diff options
| -rw-r--r-- | common/cmd_bootm.c | 10 | ||||
| -rw-r--r-- | common/image.c | 26 | ||||
| -rw-r--r-- | include/image.h | 2 | ||||
| -rw-r--r-- | lib_m68k/bootm.c | 4 | ||||
| -rw-r--r-- | lib_ppc/bootm.c | 26 |
5 files changed, 60 insertions, 8 deletions
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c index a32a5a256..8595ef688 100644 --- a/common/cmd_bootm.c +++ b/common/cmd_bootm.c @@ -124,6 +124,7 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) ulong os_data, os_len; ulong image_start, image_end; ulong load_start, load_end; + ulong mem_start, mem_size; struct lmb lmb; @@ -134,11 +135,10 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) lmb_init(&lmb); -#ifdef CFG_SDRAM_BASE - lmb_add(&lmb, CFG_SDRAM_BASE, gd->bd->bi_memsize); -#else - lmb_add(&lmb, 0, gd->bd->bi_memsize); -#endif + mem_start = getenv_bootm_low(); + mem_size = getenv_bootm_size(); + + lmb_add(&lmb, mem_start, mem_size); board_lmb_reserve(&lmb); diff --git a/common/image.c b/common/image.c index 0b718119f..9e446faa7 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) diff --git a/include/image.h b/include/image.h index 97eb5203b..ee692ac60 100644 --- a/include/image.h +++ b/include/image.h @@ -316,6 +316,8 @@ int image_check_dcrc (image_header_t *hdr); int image_check_dcrc_wd (image_header_t *hdr, ulong chunksize); int getenv_verify (void); int getenv_autostart (void); +ulong getenv_bootm_low(void); +ulong getenv_bootm_size(void); void memmove_wd (void *to, void *from, size_t len, ulong chunksz); #endif diff --git a/lib_m68k/bootm.c b/lib_m68k/bootm.c index 8429ca09e..eca044ece 100644 --- a/lib_m68k/bootm.c +++ b/lib_m68k/bootm.c @@ -57,12 +57,14 @@ void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, int ret; ulong cmd_start, cmd_end; - ulong bootmap_base = 0; + ulong bootmap_base; bd_t *kbd; ulong ep = 0; void (*kernel) (bd_t *, ulong, ulong, ulong, ulong); struct lmb *lmb = images->lmb; + bootmap_base = getenv_bootm_low(); + /* * Booting a (Linux) kernel image * diff --git a/lib_ppc/bootm.c b/lib_ppc/bootm.c index d74a3f46f..59cc2a447 100644 --- a/lib_ppc/bootm.c +++ b/lib_ppc/bootm.c @@ -59,6 +59,10 @@ extern ulong get_effective_memsize(void); static ulong get_sp (void); static void set_clocks_in_mhz (bd_t *kbd); +#ifndef CFG_LINUX_LOWMEM_MAX_SIZE +#define CFG_LINUX_LOWMEM_MAX_SIZE (768*1024*1024) +#endif + void __attribute__((noinline)) do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], bootm_headers_t *images) @@ -67,6 +71,7 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], ulong initrd_start, initrd_end; ulong rd_data_start, rd_data_end, rd_len; + ulong size; ulong cmd_start, cmd_end, bootmap_base; bd_t *kbd; @@ -80,7 +85,24 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], char *of_flat_tree = NULL; #endif - bootmap_base = 0; + bootmap_base = getenv_bootm_low(); + size = getenv_bootm_size(); + +#ifdef DEBUG + if (((u64)bootmap_base + size) > (CFG_SDRAM_BASE + (u64)gd->ram_size)) + puts("WARNING: bootm_low + bootm_size exceed total memory\n"); + if ((bootmap_base + size) > get_effective_memsize()) + puts("WARNING: bootm_low + bootm_size exceed eff. memory\n"); +#endif + + size = min(size, get_effective_memsize()); + size = min(size, CFG_LINUX_LOWMEM_MAX_SIZE); + + if (size < getenv_bootm_size()) { + ulong base = bootmap_base + size; + printf("WARNING: adjusting available memory to %x\n", size); + lmb_reserve(lmb, base, getenv_bootm_size() - size); + } /* * Booting a (Linux) kernel image @@ -92,7 +114,7 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], * pointer. */ sp = get_sp(); - debug ("## Current stack ends at 0x%08lx ", sp); + debug ("## Current stack ends at 0x%08lx\n", sp); /* adjust sp by 1K to be safe */ sp -= 1024; |