[PATCH 5/5] clk: renesas: cpg-mssr: Add r8a774a1 support

[Biju Das <biju.das@bp.renesas.com>]

Add RZ/G2M (R8A774A1) Clock Pulse Generator / Module Standby and Software
Reset support.

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

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
---
 .../devicetree/bindings/clock/renesas,cpg-mssr.txt |   9 +-
 drivers/clk/renesas/Kconfig                        |   5 +
 drivers/clk/renesas/Makefile                       |   1 +
 drivers/clk/renesas/r8a774a1-cpg-mssr.c            | 322 +++++++++++++++++++++
 drivers/clk/renesas/renesas-cpg-mssr.c             |   6 +
 drivers/clk/renesas/renesas-cpg-mssr.h             |   1 +
 6 files changed, 340 insertions(+), 4 deletions(-)
 create mode 100644 drivers/clk/renesas/r8a774a1-cpg-mssr.c

diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt
index db542ab..42d0f83 100644
--- a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt
+++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt
@@ -16,6 +16,7 @@ Required Properties:
       - "renesas,r8a7743-cpg-mssr" for the r8a7743 SoC (RZ/G1M)
       - "renesas,r8a7745-cpg-mssr" for the r8a7745 SoC (RZ/G1E)
       - "renesas,r8a77470-cpg-mssr" for the r8a77470 SoC (RZ/G1C)
+      - "renesas,r8a774a1-cpg-mssr" for the r8a774a1 SoC (RZ/G2M)
       - "renesas,r8a7790-cpg-mssr" for the r8a7790 SoC (R-Car H2)
       - "renesas,r8a7791-cpg-mssr" for the r8a7791 SoC (R-Car M2-W)
       - "renesas,r8a7792-cpg-mssr" for the r8a7792 SoC (R-Car V2H)
@@ -35,10 +36,10 @@ Required Properties:
   - clocks: References to external parent clocks, one entry for each entry in
     clock-names
   - clock-names: List of external parent clock names. Valid names are:
-      - "extal" (r8a7743, r8a7745, r8a77470, r8a7790, r8a7791, r8a7792,
-		 r8a7793, r8a7794, r8a7795, r8a7796, r8a77965, r8a77970,
-		 r8a77980, r8a77990, r8a77995)
-      - "extalr" (r8a7795, r8a7796, r8a77965, r8a77970, r8a77980)
+      - "extal" (r8a7743, r8a7745, r8a77470, r8a774a1, r8a7790, r8a7791,
+		 r8a7792, r8a7793, r8a7794, r8a7795, r8a7796, r8a77965,
+		 r8a77970, r8a77980, r8a77990, r8a77995)
+      - "extalr" (r8a774a1, r8a7795, r8a7796, r8a77965, r8a77970, r8a77980)
       - "usb_extal" (r8a7743, r8a7745, r8a77470, r8a7790, r8a7791, r8a7793,
 		     r8a7794)
 
diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig
index f9ba71311..fd36f18 100644
--- a/drivers/clk/renesas/Kconfig
+++ b/drivers/clk/renesas/Kconfig
@@ -8,6 +8,7 @@ config CLK_RENESAS
 	select CLK_R8A7743 if ARCH_R8A7743
 	select CLK_R8A7745 if ARCH_R8A7745
 	select CLK_R8A77470 if ARCH_R8A77470
+	select CLK_R8A774A1 if ARCH_R8A774A1
 	select CLK_R8A7778 if ARCH_R8A7778
 	select CLK_R8A7779 if ARCH_R8A7779
 	select CLK_R8A7790 if ARCH_R8A7790
@@ -66,6 +67,10 @@ config CLK_R8A77470
 	bool "RZ/G1C clock support" if COMPILE_TEST
 	select CLK_RCAR_GEN2_CPG
 
+config CLK_R8A774A1
+	bool "RZ/G2M 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 fe5bac9..0eb56bc 100644
--- a/drivers/clk/renesas/Makefile
+++ b/drivers/clk/renesas/Makefile
@@ -7,6 +7,7 @@ obj-$(CONFIG_CLK_R8A7740)		+= clk-r8a7740.o
 obj-$(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_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/r8a774a1-cpg-mssr.c b/drivers/clk/renesas/r8a774a1-cpg-mssr.c
new file mode 100644
index 0000000..0993513
--- /dev/null
+++ b/drivers/clk/renesas/r8a774a1-cpg-mssr.c
@@ -0,0 +1,322 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * r8a774a1 Clock Pulse Generator / Module Standby and Software Reset
+ *
+ * Copyright (C) 2018 Renesas Electronics Corp.
