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| author | Mike Frysinger <vapier@gentoo.org> | 2010-04-29 02:49:41 -0400 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2010-07-05 04:18:18 -0400 |
| commit | b30453ace4eb930ab224012bd2367fa3d1337ced (patch) | |
| tree | 1929b3bf7289adf244d9ead863fe4ff6c1f3d7bc /arch/blackfin/cpu | |
| parent | a5384ae49a52e2d4744aed20d729ccf20e7a907a (diff) | |
| download | u-boot-imx-b30453ace4eb930ab224012bd2367fa3d1337ced.zip u-boot-imx-b30453ace4eb930ab224012bd2367fa3d1337ced.tar.gz u-boot-imx-b30453ace4eb930ab224012bd2367fa3d1337ced.tar.bz2 | |
Blackfin: expand EVT1 usage documentation a bit more
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/cpu')
| -rw-r--r-- | 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 |