From 26fa063c6e6c12ff111c9ccadd41b84e3f66ad1d Mon Sep 17 00:00:00 2001 From: Jan Kiszka Date: Sat, 18 Sep 2021 08:17:56 +0200 Subject: [PATCH] iot2050: Enable watchdog support, but do not auto-start it 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 --- 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. -- 2.39.5