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| author | Hans de Goede <hdegoede@redhat.com> | 2014-06-13 22:55:52 +0200 |
|---|---|---|
| committer | Ian Campbell <ijc@hellion.org.uk> | 2014-07-18 19:42:22 +0100 |
| commit | ae5de5a19df2d25ccf0e58bf59b74ebdb18612a2 (patch) | |
| tree | eb28321985fe2b9ed144f2ba58e02f98b4589afc /arch | |
| parent | 24289208354c143967968755cff5c825a12e3f90 (diff) | |
| download | u-boot-imx-ae5de5a19df2d25ccf0e58bf59b74ebdb18612a2.zip u-boot-imx-ae5de5a19df2d25ccf0e58bf59b74ebdb18612a2.tar.gz u-boot-imx-ae5de5a19df2d25ccf0e58bf59b74ebdb18612a2.tar.bz2 | |
sunxi: Fix reset hang on sun5i
Do the same as the Linux kernel does, this fixes the SoC hanging on reset
about 50% of the time.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/armv7/sunxi/board.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/board.c b/arch/arm/cpu/armv7/sunxi/board.c index 701f919..8f2cef3 100644 --- a/arch/arm/cpu/armv7/sunxi/board.c +++ b/arch/arm/cpu/armv7/sunxi/board.c @@ -77,7 +77,11 @@ void reset_cpu(ulong addr) /* Set the watchdog for its shortest interval (.5s) and wait */ writel(WDT_MODE_RESET_EN | WDT_MODE_EN, &wdog->mode); writel(WDT_CTRL_KEY | WDT_CTRL_RESTART, &wdog->ctl); - while (1); + + while (1) { + /* sun5i sometimes gets stuck without this */ + writel(WDT_MODE_RESET_EN | WDT_MODE_EN, &wdog->mode); + } } /* do some early init */ |