| /* |
| * Renesas RCar Gen3 R8A7795/R8A7796 CPG MSSR driver |
| * |
| * Copyright (C) 2017 Marek Vasut <marek.vasut@gmail.com> |
| * |
| * 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 <common.h> |
| #include <clk-uclass.h> |
| #include <dm.h> |
| #include <errno.h> |
| #include <wait_bit.h> |
| #include <asm/io.h> |
| |
| #include <dt-bindings/clock/r8a7795-cpg-mssr.h> |
| #include <dt-bindings/clock/r8a7796-cpg-mssr.h> |
| |
| #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, |
| }; |