From b30453ace4eb930ab224012bd2367fa3d1337ced Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Thu, 29 Apr 2010 02:49:41 -0400 Subject: [PATCH] Blackfin: expand EVT1 usage documentation a bit more Signed-off-by: Mike Frysinger --- arch/blackfin/cpu/initcode.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/blackfin/cpu/initcode.c b/arch/blackfin/cpu/initcode.c index 5f80ad615e..9453d5dc4d 100644 --- a/arch/blackfin/cpu/initcode.c +++ b/arch/blackfin/cpu/initcode.c @@ -675,7 +675,12 @@ void initcode(ADI_BOOT_DATA *bs) #ifdef CONFIG_BFIN_BOOTROM_USES_EVT1 serial_putc('I'); - /* tell the bootrom where our entry point is */ + /* Tell the bootrom where our entry point is so that it knows + * where to jump to when finishing processing the LDR. This + * allows us to avoid small jump blocks in the LDR, and also + * works around anomaly 05000389 (init address in external + * memory causes bootrom to trigger external addressing IVHW). + */ if (CONFIG_BFIN_BOOT_MODE != BFIN_BOOT_BYPASS) bfin_write_EVT1(CONFIG_SYS_MONITOR_BASE); #endif