[PATCH 9/9] clk: renesas: cpg-mssr: Add r8a774c0 support


Biju Das <biju.das@...>
 

From: Fabrizio Castro <fabrizio.castro@...>

Add RZ/G2E (R8A774C0) Clock Pulse Generator / Module Standby and
Software Reset support.

Based on Table 8.2g of "RZ/G Series, 2nd Generation User's Manual:
Hardware (Rev. 0.61, June 12, 2018)".

Signed-off-by: Fabrizio Castro <fabrizio.castro@...>
Reviewed-by: Biju Das <biju.das@...>
Signed-off-by: Geert Uytterhoeven <geert+renesas@...>
(cherry picked from commit 906e0a4a6d1ef2d3940cd7f17287b111730382da)
Signed-off-by: Biju Das <biju.das@...>
---
drivers/clk/renesas/Kconfig | 5 +
drivers/clk/renesas/Makefile | 1 +
drivers/clk/renesas/r8a774c0-cpg-mssr.c | 286 ++++++++++++++++++++++++++++++++
drivers/clk/renesas/renesas-cpg-mssr.c | 6 +
drivers/clk/renesas/renesas-cpg-mssr.h | 1 +
5 files changed, 299 insertions(+)
create mode 100644 drivers/clk/renesas/r8a774c0-cpg-mssr.c

diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig
index f998a73..ac877ef 100644
--- a/drivers/clk/renesas/Kconfig
+++ b/drivers/clk/renesas/Kconfig
@@ -9,6 +9,7 @@ config CLK_RENESAS
select CLK_R8A7745 if ARCH_R8A7745
select CLK_R8A77470 if ARCH_R8A77470
select CLK_R8A774A1 if ARCH_R8A774A1
+ select CLK_R8A774C0 if ARCH_R8A774C0
select CLK_R8A7778 if ARCH_R8A7778
select CLK_R8A7779 if ARCH_R8A7779
select CLK_R8A7790 if ARCH_R8A7790
@@ -72,6 +73,10 @@ config CLK_R8A774A1
bool "RZ/G2M clock support" if COMPILE_TEST
select CLK_RCAR_GEN3_CPG

+config CLK_R8A774C0
+ bool "RZ/G2E clock support" if COMPILE_TEST
+ select CLK_RCAR_GEN3_CPG
+
config CLK_R8A7778
bool "R-Car M1A clock support" if COMPILE_TEST
select CLK_RENESAS_CPG_MSTP
diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile
index 71d4caf..c024d72 100644
--- a/drivers/clk/renesas/Makefile
+++ b/drivers/clk/renesas/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_CLK_R8A7743) += r8a7743-cpg-mssr.o
obj-$(CONFIG_CLK_R8A7745) += r8a7745-cpg-mssr.o
obj-$(CONFIG_CLK_R8A77470) += r8a77470-cpg-mssr.o
obj-$(CONFIG_CLK_R8A774A1) += r8a774a1-cpg-mssr.o
+obj-$(CONFIG_CLK_R8A774C0) += r8a774c0-cpg-mssr.o
obj-$(CONFIG_CLK_R8A7778) += clk-r8a7778.o
obj-$(CONFIG_CLK_R8A7779) += clk-r8a7779.o
obj-$(CONFIG_CLK_R8A7790) += r8a7790-cpg-mssr.o
diff --git a/drivers/clk/renesas/r8a774c0-cpg-mssr.c b/drivers/clk/renesas/r8a774c0-cpg-mssr.c
new file mode 100644
index 0000000..10b9689
--- /dev/null
+++ b/drivers/clk/renesas/r8a774c0-cpg-mssr.c
@@ -0,0 +1,286 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * r8a774c0 Clock Pulse Generator / Module Standby and Software Reset
+ *
+ * Copyright (C) 2018 Renesas Electronics Corp.
