From: Biju Das <biju.das.jz@bp.renesas.com>
Add SoC identification for the RZ/G3L SoC using the System Controller
(SYSC) block.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
v2->v3:
* No change.
v1->v2:
* No change.
---
drivers/soc/renesas/Kconfig | 12 ++++
drivers/soc/renesas/Makefile | 1 +
drivers/soc/renesas/r9a08g046-sysc.c | 91 ++++++++++++++++++++++++++++
drivers/soc/renesas/rz-sysc.c | 3 +
drivers/soc/renesas/rz-sysc.h | 1 +
5 files changed, 108 insertions(+)
create mode 100644 drivers/soc/renesas/r9a08g046-sysc.c
diff --git a/drivers/soc/renesas/Kconfig b/drivers/soc/renesas/Kconfig
index 1e50dc7c31cd..26bed0fdceb0 100644
--- a/drivers/soc/renesas/Kconfig
+++ b/drivers/soc/renesas/Kconfig
@@ -390,6 +390,14 @@ config ARCH_R9A08G045
help
This enables support for the Renesas RZ/G3S SoC variants.
+config ARCH_R9A08G046
+ bool "ARM64 Platform support for R9A08G046 (RZ/G3L)"
+ default y if ARCH_RENESAS
+ select ARCH_RZG2L
+ select SYSC_R9A08G046
+ help
+ This enables support for the Renesas RZ/G3L SoC variants.
+
config ARCH_R9A09G011
bool "ARM64 Platform support for R9A09G011 (RZ/V2M)"
default y if ARCH_RENESAS
@@ -474,6 +482,10 @@ config SYSC_R9A08G045
bool "Renesas System controller support for R9A08G045 (RZ/G3S)" if COMPILE_TEST
select SYSC_RZ
+config SYSC_R9A08G046
+ bool "Renesas System controller support for R9A08G046 (RZ/G3L)" if COMPILE_TEST
+ select SYSC_RZ
+
config SYS_R9A09G047
bool "Renesas System controller support for R9A09G047 (RZ/G3E)" if COMPILE_TEST
select SYSC_RZ
diff --git a/drivers/soc/renesas/Makefile b/drivers/soc/renesas/Makefile
index 33d44d964d61..655dbcb08747 100644
--- a/drivers/soc/renesas/Makefile
+++ b/drivers/soc/renesas/Makefile
@@ -7,6 +7,7 @@ ifdef CONFIG_SMP
obj-$(CONFIG_ARCH_R9A06G032) += r9a06g032-smp.o
endif
obj-$(CONFIG_SYSC_R9A08G045) += r9a08g045-sysc.o
+obj-$(CONFIG_SYSC_R9A08G046) += r9a08g046-sysc.o
obj-$(CONFIG_SYS_R9A09G047) += r9a09g047-sys.o
obj-$(CONFIG_SYS_R9A09G056) += r9a09g056-sys.o
obj-$(CONFIG_SYS_R9A09G057) += r9a09g057-sys.o
diff --git a/drivers/soc/renesas/r9a08g046-sysc.c b/drivers/soc/renesas/r9a08g046-sysc.c
new file mode 100644
index 000000000000..fd98df196d0a
--- /dev/null
+++ b/drivers/soc/renesas/r9a08g046-sysc.c
@@ -0,0 +1,91 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * RZ/G3L System controller (SYSC) driver
+ *
+ * Copyright (C) 2026 Renesas Electronics Corp.
