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linux/drivers/clk/renesas/r8a774c0-cpg-mssr.c
Takeshi Kihara b9df2ea2b8 clk: renesas: rcar-gen3: Correct parent clock of Audio-DMAC 
The clock sources of the AXI-bus clock (266.66 MHz) used for Audio-DMAC
DMA transfers are:

    Channel        R-Car H3    R-Car M3-W    R-Car M3-N    R-Car E3
    ---------------------------------------------------------------
    Audio-DMAC0    S1D2        S1D2          S1D2          S1D2
    Audio-DMAC1    S1D2        S1D2          S1D2          -

As a result, change the parent clocks of the Audio-DMAC{0,1} module
clocks on R-Car H3, R-Car M3-W, and R-Car M3-N to S1D2, and change the
parent clock of the Audio-DMAC0 module on R-Car E3 to S1D2.

NOTE: This information will be reflected in a future revision of the
      R-Car Gen3 Hardware Manual.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[geert: Update R-Car D3, RZ/G2M, and RZ/G2E]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2019-04-02 10:08:35 +02:00

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// SPDX-License-Identifier: GPL-2.0
/*
* r8a774c0 Clock Pulse Generator / Module Standby and Software Reset
*
* Copyright (C) 2018 Renesas Electronics Corp.
*
* Based on r8a77990-cpg-mssr.c
*
* Copyright (C) 2015 Glider bvba
* Copyright (C) 2015 Renesas Electronics Corp.
*/
#include <linux/device.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/soc/renesas/rcar-rst.h>
#include <dt-bindings/clock/r8a774c0-cpg-mssr.h>
#include "renesas-cpg-mssr.h"
#include "rcar-gen3-cpg.h"
enum clk_ids {
/* Core Clock Outputs exported to DT */
LAST_DT_CORE_CLK = R8A774C0_CLK_CANFD,
/* External Input Clocks */
CLK_EXTAL,
/* Internal Core Clocks */
CLK_MAIN,
CLK_PLL0,
CLK_PLL1,
CLK_PLL3,
CLK_PLL0D4,
CLK_PLL0D6,
CLK_PLL0D8,
CLK_PLL0D20,
CLK_PLL0D24,
CLK_PLL1D2,
CLK_PE,
CLK_S0,
CLK_S1,
CLK_S2,
CLK_S3,
CLK_SDSRC,
CLK_RINT,
CLK_OCO,
/* Module Clocks */
MOD_CLK_BASE
};
static const struct cpg_core_clk r8a774c0_core_clks[] __initconst = {
/* External Clock Inputs */
DEF_INPUT("extal", CLK_EXTAL),
/* Internal Core Clocks */
DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL),
DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN),
DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN),
DEF_FIXED(".pll0", CLK_PLL0, CLK_MAIN, 1, 100),
DEF_FIXED(".pll0d4", CLK_PLL0D4, CLK_PLL0, 4, 1),
DEF_FIXED(".pll0d6", CLK_PLL0D6, CLK_PLL0, 6, 1),
DEF_FIXED(".pll0d8", CLK_PLL0D8, CLK_PLL0, 8, 1),
DEF_FIXED(".pll0d20", CLK_PLL0D20, CLK_PLL0, 20, 1),
