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From: Jan Kiszka <jan.kiszka@siemens.com>
To: U-Boot Mailing List <u-boot@lists.denx.de>
Cc: Le Jin <le.jin@siemens.com>,
	Bao Cheng Su <baocheng.su@siemens.com>,
	Nian Gao <nian.gao@siemens.com>,
	Chao Zeng <chao.zeng@siemens.com>,
	Lokesh Vutla <lokeshvutla@ti.com>
Subject: [PATCH v8 5/5] iot2050: Enable watchdog support, but do not auto-start it
Date: Sat, 18 Sep 2021 08:17:56 +0200	[thread overview]
Message-ID: <03c79e3cdb073c7b2a4607d674a8e538705f6f35.1631945876.git.jan.kiszka@siemens.com> (raw)
In-Reply-To: <cover.1631945876.git.jan.kiszka@siemens.com>

From: Jan Kiszka <jan.kiszka@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.kiszka@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


  parent reply	other threads:[~2021-09-18  6:19 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-18  6:17 [PATCH v8 0/5] Add SIMATIC IOT2050 board support Jan Kiszka
2021-09-18  6:17 ` [PATCH v8 1/5] arm: dts: Add IOT2050 device tree files Jan Kiszka
2021-10-03 23:34   ` Tom Rini
2021-09-18  6:17 ` [PATCH v8 2/5] board: siemens: Add support for SIMATIC IOT2050 devices Jan Kiszka
2021-10-03 23:34   ` Tom Rini
2021-10-04 15:54     ` Jan Kiszka
2021-10-04 16:02       ` Tom Rini
2021-10-04 16:35         ` Jan Kiszka
2021-09-18  6:17 ` [PATCH v8 3/5] arm64: dts: ti: k3-am65-mcu: Add RTI watchdog entry Jan Kiszka
2021-10-03 18:40   ` Tom Rini
2021-10-04  7:44     ` Jan Kiszka
2021-09-18  6:17 ` [PATCH v8 4/5] watchdog: rti_wdt: Add support for loading firmware Jan Kiszka
2021-10-03 23:34   ` Tom Rini
2021-09-18  6:17 ` Jan Kiszka [this message]
2021-10-03 23:34   ` [PATCH v8 5/5] iot2050: Enable watchdog support, but do not auto-start it Tom Rini

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