+ */
+
+#include <linux/bits.h>
+#include <linux/device.h>
+#include <linux/init.h>
+
+#include "rz-sysc.h"
+
+#define SYS_XSPI_MAP_STAADD_CS0 0x348
+#define SYS_XSPI_MAP_ENDADD_CS0 0x34c
+#define SYS_XSPI_MAP_STAADD_CS1 0x350
+#define SYS_XSPI_MAP_ENDADD_CS1 0x354
+#define SYS_GETH0_CFG 0x380
+#define SYS_GETH1_CFG 0x390
+#define SYS_PCIE_CFG 0x3a0
+#define SYS_PCIE_MON 0x3a4
+#define SYS_PCIE_PHY 0x3b4
+#define SYS_I2C0_CFG 0x400
+#define SYS_I2C1_CFG 0x410
+#define SYS_I2C2_CFG 0x420
+#define SYS_I2C3_CFG 0x430
+#define SYS_I3C_CFG 0x440
+#define SYS_PWRRDY_N 0xd70
+#define SYS_IPCONT_SEL_CLONECH 0xe2c
+
+static bool rzg3l_regmap_readable_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case SYS_XSPI_MAP_STAADD_CS0:
+ case SYS_XSPI_MAP_ENDADD_CS0:
+ case SYS_XSPI_MAP_STAADD_CS1:
+ case SYS_XSPI_MAP_ENDADD_CS1:
+ case SYS_GETH0_CFG:
+ case SYS_GETH1_CFG:
+ case SYS_PCIE_CFG:
+ case SYS_PCIE_MON:
+ case SYS_PCIE_PHY:
+ case SYS_I2C0_CFG:
+ case SYS_I2C1_CFG:
+ case SYS_I2C2_CFG:
+ case SYS_I2C3_CFG:
+ case SYS_I3C_CFG:
+ case SYS_PWRRDY_N:
+ case SYS_IPCONT_SEL_CLONECH:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool rzg3l_regmap_writeable_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case SYS_XSPI_MAP_STAADD_CS0:
+ case SYS_XSPI_MAP_ENDADD_CS0:
+ case SYS_XSPI_MAP_STAADD_CS1:
+ case SYS_XSPI_MAP_ENDADD_CS1:
+ case SYS_PCIE_CFG:
+ case SYS_PCIE_PHY:
+ case SYS_I2C0_CFG:
+ case SYS_I2C1_CFG:
+ case SYS_I2C2_CFG:
+ case SYS_I2C3_CFG:
+ case SYS_I3C_CFG:
+ case SYS_PWRRDY_N:
+ case SYS_IPCONT_SEL_CLONECH:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct rz_sysc_soc_id_init_data rzg3l_sysc_soc_id_init_data __initconst = {
+ .family = "RZ/G3L",
+ .id = 0x87d9447,
+ .devid_offset = 0xa04,
+ .revision_mask = GENMASK(31, 28),
+ .specific_id_mask = GENMASK(27, 0),
+};
+
+const struct rz_sysc_init_data rzg3l_sysc_init_data __initconst = {
+ .soc_id_init_data = &rzg3l_sysc_soc_id_init_data,
+ .readable_reg = rzg3l_regmap_readable_reg,
+ .writeable_reg = rzg3l_regmap_writeable_reg,
+ .max_register = 0xe2c,
+};
diff --git a/drivers/soc/renesas/rz-sysc.c b/drivers/soc/renesas/rz-sysc.c
index ae727d9c8cc5..0d3b7f52f846 100644
--- a/drivers/soc/renesas/rz-sysc.c
+++ b/drivers/soc/renesas/rz-sysc.c
@@ -88,6 +88,9 @@ static const struct of_device_id rz_sysc_match[] = {
#ifdef CONFIG_SYSC_R9A08G045
{ .compatible = "renesas,r9a08g045-sysc", .data = &rzg3s_sysc_init_data },
#endif
+#ifdef CONFIG_SYSC_R9A08G046
+ { .compatible = "renesas,r9a08g046-sysc", .data = &rzg3l_sysc_init_data },
+#endif
#ifdef CONFIG_SYS_R9A09G047
{ .compatible = "renesas,r9a09g047-sys", .data = &rzg3e_sys_init_data },
#endif
diff --git a/drivers/soc/renesas/rz-sysc.h b/drivers/soc/renesas/rz-sysc.h
index 88929bf21cb1..921ee0d26c47 100644
--- a/drivers/soc/renesas/rz-sysc.h
+++ b/drivers/soc/renesas/rz-sysc.h
@@ -46,6 +46,7 @@ struct rz_sysc_init_data {
};
extern const struct rz_sysc_init_data rzg3e_sys_init_data;
+extern const struct rz_sysc_init_data rzg3l_sysc_init_data;
extern const struct rz_sysc_init_data rzg3s_sysc_init_data;
extern const struct rz_sysc_init_data rzv2h_sys_init_data;
extern const struct rz_sysc_init_data rzv2n_sys_init_data;
--
2.43.0