Merge branch 'master' of git://source.denx.de/u-boot-sh

- R-Car3 updates

18 files changed, 378 insertions, 9 deletions

diff --git a/arch/arm/dts/r8a77950-salvator-x-u-boot.dts b/arch/arm/dts/r8a77950-salvator-x-u-boot.dts
index 36c8a44..d94ad91 100644
--- a/arch/arm/dts/r8a77950-salvator-x-u-boot.dts
+++ b/arch/arm/dts/r8a77950-salvator-x-u-boot.dts
@@ -8,9 +8,26 @@
 #include "r8a77950-salvator-x.dts"
 #include "r8a77950-u-boot.dtsi"
 
+/ {
+	sysinfo {
+		compatible = "renesas,rcar-sysinfo";
+		i2c-eeprom = <&sysinfo_eeprom>;
+		u-boot,dm-pre-reloc;
+	};
+};
+
+&i2c_dvfs {
+	u-boot,dm-pre-reloc;
+
+	sysinfo_eeprom: eeprom@50 {
+		u-boot,dm-pre-reloc;
+		status = "okay";
+	};
+};
+
 &rpc {
 	reg = <0 0xee200000 0 0x100>, <0 0x08000000 0 0x04000000>;
-	status = "okay";
+	status = "disabled";
 };
 
 &sdhi0 {
diff --git a/arch/arm/dts/r8a77950-ulcb-u-boot.dts b/arch/arm/dts/r8a77950-ulcb-u-boot.dts
index d3191c5..ff00ccd 100644
--- a/arch/arm/dts/r8a77950-ulcb-u-boot.dts
+++ b/arch/arm/dts/r8a77950-ulcb-u-boot.dts
@@ -17,11 +17,29 @@
 		gpio-miso = <&gpio6 10 0>;
 		gpio-sstbz = <&gpio2 3 0>;
 	};
+
+	sysinfo {
+		compatible = "renesas,rcar-sysinfo";
+		i2c-eeprom = <&sysinfo_eeprom>;
+		u-boot,dm-pre-reloc;
+	};
+};
+
+&i2c_dvfs {
+	u-boot,dm-pre-reloc;
+
+	sysinfo_eeprom: eeprom@50 {
+		compatible = "rohm,br24t01", "atmel,24c01";
+		reg = <0x50>;
+		pagesize = <8>;
+		u-boot,dm-pre-reloc;
+		status = "okay";
+	};
 };
 
 &rpc {
 	reg = <0 0xee200000 0 0x100>, <0 0x08000000 0 0x04000000>;
-	status = "okay";
+	status = "disabled";
 };
 
 &sdhi0 {
diff --git a/arch/arm/dts/r8a77960-salvator-x-u-boot.dts b/arch/arm/dts/r8a77960-salvator-x-u-boot.dts
index 439fd6c..79a54f3 100644
--- a/arch/arm/dts/r8a77960-salvator-x-u-boot.dts
+++ b/arch/arm/dts/r8a77960-salvator-x-u-boot.dts
@@ -8,9 +8,26 @@
 #include "r8a77960-salvator-x.dts"
 #include "r8a77960-u-boot.dtsi"
 
+/ {
+	sysinfo {
+		compatible = "renesas,rcar-sysinfo";
+		i2c-eeprom = <&sysinfo_eeprom>;
+		u-boot,dm-pre-reloc;
+	};
+};
+
+&i2c_dvfs {
+	u-boot,dm-pre-reloc;
+
+	sysinfo_eeprom: eeprom@50 {
+		u-boot,dm-pre-reloc;
+		status = "okay";
+	};
+};
+
 &rpc {
 	reg = <0 0xee200000 0 0x100>, <0 0x08000000 0 0x04000000>;
-	status = "okay";
+	status = "disabled";
 };
 
