369 lines
13 KiB
C
369 lines
13 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* r8a77965 Clock Pulse Generator / Module Standby and Software Reset
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*
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* Copyright (C) 2018 Jacopo Mondi <jacopo+renesas@jmondi.org>
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* Copyright (C) 2019 Renesas Electronics Corp.
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*
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* Based on r8a7795-cpg-mssr.c
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*
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* Copyright (C) 2015 Glider bvba
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* Copyright (C) 2015 Renesas Electronics Corp.
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*/
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#include <linux/device.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/soc/renesas/rcar-rst.h>
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#include <dt-bindings/clock/r8a77965-cpg-mssr.h>
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#include "renesas-cpg-mssr.h"
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#include "rcar-gen3-cpg.h"
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enum clk_ids {
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/* Core Clock Outputs exported to DT */
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LAST_DT_CORE_CLK = R8A77965_CLK_OSC,
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/* External Input Clocks */
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CLK_EXTAL,
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CLK_EXTALR,
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/* Internal Core Clocks */
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CLK_MAIN,
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CLK_PLL0,
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CLK_PLL1,
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CLK_PLL3,
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CLK_PLL4,
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CLK_PLL1_DIV2,
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CLK_PLL1_DIV4,
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CLK_S0,
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CLK_S1,
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CLK_S2,
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CLK_S3,
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CLK_SDSRC,
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CLK_SSPSRC,
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CLK_RPCSRC,
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CLK_RINT,
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/* Module Clocks */
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MOD_CLK_BASE
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};
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static const struct cpg_core_clk r8a77965_core_clks[] __initconst = {
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/* External Clock Inputs */
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DEF_INPUT("extal", CLK_EXTAL),
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DEF_INPUT("extalr", CLK_EXTALR),
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/* Internal Core Clocks */
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DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL),
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DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN3_PLL0, CLK_MAIN),
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DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN),
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DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN),
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DEF_BASE(".pll4", CLK_PLL4, CLK_TYPE_GEN3_PLL4, CLK_MAIN),
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DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1),
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DEF_FIXED(".pll1_div4", CLK_PLL1_DIV4, CLK_PLL1_DIV2, 2, 1),
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DEF_FIXED(".s0", CLK_S0, CLK_PLL1_DIV2, 2, 1),
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DEF_FIXED(".s1", CLK_S1, CLK_PLL1_DIV2, 3, 1),
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DEF_FIXED(".s2", CLK_S2, CLK_PLL1_DIV2, 4, 1),
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DEF_FIXED(".s3", CLK_S3, CLK_PLL1_DIV2, 6, 1),
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DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1_DIV2, 2, 1),
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DEF_BASE(".rpcsrc", CLK_RPCSRC, CLK_TYPE_GEN3_RPCSRC, CLK_PLL1),
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DEF_GEN3_OSC(".r", CLK_RINT, CLK_EXTAL, 32),
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/* Core Clock Outputs */
