r8a7791-cpg-mssr.c
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/*
* Renesas R8A7791 CPG MSSR driver
*
* Copyright (C) 2018 Marek Vasut <marek.vasut@gmail.com>
*
* Based on the following driver from Linux kernel:
* r8a7791 Clock Pulse Generator / Module Standby and Software Reset
* Copyright (C) 2015-2017 Glider bvba
* Based on clk-rcar-gen2.c
* Copyright (C) 2013 Ideas On Board SPRL
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <clk-uclass.h>
#include <dm.h>
#include <dt-bindings/clock/r8a7791-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 = R8A7791_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 r8a7791_core_clks[] = {
/* 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("z", R8A7791_CLK_Z, CLK_TYPE_GEN2_Z, CLK_PLL0),
DEF_BASE("lb", R8A7791_CLK_LB, CLK_TYPE_GEN2_LB, CLK_PLL1),
DEF_BASE("adsp", R8A7791_CLK_ADSP, CLK_TYPE_GEN2_ADSP, CLK_PLL1),
DEF_BASE("sdh", R8A7791_CLK_SDH, CLK_TYPE_GEN2_SDH, CLK_PLL1),
DEF_BASE("sd0", R8A7791_CLK_SD0, CLK_TYPE_GEN2_SD0, CLK_PLL1),
DEF_BASE("qspi", R8A7791_CLK_QSPI, CLK_TYPE_GEN2_QSPI, CLK_PLL1_DIV2),
DEF_BASE("rcan", R8A7791_CLK_RCAN, CLK_TYPE_GEN2_RCAN, CLK_USB_EXTAL),
DEF_FIXED("zg", R8A7791_CLK_ZG, CLK_PLL1, 3, 1),
DEF_FIXED("zx", R8A7791_CLK_ZX, CLK_PLL1, 3, 1),
DEF_FIXED("zs", R8A7791_CLK_ZS, CLK_PLL1, 6, 1),
DEF_FIXED("hp", R8A7791_CLK_HP, CLK_PLL1, 12, 1),
DEF_FIXED("i", R8A7791_CLK_I, CLK_PLL1, 2, 1),
DEF_FIXED("b", R8A7791_CLK_B, CLK_PLL1, 12, 1),
DEF_FIXED("p", R8A7791_CLK_P, CLK_PLL1, 24, 1),
DEF_FIXED("cl", R8A7791_CLK_CL, CLK_PLL1, 48, 1),
DEF_FIXED("m2", R8A7791_CLK_M2, CLK_PLL1, 8, 1),
DEF_FIXED("zb3", R8A7791_CLK_ZB3, CLK_PLL3, 4, 1),
DEF_FIXED("zb3d2", R8A7791_CLK_ZB3D2, CLK_PLL3, 8, 1),
DEF_FIXED("ddr", R8A7791_CLK_DDR, CLK_PLL3, 8, 1),
DEF_FIXED("mp", R8A7791_CLK_MP, CLK_PLL1_DIV2, 15, 1),
DEF_FIXED("cp", R8A7791_CLK_CP, CLK_EXTAL, 2, 1),
DEF_FIXED("r", R8A7791_CLK_R, CLK_PLL1, 49152, 1),
DEF_FIXED("osc", R8A7791_CLK_OSC, CLK_PLL1, 12288, 1),
DEF_DIV6P1("sd2", R8A7791_CLK_SD2, CLK_PLL1_DIV2, 0x078),
DEF_DIV6P1("sd3", R8A7791_CLK_SD3, CLK_PLL1_DIV2, 0x26c),
DEF_DIV6P1("mmc0", R8A7791_CLK_MMC0, CLK_PLL1_DIV2, 0x240),
DEF_DIV6P1("ssp", R8A7791_CLK_SSP, CLK_PLL1_DIV2, 0x248),
DEF_DIV6P1("ssprs", R8A7791_CLK_SSPRS, CLK_PLL1_DIV2, 0x24c),
};
static const struct mssr_mod_clk r8a7791_mod_clks[] = {
DEF_MOD("msiof0", 0, R8A7791_CLK_MP),
DEF_MOD("vcp0", 101, R8A7791_CLK_ZS),
DEF_MOD("vpc0", 103, R8A7791_CLK_ZS),
DEF_MOD("jpu", 106, R8A7791_CLK_M2),
DEF_MOD("ssp1", 109, R8A7791_CLK_ZS),
DEF_MOD("tmu1", 111, R8A7791_CLK_P),
DEF_MOD("3dg", 112, R8A7791_CLK_ZG),
DEF_MOD("2d-dmac", 115, R8A7791_CLK_ZS),
DEF_MOD("fdp1-1", 118, R8A7791_CLK_ZS),
DEF_MOD("fdp1-0", 119, R8A7791_CLK_ZS),
DEF_MOD("tmu3", 121, R8A7791_CLK_P),
DEF_MOD("tmu2", 122, R8A7791_CLK_P),
DEF_MOD("cmt0", 124, R8A7791_CLK_R),
DEF_MOD("tmu0", 125, R8A7791_CLK_CP),