DEF_FIXED(".pll0d24", CLK_PLL0D24, CLK_PLL0, 24, 1),
DEF_FIXED(".pll1d2", CLK_PLL1D2, CLK_PLL1, 2, 1),
DEF_FIXED(".pe", CLK_PE, CLK_PLL0D20, 1, 1),
DEF_FIXED(".s0", CLK_S0, CLK_PLL1, 2, 1),
DEF_FIXED(".s1", CLK_S1, CLK_PLL1, 3, 1),
DEF_FIXED(".s2", CLK_S2, CLK_PLL1, 4, 1),
DEF_FIXED(".s3", CLK_S3, CLK_PLL1, 6, 1),
DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1, 2, 1),
DEF_DIV6_RO(".r", CLK_RINT, CLK_EXTAL, CPG_RCKCR, 32),
DEF_RATE(".oco", CLK_OCO, 8 * 1000 * 1000),
/* Core Clock Outputs */
DEF_FIXED("za2", R8A774C0_CLK_ZA2, CLK_PLL0D24, 1, 1),
DEF_FIXED("za8", R8A774C0_CLK_ZA8, CLK_PLL0D8, 1, 1),
DEF_GEN3_Z("z2", R8A774C0_CLK_Z2, CLK_TYPE_GEN3_Z, CLK_PLL0, 4, 8),
DEF_FIXED("ztr", R8A774C0_CLK_ZTR, CLK_PLL1, 6, 1),
DEF_FIXED("zt", R8A774C0_CLK_ZT, CLK_PLL1, 4, 1),
DEF_FIXED("zx", R8A774C0_CLK_ZX, CLK_PLL1, 3, 1),
DEF_FIXED("s0d1", R8A774C0_CLK_S0D1, CLK_S0, 1, 1),
DEF_FIXED("s0d3", R8A774C0_CLK_S0D3, CLK_S0, 3, 1),
DEF_FIXED("s0d6", R8A774C0_CLK_S0D6, CLK_S0, 6, 1),
DEF_FIXED("s0d12", R8A774C0_CLK_S0D12, CLK_S0, 12, 1),
DEF_FIXED("s0d24", R8A774C0_CLK_S0D24, CLK_S0, 24, 1),
DEF_FIXED("s1d1", R8A774C0_CLK_S1D1, CLK_S1, 1, 1),
DEF_FIXED("s1d2", R8A774C0_CLK_S1D2, CLK_S1, 2, 1),
DEF_FIXED("s1d4", R8A774C0_CLK_S1D4, CLK_S1, 4, 1),
DEF_FIXED("s2d1", R8A774C0_CLK_S2D1, CLK_S2, 1, 1),
DEF_FIXED("s2d2", R8A774C0_CLK_S2D2, CLK_S2, 2, 1),
DEF_FIXED("s2d4", R8A774C0_CLK_S2D4, CLK_S2, 4, 1),
DEF_FIXED("s3d1", R8A774C0_CLK_S3D1, CLK_S3, 1, 1),
DEF_FIXED("s3d2", R8A774C0_CLK_S3D2, CLK_S3, 2, 1),
DEF_FIXED("s3d4", R8A774C0_CLK_S3D4, CLK_S3, 4, 1),
DEF_GEN3_SD("sd0", R8A774C0_CLK_SD0, CLK_SDSRC, 0x0074),
DEF_GEN3_SD("sd1", R8A774C0_CLK_SD1, CLK_SDSRC, 0x0078),
DEF_GEN3_SD("sd3", R8A774C0_CLK_SD3, CLK_SDSRC, 0x026c),
DEF_FIXED("cl", R8A774C0_CLK_CL, CLK_PLL1, 48, 1),
DEF_FIXED("cp", R8A774C0_CLK_CP, CLK_EXTAL, 2, 1),
DEF_FIXED("cpex", R8A774C0_CLK_CPEX, CLK_EXTAL, 4, 1),
DEF_DIV6_RO("osc", R8A774C0_CLK_OSC, CLK_EXTAL, CPG_RCKCR, 8),
DEF_GEN3_PE("s0d6c", R8A774C0_CLK_S0D6C, CLK_S0, 6, CLK_PE, 2),
DEF_GEN3_PE("s3d1c", R8A774C0_CLK_S3D1C, CLK_S3, 1, CLK_PE, 1),
DEF_GEN3_PE("s3d2c", R8A774C0_CLK_S3D2C, CLK_S3, 2, CLK_PE, 2),
DEF_GEN3_PE("s3d4c", R8A774C0_CLK_S3D4C, CLK_S3, 4, CLK_PE, 4),
DEF_DIV6P1("canfd", R8A774C0_CLK_CANFD, CLK_PLL0D6, 0x244),
DEF_DIV6P1("csi0", R8A774C0_CLK_CSI0, CLK_PLL1D2, 0x00c),
DEF_DIV6P1("mso", R8A774C0_CLK_MSO, CLK_PLL1D2, 0x014),
DEF_GEN3_RCKSEL("r", R8A774C0_CLK_R, CLK_RINT, 1, CLK_OCO, 61 * 4),
};