+ *
+ * Based on r8a7796-cpg-mssr.c
+ *
+ * Copyright (C) 2016 Glider bvba
+ */
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/soc/renesas/rcar-rst.h>
+
+#include <dt-bindings/clock/r8a774a1-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 = R8A774A1_CLK_OSC,
+
+	/* External Input Clocks */
+	CLK_EXTAL,
+	CLK_EXTALR,
+
+	/* Internal Core Clocks */
+	CLK_MAIN,
+	CLK_PLL0,
+	CLK_PLL1,
+	CLK_PLL2,
+	CLK_PLL3,
+	CLK_PLL4,
+	CLK_PLL1_DIV2,
+	CLK_PLL1_DIV4,
+	CLK_S0,
+	CLK_S1,
+	CLK_S2,
+	CLK_S3,
+	CLK_SDSRC,
+	CLK_RINT,
+
+	/* Module Clocks */
+	MOD_CLK_BASE
+};
+
+static const struct cpg_core_clk r8a774a1_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(".pll2",       CLK_PLL2, CLK_TYPE_GEN3_PLL2, CLK_MAIN),
+	DEF_BASE(".pll3",       CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN),
+	DEF_BASE(".pll4",       CLK_PLL4, CLK_TYPE_GEN3_PLL4, 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),
+	DEF_FIXED(".s0",        CLK_S0,            CLK_PLL1_DIV2,  2, 1),
+	DEF_FIXED(".s1",        CLK_S1,            CLK_PLL1_DIV2,  3, 1),
+	DEF_FIXED(".s2",        CLK_S2,            CLK_PLL1_DIV2,  4, 1),
+	DEF_FIXED(".s3",        CLK_S3,            CLK_PLL1_DIV2,  6, 1),
+	DEF_FIXED(".sdsrc",     CLK_SDSRC,         CLK_PLL1_DIV2,  2, 1),
+
+	/* Core Clock Outputs */
+	DEF_BASE("z",           R8A774A1_CLK_Z,     CLK_TYPE_GEN3_Z, CLK_PLL0),
+	DEF_BASE("z2",          R8A774A1_CLK_Z2,    CLK_TYPE_GEN3_Z2, CLK_PLL2),
+	DEF_FIXED("ztr",        R8A774A1_CLK_ZTR,   CLK_PLL1_DIV2,  6, 1),
+	DEF_FIXED("ztrd2",      R8A774A1_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
+	DEF_FIXED("zt",         R8A774A1_CLK_ZT,    CLK_PLL1_DIV2,  4, 1),
+	DEF_FIXED("zx",         R8A774A1_CLK_ZX,    CLK_PLL1_DIV2,  2, 1),
+	DEF_FIXED("s0d1",       R8A774A1_CLK_S0D1,  CLK_S0,         1, 1),
+	DEF_FIXED("s0d2",       R8A774A1_CLK_S0D2,  CLK_S0,         2, 1),
+	DEF_FIXED("s0d3",       R8A774A1_CLK_S0D3,  CLK_S0,         3, 1),
+	DEF_FIXED("s0d4",       R8A774A1_CLK_S0D4,  CLK_S0,         4, 1),
+	DEF_FIXED("s0d6",       R8A774A1_CLK_S0D6,  CLK_S0,         6, 1),
+	DEF_FIXED("s0d8",       R8A774A1_CLK_S0D8,  CLK_S0,         8, 1),
+	DEF_FIXED("s0d12",      R8A774A1_CLK_S0D12, CLK_S0,        12, 1),
+	DEF_FIXED("s1d2",       R8A774A1_CLK_S1D2,  CLK_S1,         2, 1),
