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authorMartin Roth <martinroth@google.com>2015-09-28 15:27:24 -0600
committerMartin Roth <martinroth@google.com>2015-10-05 17:43:11 +0000
commit3a54318856428cda41c5a45e41c4da727d352bf6 (patch)
treeb318ca7a8576d130ec18e853543d21542114d41b /src/drivers/spi/Kconfig
parentf35f5ff3cd86b247a1e8ff1df8d071a3a4556079 (diff)
downloadcoreboot-3a54318856428cda41c5a45e41c4da727d352bf6.tar.xz
Add EM100 'hyper term' spi console support in ramstage & smm
The EM100Pro allows the debug console to be sent over the SPI bus. This is not yet working in romstage due to the use of static variables in the SPI driver code. It is also not working on chipsets that have SPI write buffers of less than 10 characters due to the 9 byte command/header length specified by the EM100 protocol. While this currently works only with the EM100, it seems like it would be useful on any logic analyzer with SPI debug - just filter on command bytes of 0x11. Change-Id: Icd42ccd96cab0a10a4e70f4b02ecf9de8169564b Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: http://review.coreboot.org/11743 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/drivers/spi/Kconfig')
-rw-r--r--src/drivers/spi/Kconfig4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/drivers/spi/Kconfig b/src/drivers/spi/Kconfig
index 4052bb4713..dedb88f664 100644
--- a/src/drivers/spi/Kconfig
+++ b/src/drivers/spi/Kconfig
@@ -137,3 +137,7 @@ config SPI_FLASH_FAST_READ_DUAL_OUTPUT_3B
to the chip on MOSI and data is received on both MOSI and MISO.
endif # SPI_FLASH
+
+config HAVE_SPI_CONSOLE_SUPPORT
+ def_bool n
+