/* * Renesas RCar Gen3 R8A7795/R8A7796 CPG MSSR driver * * Copyright (C) 2017 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 #include #include #include #define CPG_RST_MODEMR 0x0060 #define CPG_PLL0CR 0x00d8 #define CPG_PLL2CR 0x002c #define CPG_PLL4CR 0x01f4 /* * Module Standby and Software Reset register offets. * * If the registers exist, these are valid for SH-Mobile, R-Mobile, * R-Car Gen2, R-Car Gen3, and RZ/G1. * These are NOT valid for R-Car Gen1 and RZ/A1! */ /* * Module Stop Status Register offsets */ static const u16 mstpsr[] = { 0x030, 0x038, 0x040, 0x048, 0x04C, 0x03C, 0x1C0, 0x1C4, 0x9A0, 0x9A4, 0x9A8, 0x9AC, }; #define MSTPSR(i) mstpsr[i] /* * System Module Stop Control Register offsets */ static const u16 smstpcr[] = { 0x130, 0x134, 0x138, 0x13C, 0x140, 0x144, 0x148, 0x14C, 0x990, 0x994, 0x998, 0x99C, }; #define SMSTPCR(i) smstpcr[i] /* Realtime Module Stop Control Register offsets */ #define RMSTPCR(i) (smstpcr[i] - 0x20) /* Modem Module Stop Control Register offsets (r8a73a4) */ #define MMSTPCR(i) (smstpcr[i] + 0x20) /* Software Reset Clearing Register offsets */ #define SRSTCLR(i) (0x940 + (i) * 4) struct gen3_clk_priv { void __iomem *base; struct clk clk_extal; struct clk clk_extalr; const struct rcar_gen3_cpg_pll_config *cpg_pll_config; const struct mssr_mod_clk *mod_clk; u32 mod_clk_size; }; /* * Definitions of CPG Core Clocks * * These include: * - Clock outputs exported to DT * - External input clocks * - Internal CPG clocks */ struct cpg_core_clk { /* Common */ const char *name; unsigned int id; unsigned int type; /* Depending on type */ unsigned int parent; /* Core Clocks only */ unsigned int div; unsigned int mult; unsigned int offset; }; enum clk_types { /* Generic */ CLK_TYPE_IN, /* External Clock Input */ CLK_TYPE_FF, /* Fixed Factor Clock */ /* Custom definitions start here */ CLK_TYPE_CUSTOM, }; #define DEF_TYPE(_name, _id, _type...) \ { .name = _name, .id = _id, .type = _type } #define DEF_BASE(_name, _id, _type, _parent...) \ DEF_TYPE(_name, _id, _type, .parent = _parent) #define DEF_INPUT(_name, _id) \ DEF_TYPE(_name, _id, CLK_TYPE_IN) #define DEF_FIXED(_name, _id, _parent, _div, _mult) \ DEF_BASE(_name, _id, CLK_TYPE_FF, _parent, .div = _div, .mult = _mult) #define DEF_GEN3_SD(_name, _id, _parent, _offset) \ DEF_BASE(_name, _id, CLK_TYPE_GEN3_SD, _parent, .offset = _offset) /* * Definitions of Module Clocks */ struct mssr_mod_clk { const char *name; unsigned int id; unsigned int parent; /* Add MOD_CLK_BASE for Module Clocks */ }; /* Convert from sparse base-100 to packed index