2, 1), + DEF_FIXED("r", R8A7745_CLK_R, CLK_PLL1, 49152, 1), + DEF_FIXED("osc", R8A7745_CLK_OSC, CLK_PLL1, 12288, 1), + + DEF_DIV6P1("sd2", R8A7745_CLK_SD2, CLK_PLL1_DIV2, 0x078), + DEF_DIV6P1("sd3", R8A7745_CLK_SD3, CLK_PLL1_DIV2, 0x26c), + DEF_DIV6P1("mmc0", R8A7745_CLK_MMC0, CLK_PLL1_DIV2, 0x240), +}; + +static const struct mssr_mod_clk r8a7745_mod_clks[] __initconst = { + DEF_MOD("msiof0", 0, R8A7745_CLK_MP), + DEF_MOD("vcp0", 101, R8A7745_CLK_ZS), + DEF_MOD("vpc0", 103, R8A7745_CLK_ZS), + DEF_MOD("tmu1", 111, R8A7745_CLK_P), + DEF_MOD("3dg", 112, R8A7745_CLK_ZG), + DEF_MOD("2d-dmac", 115, R8A7745_CLK_ZS), + DEF_MOD("fdp1-0", 119, R8A7745_CLK_ZS), + DEF_MOD("tmu3", 121, R8A7745_CLK_P), + DEF_MOD("tmu2", 122, R8A7745_CLK_P), + DEF_MOD("cmt0", 124, R8A7745_CLK_R), + DEF_MOD("tmu0", 125, R8A7745_CLK_CP), + DEF_MOD("vsp1du0", 128, R8A7745_CLK_ZS), + DEF_MOD("vsp1-sy", 131, R8A7745_CLK_ZS), + DEF_MOD("scifa2", 202, R8A7745_CLK_MP), + DEF_MOD("scifa1", 203, R8A7745_CLK_MP), + DEF_MOD("scifa0", 204, R8A7745_CLK_MP), + DEF_MOD("msiof2", 205, R8A7745_CLK_MP), + DEF_MOD("scifb0", 206, R8A7745_CLK_MP), + DEF_MOD("scifb1", 207, R8A7745_CLK_MP), + DEF_MOD("msiof1", 208, R8A7745_CLK_MP), + DEF_MOD("scifb2", 216, R8A7745_CLK_MP), + DEF_MOD("sys-dmac1", 218, R8A7745_CLK_ZS), + DEF_MOD("sys-dmac0", 219, R8A7745_CLK_ZS), + DEF_MOD("tpu0", 304, R8A7745_CLK_CP), + DEF_MOD("sdhi3", 311, R8A7745_CLK_SD3), + DEF_MOD("sdhi2", 312, R8A7745_CLK_SD2), + DEF_MOD("sdhi0", 314, R8A7745_CLK_SD0), + DEF_MOD("mmcif0", 315, R8A7745_CLK_MMC0), + DEF_MOD("iic0", 318, R8A7745_CLK_HP), + DEF_MOD("iic1", 323, R8A7745_CLK_HP), + DEF_MOD("cmt1", 329, R8A7745_CLK_R), + DEF_MOD("usbhs-dmac0", 330, R8A7745_CLK_HP), + DEF_MOD("usbhs-dmac1", 331, R8A7745_CLK_HP), + DEF_MOD("rwdt", 402, R8A7745_CLK_R), + DEF_MOD("irqc", 407, R8A7745_CLK_CP), + DEF_MOD("intc-sys", 408, R8A7745_CLK_ZS), + DEF_MOD("audio-dmac0", 502, R8A7745_CLK_HP), + DEF_MOD("pwm", 523, R8A7745_CLK_P), + DEF_MOD("usb-ehci", 703, R8A7745_CLK_MP), + DEF_MOD("usbhs", 704, R8A7745_CLK_HP), + DEF_MOD("hscif2", 713, R8A7745_CLK_ZS), + DEF_MOD("scif5", 714, R8A7745_CLK_P), + DEF_MOD("scif4", 715, R8A7745_CLK_P), + DEF_MOD("hscif1", 716, R8A7745_CLK_ZS), + DEF_MOD("hscif0", 717, R8A7745_CLK_ZS), + DEF_MOD("scif3", 718, R8A7745_CLK_P), + DEF_MOD("scif2", 719, R8A7745_CLK_P), + DEF_MOD("scif1", 720, R8A7745_CLK_P), + DEF_MOD("scif0", 721, R8A7745_CLK_P), + DEF_MOD("du1", 723, R8A7745_CLK_ZX), + DEF_MOD("du0", 724, R8A7745_CLK_ZX), + DEF_MOD("ipmmu-sgx", 800, R8A7745_CLK_ZX), + DEF_MOD("vin1", 810, R8A7745_CLK_ZG), + DEF_MOD("vin0", 811, R8A7745_CLK_ZG), + DEF_MOD("etheravb", 812, R8A7745_CLK_HP), + DEF_MOD("ether", 813, R8A7745_CLK_P), + DEF_MOD("gpio6", 905, R8A7745_CLK_CP), + DEF_MOD("gpio5", 