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linux-next/drivers/clk/renesas/r8a77470-cpg-mssr.c
Biju Das 5bf2fbbef5 clk: renesas: cpg-mssr: Add r8a77470 support 
Add RZ/G1C (R8A77470) Clock Pulse Generator / Module Standby and Software
Reset support.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2018-04-16 13:39:40 +02:00

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7.9 KiB
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// SPDX-License-Identifier: GPL-2.0
/*
* r8a77470 Clock Pulse Generator / Module Standby and Software Reset
*
* Copyright (C) 2018 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/r8a77470-cpg-mssr.h>
#include "renesas-cpg-mssr.h"
#include "rcar-gen2-cpg.h"
enum clk_ids {
/* Core Clock Outputs exported to DT */
LAST_DT_CORE_CLK = R8A77470_CLK_OSC,
/* External Input Clocks */
CLK_EXTAL,
CLK_USB_EXTAL,
/* Internal Core Clocks */
CLK_MAIN,
CLK_PLL0,
CLK_PLL1,
CLK_PLL3,
CLK_PLL1_DIV2,
/* Module Clocks */
MOD_CLK_BASE
};
static const struct cpg_core_clk r8a77470_core_clks[] __initconst = {
/* External Clock Inputs */
DEF_INPUT("extal", CLK_EXTAL),
DEF_INPUT("usb_extal", CLK_USB_EXTAL),
/* Internal Core Clocks */
DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN2_MAIN, CLK_EXTAL),
DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN2_PLL0, CLK_MAIN),
DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN2_PLL1, CLK_MAIN),
DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN2_PLL3, CLK_MAIN),
DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1),
/* Core Clock Outputs */
DEF_BASE("sdh", R8A77470_CLK_SDH, CLK_TYPE_GEN2_SDH, CLK_PLL1),
DEF_BASE("sd0", R8A77470_CLK_SD0, CLK_TYPE_GEN2_SD0, CLK_PLL1),
DEF_BASE("sd1", R8A77470_CLK_SD1, CLK_TYPE_GEN2_SD1, CLK_PLL1),
DEF_BASE("qspi", R8A77470_CLK_QSPI, CLK_TYPE_GEN2_QSPI, CLK_PLL1_DIV2),
DEF_BASE("rcan", R8A77470_CLK_RCAN, CLK_TYPE_GEN2_RCAN, CLK_USB_EXTAL),
DEF_FIXED("z2", R8A77470_CLK_Z2, CLK_PLL0, 1, 1),
DEF_FIXED("zx", R8A77470_CLK_ZX, CLK_PLL1, 3, 1),
DEF_FIXED("zs", R8A77470_CLK_ZS, CLK_PLL1, 6, 1),
DEF_FIXED("hp", R8A77470_CLK_HP, CLK_PLL1, 12, 1),
DEF_FIXED("b", R8A77470_CLK_B, CLK_PLL1, 12, 1),
DEF_FIXED("lb", R8A77470_CLK_LB, CLK_PLL1, 24, 1),
DEF_FIXED("p", R8A77470_CLK_P, CLK_PLL1, 24, 1),
DEF_FIXED("cl", R8A77470_CLK_CL, CLK_PLL1, 48, 1),
DEF_FIXED("cp", R8A77470_CLK_CP, CLK_PLL1, 48, 1),
DEF_FIXED("m2", R8A77470_CLK_M2, CLK_PLL1, 8, 1),
DEF_FIXED("zb3", R8A77470_CLK_ZB3, CLK_PLL3, 4, 1),
DEF_FIXED("mp", R8A77470_CLK_MP, CLK_PLL1_DIV2, 15, 1),
DEF_FIXED("cpex", R8A77470_CLK_CPEX, CLK_EXTAL, 2, 1),
DEF_FIXED("r", R8A77470_CLK_R, CLK_PLL1, 49152, 1),
DEF_FIXED("osc", R8A77470_CLK_OSC, CLK_PLL1, 12288, 1),
DEF_DIV6P1("sd2", R8A77470_CLK_SD2, CLK_PLL1_DIV2, 0x078),
};
static const struct mssr_mod_clk r8a77470_mod_clks[] __initconst = {
DEF_MOD("msiof0", 0, R8A77470_CLK_MP),
DEF_MOD("vcp0", 101, R8A77470_CLK_ZS),
DEF_MOD("vpc0", 103, R8A77470_CLK_ZS),
DEF_MOD("tmu1", 111, R8A77470_CLK_P),
DEF_MOD("3dg", 112, R8A77470_CLK_ZS),
DEF_MOD("2d-dmac", 115, R8A77470_CLK_ZS),
DEF_MOD("fdp1-0", 119, R8A77470_CLK_ZS),
DEF_MOD("tmu3", 121, R8A77470_CLK_P),
DEF_MOD("tmu2", 122, R8A77470_CLK_P),
DEF_MOD("cmt0", 124, R8A77470_CLK_R),
DEF_MOD("vsp1du0", 128, R8A77470_CLK_ZS),
DEF_MOD("vsp1-sy", 131, R8A77470_CLK_ZS),
DEF_MOD("msiof2", 205, R8A77470_CLK_MP),
DEF_MOD("msiof1", 208, R8A77470_CLK_MP),
DEF_MOD("sys-dmac1", 218, R8A77470_CLK_ZS),
DEF_MOD("sys-dmac0", 219, R8A77470_CLK_ZS),
DEF_MOD("sdhi2", 312, R8A77470_CLK_SD2),
DEF_MOD("sdhi1", 313, R8A77470_CLK_SD1),
DEF_MOD("sdhi0", 314, R8A77470_CLK_SD0),