 &sdhi0 {
diff --git a/arch/arm/dts/r8a77960-ulcb-u-boot.dts b/arch/arm/dts/r8a77960-ulcb-u-boot.dts
index aab9c95..1e9e8b8 100644
--- a/arch/arm/dts/r8a77960-ulcb-u-boot.dts
+++ b/arch/arm/dts/r8a77960-ulcb-u-boot.dts
@@ -17,11 +17,29 @@
 		gpio-miso = <&gpio6 10 0>;
 		gpio-sstbz = <&gpio2 3 0>;
 	};
+
+	sysinfo {
+		compatible = "renesas,rcar-sysinfo";
+		i2c-eeprom = <&sysinfo_eeprom>;
+		u-boot,dm-pre-reloc;
+	};
+};
+
+&i2c_dvfs {
+	u-boot,dm-pre-reloc;
+
+	sysinfo_eeprom: eeprom@50 {
+		compatible = "rohm,br24t01", "atmel,24c01";
+		reg = <0x50>;
+		pagesize = <8>;
+		u-boot,dm-pre-reloc;
+		status = "okay";
+	};
 };
 
 &rpc {
 	reg = <0 0xee200000 0 0x100>, <0 0x08000000 0 0x04000000>;
-	status = "okay";
+	status = "disabled";
 };
 
 &sdhi0 {
diff --git a/arch/arm/dts/r8a77965-salvator-x-u-boot.dts b/arch/arm/dts/r8a77965-salvator-x-u-boot.dts
index 8cbef83..4272ecc 100644
--- a/arch/arm/dts/r8a77965-salvator-x-u-boot.dts
+++ b/arch/arm/dts/r8a77965-salvator-x-u-boot.dts
@@ -8,9 +8,26 @@
 #include "r8a77965-salvator-x.dts"
 #include "r8a77965-u-boot.dtsi"
 
+/ {
+	sysinfo {
+		compatible = "renesas,rcar-sysinfo";
+		i2c-eeprom = <&sysinfo_eeprom>;
+		u-boot,dm-pre-reloc;
+	};
+};
+
+&i2c_dvfs {
+	u-boot,dm-pre-reloc;
+
+	sysinfo_eeprom: eeprom@50 {
+		u-boot,dm-pre-reloc;
+		status = "okay";
+	};
+};
+
 &rpc {
 	reg = <0 0xee200000 0 0x100>, <0 0x08000000 0 0x04000000>;
-	status = "okay";
+	status = "disabled";
 };
 
 &sdhi0 {
diff --git a/arch/arm/dts/r8a77965-ulcb-u-boot.dts b/arch/arm/dts/r8a77965-ulcb-u-boot.dts
index 38966bf..d9c680b 100644
--- a/arch/arm/dts/r8a77965-ulcb-u-boot.dts
+++ b/arch/arm/dts/r8a77965-ulcb-u-boot.dts
@@ -17,11 +17,29 @@
 		gpio-miso = <&gpio6 10 0>;
 		gpio-sstbz = <&gpio2 3 0>;
 	};
+
+	sysinfo {
+		compatible = "renesas,rcar-sysinfo";
+		i2c-eeprom = <&sysinfo_eeprom>;
+		u-boot,dm-pre-reloc;
+	};
+};
+
+&i2c_dvfs {
+	u-boot,dm-pre-reloc;
+
+	sysinfo_eeprom: eeprom@50 {
+		compatible = "rohm,br24t01", "atmel,24c01";
+		reg = <0x50>;
+		pagesize = <8>;
+		u-boot,dm-pre-reloc;
+		status = "okay";
+	};
 };
 
 &rpc {
 	reg = <0 0xee200000 0 0x100>, <0 0x08000000 0 0x04000000>;
-	status = "okay";
+	status = "disabled";
 };
 
