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| author | Sergei Poselenov <sposelenov@emcraft.com> | 2008-08-15 15:42:11 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2008-09-09 10:14:32 +0200 |
| commit | 59f630588e3fdbd698a0a2798e52a8924e899563 (patch) | |
| tree | 0b35a3bc5af32f29afd60f9cbb2cfb2df1a50949 /cpu/mpc85xx/cpu.c | |
| parent | e64987a892353f3d49eb242d997820ef8f538912 (diff) | |
| download | blackbird-obmc-uboot-59f630588e3fdbd698a0a2798e52a8924e899563.tar.gz blackbird-obmc-uboot-59f630588e3fdbd698a0a2798e52a8924e899563.zip | |
Removed hardcoded MxMR loop value from upmconfig() for MPC85xx.
Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
Diffstat (limited to 'cpu/mpc85xx/cpu.c')
| -rw-r--r-- | cpu/mpc85xx/cpu.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c index 7976caca67..67e81c0574 100644 --- a/cpu/mpc85xx/cpu.c +++ b/cpu/mpc85xx/cpu.c @@ -298,15 +298,14 @@ int dma_xfer(void *dest, uint count, void *src) { #endif /* - * Configures a UPM. Currently, the loop fields in MxMR (RLF, WLF and TLF) - * are hardcoded as "1"."size" is the number or entries, not a sizeof. + * Configures a UPM. The function requires the respective MxMR to be set + * before calling this function. "size" is the number or entries, not a sizeof. */ void upmconfig (uint upm, uint * table, uint size) { int i, mdr, mad, old_mad = 0; volatile u32 *mxmr; volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR); - int loopval = 0x00004440; volatile u32 *brp,*orp; volatile u8* dummy = NULL; int upmmask; @@ -334,8 +333,8 @@ void upmconfig (uint upm, uint * table, uint size) i++, brp += 2, orp += 2) { /* Look for a valid BR with selected UPM */ - if ((in_be32(brp) & (BR_V | upmmask)) == (BR_V | upmmask)) { - dummy = (volatile u8*)(in_be32(brp) >> BR_BA_SHIFT); + if ((in_be32(brp) & (BR_V | BR_MSEL)) == (BR_V | upmmask)) { + dummy = (volatile u8*)(in_be32(brp) & BR_BA); break; } } @@ -347,7 +346,7 @@ void upmconfig (uint upm, uint * table, uint size) for (i = 0; i < size; i++) { /* 1 */ - out_be32(mxmr, loopval | 0x10000000 | i); /* OP_WRITE */ + out_be32(mxmr, (in_be32(mxmr) & 0x4fffffc0) | MxMR_OP_WARR | i); /* 2 */ out_be32(&lbc->mdr, table[i]); /* 3 */ @@ -356,11 +355,11 @@ void upmconfig (uint upm, uint * table, uint size) *(volatile u8 *)dummy = 0; /* 5 */ do { - mad = in_be32(mxmr) & 0x3f; + mad = in_be32(mxmr) & MxMR_MAD_MSK; } while (mad <= old_mad && !(!mad && i == (size-1))); old_mad = mad; } - out_be32(mxmr, loopval); /* OP_NORMAL */ + out_be32(mxmr, (in_be32(mxmr) & 0x4fffffc0) | MxMR_OP_NORM); } |
