u-boot/drivers/clk/renesas/r8a77995-cpg-mssr.c
Marek Vasut ff50b323b3 clk: renesas: Split SMSTPCR and RMSTPCR tables
The Gen2 requires setting RMSTPCR before booting, while on Gen3 this
is thus far always zero. Split the tables so the RMSTPCR can be set
too.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-01-24 23:27:22 +01:00

241 lines
8.5 KiB
C

/*
* Renesas R8A77995 CPG MSSR driver
*
* Copyright (C) 2017-2018 Marek Vasut <marek.vasut@gmail.com>
*
* Based on the following driver from Linux kernel:
* r8a7796 Clock Pulse Generator / Module Standby and Software Reset
*
* Copyright (C) 2016 Glider bvba
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <clk-uclass.h>
#include <dm.h>
#include <dt-bindings/clock/r8a77995-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 = R8A77995_CLK_CP,
/* External Input Clocks */
CLK_EXTAL,
/* Internal Core Clocks */
CLK_MAIN,
CLK_PLL0,
CLK_PLL1,
CLK_PLL3,
CLK_PLL0D2,
CLK_PLL0D3,
CLK_PLL0D5,
CLK_PLL1D2,
CLK_PE,
CLK_S0,
CLK_S1,
CLK_S2,
CLK_S3,
CLK_SDSRC,
CLK_SSPSRC,
/* Module Clocks */
MOD_CLK_BASE
};
static const struct cpg_core_clk r8a77995_core_clks[] = {
/* 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, 4, 250),
DEF_FIXED(".pll0d2", CLK_PLL0D2, CLK_PLL0, 2, 1),
DEF_FIXED(".pll0d3", CLK_PLL0D3, CLK_PLL0, 3, 1),
DEF_FIXED(".pll0d5", CLK_PLL0D5, CLK_PLL0, 5, 1),
DEF_FIXED(".pll1d2", CLK_PLL1D2, CLK_PLL1, 2, 1),
DEF_FIXED(".pe", CLK_PE, CLK_PLL0D3, 4, 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),
/* Core Clock Outputs */
DEF_FIXED("z2", R8A77995_CLK_Z2, CLK_PLL0D3, 1, 1),
DEF_FIXED("ztr", R8A77995_CLK_ZTR, CLK_PLL1, 6, 1),
DEF_FIXED("zt", R8A77995_CLK_ZT, CLK_PLL1, 4, 1),
DEF_FIXED("zx", R8A77995_CLK_ZX, CLK_PLL1, 3, 1),
DEF_FIXED("s0d1", R8A77995_CLK_S0D1, CLK_S0, 1, 1),
DEF_FIXED("s1d1", R8A77995_CLK_S1D1, CLK_S1, 1, 1),
DEF_FIXED("s1d2", R8A77995_CLK_S1D2, CLK_S1, 2, 1),
DEF_FIXED("s1d4", R8A77995_CLK_S1D4, CLK_S1, 4, 1),
DEF_FIXED("s2d1", R8A77995_CLK_S2D1, CLK_S2, 1, 1),
DEF_FIXED("s2d2", R8A77995_CLK_S2D2, CLK_S2, 2, 1),
DEF_FIXED("s2d4", R8A77995_CLK_S2D4, CLK_S2, 4, 1),
DEF_FIXED("s3d1", R8A77995_CLK_S3D1, CLK_S3, 1, 1),
DEF_FIXED("s3d2", R8A77995_CLK_S3D2, CLK_S3, 2, 1),
DEF_FIXED("s3d4", R8A77995_CLK_S3D4, CLK_S3, 4, 1),
DEF_FIXED("cl", R8A77995_CLK_CL, CLK_PLL1, 48, 1),
DEF_FIXED("cp", R8A77995_CLK_CP, CLK_EXTAL, 2, 1),
DEF_FIXED("osc", R8A77995_CLK_OSC, CLK_EXTAL, 384, 1),
DEF_FIXED("r", R8A77995_CLK_R, CLK_EXTAL, 1536, 1),
DEF_GEN3_PE("s1d4c", R8A77995_CLK_S1D4C, CLK_S1, 4, CLK_PE, 2),
