237 lines
8.4 KiB
C
237 lines
8.4 KiB
C
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/*
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* r8a77995 Clock Pulse Generator / Module Standby and Software Reset
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*
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* Copyright (C) 2017 Glider bvba
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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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/r8a77995-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 = R8A77995_CLK_CP,
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/* External Input Clocks */
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CLK_EXTAL,
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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_PLL0D2,
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CLK_PLL0D3,
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CLK_PLL0D5,
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CLK_PLL1D2,
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CLK_PE,
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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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/* Module Clocks */
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MOD_CLK_BASE
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};
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static const struct cpg_core_clk r8a77995_core_clks[] __initconst = {
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/* External Clock Inputs */
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DEF_INPUT("extal", CLK_EXTAL),
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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(".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_FIXED(".pll0", CLK_PLL0, CLK_MAIN, 4, 250),
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DEF_FIXED(".pll0d2", CLK_PLL0D2, CLK_PLL0, 2, 1),
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DEF_FIXED(".pll0d3", CLK_PLL0D3, CLK_PLL0, 3, 1),
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DEF_FIXED(".pll0d5", CLK_PLL0D5, CLK_PLL0, 5, 1),
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DEF_FIXED(".pll1d2", CLK_PLL1D2, CLK_PLL1, 2, 1),
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DEF_FIXED(".pe", CLK_PE, CLK_PLL0D3, 4, 1),
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DEF_FIXED(".s0", CLK_S0, CLK_PLL1, 2, 1),
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DEF_FIXED(".s1", CLK_S1, CLK_PLL1, 3, 1),
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DEF_FIXED(".s2", CLK_S2, CLK_PLL1, 4, 1),
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DEF_FIXED(".s3", CLK_S3, CLK_PLL1, 6, 1),
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DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1, 2, 1),
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/* Core Clock Outputs */
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DEF_FIXED("z2", R8A77995_CLK_Z2, CLK_PLL0D3, 1, 1),
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DEF_FIXED("ztr", R8A77995_CLK_ZTR, CLK_PLL1, 6, 1),
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DEF_FIXED("zt", R8A77995_CLK_ZT, CLK_PLL1, 4, 1),
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DEF_FIXED("zx", R8A77995_CLK_ZX, CLK_PLL1, 3, 1),
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DEF_FIXED("s0d1", R8A77995_CLK_S0D1, CLK_S0, 1, 1),
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DEF_FIXED("s1d1", R8A77995_CLK_S1D1, CLK_S1, 1, 1),
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DEF_FIXED("s1d2", R8A77995_CLK_S1D2, CLK_S1, 2, 1),
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DEF_FIXED("s1d4", R8A77995_CLK_S1D4, CLK_S1, 4, 1),
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DEF_FIXED("s2d1", R8A77995_CLK_S2D1, CLK_S2, 1, 1),
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DEF_FIXED("s2d2", R8A77995_CLK_S2D2, CLK_S2, 2, 1),
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DEF_FIXED("s2d4", R8A77995_CLK_S2D4, CLK_S2, 4, 1),
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DEF_FIXED("s3d1", R8A77995_CLK_S3D1, CLK_S3, 1, 1),
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DEF_FIXED("s3d2", R8A77995_CLK_S3D2, CLK_S3, 2, 1),
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DEF_FIXED("s3d4", R8A77995_CLK_S3D4, CLK_S3, 4, 1),
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DEF_FIXED("cl", R8A77995_CLK_CL, CLK_PLL1, 48, 1),
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DEF_FIXED("cp", R8A77995_CLK_CP, CLK_EXTAL, 2, 1),
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DEF_FIXED("osc", R8A77995_CLK_OSC, CLK_EXTAL, 384, 1),
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DEF_FIXED("r", R8A77995_CLK_R, CLK_EXTAL, 1536, 1),
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DEF_GEN3_PE("s1d4c", R8A77995_CLK_S1D4C, CLK_S1, 4, CLK_PE, 2),
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DEF_GEN3_PE("s3d1c", R8A77995_CLK_S3D1C, CLK_S3, 1, CLK_PE, 1),
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DEF_GEN3_PE("s3d2c", R8A77995_CLK_S3D2C, CLK_S3, 2, CLK_PE, 2),
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DEF_GEN3_PE("s3d4c", R8A77995_CLK_S3D4C, CLK_S3, 4, CLK_PE, 4),
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DEF_GEN3_SD("sd0", R8A77995_CLK_SD0, CLK_SDSRC, 0x268),
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DEF_DIV6P1("canfd", R8A77995_CLK_CANFD, CLK_PLL0D3, 0x244),
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DEF_DIV6P1("mso", R8A77995_CLK_MSO, CLK_PLL1D2, 0x014),
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};
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static const struct mssr_mod_clk r8a77995_mod_clks[] __initconst = {
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DEF_MOD("scif5", 202, R8A77995_CLK_S3D4C),
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DEF_MOD("scif4", 203, R8A77995_CLK_S3D4C),
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DEF_MOD("scif3", 204, R8A77995_CLK_S3D4C),
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DEF_MOD("scif1", 206, R8A77995_CLK_S3D4C),
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DEF_MOD("scif0", 207, R8A77995_CLK_S3D4C),
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DEF_MOD("msiof3", 208, R8A77995_CLK_MSO),
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DEF_MOD("msiof2", 209, R8A77995_CLK_MSO),
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DEF_MOD("msiof1", 210, R8A77995_CLK_MSO),
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DEF_MOD("msiof0", 211, R8A77995_CLK_MSO),
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DEF_MOD("sys-dmac2", 217, R8A77995_CLK_S3D1),
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DEF_MOD("sys-dmac1", 218, R8A77995_CLK_S3D1),
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DEF_MOD("sys-dmac0", 219, R8A77995_CLK_S3D1),
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DEF_MOD("cmt3", 300, R8A77995_CLK_R),
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DEF_MOD("cmt2", 301, R8A77995_CLK_R),
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DEF_MOD("cmt1", 302, R8A77995_CLK_R),