DEF_MOD("vsp1du1", 127, R8A7791_CLK_ZS),
DEF_MOD("vsp1du0", 128, R8A7791_CLK_ZS),
DEF_MOD("vsp1-sy", 131, R8A7791_CLK_ZS),
DEF_MOD("scifa2", 202, R8A7791_CLK_MP),
DEF_MOD("scifa1", 203, R8A7791_CLK_MP),
DEF_MOD("scifa0", 204, R8A7791_CLK_MP),
DEF_MOD("msiof2", 205, R8A7791_CLK_MP),
DEF_MOD("scifb0", 206, R8A7791_CLK_MP),
DEF_MOD("scifb1", 207, R8A7791_CLK_MP),
DEF_MOD("msiof1", 208, R8A7791_CLK_MP),
DEF_MOD("scifb2", 216, R8A7791_CLK_MP),
DEF_MOD("sys-dmac1", 218, R8A7791_CLK_ZS),
DEF_MOD("sys-dmac0", 219, R8A7791_CLK_ZS),
DEF_MOD("tpu0", 304, R8A7791_CLK_CP),
DEF_MOD("sdhi3", 311, R8A7791_CLK_SD3),
DEF_MOD("sdhi2", 312, R8A7791_CLK_SD2),
DEF_MOD("sdhi0", 314, R8A7791_CLK_SD0),
DEF_MOD("mmcif0", 315, R8A7791_CLK_MMC0),
DEF_MOD("iic0", 318, R8A7791_CLK_HP),
DEF_MOD("pciec", 319, R8A7791_CLK_MP),
DEF_MOD("iic1", 323, R8A7791_CLK_HP),
DEF_MOD("usb3.0", 328, R8A7791_CLK_MP),
DEF_MOD("cmt1", 329, R8A7791_CLK_R),
DEF_MOD("usbhs-dmac0", 330, R8A7791_CLK_HP),
DEF_MOD("usbhs-dmac1", 331, R8A7791_CLK_HP),
DEF_MOD("irqc", 407, R8A7791_CLK_CP),
DEF_MOD("intc-sys", 408, R8A7791_CLK_ZS),
DEF_MOD("audio-dmac1", 501, R8A7791_CLK_HP),
DEF_MOD("audio-dmac0", 502, R8A7791_CLK_HP),
DEF_MOD("adsp_mod", 506, R8A7791_CLK_ADSP),
DEF_MOD("thermal", 522, CLK_EXTAL),
DEF_MOD("pwm", 523, R8A7791_CLK_P),
DEF_MOD("usb-ehci", 703, R8A7791_CLK_MP),
DEF_MOD("usbhs", 704, R8A7791_CLK_HP),
DEF_MOD("hscif2", 713, R8A7791_CLK_ZS),
DEF_MOD("scif5", 714, R8A7791_CLK_P),
DEF_MOD("scif4", 715, R8A7791_CLK_P),
DEF_MOD("hscif1", 716, R8A7791_CLK_ZS),
DEF_MOD("hscif0", 717, R8A7791_CLK_ZS),
DEF_MOD("scif3", 718, R8A7791_CLK_P),
DEF_MOD("scif2", 719, R8A7791_CLK_P),
DEF_MOD("scif1", 720, R8A7791_CLK_P),
DEF_MOD("scif0", 721, R8A7791_CLK_P),
DEF_MOD("du1", 723, R8A7791_CLK_ZX),
DEF_MOD("du0", 724, R8A7791_CLK_ZX),
DEF_MOD("lvds0", 726, R8A7791_CLK_ZX),
DEF_MOD("ipmmu-sgx", 800, R8A7791_CLK_ZX),
DEF_MOD("mlb", 802, R8A7791_CLK_HP),
DEF_MOD("vin2", 809, R8A7791_CLK_ZG),
DEF_MOD("vin1", 810, R8A7791_CLK_ZG),
DEF_MOD("vin0", 811, R8A7791_CLK_ZG),
DEF_MOD("etheravb", 812, R8A7791_CLK_HP),
DEF_MOD("ether", 813, R8A7791_CLK_P),
DEF_MOD("sata1", 814, R8A7791_CLK_ZS),
DEF_MOD("sata0", 815, R8A7791_CLK_ZS),
DEF_MOD("gyro-adc", 901, R8A7791_CLK_P),
DEF_MOD("gpio7", 904, R8A7791_CLK_CP),
DEF_MOD("gpio6", 905, R8A7791_CLK_CP),
DEF_MOD("gpio5", 907, R8A7791_CLK_CP),
DEF_MOD("gpio4", 908, R8A7791_CLK_CP),
DEF_MOD("gpio3", 909, R8A7791_CLK_CP),
DEF_MOD("gpio2", 910, R8A7791_CLK_CP),
DEF_MOD("gpio1", 911, R8A7791_CLK_CP),
DEF_MOD("gpio0", 912, R8A7791_CLK_CP),
DEF_MOD("can1", 915, R8A7791_CLK_P),
DEF_MOD("can0", 916, R8A7791_CLK_P),
DEF_MOD("qspi_mod", 917, R8A7791_CLK_QSPI),
DEF_MOD("i2c5", 925, R8A7791_CLK_HP),
DEF_MOD("iicdvfs", 926, R8A7791_CLK_CP),
DEF_MOD("i2c4", 927, R8A7791_CLK_HP),
DEF_MOD("i2c3", 928, R8A7791_CLK_HP),
DEF_MOD("i2c2", 929, R8A7791_CLK_HP),
