diff options
| author | Siyuan Wang <wangsiyuanbuaa@gmail.com> | 2013-07-09 17:32:42 +0800 |
|---|---|---|
| committer | Bruce Griffith <Bruce.Griffith@se-eng.com> | 2013-08-05 18:24:10 +0200 |
| commit | 915714501bc411f83717b41ebf269fc82a5e9657 (patch) | |
| tree | d2abad9827fadd504b4a4bd5945401fdc32f399b /src/southbridge/amd/agesa/hudson/spi.c | |
| parent | 3e32cc00d1984e7a0d01039577e5aa6ae3b2aa81 (diff) | |
AMD Kabini: Modify Hudson southbridge to support new AMD processor
Yangtze uses Hudson AGESA wrapper code but has some changes.
The changes are necessary and have no effects on Hudson.
Change-Id: Iada90d34fdc2025bd14f566488ee12810a28ac0d
Signed-off-by: Siyuan Wang <SiYuan.Wang@amd.com>
Signed-off-by: Siyuan Wang <wangsiyuanbuaa@gmail.com>
Signed-off-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
Reviewed-by: Dave Frodin <dave.frodin@se-eng.com>
Tested-by: Bruce Griffith <bruce.griffith@se-eng.com>
Reviewed-on: http://review.coreboot.org/3783
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin.roth@se-eng.com>
Diffstat (limited to 'src/southbridge/amd/agesa/hudson/spi.c')
| -rw-r--r-- | src/southbridge/amd/agesa/hudson/spi.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/southbridge/amd/agesa/hudson/spi.c b/src/southbridge/amd/agesa/hudson/spi.c index 1a63ce2b15..b89ea5d66e 100644 --- a/src/southbridge/amd/agesa/hudson/spi.c +++ b/src/southbridge/amd/agesa/hudson/spi.c @@ -61,7 +61,9 @@ int spi_xfer(struct spi_slave *slave, const void *dout, /* First byte is cmd which can not being sent through FIFO. */ u8 cmd = *(u8 *)dout++; u8 readoffby1; +#if !CONFIG_SOUTHBRIDGE_AMD_AGESA_YANGTZE u8 readwrite; +#endif u8 bytesout, bytesin; u8 count; @@ -71,8 +73,15 @@ int spi_xfer(struct spi_slave *slave, const void *dout, readoffby1 = bytesout ? 0 : 1; +#if CONFIG_SOUTHBRIDGE_AMD_AGESA_YANGTZE + write8(spibar + 0x1E, 5); + write8(spibar + 0x1F, bytesout); /* SpiExtRegIndx [5] - TxByteCount */ + write8(spibar + 0x1E, 6); + write8(spibar + 0x1F, bytesin); /* SpiExtRegIndx [6] - RxByteCount */ +#else readwrite = (bytesin + readoffby1) << 4 | bytesout; write8(spibar + 1, readwrite); +#endif write8(spibar + 0, cmd); reset_internal_fifo_pointer(); |