From b30453ace4eb930ab224012bd2367fa3d1337ced Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Thu, 29 Apr 2010 02:49:41 -0400
Subject: [PATCH] Blackfin: expand EVT1 usage documentation a bit more
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
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
--
2.39.5