+	DEF_FIXED("s1d4",       R8A774A1_CLK_S1D4,  CLK_S1,         4, 1),
+	DEF_FIXED("s2d1",       R8A774A1_CLK_S2D1,  CLK_S2,         1, 1),
+	DEF_FIXED("s2d2",       R8A774A1_CLK_S2D2,  CLK_S2,         2, 1),
+	DEF_FIXED("s2d4",       R8A774A1_CLK_S2D4,  CLK_S2,         4, 1),
+	DEF_FIXED("s3d1",       R8A774A1_CLK_S3D1,  CLK_S3,         1, 1),
+	DEF_FIXED("s3d2",       R8A774A1_CLK_S3D2,  CLK_S3,         2, 1),
+	DEF_FIXED("s3d4",       R8A774A1_CLK_S3D4,  CLK_S3,         4, 1),
+
+	DEF_GEN3_SD("sd0",      R8A774A1_CLK_SD0,   CLK_SDSRC,     0x074),
+	DEF_GEN3_SD("sd1",      R8A774A1_CLK_SD1,   CLK_SDSRC,     0x078),
+	DEF_GEN3_SD("sd2",      R8A774A1_CLK_SD2,   CLK_SDSRC,     0x268),
+	DEF_GEN3_SD("sd3",      R8A774A1_CLK_SD3,   CLK_SDSRC,     0x26c),
+
+	DEF_FIXED("cl",         R8A774A1_CLK_CL,    CLK_PLL1_DIV2, 48, 1),
+	DEF_FIXED("cp",         R8A774A1_CLK_CP,    CLK_EXTAL,      2, 1),
+
+	DEF_DIV6P1("csi0",      R8A774A1_CLK_CSI0,  CLK_PLL1_DIV4, 0x00c),
+	DEF_DIV6P1("mso",       R8A774A1_CLK_MSO,   CLK_PLL1_DIV4, 0x014),
+	DEF_DIV6P1("hdmi",      R8A774A1_CLK_HDMI,  CLK_PLL1_DIV4, 0x250),
+
+	DEF_DIV6_RO("osc",      R8A774A1_CLK_OSC,   CLK_EXTAL, CPG_RCKCR,  8),
+	DEF_DIV6_RO("r_int",    CLK_RINT,          CLK_EXTAL, CPG_RCKCR, 32),
+
+	DEF_BASE("r",           R8A774A1_CLK_R,     CLK_TYPE_GEN3_R, CLK_RINT),
+};
+
+static const struct mssr_mod_clk r8a774a1_mod_clks[] __initconst = {
+	DEF_MOD("fdp1-0",		 119,	R8A774A1_CLK_S0D1),
+	DEF_MOD("scif5",		 202,	R8A774A1_CLK_S3D4),
+	DEF_MOD("scif4",		 203,	R8A774A1_CLK_S3D4),
+	DEF_MOD("scif3",		 204,	R8A774A1_CLK_S3D4),
+	DEF_MOD("scif1",		 206,	R8A774A1_CLK_S3D4),
+	DEF_MOD("scif0",		 207,	R8A774A1_CLK_S3D4),
+	DEF_MOD("msiof3",		 208,	R8A774A1_CLK_MSO),
+	DEF_MOD("msiof2",		 209,	R8A774A1_CLK_MSO),
+	DEF_MOD("msiof1",		 210,	R8A774A1_CLK_MSO),
+	DEF_MOD("msiof0",		 211,	R8A774A1_CLK_MSO),
+	DEF_MOD("sys-dmac2",		 217,	R8A774A1_CLK_S0D3),
+	DEF_MOD("sys-dmac1",		 218,	R8A774A1_CLK_S0D3),
+	DEF_MOD("sys-dmac0",		 219,	R8A774A1_CLK_S0D3),
+	DEF_MOD("cmt3",			 300,	R8A774A1_CLK_R),
+	DEF_MOD("cmt2",			 301,	R8A774A1_CLK_R),
+	DEF_MOD("cmt1",			 302,	R8A774A1_CLK_R),
+	DEF_MOD("cmt0",			 303,	R8A774A1_CLK_R),
+	DEF_MOD("scif2",		 310,	R8A774A1_CLK_S3D4),
