From 1cbabb00d9c4fb2f5a8e2e305ae3eb2e6c596897 Mon Sep 17 00:00:00 2001 From: Steven Sherk Date: Fri, 1 Feb 2013 09:22:35 -0700 Subject: [PATCH] Add MMCONF resource to AMD fam15tn PCI_DOMAIN In the process of verifying change it was discovered the MMCONF default base address 0xA0000000 was set below mem_top 0xE0000000 and bus number 256 wasn't a relistic number. The Kconfig defaults were changed to mirror fam15 defaults base address 0xF8000000 and bus number 64. Verified changes with boot to OS. This is a port of the following: commit d5c998be99709c92f200b3b08aed2ca3fee2d519 The coreboot resource allocator doesn't respect resources claimed in the APIC_CLUSTER. Move the MMCONF resource to the PCI_DOMAIN to prevent overlap with PCI devices. original-Change-Id: I8541795f69bbdd9041b390103fb901d37e07eeb9 Signed-off-by: Marc Jones Reviewed-on: http://review.coreboot.org/2260 Tested-by: build bot (Jenkins) Reviewed-by: Dave Frodin Reviewed-by: Marc Jones --- src/northbridge/amd/agesa/family15tn/Kconfig | 4 +-- .../amd/agesa/family15tn/northbridge.c | 31 ++++++++++++------- 2 files changed, 21 insertions(+), 14 deletions(-) diff --git a/src/northbridge/amd/agesa/family15tn/Kconfig b/src/northbridge/amd/agesa/family15tn/Kconfig index b78b01d7bb..5f085932f1 100644 --- a/src/northbridge/amd/agesa/family15tn/Kconfig +++ b/src/northbridge/amd/agesa/family15tn/Kconfig @@ -33,10 +33,10 @@ config HW_MEM_HOLE_SIZE_AUTO_INC config MMCONF_BASE_ADDRESS hex - default 0xA0000000 + default 0xF8000000 config MMCONF_BUS_NUMBER int - default 256 + default 64 endif diff --git a/src/northbridge/amd/agesa/family15tn/northbridge.c b/src/northbridge/amd/agesa/family15tn/northbridge.c index eb63ead133..68b6429342 100644 --- a/src/northbridge/amd/agesa/family15tn/northbridge.c +++ b/src/northbridge/amd/agesa/family15tn/northbridge.c @@ -337,6 +337,19 @@ static void nb_read_resources(device_t dev) amdfam15_link_read_bases(dev, nodeid, link->link_num); } } + + /* + * This MMCONF resource must be reserved in the PCI_DOMAIN. + * It is not honored by the coreboot resource allocator if it is in + * the APIC_CLUSTER. + */ +#if CONFIG_MMCONF_SUPPORT + struct resource *resource = new_resource(dev, 0xc0010058); + resource->base = CONFIG_MMCONF_BASE_ADDRESS; + resource->size = CONFIG_MMCONF_BUS_NUMBER * 4096 * 256; + resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE | + IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED; +#endif } static void set_resource(device_t dev, struct resource *resource, u32 nodeid) @@ -440,6 +453,12 @@ static void nb_set_resources(device_t dev) assign_resources(bus); } } + + /* Print the MMCONF region if it has been reserved. */ + res = find_resource(dev, 0xc0010058); + if (res) { + report_resource_stored(dev, res, " "); + } } static void northbridge_init(struct device *dev) @@ -1077,22 +1096,10 @@ static void cpu_bus_noop(device_t dev) static void cpu_bus_read_resources(device_t dev) { -#if CONFIG_MMCONF_SUPPORT - struct resource *resource = new_resource(dev, 0xc0010058); - resource->base = CONFIG_MMCONF_BASE_ADDRESS; - resource->size = CONFIG_MMCONF_BUS_NUMBER * 4096*256; - resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE | - IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED; -#endif } static void cpu_bus_set_resources(device_t dev) { - struct resource *resource = find_resource(dev, 0xc0010058); - if (resource) { - report_resource_stored(dev, resource, " "); - } - pci_dev_set_resources(dev); } static struct device_operations cpu_bus_ops = {