DEF_MOD("i2c1", 930, R8A7791_CLK_HP),
DEF_MOD("i2c0", 931, R8A7791_CLK_HP),
DEF_MOD("ssi-all", 1005, R8A7791_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, R8A7791_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-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)),
DEF_MOD("scifa3", 1106, R8A7791_CLK_MP),
DEF_MOD("scifa4", 1107, R8A7791_CLK_MP),
DEF_MOD("scifa5", 1108, R8A7791_CLK_MP),
};
/*
* CPG Clock Data
*/
/*
* MD EXTAL PLL0 PLL1 PLL3
* 14 13 19 (MHz) *1 *1
*---------------------------------------------------
* 0 0 0 15 x172/2 x208/2 x106
* 0 0 1 15 x172/2 x208/2 x88
* 0 1 0 20 x130/2 x156/2 x80
* 0 1 1 20 x130/2 x156/2 x66
* 1 0 0 26 / 2 x200/2 x240/2 x122
* 1 0 1 26 / 2 x200/2 x240/2 x102
* 1 1 0 30 / 2 x172/2 x208/2 x106
* 1 1 1 30 / 2 x172/2 x208/2 x88
*
* *1 : Table 7.5a indicates VCO output (PLLx = VCO/2)
*/
#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 12) | \
(((md) & BIT(13)) >> 12) | \
(((md) & BIT(19)) >> 19))
static const struct rcar_gen2_cpg_pll_config cpg_pll_configs[8] = {
{ 1, 208, 106 }, { 1, 208, 88 }, { 1, 156, 80 }, { 1, 156, 66 },
{ 2, 240, 122 }, { 2, 240, 102 }, { 2, 208, 106 }, { 2, 208, 88 },
};
static const struct mstp_stop_table r8a7791_mstp_table[] = {
{ 0x00640801, 0x400000, 0x00640801, 0x0 },
{ 0x9B6C9B5A, 0x0, 0x9B6C9B5A, 0x0 },
{ 0x100D21FC, 0x2000, 0x100D21FC, 0x0 },
{ 0xF08CD810, 0x0, 0xF08CD810, 0x0 },
{ 0x800001C4, 0x180, 0x800001C4, 0x0 },
{ 0x44C00046, 0x0, 0x44C00046, 0x0 },
{ 0x0, 0x0, 0x0, 0x0 }, /* SMSTP6 is not present on Gen2 */
{ 0x05BFE618, 0x200000, 0x05BFE618, 0x0 },
{ 0x40C0FE85, 0x0, 0x40C0FE85, 0x0 },
{ 0xFF979FFF, 0x0, 0xFF979FFF, 0x0 },
{ 0xFFFEFFE0, 0x0, 0xFFFEFFE0, 0x0 },
{ 0x000001C0, 0x0, 0x000001C0, 0x0 },
};
static const void *r8a7791_get_pll_config(const u32 cpg_mode)
{
return &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
}
static const struct cpg_mssr_info r8a7791_cpg_mssr_info = {
.core_clk = r8a7791_core_clks,
.core_clk_size = ARRAY_SIZE(r8a7791_core_clks),
.mod_clk = r8a7791_mod_clks,
.mod_clk_size = ARRAY_SIZE(r8a7791_mod_clks),
.mstp_table = r8a7791_mstp_table,
.mstp_table_size = ARRAY_SIZE(r8a7791_mstp_table),
.reset_node = "renesas,r8a7791-rst",
.extal_usb_node = "usb_extal",
.mod_clk_base = MOD_CLK_BASE,
.clk_extal_id = CLK_EXTAL,
.clk_extal_usb_id = CLK_USB_EXTAL,
.pll0_div = 2,
.get_pll_config = r8a7791_get_pll_config,
};
static const struct udevice_id r8a7791_clk_ids[] = {
{
.compatible = "renesas,r8a7791-cpg-mssr",
.data = (ulong)&r8a7791_cpg_mssr_info
},
{
.compatible = "renesas,r8a7793-cpg-mssr",
.data = (ulong)&r8a7791_cpg_mssr_info
},
{ }
};
U_BOOT_DRIVER(clk_r8a7791) = {
.name = "clk_r8a7791",
.id = UCLASS_CLK,
.of_match = r8a7791_clk_ids,
.priv_auto_alloc_size = sizeof(struct gen2_clk_priv),
.ops = &gen2_clk_ops,
.probe = gen2_clk_probe,
.remove = gen2_clk_remove,
};