+ *
+ * Based on r8a77990-cpg-mssr.c
+ *
+ * Copyright (C) 2015 Glider bvba
+ * Copyright (C) 2015 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/r8a774c0-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 = R8A774C0_CLK_CPEX,
+
+ /* External Input Clocks */
+ CLK_EXTAL,
+
+ /* Internal Core Clocks */
+ CLK_MAIN,
+ CLK_PLL0,
+ CLK_PLL1,
+ CLK_PLL3,
+ CLK_PLL0D4,
+ CLK_PLL0D8,
+ CLK_PLL0D20,
+ CLK_PLL0D24,
+ CLK_PLL1D2,
+ CLK_PE,
+ CLK_S0,
+ CLK_S1,
+ CLK_S2,
+ CLK_S3,
+ CLK_SDSRC,
+ CLK_RINT,
+ CLK_OCO,
+
+ /* Module Clocks */
+ MOD_CLK_BASE
+};
+
+static const struct cpg_core_clk r8a774c0_core_clks[] __initconst = {
+ /* 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, 1, 100),
+ DEF_FIXED(".pll0d4", CLK_PLL0D4, CLK_PLL0, 4, 1),
+ DEF_FIXED(".pll0d8", CLK_PLL0D8, CLK_PLL0, 8, 1),
+ DEF_FIXED(".pll0d20", CLK_PLL0D20, CLK_PLL0, 20, 1),
+ DEF_FIXED(".pll0d24", CLK_PLL0D24, CLK_PLL0, 24, 1),
+ DEF_FIXED(".pll1d2", CLK_PLL1D2, CLK_PLL1, 2, 1),
+ DEF_FIXED(".pe", CLK_PE, CLK_PLL0D20, 1, 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),
+
+ DEF_DIV6_RO(".r", CLK_RINT, CLK_EXTAL, CPG_RCKCR, 32),
+
+ DEF_RATE(".oco", CLK_OCO, 8 * 1000 * 1000),
+
+ /* Core Clock Outputs */
+ DEF_FIXED("za2", R8A774C0_CLK_ZA2, CLK_PLL0D24, 1, 1),
+ DEF_FIXED("za8", R8A774C0_CLK_ZA8, CLK_PLL0D8, 1, 1),
+ DEF_FIXED("ztr", R8A774C0_CLK_ZTR, CLK_PLL1, 6, 1),
+ DEF_FIXED("zt", R8A774C0_CLK_ZT, CLK_PLL1, 4, 1),
+ DEF_FIXED("zx", R8A774C0_CLK_ZX, CLK_PLL1, 3, 1),
+ DEF_FIXED("s0d1", R8A774C0_CLK_S0D1, CLK_S0, 1, 1),
+ DEF_FIXED("s0d3", R8A774C0_CLK_S0D3, CLK_S0, 3, 1),
+ DEF_FIXED("s0d6", R8A774C0_CLK_S0D6, CLK_S0, 6, 1),
+ DEF_FIXED("s0d12", R8A774C0_CLK_S0D12, CLK_S0, 12, 1),
+ DEF_FIXED("s0d24", R8A774C0_CLK_S0D24, CLK_S0, 24, 1),
+ DEF_FIXED("s1d1", R8A774C0_CLK_S1D1, CLK_S1, 1, 1),
+ DEF_FIXED("s1d2", R8A774C0_CLK_S1D2, CLK_S1, 2, 1),
+ DEF_FIXED("s1d4", R8A774C0_CLK_S1D4, CLK_S1, 4, 1),
+ DEF_FIXED("s2d1", R8A774C0_CLK_S2D1, CLK_S2, 1, 1),
+ DEF_FIXED("s2d2", R8A774C0_CLK_S2D2, CLK_S2, 2, 1),
+ DEF_FIXED("s2d4", R8A774C0_CLK_S2D4, CLK_S2, 4, 1),
+ DEF_FIXED("s3d1", R8A774C0_CLK_S3D1, CLK_S3, 1, 1),
+ DEF_FIXED("s3d2", R8A774C0_CLK_S3D2, CLK_S3, 2, 1),
+ DEF_FIXED("s3d4", R8A774C0_CLK_S3D4, CLK_S3, 4, 1),
+
+ DEF_GEN3_SD("sd0", R8A774C0_CLK_SD0, CLK_SDSRC, 0x0074),
