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path: root/src/soc/intel/elkhartlake/spi.c
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2022-09-22soc/intel/spi: Move BIOS flash SPI controllers to fast SPI driverWerner Zeh
There are two classes of SPI controllers on Intel chipsets: * generic usable SPI controllers * SPI controller hosting the BIOS flash (fast SPI controller) While the first class can be used for generic peripheral attachment the second class mostly controls the BIOS flash and a TPM device (if enabled). The generic SPI driver is not fully applicable to the fast SPI controller. In addition, the fast SPI controller reports the reserved MMIO range used for the BIOS flash mapping so that the OS is aware of this range. This patch moves the fast SPI controller of all known SoCs to the fast SPI driver in common code. In addition, the PCI device for the fast SPI controller is removed from the function 'spi_soc_devfn_to_bus' as this is a callback of the generic SPI driver. Change-Id: Ia881c1d274acdcf7f042dd8284048a7dd018a84b Signed-off-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/67173 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2020-09-08soc/intel/elkhartlake: Do initial SoC commit till ramstageTan, Lean Sheng
Clone entirely from Jasperlake List of changes on top off initial jasperlake clone 1. Replace "Jasperlake" with "Elkhartlake" 2. Replace "jsl" with "ehl" 3. Replace "jsp" with "mcc" 4. Rename structure based on Jasperlake with Elkhartlake 5. Clean up upd override in fsp_params.c will be added later 6. Sort #include files alphabetically as per comment 7. Remove doc details from espi.c until it is ready 8. Remove pch_isclk & camera clocks related codes 9. Add new #define NMI_STS_CNT & NMI_EN as per comment Signed-off-by: Tan, Lean Sheng <lean.sheng.tan@intel.com> Change-Id: I372b0bb5912e013445ed8df7c58d0a9ee9a7cf35 Reviewed-on: https://review.coreboot.org/c/coreboot/+/44802 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com>