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| author | Marian Balakowicz <m8@semihalf.com> | 2008-02-21 17:18:01 +0100 |
|---|---|---|
| committer | Marian Balakowicz <m8@semihalf.com> | 2008-02-21 17:18:01 +0100 |
| commit | 20c93959330aba8b5bbdbfde1ef319e99eba235d (patch) | |
| tree | ef82297e3aeb904f94584e6d136fac55ec32c317 /board/netstal/hcu5/sdram.c | |
| parent | 5cf746c303710329f8040d9c62ee354313e3e91f (diff) | |
| parent | 928d1d77f8623c120d8763e20e1ca58df9c5c4c6 (diff) | |
| download | u-boot-imx-20c93959330aba8b5bbdbfde1ef319e99eba235d.zip u-boot-imx-20c93959330aba8b5bbdbfde1ef319e99eba235d.tar.gz u-boot-imx-20c93959330aba8b5bbdbfde1ef319e99eba235d.tar.bz2 | |
Merge branch 'master' of /home/git/u-boot
Diffstat (limited to 'board/netstal/hcu5/sdram.c')
| -rw-r--r-- | board/netstal/hcu5/sdram.c | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/board/netstal/hcu5/sdram.c b/board/netstal/hcu5/sdram.c index 5435de1..d3c2233 100644 --- a/board/netstal/hcu5/sdram.c +++ b/board/netstal/hcu5/sdram.c @@ -165,19 +165,25 @@ static void program_ecc(unsigned long start_address, unsigned long num_bytes) u32 val; char str[] = "ECC generation -"; #if defined(CONFIG_PRAM) - u32 *magic; - - /* Check whether vxWorks is using EDR logging, if yes zero */ - /* also PostMortem and user reserved memory */ - magic = (u32 *)in_be32((u32 *)(start_address + num_bytes - - (CONFIG_PRAM*1024) + sizeof(u32))); - - debug("\n%s: CONFIG_PRAM %d kB magic 0x%x 0x%p -> 0x%x\n", __FUNCTION__, - CONFIG_PRAM, - start_address + num_bytes - (CONFIG_PRAM*1024) + sizeof(u32), - magic, in_be32(magic)); - if (in_be32(magic) == 0xbeefbabe) - num_bytes -= (CONFIG_PRAM*1024) - PM_RESERVED_MEM; + u32 *magicPtr; + u32 magic; + + if ((mfspr(dbcr0) & 0x80000000) == 0) { + /* only if no external debugger is alive! + * Check whether vxWorks is using EDR logging, if yes zero + * also PostMortem and user reserved memory + */ + magicPtr = (u32 *)(start_address + num_bytes - + (CONFIG_PRAM*1024) + sizeof(u32)); + magic = in_be32(magicPtr); + debug("%s: CONFIG_PRAM %d kB magic 0x%x 0x%p\n", + __FUNCTION__, CONFIG_PRAM, + magicPtr, magic); + if (magic == 0xbeefbabe) { + printf("%s: preserving at %p\n", __FUNCTION__, magicPtr); + num_bytes -= (CONFIG_PRAM*1024) - PM_RESERVED_MEM; + } + } #endif sync(); |