/* * Renesas R8A7795 CPG MSSR driver * * Copyright (C) 2017-2018 Marek Vasut * * Based on the following driver from Linux kernel: * r8a7796 Clock Pulse Generator / Module Standby and Software Reset * * Copyright (C) 2016 Glider bvba * * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include #include #include "renesas-cpg-mssr.h" #include "rcar-gen3-cpg.h" enum clk_ids { /* Core Clock Outputs exported to DT */ LAST_DT_CORE_CLK = R8A7795_CLK_S0D12, /* 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_RPCSRC, CLK_SSPSRC, CLK_RINT, /* Module Clocks */ MOD_CLK_BASE }; static const struct cpg_core_clk r8a7795_core_clks[] = { /* 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), DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1_DIV2, 2, 1), DEF_FIXED(".rpcsrc", CLK_RPCSRC, CLK_PLL1, 2, 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("s0d2", R8A7795_CLK_S0D2, CLK_S0, 2, 1), DEF_FIXED("s0d3", R8A7795_CLK_S0D3, CLK_S0, 3, 1), DEF_FIXED("s0d4", R8A7795_CLK_S0D4, CLK_S0, 4, 1), DEF_FIXED("s0d6", R8A7795_CLK_S0D6, CLK_S0, 6, 1), DEF_FIXED("s0d8", R8A7795_CLK_S0D8, CLK_S0, 8, 1), DEF_FIXED("s0d12", R8A7795_CLK_S0D12, CLK_S0, 12, 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_GEN3_SD("sd0", R8A7795_CLK_SD0, CLK_SDSRC, 0x074), DEF_GEN3_SD("sd1", R8A7795_CLK_SD1, CLK_SDSRC, 0x078), DEF_GEN3_SD("sd2", R8A7795_CLK_SD2, CLK_SDSRC, 0x268), DEF_GEN3_SD("sd3", R8A7795_CLK_SD3, CLK_SDSRC, 0x26c), DEF_GEN3_RPC("rpc", R8A7795_CLK_RPC, CLK_RPCSRC, 0x238), DEF_FIXED("cl", R8A7795_CLK_CL, CLK_PLL1_DIV2, 48, 1), DEF_FIXED("cp", R8A7795_CLK_CP, CLK_EXTAL, 2, 1), /* NOTE: HDMI, CSI, CAN etc. clock are missing */ DEF_BASE("r", R8A7795_CLK_R, CLK_TYPE_GEN3_R, CLK_RINT), }; static const struct mssr_mod_clk r8a7795_mod_clks[] = { DEF_MOD("fdp1-2", 117, R8A7795_CLK_S2D1), /* ES1.x */ DEF_MOD("fdp1-1", 118, R8A7795_CLK_S0D1), DEF_MOD("fdp1-0", 119, R8A7795_CLK_S0D1), 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_S0D3), DEF_MOD("sys-dmac1", 218, R8A7795_CLK_S0D3), DEF_MOD("sys-dmac0", 219, R8A7795_CLK_S0D3), DEF_MOD("cmt3", 300, R8A7795_CLK_R), DEF_MOD("cmt2", 301, R8A7795_CLK_R), DEF_MOD("cmt1", 302, R8A7795_CLK_R), DEF_MOD("cmt0", 303, R8A7795_CLK_R), DEF_MOD("scif2", 310, R8A7795_CLK_S3D4), DEF_MOD("sdif3", 311, R8A7795_CLK_SD3), DEF_MOD("sdif2", 312, R8A7795_CLK_SD2), DEF_MOD("sdif1", 313, R8A7795_CLK_SD1), DEF_MOD("sdif0", 314, R8A7795_CLK_SD0), DEF_MOD("pcie1", 318, R8A7795_CLK_S3D1), DEF_MOD("pcie0", 319, R8A7795_CLK_S3D1), DEF_MOD("usb-dmac30", 326, R8A7795_CLK_S3D1), DEF_MOD("usb3-if1", 327, R8A7795_CLK_S3D1), /* ES1.x */ DEF_MOD("usb3-if0", 328, R8A7795_CLK_S3D1), DEF_MOD("usb-dmac31", 329, R8A7795_CLK_S3D1), DEF_MOD("usb-dmac0", 330, R8A7795_CLK_S3D1), DEF_MOD("usb-dmac1", 