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| author | Yuri Tikhonov <yur@pollux.denx.de> | 2008-02-06 18:48:36 +0100 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2008-03-18 22:24:48 +0100 |
| commit | 3d61018643a2cd38c145aa6dde53f3f5f1a0e9cf (patch) | |
| tree | 99249b1e02761ceb02dc759d5fd5ea78a98cb980 /lib_ppc/board.c | |
| parent | 0f009f781b5b88f25769e154ea4d42db13baf0c6 (diff) | |
| download | u-boot-imx-3d61018643a2cd38c145aa6dde53f3f5f1a0e9cf.zip u-boot-imx-3d61018643a2cd38c145aa6dde53f3f5f1a0e9cf.tar.gz u-boot-imx-3d61018643a2cd38c145aa6dde53f3f5f1a0e9cf.tar.bz2 | |
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 'lib_ppc/board.c')
| -rw-r--r-- | lib_ppc/board.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib_ppc/board.c b/lib_ppc/board.c index fbf1c5d..ee0213e 100644 --- a/lib_ppc/board.c +++ b/lib_ppc/board.c @@ -436,10 +436,12 @@ void board_init_f (ulong bootflag) addr = CFG_SDRAM_BASE + get_effective_memsize(); #ifdef CONFIG_LOGBUFFER +#ifndef CONFIG_ALT_LB_ADDR /* reserve kernel log buffer */ addr -= (LOGBUFF_RESERVE); debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr); #endif +#endif #ifdef CONFIG_PRAM /* @@ -1126,9 +1128,11 @@ void board_init_r (gd_t *id, ulong dest_addr) pram=0; #endif #ifdef CONFIG_LOGBUFFER +#ifndef CONFIG_ALT_LB_ADDR /* Also take the logbuffer into account (pram is in kB) */ pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024; #endif +#endif sprintf ((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram); setenv ("mem", (char *)memsz); } |