[openwrt/openwrt] qoriq: enable Book-E Watchdog Timer

LEDE Commits lede-commits at lists.infradead.org
Fri Jul 1 06:43:06 PDT 2022


stintel pushed a commit to openwrt/openwrt.git, branch openwrt-22.03:
https://git.openwrt.org/7d6b8f5bdf3106010275ec7a9f0702c6af410c36

commit 7d6b8f5bdf3106010275ec7a9f0702c6af410c36
Author: Stijn Tintel <stijn at linux-ipv6.be>
AuthorDate: Fri Jul 1 16:17:37 2022 +0300

    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 at linux-ipv6.be>
    (cherry picked from commit 04071cb111f290417074de130d34ae5895fd3a7b)
---
 target/linux/qoriq/config-5.10 | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/target/linux/qoriq/config-5.10 b/target/linux/qoriq/config-5.10
index 6bdcd63b14..67a54fcc49 100644
--- 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




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