907, R8A7745_CLK_CP), + DEF_MOD("gpio4", 908, R8A7745_CLK_CP), + DEF_MOD("gpio3", 909, R8A7745_CLK_CP), + DEF_MOD("gpio2", 910, R8A7745_CLK_CP), + DEF_MOD("gpio1", 911, R8A7745_CLK_CP), + DEF_MOD("gpio0", 912, R8A7745_CLK_CP), + DEF_MOD("can1", 915, R8A7745_CLK_P), + DEF_MOD("can0", 916, R8A7745_CLK_P), + DEF_MOD("qspi_mod", 917, R8A7745_CLK_QSPI), + DEF_MOD("i2c5", 925, R8A7745_CLK_HP), + DEF_MOD("i2c4", 927, R8A7745_CLK_HP), + DEF_MOD("i2c3", 928, R8A7745_CLK_HP), + DEF_MOD("i2c2", 929, R8A7745_CLK_HP), + DEF_MOD("i2c1", 930, R8A7745_CLK_HP), + DEF_MOD("i2c0", 931, R8A7745_CLK_HP), + DEF_MOD("ssi-all", 1005, R8A7745_CLK_P), + 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, R8A7745_CLK_P), + 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-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("scifa3", 1106, R8A7745_CLK_MP), + DEF_MOD("scifa4", 1107, R8A7745_CLK_MP), + DEF_MOD("scifa5", 1108, R8A7745_CLK_MP), +}; + +static const unsigned int r8a7745_crit_mod_clks[] __initconst = { + MOD_CLK_ID(402), /* RWDT */ + MOD_CLK_ID(408), /* INTC-SYS (GIC) */ +}; + +/* + * CPG Clock Data + */ + +/* + * MD EXTAL PLL0 PLL1 PLL3 + * 14 13 19 (MHz) *1 *2 + *--------------------------------------------------- + * 0 0 1 15 x200/3 x208/2 x88 + * 0 1 1 20 x150/3 x156/2 x66 + * 1 0 1 26 / 2 x230/3 x240/2 x102 + * 1 1 1 30 / 2 x200/3 x208/2 x88 + * + * *1 : Table 7.5b indicates VCO output (PLL0 = VCO/3) + * *2 : Table 7.5b indicates VCO output (PLL1 = VCO/2) + */ +#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 13) | \ + (((md) & BIT(13)) >> 13)) + +static const struct rcar_gen2_cpg_pll_config cpg_pll_configs[8] __initconst = { + /* EXTAL div PLL1 mult PLL3 mult PLL0 mult */ + { 1, 208, 88, 200 }, + { 1, 156, 66, 150 }, + { 2, 240, 102, 230 }, + { 2, 208, 88, 200 }, +}; + +static int __init r8a7745_cpg_mssr_init(struct device *dev) +{ + const struct rcar_gen2_cpg_pll_config *cpg_pll_config; + u32 cpg_mode; + int error; + + error = rcar_rst_read_mode_pins(&cpg_mode); + if (error) + return error; + + cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)]; + + return rcar_gen2_cpg_init(cpg_pll_config, 3, cpg_mode); +} + +const struct cpg_mssr_info r8a7745_cpg_mssr_info __initconst = { + /* Core Clocks */ + .core_clks = r8a7745_core_clks, + .num_core_clks = ARRAY_SIZE(r8a7745_core_clks), + .last_dt_core_clk = LAST_DT_CORE_CLK, + .num_total_core_clks = MOD_CLK_BASE, + + /* Module Clocks */ + .mod_clks = r8a7745_mod_clks, + .num_mod_clks = ARRAY_SIZE(r8a7745_mod_clks), + .num_hw_mod_clks = 12 * 32, + + /* Critical Module Clocks */ + .crit_mod_clks = r8a7745_crit_mod_clks, + .num_crit_mod_clks = ARRAY_SIZE(r8a7745_crit_mod_clks), + + /* Callbacks */ + .init = r8a7745_cpg_mssr_init, + .cpg_clk_register = rcar_gen2_cpg_clk_register, +}; |