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authorRafał Miłecki <rafal@milecki.pl>2021-11-09 12:07:59 +0100
committerRafał Miłecki <rafal@milecki.pl>2021-11-09 12:44:23 +0100
commit9565bd9bd61f026effce7ebfe17d413d1adb032f (patch)
tree1ce62a5f61188de65d6b6d34f97940e2b88407ee /target/linux/bcm4908/patches-5.10
parent9a18bbec1f63468182e4d6216b595ff73f08b919 (diff)
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bcm4908: add watchdog support
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Diffstat (limited to 'target/linux/bcm4908/patches-5.10')
-rw-r--r--target/linux/bcm4908/patches-5.10/301-arm64-dts-broadcom-bcm4908-add-TWD-block.patch50
-rw-r--r--target/linux/bcm4908/patches-5.10/800-watchdog-bcm7038_wdt-allow-building-on-ARCH_BCM4908.patch25
2 files changed, 75 insertions, 0 deletions
diff --git a/target/linux/bcm4908/patches-5.10/301-arm64-dts-broadcom-bcm4908-add-TWD-block.patch b/target/linux/bcm4908/patches-5.10/301-arm64-dts-broadcom-bcm4908-add-TWD-block.patch
new file mode 100644
index 0000000000..026ce3b9fc
--- /dev/null
+++ b/target/linux/bcm4908/patches-5.10/301-arm64-dts-broadcom-bcm4908-add-TWD-block.patch
@@ -0,0 +1,50 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Tue, 9 Nov 2021 11:39:42 +0100
+Subject: [PATCH] arm64: dts: broadcom: bcm4908: add TWD block
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+BCM4908 contains TWD block that provides few functions:
+1. Timers
+2. Wathchdog
+3. Software reset
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+---
+ .../boot/dts/broadcom/bcm4908/bcm4908.dtsi | 17 +++++++++++++----
+ 1 file changed, 13 insertions(+), 4 deletions(-)
+
+--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi
++++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi
+@@ -273,9 +273,18 @@
+ #size-cells = <1>;
+ ranges = <0x00 0x00 0xff800000 0x3000>;
+
+- timer: timer@400 {
+- compatible = "brcm,bcm6328-timer", "syscon";
+- reg = <0x400 0x3c>;
++ twd: timer-mfd@400 {
++ compatible = "brcm,bcm4908-twd", "brcm,twd", "simple-mfd", "syscon";
++ reg = <0x400 0x4c>;
++ ranges = <0x0 0x400 0x4c>;
++
++ #address-cells = <1>;
++ #size-cells = <1>;
++
++ watchdog@28 {
++ compatible = "brcm,bcm7038-wdt";
++ reg = <0x28 0x8>;
++ };
+ };
+
+ gpio0: gpio-controller@500 {
+@@ -329,7 +338,7 @@
+
+ reboot {
+ compatible = "syscon-reboot";
+- regmap = <&timer>;
++ regmap = <&twd>;
+ offset = <0x34>;
+ mask = <1>;
+ };
diff --git a/target/linux/bcm4908/patches-5.10/800-watchdog-bcm7038_wdt-allow-building-on-ARCH_BCM4908.patch b/target/linux/bcm4908/patches-5.10/800-watchdog-bcm7038_wdt-allow-building-on-ARCH_BCM4908.patch
new file mode 100644
index 0000000000..f4cf75037e
--- /dev/null
+++ b/target/linux/bcm4908/patches-5.10/800-watchdog-bcm7038_wdt-allow-building-on-ARCH_BCM4908.patch
@@ -0,0 +1,25 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Tue, 9 Nov 2021 11:34:28 +0100
+Subject: [PATCH] watchdog: bcm7038_wdt: allow building on ARCH_BCM4908
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The same hardware block is present on BCM4908 SoCs family.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+---
+ drivers/watchdog/Kconfig | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/watchdog/Kconfig
++++ b/drivers/watchdog/Kconfig
+@@ -1800,7 +1800,7 @@ config BCM7038_WDT
+ tristate "BCM7038 Watchdog"
+ select WATCHDOG_CORE
+ depends on HAS_IOMEM
+- depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
++ depends on ARCH_BCM4908 || ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
+ help
+ Watchdog driver for the built-in hardware in Broadcom 7038 and
+ later SoCs used in set-top boxes. BCM7038 was made public