DEF_MOD("usbhs-dmac0-ch1", 326, R8A77470_CLK_HP),
DEF_MOD("usbhs-dmac1-ch1", 327, R8A77470_CLK_HP),
DEF_MOD("cmt1", 329, R8A77470_CLK_R),
DEF_MOD("usbhs-dmac0-ch0", 330, R8A77470_CLK_HP),
DEF_MOD("usbhs-dmac1-ch0", 331, R8A77470_CLK_HP),
DEF_MOD("rwdt", 402, R8A77470_CLK_R),
DEF_MOD("irqc", 407, R8A77470_CLK_CP),
DEF_MOD("intc-sys", 408, R8A77470_CLK_ZS),
DEF_MOD("audio-dmac0", 502, R8A77470_CLK_HP),
DEF_MOD("pwm", 523, R8A77470_CLK_P),
DEF_MOD("usb-ehci-0", 703, R8A77470_CLK_MP),
DEF_MOD("usbhs-0", 704, R8A77470_CLK_HP),
DEF_MOD("usb-ehci-1", 705, R8A77470_CLK_MP),
DEF_MOD("usbhs-1", 706, R8A77470_CLK_HP),
DEF_MOD("hscif2", 713, R8A77470_CLK_ZS),
DEF_MOD("scif5", 714, R8A77470_CLK_P),
DEF_MOD("scif4", 715, R8A77470_CLK_P),
DEF_MOD("hscif1", 716, R8A77470_CLK_ZS),
DEF_MOD("hscif0", 717, R8A77470_CLK_ZS),
DEF_MOD("scif3", 718, R8A77470_CLK_P),
DEF_MOD("scif2", 719, R8A77470_CLK_P),
DEF_MOD("scif1", 720, R8A77470_CLK_P),
DEF_MOD("scif0", 721, R8A77470_CLK_P),
DEF_MOD("du1", 723, R8A77470_CLK_ZX),
DEF_MOD("du0", 724, R8A77470_CLK_ZX),
DEF_MOD("ipmmu-sgx", 800, R8A77470_CLK_ZX),
DEF_MOD("etheravb", 812, R8A77470_CLK_HP),
DEF_MOD("ether", 813, R8A77470_CLK_P),
DEF_MOD("gpio5", 907, R8A77470_CLK_CP),
DEF_MOD("gpio4", 908, R8A77470_CLK_CP),
DEF_MOD("gpio3", 909, R8A77470_CLK_CP),
DEF_MOD("gpio2", 910, R8A77470_CLK_CP),
DEF_MOD("gpio1", 911, R8A77470_CLK_CP),
DEF_MOD("gpio0", 912, R8A77470_CLK_CP),
DEF_MOD("can1", 915, R8A77470_CLK_P),
DEF_MOD("can0", 916, R8A77470_CLK_P),
DEF_MOD("qspi_mod-1", 917, R8A77470_CLK_QSPI),
DEF_MOD("qspi_mod-0", 918, R8A77470_CLK_QSPI),
DEF_MOD("i2c4", 927, R8A77470_CLK_HP),
DEF_MOD("i2c3", 928, R8A77470_CLK_HP),
DEF_MOD("i2c2", 929, R8A77470_CLK_HP),
DEF_MOD("i2c1", 930, R8A77470_CLK_HP),
DEF_MOD("i2c0", 931, R8A77470_CLK_HP),
DEF_MOD("ssi-all", 1005, R8A77470_CLK_P),
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, R8A77470_CLK_P),
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-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)),
};
static const unsigned int r8a77470_crit_mod_clks[] __initconst = {
MOD_CLK_ID(402), /* RWDT */
MOD_CLK_ID(408), /* INTC-SYS (GIC) */
};
/*
* CPG Clock Data
*/
/*
* MD EXTAL PLL0 PLL1 PLL3
* 14 13 (MHz) *1 *2
*---------------------------------------------------
* 0 0 20 x80 x78 x50
* 0 1 26 x60 x60 x56
* 1 0 Prohibitted setting
* 1 1 30 x52 x52 x50
*
* *1 : Table 7.4 indicates VCO output (PLL0 = VCO)
* *2 : Table 7.4 indicates VCO output (PLL1 = VCO)
*/
#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 13) | \
(((md) & BIT(13)) >> 13))
static const struct rcar_gen2_cpg_pll_config cpg_pll_configs[4] __initconst = {
/* EXTAL div PLL1 mult x2 PLL3 mult */
{ 1, 156, 50, },
{ 1, 120, 56, },
{ /* Invalid*/ },
{ 1, 104, 50, },
};
static int __init r8a77470_cpg_mssr_init(struct device *dev)
{
const struct rcar_gen2_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_gen2_cpg_init(cpg_pll_config, 2, cpg_mode);
}
const struct cpg_mssr_info r8a77470_cpg_mssr_info __initconst = {
/* Core Clocks */
.core_clks = r8a77470_core_clks,
.num_core_clks = ARRAY_SIZE(r8a77470_core_clks),
.last_dt_core_clk = LAST_DT_CORE_CLK,
.num_total_core_clks = MOD_CLK_BASE,
/* Module Clocks */
.mod_clks = r8a77470_mod_clks,
.num_mod_clks = ARRAY_SIZE(r8a77470_mod_clks),
.num_hw_mod_clks = 12 * 32,
/* Critical Module Clocks */
.crit_mod_clks = r8a77470_crit_mod_clks,
.num_crit_mod_clks = ARRAY_SIZE(r8a77470_crit_mod_clks),
/* Callbacks */
.init = r8a77470_cpg_mssr_init,
.cpg_clk_register = rcar_gen2_cpg_clk_register,
};
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