+ DEF_GEN3_SD("sd1", R8A774C0_CLK_SD1, CLK_SDSRC, 0x0078),
+ DEF_GEN3_SD("sd3", R8A774C0_CLK_SD3, CLK_SDSRC, 0x026c),
+
+ DEF_FIXED("cl", R8A774C0_CLK_CL, CLK_PLL1, 48, 1),
+ DEF_FIXED("cp", R8A774C0_CLK_CP, CLK_EXTAL, 2, 1),
+ DEF_FIXED("cpex", R8A774C0_CLK_CPEX, CLK_EXTAL, 4, 1),
+
+ DEF_DIV6_RO("osc", R8A774C0_CLK_OSC, CLK_EXTAL, CPG_RCKCR, 8),
+
+ DEF_GEN3_PE("s0d6c", R8A774C0_CLK_S0D6C, CLK_S0, 6, CLK_PE, 2),
+ DEF_GEN3_PE("s3d1c", R8A774C0_CLK_S3D1C, CLK_S3, 1, CLK_PE, 1),
+ DEF_GEN3_PE("s3d2c", R8A774C0_CLK_S3D2C, CLK_S3, 2, CLK_PE, 2),
+ DEF_GEN3_PE("s3d4c", R8A774C0_CLK_S3D4C, CLK_S3, 4, CLK_PE, 4),
+
+ DEF_DIV6P1("csi0", R8A774C0_CLK_CSI0, CLK_PLL1D2, 0x00c),
+ DEF_DIV6P1("mso", R8A774C0_CLK_MSO, CLK_PLL1D2, 0x014),
+
+ DEF_GEN3_RCKSEL("r", R8A774C0_CLK_R, CLK_RINT, 1, CLK_OCO, 61 * 4),
+};
+
+static const struct mssr_mod_clk r8a774c0_mod_clks[] __initconst = {
+ DEF_MOD("scif5", 202, R8A774C0_CLK_S3D4C),
+ DEF_MOD("scif4", 203, R8A774C0_CLK_S3D4C),
+ DEF_MOD("scif3", 204, R8A774C0_CLK_S3D4C),
+ DEF_MOD("scif1", 206, R8A774C0_CLK_S3D4C),
+ DEF_MOD("scif0", 207, R8A774C0_CLK_S3D4C),
+ DEF_MOD("msiof3", 208, R8A774C0_CLK_MSO),
+ DEF_MOD("msiof2", 209, R8A774C0_CLK_MSO),
+ DEF_MOD("msiof1", 210, R8A774C0_CLK_MSO),
+ DEF_MOD("msiof0", 211, R8A774C0_CLK_MSO),
+ DEF_MOD("sys-dmac2", 217, R8A774C0_CLK_S3D1),
+ DEF_MOD("sys-dmac1", 218, R8A774C0_CLK_S3D1),
+ DEF_MOD("sys-dmac0", 219, R8A774C0_CLK_S3D1),
+
+ DEF_MOD("cmt3", 300, R8A774C0_CLK_R),
+ DEF_MOD("cmt2", 301, R8A774C0_CLK_R),
+ DEF_MOD("cmt1", 302, R8A774C0_CLK_R),
+ DEF_MOD("cmt0", 303, R8A774C0_CLK_R),
+ DEF_MOD("scif2", 310, R8A774C0_CLK_S3D4C),
+ DEF_MOD("sdif3", 311, R8A774C0_CLK_SD3),
+ DEF_MOD("sdif1", 313, R8A774C0_CLK_SD1),
+ DEF_MOD("sdif0", 314, R8A774C0_CLK_SD0),
+ DEF_MOD("pcie0", 319, R8A774C0_CLK_S3D1),
+ DEF_MOD("usb3-if0", 328, R8A774C0_CLK_S3D1),
+ DEF_MOD("usb-dmac0", 330, R8A774C0_CLK_S3D1),
+ DEF_MOD("usb-dmac1", 331, R8A774C0_CLK_S3D1),
+
+ DEF_MOD("rwdt", 402, R8A774C0_CLK_R),
+ DEF_MOD("intc-ex", 407, R8A774C0_CLK_CP),
+ DEF_MOD("intc-ap", 408, R8A774C0_CLK_S0D3),
+
+ DEF_MOD("audmac0", 502, R8A774C0_CLK_S3D4),
+ DEF_MOD("hscif4", 516, R8A774C0_CLK_S3D1C),
+ DEF_MOD("hscif3", 517, R8A774C0_CLK_S3D1C),
+ DEF_MOD("hscif2", 518, R8A774C0_CLK_S3D1C),
