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authorFelix Held <felix-coreboot@felixheld.de>2024-08-02 23:42:41 +0200
committerFelix Held <felix-coreboot@felixheld.de>2024-08-07 16:39:22 +0000
commit20b79eca820c9eece0b85e1ec1434b9d5b8791d2 (patch)
tree8c32fa45323479eea36a21186fff6812bada836c /src/soc/intel/tigerlake/soundwire.c
parent8cfb73c777e2123189021c26929bc9faa75867d8 (diff)
soc/amd/common/psp_smi_flash: implement SPI info command
Detect the block size of the SPI flash and number of flash blocks reserved for the flash region corresponding to the 'target_nv_id' field in the command buffer. This information is then written to the corresponding fields in the command buffer. Since detecting the flash chip still might result in accesses to it, make sure that it's available for use and not currently used by an OS driver. Since this code is inside the SMI handler, we don't have to worry about this code to be interrupted, so we don't need to set some bit to tell other code that we're currently using the SPI controller in the SMI handler. This patch is a modified version of parts of CB:65523. Document #55758 Rev. 2.04 was used as a reference. Test=When selecting SOC_AMD_COMMON_BLOCK_PSP_SMI, Mandolin still builds Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Signed-off-by: Ritul Guru <ritul.bits@gmail.com> Change-Id: I19041a27a9e8f901d42c3f60af834df625455ea6 Reviewed-on: https://review.coreboot.org/c/coreboot/+/83776 Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/tigerlake/soundwire.c')
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