 &sdhi0 {
diff --git a/arch/arm/dts/r8a77990-ebisu-u-boot.dts b/arch/arm/dts/r8a77990-ebisu-u-boot.dts
index 6afc0be..55699ba 100644
--- a/arch/arm/dts/r8a77990-ebisu-u-boot.dts
+++ b/arch/arm/dts/r8a77990-ebisu-u-boot.dts
@@ -8,6 +8,29 @@
 #include "r8a77990-ebisu.dts"
 #include "r8a77990-u-boot.dtsi"
 
+/ {
+	sysinfo {
+		compatible = "renesas,rcar-sysinfo";
+		i2c-eeprom = <&sysinfo_eeprom>;
+		u-boot,dm-pre-reloc;
+	};
+};
+
+&i2c_dvfs {
+	compatible = "renesas,iic-r8a77990",
+		     "renesas,rcar-gen3-iic",
+		     "renesas,rmobile-iic";
+	u-boot,dm-pre-reloc;
+
+	sysinfo_eeprom: eeprom@50 {
+		compatible = "rohm,br24t01", "atmel,24c01";
+		reg = <0x50>;
+		pagesize = <8>;
+		u-boot,dm-pre-reloc;
+		status = "okay";
+	};
+};
+
 &pfc {
 	pinctrl-0 = <&scif_clk_pins>;
 	pinctrl-names = "default";
@@ -20,7 +43,7 @@
 
 &rpc {
 	reg = <0 0xee200000 0 0x100>, <0 0x08000000 0 0x04000000>;
-	status = "okay";
+	status = "disabled";
 };
 
 &sdhi0 {
diff --git a/arch/arm/dts/r8a77995-draak-u-boot.dts b/arch/arm/dts/r8a77995-draak-u-boot.dts
index 10fb9cb..0ea2570 100644
--- a/arch/arm/dts/r8a77995-draak-u-boot.dts
+++ b/arch/arm/dts/r8a77995-draak-u-boot.dts
@@ -10,5 +10,5 @@
 
 &rpc {
 	reg = <0 0xee200000 0 0x100>, <0 0x08000000 0 0x04000000>;
-	status = "okay";
+	status = "disabled";
 };
diff --git a/arch/arm/mach-rmobile/cpu_info.c b/arch/arm/mach-rmobile/cpu_info.c
index 2bb6d50..bd9e717 100644
--- a/arch/arm/mach-rmobile/cpu_info.c
+++ b/arch/arm/mach-rmobile/cpu_info.c
@@ -119,7 +119,7 @@ int print_cpuinfo(void)
 {
 	int i = rmobile_cpuinfo_idx();
 
-	printf("CPU: Renesas Electronics %s rev %d.%d\n",
+	printf("CPU:   Renesas Electronics %s rev %d.%d\n",
 		get_cpu_name(i), rmobile_get_cpu_rev_integer(),
 		rmobile_get_cpu_rev_fraction());
 
