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elog: Probe for SPI flash on bus indicated by Kconfig variable

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This replaces a hard-coded bus number of 0 with a Kconfig variable,
CONFIG_BOOT_MEDIA_SPI_BUS. This removes an assumption made for x86
where this value is always 0 and makes it easy to add support for
other platforms where the bus number for the backing SPI flash is
more arbitrary.

BUG=none
BRANCH=none
TEST=tested on Nyan (bus=4) and Link (bus=0)
Signed-off-by: David Hendricks <dhendrix@chromium.org>

Change-Id: I1e878a1628af7f4ccc2f39a70b2190192767e536
Reviewed-on: https://chromium-review.googlesource.com/194854
Tested-by: David Hendricks <dhendrix@chromium.org>
Reviewed-by: Gabe Black <gabeblack@chromium.org>
Commit-Queue: David Hendricks <dhendrix@chromium.org>
This commit is contained in:
David Hendricks 2014-04-14 14:57:36 -07:00 • committed by chrome-internal-fetch
commit 371c6c14d8
1 changed files with 1 additions and 1 deletions
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2
src/drivers/elog/elog.c
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@ -547,7 +547,7 @@ int elog_init(void)
/* Prepare SPI */
spi_init();
elog_spi = spi_flash_probe(0, 0);
elog_spi = spi_flash_probe(CONFIG_BOOT_MEDIA_SPI_BUS, 0);
if (!elog_spi) {
printk(BIOS_ERR, "ELOG: Unable to find SPI flash\n");
return -1;