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Removed hardcoded MxMR loop value from upmconfig() for MPC85xx.

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Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
This commit is contained in:
Sergei Poselenov 2008-08-15 15:42:11 +02:00 committed by Andrew Fleming-AFLEMING
parent 36241ca29d
commit 6cc64f9b5f
1 changed files with 7 additions and 8 deletions
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15
cpu/mpc85xx/cpu.c
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@ -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);
}