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Add support Watchdog driver for Renesas RZ/T2M, RZ/N2L, RZ/A3UL #96375

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Add support Watchdog driver for Renesas RZ/T2M, RZ/N2L, RZ/A3UL #96375

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72ae43e
manifest: Update commit id for hal_renesas
le-quang168 Sep 22, 2025
ed29396
drivers: watchdog: Initial support for RZ/A3UL, N2L, T2M
le-quang168 Sep 19, 2025
f9ea1ac
dts: renesas: Add Watchdog support for RZ/A3UL, N2L, T2M
le-quang168 Sep 19, 2025
acdb6a2
boards: renesas: Add Watchdog support for RZ/A3UL, N2L, T2M
le-quang168 Sep 19, 2025
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8 changes: 8 additions & 0 deletions boards/renesas/rza3ul_smarc/rza3ul_smarc.dts
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,10 @@
zephyr,code-partition = &slot0_partition;
};

aliases {
watchdog0 = &wdt0;
};

ddr: memory@40200000 {
compatible = "zephyr,memory-region", "mmio-sram";
reg = <0x40200000 (DT_SIZE_M(1024) - 0x200000)>;
Expand Down Expand Up @@ -76,3 +80,7 @@
pinctrl-names = "default";
status = "okay";
};

&wdt0 {
status = "okay";
};
1 change: 1 addition & 0 deletions boards/renesas/rza3ul_smarc/rza3ul_smarc.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ supported:
- adc
- i2c
- counter
- watchdog
testing:
ignore_tags:
- bluetooth
5 changes: 5 additions & 0 deletions boards/renesas/rzn2l_rsk/rzn2l_rsk.dts
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@
led0 = &led0;
led1 = &led1;
sw0 = &sw1;
watchdog0 = &wdt0;
};

leds {
Expand Down Expand Up @@ -123,3 +124,7 @@
pinctrl-names = "default";
status = "okay";
};

&wdt0 {
status = "okay";
};
1 change: 1 addition & 0 deletions boards/renesas/rzn2l_rsk/rzn2l_rsk.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -11,4 +11,5 @@ supported:
- adc
- i2c
- counter
- watchdog
vendor: renesas
5 changes: 5 additions & 0 deletions boards/renesas/rzt2m_rsk/rzt2m_rsk_r9a07g075m24gbg_cr520.dts
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@
aliases {
led0 = &led0;
sw0 = &sw1;
watchdog0 = &wdt0;
};

leds {
Expand Down Expand Up @@ -120,3 +121,7 @@
&adc1 {
status = "okay";
};

&wdt0 {
status = "okay";
};
1 change: 1 addition & 0 deletions boards/renesas/rzt2m_rsk/rzt2m_rsk_r9a07g075m24gbg_cr520.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -16,4 +16,5 @@ supported:
- adc
- i2c
- counter
- watchdog
vendor: renesas
1 change: 1 addition & 0 deletions drivers/watchdog/CMakeLists.txt
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Expand Up @@ -63,6 +63,7 @@ zephyr_library_sources_ifdef(CONFIG_WDT_ANDES_ATCWDT200 wdt_andes_atcwdt200.c)
zephyr_library_sources_ifdef(CONFIG_WDT_NXP_FS26 wdt_nxp_fs26.c)
zephyr_library_sources_ifdef(CONFIG_WDT_SHELL wdt_shell.c)
zephyr_library_sources_ifdef(CONFIG_WDT_RENESAS_RA wdt_renesas_ra.c)
zephyr_library_sources_ifdef(CONFIG_WDT_RENESAS_RZ wdt_renesas_rz.c)
zephyr_library_sources_ifdef(CONFIG_WDT_NXP_EWM wdt_nxp_ewm.c)

zephyr_library_sources_ifdef(CONFIG_WDT_TI_RTI wdt_ti_rti.c)
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2 changes: 2 additions & 0 deletions drivers/watchdog/Kconfig
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Expand Up @@ -153,6 +153,8 @@ source "drivers/watchdog/Kconfig.rts5912"

source "drivers/watchdog/Kconfig.renesas_ra"

source "drivers/watchdog/Kconfig.renesas_rz"

source "drivers/watchdog/Kconfig.wch"

source "drivers/watchdog/Kconfig.nxp_ewm"
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22 changes: 22 additions & 0 deletions drivers/watchdog/Kconfig.renesas_rz
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@@ -0,0 +1,22 @@
# Copyright (c) 2025 Renesas Electronics Corporation
# SPDX-License-Identifier: Apache-2.0

config WDT_RENESAS_RZ
bool "Watchdog Driver for Renesas RZ"
default y
depends on DT_HAS_RENESAS_RZ_WDT_ENABLED
select HAS_WDT_DISABLE_AT_BOOT
select USE_RZ_FSP_WDT
help
Enable watchdog driver for Renesas RZ

if WDT_RENESAS_RZ

config WDT_RENESAS_RZ_USE_ICU
bool "Watchdog generates interrupt requests signal"
default y
depends on SOC_SERIES_RZT2M || SOC_SERIES_RZN2L
help
Watchdog generates interrupt requests signal

endif # WDT_RENESAS_RZ
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