Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 274 insertions, 0 deletions

diff --git a/drivers/clk/renesas/r8a77970-cpg-mssr.c b/drivers/clk/renesas/r8a77970-cpg-mssr.c
new file mode 100644
index 000000000..0f59c8422
--- /dev/null
+++ b/drivers/clk/renesas/r8a77970-cpg-mssr.c
@@ -0,0 +1,274 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * r8a77970 Clock Pulse Generator / Module Standby and Software Reset
+ *
+ * Copyright (C) 2017-2018 Cogent Embedded Inc.
+ *
+ * Based on r8a7795-cpg-mssr.c
+ *
+ * Copyright (C) 2015 Glider bvba
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/soc/renesas/rcar-rst.h>
+
+#include <dt-bindings/clock/r8a77970-cpg-mssr.h>
+
+#include "renesas-cpg-mssr.h"
+#include "rcar-gen3-cpg.h"
+
+#define CPG_SD0CKCR		0x0074
+
+enum r8a77970_clk_types {
+	CLK_TYPE_R8A77970_SD0H = CLK_TYPE_GEN3_SOC_BASE,
+	CLK_TYPE_R8A77970_SD0,
+};
+
+enum clk_ids {
+	/* Core Clock Outputs exported to DT */
+	LAST_DT_CORE_CLK = R8A77970_CLK_OSC,
+
+	/* External Input Clocks */
+	CLK_EXTAL,
+	CLK_EXTALR,
+
+	/* Internal Core Clocks */
+	CLK_MAIN,
+	CLK_PLL0,
+	CLK_PLL1,
+	CLK_PLL3,
+	CLK_PLL1_DIV2,
+	CLK_PLL1_DIV4,
+
+	/* Module Clocks */
+	MOD_CLK_BASE
+};
+
+static spinlock_t cpg_lock;
+
+static const struct clk_div_table cpg_sd0h_div_table[] = {
+	{  0,  2 }, {  1,  3 }, {  2,  4 }, {  3,  6 },
+	{  4,  8 }, {  5, 12 }, {  6, 16 }, {  7, 18 },
+	{  8, 24 }, { 10, 36 }, { 11, 48 }, {  0,  0 },
+};
+
+static const struct clk_div_table cpg_sd0_div_table[] = {
+	{  4,  8 }, {  5, 12 }, {  6, 16 }, {  7, 18 },
+	{  8, 24 }, { 10, 36 }, { 11, 48 }, { 12, 10 },
+	{  0,  0 },
+};
+
+static const struct cpg_core_clk r8a77970_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_FIXED(".pll1_div2",	CLK_PLL1_DIV2,	CLK_PLL1,	2, 1),
+	DEF_FIXED(".pll1_div4",	CLK_PLL1_DIV4,	CLK_PLL1_DIV2,	2, 1),
+
+	/* Core Clock Outputs */
+	DEF_FIXED("ztr",	R8A77970_CLK_ZTR,   CLK_PLL1_DIV2,  6, 1),
+	DEF_FIXED("ztrd2",	R8A77970_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
+	DEF_FIXED("zt",		R8A77970_CLK_ZT,    CLK_PLL1_DIV2,  4, 1),
+	DEF_FIXED("zx",		R8A77970_CLK_ZX,    CLK_PLL1_DIV2,  3, 1),
+	DEF_FIXED("s1d1",	R8A77970_CLK_S1D1,  CLK_PLL1_DIV2,  4, 1),
+	DEF_FIXED("s1d2",	R8A77970_CLK_S1D2,  CLK_PLL1_DIV2,  8, 1),
+	DEF_FIXED("s1d4",	R8A77970_CLK_S1D4,  CLK_PLL1_DIV2, 16, 1),
+	DEF_FIXED("s2d1",	R8A77970_CLK_S2D1,  CLK_PLL1_DIV2,  6, 1),
+	DEF_FIXED("s2d2",	R8A77970_CLK_S2D2,  CLK_PLL1_DIV2, 12, 1),
+	DEF_FIXED("s2d4",	R8A77970_CLK_S2D4,  CLK_PLL1_DIV2, 24, 1),
+
+	DEF_BASE("sd0h", R8A77970_CLK_SD0H, CLK_TYPE_R8A77970_SD0H,
+		 CLK_PLL1_DIV2),
+	DEF_BASE("sd0",	R8A77970_CLK_SD0, CLK_TYPE_R8A77970_SD0, CLK_PLL1_DIV2),
+
+	DEF_FIXED("rpc",	R8A77970_CLK_RPC,   CLK_PLL1_DIV2,  5, 1),
+	DEF_FIXED("rpcd2",	R8A77970_CLK_RPCD2, CLK_PLL1_DIV2, 10, 1),
+
+	DEF_FIXED("cl",		R8A77970_CLK_CL,    CLK_PLL1_DIV2, 48, 1),
+	DEF_FIXED("cp",		R8A77970_CLK_CP,    CLK_EXTAL,	    2, 1),