static const struct mssr_mod_clk r8a774c0_mod_clks[] __initconst = {
DEF_MOD("tmu4", 121, R8A774C0_CLK_S0D6C),
DEF_MOD("tmu3", 122, R8A774C0_CLK_S3D2C),
DEF_MOD("tmu2", 123, R8A774C0_CLK_S3D2C),
DEF_MOD("tmu1", 124, R8A774C0_CLK_S3D2C),
DEF_MOD("tmu0", 125, R8A774C0_CLK_CP),
DEF_MOD("scif5", 202, R8A774C0_CLK_S3D4C),
DEF_MOD("scif4", 203, R8A774C0_CLK_S3D4C),
DEF_MOD("scif3", 204, R8A774C0_CLK_S3D4C),
DEF_MOD("scif1", 206, R8A774C0_CLK_S3D4C),
DEF_MOD("scif0", 207, R8A774C0_CLK_S3D4C),
DEF_MOD("msiof3", 208, R8A774C0_CLK_MSO),
DEF_MOD("msiof2", 209, R8A774C0_CLK_MSO),
DEF_MOD("msiof1", 210, R8A774C0_CLK_MSO),
DEF_MOD("msiof0", 211, R8A774C0_CLK_MSO),
DEF_MOD("sys-dmac2", 217, R8A774C0_CLK_S3D1),
DEF_MOD("sys-dmac1", 218, R8A774C0_CLK_S3D1),
DEF_MOD("sys-dmac0", 219, R8A774C0_CLK_S3D1),
DEF_MOD("cmt3", 300, R8A774C0_CLK_R),
DEF_MOD("cmt2", 301, R8A774C0_CLK_R),
DEF_MOD("cmt1", 302, R8A774C0_CLK_R),
DEF_MOD("cmt0", 303, R8A774C0_CLK_R),
DEF_MOD("scif2", 310, R8A774C0_CLK_S3D4C),
DEF_MOD("sdif3", 311, R8A774C0_CLK_SD3),
DEF_MOD("sdif1", 313, R8A774C0_CLK_SD1),
DEF_MOD("sdif0", 314, R8A774C0_CLK_SD0),
DEF_MOD("pcie0", 319, R8A774C0_CLK_S3D1),
DEF_MOD("usb3-if0", 328, R8A774C0_CLK_S3D1),
DEF_MOD("usb-dmac0", 330, R8A774C0_CLK_S3D1),
DEF_MOD("usb-dmac1", 331, R8A774C0_CLK_S3D1),
DEF_MOD("rwdt", 402, R8A774C0_CLK_R),
DEF_MOD("intc-ex", 407, R8A774C0_CLK_CP),
DEF_MOD("intc-ap", 408, R8A774C0_CLK_S0D3),
DEF_MOD("audmac0", 502, R8A774C0_CLK_S1D2),
DEF_MOD("hscif4", 516, R8A774C0_CLK_S3D1C),
DEF_MOD("hscif3", 517, R8A774C0_CLK_S3D1C),
DEF_MOD("hscif2", 518, R8A774C0_CLK_S3D1C),
DEF_MOD("hscif1", 519, R8A774C0_CLK_S3D1C),
DEF_MOD("hscif0", 520, R8A774C0_CLK_S3D1C),
DEF_MOD("thermal", 522, R8A774C0_CLK_CP),
DEF_MOD("pwm", 523, R8A774C0_CLK_S3D4C),
DEF_MOD("fcpvd1", 602, R8A774C0_CLK_S1D2),
DEF_MOD("fcpvd0", 603, R8A774C0_CLK_S1D2),
DEF_MOD("fcpvb0", 607, R8A774C0_CLK_S0D1),
DEF_MOD("fcpvi0", 611, R8A774C0_CLK_S0D1),
DEF_MOD("fcpf0", 615, R8A774C0_CLK_S0D1),
DEF_MOD("fcpcs", 619, R8A774C0_CLK_S0D1),
DEF_MOD("vspd1", 622, R8A774C0_CLK_S1D2),
DEF_MOD("vspd0", 623, R8A774C0_CLK_S1D2),
DEF_MOD("vspb", 626, R8A774C0_CLK_S0D1),
DEF_MOD("vspi0", 631, R8A774C0_CLK_S0D1),
DEF_MOD("ehci0", 703, R8A774C0_CLK_S3D2),
DEF_MOD("hsusb", 704, R8A774C0_CLK_S3D2),
DEF_MOD("csi40", 716, R8A774C0_CLK_CSI0),
DEF_MOD("du1", 723, R8A774C0_CLK_S1D1),
DEF_MOD("du0", 724, R8A774C0_CLK_S1D1),
DEF_MOD("lvds", 727, R8A774C0_CLK_S2D1),
DEF_MOD("vin5", 806, R8A774C0_CLK_S1D2),
DEF_MOD("vin4", 807, R8A774C0_CLK_S1D2),
