diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-11-11 17:22:23 +0200 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2015-02-23 21:33:55 +0100 |
| commit | 0b87bb77261fc106d6473eba25202d719fd7b13d (patch) | |
| tree | 25550bbf6df880ed0bb92f6ed26c5db425954d02 /src | |
| parent | a6c7ae70140450205cda6226e1905dfecb6cfabf (diff) | |
AMD cimx/sb800: Disconnect PCI bridge 0:14.4 from pins
Some GPIO pins are shared with PCI bridge 0:14.4.
As our PCI subsystem currently does not configure PCI bridges that are
marked disabled, but remain visible in the hardware, simply setting 0:14.4
disabled in the devicetree does not work here yet.
Change-Id: Ib9652e12a888e1d797d879d97737ba4101b7029a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8495
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Nicolas Reinecke <nr@das-labor.org>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src')
| -rw-r--r-- | src/southbridge/amd/cimx/sb800/chip.h | 1 | ||||
| -rw-r--r-- | src/southbridge/amd/cimx/sb800/late.c | 2 |
2 files changed, 2 insertions, 1 deletions
diff --git a/src/southbridge/amd/cimx/sb800/chip.h b/src/southbridge/amd/cimx/sb800/chip.h index 2c2ce1ec13..f0ce0751c8 100644 --- a/src/southbridge/amd/cimx/sb800/chip.h +++ b/src/southbridge/amd/cimx/sb800/chip.h @@ -35,6 +35,7 @@ struct southbridge_amd_cimx_sb800_config { u32 boot_switch_sata_ide : 1; + u32 disconnect_pcib : 1; u8 gpp_configuration; /* diff --git a/src/southbridge/amd/cimx/sb800/late.c b/src/southbridge/amd/cimx/sb800/late.c index e01793607b..2125027083 100644 --- a/src/southbridge/amd/cimx/sb800/late.c +++ b/src/southbridge/amd/cimx/sb800/late.c @@ -401,7 +401,7 @@ static void sb800_enable(device_t dev) * 'PCIDisable' set to 1 to disable P2P bridge and enable PCI interface pins * to function as GPIO {GPIO 35:0}. */ - if (dev->enabled) + if (!sb_chip->disconnect_pcib && dev->enabled) RWMEM(ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REGEA, AccWidthUint8, ~BIT0, 0); else RWMEM(ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REGEA, AccWidthUint8, ~BIT0, BIT0); |