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| author | Wolfgang Denk <wd@pollux.denx.de> | 2006-04-06 10:42:23 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@pollux.denx.de> | 2006-04-06 10:42:23 +0200 |
| commit | 9bc97a3d91bf3287b593afa2a5b9e3bb07c9de5c (patch) | |
| tree | 3e46eb2fb0da23629dc00c034d2083b54d49f38e /board | |
| parent | 71b405df4e8efc0d6ac3b308d15e74eaa029eb5c (diff) | |
| parent | b66a9383421805c705654ce9456ec28c202819fb (diff) | |
Fix Lite500B support: Merge with /home/raj/git/u-boot.l5200b_pci
Diffstat (limited to 'board')
| -rw-r--r-- | board/icecube/icecube.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/board/icecube/icecube.c b/board/icecube/icecube.c index 44831c625a..4197a7c521 100644 --- a/board/icecube/icecube.c +++ b/board/icecube/icecube.c @@ -27,6 +27,7 @@ #include <common.h> #include <mpc5xxx.h> #include <pci.h> +#include <asm/processor.h> #if defined(CONFIG_LITE5200B) #include "mt46v32m16.h" @@ -89,6 +90,8 @@ long int initdram (int board_type) { ulong dramsize = 0; ulong dramsize2 = 0; + uint svr, pvr; + #ifndef CFG_RAMBOOT ulong test1, test2; @@ -183,6 +186,24 @@ long int initdram (int board_type) #endif /* CFG_RAMBOOT */ + /* + * On MPC5200B we need to set the special configuration delay in the + * DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM + * Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190: + * + * "The SDelay should be written to a value of 0x00000004. It is + * required to account for changes caused by normal wafer processing + * parameters." + */ + svr = get_svr(); + pvr = get_pvr(); + if ((SVR_MJREV(svr) >= 2) && + (PVR_MAJ(pvr) == 1) && (PVR_MIN(pvr) == 4)) { + + *(vu_long *)MPC5XXX_SDRAM_SDELAY = 0x04; + __asm__ volatile ("sync"); + } + return dramsize + dramsize2; } |