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| author | Mike Frysinger <vapier@gentoo.org> | 2009-04-04 08:09:24 -0400 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2009-04-06 17:37:47 -0400 |
| commit | ce1fe4ba6bb9df7c57351436fa17d1af8bbe7916 (patch) | |
| tree | 9b4d23d630c9aabd66271ad3e8f9859fd5f457eb | |
| parent | 51ee6e057f7a920e2a125cd9f985d10f625e355f (diff) | |
| download | u-boot-imx-ce1fe4ba6bb9df7c57351436fa17d1af8bbe7916.zip u-boot-imx-ce1fe4ba6bb9df7c57351436fa17d1af8bbe7916.tar.gz u-boot-imx-ce1fe4ba6bb9df7c57351436fa17d1af8bbe7916.tar.bz2 | |
Blackfin: add workaround for anomaly 05000171
DESCRIPTION:
The Boot ROM is executed at power up/reset and changes the value of the
SICA_IWR registers from their default reset value of 0xFFFF, but does not
restore them.
WORKAROUND:
User code should not rely on the default value of these registers. Set
the desired values explicitly.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| -rw-r--r-- | cpu/blackfin/initcode.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/cpu/blackfin/initcode.c b/cpu/blackfin/initcode.c index 3120447..d44c6a6 100644 --- a/cpu/blackfin/initcode.c +++ b/cpu/blackfin/initcode.c @@ -356,6 +356,10 @@ void initcode(ADI_BOOT_DATA *bootstruct) #if ANOMALY_05000432 bfin_write_SIC_IWR1(-1); #endif +#if ANOMALY_05000171 + bfin_write_SICA_IWR0(-1); + bfin_write_SICA_IWR1(-1); +#endif } else { serial_putc('G'); |