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Patch by Robert Schwebel, April 02, 2003:

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fix for SMSC91111 driver
This commit is contained in:
wdenk 2003-06-06 11:20:01 +00:00
parent 8b601449e8
commit 487778b781
3 changed files with 18 additions and 1 deletions
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3
CHANGELOG
View File

@ -2,6 +2,9 @@
Changes since U-Boot 0.3.1:
======================================================================
* Patch by Robert Schwebel, April 02, 2003:
fix for SMSC91111 driver
* Patch by Vladimir Gurevich, 04 Jun 2003:
make ppc405 ethernet driver compatible with CONFIG_NET_MULTI option

14
drivers/smc91111.c
View File

@ -317,6 +317,17 @@ static int poll4int( byte mask, int timeout ) {
return 0;
}
/* Only one release command at a time, please */
static inline void smc_wait_mmu_release_complete(void)
{
int count = 0;
/* assume bank 2 selected */
while ( SMC_inw(MMU_CMD_REG) & MC_BUSY ) {
udelay(1); // Wait until not busy
if( ++count > 200) break;
}
}
/*
. Function: smc_reset( void )
. Purpose:
@ -374,6 +385,7 @@ static void smc_reset( void )
/* Reset the MMU */
SMC_SELECT_BANK( 2 );
smc_wait_mmu_release_complete();
SMC_outw( MC_RESET, MMU_CMD_REG );
while ( SMC_inw( MMU_CMD_REG ) & MC_BUSY )
udelay(1); /* Wait until not busy */
@ -674,6 +686,8 @@ static int smc_open()
/* SMC_SELECT_BANK(0); */
/* SMC_outw(0, RPC_REG); */
SMC_SELECT_BANK(1);
#ifdef USE_32_BIT
for ( i = 0; i < 6; i += 2 ) {
word address;

2
drivers/smc91111.h
View File

@ -80,7 +80,7 @@ typedef unsigned long int dword;
#define SMC_inw(r) (*((volatile word *)(SMC_BASE_ADDRESS+(r))))
#define SMC_inb(p) ({ \
unsigned int __p = (unsigned int)(SMC_BASE_ADDRESS + (p)); \
unsigned int __v = *(volatile unsigned short *)((SMC_BASE_ADDRESS + __p) & ~1); \
unsigned int __v = *(volatile unsigned short *)((__p) & ~1); \
if (__p & 1) __v >>= 8; \
else __v &= 0xff; \
__v; })