space */ #define MOD_CLK_PACK(x) ((x) - ((x) / 100) * (100 - 32)) #define MOD_CLK_ID(x) (MOD_CLK_BASE + MOD_CLK_PACK(x)) #define DEF_MOD(_name, _mod, _parent...) \ { .name = _name, .id = MOD_CLK_ID(_mod), .parent = _parent } enum rcar_gen3_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, CLK_TYPE_GEN3_SD, CLK_TYPE_GEN3_R, }; struct rcar_gen3_cpg_pll_config { unsigned int extal_div; unsigned int pll1_mult; unsigned int pll3_mult; }; enum clk_ids { /* Core Clock Outputs exported to DT */ LAST_DT_CORE_CLK = R8A7796_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, CLK_RINT, /* Module Clocks */ MOD_CLK_BASE }; static const struct cpg_core_clk gen3_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), /* Core Clock Outputs */ DEF_FIXED("ztr", R8A7796_CLK_ZTR, CLK_PLL1_DIV2, 6, 1), DEF_FIXED("ztrd2", R8A7796_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1), DEF_FIXED("zt", R8A7796_CLK_ZT, CLK_PLL1_DIV2, 4, 1), DEF_FIXED("zx", R8A7796_CLK_ZX, CLK_PLL1_DIV2, 2, 1), DEF_FIXED("s0d1", R8A7796_CLK_S0D1, CLK_S0, 1, 1), DEF_FIXED("s0d2", R8A7796_CLK_S0D2, CLK_S0, 2, 1), DEF_FIXED("s0d3", R8A7796_CLK_S0D3, CLK_S0, 3, 1), DEF_FIXED("s0d4", R8A7796_CLK_S0D4, CLK_S0, 4, 1), DEF_FIXED("s0d6", R8A7796_CLK_S0D6, CLK_S0, 6, 1), DEF_FIXED("s0d8", R8A7796_CLK_S0D8, CLK_S0, 8, 1), DEF_FIXED("s0d12", R8A7796_CLK_S0D12, CLK_S0, 12, 1), DEF_FIXED("s1d1", R8A7796_CLK_S1D1, CLK_S1, 1, 1), DEF_FIXED("s1d2", R8A7796_CLK_S1D2, CLK_S1, 2, 1), DEF_FIXED("s1d4", R8A7796_CLK_S1D4, CLK_S1, 4, 1), DEF_FIXED("s2d1", R8A7796_CLK_S2D1, CLK_S2, 1, 1), DEF_FIXED("s2d2", R8A7796_CLK_S2D2, CLK_S2, 2, 1), DEF_FIXED("s2d4", R8A7796_CLK_S2D4, CLK_S2, 4, 1), DEF_FIXED("s3d1", R8A7796_CLK_S3D1, CLK_S3, 1, 1), DEF_FIXED("s3d2", R8A7796_CLK_S3D2, CLK_S3, 2, 1), DEF_FIXED("s3d4", R8A7796_CLK_S3D4, CLK_S3, 4, 1), DEF_GEN3_SD("sd0", R8A7796_CLK_SD0, CLK_SDSRC, 0x074), DEF_GEN3_SD("sd1", R8A7796_CLK_SD1, CLK_SDSRC, 0x078), DEF_GEN3_SD("sd2", R8A7796_CLK_SD2, CLK_SDSRC, 0x268), DEF_GEN3_SD("sd3", R8A7796_CLK_SD3, CLK_SDSRC, 0x26c), DEF_FIXED("cl", R8A7796_CLK_CL, CLK_PLL1_DIV2, 48, 1), DEF_FIXED("cp", R8A7796_CLK_CP, CLK_EXTAL, 2, 1), /* NOTE: HDMI, CSI, CAN etc. clock are missing */ DEF_BASE("r", R8A7796_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("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)), }; static const struct mssr_mod_clk r8a7796_mod_clks[] = { DEF_MOD("scif5", 202, R8A7796_CLK_S3D4), DEF_MOD("scif4", 203, R8A7796_CLK_S3D4), DEF_MOD("scif3", 204, R8A7796_CLK_S3D4), DEF_MOD("scif1", 206, R8A7796_CLK_S3D4), DEF_MOD("scif0", 