diff options
| author | Nico Huber <nico.h@gmx.de> | 2022-05-14 15:57:31 +0200 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-06-24 16:28:33 +0000 |
| commit | 2a167ffbbfc82e552c8804069986c1091f747105 (patch) | |
| tree | 4d649d3090c4a1acafb970049c2c901d2396e71e /src/northbridge | |
| parent | ffd75c29365f1493dc0ef9abdd797653dfb56be6 (diff) | |
nb/intel/gm45/acpi: Fix max PCI bus number
Commit 0cc56a2848 (nb/intel/gm45/dsdt: Fix number of PCI busses) derives
the maximum PCI bus number at runtime. However, IASL complains about the
initial 0 in the resource template, which rendered the PB00 definition
self-contradictory at build time (maximum was lower than minimum +
length - 1).
Let's return to the old default values (min: 0, max: 255, length: 256)
and adapt max and length at runtime. Also fix some surrounding whites-
pace.
NB. The issue wasn't detected before merging commit 0cc56a2848 because
of broken IASL versions that can't count errors.
Change-Id: I359d357f276feda8fe04383080d51dc492c3f2e8
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64347
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Stefan Ott <coreboot@desire.ch>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/northbridge')
| -rw-r--r-- | src/northbridge/intel/gm45/acpi/hostbridge.asl | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/src/northbridge/intel/gm45/acpi/hostbridge.asl b/src/northbridge/intel/gm45/acpi/hostbridge.asl index 7c8600341a..0047e19b2a 100644 --- a/src/northbridge/intel/gm45/acpi/hostbridge.asl +++ b/src/northbridge/intel/gm45/acpi/hostbridge.asl @@ -83,10 +83,9 @@ Device (MCHC) Name (MCRS, ResourceTemplate() { - /* Bus Numbers. Highest bus gets updated later */ + /* Bus Numbers. Highest bus and length get updated later */ WordBusNumber (ResourceProducer, MinFixed, MaxFixed, PosDecode, - 0x0000, 0x0000, 0x0000, 0x0000, - CONFIG_ECAM_MMCONF_BUS_NUMBER,,, PB00) + 0, 0, 255, 0, 256,,, PB00) /* IO Region 0 */ DWordIO (ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange, @@ -208,10 +207,11 @@ External (A4GB, IntObj) /* Current Resource Settings */ Method (_CRS, 0, Serialized) { - /* Set highest PCI bus */ - CreateWordField(MCRS, ^PB00._MAX, BMAX) - CreateWordField(MCRS, ^PB00._LEN, BLEN) - BMAX = BLEN - 1 + /* Set highest PCI bus and length */ + CreateWordField(MCRS, ^PB00._MAX, BMAX) + CreateWordField(MCRS, ^PB00._LEN, BLEN) + BLEN = CONFIG_ECAM_MMCONF_BUS_NUMBER + BMAX = BLEN - 1 /* Find PCI resource area in MCRS */ CreateDwordField(MCRS, ^PM01._MIN, PMIN) |