coreboot.git - my copy of coreboot

Age	Commit message (Collapse)	Author
2022-03-29	soc/mediatek: Ensure PERST# deassertion time follows the spec	Jianjun Wang
	According to the PCIe CEM specification, the deassertion of PERST# should occur at least 100ms after the assertion. To ensure the 100ms delay requirement is met, calculate the elapsed time since assertion. If it is smaller than 100ms, do an extra delay. TEST=Build pass and boot up to kernel successfully via SSD on Dojo board, here is the measured PERST# time: [DEBUG] mtk_pcie_domain_enable: 432517 us elapsed since assert PERST# [INFO ] mtk_pcie_domain_enable: PCIe link up success (17 tries) And the SSD information in boot log is as follows: == NVME IDENTIFY CONTROLLER DATA == PCI VID : 0x15b7 PCI SSVID : 0x15b7 SN : 21517J440114 MN : WDC PC SN530 SDBPTPZ-256G-1006 RAB : 0x4 AERL : 0x7 SQES : 0x66 CQES : 0x44 NN : 0x1 Identified NVMe model WDC PC SN530 SDBPTPZ-256G-1006 BUG=b:178565024 BRANCH=cherry Signed-off-by: Jianjun Wang <jianjun.wang@mediatek.com> Change-Id: Ie2b7b6174abdf951af5796ab5ed141c45f32fc71 Reviewed-on: https://review.coreboot.org/c/coreboot/+/62933 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2022-03-16	soc/mediatek: Add chip config for setting PCIe config	Jianjun Wang
	Add chip config for setting PCIe config. TEST=Build pass and boot up to kernel successfully via SSD on Dojo board, here is the SSD information in boot log: == NVME IDENTIFY CONTROLLER DATA == PCI VID : 0x15b7 PCI SSVID : 0x15b7 SN : 21517J440114 MN : WDC PC SN530 SDBPTPZ-256G-1006 RAB : 0x4 AERL : 0x7 SQES : 0x66 CQES : 0x44 NN : 0x1 Identified NVMe model WDC PC SN530 SDBPTPZ-256G-1006 BUG=b:178565024 Signed-off-by: Jianjun Wang <jianjun.wang@mediatek.com> Change-Id: Icff83f2a9f76862065987a74cfcc7e511be80a20 Reviewed-on: https://review.coreboot.org/c/coreboot/+/62791 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2022-03-10	soc/mediatek/mt8195: Add driver to configure PCIe	Jianjun Wang
	Add a new function 'mtk_pcie_pre_init' to assert the PCIe reset at early stage to reduce the impact of 100ms delay. TEST=Build pass and boot up to kernel successfully via SSD on Dojo board, here is the SSD information in boot log: == NVME IDENTIFY CONTROLLER DATA == PCI VID : 0x15b7 PCI SSVID : 0x15b7 SN : 21517J440114 MN : WDC PC SN530 SDBPTPZ-256G-1006 RAB : 0x4 AERL : 0x7 SQES : 0x66 CQES : 0x44 NN : 0x1 Identified NVMe model WDC PC SN530 SDBPTPZ-256G-1006 BUG=b:178565024 Signed-off-by: Jianjun Wang <jianjun.wang@mediatek.com> Change-Id: If6799c53b03a33be91157ea088d829beb4272976 Reviewed-on: https://review.coreboot.org/c/coreboot/+/56792 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>