207, R8A7796_CLK_S3D4), DEF_MOD("msiof3", 208, R8A7796_CLK_MSO), DEF_MOD("msiof2", 209, R8A7796_CLK_MSO), DEF_MOD("msiof1", 210, R8A7796_CLK_MSO), DEF_MOD("msiof0", 211, R8A7796_CLK_MSO), DEF_MOD("sys-dmac2", 217, R8A7796_CLK_S0D3), DEF_MOD("sys-dmac1", 218, R8A7796_CLK_S0D3), DEF_MOD("sys-dmac0", 219, R8A7796_CLK_S0D3), DEF_MOD("cmt3", 300, R8A7796_CLK_R), DEF_MOD("cmt2", 301, R8A7796_CLK_R), DEF_MOD("cmt1", 302, R8A7796_CLK_R), DEF_MOD("cmt0", 303, R8A7796_CLK_R), DEF_MOD("scif2", 310, R8A7796_CLK_S3D4), DEF_MOD("sdif3", 311, R8A7796_CLK_SD3), DEF_MOD("sdif2", 312, R8A7796_CLK_SD2), DEF_MOD("sdif1", 313, R8A7796_CLK_SD1), DEF_MOD("sdif0", 314, R8A7796_CLK_SD0), DEF_MOD("pcie1", 318, R8A7796_CLK_S3D1), DEF_MOD("pcie0", 319, R8A7796_CLK_S3D1), DEF_MOD("usb-dmac0", 330, R8A7796_CLK_S3D1), DEF_MOD("usb-dmac1", 331, R8A7796_CLK_S3D1), DEF_MOD("rwdt", 402, R8A7796_CLK_R), DEF_MOD("intc-ex", 407, R8A7796_CLK_CP), DEF_MOD("intc-ap", 408, R8A7796_CLK_S3D1), DEF_MOD("audmac1", 501, R8A7796_CLK_S0D3), DEF_MOD("audmac0", 502, R8A7796_CLK_S0D3), DEF_MOD("drif7", 508, R8A7796_CLK_S3D2), DEF_MOD("drif6", 509, R8A7796_CLK_S3D2), DEF_MOD("drif5", 510, R8A7796_CLK_S3D2), DEF_MOD("drif4", 511, R8A7796_CLK_S3D2), DEF_MOD("drif3", 512, R8A7796_CLK_S3D2), DEF_MOD("drif2", 513, R8A7796_CLK_S3D2), DEF_MOD("drif1", 514, R8A7796_CLK_S3D2), DEF_MOD("drif0", 515, R8A7796_CLK_S3D2), DEF_MOD("hscif4", 516, R8A7796_CLK_S3D1), DEF_MOD("hscif3", 517, R8A7796_CLK_S3D1), DEF_MOD("hscif2", 518, R8A7796_CLK_S3D1), DEF_MOD("hscif1", 519, R8A7796_CLK_S3D1), DEF_MOD("hscif0", 520, R8A7796_CLK_S3D1), DEF_MOD("thermal", 522, R8A7796_CLK_CP), DEF_MOD("pwm", 523, R8A7796_CLK_S0D12), DEF_MOD("fcpvd2", 601, R8A7796_CLK_S0D2), DEF_MOD("fcpvd1", 602, R8A7796_CLK_S0D2), DEF_MOD("fcpvd0", 603, R8A7796_CLK_S0D2), DEF_MOD("fcpvb0", 607, R8A7796_CLK_S0D1), DEF_MOD("fcpvi0", 611, R8A7796_CLK_S0D1), DEF_MOD("fcpf0", 615, R8A7796_CLK_S0D1), DEF_MOD("fcpci0", 617, R8A7796_CLK_S0D2), DEF_MOD("fcpcs", 619, R8A7796_CLK_S0D2), DEF_MOD("vspd2", 621, R8A7796_CLK_S0D2), DEF_MOD("vspd1", 622, R8A7796_CLK_S0D2), DEF_MOD("vspd0", 623, R8A7796_CLK_S0D2), DEF_MOD("vspb", 626, R8A7796_CLK_S0D1), DEF_MOD("vspi0", 631, R8A7796_CLK_S0D1), DEF_MOD("ehci1", 702, R8A7796_CLK_S3D4), DEF_MOD("ehci0", 703, R8A7796_CLK_S3D4), DEF_MOD("hsusb", 704, R8A7796_CLK_S3D4), DEF_MOD("csi20", 714, R8A7796_CLK_CSI0), DEF_MOD("csi40", 716, R8A7796_CLK_CSI0), DEF_MOD("du2", 722, R8A7796_CLK_S2D1), DEF_MOD("du1", 723, R8A7796_CLK_S2D1), DEF_MOD("du0", 724, R8A7796_CLK_S2D1), DEF_MOD("lvds", 