qoriq: enable Book-E Watchdog Timer

Enable PowerPC Book-E Watchdog Timer support. Having this enabled
in-kernel will result in procd starting it during boot.

This effectively solves the problem of the WDT in the Winbond W83793 chip
potentially resetting the system during sysupgrade, which could result
in an unbootable device. While the driver is modular, resulting in procd
not starting the WDT during boot (because that happens before kmod
load), the WDT handover during sysupgrade results in the WDT being
started. This normally shouldn't be a problem, but the W83793 WDT does
not like procd's defaults, nor the handover happening during sysupgrade.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
(cherry picked from commit 04071cb111f290417074de130d34ae5895fd3a7b)

diff --git a/target/linux/qoriq/config-5.10 b/target/linux/qoriq/config-5.10
index 6bdcd63b14dc4bc4a9aba9afa2d6ce61d07a58b6..67a54fcc494a5a9ee12083c50d05cd29d04c4eff 100644 (file)
--- a/target/linux/qoriq/config-5.10
+++ b/target/linux/qoriq/config-5.10
@@ -23,6 +23,7 @@ CONFIG_BLK_MQ_PCI=y
 CONFIG_BLK_PM=y
 CONFIG_BLK_SCSI_REQUEST=y
 CONFIG_BOOKE=y
+CONFIG_BOOKE_WDT=y
 CONFIG_CLKDEV_LOOKUP=y
 CONFIG_CLK_QORIQ=y
 CONFIG_CLONE_BACKWARDS=y
@@ -383,6 +384,7 @@ CONFIG_VIRT_CPU_ACCOUNTING_NATIVE=y
 CONFIG_VT=y
 CONFIG_VT_CONSOLE=y
 # CONFIG_VT_HW_CONSOLE_BINDING is not set
+CONFIG_WATCHDOG_CORE=y
 # CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
 CONFIG_XPS=y
 CONFIG_ZLIB_DEFLATE=y