diff --git a/configs/r8a77970_eagle_defconfig b/configs/r8a77970_eagle_defconfig
index 2e5fb60..99a99e13 100644
--- a/configs/r8a77970_eagle_defconfig
+++ b/configs/r8a77970_eagle_defconfig
@@ -32,6 +32,8 @@ CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
 CONFIG_OF_CONTROL=y
+CONFIG_OF_DTB_PROPS_REMOVE=y
+CONFIG_OF_REMOVE_PROPS="dmas dma-names interrupt-parent interrupts interrupts-extended interrupt-names interrupt-map interrupt-map-mask iommus"
 CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
diff --git a/configs/r8a77980_condor_defconfig b/configs/r8a77980_condor_defconfig
index 1b9948b..d7c34a7 100644
--- a/configs/r8a77980_condor_defconfig
+++ b/configs/r8a77980_condor_defconfig
@@ -33,6 +33,8 @@ CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
 CONFIG_OF_CONTROL=y
+CONFIG_OF_DTB_PROPS_REMOVE=y
+CONFIG_OF_REMOVE_PROPS="dmas dma-names interrupt-parent interrupts interrupts-extended interrupt-names interrupt-map interrupt-map-mask iommus"
 CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
diff --git a/configs/r8a77990_ebisu_defconfig b/configs/r8a77990_ebisu_defconfig
index 15743c1..0c5dcb0 100644
--- a/configs/r8a77990_ebisu_defconfig
+++ b/configs/r8a77990_ebisu_defconfig
@@ -34,6 +34,8 @@ CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
 CONFIG_OF_CONTROL=y
+CONFIG_OF_DTB_PROPS_REMOVE=y
+CONFIG_OF_REMOVE_PROPS="dmas dma-names interrupt-parent interrupts interrupts-extended interrupt-names interrupt-map interrupt-map-mask iommus"
 CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
@@ -50,6 +52,13 @@ CONFIG_DFU_SF=y
 CONFIG_RCAR_GPIO=y
 CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_RCAR_IIC=y
+CONFIG_MISC=y
+CONFIG_I2C_EEPROM=y
+CONFIG_SYS_I2C_EEPROM_ADDR=0x70
+CONFIG_SYS_I2C_EEPROM_BUS=7
+CONFIG_SYS_EEPROM_SIZE=128
+CONFIG_SYS_EEPROM_PAGE_WRITE_BITS=7
+CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS=10
 CONFIG_MMC_IO_VOLTAGE=y
 CONFIG_MMC_UHS_SUPPORT=y
 CONFIG_MMC_HS400_SUPPORT=y
@@ -76,6 +85,7 @@ CONFIG_SCIF_CONSOLE=y
 CONFIG_SPI=y
 CONFIG_DM_SPI=y
 CONFIG_RENESAS_RPC_SPI=y
+CONFIG_SYSINFO=y
 CONFIG_TEE=y
 CONFIG_OPTEE=y
 CONFIG_USB=y
diff --git a/configs/r8a77995_draak_defconfig b/configs/r8a77995_draak_defconfig
index 562b80b..b1186ee 100644
--- a/configs/r8a77995_draak_defconfig
+++ b/configs/r8a77995_draak_defconfig
@@ -33,6 +33,8 @@ CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
 CONFIG_OF_CONTROL=y
+CONFIG_OF_DTB_PROPS_REMOVE=y
+CONFIG_OF_REMOVE_PROPS="dmas dma-names interrupt-parent interrupts interrupts-extended interrupt-names interrupt-map interrupt-map-mask iommus"
 CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
