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| author | Kumar Gala <galak@kernel.crashing.org> | 2008-02-27 21:51:50 -0600 |
|---|---|---|
| committer | Marian Balakowicz <m8@semihalf.com> | 2008-02-29 13:15:56 +0100 |
| commit | d3f2fa0d278467b2232e4eb2372f905c3febfbeb (patch) | |
| tree | 354a389881ddaacfc29a0b02c6fb12b9cb7c1f81 /common/image.c | |
| parent | e822d7fc4dd4755d4d0a22f05e33f33d1a0481da (diff) | |
[new uImage] Provide ability to restrict region used for boot images
Allow the user to set 'bootm_low' and 'bootm_size' env vars as a way
to restrict what memory range is used for bootm.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Marian Balakowicz <m8@semihalf.com>
Diffstat (limited to 'common/image.c')
| -rw-r--r-- | common/image.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/common/image.c b/common/image.c index 0b718119f4d..9e446faa730 100644 --- a/common/image.c +++ b/common/image.c @@ -132,6 +132,32 @@ int getenv_autostart (void) return (s && (*s == 'n')) ? 0 : 1; } +ulong getenv_bootm_low(void) +{ + char *s = getenv ("bootm_low"); + if (s) { + ulong tmp = simple_strtoul (s, NULL, 16); + return tmp; + } + +#ifdef CFG_SDRAM_BASE + return CFG_SDRAM_BASE; +#else + return 0; +#endif +} + +ulong getenv_bootm_size(void) +{ + char *s = getenv ("bootm_size"); + if (s) { + ulong tmp = simple_strtoul (s, NULL, 16); + return tmp; + } + + return gd->bd->bi_memsize; +} + void memmove_wd (void *to, void *from, size_t len, ulong chunksz) { #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) |