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| author | Veeraiyan Chidambaram <veeraiyan.chidambaram@in.bosch.com> | 2018-04-13 17:19:24 +0300 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2018-04-16 11:22:40 +0300 |
| commit | fdac6a90d2d151abdbb7e5ec14bb9ab64e2931ec (patch) | |
| tree | 2d1d3324a46d138c0d628d5c940894a13a6b5b09 /drivers/watchdog/aspeed_wdt.c | |
| parent | e30d69df78fb2667dc58e906cabd0f70ed0af95d (diff) | |
| download | linux-fdac6a90d2d151abdbb7e5ec14bb9ab64e2931ec.tar.xz | |
watchdog: renesas-wdt: Add support for WDIOF_CARDRESET
This patch adds the WDIOF_CARDRESET support for the Renesas platform
watchdog, to know if the board reboot is due to a watchdog reset.
This is done via the WOVF bit (bit 4) of the RWTCSRA register, which
indicates if RWTCNT overflowed, triggering the reset in last boot.
Signed-off-by: Veeraiyan Chidambaram <veeraiyan.chidambaram@in.bosch.com>
[takeshi.kihara.df: changed to read the RWTCSRA register while clock is
enabled]
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog/aspeed_wdt.c')
0 files changed, 0 insertions, 0 deletions