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authorYuri Tikhonov <yur@pollux.denx.de>2008-02-06 18:48:36 +0100
committerWolfgang Denk <wd@denx.de>2008-03-18 22:24:48 +0100
commit3d61018643a2cd38c145aa6dde53f3f5f1a0e9cf (patch)
tree99249b1e02761ceb02dc759d5fd5ea78a98cb980 /common/cmd_bootm.c
parent0f009f781b5b88f25769e154ea4d42db13baf0c6 (diff)
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The patch introduces the alternative configuration of the log buffer for the lwmon5 board: the storage for the log-buffer itself is OCM(on-chip memory), the log-buffer header is moved to six GPT registers (PPC440EPX_GPT0_COMP1, ..., PPC440EPX_GPT0_COMP5).
To enable this, alternative, configuration the U-Boot board configuration file for lwmon5 includes the definitions of alternative addresses for header (CONFIG_ALT_LH_ADDR) and buffer (CONFIG_ALT_LB_ADDR). The Linux shall be configured with the CONFIG_ALT_LB_LOCATION option set, and has the BOARD_ALT_LH_ADDR and BOARD_ALT_LB_ADDR constants defined in the lwmon5 board-specific header (arch/ppc/platforms/4xx/lwmon5.h). Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
Diffstat (limited to 'common/cmd_bootm.c')
-rw-r--r--common/cmd_bootm.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index 9546729..9deb781 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -545,11 +545,15 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
}
#ifdef CONFIG_LOGBUFFER
+#ifndef CONFIG_ALT_LB_ADDR
kbd=gd->bd;
/* Prevent initrd from overwriting logbuffer */
if (initrd_high < (kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD))
initrd_high = kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD;
debug ("## Logbuffer at 0x%08lX ", kbd->bi_memsize-LOGBUFF_LEN);
+#else
+ debug ("## Logbuffer at 0x%08lX ", CONFIG_ALT_LB_ADDR);
+#endif
#endif
/*