From: zumeng.chen@windriver.com (Zumeng Chen) Date: Wed, 11 Jul 2012 16:10:12 +0800 Subject: [PATCH v2 RESEND 0/3] Watchdog: OMAP: bootstatus fix for omap3 and changes for the current watchdog framework In-Reply-To: <4FFBACE4.80901@windriver.com> References: <1341819328-3514-1-git-send-email-zumeng.chen@windriver.com> <4FFBACE4.80901@windriver.com> Message-ID: <4FFD34E4.7060505@windriver.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The same case works well on am335xevm but with a new patch in mach-omap2/prcm.c I'll send it later. root at ti-omap3:~# uname -a Linux ti-omap3 3.4.3-00635-g82d1d26-dirty #32 Wed Jul 11 16:02:12 CST 2012 armv7l GNU/Linux root at ti-omap3:~# dmesg|grep WDT [ 1.921173] omap_wdt: OMAP WDTimer Rev 0x01: Initial timeout 0sec status= 0x1 root at ti-omap3:~# ./a.out -i 20; for i in `seq 1 20`; do echo $i ; sleep 1;done Set watchdog interval to 20 Current watchdog interval is 20 Last boot is caused by : Watchdog Use: to kick through writing over device file to kick through IOCTL to exit the program x 1 2 [snip] U-Boot SPL 2011.09 (Feb 09 2012 - 15:38:59) Texas Instruments Revision detection unimplemented U-Boot 2011.09 (Feb 09 2012 - 15:11:31) I2C: ready DRAM: 256 MiB WARNING: Caches not enabled Found a daughter card connected NAND: HW ECC Hamming Code selected 256 MiB MMC: OMAP SD/MMC: 0 Net: cpsw Hit any key to stop autoboot: 0 U-Boot# Regards, Zumeng ? 2012?07?10? 12:17, Zumeng Chen ??: > ? 2012?07?09? 15:35, Zumeng Chen ??: >> Hello, >> >> The following patches based on the 3.5-rc6 from Wim, which >> focus on: >> >> 1 ) bootstatus fix for omap3, >> >> 2 ) omap-wdt framework update cater for the current framework >> as Shubhrajyoti comments mentioned. > I compiled a test case from the following website, > http://www.lpclinux.com/Blogs/Testing_LPC313x_Linux_Watchdog_Driver > > It works well. > > root at ti-omap3:/tmp# ./a.out -h > Usage: ./a.out [options] > -h --help Display this usage information. > -d --dev Use as watchdog device file. > The default device file is '/dev/watchdog' > -i --interval Change the watchdog interval time > root at ti-omap3:/tmp# ./a.out -i 40; > Set watchdog interval to 40 > Current watchdog interval is 40 > Last boot is caused by : Watchdog > Use: > to kick through writing over device file > to kick through IOCTL > to exit the program > x > Goodbye ! > watchdog: Omap Watchdog: nowayout prevents watchdog to be stopped! > watchdog: Omap Watchdog: watchdog did not stop! > root at ti-omap3:/tmp# for i in `seq 1 30`; do echo $i; sleep 1;done > 1 > 2 > > [snip] > > I built NOWAYOUT in driver, so it doesn't stop, still going until the > following > information: > > Texas Instruments X-Loader 1.42 > Starting OS Bootloader... > No OOB scheme defined for oobsize 0 > OneNAND: 0 kB > 256 MiB > > Regards, > Zumeng >> Regards, >> >> Zumeng Chen (3): >> Watchdog: Omap: Changes for the new watchdog framework >> Watchdog: Omap: select watchdog core for framework change >> Watchdog: Omap: get the bootstatus for OMAP2Plus >> >> arch/arm/mach-omap2/prcm.c | 5 +- >> drivers/watchdog/Kconfig | 1 + >> drivers/watchdog/omap_wdt.c | 342 ++++++++++++++++--------------------------- >> drivers/watchdog/omap_wdt.h | 5 + >> 4 files changed, 133 insertions(+), 220 deletions(-) >> > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to majordomo at vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html