linux-stable/drivers/clk/renesas/r8a774b1-cpg-mssr.c
Geert Uytterhoeven 880c3fa319 clk: renesas: Move RPC core clocks
The RPC and RPCD2 core clocks were added to the sections for internal
core clocks, while they are core clock outputs, visible from DT.

Move them to the correct sections.
Rename the ".rpc" clock on R-Car S4 to "rpc".
Fixup nearby whitespace to increase uniformity.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/a938b938f00939b9206d7fbaba78e2ef09915f5f.1649681891.git.geert+renesas@glider.be
2022-04-13 12:27:45 +02:00

339 lines
13 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* r8a774b1 Clock Pulse Generator / Module Standby and Software Reset
*
* Copyright (C) 2019 Renesas Electronics Corp.
*
* Based on r8a7796-cpg-mssr.c
*
* Copyright (C) 2016 Glider bvba
*/
#include <linux/device.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/soc/renesas/rcar-rst.h>
#include <dt-bindings/clock/r8a774b1-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 = R8A774B1_CLK_CANFD,
/* External Input Clocks */
CLK_EXTAL,
CLK_EXTALR,
/* Internal Core Clocks */
CLK_MAIN,
CLK_PLL0,
CLK_PLL1,
CLK_PLL3,
CLK_PLL4,
CLK_PLL1_DIV2,
CLK_PLL1_DIV4,
CLK_S0,
CLK_S1,
CLK_S2,
CLK_S3,
CLK_SDSRC,
CLK_RPCSRC,
CLK_RINT,
/* Module Clocks */
MOD_CLK_BASE
};
static const struct cpg_core_clk r8a774b1_core_clks[] __initconst = {
/* 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(".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),
DEF_BASE(".rpcsrc", CLK_RPCSRC, CLK_TYPE_GEN3_RPCSRC, CLK_PLL1),
DEF_GEN3_OSC(".r", CLK_RINT, CLK_EXTAL, 32),
/* Core Clock Outputs */
DEF_GEN3_Z("z", R8A774B1_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0, 2, 8),
DEF_FIXED("ztr", R8A774B1_CLK_ZTR, CLK_PLL1_DIV2, 6, 1),
DEF_FIXED("ztrd2", R8A774B1_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
DEF_FIXED("zt", R8A774B1_CLK_ZT, CLK_PLL1_DIV2, 4, 1),
DEF_FIXED("zx", R8A774B1_CLK_ZX, CLK_PLL1_DIV2, 2, 1),
DEF_FIXED("s0d1", R8A774B1_CLK_S0D1, CLK_S0, 1, 1),
DEF_FIXED("s0d2", R8A774B1_CLK_S0D2, CLK_S0, 2, 1),
DEF_FIXED("s0d3", R8A774B1_CLK_S0D3, CLK_S0, 3, 1),
DEF_FIXED("s0d4", R8A774B1_CLK_S0D4, CLK_S0, 4, 1),
DEF_FIXED("s0d6", R8A774B1_CLK_S0D6, CLK_S0, 6, 1),
DEF_FIXED("s0d8", R8A774B1_CLK_S0D8, CLK_S0, 8, 1),
DEF_FIXED("s0d12", R8A774B1_CLK_S0D12, CLK_S0, 12, 1),
DEF_FIXED("s1d2", R8A774B1_CLK_S1D2, CLK_S1, 2, 1),
DEF_FIXED("s1d4", R8A774B1_CLK_S1D4, CLK_S1, 4, 1),
DEF_FIXED("s2d1", R8A774B1_CLK_S2D1, CLK_S2, 1, 1),
DEF_FIXED("s2d2", R8A774B1_CLK_S2D2, CLK_S2, 2, 1),
DEF_FIXED("s2d4", R8A774B1_CLK_S2D4, CLK_S2, 4, 1),
DEF_FIXED("s3d1", R8A774B1_CLK_S3D1, CLK_S3, 1, 1),
