From 3d61018643a2cd38c145aa6dde53f3f5f1a0e9cf Mon Sep 17 00:00:00 2001 From: Yuri Tikhonov Date: Wed, 6 Feb 2008 18:48:36 +0100 Subject: 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 --- common/cmd_bootm.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'common/cmd_bootm.c') 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 /* -- cgit v1.1