diff --git a/configs/rcar3_salvator-x_defconfig b/configs/rcar3_salvator-x_defconfig
index efd6ca2..8e492ce 100644
--- a/configs/rcar3_salvator-x_defconfig
+++ b/configs/rcar3_salvator-x_defconfig
@@ -36,6 +36,8 @@ CONFIG_OF_CONTROL=y
 CONFIG_OF_LIST="r8a77950-salvator-x-u-boot r8a77960-salvator-x-u-boot r8a77965-salvator-x-u-boot"
 CONFIG_MULTI_DTB_FIT_LZO=y
 CONFIG_MULTI_DTB_FIT_USER_DEFINED_AREA=y
+CONFIG_OF_DTB_PROPS_REMOVE=y
+CONFIG_OF_REMOVE_PROPS="dmas dma-names interrupt-parent interrupts interrupts-extended interrupt-names interrupt-map interrupt-map-mask iommus"
 CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
@@ -52,6 +54,13 @@ CONFIG_DFU_SF=y
 CONFIG_RCAR_GPIO=y
 CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_RCAR_IIC=y
+CONFIG_MISC=y
+CONFIG_I2C_EEPROM=y
+CONFIG_SYS_I2C_EEPROM_ADDR=0x70
+CONFIG_SYS_I2C_EEPROM_BUS=7
+CONFIG_SYS_EEPROM_SIZE=128
+CONFIG_SYS_EEPROM_PAGE_WRITE_BITS=7
+CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS=10
 CONFIG_MMC_IO_VOLTAGE=y
 CONFIG_MMC_UHS_SUPPORT=y
 CONFIG_MMC_HS400_SUPPORT=y
@@ -83,6 +92,7 @@ CONFIG_SCIF_CONSOLE=y
 CONFIG_SPI=y
 CONFIG_DM_SPI=y
 CONFIG_RENESAS_RPC_SPI=y
+CONFIG_SYSINFO=y
 CONFIG_TEE=y
 CONFIG_OPTEE=y
 CONFIG_USB=y
diff --git a/configs/rcar3_ulcb_defconfig b/configs/rcar3_ulcb_defconfig
index a857e5b..e348758 100644
--- a/configs/rcar3_ulcb_defconfig
+++ b/configs/rcar3_ulcb_defconfig
@@ -36,6 +36,8 @@ CONFIG_OF_CONTROL=y
 CONFIG_OF_LIST="r8a77950-ulcb-u-boot r8a77960-ulcb-u-boot r8a77965-ulcb-u-boot"
 CONFIG_MULTI_DTB_FIT_LZO=y
 CONFIG_MULTI_DTB_FIT_USER_DEFINED_AREA=y
+CONFIG_OF_DTB_PROPS_REMOVE=y
+CONFIG_OF_REMOVE_PROPS="dmas dma-names interrupt-parent interrupts interrupts-extended interrupt-names interrupt-map interrupt-map-mask iommus"
 CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
@@ -52,6 +54,13 @@ CONFIG_DFU_SF=y
 CONFIG_RCAR_GPIO=y
 CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_RCAR_IIC=y
+CONFIG_MISC=y
+CONFIG_I2C_EEPROM=y
+CONFIG_SYS_I2C_EEPROM_ADDR=0x70
+CONFIG_SYS_I2C_EEPROM_BUS=7
+CONFIG_SYS_EEPROM_SIZE=128
+CONFIG_SYS_EEPROM_PAGE_WRITE_BITS=7
+CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS=10
 CONFIG_MMC_IO_VOLTAGE=y
 CONFIG_MMC_UHS_SUPPORT=y
 CONFIG_MMC_HS400_SUPPORT=y
@@ -79,6 +88,7 @@ CONFIG_SPI=y
 CONFIG_DM_SPI=y
 CONFIG_RENESAS_RPC_SPI=y
 CONFIG_SYSRESET=y
+CONFIG_SYSINFO=y
 CONFIG_TEE=y
 CONFIG_OPTEE=y
 CONFIG_USB=y
diff --git a/drivers/sysinfo/Kconfig b/drivers/sysinfo/Kconfig
index 381dcd8..e35f7cb 100644
--- a/drivers/sysinfo/Kconfig
+++ b/drivers/sysinfo/Kconfig
@@ -17,6 +17,13 @@ config SYSINFO_GAZERBEAM
 	help
 	  Support querying device information for the gdsys Gazerbeam board.
 