+	DEF_MOD("sdif3",		 311,	R8A774A1_CLK_SD3),
+	DEF_MOD("sdif2",		 312,	R8A774A1_CLK_SD2),
+	DEF_MOD("sdif1",		 313,	R8A774A1_CLK_SD1),
+	DEF_MOD("sdif0",		 314,	R8A774A1_CLK_SD0),
+	DEF_MOD("pcie1",		 318,	R8A774A1_CLK_S3D1),
+	DEF_MOD("pcie0",		 319,	R8A774A1_CLK_S3D1),
+	DEF_MOD("usb3-if0",		 328,	R8A774A1_CLK_S3D1),
+	DEF_MOD("usb-dmac0",		 330,	R8A774A1_CLK_S3D1),
+	DEF_MOD("usb-dmac1",		 331,	R8A774A1_CLK_S3D1),
+	DEF_MOD("rwdt",			 402,	R8A774A1_CLK_R),
+	DEF_MOD("intc-ex",		 407,	R8A774A1_CLK_CP),
+	DEF_MOD("intc-ap",		 408,	R8A774A1_CLK_S0D3),
+	DEF_MOD("audmac1",		 501,	R8A774A1_CLK_S0D3),
+	DEF_MOD("audmac0",		 502,	R8A774A1_CLK_S0D3),
+	DEF_MOD("hscif4",		 516,	R8A774A1_CLK_S3D1),
+	DEF_MOD("hscif3",		 517,	R8A774A1_CLK_S3D1),
+	DEF_MOD("hscif2",		 518,	R8A774A1_CLK_S3D1),
+	DEF_MOD("hscif1",		 519,	R8A774A1_CLK_S3D1),
+	DEF_MOD("hscif0",		 520,	R8A774A1_CLK_S3D1),
+	DEF_MOD("thermal",		 522,	R8A774A1_CLK_CP),
+	DEF_MOD("pwm",			 523,	R8A774A1_CLK_S0D12),
+	DEF_MOD("fcpvd2",		 601,	R8A774A1_CLK_S0D2),
+	DEF_MOD("fcpvd1",		 602,	R8A774A1_CLK_S0D2),
+	DEF_MOD("fcpvd0",		 603,	R8A774A1_CLK_S0D2),
+	DEF_MOD("fcpvb0",		 607,	R8A774A1_CLK_S0D1),
+	DEF_MOD("fcpvi0",		 611,	R8A774A1_CLK_S0D1),
+	DEF_MOD("fcpf0",		 615,	R8A774A1_CLK_S0D1),
+	DEF_MOD("fcpci0",		 617,	R8A774A1_CLK_S0D2),
+	DEF_MOD("fcpcs",		 619,	R8A774A1_CLK_S0D2),
+	DEF_MOD("vspd2",		 621,	R8A774A1_CLK_S0D2),
+	DEF_MOD("vspd1",		 622,	R8A774A1_CLK_S0D2),
+	DEF_MOD("vspd0",		 623,	R8A774A1_CLK_S0D2),
+	DEF_MOD("vspb",			 626,	R8A774A1_CLK_S0D1),
+	DEF_MOD("vspi0",		 631,	R8A774A1_CLK_S0D1),
+	DEF_MOD("ehci1",		 702,	R8A774A1_CLK_S3D4),
+	DEF_MOD("ehci0",		 703,	R8A774A1_CLK_S3D4),
+	DEF_MOD("hsusb",		 704,	R8A774A1_CLK_S3D4),
+	DEF_MOD("csi20",		 714,	R8A774A1_CLK_CSI0),
+	DEF_MOD("csi40",		 716,	R8A774A1_CLK_CSI0),
+	DEF_MOD("du2",			 722,	R8A774A1_CLK_S2D1),
+	DEF_MOD("du1",			 723,	R8A774A1_CLK_S2D1),
+	DEF_MOD("du0",			 724,	R8A774A1_CLK_S2D1),
+	DEF_MOD("lvds",			 727,	R8A774A1_CLK_S2D1),
+	DEF_MOD("hdmi0",		 729,	R8A774A1_CLK_HDMI),
+	DEF_MOD("vin7",			 804,	R8A774A1_CLK_S0D2),
+	DEF_MOD("vin6",			 805,	R8A774A1_CLK_S0D2),
+	DEF_MOD("vin5",			 806,	R8A774A1_CLK_S0D2),
+	DEF_MOD("vin4",			 807,	R8A774A1_CLK_S0D2),
+	DEF_MOD("vin3",			 808,	R8A774A1_CLK_S0D2),
