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Fix smc91111 ethernet driver for Xaeniax board (need to handle 

unaligned tail part specially).
This commit is contained in:
wdenk 2004-11-22 22:20:07 +00:00
parent 9d5028c2f7
commit bb310d462b
2 changed files with 23 additions and 0 deletions
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3
CHANGELOG
View File

@ -2,6 +2,9 @@
Changes since U-Boot 1.1.1:
======================================================================
* Fix smc91111 ethernet driver for Xaeniax board (need to handle
unaligned tail part specially).
* Update for AT91RM9200DK and CMC_PU2 boards:
- Enable booting directly from flash
- fix CMC_PU2 flash driver

20
drivers/smc91111.c
View File

@ -683,19 +683,39 @@ again:
*/
#ifdef USE_32_BIT
SMC_outsl (SMC91111_DATA_REG, buf, length >> 2);
#ifndef CONFIG_XAENIAX
if (length & 0x2)
SMC_outw (*((word *) (buf + (length & 0xFFFFFFFC))),
SMC91111_DATA_REG);
#else
/* On XANEIAX, we can only use 32-bit writes, so we need to handle
* unaligned tail part specially. The standard code doesn't work.
*/
if ((length & 3) == 3) {
u16 * ptr = (u16*) &buf[length-3];
SMC_outl((*ptr) | ((0x2000 | buf[length-1]) << 16),
SMC91111_DATA_REG);
} else if ((length & 2) == 2) {
u16 * ptr = (u16*) &buf[length-2];
SMC_outl(*ptr, SMC91111_DATA_REG);
} else if (length & 1) {
SMC_outl((0x2000 | buf[length-1]), SMC91111_DATA_REG);
} else {
SMC_outl(0, SMC91111_DATA_REG);
}
#endif
#else
SMC_outsw (SMC91111_DATA_REG, buf, (length) >> 1);
#endif /* USE_32_BIT */
#ifndef CONFIG_XAENIAX
/* Send the last byte, if there is one. */
if ((length & 1) == 0) {
SMC_outw (0, SMC91111_DATA_REG);
} else {
SMC_outw (buf[length - 1] | 0x2000, SMC91111_DATA_REG);
}
#endif
/* and let the chipset deal with it */
SMC_outw (MC_ENQUEUE, MMU_CMD_REG);