DEF_FIXED("s3d2", R8A774B1_CLK_S3D2, CLK_S3, 2, 1),
DEF_FIXED("s3d4", R8A774B1_CLK_S3D4, CLK_S3, 4, 1),
DEF_GEN3_SDH("sd0h", R8A774B1_CLK_SD0H, CLK_SDSRC, 0x074),
DEF_GEN3_SDH("sd1h", R8A774B1_CLK_SD1H, CLK_SDSRC, 0x078),
DEF_GEN3_SDH("sd2h", R8A774B1_CLK_SD2H, CLK_SDSRC, 0x268),
DEF_GEN3_SDH("sd3h", R8A774B1_CLK_SD3H, CLK_SDSRC, 0x26c),
DEF_GEN3_SD("sd0", R8A774B1_CLK_SD0, R8A774B1_CLK_SD0H, 0x074),
DEF_GEN3_SD("sd1", R8A774B1_CLK_SD1, R8A774B1_CLK_SD1H, 0x078),
DEF_GEN3_SD("sd2", R8A774B1_CLK_SD2, R8A774B1_CLK_SD2H, 0x268),
DEF_GEN3_SD("sd3", R8A774B1_CLK_SD3, R8A774B1_CLK_SD3H, 0x26c),
DEF_BASE("rpc", R8A774B1_CLK_RPC, CLK_TYPE_GEN3_RPC, CLK_RPCSRC),
DEF_BASE("rpcd2", R8A774B1_CLK_RPCD2, CLK_TYPE_GEN3_RPCD2, R8A774B1_CLK_RPC),
DEF_FIXED("cl", R8A774B1_CLK_CL, CLK_PLL1_DIV2, 48, 1),
DEF_FIXED("cp", R8A774B1_CLK_CP, CLK_EXTAL, 2, 1),
DEF_FIXED("cpex", R8A774B1_CLK_CPEX, CLK_EXTAL, 2, 1),
DEF_DIV6P1("canfd", R8A774B1_CLK_CANFD, CLK_PLL1_DIV4, 0x244),
DEF_DIV6P1("csi0", R8A774B1_CLK_CSI0, CLK_PLL1_DIV4, 0x00c),
DEF_DIV6P1("mso", R8A774B1_CLK_MSO, CLK_PLL1_DIV4, 0x014),
DEF_DIV6P1("hdmi", R8A774B1_CLK_HDMI, CLK_PLL1_DIV4, 0x250),
DEF_GEN3_OSC("osc", R8A774B1_CLK_OSC, CLK_EXTAL, 8),
DEF_BASE("r", R8A774B1_CLK_R, CLK_TYPE_GEN3_R, CLK_RINT),
};
static const struct mssr_mod_clk r8a774b1_mod_clks[] __initconst = {
DEF_MOD("tmu4", 121, R8A774B1_CLK_S0D6),
DEF_MOD("tmu3", 122, R8A774B1_CLK_S3D2),
DEF_MOD("tmu2", 123, R8A774B1_CLK_S3D2),
DEF_MOD("tmu1", 124, R8A774B1_CLK_S3D2),
DEF_MOD("tmu0", 125, R8A774B1_CLK_CP),
DEF_MOD("fdp1-0", 119, R8A774B1_CLK_S0D1),
DEF_MOD("scif5", 202, R8A774B1_CLK_S3D4),
DEF_MOD("scif4", 203, R8A774B1_CLK_S3D4),
DEF_MOD("scif3", 204, R8A774B1_CLK_S3D4),
DEF_MOD("scif1", 206, R8A774B1_CLK_S3D4),
DEF_MOD("scif0", 207, R8A774B1_CLK_S3D4),
DEF_MOD("msiof3", 208, R8A774B1_CLK_MSO),
DEF_MOD("msiof2", 209, R8A774B1_CLK_MSO),
DEF_MOD("msiof1", 210, R8A774B1_CLK_MSO),
DEF_MOD("msiof0", 211, R8A774B1_CLK_MSO),
DEF_MOD("sys-dmac2", 217, R8A774B1_CLK_S3D1),
DEF_MOD("sys-dmac1", 218, R8A774B1_CLK_S3D1),
DEF_MOD("sys-dmac0", 219, R8A774B1_CLK_S0D3),
DEF_MOD("cmt3", 300, R8A774B1_CLK_R),
DEF_MOD("cmt2", 301, R8A774B1_CLK_R),
DEF_MOD("cmt1", 302, R8A774B1_CLK_R),
DEF_MOD("cmt0", 303, R8A774B1_CLK_R),
DEF_MOD("tpu0", 304, R8A774B1_CLK_S3D4),
DEF_MOD("scif2", 310, R8A774B1_CLK_S3D4),
DEF_MOD("sdif3", 311, R8A774B1_CLK_SD3),
DEF_MOD("sdif2", 312, R8A774B1_CLK_SD2),
DEF_MOD("sdif1", 313, R8A774B1_CLK_SD1),
DEF_MOD("sdif0", 314, R8A774B1_CLK_SD0),
DEF_MOD("pcie1", 318, R8A774B1_CLK_S3D1),
DEF_MOD("pcie0", 319, R8A774B1_CLK_S3D1),
DEF_MOD("usb3-if0", 328, R8A774B1_CLK_S3D1),