+	DEF_FIXED("cpex",	R8A77970_CLK_CPEX,  CLK_EXTAL,	    2, 1),
+
+	DEF_DIV6P1("canfd",	R8A77970_CLK_CANFD, CLK_PLL1_DIV4, 0x244),
+	DEF_DIV6P1("mso",	R8A77970_CLK_MSO,   CLK_PLL1_DIV4, 0x014),
+	DEF_DIV6P1("csi0",	R8A77970_CLK_CSI0,  CLK_PLL1_DIV4, 0x00c),
+
+	DEF_FIXED("osc",	R8A77970_CLK_OSC,   CLK_PLL1_DIV2, 12*1024, 1),
+	DEF_FIXED("r",		R8A77970_CLK_R,	    CLK_EXTALR,	   1, 1),
+};
+
+static const struct mssr_mod_clk r8a77970_mod_clks[] __initconst = {
+	DEF_MOD("tmu4",			 121,	R8A77970_CLK_S2D2),
+	DEF_MOD("tmu3",			 122,	R8A77970_CLK_S2D2),
+	DEF_MOD("tmu2",			 123,	R8A77970_CLK_S2D2),
+	DEF_MOD("tmu1",			 124,	R8A77970_CLK_S2D2),
+	DEF_MOD("tmu0",			 125,	R8A77970_CLK_CP),
+	DEF_MOD("ivcp1e",		 127,	R8A77970_CLK_S2D1),
+	DEF_MOD("scif4",		 203,	R8A77970_CLK_S2D4),
+	DEF_MOD("scif3",		 204,	R8A77970_CLK_S2D4),
+	DEF_MOD("scif1",		 206,	R8A77970_CLK_S2D4),
+	DEF_MOD("scif0",		 207,	R8A77970_CLK_S2D4),
+	DEF_MOD("msiof3",		 208,	R8A77970_CLK_MSO),
+	DEF_MOD("msiof2",		 209,	R8A77970_CLK_MSO),
+	DEF_MOD("msiof1",		 210,	R8A77970_CLK_MSO),
+	DEF_MOD("msiof0",		 211,	R8A77970_CLK_MSO),
+	DEF_MOD("mfis",			 213,	R8A77970_CLK_S2D2),
+	DEF_MOD("sys-dmac2",		 217,	R8A77970_CLK_S2D1),
+	DEF_MOD("sys-dmac1",		 218,	R8A77970_CLK_S2D1),
+	DEF_MOD("cmt3",			 300,	R8A77970_CLK_R),
+	DEF_MOD("cmt2",			 301,	R8A77970_CLK_R),
+	DEF_MOD("cmt1",			 302,	R8A77970_CLK_R),
+	DEF_MOD("cmt0",			 303,	R8A77970_CLK_R),
+	DEF_MOD("tpu0",			 304,	R8A77970_CLK_S2D4),
+	DEF_MOD("sd-if",		 314,	R8A77970_CLK_SD0),
+	DEF_MOD("rwdt",			 402,	R8A77970_CLK_R),
+	DEF_MOD("intc-ex",		 407,	R8A77970_CLK_CP),
+	DEF_MOD("intc-ap",		 408,	R8A77970_CLK_S2D1),
+	DEF_MOD("hscif3",		 517,	R8A77970_CLK_S2D1),
+	DEF_MOD("hscif2",		 518,	R8A77970_CLK_S2D1),
+	DEF_MOD("hscif1",		 519,	R8A77970_CLK_S2D1),
+	DEF_MOD("hscif0",		 520,	R8A77970_CLK_S2D1),
+	DEF_MOD("thermal",		 522,	R8A77970_CLK_CP),
+	DEF_MOD("pwm",			 523,	R8A77970_CLK_S2D4),
+	DEF_MOD("fcpvd0",		 603,	R8A77970_CLK_S2D1),
+	DEF_MOD("vspd0",		 623,	R8A77970_CLK_S2D1),
+	DEF_MOD("csi40",		 716,	R8A77970_CLK_CSI0),
+	DEF_MOD("du0",			 724,	R8A77970_CLK_S2D1),
+	DEF_MOD("lvds",			 727,	R8A77970_CLK_S2D1),
+	DEF_MOD("vin3",			 808,	R8A77970_CLK_S2D1),
+	DEF_MOD("vin2",			 809,	R8A77970_CLK_S2D1),
+	DEF_MOD("vin1",			 810,	R8A77970_CLK_S2D1),
+	DEF_MOD("vin0",			 811,	R8A77970_CLK_S2D1),
+	DEF_MOD("etheravb",		 812,	R8A77970_CLK_S2D2),
+	DEF_MOD("gpio5",		 907,	R8A77970_CLK_CP),
+	DEF_MOD("gpio4",		 908,	R8A77970_CLK_CP),
+	DEF_MOD("gpio3",		 909,	R8A77970_CLK_CP),
+	DEF_MOD("gpio2",		 910,	R8A77970_CLK_CP),
+	DEF_MOD("gpio1",		 911,	R8A77970_CLK_CP),
+	DEF_MOD("gpio0",		 912,	R8A77970_CLK_CP),
+	DEF_MOD("can-fd",		 914,	R8A77970_CLK_S2D2),
+	DEF_MOD("rpc-if",		 917,	R8A77970_CLK_RPC),
+	DEF_MOD("i2c4",			 927,	R8A77970_CLK_S2D2),
+	DEF_MOD("i2c3",			 928,	R8A77970_CLK_S2D2),
+	DEF_MOD("i2c2",			 929,	R8A77970_CLK_S2D2),