727, R8A7796_CLK_S2D1), DEF_MOD("hdmi0", 729, R8A7796_CLK_HDMI), DEF_MOD("vin7", 804, R8A7796_CLK_S0D2), DEF_MOD("vin6", 805, R8A7796_CLK_S0D2), DEF_MOD("vin5", 806, R8A7796_CLK_S0D2), DEF_MOD("vin4", 807, R8A7796_CLK_S0D2), DEF_MOD("vin3", 808, R8A7796_CLK_S0D2), DEF_MOD("vin2", 809, R8A7796_CLK_S0D2), DEF_MOD("vin1", 810, R8A7796_CLK_S0D2), DEF_MOD("vin0", 811, R8A7796_CLK_S0D2), DEF_MOD("etheravb", 812, R8A7796_CLK_S0D6), DEF_MOD("imr1", 822, R8A7796_CLK_S0D2), DEF_MOD("imr0", 823, R8A7796_CLK_S0D2), DEF_MOD("gpio7", 905, R8A7796_CLK_S3D4), DEF_MOD("gpio6", 906, R8A7796_CLK_S3D4), DEF_MOD("gpio5", 907, R8A7796_CLK_S3D4), DEF_MOD("gpio4", 908, R8A7796_CLK_S3D4), DEF_MOD("gpio3", 909, R8A7796_CLK_S3D4), DEF_MOD("gpio2", 910, R8A7796_CLK_S3D4), DEF_MOD("gpio1", 911, R8A7796_CLK_S3D4), DEF_MOD("gpio0", 912, R8A7796_CLK_S3D4), DEF_MOD("can-fd", 914, R8A7796_CLK_S3D2), DEF_MOD("can-if1", 915, R8A7796_CLK_S3D4), DEF_MOD("can-if0", 916, R8A7796_CLK_S3D4), DEF_MOD("i2c6", 918, R8A7796_CLK_S0D6), DEF_MOD("i2c5", 919, R8A7796_CLK_S0D6), DEF_MOD("i2c-dvfs", 926, R8A7796_CLK_CP), DEF_MOD("i2c4", 927, R8A7796_CLK_S0D6), DEF_MOD("i2c3", 928, R8A7796_CLK_S0D6), DEF_MOD("i2c2", 929, R8A7796_CLK_S3D2), DEF_MOD("i2c1", 930, R8A7796_CLK_S3D2), DEF_MOD("i2c0", 931, R8A7796_CLK_S3D2), DEF_MOD("ssi-all", 1005, R8A7796_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, R8A7796_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 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, }, }; /* * SDn Clock */ #define CPG_SD_STP_HCK BIT(9) #define CPG_SD_STP_CK BIT(8) #define CPG_SD_STP_MASK (CPG_SD_STP_HCK | CPG_SD_STP_CK) #define CPG_SD_FC_MASK (0x7 << 2 | 0x3 << 0) #define CPG_SD_DIV_TABLE_DATA(stp_hck, stp_ck, sd_srcfc, sd_fc, sd_div) \ { \ .val = ((stp_hck) ? CPG_SD_STP_HCK : 0) | \ ((stp_ck) ? CPG_SD_STP_CK : 0) | \ ((sd_srcfc) << 2) | \ ((sd_fc) << 0), \ .div = (sd_div), \ } struct sd_div_table { u32 val; unsigned int div; }; /* SDn divider * sd_srcfc sd_fc div * stp_hck stp_ck (div) (div) = sd_srcfc x sd_fc *------------------------------------------------------------------- * 0 0 0 (1) 1 (4) 4 * 0 0 1 (2) 1 (4) 8 * 1 0 2 (4) 1 (4) 16 * 1 0 3 (8) 1 (4) 32 * 1 0 4 (16) 1 (4) 64 * 0 0 0 (1) 0 (2) 2 * 0 0 1 (2) 0 (2) 4 * 1 0 2 (4) 0 (2) 8 * 1 0 3 (8) 0 (2) 16 * 1 0 4 (16) 0 (2) 32 */ static const struct sd_div_table cpg_sd_div_table[] = { /* CPG_SD_DIV_TABLE_DATA(stp_hck, stp_ck, sd_srcfc, sd_fc, sd_div) */ CPG_SD_DIV_TABLE_DATA(0, 0, 0, 1, 4), CPG_SD_DIV_TABLE_DATA(0, 0, 1, 1, 8), CPG_SD_DIV_TABLE_DATA(1, 0, 2, 1, 16), CPG_SD_DIV_TABLE_DATA(1, 0, 3, 1, 