+ DEF_MOD("hscif1", 519, R8A774C0_CLK_S3D1C),
+ DEF_MOD("hscif0", 520, R8A774C0_CLK_S3D1C),
+ DEF_MOD("thermal", 522, R8A774C0_CLK_CP),
+ DEF_MOD("pwm", 523, R8A774C0_CLK_S3D4C),
+
+ DEF_MOD("fcpvd1", 602, R8A774C0_CLK_S1D2),
+ DEF_MOD("fcpvd0", 603, R8A774C0_CLK_S1D2),
+ DEF_MOD("fcpvb0", 607, R8A774C0_CLK_S0D1),
+ DEF_MOD("fcpvi0", 611, R8A774C0_CLK_S0D1),
+ DEF_MOD("fcpf0", 615, R8A774C0_CLK_S0D1),
+ DEF_MOD("fcpcs", 619, R8A774C0_CLK_S0D1),
+ DEF_MOD("vspd1", 622, R8A774C0_CLK_S1D2),
+ DEF_MOD("vspd0", 623, R8A774C0_CLK_S1D2),
+ DEF_MOD("vspb", 626, R8A774C0_CLK_S0D1),
+ DEF_MOD("vspi0", 631, R8A774C0_CLK_S0D1),
+
+ DEF_MOD("ehci0", 703, R8A774C0_CLK_S3D4),
+ DEF_MOD("hsusb", 704, R8A774C0_CLK_S3D4),
+ DEF_MOD("csi40", 716, R8A774C0_CLK_CSI0),
+ DEF_MOD("du1", 723, R8A774C0_CLK_S2D1),
+ DEF_MOD("du0", 724, R8A774C0_CLK_S2D1),
+ DEF_MOD("lvds", 727, R8A774C0_CLK_S2D1),
+
+ DEF_MOD("vin5", 806, R8A774C0_CLK_S1D2),
+ DEF_MOD("vin4", 807, R8A774C0_CLK_S1D2),
+ DEF_MOD("etheravb", 812, R8A774C0_CLK_S3D2),
+
+ DEF_MOD("gpio6", 906, R8A774C0_CLK_S3D4),
+ DEF_MOD("gpio5", 907, R8A774C0_CLK_S3D4),
+ DEF_MOD("gpio4", 908, R8A774C0_CLK_S3D4),
+ DEF_MOD("gpio3", 909, R8A774C0_CLK_S3D4),
+ DEF_MOD("gpio2", 910, R8A774C0_CLK_S3D4),
+ DEF_MOD("gpio1", 911, R8A774C0_CLK_S3D4),
+ DEF_MOD("gpio0", 912, R8A774C0_CLK_S3D4),
+ DEF_MOD("can-if1", 915, R8A774C0_CLK_S3D4),
+ DEF_MOD("can-if0", 916, R8A774C0_CLK_S3D4),
+ DEF_MOD("i2c6", 918, R8A774C0_CLK_S3D2),
+ DEF_MOD("i2c5", 919, R8A774C0_CLK_S3D2),
+ DEF_MOD("i2c-dvfs", 926, R8A774C0_CLK_CP),
+ DEF_MOD("i2c4", 927, R8A774C0_CLK_S3D2),
+ DEF_MOD("i2c3", 928, R8A774C0_CLK_S3D2),
+ DEF_MOD("i2c2", 929, R8A774C0_CLK_S3D2),
+ DEF_MOD("i2c1", 930, R8A774C0_CLK_S3D2),
+ DEF_MOD("i2c0", 931, R8A774C0_CLK_S3D2),
+
+ DEF_MOD("i2c7", 1003, R8A774C0_CLK_S3D2),
+ DEF_MOD("ssi-all", 1005, R8A774C0_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, R8A774C0_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 r8a774c0_crit_mod_clks[] __initconst = {
+ MOD_CLK_ID(408), /* INTC-AP (GIC) */
+};
+
+/*
+ * CPG Clock Data
+ */
+
+/*
+ * MD19 EXTAL (MHz) PLL0 PLL1 PLL3
+ *--------------------------------------------------------------------
+ * 0 48 x 1 x100/1 x100/3 x100/3
+ * 1 48 x 1 x100/1 x100/3 x58/3
+ */
