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path: root/src/drivers/genesyslogic/gl9755
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2022-03-07src: Make PCI ID define names shorterFelix Singer
Shorten define names containing PCI_{DEVICE,VENDOR}_ID_ with PCI_{DID,VID}_ using the commands below, which also take care of some spacing issues. An additional clean up of pci_ids.h is done in CB:61531. Used commands: * find -type f -exec sed -i 's/PCI_\([DV]\)\(EVICE\|ENDOR\)_ID_\([_0-9A-Za-z]\{2\}\([_0-9A-Za-z]\{8\}\)*[_0-9A-Za-z]\{0,5\}\)\t/PCI_\1ID_\3\t\t/g' * find -type f -exec sed -i 's/PCI_\([DV]\)\(EVICE\|ENDOR\)_ID_\([_0-9A-Za-z]*\)/PCI_\1ID_\3/g' Change-Id: If9027700f53b6d0d3964c26a41a1f9b8f62be178 Signed-off-by: Felix Singer <felixsinger@posteo.net> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39331 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
2021-09-24drivers/genesyslogic/gl9755: Disable ASPM L0s supportBen Chuang
When the entry delay of L0s is less than the entry delay of L1, GL9755 will enter L0s state first. When it exits from L0s state, the time of L1 entry will be reset. Therefore, the conditions for entering L1 state cannot be met. In order to enter L1 state, L0s needs to be disabled. BUG=b:195611000 TEST=Verify GL9755 enters L1 by observing CLKREQ# de-asserts. Signed-off-by: Ben Chuang <benchuanggli@gmail.com> Change-Id: If121b5cb534eb32bac8992683c3f0eee8946acec Reviewed-on: https://review.coreboot.org/c/coreboot/+/57632 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@mailbox.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2021-05-05drivers/genesyslogic/gl9755: Disable debug mode to enable circuit protectionsBen Chuang
In order for short circuit protection and over current protection to work, the debug mode needs to be turned off. BUG=b:185749961 TEST=build and test Signed-off-by: Ben Chuang <benchuanggli@gmail.com> Change-Id: Iacfa3c668a52d1bae15fe82f1c614d0ebd93a957 Reviewed-on: https://review.coreboot.org/c/coreboot/+/51000 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
2020-12-10drivers/genesyslogic/gl9755: Adjust L1 exit latency to enable ASPMDuncan Laurie
Configure the CFG2 register to set the latency to <64us in order to ensure the L1 exit latency is consistent across devices and that L1 ASPM is always enabled. This moves the setup code from device init to device enable so it executes before coreboot does ASPM configuration, and removes the call to pci_dev_init() as that is just for VGA Option ROMs. BUG=b:173207454 TEST=Verify the device and link capability and control for L1: DevCap: Latency L1 <64us LnkCap: Latency L1 <64us LnkCtl: ASPM L1 Enabled Signed-off-by: Duncan Laurie <dlaurie@google.com> Change-Id: Ie2b85a6697f164fbe4f84d8cd5acb2b5911ca7a9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/47682 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2020-09-18drivers/genesyslogic/gl9755: Add driver for Genesys Logic GL9755Ben Chuang
The device is a PCIe Gen2 to SD 4.0 card reader controller to be used in the Chromebook. The datasheet name is GL9755S and the revision is 05. The patch sets LTR value. Signed-off-by: Ben Chuang <benchuanggli@gmail.com> Change-Id: I16048dde348be248c748d50ca4a8a62c8a781430 Reviewed-on: https://review.coreboot.org/c/coreboot/+/45062 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>