DEF_GEN3_PE("s3d1c", R8A77995_CLK_S3D1C, CLK_S3, 1, CLK_PE, 1),
DEF_GEN3_PE("s3d2c", R8A77995_CLK_S3D2C, CLK_S3, 2, CLK_PE, 2),
DEF_GEN3_PE("s3d4c", R8A77995_CLK_S3D4C, CLK_S3, 4, CLK_PE, 4),
DEF_GEN3_SD("sd0", R8A77995_CLK_SD0, CLK_SDSRC, 0x268),
};
static const struct mssr_mod_clk r8a77995_mod_clks[] = {
DEF_MOD("scif5", 202, R8A77995_CLK_S3D4C),
DEF_MOD("scif4", 203, R8A77995_CLK_S3D4C),
DEF_MOD("scif3", 204, R8A77995_CLK_S3D4C),
DEF_MOD("scif1", 206, R8A77995_CLK_S3D4C),
DEF_MOD("scif0", 207, R8A77995_CLK_S3D4C),
DEF_MOD("msiof3", 208, R8A77995_CLK_MSO),
DEF_MOD("msiof2", 209, R8A77995_CLK_MSO),
DEF_MOD("msiof1", 210, R8A77995_CLK_MSO),
DEF_MOD("msiof0", 211, R8A77995_CLK_MSO),
DEF_MOD("sys-dmac2", 217, R8A77995_CLK_S3D1),
DEF_MOD("sys-dmac1", 218, R8A77995_CLK_S3D1),
DEF_MOD("sys-dmac0", 219, R8A77995_CLK_S3D1),
DEF_MOD("cmt3", 300, R8A77995_CLK_R),
DEF_MOD("cmt2", 301, R8A77995_CLK_R),
DEF_MOD("cmt1", 302, R8A77995_CLK_R),
DEF_MOD("cmt0", 303, R8A77995_CLK_R),
DEF_MOD("scif2", 310, R8A77995_CLK_S3D4C),
DEF_MOD("emmc0", 312, R8A77995_CLK_SD0),
DEF_MOD("usb-dmac0", 330, R8A77995_CLK_S3D1),
DEF_MOD("usb-dmac1", 331, R8A77995_CLK_S3D1),
DEF_MOD("rwdt", 402, R8A77995_CLK_R),
DEF_MOD("intc-ex", 407, R8A77995_CLK_CP),
DEF_MOD("intc-ap", 408, R8A77995_CLK_S3D1),
DEF_MOD("audmac0", 502, R8A77995_CLK_S3D1),
DEF_MOD("hscif3", 517, R8A77995_CLK_S3D1C),
DEF_MOD("hscif0", 520, R8A77995_CLK_S3D1C),
DEF_MOD("thermal", 522, R8A77995_CLK_CP),
DEF_MOD("pwm", 523, R8A77995_CLK_S3D4C),
DEF_MOD("fcpvd1", 602, R8A77995_CLK_S1D2),
DEF_MOD("fcpvd0", 603, R8A77995_CLK_S1D2),
DEF_MOD("fcpvbs", 607, R8A77995_CLK_S0D1),
DEF_MOD("vspd1", 622, R8A77995_CLK_S1D2),
DEF_MOD("vspd0", 623, R8A77995_CLK_S1D2),
DEF_MOD("vspbs", 627, R8A77995_CLK_S0D1),
DEF_MOD("ehci0", 703, R8A77995_CLK_S3D2),
DEF_MOD("hsusb", 704, R8A77995_CLK_S3D2),
DEF_MOD("du1", 723, R8A77995_CLK_S2D1),
DEF_MOD("du0", 724, R8A77995_CLK_S2D1),
DEF_MOD("lvds", 727, R8A77995_CLK_S2D1),
DEF_MOD("vin7", 804, R8A77995_CLK_S1D2),
DEF_MOD("vin6", 805, R8A77995_CLK_S1D2),
DEF_MOD("vin5", 806, R8A77995_CLK_S1D2),
DEF_MOD("vin4", 807, R8A77995_CLK_S1D2),
DEF_MOD("etheravb", 812, R8A77995_CLK_S3D2),
DEF_MOD("imr0", 823, R8A77995_CLK_S1D2),
DEF_MOD("gpio6", 906, R8A77995_CLK_S3D4),
DEF_MOD("gpio5", 907, R8A77995_CLK_S3D4),
DEF_MOD("gpio4", 908, R8A77995_CLK_S3D4),
DEF_MOD("gpio3", 909, R8A77995_CLK_S3D4),
DEF_MOD("gpio2", 910, R8A77995_CLK_S3D4),
DEF_MOD("gpio1", 911, R8A77995_CLK_S3D4),
DEF_MOD("gpio0", 912, R8A77995_CLK_S3D4),
DEF_MOD("can-fd", 914, R8A77995_CLK_S3D2),
