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2021-02-10soc/amd/common/blocks/lpc: Remove common SPI registersRaul E Rangel
Use the SoC versions instead. Signed-off-by: Raul E Rangel <rrangel@chromium.org> Change-Id: Ia0b8129b165f8a2e6be6706ab2e3f2d39e1025a0 Reviewed-on: https://review.coreboot.org/c/coreboot/+/50446 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
2020-07-27soc/amd: Use spi_writeX & spi_readX for all spi accessesMartin Roth
BUG=b:161366241 TEST=Build & boot Trembyle Signed-off-by: Martin Roth <martin@coreboot.org> Change-Id: Ied7789e9315c75174df9a686c831c5a969ce3bfe Reviewed-on: https://review.coreboot.org/c/coreboot/+/43773 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2020-07-27soc/amd/common: Move spi access functions into their own fileMartin Roth
Because there was a lot of discussion about the size increase, I also looked at the impact of calling the get_spi_bar() function vs reading spi_base directly and just not worring about whether or not spi_base was already set. Using the spi_base variable directly is 77 bytes bytes for all 6 functions. it's roughly double the size to call the function at 153 bytes. This was almost entirely due to setting up a call stack. If we add an assert into each function to make sure that the spi_base variable is set, it doubles from the size of the function call to 333 bytes. For my money, the function call is the best bet, because it not only protects us from using spi_base before it's set, it also gets the value for us (at least on x86, on the PSP, it still just dies.) BUG=b:161366241 TEST: Build Signed-off-by: Martin Roth <martin@coreboot.org> Change-Id: I0b0d005426ef90f09bf090789acb9d6383f17bd2 Reviewed-on: https://review.coreboot.org/c/coreboot/+/43772 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2020-07-26soc/amd/common: Refactor and consolidate code for spi baseMartin Roth
Previously, the spi base address code was using a number of different functions in a way that didn't work for use on the PSP. This patch consolidates all of that to a single saved value that gets the LPC SPI base address by default on X86, and allows the PSP to set it to a different value. BUG=b:159811539 TEST=Build with following patch to set the SPI speed in psp_verstage. Signed-off-by: Martin Roth <martinroth@chromium.org> Change-Id: I50d9de269bcb88fbf510056a6216e22a050cae6b Reviewed-on: https://review.coreboot.org/c/coreboot/+/43307 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13Remove new additions of "this file is part of" linesFurquan Shaikh
CB:41194 got rid of "this file is part of" lines. However, there are some changes that landed right around the same time including those lines. This change uses the following command to drop the lines from new files: sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool) Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: Ic3c1d717416f6b7e946f84748e2b260552c06a1b Reviewed-on: https://review.coreboot.org/c/coreboot/+/41342 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-12soc/amd/common/block/spi: Add support for common SPI configurationFurquan Shaikh
This change adds support for following SPI configuration functions to common block SPI driver and exposes them to be used by SoC: 1. fch_spi_early_init(): Sets up SPI ROM base, enables SPI ROM, enables prefetching, disables 4dw burst mode and sets SPI speed and mode. 2. fch_spi_config_modes(): This allows SoC to configure SPI speed and mode. It uses SPI settings from soc_amd_common_config to configure the speed and mode. These functions expect SoC to include soc_amd_common_config in SoC chip config and mainboard to configure these settings in device tree. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: Ia4f231bab69e8450005dd6abe7a8e014d5eb7261 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41248 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>