+	DEF_MOD("i2c1",			 930,	R8A77970_CLK_S2D2),
+	DEF_MOD("i2c0",			 931,	R8A77970_CLK_S2D2),
+};
+
+static const unsigned int r8a77970_crit_mod_clks[] __initconst = {
+	MOD_CLK_ID(402),	/* RWDT */
+	MOD_CLK_ID(408),	/* INTC-AP (GIC) */
+};
+
+/*
+ * CPG Clock Data
+ */
+
+/*
+ *   MD		EXTAL		PLL0	PLL1	PLL3
+ * 14 13 19	(MHz)
+ *-------------------------------------------------
+ * 0  0  0	16.66 x 1	x192	x192	x96
+ * 0  0  1	16.66 x 1	x192	x192	x80
+ * 0  1  0	20    x 1	x160	x160	x80
+ * 0  1  1	20    x 1	x160	x160	x66
+ * 1  0  0	27    / 2	x236	x236	x118
+ * 1  0  1	27    / 2	x236	x236	x98
+ * 1  1  0	33.33 / 2	x192	x192	x96
+ * 1  1  1	33.33 / 2	x192	x192	x80
+ */
+#define CPG_PLL_CONFIG_INDEX(md)	((((md) & BIT(14)) >> 12) | \
+					 (((md) & BIT(13)) >> 12) | \
+					 (((md) & BIT(19)) >> 19))
+
+static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[8] __initconst = {
+	/* EXTAL div	PLL1 mult/div	PLL3 mult/div */
+	{ 1,		192,	1,	96,	1,	},
+	{ 1,		192,	1,	80,	1,	},
+	{ 1,		160,	1,	80,	1,	},
+	{ 1,		160,	1,	66,	1,	},
+	{ 2,		236,	1,	118,	1,	},
+	{ 2,		236,	1,	98,	1,	},
+	{ 2,		192,	1,	96,	1,	},
+	{ 2,		192,	1,	80,	1,	},
+};
+
+static int __init r8a77970_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;
+
+	spin_lock_init(&cpg_lock);
+
+	cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
+
+	return rcar_gen3_cpg_init(cpg_pll_config, CLK_EXTALR, cpg_mode);
+}
+
+static struct clk * __init r8a77970_cpg_clk_register(struct device *dev,
+	const struct cpg_core_clk *core, const struct cpg_mssr_info *info,
+	struct clk **clks, void __iomem *base,
+	struct raw_notifier_head *notifiers)
+{
+	const struct clk_div_table *table;
+	const struct clk *parent;
+	unsigned int shift;
+
+	switch (core->type) {
+	case CLK_TYPE_R8A77970_SD0H:
+		table = cpg_sd0h_div_table;
+		shift = 8;
+		break;
+	case CLK_TYPE_R8A77970_SD0:
+		table = cpg_sd0_div_table;
+		shift = 4;
+		break;
+	default:
+		return rcar_gen3_cpg_clk_register(dev, core, info, clks, base,
+						  notifiers);
+	}
+
+	parent = clks[core->parent];
+	if (IS_ERR(parent))
+		return ERR_CAST(parent);
+
+	return clk_register_divider_table(NULL, core->name,
+					  __clk_get_name(parent), 0,
+					  base + CPG_SD0CKCR,
+					  shift, 4, 0, table, &cpg_lock);
+}
+
+const struct cpg_mssr_info r8a77970_cpg_mssr_info __initconst = {
+	/* Core Clocks */
+	.core_clks = r8a77970_core_clks,
+	.num_core_clks = ARRAY_SIZE(r8a77970_core_clks),
+	.last_dt_core_clk = LAST_DT_CORE_CLK,
+	.num_total_core_clks = MOD_CLK_BASE,
+
+	/* Module Clocks */
+	.mod_clks = r8a77970_mod_clks,
+	.num_mod_clks = ARRAY_SIZE(r8a77970_mod_clks),
+	.num_hw_mod_clks = 12 * 32,
+
+	/* Critical Module Clocks */
+	.crit_mod_clks = r8a77970_crit_mod_clks,
+	.num_crit_mod_clks = ARRAY_SIZE(r8a77970_crit_mod_clks),
+
+	/* Callbacks */
+	.init = r8a77970_cpg_mssr_init,
+	.cpg_clk_register = r8a77970_cpg_clk_register,
+};