DEF_MOD("can-if1", 915, R8A77995_CLK_S3D4),
DEF_MOD("can-if0", 916, R8A77995_CLK_S3D4),
DEF_MOD("i2c3", 928, R8A77995_CLK_S3D2),
DEF_MOD("i2c2", 929, R8A77995_CLK_S3D2),
DEF_MOD("i2c1", 930, R8A77995_CLK_S3D2),
DEF_MOD("i2c0", 931, R8A77995_CLK_S3D2),
DEF_MOD("ssi-all", 1005, R8A77995_CLK_S3D4),
DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)),
DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)),
DEF_MOD("scu-all", 1017, R8A77995_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-src6", 1025, MOD_CLK_ID(1017)),
DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)),
};
/*
* CPG Clock Data
*/
/*
* MD19 EXTAL (MHz) PLL0 PLL1 PLL3
*--------------------------------------------------------------------
* 0 48 x 1 x250/4 x100/3 x100/3
* 1 48 x 1 x250/4 x100/3 x116/6
*/
#define CPG_PLL_CONFIG_INDEX(md) (((md) & BIT(19)) >> 19)
static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[2] = {
/* EXTAL div PLL1 mult/div PLL3 mult/div */
{ 1, 100, 3, 100, 3, },
{ 1, 100, 3, 116, 6, },
};
static const struct mstp_stop_table r8a77995_mstp_table[] = {
{ 0x00200000, 0x0, 0x00200000, 0 },
{ 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
{ 0x340E2FDC, 0x2040, 0x340E2FDC, 0 },
{ 0xFFFFFFDF, 0x400, 0xFFFFFFDF, 0 },
{ 0x80000184, 0x180, 0x80000184, 0 },
{ 0xC3FFFFFF, 0x0, 0xC3FFFFFF, 0 },
{ 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
{ 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
{ 0x01F1FFF7, 0x0, 0x01F1FFF7, 0 },
{ 0xFFFFFFFE, 0x0, 0xFFFFFFFE, 0 },
{ 0xFFFEFFE0, 0x0, 0xFFFEFFE0, 0 },
{ 0x000000B7, 0x0, 0x000000B7, 0 },
};
static const void *r8a77995_get_pll_config(const u32 cpg_mode)
{
return &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
}
static const struct cpg_mssr_info r8a77995_cpg_mssr_info = {
.core_clk = r8a77995_core_clks,
.core_clk_size = ARRAY_SIZE(r8a77995_core_clks),
.mod_clk = r8a77995_mod_clks,
.mod_clk_size = ARRAY_SIZE(r8a77995_mod_clks),
.mstp_table = r8a77995_mstp_table,
.mstp_table_size = ARRAY_SIZE(r8a77995_mstp_table),
.reset_node = "renesas,r8a77995-rst",
.mod_clk_base = MOD_CLK_BASE,
.clk_extal_id = CLK_EXTAL,
.clk_extalr_id = ~0,
.get_pll_config = r8a77995_get_pll_config,
};
static const struct udevice_id r8a77995_clk_ids[] = {
{
.compatible = "renesas,r8a77995-cpg-mssr",
.data = (ulong)&r8a77995_cpg_mssr_info
},
{ }
};
U_BOOT_DRIVER(clk_r8a77995) = {
.name = "clk_r8a77995",
.id = UCLASS_CLK,
.of_match = r8a77995_clk_ids,
.priv_auto_alloc_size = sizeof(struct gen3_clk_priv),
.ops = &gen3_clk_ops,
.probe = gen3_clk_probe,
.remove = gen3_clk_remove,
};