[U-Boot] [PATCH 03/35] Blackfin: expand EVT1 usage documentation a bit more

[Mike Frysinger]

Signed-off-by: Mike Frysinger <vapier at gentoo.org>
---
 arch/blackfin/cpu/initcode.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/arch/blackfin/cpu/initcode.c b/arch/blackfin/cpu/initcode.c
index 5f80ad6..9453d5d 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
-- 
1.7.1.1