DEF_MOD("usb-dmac0", 330, R8A774B1_CLK_S3D1),
DEF_MOD("usb-dmac1", 331, R8A774B1_CLK_S3D1),
DEF_MOD("rwdt", 402, R8A774B1_CLK_R),
DEF_MOD("intc-ex", 407, R8A774B1_CLK_CP),
DEF_MOD("intc-ap", 408, R8A774B1_CLK_S0D3),
DEF_MOD("audmac1", 501, R8A774B1_CLK_S1D2),
DEF_MOD("audmac0", 502, R8A774B1_CLK_S1D2),
DEF_MOD("hscif4", 516, R8A774B1_CLK_S3D1),
DEF_MOD("hscif3", 517, R8A774B1_CLK_S3D1),
DEF_MOD("hscif2", 518, R8A774B1_CLK_S3D1),
DEF_MOD("hscif1", 519, R8A774B1_CLK_S3D1),
DEF_MOD("hscif0", 520, R8A774B1_CLK_S3D1),
DEF_MOD("thermal", 522, R8A774B1_CLK_CP),
DEF_MOD("pwm", 523, R8A774B1_CLK_S0D12),
DEF_MOD("fcpvd1", 602, R8A774B1_CLK_S0D2),
DEF_MOD("fcpvd0", 603, R8A774B1_CLK_S0D2),
DEF_MOD("fcpvb0", 607, R8A774B1_CLK_S0D1),
DEF_MOD("fcpvi0", 611, R8A774B1_CLK_S0D1),
DEF_MOD("fcpf0", 615, R8A774B1_CLK_S0D1),
DEF_MOD("fcpcs", 619, R8A774B1_CLK_S0D2),
DEF_MOD("vspd1", 622, R8A774B1_CLK_S0D2),
DEF_MOD("vspd0", 623, R8A774B1_CLK_S0D2),
DEF_MOD("vspb", 626, R8A774B1_CLK_S0D1),
DEF_MOD("vspi0", 631, R8A774B1_CLK_S0D1),
DEF_MOD("ehci1", 702, R8A774B1_CLK_S3D2),
DEF_MOD("ehci0", 703, R8A774B1_CLK_S3D2),
DEF_MOD("hsusb", 704, R8A774B1_CLK_S3D2),
DEF_MOD("csi20", 714, R8A774B1_CLK_CSI0),
DEF_MOD("csi40", 716, R8A774B1_CLK_CSI0),
DEF_MOD("du3", 721, R8A774B1_CLK_S2D1),
DEF_MOD("du1", 723, R8A774B1_CLK_S2D1),
DEF_MOD("du0", 724, R8A774B1_CLK_S2D1),
DEF_MOD("lvds", 727, R8A774B1_CLK_S2D1),
DEF_MOD("hdmi0", 729, R8A774B1_CLK_HDMI),
DEF_MOD("vin7", 804, R8A774B1_CLK_S0D2),
DEF_MOD("vin6", 805, R8A774B1_CLK_S0D2),
DEF_MOD("vin5", 806, R8A774B1_CLK_S0D2),
DEF_MOD("vin4", 807, R8A774B1_CLK_S0D2),
DEF_MOD("vin3", 808, R8A774B1_CLK_S0D2),
DEF_MOD("vin2", 809, R8A774B1_CLK_S0D2),
DEF_MOD("vin1", 810, R8A774B1_CLK_S0D2),
DEF_MOD("vin0", 811, R8A774B1_CLK_S0D2),
DEF_MOD("etheravb", 812, R8A774B1_CLK_S0D6),
DEF_MOD("sata0", 815, R8A774B1_CLK_S3D2),
DEF_MOD("gpio7", 905, R8A774B1_CLK_S3D4),
DEF_MOD("gpio6", 906, R8A774B1_CLK_S3D4),
DEF_MOD("gpio5", 907, R8A774B1_CLK_S3D4),
DEF_MOD("gpio4", 908, R8A774B1_CLK_S3D4),
DEF_MOD("gpio3", 909, R8A774B1_CLK_S3D4),
DEF_MOD("gpio2", 910, R8A774B1_CLK_S3D4),
DEF_MOD("gpio1", 911, R8A774B1_CLK_S3D4),
DEF_MOD("gpio0", 912, R8A774B1_CLK_S3D4),
DEF_MOD("can-fd", 914, R8A774B1_CLK_S3D2),
DEF_MOD("can-if1", 915, R8A774B1_CLK_S3D4),
DEF_MOD("can-if0", 916, R8A774B1_CLK_S3D4),
DEF_MOD("rpc-if", 917, R8A774B1_CLK_RPCD2),
DEF_MOD("i2c6", 918, R8A774B1_CLK_S0D6),
DEF_MOD("i2c5", 919, R8A774B1_CLK_S0D6),
DEF_MOD("iic-pmic", 926, R8A774B1_CLK_CP),
DEF_MOD("i2c4", 927, R8A774B1_CLK_S0D6),
DEF_MOD("i2c3", 928, R8A774B1_CLK_S0D6),
