From: Jan Kiszka <jan.kis...@siemens.com>
This allows to use the watchdog in custom scripts but does not enforce
that the OS has to support it as well.
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
---
arch/arm/dts/k3-am65-iot2050-boot-image.dtsi | 25 ++++++++++++++++++++
configs/iot2050_defconfig | 6 +++++
tools/binman/missing-blob-help | 5 ++++
3 files changed, 36 insertions(+)
diff --git a/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi
b/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi
index 1e02cece6c..69479d7b18 100644
--- a/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi
+++ b/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi
@@ -80,6 +80,19 @@
filename =
"arch/arm/dts/k3-am6548-iot2050-advanced-pg2.dtb";
};
};
+
+#ifdef CONFIG_WDT_K3_RTI_FW_FILE
+ k3-rti-wdt-firmware {
+ type = "firmware";
+ load = <0x82000000>;
+ arch = "arm";
+ compression = "none";
+ blob-ext {
+ filename =
CONFIG_WDT_K3_RTI_FW_FILE;
+ missing-msg =
"k3-rti-wdt-firmware";
+ };
+ };
+#endif
};
configurations {
@@ -89,24 +102,36 @@
description = "iot2050-basic";
firmware = "u-boot";
fdt = "fdt-iot2050-basic";
+#ifdef CONFIG_WDT_K3_RTI_FW_FILE
+ loadables = "k3-rti-wdt-firmware";
+#endif
};
conf-iot2050-basic-pg2 {
description = "iot2050-basic-pg2";
firmware = "u-boot";
fdt = "fdt-iot2050-basic-pg2";
+#ifdef CONFIG_WDT_K3_RTI_FW_FILE
+ loadables = "k3-rti-wdt-firmware";
+#endif
};
conf-iot2050-advanced {
description = "iot2050-advanced";
firmware = "u-boot";
fdt = "fdt-iot2050-advanced";
+#ifdef CONFIG_WDT_K3_RTI_FW_FILE
+ loadables = "k3-rti-wdt-firmware";
+#endif
};
conf-iot2050-advanced-pg2 {
description = "iot2050-advanced-pg2";
firmware = "u-boot";
fdt = "fdt-iot2050-advanced-pg2";
+#ifdef CONFIG_WDT_K3_RTI_FW_FILE
+ loadables = "k3-rti-wdt-firmware";
+#endif
};
};
};
diff --git a/configs/iot2050_defconfig b/configs/iot2050_defconfig
index b5c5fd7ac1..72ee5c83f1 100644
--- a/configs/iot2050_defconfig
+++ b/configs/iot2050_defconfig
@@ -50,6 +50,7 @@ CONFIG_CMD_MMC=y
CONFIG_CMD_PCI=y
CONFIG_CMD_REMOTEPROC=y
CONFIG_CMD_USB=y
+CONFIG_CMD_WDT=y
# CONFIG_CMD_SETEXPR is not set
CONFIG_CMD_TIME=y
# CONFIG_ISO_PARTITION is not set
@@ -127,4 +128,9 @@ CONFIG_USB_XHCI_DWC3=y
CONFIG_USB_DWC3=y
CONFIG_USB_DWC3_GENERIC=y
CONFIG_USB_KEYBOARD=y
+# CONFIG_WATCHDOG is not set
+# CONFIG_WATCHDOG_AUTOSTART is not set
+CONFIG_WDT=y
+CONFIG_WDT_K3_RTI=y
+CONFIG_WDT_K3_RTI_LOAD_FW=y
CONFIG_OF_LIBFDT_OVERLAY=y
diff --git a/tools/binman/missing-blob-help b/tools/binman/missing-blob-help
index f7bc80ea83..dc2d9c9811 100644
--- a/tools/binman/missing-blob-help
+++ b/tools/binman/missing-blob-help
@@ -17,3 +17,8 @@ board/sunxi/README.sunxi64
scp-sunxi:
SCP firmware is required for system suspend, but is otherwise optional.
Please read the section on SCP firmware in board/sunxi/README.sunxi64
+
+k3-rti-wdt-firmware:
+If CONFIG_WDT_K3_RTI_LOAD_FW is enabled, a firmware image is needed for
+the R5F core(s) to trigger the system reset. One possible source is
+https://github.com/siemens/k3-rti-wdt.
--
2.31.1