32), CPG_SD_DIV_TABLE_DATA(1, 0, 4, 1, 64), CPG_SD_DIV_TABLE_DATA(0, 0, 0, 0, 2), CPG_SD_DIV_TABLE_DATA(0, 0, 1, 0, 4), CPG_SD_DIV_TABLE_DATA(1, 0, 2, 0, 8), CPG_SD_DIV_TABLE_DATA(1, 0, 3, 0, 16), CPG_SD_DIV_TABLE_DATA(1, 0, 4, 0, 32), }; static bool gen3_clk_is_mod(struct clk *clk) { return (clk->id >> 16) == CPG_MOD; } static int gen3_clk_get_mod(struct clk *clk, const struct mssr_mod_clk **mssr) { struct gen3_clk_priv *priv = dev_get_priv(clk->dev); const unsigned long clkid = clk->id & 0xffff; int i; if (!gen3_clk_is_mod(clk)) return -EINVAL; for (i = 0; i < priv->mod_clk_size; i++) { if (priv->mod_clk[i].id != MOD_CLK_ID(clkid)) continue; *mssr = &priv->mod_clk[i]; return 0; } return -ENODEV; } static int gen3_clk_get_core(struct clk *clk, const struct cpg_core_clk **core) { const unsigned long clkid = clk->id & 0xffff; int i; if (gen3_clk_is_mod(clk)) return -EINVAL; for (i = 0; i < ARRAY_SIZE(gen3_core_clks); i++) { if (gen3_core_clks[i].id != clkid) continue; *core = &gen3_core_clks[i]; return 0; } return -ENODEV; } static int gen3_clk_get_parent(struct clk *clk, struct clk *parent) { const struct cpg_core_clk *core; const struct mssr_mod_clk *mssr; int ret; if (gen3_clk_is_mod(clk)) { ret = gen3_clk_get_mod(clk, &mssr); if (ret) return ret; parent->id = mssr->parent; } else { ret = gen3_clk_get_core(clk, &core); if (ret) return ret; if (core->type == CLK_TYPE_IN) parent->id = ~0; /* Top-level clock */ else parent->id = core->parent; } parent->dev = clk->dev; return 0; } static int gen3_clk_endisable(struct clk *clk, bool enable) { struct gen3_clk_priv *priv = dev_get_priv(clk->dev); const unsigned long clkid = clk->id & 0xffff; const unsigned int reg = clkid / 100; const unsigned int bit = clkid % 100; const u32 bitmask = BIT(bit); if (!gen3_clk_is_mod(clk)) return -EINVAL; debug("%s[%i] MSTP %lu=%02u/%02u %s\n", __func__, __LINE__, clkid, reg, bit, enable ? "ON" : "OFF"); if (enable) { clrbits_le32(priv->base + SMSTPCR(reg), bitmask); return wait_for_bit("MSTP", priv->base + MSTPSR(reg), bitmask, 0, 100, 0); } else { setbits_le32(priv->base + SMSTPCR(reg), bitmask); return 0; } } static int gen3_clk_enable(struct clk *clk) { return gen3_clk_endisable(clk, true); } static int gen3_clk_disable(struct clk *clk) { return gen3_clk_endisable(clk, false); } static ulong gen3_clk_get_rate(struct clk *clk) { struct gen3_clk_priv *priv = dev_get_priv(clk->dev); struct clk parent; const struct cpg_core_clk *core; const struct rcar_gen3_cpg_pll_config *pll_config = priv->cpg_pll_config; u32 value, mult, rate = 0; int