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DEF_GEN3_Z("z", R8A77965_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0, 2, 8),
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DEF_FIXED("ztr", R8A77965_CLK_ZTR, CLK_PLL1_DIV2, 6, 1),
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DEF_FIXED("ztrd2", R8A77965_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
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DEF_FIXED("zt", R8A77965_CLK_ZT, CLK_PLL1_DIV2, 4, 1),
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DEF_FIXED("zx", R8A77965_CLK_ZX, CLK_PLL1_DIV2, 2, 1),
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DEF_FIXED("s0d1", R8A77965_CLK_S0D1, CLK_S0, 1, 1),
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DEF_FIXED("s0d2", R8A77965_CLK_S0D2, CLK_S0, 2, 1),
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DEF_FIXED("s0d3", R8A77965_CLK_S0D3, CLK_S0, 3, 1),
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DEF_FIXED("s0d4", R8A77965_CLK_S0D4, CLK_S0, 4, 1),
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DEF_FIXED("s0d6", R8A77965_CLK_S0D6, CLK_S0, 6, 1),
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DEF_FIXED("s0d8", R8A77965_CLK_S0D8, CLK_S0, 8, 1),
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DEF_FIXED("s0d12", R8A77965_CLK_S0D12, CLK_S0, 12, 1),
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DEF_FIXED("s1d1", R8A77965_CLK_S1D1, CLK_S1, 1, 1),
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DEF_FIXED("s1d2", R8A77965_CLK_S1D2, CLK_S1, 2, 1),
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DEF_FIXED("s1d4", R8A77965_CLK_S1D4, CLK_S1, 4, 1),
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DEF_FIXED("s2d1", R8A77965_CLK_S2D1, CLK_S2, 1, 1),
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DEF_FIXED("s2d2", R8A77965_CLK_S2D2, CLK_S2, 2, 1),
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DEF_FIXED("s2d4", R8A77965_CLK_S2D4, CLK_S2, 4, 1),
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DEF_FIXED("s3d1", R8A77965_CLK_S3D1, CLK_S3, 1, 1),
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DEF_FIXED("s3d2", R8A77965_CLK_S3D2, CLK_S3, 2, 1),
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DEF_FIXED("s3d4", R8A77965_CLK_S3D4, CLK_S3, 4, 1),
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DEF_GEN3_SDH("sd0h", R8A77965_CLK_SD0H, CLK_SDSRC, 0x074),
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DEF_GEN3_SDH("sd1h", R8A77965_CLK_SD1H, CLK_SDSRC, 0x078),
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DEF_GEN3_SDH("sd2h", R8A77965_CLK_SD2H, CLK_SDSRC, 0x268),
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DEF_GEN3_SDH("sd3h", R8A77965_CLK_SD3H, CLK_SDSRC, 0x26c),
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DEF_GEN3_SD("sd0", R8A77965_CLK_SD0, R8A77965_CLK_SD0H, 0x074),
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DEF_GEN3_SD("sd1", R8A77965_CLK_SD1, R8A77965_CLK_SD1H, 0x078),
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DEF_GEN3_SD("sd2", R8A77965_CLK_SD2, R8A77965_CLK_SD2H, 0x268),
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DEF_GEN3_SD("sd3", R8A77965_CLK_SD3, R8A77965_CLK_SD3H, 0x26c),
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DEF_BASE("rpc", R8A77965_CLK_RPC, CLK_TYPE_GEN3_RPC, CLK_RPCSRC),
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DEF_BASE("rpcd2", R8A77965_CLK_RPCD2, CLK_TYPE_GEN3_RPCD2, R8A77965_CLK_RPC),
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DEF_FIXED("cl", R8A77965_CLK_CL, CLK_PLL1_DIV2, 48, 1),
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DEF_FIXED("cr", R8A77965_CLK_CR, CLK_PLL1_DIV4, 2, 1),
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DEF_FIXED("cp", R8A77965_CLK_CP, CLK_EXTAL, 2, 1),
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DEF_FIXED("cpex", R8A77965_CLK_CPEX, CLK_EXTAL, 2, 1),
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DEF_DIV6P1("canfd", R8A77965_CLK_CANFD, CLK_PLL1_DIV4, 0x244),
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DEF_DIV6P1("csi0", R8A77965_CLK_CSI0, CLK_PLL1_DIV4, 0x00c),
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DEF_DIV6P1("mso", R8A77965_CLK_MSO, CLK_PLL1_DIV4, 0x014),
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DEF_DIV6P1("hdmi", R8A77965_CLK_HDMI, CLK_PLL1_DIV4, 0x250),
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DEF_GEN3_OSC("osc", R8A77965_CLK_OSC, CLK_EXTAL, 8),
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DEF_BASE("r", R8A77965_CLK_R, CLK_TYPE_GEN3_R, CLK_RINT),
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};
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static const struct mssr_mod_clk r8a77965_mod_clks[] __initconst = {
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DEF_MOD("fdp1-0", 119, R8A77965_CLK_S0D1),
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DEF_MOD("tmu4", 121, R8A77965_CLK_S0D6),
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DEF_MOD("tmu3", 122, R8A77965_CLK_S3D2),