DEF_MOD("etheravb", 812, R8A774C0_CLK_S3D2),
DEF_MOD("gpio6", 906, R8A774C0_CLK_S3D4),
DEF_MOD("gpio5", 907, R8A774C0_CLK_S3D4),
DEF_MOD("gpio4", 908, R8A774C0_CLK_S3D4),
DEF_MOD("gpio3", 909, R8A774C0_CLK_S3D4),
DEF_MOD("gpio2", 910, R8A774C0_CLK_S3D4),
DEF_MOD("gpio1", 911, R8A774C0_CLK_S3D4),
DEF_MOD("gpio0", 912, R8A774C0_CLK_S3D4),
DEF_MOD("can-fd", 914, R8A774C0_CLK_S3D2),
DEF_MOD("can-if1", 915, R8A774C0_CLK_S3D4),
DEF_MOD("can-if0", 916, R8A774C0_CLK_S3D4),
DEF_MOD("i2c6", 918, R8A774C0_CLK_S3D2),
DEF_MOD("i2c5", 919, R8A774C0_CLK_S3D2),
DEF_MOD("i2c-dvfs", 926, R8A774C0_CLK_CP),
DEF_MOD("i2c4", 927, R8A774C0_CLK_S3D2),
DEF_MOD("i2c3", 928, R8A774C0_CLK_S3D2),
DEF_MOD("i2c2", 929, R8A774C0_CLK_S3D2),
DEF_MOD("i2c1", 930, R8A774C0_CLK_S3D2),
DEF_MOD("i2c0", 931, R8A774C0_CLK_S3D2),
DEF_MOD("i2c7", 1003, R8A774C0_CLK_S3D2),
DEF_MOD("ssi-all", 1005, R8A774C0_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, R8A774C0_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 unsigned int r8a774c0_crit_mod_clks[] __initconst = {
MOD_CLK_ID(408), /* INTC-AP (GIC) */
};
/*
* CPG Clock Data
*/
/*
* MD19 EXTAL (MHz) PLL0 PLL1 PLL3
*--------------------------------------------------------------------
* 0 48 x 1 x100/1 x100/3 x100/3
* 1 48 x 1 x100/1 x100/3 x58/3
*/
#define CPG_PLL_CONFIG_INDEX(md) (((md) & BIT(19)) >> 19)
static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[2] __initconst = {
/* EXTAL div PLL1 mult/div PLL3 mult/div */
{ 1, 100, 3, 100, 3, },
{ 1, 100, 3, 58, 3, },
};
static int __init r8a774c0_cpg_mssr_init(struct device *dev)
{
const struct rcar_gen3_cpg_pll_config *cpg_pll_config;
u32 cpg_mode;
int error;
error = rcar_rst_read_mode_pins(&cpg_mode);
if (error)
return error;
cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
return rcar_gen3_cpg_init(cpg_pll_config, 0, cpg_mode);
}
const struct cpg_mssr_info r8a774c0_cpg_mssr_info __initconst = {
/* Core Clocks */
.core_clks = r8a774c0_core_clks,
.num_core_clks = ARRAY_SIZE(r8a774c0_core_clks),
.last_dt_core_clk = LAST_DT_CORE_CLK,
.num_total_core_clks = MOD_CLK_BASE,
/* Module Clocks */
.mod_clks = r8a774c0_mod_clks,
.num_mod_clks = ARRAY_SIZE(r8a774c0_mod_clks),
.num_hw_mod_clks = 12 * 32,
/* Critical Module Clocks */
.crit_mod_clks = r8a774c0_crit_mod_clks,
.num_crit_mod_clks = ARRAY_SIZE(r8a774c0_crit_mod_clks),
/* Callbacks */
.init = r8a774c0_cpg_mssr_init,
.cpg_clk_register = rcar_gen3_cpg_clk_register,
};
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