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DEF_MOD("cmt0", 303, R8A77995_CLK_R),
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DEF_MOD("scif2", 310, R8A77995_CLK_S3D4C),
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DEF_MOD("emmc0", 312, R8A77995_CLK_SD0),
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DEF_MOD("usb-dmac0", 330, R8A77995_CLK_S3D1),
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DEF_MOD("usb-dmac1", 331, R8A77995_CLK_S3D1),
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DEF_MOD("rwdt", 402, R8A77995_CLK_R),
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DEF_MOD("intc-ex", 407, R8A77995_CLK_CP),
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DEF_MOD("intc-ap", 408, R8A77995_CLK_S1D2),
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DEF_MOD("audmac0", 502, R8A77995_CLK_S3D1),
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DEF_MOD("hscif3", 517, R8A77995_CLK_S3D1C),
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DEF_MOD("hscif0", 520, R8A77995_CLK_S3D1C),
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DEF_MOD("thermal", 522, R8A77995_CLK_CP),
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DEF_MOD("pwm", 523, R8A77995_CLK_S3D4C),
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DEF_MOD("fcpvd1", 602, R8A77995_CLK_S1D2),
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DEF_MOD("fcpvd0", 603, R8A77995_CLK_S1D2),
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DEF_MOD("fcpvbs", 607, R8A77995_CLK_S0D1),
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DEF_MOD("vspd1", 622, R8A77995_CLK_S1D2),
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DEF_MOD("vspd0", 623, R8A77995_CLK_S1D2),
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DEF_MOD("vspbs", 627, R8A77995_CLK_S0D1),
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DEF_MOD("ehci0", 703, R8A77995_CLK_S3D2),
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DEF_MOD("hsusb", 704, R8A77995_CLK_S3D2),
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DEF_MOD("du1", 723, R8A77995_CLK_S2D1),
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DEF_MOD("du0", 724, R8A77995_CLK_S2D1),
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DEF_MOD("lvds", 727, R8A77995_CLK_S2D1),
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DEF_MOD("vin7", 804, R8A77995_CLK_S1D2),
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DEF_MOD("vin6", 805, R8A77995_CLK_S1D2),
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DEF_MOD("vin5", 806, R8A77995_CLK_S1D2),
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DEF_MOD("vin4", 807, R8A77995_CLK_S1D2),
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DEF_MOD("etheravb", 812, R8A77995_CLK_S3D2),
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DEF_MOD("imr0", 823, R8A77995_CLK_S1D2),
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DEF_MOD("gpio6", 906, R8A77995_CLK_S3D4),
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DEF_MOD("gpio5", 907, R8A77995_CLK_S3D4),
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DEF_MOD("gpio4", 908, R8A77995_CLK_S3D4),
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DEF_MOD("gpio3", 909, R8A77995_CLK_S3D4),
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DEF_MOD("gpio2", 910, R8A77995_CLK_S3D4),
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DEF_MOD("gpio1", 911, R8A77995_CLK_S3D4),
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DEF_MOD("gpio0", 912, R8A77995_CLK_S3D4),
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DEF_MOD("can-fd", 914, R8A77995_CLK_S3D2),
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DEF_MOD("can-if1", 915, R8A77995_CLK_S3D4),
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DEF_MOD("can-if0", 916, R8A77995_CLK_S3D4),
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DEF_MOD("i2c3", 928, R8A77995_CLK_S3D2),
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DEF_MOD("i2c2", 929, R8A77995_CLK_S3D2),
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DEF_MOD("i2c1", 930, R8A77995_CLK_S3D2),
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DEF_MOD("i2c0", 931, R8A77995_CLK_S3D2),
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DEF_MOD("ssi-all", 1005, R8A77995_CLK_S3D4),
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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("scu-all", 1017, R8A77995_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-src6", 1025, MOD_CLK_ID(1017)),
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DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)),
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};
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static const unsigned int r8a77995_crit_mod_clks[] __initconst = {
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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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* MD19 EXTAL (MHz) PLL0 PLL1 PLL3
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*--------------------------------------------------------------------
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* 0 48 x 1 x250/4 x100/3 x100/3
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* 1 48 x 1 x250/4 x100/3 x116/6
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*/
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#define CPG_PLL_CONFIG_INDEX(md) (((md) & BIT(19)) >> 19)
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static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[2] __initconst = {
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/* EXTAL div PLL1 mult/div PLL3 mult/div */
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{ 1, 100, 3, 100, 3, },
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{ 1, 100, 3, 116, 6, },
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};
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static int __init r8a77995_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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return rcar_gen3_cpg_init(cpg_pll_config, 0, cpg_mode);
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}
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const struct cpg_mssr_info r8a77995_cpg_mssr_info __initconst = {
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/* Core Clocks */
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.core_clks = r8a77995_core_clks,
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.num_core_clks = ARRAY_SIZE(r8a77995_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 = r8a77995_mod_clks,
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.num_mod_clks = ARRAY_SIZE(r8a77995_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 = r8a77995_crit_mod_clks,
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.num_crit_mod_clks = ARRAY_SIZE(r8a77995_crit_mod_clks),
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/* Callbacks */
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.init = r8a77995_cpg_mssr_init,
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.cpg_clk_register = rcar_gen3_cpg_clk_register,
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};
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