+	DEF_MOD("vin2",			 809,	R8A774A1_CLK_S0D2),
+	DEF_MOD("vin1",			 810,	R8A774A1_CLK_S0D2),
+	DEF_MOD("vin0",			 811,	R8A774A1_CLK_S0D2),
+	DEF_MOD("etheravb",		 812,	R8A774A1_CLK_S0D6),
+	DEF_MOD("gpio7",		 905,	R8A774A1_CLK_S3D4),
+	DEF_MOD("gpio6",		 906,	R8A774A1_CLK_S3D4),
+	DEF_MOD("gpio5",		 907,	R8A774A1_CLK_S3D4),
+	DEF_MOD("gpio4",		 908,	R8A774A1_CLK_S3D4),
+	DEF_MOD("gpio3",		 909,	R8A774A1_CLK_S3D4),
+	DEF_MOD("gpio2",		 910,	R8A774A1_CLK_S3D4),
+	DEF_MOD("gpio1",		 911,	R8A774A1_CLK_S3D4),
+	DEF_MOD("gpio0",		 912,	R8A774A1_CLK_S3D4),
+	DEF_MOD("can-if1",		 915,	R8A774A1_CLK_S3D4),
+	DEF_MOD("can-if0",		 916,	R8A774A1_CLK_S3D4),
+	DEF_MOD("i2c6",			 918,	R8A774A1_CLK_S0D6),
+	DEF_MOD("i2c5",			 919,	R8A774A1_CLK_S0D6),
+	DEF_MOD("i2c-dvfs",		 926,	R8A774A1_CLK_CP),
+	DEF_MOD("i2c4",			 927,	R8A774A1_CLK_S0D6),
+	DEF_MOD("i2c3",			 928,	R8A774A1_CLK_S0D6),
+	DEF_MOD("i2c2",			 929,	R8A774A1_CLK_S3D2),
+	DEF_MOD("i2c1",			 930,	R8A774A1_CLK_S3D2),
+	DEF_MOD("i2c0",			 931,	R8A774A1_CLK_S3D2),
+	DEF_MOD("ssi-all",		1005,	R8A774A1_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,	R8A774A1_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 r8a774a1_crit_mod_clks[] __initconst = {
+	MOD_CLK_ID(408),	/* INTC-AP (GIC) */
+};
+
+/*
+ * CPG Clock Data
+ */
+
+/*
+ *   MD		EXTAL		PLL0	PLL1	PLL2	PLL3	PLL4
+ * 14 13 19 17	(MHz)
+ *-------------------------------------------------------------------
+ * 0  0  0  0	16.66 x 1	x180	x192	x144	x192	x144
+ * 0  0  0  1	16.66 x 1	x180	x192	x144	x128	x144
+ * 0  0  1  0	Prohibited setting
+ * 0  0  1  1	16.66 x 1	x180	x192	x144	x192	x144
+ * 0  1  0  0	20    x 1	x150	x160	x120	x160	x120
+ * 0  1  0  1	20    x 1	x150	x160	x120	x106	x120
+ * 0  1  1  0	Prohibited setting
+ * 0  1  1  1	20    x 1	x150	x160	x120	x160	x120
+ * 1  0  0  0	25    x 1	x120	x128	x96	x128	x96
+ * 1  0  0  1	25    x 1	x120	x128	x96	x84	x96
+ * 1  0  1  0	Prohibited setting
+ * 1  0  1  1	25    x 1	x120	x128	x96	x128	x96
+ * 1  1  0  0	33.33 / 2	x180	x192	x144	x192	x144
+ * 1  1  0  1	33.33 / 2	x180	x192	x144	x128	x144
+ * 1  1  1  0	Prohibited setting
+ * 1  1  1  1	33.33 / 2	x180	x192	x144	x192	x144
+ */
+#define CPG_PLL_CONFIG_INDEX(md)	((((md) & BIT(14)) >> 11) | \
