diff options
| author | Reto Buerki <reet@codelabs.ch> | 2024-01-11 09:26:55 +0100 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2024-01-16 23:57:10 +0000 |
| commit | caf80848bbd707c75a4c7cae2d8ef8ace04afdbf (patch) | |
| tree | c93d4a225205e65a1bf0f215dfd2e0aaf0056aa0 /src/soc/intel | |
| parent | 3b5b66d82954e026a91a1eff833fa7f652fed629 (diff) | |
soc/intel/apollolake: Fix PCI memory resource alloc
There is a mismatch in how PCI memory resources are allocated on Apollo
Lake with the current configuration. While the ACPI code expects
resources to be below PCR_BASE_ADDRESS (i.e. PMAX), the coreboot C code
allocates them above, leading to the following error messages on Linux:
pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
pci_bus 0000:00: root bus resource [mem 0x80000000-0xd0000000 window]
pci_bus 0000:00: root bus resource [mem 0x280000000-0x7fffffffff window]
pci 0000:00:13.1: can't claim BAR 14 [mem 0xdeb00000-0xdebfffff]: no compatible bridge window
pci 0000:00:13.1: can't claim BAR 15 [mem 0xdec00000-0xdecfffff 64bit pref]: no compatible bridge window
pci 0000:00:13.1: BAR 14: assigned [mem 0x80000000-0x800fffff]
pci 0000:00:13.1: BAR 15: assigned [mem 0x281300000-0x2813fffff 64bit pref]
Tested on up/squared with Linux kernel version 6.1.0.
Fix this by setting the DOMAIN_RESOURCE_32BIT_LIMIT to PCR_BASE_ADDRESS,
and by moving the UART base address into the expected range.
Thanks to Nico Huber for the help in writing this patch.
Change-Id: I3a805beb47ab4d19cf8dfce0942485e7982861b1
Signed-off-by: Reto Buerki <reet@codelabs.ch>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79957
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel')
| -rw-r--r-- | src/soc/intel/apollolake/Kconfig | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/soc/intel/apollolake/Kconfig b/src/soc/intel/apollolake/Kconfig index f8de381a87..b22382b18e 100644 --- a/src/soc/intel/apollolake/Kconfig +++ b/src/soc/intel/apollolake/Kconfig @@ -338,7 +338,7 @@ config CPU_BCLK_MHZ config CONSOLE_UART_BASE_ADDRESS hex - default 0xddffc000 + default 0xcdffc000 depends on INTEL_LPSS_UART_FOR_CONSOLE # M and N divisor values for clock frequency configuration. @@ -396,4 +396,7 @@ config HAVE_PAM0_REGISTER bool default n +config DOMAIN_RESOURCE_32BIT_LIMIT + default PCR_BASE_ADDRESS + endif |