diff options
| author | Sander Vanheule <sander@svanheule.net> | 2021-11-14 19:45:33 +0100 |
|---|---|---|
| committer | Stijn Tintel <stijn@linux-ipv6.be> | 2021-11-24 21:43:42 +0200 |
| commit | 927570f0a3d0ea82d5b6a3bc3b175ace3ad45e66 (patch) | |
| tree | fddbeca23dab6550190bcb132b902fe3c22b9d05 | |
| parent | b8fc5eecdc5d33cf261986436597b5482ab856da (diff) | |
| download | upstream-927570f0a3d0ea82d5b6a3bc3b175ace3ad45e66.tar.gz upstream-927570f0a3d0ea82d5b6a3bc3b175ace3ad45e66.tar.bz2 upstream-927570f0a3d0ea82d5b6a3bc3b175ace3ad45e66.zip | |
realtek: Add and enable watchdog node
Add and enable the Realtek Otto WDT peripheral found on these SoCs.
Default all devices to use standard (cold) reboot and "soc" resets.
Devices that require the PLL value fixup before restarting, should pick
the "cpu" or "software" reset mode. These devices also need to provide a
custom reboot mode, by adding the reboot argument to the kernel command
line:
WDT reset mode | kernel reboot mode
----------------+---------------------------------------
soc | reboot=cold (default if not specified)
cpu | reboot=warm
software | reboot=software
Preferrably, these devices should use an alternative restart method like
gpio-restart to provide reliable restarts.
Note that watchdog restarts are not yet exposed, since the
_machine_restart override is still present.
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Tested-by: Stijn Segers <foss@volatilesystems.org>
Tested-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: Stijn Tintel <stijn@linux-ipv6.be>
| -rw-r--r-- | target/linux/realtek/config-5.10 | 2 | ||||
| -rw-r--r-- | target/linux/realtek/dts-5.10/rtl838x.dtsi | 14 | ||||
| -rw-r--r-- | target/linux/realtek/dts-5.10/rtl930x.dtsi | 18 |
3 files changed, 33 insertions, 1 deletions
diff --git a/target/linux/realtek/config-5.10 b/target/linux/realtek/config-5.10 index 2c5ab1706a..00f2a6af13 100644 --- a/target/linux/realtek/config-5.10 +++ b/target/linux/realtek/config-5.10 @@ -160,6 +160,7 @@ CONFIG_PINCTRL=y CONFIG_POWER_RESET=y CONFIG_POWER_RESET_SYSCON=y CONFIG_RATIONAL=y +CONFIG_REALTEK_OTTO_WDT=y CONFIG_REALTEK_PHY=y CONFIG_REALTEK_SOC_PHY=y CONFIG_REGMAP=y @@ -190,5 +191,6 @@ CONFIG_TIMER_PROBE=y CONFIG_TINY_SRCU=y CONFIG_USE_GENERIC_EARLY_PRINTK_8250=y CONFIG_USE_OF=y +CONFIG_WATCHDOG_CORE=y CONFIG_ZLIB_DEFLATE=y CONFIG_ZLIB_INFLATE=y diff --git a/target/linux/realtek/dts-5.10/rtl838x.dtsi b/target/linux/realtek/dts-5.10/rtl838x.dtsi index dc60e12bad..f356f8fcde 100644 --- a/target/linux/realtek/dts-5.10/rtl838x.dtsi +++ b/target/linux/realtek/dts-5.10/rtl838x.dtsi @@ -153,6 +153,20 @@ status = "disabled"; }; + watchdog0: watchdog@3150 { + compatible = "realtek,rtl8380-wdt"; + reg = <0x3150 0xc>; + + realtek,reset-mode = "soc"; + + clocks = <&lx_clk>; + timeout-sec = <30>; + + interrupt-parent = <&intc>; + interrupt-names = "phase1", "phase2"; + interrupts = <19>, <18>; + }; + gpio0: gpio-controller@3500 { compatible = "realtek,rtl8380-gpio", "realtek,otto-gpio"; reg = <0x3500 0x20>; diff --git a/target/linux/realtek/dts-5.10/rtl930x.dtsi b/target/linux/realtek/dts-5.10/rtl930x.dtsi index 9e9501d51a..a4c9757505 100644 --- a/target/linux/realtek/dts-5.10/rtl930x.dtsi +++ b/target/linux/realtek/dts-5.10/rtl930x.dtsi @@ -109,7 +109,9 @@ <10 &cpuintc 1>, /* TC3 */ <9 &cpuintc 1>, /* TC2 */ <8 &cpuintc 1>, /* TC1 */ - <7 &cpuintc 5>; /* TC0 */ + <7 &cpuintc 5>, /* TC0 */ + <6 &cpuintc 5>, /* WDT_IP2 */ + <5 &cpuintc 4>; /* WDT_IP1 */ }; timer: timer@3200 { @@ -161,6 +163,20 @@ status = "disabled"; }; + watchdog0: watchdog@3260 { + compatible = "realtek,rtl9300-wdt"; + reg = <0x3260 0xc>; + + realtek,reset-mode = "soc"; + + clocks = <&lx_clk>; + timeout-sec = <30>; + + interrupt-parent = <&intc>; + interrupt-names = "phase1", "phase2"; + interrupts = <5>, <6>; + }; + gpio0: gpio-controller@3500 { compatible = "realtek,rtl8380-gpio", "realtek,otto-gpio"; reg = <0x3500 0x20>; |