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authorFelix Held <felix-coreboot@felixheld.de>2020-08-25 17:27:41 +0200
committerFelix Held <felix-coreboot@felixheld.de>2020-09-30 21:38:53 +0000
commit6646cb09729bfe560e8b1383b7255c2e2a8f3d86 (patch)
tree6dcf06cff12b67c7a7f13f834fe2c2b82c3e2b35 /src/include/spi_bitbang.h
parente310c7747ac8dadb49f008eb0196217d1a219740 (diff)
mb/amd/mandolin: change EFS SPI mode from 1-4-4 to 1-1-4
With this change the flash addresses will only get transferred over one data pin like in the non-quad SPI mode and only the data will get sent over all four data pins. Since this gives the flash chip a bit more time to fetch the data the host requested, this allows higher SPI frequencies resulting in a higher throughput when bigger chunks of memory get read. BRANCH=zork Change-Id: Iad4c922ffcdba4b17e6e81244ff37302eb171d97 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45831 Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/include/spi_bitbang.h')
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