+config SYSINFO_RCAR3
+	bool "Enable sysinfo driver for the Renesas R-Car Gen3"
+	depends on RCAR_GEN3 && I2C_EEPROM
+	default y if RCAR_GEN3
+	help
+	  Support querying SoC version information for Renesas R-Car Gen3.
+
 config SYSINFO_SANDBOX
 	bool "Enable sysinfo driver for the Sandbox board"
 	help
diff --git a/drivers/sysinfo/Makefile b/drivers/sysinfo/Makefile
index d9f708b..680dde7 100644
--- a/drivers/sysinfo/Makefile
+++ b/drivers/sysinfo/Makefile
@@ -5,5 +5,6 @@
 obj-y += sysinfo-uclass.o
 obj-$(CONFIG_SYSINFO_GAZERBEAM) += gazerbeam.o
 obj-$(CONFIG_SYSINFO_GPIO) += gpio.o
+obj-$(CONFIG_SYSINFO_RCAR3) += rcar3.o
 obj-$(CONFIG_SYSINFO_SANDBOX) += sandbox.o
 obj-$(CONFIG_SYSINFO_SMBIOS) += smbios.o
diff --git a/drivers/sysinfo/rcar3.c b/drivers/sysinfo/rcar3.c
new file mode 100644
index 0000000..c2f4ddf
--- /dev/null
+++ b/drivers/sysinfo/rcar3.c
@@ -0,0 +1,197 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2021 Marek Vasut <marek.vasut+renesas@gmail.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <i2c_eeprom.h>
+#include <log.h>
+#include <sysinfo.h>
+
+#define BOARD_CODE_MASK		0xF8
+#define BOARD_REV_MASK		0x07
+#define BOARD_CODE_SHIFT	0x03
+
+#define BOARD_SALVATOR_X	0x0
+#define BOARD_KRIEK		0x1
+#define BOARD_STARTER_KIT	0x2
+#define BOARD_SALVATOR_XS	0x4
+#define BOARD_EBISU		0x8
+#define BOARD_STARTER_KIT_PRE	0xB
+#define BOARD_EBISU_4D		0xD
+#define BOARD_DRAAK		0xE
+#define BOARD_EAGLE		0xF
+
+/**
+ * struct sysinfo_rcar_priv - sysinfo private data
+ * @boardname: board model and revision
+ * @val: board ID value from eeprom
+ */
+struct sysinfo_rcar_priv {
+	char	boardmodel[64];
+	u8	val;
+};
+
+static int sysinfo_rcar_detect(struct udevice *dev)
+{
+	struct sysinfo_rcar_priv *priv = dev_get_priv(dev);
+
+	return priv->val == 0xff;
+}
+
+static int sysinfo_rcar_get_str(struct udevice *dev, int id, size_t size, char *val)
+{
+	struct sysinfo_rcar_priv *priv = dev_get_priv(dev);
+
+	switch (id) {
+	case SYSINFO_ID_BOARD_MODEL:
+		strncpy(val, priv->boardmodel, size);
+		val[size - 1] = '\0';
+		return 0;
+	default:
+		return -EINVAL;
+	};
+}
+
+static const struct sysinfo_ops sysinfo_rcar_ops = {
+	.detect = sysinfo_rcar_detect,
+	.get_str = sysinfo_rcar_get_str,
+};
+
+static void sysinfo_rcar_parse(struct sysinfo_rcar_priv *priv)
+{
+	const u8 board_id = (priv->val & BOARD_CODE_MASK) >> BOARD_CODE_SHIFT;
+	const u8 board_rev = priv->val & BOARD_REV_MASK;
+	bool salvator_xs = false;
+	bool ebisu_4d = false;
+	char rev_major = '?';
+	char rev_minor = '?';
+
+	switch (board_id) {
+	case BOARD_SALVATOR_XS:
+		salvator_xs = true;
+		fallthrough;
+	case BOARD_SALVATOR_X:
+		if (!(board_rev & ~1)) { /* Only rev 0 and 1 is valid */
+			rev_major = '1';
+			rev_minor = '0' + (board_rev & BIT(0));
+		}
+		snprintf(priv->boardmodel, sizeof(priv->boardmodel),
+			 "Renesas Salvator-X%s board rev %c.%c",
+			 salvator_xs ? "S" : "", rev_major, rev_minor);
+		return;
+	case BOARD_STARTER_KIT:
+		if (!(board_rev & ~1)) { /* Only rev 0 and 1 is valid */
