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| author | Olof Johansson <olof@lixom.net> | 2013-12-26 10:31:33 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2013-12-26 10:31:33 -0800 |
| commit | 509633c8366a0df239297c89689e87aaf6625781 (patch) | |
| tree | 887622d77f0f2dc3886f52fdbe3f389df337dca1 /arch/arm/mach-pxa/reset.c | |
| parent | bb748890d13232dba4a3975368bfeea6896368ae (diff) | |
| parent | 319e2e3f63c348a9b66db4667efa73178e18b17d (diff) | |
| download | talos-obmc-linux-509633c8366a0df239297c89689e87aaf6625781.tar.gz talos-obmc-linux-509633c8366a0df239297c89689e87aaf6625781.zip | |
Merge tag 'v3.13-rc4' into next/cleanup
Linux 3.13-rc4
Diffstat (limited to 'arch/arm/mach-pxa/reset.c')
| -rw-r--r-- | arch/arm/mach-pxa/reset.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm/mach-pxa/reset.c b/arch/arm/mach-pxa/reset.c index 0d5dd646f61f..263b15249b5b 100644 --- a/arch/arm/mach-pxa/reset.c +++ b/arch/arm/mach-pxa/reset.c @@ -13,6 +13,7 @@ #include <mach/regs-ost.h> #include <mach/reset.h> +#include <mach/smemc.h> unsigned int reset_status; EXPORT_SYMBOL(reset_status); @@ -81,6 +82,12 @@ static void do_hw_reset(void) writel_relaxed(OSSR_M3, OSSR); /* ... in 100 ms */ writel_relaxed(readl_relaxed(OSCR) + 368640, OSMR3); + /* + * SDRAM hangs on watchdog reset on Marvell PXA270 (erratum 71) + * we put SDRAM into self-refresh to prevent that + */ + while (1) + writel_relaxed(MDREFR_SLFRSH, MDREFR); } void pxa_restart(enum reboot_mode mode, const char *cmd) @@ -104,4 +111,3 @@ void pxa_restart(enum reboot_mode mode, const char *cmd) break; } } - |
