diff options
Diffstat (limited to 'src/southbridge/amd')
| -rw-r--r-- | src/southbridge/amd/agesa/hudson/spi.c | 6 | ||||
| -rw-r--r-- | src/southbridge/amd/cimx/sb800/spi.c | 7 |
2 files changed, 13 insertions, 0 deletions
diff --git a/src/southbridge/amd/agesa/hudson/spi.c b/src/southbridge/amd/agesa/hudson/spi.c index 720b26f83e..f050a63f91 100644 --- a/src/southbridge/amd/agesa/hudson/spi.c +++ b/src/southbridge/amd/agesa/hudson/spi.c @@ -42,6 +42,7 @@ static int bus_claimed = 0; #define SPI_REG_CNTRL11 0xd #define CNTRL11_FIFOPTR_MASK 0x07 +#define AMD_SB_SPI_TX_LEN 64 static u32 spibar; @@ -86,6 +87,11 @@ void spi_init(void) spibar = pci_read_config32(dev, 0xA0) & ~0x1F; } +unsigned int spi_crop_chunk(unsigned int cmd_len, unsigned int buf_len) +{ + return min(AMD_SB_SPI_TX_LEN - cmd_len, buf_len); +} + int spi_xfer(struct spi_slave *slave, const void *dout, unsigned int bytesout, void *din, unsigned int bytesin) { diff --git a/src/southbridge/amd/cimx/sb800/spi.c b/src/southbridge/amd/cimx/sb800/spi.c index a46349e933..e5b2407082 100644 --- a/src/southbridge/amd/cimx/sb800/spi.c +++ b/src/southbridge/amd/cimx/sb800/spi.c @@ -32,6 +32,8 @@ static int bus_claimed = 0; #endif +#define AMD_SB_SPI_TX_LEN 8 + static u32 spibar; static void reset_internal_fifo_pointer(void) @@ -56,6 +58,11 @@ void spi_init() spibar = pci_read_config32(dev, 0xA0) & ~0x1F; } +unsigned int spi_crop_chunk(unsigned int cmd_len, unsigned int buf_len) +{ + return min(AMD_SB_SPI_TX_LEN - cmd_len, buf_len); +} + int spi_xfer(struct spi_slave *slave, const void *dout, unsigned int bytesout, void *din, unsigned int bytesin) { |