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DEF_MOD("tmu2", 123, R8A77965_CLK_S3D2),
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DEF_MOD("tmu1", 124, R8A77965_CLK_S3D2),
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DEF_MOD("tmu0", 125, R8A77965_CLK_CP),
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DEF_MOD("scif5", 202, R8A77965_CLK_S3D4),
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DEF_MOD("scif4", 203, R8A77965_CLK_S3D4),
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DEF_MOD("scif3", 204, R8A77965_CLK_S3D4),
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DEF_MOD("scif1", 206, R8A77965_CLK_S3D4),
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DEF_MOD("scif0", 207, R8A77965_CLK_S3D4),
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DEF_MOD("msiof3", 208, R8A77965_CLK_MSO),
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DEF_MOD("msiof2", 209, R8A77965_CLK_MSO),
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DEF_MOD("msiof1", 210, R8A77965_CLK_MSO),
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DEF_MOD("msiof0", 211, R8A77965_CLK_MSO),
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DEF_MOD("sys-dmac2", 217, R8A77965_CLK_S3D1),
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DEF_MOD("sys-dmac1", 218, R8A77965_CLK_S3D1),
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DEF_MOD("sys-dmac0", 219, R8A77965_CLK_S0D3),
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DEF_MOD("sceg-pub", 229, R8A77965_CLK_CR),
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DEF_MOD("cmt3", 300, R8A77965_CLK_R),
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DEF_MOD("cmt2", 301, R8A77965_CLK_R),
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DEF_MOD("cmt1", 302, R8A77965_CLK_R),
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DEF_MOD("cmt0", 303, R8A77965_CLK_R),
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DEF_MOD("tpu0", 304, R8A77965_CLK_S3D4),
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DEF_MOD("scif2", 310, R8A77965_CLK_S3D4),
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DEF_MOD("sdif3", 311, R8A77965_CLK_SD3),
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DEF_MOD("sdif2", 312, R8A77965_CLK_SD2),
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DEF_MOD("sdif1", 313, R8A77965_CLK_SD1),
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DEF_MOD("sdif0", 314, R8A77965_CLK_SD0),
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DEF_MOD("pcie1", 318, R8A77965_CLK_S3D1),
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DEF_MOD("pcie0", 319, R8A77965_CLK_S3D1),
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DEF_MOD("usb3-if0", 328, R8A77965_CLK_S3D1),
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DEF_MOD("usb-dmac0", 330, R8A77965_CLK_S3D1),
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DEF_MOD("usb-dmac1", 331, R8A77965_CLK_S3D1),
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DEF_MOD("rwdt", 402, R8A77965_CLK_R),
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DEF_MOD("intc-ex", 407, R8A77965_CLK_CP),
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DEF_MOD("intc-ap", 408, R8A77965_CLK_S0D3),
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DEF_MOD("audmac1", 501, R8A77965_CLK_S1D2),
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DEF_MOD("audmac0", 502, R8A77965_CLK_S1D2),
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DEF_MOD("drif31", 508, R8A77965_CLK_S3D2),
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DEF_MOD("drif30", 509, R8A77965_CLK_S3D2),
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DEF_MOD("drif21", 510, R8A77965_CLK_S3D2),
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DEF_MOD("drif20", 511, R8A77965_CLK_S3D2),
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DEF_MOD("drif11", 512, R8A77965_CLK_S3D2),
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DEF_MOD("drif10", 513, R8A77965_CLK_S3D2),
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DEF_MOD("drif01", 514, R8A77965_CLK_S3D2),
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DEF_MOD("drif00", 515, R8A77965_CLK_S3D2),
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DEF_MOD("hscif4", 516, R8A77965_CLK_S3D1),
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DEF_MOD("hscif3", 517, R8A77965_CLK_S3D1),
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DEF_MOD("hscif2", 518, R8A77965_CLK_S3D1),
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DEF_MOD("hscif1", 519, R8A77965_CLK_S3D1),
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DEF_MOD("hscif0", 520, R8A77965_CLK_S3D1),
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DEF_MOD("thermal", 522, R8A77965_CLK_CP),
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DEF_MOD("pwm", 523, R8A77965_CLK_S0D12),
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DEF_MOD("fcpvd1", 602, R8A77965_CLK_S0D2),