331, R8A7795_CLK_S3D1), DEF_MOD("rwdt", 402, R8A7795_CLK_R), DEF_MOD("intc-ex", 407, R8A7795_CLK_CP), DEF_MOD("intc-ap", 408, R8A7795_CLK_S3D1), DEF_MOD("audmac1", 501, R8A7795_CLK_S0D3), DEF_MOD("audmac0", 502, R8A7795_CLK_S0D3), DEF_MOD("drif7", 508, R8A7795_CLK_S3D2), DEF_MOD("drif6", 509, R8A7795_CLK_S3D2), DEF_MOD("drif5", 510, R8A7795_CLK_S3D2), DEF_MOD("drif4", 511, R8A7795_CLK_S3D2), DEF_MOD("drif3", 512, R8A7795_CLK_S3D2), DEF_MOD("drif2", 513, R8A7795_CLK_S3D2), DEF_MOD("drif1", 514, R8A7795_CLK_S3D2), DEF_MOD("drif0", 515, R8A7795_CLK_S3D2), 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("thermal", 522, R8A7795_CLK_CP), DEF_MOD("pwm", 523, R8A7795_CLK_S0D12), DEF_MOD("fcpvd3", 600, R8A7795_CLK_S2D1), /* ES1.x */ DEF_MOD("fcpvd2", 601, R8A7795_CLK_S0D2), DEF_MOD("fcpvd1", 602, R8A7795_CLK_S0D2), DEF_MOD("fcpvd0", 603, R8A7795_CLK_S0D2), DEF_MOD("fcpvb1", 606, R8A7795_CLK_S0D1), DEF_MOD("fcpvb0", 607, R8A7795_CLK_S0D1), DEF_MOD("fcpvi2", 609, R8A7795_CLK_S2D1), /* ES1.x */ DEF_MOD("fcpvi1", 610, R8A7795_CLK_S0D1), DEF_MOD("fcpvi0", 611, R8A7795_CLK_S0D1), DEF_MOD("fcpf2", 613, R8A7795_CLK_S2D1), /* ES1.x */ DEF_MOD("fcpf1", 614, R8A7795_CLK_S0D1), DEF_MOD("fcpf0", 615, R8A7795_CLK_S0D1), DEF_MOD("fcpci1", 616, R8A7795_CLK_S2D1), /* ES1.x */ DEF_MOD("fcpci0", 617, R8A7795_CLK_S2D1), /* ES1.x */ DEF_MOD("fcpcs", 619, R8A7795_CLK_S0D1), DEF_MOD("vspd3", 620, R8A7795_CLK_S2D1), /* ES1.x */ DEF_MOD("vspd2", 621, R8A7795_CLK_S0D2), DEF_MOD("vspd1", 622, R8A7795_CLK_S0D2), DEF_MOD("vspd0", 623, R8A7795_CLK_S0D2), DEF_MOD("vspbc", 624, R8A7795_CLK_S0D1), DEF_MOD("vspbd", 626, R8A7795_CLK_S0D1), DEF_MOD("vspi2", 629, R8A7795_CLK_S2D1), /* ES1.x */ DEF_MOD("vspi1", 630, R8A7795_CLK_S0D1), DEF_MOD("vspi0", 631, R8A7795_CLK_S0D1), DEF_MOD("ehci3", 700, R8A7795_CLK_S3D4), 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("hsusb3", 705, R8A7795_CLK_S3D4), DEF_MOD("csi21", 713, R8A7795_CLK_CSI0), /* ES1.x */ DEF_MOD("csi20", 714, R8A7795_CLK_CSI0), DEF_MOD("csi41", 715, R8A7795_CLK_CSI0), DEF_MOD("csi40", 716, R8A7795_CLK_CSI0), 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("lvds", 727, R8A7795_CLK_S0D4), DEF_MOD("hdmi1", 728, R8A7795_CLK_HDMI), DEF_MOD("hdmi0", 729, R8A7795_CLK_HDMI), DEF_MOD("vin7", 804, R8A7795_CLK_S0D2), DEF_MOD("vin6", 805, R8A7795_CLK_S0D2), DEF_MOD("vin5", 806, R8A7795_CLK_S0D2), DEF_MOD("vin4", 807, R8A7795_CLK_S0D2), DEF_MOD("vin3", 808, R8A7795_CLK_S0D2), DEF_MOD("vin2", 809, R8A7795_CLK_S0D2), DEF_MOD("vin1", 810, R8A7795_CLK_S0D2), DEF_MOD("vin0", 811, R8A7795_CLK_S0D2), DEF_MOD("etheravb", 812, R8A7795_CLK_S0D6), DEF_MOD("sata0", 815, R8A7795_CLK_S3D2), DEF_MOD("imr3", 820, R8A7795_CLK_S0D2), DEF_MOD("imr2", 821, R8A7795_CLK_S0D2), DEF_MOD("imr1", 