diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2012-10-10 14:21:23 -0700 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2012-11-12 17:09:21 +0100 |
| commit | 23b0053586974e0db70349a272d8cc09167fb4cb (patch) | |
| tree | 1fa83fb40811ea1b4261d97ed36dbc8fc4428c11 /src/southbridge/intel/bd82x6x/spi.c | |
| parent | a571c70c14a86d242be39fc12610b2519499379f (diff) | |
SPI: Fix and enable Fast Read support
- Fix handling of 5-byte Fast Read command in the ICH SPI
driver. This fix is ported from the U-boot driver.
- Allow CONFIG_SPI_FLASH_NO_FAST_READ to be overridden by
defining a name for the bool in Kconfig and removing the
forced select in southbridge config
- Fix use of CONFIG_SPI_FLASH_NO_FAST_READ in SPI drivers
to use #if instead of #ifdef
- Relocate flash functions in SMM so they are usable.
This really only needs to happen for read function pointer
since it uses a global function rather than a static one from
the chip, but it is good to ensure the rest are set up
correctly as well.
Change-Id: Ic1bb0764cb111f96dd8a389d83b39fe8f5e72fbd
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/1775
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/southbridge/intel/bd82x6x/spi.c')
| -rw-r--r-- | src/southbridge/intel/bd82x6x/spi.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/southbridge/intel/bd82x6x/spi.c b/src/southbridge/intel/bd82x6x/spi.c index 53b9982192..05649fc85d 100644 --- a/src/southbridge/intel/bd82x6x/spi.c +++ b/src/southbridge/intel/bd82x6x/spi.c @@ -484,6 +484,12 @@ static void spi_setup_type(spi_transaction *trans) if (trans->bytesout == 4) { /* and bytesin is > 0 */ trans->type = SPI_OPCODE_TYPE_READ_WITH_ADDRESS; } + + /* Fast read command is called with 5 bytes instead of 4 */ + if (trans->out[0] == SPI_OPCODE_FAST_READ && trans->bytesout == 5) { + trans->type = SPI_OPCODE_TYPE_READ_WITH_ADDRESS; + --trans->bytesout; + } } static int spi_setup_opcode(spi_transaction *trans) |