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DEF_MOD("fcpvd0", 603, R8A77965_CLK_S0D2),
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DEF_MOD("fcpvb0", 607, R8A77965_CLK_S0D1),
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DEF_MOD("fcpvi0", 611, R8A77965_CLK_S0D1),
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DEF_MOD("fcpf0", 615, R8A77965_CLK_S0D1),
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DEF_MOD("fcpcs", 619, R8A77965_CLK_S0D2),
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DEF_MOD("vspd1", 622, R8A77965_CLK_S0D2),
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DEF_MOD("vspd0", 623, R8A77965_CLK_S0D2),
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DEF_MOD("vspb", 626, R8A77965_CLK_S0D1),
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DEF_MOD("vspi0", 631, R8A77965_CLK_S0D1),
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DEF_MOD("ehci1", 702, R8A77965_CLK_S3D2),
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DEF_MOD("ehci0", 703, R8A77965_CLK_S3D2),
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DEF_MOD("hsusb", 704, R8A77965_CLK_S3D2),
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DEF_MOD("cmm3", 708, R8A77965_CLK_S2D1),
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DEF_MOD("cmm1", 710, R8A77965_CLK_S2D1),
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DEF_MOD("cmm0", 711, R8A77965_CLK_S2D1),
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DEF_MOD("csi20", 714, R8A77965_CLK_CSI0),
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DEF_MOD("csi40", 716, R8A77965_CLK_CSI0),
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DEF_MOD("du3", 721, R8A77965_CLK_S2D1),
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DEF_MOD("du1", 723, R8A77965_CLK_S2D1),
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DEF_MOD("du0", 724, R8A77965_CLK_S2D1),
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DEF_MOD("lvds", 727, R8A77965_CLK_S2D1),
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DEF_MOD("hdmi0", 729, R8A77965_CLK_HDMI),
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DEF_MOD("mlp", 802, R8A77965_CLK_S2D1),
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DEF_MOD("vin7", 804, R8A77965_CLK_S0D2),
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DEF_MOD("vin6", 805, R8A77965_CLK_S0D2),
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DEF_MOD("vin5", 806, R8A77965_CLK_S0D2),
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DEF_MOD("vin4", 807, R8A77965_CLK_S0D2),
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DEF_MOD("vin3", 808, R8A77965_CLK_S0D2),
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DEF_MOD("vin2", 809, R8A77965_CLK_S0D2),
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DEF_MOD("vin1", 810, R8A77965_CLK_S0D2),
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DEF_MOD("vin0", 811, R8A77965_CLK_S0D2),
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DEF_MOD("etheravb", 812, R8A77965_CLK_S0D6),
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DEF_MOD("sata0", 815, R8A77965_CLK_S3D2),
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DEF_MOD("imr1", 822, R8A77965_CLK_S0D2),
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DEF_MOD("imr0", 823, R8A77965_CLK_S0D2),
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DEF_MOD("gpio7", 905, R8A77965_CLK_S3D4),
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DEF_MOD("gpio6", 906, R8A77965_CLK_S3D4),
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DEF_MOD("gpio5", 907, R8A77965_CLK_S3D4),
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DEF_MOD("gpio4", 908, R8A77965_CLK_S3D4),
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DEF_MOD("gpio3", 909, R8A77965_CLK_S3D4),
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DEF_MOD("gpio2", 910, R8A77965_CLK_S3D4),
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DEF_MOD("gpio1", 911, R8A77965_CLK_S3D4),
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DEF_MOD("gpio0", 912, R8A77965_CLK_S3D4),
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DEF_MOD("can-fd", 914, R8A77965_CLK_S3D2),
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DEF_MOD("can-if1", 915, R8A77965_CLK_S3D4),
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DEF_MOD("can-if0", 916, R8A77965_CLK_S3D4),
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DEF_MOD("rpc-if", 917, R8A77965_CLK_RPCD2),
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DEF_MOD("i2c6", 918, R8A77965_CLK_S0D6),
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DEF_MOD("i2c5", 919, R8A77965_CLK_S0D6),
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DEF_MOD("i2c-dvfs", 926, R8A77965_CLK_CP),
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DEF_MOD("i2c4", 927, R8A77965_CLK_S0D6),
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DEF_MOD("i2c3", 928, R8A77965_CLK_S0D6),
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DEF_MOD("i2c2", 929, R8A77965_CLK_S3D2),
