diff options
Diffstat (limited to 'src/southbridge')
| -rw-r--r-- | src/southbridge/amd/agesa/hudson/spi.c | 19 | ||||
| -rw-r--r-- | src/southbridge/amd/cimx/sb800/spi.c | 7 | ||||
| -rw-r--r-- | src/southbridge/intel/common/spi.c | 15 |
3 files changed, 13 insertions, 28 deletions
diff --git a/src/southbridge/amd/agesa/hudson/spi.c b/src/southbridge/amd/agesa/hudson/spi.c index c19d1a0ff8..720b26f83e 100644 --- a/src/southbridge/amd/agesa/hudson/spi.c +++ b/src/southbridge/amd/agesa/hudson/spi.c @@ -87,21 +87,14 @@ void spi_init(void) } int spi_xfer(struct spi_slave *slave, const void *dout, - unsigned int bitsout, void *din, unsigned int bitsin) + unsigned int bytesout, void *din, unsigned int bytesin) { /* First byte is cmd which can not being sent through FIFO. */ - uint8_t cmd = *(uint8_t *)dout++; - uint8_t readoffby1; -#if !CONFIG_SOUTHBRIDGE_AMD_AGESA_YANGTZE - uint8_t readwrite; -#endif - uint8_t bytesout, bytesin; - uint8_t count; - - bitsout -= 8; - bytesout = bitsout / 8; - bytesin = bitsin / 8; + u8 cmd = *(u8 *)dout++; + u8 readoffby1; + u8 count; + bytesout--; readoffby1 = bytesout ? 0 : 1; #if CONFIG_SOUTHBRIDGE_AMD_AGESA_YANGTZE @@ -110,7 +103,7 @@ int spi_xfer(struct spi_slave *slave, const void *dout, spi_write(0x1E, 6); spi_write(0x1F, bytesin); /* SpiExtRegIndx [6] - RxByteCount */ #else - readwrite = (bytesin + readoffby1) << 4 | bytesout; + u8 readwrite = (bytesin + readoffby1) << 4 | bytesout; spi_write(SPI_REG_CNTRL01, readwrite); #endif spi_write(SPI_REG_OPCODE, cmd); diff --git a/src/southbridge/amd/cimx/sb800/spi.c b/src/southbridge/amd/cimx/sb800/spi.c index d059f5eb00..a46349e933 100644 --- a/src/southbridge/amd/cimx/sb800/spi.c +++ b/src/southbridge/amd/cimx/sb800/spi.c @@ -57,18 +57,15 @@ void spi_init() } int spi_xfer(struct spi_slave *slave, const void *dout, - unsigned int bitsout, void *din, unsigned int bitsin) + unsigned int bytesout, void *din, unsigned int bytesin) { /* First byte is cmd which can not being sent through FIFO. */ u8 cmd = *(u8 *)dout++; u8 readoffby1; u8 readwrite; - u8 bytesout, bytesin; u8 count; - bitsout -= 8; - bytesout = bitsout / 8; - bytesin = bitsin / 8; + bytesout--; readoffby1 = bytesout ? 0 : 1; diff --git a/src/southbridge/intel/common/spi.c b/src/southbridge/intel/common/spi.c index 14d2f54d28..76fd22691f 100644 --- a/src/southbridge/intel/common/spi.c +++ b/src/southbridge/intel/common/spi.c @@ -551,7 +551,7 @@ static int spi_is_multichip (void) } int spi_xfer(struct spi_slave *slave, const void *dout, - unsigned int bitsout, void *din, unsigned int bitsin) + unsigned int bytesout, void *din, unsigned int bytesin) { uint16_t control; int16_t opcode_index; @@ -559,26 +559,21 @@ int spi_xfer(struct spi_slave *slave, const void *dout, int status; spi_transaction trans = { - dout, bitsout / 8, - din, bitsin / 8, + dout, bytesout, + din, bytesin, 0xff, 0xff, 0 }; /* There has to always at least be an opcode. */ - if (!bitsout || !dout) { + if (!bytesout || !dout) { printk(BIOS_DEBUG, "ICH SPI: No opcode for transfer\n"); return -1; } /* Make sure if we read something we have a place to put it. */ - if (bitsin != 0 && !din) { + if (bytesin != 0 && !din) { printk(BIOS_DEBUG, "ICH SPI: Read but no target buffer\n"); return -1; } - /* Right now we don't support writing partial bytes. */ - if (bitsout % 8 || bitsin % 8) { - printk(BIOS_DEBUG, "ICH SPI: Accessing partial bytes not supported\n"); - return -1; - } if (ich_status_poll(SPIS_SCIP, 0) == -1) return -1; |