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| author | wdenk <wdenk> | 2003-06-06 11:20:01 +0000 |
|---|---|---|
| committer | wdenk <wdenk> | 2003-06-06 11:20:01 +0000 |
| commit | 487778b781257831aa9b9140dd3c7ad4176e8314 (patch) | |
| tree | 9e6465b0df23d42d338dd23cccfba8189ab74395 /drivers | |
| parent | 8b601449e840a5d1e29859dc2a968c43284cee66 (diff) | |
| download | u-boot-imx-487778b781257831aa9b9140dd3c7ad4176e8314.zip u-boot-imx-487778b781257831aa9b9140dd3c7ad4176e8314.tar.gz u-boot-imx-487778b781257831aa9b9140dd3c7ad4176e8314.tar.bz2 | |
Patch by Robert Schwebel, April 02, 2003:
fix for SMSC91111 driver
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/smc91111.c | 14 | ||||
| -rw-r--r-- | drivers/smc91111.h | 2 |
2 files changed, 15 insertions, 1 deletions
diff --git a/drivers/smc91111.c b/drivers/smc91111.c index 652d859..748830e 100644 --- a/drivers/smc91111.c +++ b/drivers/smc91111.c @@ -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; diff --git a/drivers/smc91111.h b/drivers/smc91111.h index a372c27..3ac0a03 100644 --- a/drivers/smc91111.h +++ b/drivers/smc91111.h @@ -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; }) |