822, R8A7795_CLK_S0D2), DEF_MOD("imr0", 823, R8A7795_CLK_S0D2), DEF_MOD("gpio7", 905, R8A7795_CLK_S3D4), DEF_MOD("gpio6", 906, R8A7795_CLK_S3D4), DEF_MOD("gpio5", 907, R8A7795_CLK_S3D4), DEF_MOD("gpio4", 908, R8A7795_CLK_S3D4), DEF_MOD("gpio3", 909, R8A7795_CLK_S3D4), DEF_MOD("gpio2", 910, R8A7795_CLK_S3D4), DEF_MOD("gpio1", 911, R8A7795_CLK_S3D4), DEF_MOD("gpio0", 912, R8A7795_CLK_S3D4), DEF_MOD("can-fd", 914, R8A7795_CLK_S3D2), DEF_MOD("can-if1", 915, R8A7795_CLK_S3D4), DEF_MOD("can-if0", 916, R8A7795_CLK_S3D4), DEF_MOD("rpc", 917, R8A7795_CLK_RPC), DEF_MOD("i2c6", 918, R8A7795_CLK_S0D6), DEF_MOD("i2c5", 919, R8A7795_CLK_S0D6), DEF_MOD("i2c-dvfs", 926, R8A7795_CLK_CP), DEF_MOD("i2c4", 927, R8A7795_CLK_S0D6), DEF_MOD("i2c3", 928, R8A7795_CLK_S0D6), 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)), }; /* * 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)) static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[16] = { /* EXTAL div PLL1 mult/div PLL3 mult/div */ { 1, 192, 1, 192, 1, }, { 1, 192, 1, 128, 1, }, { 0, /* Prohibited setting */ }, { 1, 192, 1, 192, 1, }, { 1, 160, 1, 160, 1, }, { 1, 160, 1, 106, 1, }, { 0, /* Prohibited setting */ }, { 1, 160, 1, 160, 1, }, { 1, 128, 1, 128, 1, }, { 1, 128, 1, 84, 1, }, { 0, /* Prohibited setting */ }, { 1, 128, 1, 128, 1, }, { 2, 192, 1, 192, 1, }, { 2, 192, 1, 128, 1, }, { 0, /* Prohibited setting */ }, { 2, 192, 1, 192, 1, }, }; static const struct mstp_stop_table r8a7795_mstp_table[] = { { 0x00640800, 0x0 }, { 0xF3EE9390, 0x0 }, { 0x340FAFDC, 0x2040 }, { 0xD80C7CDF, 0x400 }, { 0x80000184, 0x180 }, { 0x40BFFF46, 0x0 }, { 0xE5FBEECF, 0x0 }, { 0x39FFFF0E, 0x0 }, { 0x01F19FF4, 0x0 }, { 0xFFDFFFFF, 0x0 }, { 0xFFFEFFE0, 0x0 }, { 0x00000000, 0x0 }, }; static const void *r8a7795_get_pll_config(const u32 cpg_mode) { return &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)]; } static const struct cpg_mssr_info r8a7795_cpg_mssr_info = { .core_clk = r8a7795_core_clks, .core_clk_size = ARRAY_SIZE(r8a7795_core_clks), .mod_clk = r8a7795_mod_clks, .mod_clk_size = ARRAY_SIZE(r8a7795_mod_clks), .mstp_table = r8a7795_mstp_table, .mstp_table_size = ARRAY_SIZE(r8a7795_mstp_table), .reset_node = "renesas,r8a7795-rst", .extalr_node = "extalr", .mod_clk_base = MOD_CLK_BASE, .clk_extal_id = CLK_EXTAL, .clk_extalr_id = CLK_EXTALR, .get_pll_config = r8a7795_get_pll_config, }; static const struct udevice_id r8a7795_clk_ids[] = { { .compatible = "renesas,r8a7795-cpg-mssr", .data = (ulong)&r8a7795_cpg_mssr_info }, { } }; U_BOOT_DRIVER(clk_r8a7795) = { .name = "clk_r8a7795", .id = UCLASS_CLK, .of_match = r8a7795_clk_ids, .priv_auto_alloc_size = sizeof(struct gen3_clk_priv), .ops = &gen3_clk_ops, .probe = gen3_clk_probe, .remove = gen3_clk_remove, };