From ce1fe4ba6bb9df7c57351436fa17d1af8bbe7916 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Sat, 4 Apr 2009 08:09:24 -0400 Subject: [PATCH] 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 --- cpu/blackfin/initcode.c | 4 ++++ 1 file changed, 4 insertions(+) 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'); -- 2.7.4