DEF_MOD("i2c2", 929, R8A774B1_CLK_S3D2),
DEF_MOD("i2c1", 930, R8A774B1_CLK_S3D2),
DEF_MOD("i2c0", 931, R8A774B1_CLK_S3D2),
DEF_MOD("ssi-all", 1005, R8A774B1_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, R8A774B1_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 r8a774b1_crit_mod_clks[] __initconst = {
MOD_CLK_ID(402), /* RWDT */
MOD_CLK_ID(408), /* INTC-AP (GIC) */
};
/*
* CPG Clock Data
*/
/*
* MD EXTAL PLL0 PLL1 PLL3 PLL4 OSC
* 14 13 19 17 (MHz)
*-----------------------------------------------------------------
* 0 0 0 0 16.66 x 1 x180 x192 x192 x144 /16
* 0 0 0 1 16.66 x 1 x180 x192 x128 x144 /16
* 0 0 1 0 Prohibited setting
* 0 0 1 1 16.66 x 1 x180 x192 x192 x144 /16
* 0 1 0 0 20 x 1 x150 x160 x160 x120 /19
* 0 1 0 1 20 x 1 x150 x160 x106 x120 /19
* 0 1 1 0 Prohibited setting
* 0 1 1 1 20 x 1 x150 x160 x160 x120 /19
* 1 0 0 0 25 x 1 x120 x128 x128 x96 /24
* 1 0 0 1 25 x 1 x120 x128 x84 x96 /24
* 1 0 1 0 Prohibited setting
* 1 0 1 1 25 x 1 x120 x128 x128 x96 /24
* 1 1 0 0 33.33 / 2 x180 x192 x192 x144 /32
* 1 1 0 1 33.33 / 2 x180 x192 x128 x144 /32
* 1 1 1 0 Prohibited setting
* 1 1 1 1 33.33 / 2 x180 x192 x192 x144 /32
*/
#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] __initconst = {
/* EXTAL div PLL1 mult/div PLL3 mult/div OSC prediv */
{ 1, 192, 1, 192, 1, 16, },
{ 1, 192, 1, 128, 1, 16, },
{ 0, /* Prohibited setting */ },
{ 1, 192, 1, 192, 1, 16, },
{ 1, 160, 1, 160, 1, 19, },
{ 1, 160, 1, 106, 1, 19, },
{ 0, /* Prohibited setting */ },
{ 1, 160, 1, 160, 1, 19, },
{ 1, 128, 1, 128, 1, 24, },
{ 1, 128, 1, 84, 1, 24, },
{ 0, /* Prohibited setting */ },
{ 1, 128, 1, 128, 1, 24, },
{ 2, 192, 1, 192, 1, 32, },
{ 2, 192, 1, 128, 1, 32, },
{ 0, /* Prohibited setting */ },
{ 2, 192, 1, 192, 1, 32, },
};
static int __init r8a774b1_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)];
if (!cpg_pll_config->extal_div) {
dev_err(dev, "Prohibited setting (cpg_mode=0x%x)\n", cpg_mode);
return -EINVAL;
}
return rcar_gen3_cpg_init(cpg_pll_config, CLK_EXTALR, cpg_mode);
}
const struct cpg_mssr_info r8a774b1_cpg_mssr_info __initconst = {
/* Core Clocks */
.core_clks = r8a774b1_core_clks,
.num_core_clks = ARRAY_SIZE(r8a774b1_core_clks),
.last_dt_core_clk = LAST_DT_CORE_CLK,
.num_total_core_clks = MOD_CLK_BASE,
/* Module Clocks */
.mod_clks = r8a774b1_mod_clks,
.num_mod_clks = ARRAY_SIZE(r8a774b1_mod_clks),
.num_hw_mod_clks = 12 * 32,
/* Critical Module Clocks */
.crit_mod_clks = r8a774b1_crit_mod_clks,
.num_crit_mod_clks = ARRAY_SIZE(r8a774b1_crit_mod_clks),
/* Callbacks */
.init = r8a774b1_cpg_mssr_init,
.cpg_clk_register = rcar_gen3_cpg_clk_register,
};