+					 (((md) & BIT(13)) >> 11) | \
+					 (((md) & BIT(19)) >> 18) | \
+					 (((md) & BIT(17)) >> 17))
+
+static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[16] __initconst = {
+	/* EXTAL div	PLL1 mult/div	PLL3 mult/div */
+	{ 1,		192,	1,	192,	1,	},
+	{ 1,		192,	1,	128,	1,	},
+	{ 0, /* Prohibited setting */			},
+	{ 1,		192,	1,	192,	1,	},
+	{ 1,		160,	1,	160,	1,	},
+	{ 1,		160,	1,	106,	1,	},
+	{ 0, /* Prohibited setting */			},
+	{ 1,		160,	1,	160,	1,	},
+	{ 1,		128,	1,	128,	1,	},
+	{ 1,		128,	1,	84,	1,	},
+	{ 0, /* Prohibited setting */			},
+	{ 1,		128,	1,	128,	1,	},
+	{ 2,		192,	1,	192,	1,	},
+	{ 2,		192,	1,	128,	1,	},
+	{ 0, /* Prohibited setting */			},
+	{ 2,		192,	1,	192,	1,	},
+};
+
+static int __init r8a774a1_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)];
+	if (!cpg_pll_config->extal_div) {
+		dev_err(dev, "Prohibited setting (cpg_mode=0x%x)\n", cpg_mode);
+		return -EINVAL;
+	}
+
+	return rcar_gen3_cpg_init(cpg_pll_config, CLK_EXTALR, cpg_mode);
+}
+
+const struct cpg_mssr_info r8a774a1_cpg_mssr_info __initconst = {
+	/* Core Clocks */
+	.core_clks = r8a774a1_core_clks,
+	.num_core_clks = ARRAY_SIZE(r8a774a1_core_clks),
+	.last_dt_core_clk = LAST_DT_CORE_CLK,
+	.num_total_core_clks = MOD_CLK_BASE,
+
+	/* Module Clocks */
+	.mod_clks = r8a774a1_mod_clks,
+	.num_mod_clks = ARRAY_SIZE(r8a774a1_mod_clks),
+	.num_hw_mod_clks = 12 * 32,
+
+	/* Critical Module Clocks */
+	.crit_mod_clks = r8a774a1_crit_mod_clks,
+	.num_crit_mod_clks = ARRAY_SIZE(r8a774a1_crit_mod_clks),
+
+	/* Callbacks */
+	.init = r8a774a1_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 f4b013e..0e4938a 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.c
+++ b/drivers/clk/renesas/renesas-cpg-mssr.c
@@ -659,6 +659,12 @@ static const struct of_device_id cpg_mssr_match[] = {
 		.data = &r8a77470_cpg_mssr_info,
 	},
 #endif
+#ifdef CONFIG_CLK_R8A774A1
+	{
+		.compatible = "renesas,r8a774a1-cpg-mssr",
+		.data = &r8a774a1_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 642f720..14e5a19 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.h
+++ b/drivers/clk/renesas/renesas-cpg-mssr.h
@@ -134,6 +134,7 @@ struct cpg_mssr_info {
 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 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