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DEF_MOD("i2c1", 930, R8A77965_CLK_S3D2),
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DEF_MOD("i2c0", 931, R8A77965_CLK_S3D2),
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DEF_MOD("ssi-all", 1005, R8A77965_CLK_S3D4),
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DEF_MOD("ssi9", 1006, MOD_CLK_ID(1005)),
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DEF_MOD("ssi8", 1007, MOD_CLK_ID(1005)),
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DEF_MOD("ssi7", 1008, MOD_CLK_ID(1005)),
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DEF_MOD("ssi6", 1009, MOD_CLK_ID(1005)),
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DEF_MOD("ssi5", 1010, MOD_CLK_ID(1005)),
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DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)),
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DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)),
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DEF_MOD("ssi2", 1013, MOD_CLK_ID(1005)),
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DEF_MOD("ssi1", 1014, MOD_CLK_ID(1005)),
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DEF_MOD("ssi0", 1015, MOD_CLK_ID(1005)),
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DEF_MOD("dab", 1016, R8A77965_CLK_S0D6),
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DEF_MOD("scu-all", 1017, R8A77965_CLK_S3D4),
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DEF_MOD("scu-dvc1", 1018, MOD_CLK_ID(1017)),
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DEF_MOD("scu-dvc0", 1019, MOD_CLK_ID(1017)),
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DEF_MOD("scu-ctu1-mix1", 1020, MOD_CLK_ID(1017)),
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DEF_MOD("scu-ctu0-mix0", 1021, MOD_CLK_ID(1017)),
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DEF_MOD("scu-src9", 1022, MOD_CLK_ID(1017)),
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DEF_MOD("scu-src8", 1023, MOD_CLK_ID(1017)),
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DEF_MOD("scu-src7", 1024, MOD_CLK_ID(1017)),
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DEF_MOD("scu-src6", 1025, MOD_CLK_ID(1017)),
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DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)),
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DEF_MOD("scu-src4", 1027, MOD_CLK_ID(1017)),
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DEF_MOD("scu-src3", 1028, MOD_CLK_ID(1017)),
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DEF_MOD("scu-src2", 1029, MOD_CLK_ID(1017)),
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DEF_MOD("scu-src1", 1030, MOD_CLK_ID(1017)),
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DEF_MOD("scu-src0", 1031, MOD_CLK_ID(1017)),
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};
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static const unsigned int r8a77965_crit_mod_clks[] __initconst = {
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MOD_CLK_ID(402), /* RWDT */
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MOD_CLK_ID(408), /* INTC-AP (GIC) */
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};
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/*
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* CPG Clock Data
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*/
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/*
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* MD EXTAL PLL0 PLL1 PLL3 PLL4 OSC
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* 14 13 19 17 (MHz)
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*-----------------------------------------------------------------
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* 0 0 0 0 16.66 x 1 x180 x192 x192 x144 /16
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* 0 0 0 1 16.66 x 1 x180 x192 x128 x144 /16
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* 0 0 1 0 Prohibited setting
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* 0 0 1 1 16.66 x 1 x180 x192 x192 x144 /16
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* 0 1 0 0 20 x 1 x150 x160 x160 x120 /19
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* 0 1 0 1 20 x 1 x150 x160 x106 x120 /19
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* 0 1 1 0 Prohibited setting
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* 0 1 1 1 20 x 1 x150 x160 x160 x120 /19
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* 1 0 0 0 25 x 1 x120 x128 x128 x96 /24
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* 1 0 0 1 25 x 1 x120 x128 x84 x96 /24
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* 1 0 1 0 Prohibited setting
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* 1 0 1 1 25 x 1 x120 x128 x128 x96 /24
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* 1 1 0 0 33.33 / 2 x180 x192 x192 x144 /32
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* 1 1 0 1 33.33 / 2 x180 x192 x128 x144 /32
