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2018-04-10soc/intel/common: prepare for lpss clock splitAaron Durbin
Apparently Intel had decided to use different clock speeds for some of its IP blocks in some of its designs. The i2c designware driver has already been moved into common code allowing for its own Kconfig value. That currently leaves SPI (UART isn't using the clock currently). Therefore, remove SOC_INTEL_COMMON_LPSS_CLOCK_MHZ and add SOC_INTEL_COMMON_BLOCK_GSPI_CLOCK_MHZ to allow for the different clock speeds present in the system for the various IP blocks. BUG=b:75306520 Change-Id: I6cb8c2de0ff446b6006bc37645fca64f2b70bf17 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/25608 Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Hannah Williams <hannah.williams@intel.com> Reviewed-by: Subrata Banik <subrata.banik@intel.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2017-08-14common/block/lpss: Add CLK read function into LPSS commonSubrata Banik
This patch add new API to read LPSS CLK register. Also combine multiple LPSS_CLOCK_CTL_REG writes into a single write inside lpss_clk_update function. Change-Id: I420919ad9154c4cf426bc232c5eb59d95fd698d2 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/20938 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-08-10soc/intel/common/lpss: Add lpss_is_controller_in_resetFurquan Shaikh
Add new API function lpss_is_controller_in_reset that returns whether the LPSS controller is in reset. Also, add lpss.c to smm stage so that lpss_is_controller_in_reset can be used in smihandler. BUG=b:64030366 Change-Id: I0fe5c2890ee799b08482e487296a483fa8d42461 Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/20885 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-04-10soc/intel/common/block: Add LPSS function libraryAamir Bohra
LPSS function library implements common register programming under lpss. Change-Id: I881da01be8191270d9505737f68a6d2d8cd8cc69 Signed-off-by: Aamir Bohra <aamir.bohra@intel.com> Reviewed-on: https://review.coreboot.org/19001 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>