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authorMarek Vasut2020-04-29 15:04:24 +0200
committerStefano Babic2020-05-01 13:46:22 +0200
commit77cfd0d2b6cd9b318d2b5f4c91e2611bbf1a656f (patch)
treec93383b98628937bc84b3361d1d4c7e89a7777ba
parentc5635a032a4bc63148c3ecd09c4cc49632b4fa4a (diff)
ARM: imx8m: Fix reset in SPL on NXP iMX8MM EVK
Board files should not re-implement do_reset() to work around this function not being defined in for specific configurations. Rather, the fix is to compile in drivers which implement this properly. This patch enables sysreset and watchdog drivers in SPL and ties them together to implement the same as the do_reset() hack in the board file, except correctly in the DM/DT framework. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: Flavio Suligoi <f.suligoi@asem.it> Cc: Harald Seiler <hws@denx.de> Cc: Igor Opaniuk <igor.opaniuk@toradex.com> Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com> Cc: Oleksandr Suvorov <oleksandr.suvorov@toradex.com> Cc: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
-rw-r--r--arch/arm/dts/imx8mm-evk-u-boot.dtsi12
-rw-r--r--configs/imx8mm_evk_defconfig5
2 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/dts/imx8mm-evk-u-boot.dtsi b/arch/arm/dts/imx8mm-evk-u-boot.dtsi
index 3502602fbb8..b5c12105a9d 100644
--- a/arch/arm/dts/imx8mm-evk-u-boot.dtsi
+++ b/arch/arm/dts/imx8mm-evk-u-boot.dtsi
@@ -3,6 +3,14 @@
* Copyright 2019 NXP
*/
+/ {
+ wdt-reboot {
+ compatible = "wdt-reboot";
+ wdt = <&wdog1>;
+ u-boot,dm-spl;
+ };
+};
+
&{/soc@0} {
u-boot,dm-pre-reloc;
u-boot,dm-spl;
@@ -117,3 +125,7 @@
&fec1 {
phy-reset-gpios = <&gpio4 22 GPIO_ACTIVE_LOW>;
};
+
+&wdog1 {
+ u-boot,dm-spl;
+};
diff --git a/configs/imx8mm_evk_defconfig b/configs/imx8mm_evk_defconfig
index 1195d889ca6..9a72f46f276 100644
--- a/configs/imx8mm_evk_defconfig
+++ b/configs/imx8mm_evk_defconfig
@@ -28,6 +28,7 @@ CONFIG_SPL_BOARD_INIT=y
CONFIG_SPL_SEPARATE_BSS=y
CONFIG_SPL_I2C_SUPPORT=y
CONFIG_SPL_POWER_SUPPORT=y
+CONFIG_SPL_WATCHDOG_SUPPORT=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="u-boot=> "
# CONFIG_CMD_EXPORTENV is not set
@@ -80,5 +81,9 @@ CONFIG_DM_REGULATOR_FIXED=y
CONFIG_DM_REGULATOR_GPIO=y
CONFIG_MXC_UART=y
CONFIG_SYSRESET=y
+CONFIG_SPL_SYSRESET=y
CONFIG_SYSRESET_PSCI=y
+CONFIG_SYSRESET_WATCHDOG=y
CONFIG_DM_THERMAL=y
+# CONFIG_WATCHDOG is not set
+CONFIG_IMX_WATCHDOG=y