diff options
| author | Sean Rhodes <sean@starlabs.systems> | 2022-07-28 21:55:35 +0100 |
|---|---|---|
| committer | Sean Rhodes <sean@starlabs.systems> | 2022-12-22 21:16:13 +0000 |
| commit | a49cd32da028d60e52d9e8078514c9a09a005710 (patch) | |
| tree | a0ee0293c42ef0bae7286c71b76cbc25a419badd /src/soc/intel | |
| parent | 6a803bfae6e5a05becce68935957f25fb37181ff (diff) | |
soc/intel/apollolake/acpi: Add PDRC for PCIX and ACPI to allow use of MMCONF
The current implementation of the MCRS had several issues with BARs
and MMCONF not being available:
[ 0.156231] pci 0000:00:02.0: BAR 2: assigned to efifb
[ 0.165302] pci 0000:00:18.2: can't claim BAR 0 [mem 0xddffc000-0xddffcfff 64bit]: no compatible bridge window
[ 0.192896] pci 0000:00:18.2: BAR 0: assigned [mem 0x280000000-0x280000fff 64bit]
...
[ 0.138300] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xe0000000-0xefffffff] (base 0xe0000000)
[ 0.138300] PCI: not using MMCONFIG
[ 0.148014] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xe0000000-0xefffffff] (base 0xe0000000)
[ 0.149674] [Firmware Info]: PCI: MMCONFIG at [mem 0xe0000000-0xefffffff] not reserved in ACPI motherboard resources
[ 0.149679] PCI: not using MMCONFIG
[ 0.155052] acpi PNP0A08:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge.
This new MCRS, tested on the Star Lite Mk IV, resolves these issues:
[ 0.158786] pci 0000:00:02.0: BAR 2: assigned to efifb
[ 0.197391] pci 0000:00:1f.1: BAR 0: assigned [mem 0x280000000-0x2800000ff 64bit]
...
[ 0.138460] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem
0xe0000000-0xefffffff] (base 0xe0000000)
[ 0.138460] PCI: not using MMCONFIG
[ 0.150889] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem
0xe0000000-0xefffffff] (base 0xe0000000)
[ 0.152548] PCI: MMCONFIG at [mem 0xe0000000-0xefffffff] reserved in ACPI motherboard resources
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: Ib6fc58efc9aadb5828251e0260622dac7ea3ef2b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66244
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Diffstat (limited to 'src/soc/intel')
| -rw-r--r-- | src/soc/intel/apollolake/acpi/northbridge.asl | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/acpi/northbridge.asl b/src/soc/intel/apollolake/acpi/northbridge.asl index 2230433686..b1ed3e56b4 100644 --- a/src/soc/intel/apollolake/acpi/northbridge.asl +++ b/src/soc/intel/apollolake/acpi/northbridge.asl @@ -122,5 +122,27 @@ Method (_CRS, 0, Serialized) Return (MCRS) } +Device (PDRC) /* PCI Device Resource Consumption */ +{ + Name (_HID, EisaId("PNP0C02")) + Name (_UID, 1) + + Method (_CRS, 0, Serialized) + { + Name (BUF0, ResourceTemplate () + { + /* PCI Express BAR */ + Memory32Fixed (ReadWrite, + CONFIG_ECAM_MMCONF_BASE_ADDRESS, + CONFIG_ECAM_MMCONF_LENGTH, PCIX) + + /* Local APIC range (0xfee0_0000 to 0xfeef_ffff) */ + Memory32Fixed (ReadOnly, 0x0fee00000, 0x00010000, LIOH) + }) + + Return (BUF0) + } +} + /* GFX 00:02.0 */ #include <drivers/intel/gma/acpi/gfx.asl> |