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| author | wdenk <wdenk> | 2002-11-05 16:35:14 +0000 |
|---|---|---|
| committer | wdenk <wdenk> | 2002-11-05 16:35:14 +0000 |
| commit | 56f94be3ef63732384063e110277ed89701b6471 (patch) | |
| tree | 6c7acdd32964b741cb69a8f0b03d5b9891587458 /common/cmd_bootm.c | |
| parent | 384ae02506f0673070a3516b1858f058a07f85f3 (diff) | |
| download | u-boot-imx-56f94be3ef63732384063e110277ed89701b6471.zip u-boot-imx-56f94be3ef63732384063e110277ed89701b6471.tar.gz u-boot-imx-56f94be3ef63732384063e110277ed89701b6471.tar.bz2 | |
* Add support for log buffer which can be passed to Linux kernel's
syslog mechanism; used especially for POST results.
* Patch by Klaus Heydeck, 31 Oct 2002:
Add initial support for kup4k board
Diffstat (limited to 'common/cmd_bootm.c')
| -rw-r--r-- | common/cmd_bootm.c | 37 |
1 files changed, 22 insertions, 15 deletions
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c index e8ce40d..70ca999 100644 --- a/common/cmd_bootm.c +++ b/common/cmd_bootm.c @@ -325,6 +325,17 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag, initrd_high = ~0; } +#ifdef CONFIG_LOGBUFFER + kbd=gd->bd; + if ((s = getenv ("logstart")) != NULL) { + kbd->bi_sramstart = simple_strtoul(s, NULL, 16); + /* Prevent initrd from overwriting logbuffer */ + if (initrd_high < kbd->bi_sramstart) + initrd_high = kbd->bi_sramstart-1024; + } + debug ("## Logbuffer at 0x%08lX ", kbd->bi_sramstart); +#endif + /* * Booting a (Linux) kernel image * @@ -337,17 +348,15 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag, asm( "mr %0,1": "=r"(sp) : ); -#ifdef DEBUG - printf ("## Current stack ends at 0x%08lX ", sp); -#endif + debug ("## Current stack ends at 0x%08lX ", sp); + sp -= 2048; /* just to be sure */ if (sp > CFG_BOOTMAPSZ) sp = CFG_BOOTMAPSZ; sp &= ~0xF; -#ifdef DEBUG - printf ("=> set upper limit to 0x%08lX\n", sp); -#endif + debug ("=> set upper limit to 0x%08lX\n", sp); + cmdline = (char *)((sp - CFG_BARGSIZE) & ~0xF); kbd = (bd_t *)(((ulong)cmdline - sizeof(bd_t)) & ~0xF); @@ -492,11 +501,9 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag, len = data = 0; } -#ifdef DEBUG if (!data) { - printf ("No initrd\n"); + debug ("No initrd\n"); } -#endif if (data) { initrd_start = (ulong)kbd - len; @@ -527,10 +534,10 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag, } SHOW_BOOT_PROGRESS (12); -#ifdef DEBUG - printf ("## initrd at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n", + + debug ("## initrd at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n", data, data + len - 1, len, len); -#endif + initrd_end = initrd_start + len; printf (" Loading Ramdisk to %08lx, end %08lx ... ", initrd_start, initrd_end); @@ -558,10 +565,10 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag, initrd_end = 0; } -#ifdef DEBUG - printf ("## Transferring control to Linux (at address %08lx) ...\n", + + debug ("## Transferring control to Linux (at address %08lx) ...\n", (ulong)kernel); -#endif + SHOW_BOOT_PROGRESS (15); #ifdef CFG_INIT_RAM_LOCK |