diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2012-08-27 11:10:43 -0700 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2012-11-07 18:39:42 +0100 |
| commit | a2f1b953401d071b45eb51bc21ab174759fcc13f (patch) | |
| tree | 0580e5de01cefefddb4837f381b6595aef5df16e /src/include/spi.h | |
| parent | 5c103aa8ae56c0758a3e8af11dc70fb62f833f7e (diff) | |
SPI: opmenu special case for WREN as atomic prefix
The code that attempts to use the opmenu needs to have a special
case for write enable now that it is handled as an atomic prefix
and not as a standalone opcode.
To test, ensure that runtime SPI write via ELOG is successful by
checking the event log for a kernel shutdown reason code:
5 | 2012-08-27 11:09:48 | Kernel Event | Clean Shutdown
6 | 2012-08-27 11:09:50 | System boot | 26
7 | 2012-08-27 11:09:50 | System Reset
Change-Id: I527638ef3e2a5ab100192c5be6e6b3b40916295a
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/1710
Reviewed-by: Marc Jones <marcj303@gmail.com>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/include/spi.h')
| -rw-r--r-- | src/include/spi.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/include/spi.h b/src/include/spi.h index bee851ea97..7d195d002a 100644 --- a/src/include/spi.h +++ b/src/include/spi.h @@ -44,6 +44,9 @@ #define SPI_XFER_BEGIN 0x01 /* Assert CS before transfer */ #define SPI_XFER_END 0x02 /* Deassert CS after transfer */ +/* SPI opcodes */ +#define SPI_OPCODE_WREN 0x06 + /*----------------------------------------------------------------------- * Representation of a SPI slave, i.e. what we're communicating with. * |