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drivers/generic/bayhub: Add driver for BayHub BH720

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Add a driver which puts the device into power-saving mode.

BUG=b:73726008
BRANCH=none
TEST=boot and see this message:
BayHub BH720: Power-saving enabled 110103
From linux:
$ iotools pci_read32 2 0 0 0x90
0x00110103

Change-Id: Idbfb114f3782c9386ce9b487c3abdb0afbc4a0d9
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-on: https://review.coreboot.org/25966
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Simon Glass
2018-04-30 14:08:31 -06:00
committed by Martin Roth
parent 51be4ed348
commit 38d875f387
5 changed files with 121 additions and 0 deletions
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src/include/device/pci_ids.h
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@@ -1688,6 +1688,7 @@
#define PCI_DEVICE_ID_O2_6730 0x673a
#define PCI_DEVICE_ID_O2_6832 0x6832
#define PCI_DEVICE_ID_O2_6836 0x6836
#define PCI_DEVICE_ID_O2_BH720 0x8620
#define PCI_VENDOR_ID_3DFX 0x121a
#define PCI_DEVICE_ID_3DFX_VOODOO 0x0001