+#define CPG_PLL_CONFIG_INDEX(md) (((md) & BIT(19)) >> 19)
+
+static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[2] __initconst = {
+ /* EXTAL div PLL1 mult/div PLL3 mult/div */
+ { 1, 100, 3, 100, 3, },
+ { 1, 100, 3, 58, 3, },
+};
+
+static int __init r8a774c0_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)];
+
+ return rcar_gen3_cpg_init(cpg_pll_config, 0, cpg_mode);
+}
+
+const struct cpg_mssr_info r8a774c0_cpg_mssr_info __initconst = {
+ /* Core Clocks */
+ .core_clks = r8a774c0_core_clks,
+ .num_core_clks = ARRAY_SIZE(r8a774c0_core_clks),
+ .last_dt_core_clk = LAST_DT_CORE_CLK,
+ .num_total_core_clks = MOD_CLK_BASE,
+
+ /* Module Clocks */
+ .mod_clks = r8a774c0_mod_clks,
+ .num_mod_clks = ARRAY_SIZE(r8a774c0_mod_clks),
+ .num_hw_mod_clks = 12 * 32,
+
+ /* Critical Module Clocks */
+ .crit_mod_clks = r8a774c0_crit_mod_clks,
+ .num_crit_mod_clks = ARRAY_SIZE(r8a774c0_crit_mod_clks),
+
+ /* Callbacks */
+ .init = r8a774c0_cpg_mssr_init,
+ .cpg_clk_register = rcar_gen3_cpg_clk_register,
+};
diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c
index f90b0d0..b00a33f 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.c
+++ b/drivers/clk/renesas/renesas-cpg-mssr.c
@@ -670,6 +670,12 @@ static const struct of_device_id cpg_mssr_match[] = {
.data = &r8a774a1_cpg_mssr_info,
},
#endif
+#ifdef CONFIG_CLK_R8A774C0
+ {
+ .compatible = "renesas,r8a774c0-cpg-mssr",
+ .data = &r8a774c0_cpg_mssr_info,
+ },
+#endif
#ifdef CONFIG_CLK_R8A7790
{
.compatible = "renesas,r8a7790-cpg-mssr",
diff --git a/drivers/clk/renesas/renesas-cpg-mssr.h b/drivers/clk/renesas/renesas-cpg-mssr.h
index 2e1730b..b5adf42 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.h
+++ b/drivers/clk/renesas/renesas-cpg-mssr.h
@@ -138,6 +138,7 @@ extern const struct cpg_mssr_info r8a7743_cpg_mssr_info;
extern const struct cpg_mssr_info r8a7745_cpg_mssr_info;
extern const struct cpg_mssr_info r8a77470_cpg_mssr_info;
extern const struct cpg_mssr_info r8a774a1_cpg_mssr_info;
+extern const struct cpg_mssr_info r8a774c0_cpg_mssr_info;
extern const struct cpg_mssr_info r8a7790_cpg_mssr_info;
extern const struct cpg_mssr_info r8a7791_cpg_mssr_info;
extern const struct cpg_mssr_info r8a7792_cpg_mssr_info;
--
2.7.4

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