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* 1 1 1 0 Prohibited setting
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* 1 1 1 1 33.33 / 2 x180 x192 x192 x144 /32
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*/
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#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 11) | \
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(((md) & BIT(13)) >> 11) | \
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(((md) & BIT(19)) >> 18) | \
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(((md) & BIT(17)) >> 17))
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static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[16] __initconst = {
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/* EXTAL div PLL1 mult/div PLL3 mult/div OSC prediv */
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{ 1, 192, 1, 192, 1, 16, },
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{ 1, 192, 1, 128, 1, 16, },
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{ 0, /* Prohibited setting */ },
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{ 1, 192, 1, 192, 1, 16, },
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{ 1, 160, 1, 160, 1, 19, },
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{ 1, 160, 1, 106, 1, 19, },
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{ 0, /* Prohibited setting */ },
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{ 1, 160, 1, 160, 1, 19, },
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{ 1, 128, 1, 128, 1, 24, },
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{ 1, 128, 1, 84, 1, 24, },
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{ 0, /* Prohibited setting */ },
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{ 1, 128, 1, 128, 1, 24, },
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{ 2, 192, 1, 192, 1, 32, },
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{ 2, 192, 1, 128, 1, 32, },
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{ 0, /* Prohibited setting */ },
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{ 2, 192, 1, 192, 1, 32, },
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};
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static int __init r8a77965_cpg_mssr_init(struct device *dev)
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{
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const struct rcar_gen3_cpg_pll_config *cpg_pll_config;
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u32 cpg_mode;
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int error;
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error = rcar_rst_read_mode_pins(&cpg_mode);
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if (error)
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return error;
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cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
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if (!cpg_pll_config->extal_div) {
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dev_err(dev, "Prohibited setting (cpg_mode=0x%x)\n", cpg_mode);
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return -EINVAL;
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}
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return rcar_gen3_cpg_init(cpg_pll_config, CLK_EXTALR, cpg_mode);
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}
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const struct cpg_mssr_info r8a77965_cpg_mssr_info __initconst = {
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/* Core Clocks */
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.core_clks = r8a77965_core_clks,
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.num_core_clks = ARRAY_SIZE(r8a77965_core_clks),
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.last_dt_core_clk = LAST_DT_CORE_CLK,
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.num_total_core_clks = MOD_CLK_BASE,
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/* Module Clocks */
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.mod_clks = r8a77965_mod_clks,
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.num_mod_clks = ARRAY_SIZE(r8a77965_mod_clks),
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.num_hw_mod_clks = 12 * 32,
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/* Critical Module Clocks */
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.crit_mod_clks = r8a77965_crit_mod_clks,
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.num_crit_mod_clks = ARRAY_SIZE(r8a77965_crit_mod_clks),
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/* Callbacks */
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.init = r8a77965_cpg_mssr_init,
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.cpg_clk_register = rcar_gen3_cpg_clk_register,
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};
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