+			rev_major = (board_rev & BIT(0)) ? '3' : '1';
+			rev_minor = '0';
+		}
+		snprintf(priv->boardmodel, sizeof(priv->boardmodel),
+			 "Renesas Starter Kit board rev %c.%c",
+			 rev_major, rev_minor);
+		return;
+	case BOARD_STARTER_KIT_PRE:
+		if (!(board_rev & ~3)) { /* Only rev 0..3 is valid */
+			rev_major = (board_rev & BIT(1)) ? '2' : '1';
+			rev_minor = (board_rev == 3) ? '1' : '0';
+		}
+		snprintf(priv->boardmodel, sizeof(priv->boardmodel),
+			 "Renesas Starter Kit Premier board rev %c.%c",
+			 rev_major, rev_minor);
+		return;
+	case BOARD_EAGLE:
+		if (!board_rev) { /* Only rev 0 is valid */
+			rev_major = '1';
+			rev_minor = '0';
+		}
+		snprintf(priv->boardmodel, sizeof(priv->boardmodel),
+			 "Renesas Eagle board rev %c.%c",
+			 rev_major, rev_minor);
+		return;
+	case BOARD_EBISU_4D:
+		ebisu_4d = true;
+		fallthrough;
+	case BOARD_EBISU:
+		if (!board_rev) { /* Only rev 0 is valid */
+			rev_major = '1';
+			rev_minor = '0';
+		}
+		snprintf(priv->boardmodel, sizeof(priv->boardmodel),
+			 "Renesas Ebisu%s board rev %c.%c",
+			 ebisu_4d ? "-4D" : "", rev_major, rev_minor);
+		return;
+	case BOARD_DRAAK:
+		if (!board_rev) { /* Only rev 0 is valid */
+			rev_major = '1';
+			rev_minor = '0';
+		}
+		snprintf(priv->boardmodel, sizeof(priv->boardmodel),
+			 "Renesas Draak board rev %c.%c",
+			 rev_major, rev_minor);
+		return;
+	case BOARD_KRIEK:
+		if (!board_rev) { /* Only rev 0 is valid */
+			rev_major = '1';
+			rev_minor = '0';
+		}
+		snprintf(priv->boardmodel, sizeof(priv->boardmodel),
+			 "Renesas Kriek board rev %c.%c",
+			 rev_major, rev_minor);
+		return;
+	default:
+		snprintf(priv->boardmodel, sizeof(priv->boardmodel),
+			 "Renesas -Unknown- board rev ?.?");
+		priv->val = 0xff;
+		return;
+	}
+}
+
+static int sysinfo_rcar_probe(struct udevice *dev)
+{
+	struct sysinfo_rcar_priv *priv = dev_get_priv(dev);
+	struct ofnode_phandle_args phandle_args;
+	struct udevice *i2c_eeprom;
+	u32 offset;
+	int ret;
+
+	offset = dev_read_u32_default(dev, "offset", 0x70);
+
+	ret = dev_read_phandle_with_args(dev, "i2c-eeprom", NULL,
+					 0, 0, &phandle_args);
+	if (ret) {
+		debug("%s: i2c-eeprom backing device not specified\n",
+		      dev->name);
+		return ret;
+	}
+
+	ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, phandle_args.node,
+					  &i2c_eeprom);
+	if (ret) {
+		debug("%s: could not get backing device\n", dev->name);
+		return ret;
+	}
+
+	ret = i2c_eeprom_read(i2c_eeprom, offset, &priv->val, 1);
+	if (ret < 0) {
+		debug("%s: read failed\n", __func__);
+		return -EIO;
+	}
+
+	sysinfo_rcar_parse(priv);
+
+	return 0;
+}
+
+static const struct udevice_id sysinfo_rcar_ids[] = {
+	{ .compatible = "renesas,rcar-sysinfo" },
+	{ /* sentinel */ }
+};
+
+U_BOOT_DRIVER(sysinfo_rcar) = {
+	.name           = "sysinfo_rcar",
+	.id             = UCLASS_SYSINFO,
+	.of_match       = sysinfo_rcar_ids,
+	.ops		= &sysinfo_rcar_ops,
+	.priv_auto	= sizeof(struct sysinfo_rcar_priv),
+	.probe          = sysinfo_rcar_probe,
+};