i, ret; debug("%s[%i] Clock: id=%lu\n", __func__, __LINE__, clk->id); ret = gen3_clk_get_parent(clk, &parent); if (ret) { printf("%s[%i] parent fail, ret=%i\n", __func__, __LINE__, ret); return ret; } if (gen3_clk_is_mod(clk)) { rate = gen3_clk_get_rate(&parent); debug("%s[%i] MOD clk: parent=%lu => rate=%u\n", __func__, __LINE__, parent.id, rate); return rate; } ret = gen3_clk_get_core(clk, &core); if (ret) return ret; switch (core->type) { case CLK_TYPE_IN: if (core->id == CLK_EXTAL) { rate = clk_get_rate(&priv->clk_extal); debug("%s[%i] EXTAL clk: rate=%u\n", __func__, __LINE__, rate); return rate; } if (core->id == CLK_EXTALR) { rate = clk_get_rate(&priv->clk_extalr); debug("%s[%i] EXTALR clk: rate=%u\n", __func__, __LINE__, rate); return rate; } return -EINVAL; case CLK_TYPE_GEN3_MAIN: rate = gen3_clk_get_rate(&parent) / pll_config->extal_div; debug("%s[%i] MAIN clk: parent=%i extal_div=%i => rate=%u\n", __func__, __LINE__, core->parent, pll_config->extal_div, rate); return rate; case CLK_TYPE_GEN3_PLL0: value = readl(priv->base + CPG_PLL0CR); mult = (((value >> 24) & 0x7f) + 1) * 2; rate = gen3_clk_get_rate(&parent) * mult; debug("%s[%i] PLL0 clk: parent=%i mult=%u => rate=%u\n", __func__, __LINE__, core->parent, mult, rate); return rate; case CLK_TYPE_GEN3_PLL1: rate = gen3_clk_get_rate(&parent) * pll_config->pll1_mult; debug("%s[%i] PLL1 clk: parent=%i mul=%i => rate=%u\n", __func__, __LINE__, core->parent, pll_config->pll1_mult, rate); return rate; case CLK_TYPE_GEN3_PLL2: value = readl(priv->base + CPG_PLL2CR); mult = (((value >> 24) & 0x7f) + 1) * 2; rate = gen3_clk_get_rate(&parent) * mult; debug("%s[%i] PLL2 clk: parent=%i mult=%u => rate=%u\n", __func__, __LINE__, core->parent, mult, rate); return rate; case CLK_TYPE_GEN3_PLL3: rate = gen3_clk_get_rate(&parent) * pll_config->pll3_mult; debug("%s[%i] PLL3 clk: parent=%i mul=%i => rate=%u\n", __func__, __LINE__, core->parent, pll_config->pll3_mult, rate); return rate; case CLK_TYPE_GEN3_PLL4: value = readl(priv->base + CPG_PLL4CR); mult = (((value >> 24) & 0x7f) + 1) * 2; rate = gen3_clk_get_rate(&parent) * mult; debug("%s[%i] PLL4 clk: parent=%i mult=%u => rate=%u\n", __func__, __LINE__, core->parent, mult, rate); return rate; case CLK_TYPE_FF: rate = (gen3_clk_get_rate(&parent) * core->mult) / core->div; debug("%s[%i] FIXED clk: parent=%i div=%i mul=%i => rate=%u\n", __func__, __LINE__, core->parent, core->mult, core->div, rate); return rate; case CLK_TYPE_GEN3_SD: /* FIXME */ value = readl(priv->base + core->offset); value &= CPG_SD_STP_MASK | CPG_SD_FC_MASK; for (i = 0; i < ARRAY_SIZE(cpg_sd_div_table); i++) { if (cpg_sd_div_table[i].val != value) continue; rate = gen3_clk_get_rate(&parent) / cpg_sd_div_table[i].div; debug("%s[%i] SD clk: parent=%i div=%i => rate=%u\n", __func__, __LINE__, core->parent, cpg_sd_div_table[i].div, rate); return rate; } return -EINVAL; } printf("%s[%i] unknown fail\n", __func__, __LINE__); return -ENOENT; } static ulong gen3_clk_set_rate(struct clk *clk, ulong rate) { return gen3_clk_get_rate(clk); } static int gen3_clk_of_xlate(struct clk *clk, struct ofnode_phandle_args *args) { if (args->args_count != 2) { debug("Invaild args_count: %d\n", args->args_count); return -EINVAL; } clk->id = (args->args[0] << 16) | args->args[1]; return 0; } static const struct clk_ops gen3_clk_ops = { .enable = gen3_clk_enable, .disable = gen3_clk_disable, .get_rate = gen3_clk_get_rate, .set_rate = gen3_clk_set_rate, .of_xlate = gen3_clk_of_xlate, }; enum gen3_clk_model { CLK_R8A7795, CLK_R8A7796, }; static int gen3_clk_probe(struct udevice *dev) { struct gen3_clk_priv *priv = dev_get_priv(dev); enum gen3_clk_model model = dev_get_driver_data(dev); fdt_addr_t rst_base; u32 cpg_mode; int ret; priv->base = (struct gen3_base *)devfdt_get_addr(dev); if (!priv->base) return -EINVAL; switch (model) { case CLK_R8A7795: priv->mod_clk = r8a7795_mod_clks; priv->mod_clk_size = ARRAY_SIZE(r8a7795_mod_clks); ret = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "renesas,r8a7795-rst"); if (ret < 0) return ret; break; case CLK_R8A7796: priv->mod_clk = r8a7796_mod_clks; priv->mod_clk_size = ARRAY_SIZE(r8a7796_mod_clks); ret = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "renesas,r8a7796-rst"); if (ret < 0) return ret; break; default: return -EINVAL; } rst_base = fdtdec_get_addr(gd->fdt_blob, ret, "reg"); if (rst_base == FDT_ADDR_T_NONE) return -EINVAL; cpg_mode = readl(rst_base + CPG_RST_MODEMR); priv->cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)]; if (!priv->cpg_pll_config->extal_div) return -EINVAL; ret = clk_get_by_name(dev, "extal", &priv->clk_extal); if (ret < 0) return ret; ret = clk_get_by_name(dev, "extalr", &priv->clk_extalr); if (ret < 0) return ret; return 0; } static const struct udevice_id gen3_clk_ids[] = { { .compatible = "renesas,r8a7795-cpg-mssr", .data = CLK_R8A7795 }, { .compatible = "renesas,r8a7796-cpg-mssr", .data = CLK_R8A7796 }, { } }; U_BOOT_DRIVER(clk_gen3) = { .name = "clk_gen3", .id = UCLASS_CLK, .of_match = gen3_clk_ids, .priv_auto_alloc_size = sizeof(struct gen3_clk_priv), .ops = &gen3_clk_ops, .probe = gen3_clk_probe, };