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authorMyles Watson <mylesgw@gmail.com>2009-07-02 18:56:24 +0000
committerMyles Watson <mylesgw@gmail.com>2009-07-02 18:56:24 +0000
commit29cc9eda2021a87396ef31a6fc81daff6fd1be7a (patch)
treed3dfa07ca85547c77c5d07825fc8afcc19489076 /src/southbridge/via
parent2468331952bae0abdc4d76dbe6cf26f05b7825e5 (diff)
downloadcoreboot-29cc9eda2021a87396ef31a6fc81daff6fd1be7a.tar.xz
Move the v3 resource allocator to v2.
Major changes: 1. Separate resource allocation into: A. Read Resources B. Avoid fixed resources (constrain limits) C. Allocate resources D. Set resources Usage notes: Resources which have IORESOURCE_FIXED set in the flags constrain the placement of other resources. All fixed resources will end up outside (above or below) the allocated resources. Domains usually start with base = 0 and limit = 2^address_bits - 1. I've added an IOAPIC to all platforms so that the old limit of 0xfec00000 is still there for resources. Some platforms may want to change that, but I didn't want to break anyone's board. Resources are allocated in a single block for memory and another for I/O. Currently the resource allocator doesn't support holes. Signed-off-by: Myles Watson <mylesgw@gmail.com> Acked-by: Ronald G. Minnich <rminnich@gmail.com> Acked-by: Patrick Georgi <patrick.georgi@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4394 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/southbridge/via')
-rw-r--r--src/southbridge/via/vt8231/vt8231_lpc.c20
-rw-r--r--src/southbridge/via/vt8235/vt8235_lpc.c17
2 files changed, 31 insertions, 6 deletions
diff --git a/src/southbridge/via/vt8231/vt8231_lpc.c b/src/southbridge/via/vt8231/vt8231_lpc.c
index 4b906359b0..fb2f29be61 100644
--- a/src/southbridge/via/vt8231/vt8231_lpc.c
+++ b/src/southbridge/via/vt8231/vt8231_lpc.c
@@ -131,6 +131,24 @@ static void vt8231_init(struct device *dev)
rtc_init(0);
}
+void vt8231_read_resources(device_t dev)
+{
+ struct resource *res;
+
+ pci_dev_read_resources(dev);
+
+ res = new_resource(dev, 1);
+ res->base = 0x0UL;
+ res->size = 0x400UL;
+ res->limit = 0xffffUL;
+ res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+
+ res = new_resource(dev, 3); /* IOAPIC */
+ res->base = 0xfec00000;
+ res->size = 0x00001000;
+ res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+}
+
static void southbridge_init(struct device *dev)
{
vt8231_init(dev);
@@ -138,7 +156,7 @@ static void southbridge_init(struct device *dev)
}
static struct device_operations vt8231_lpc_ops = {
- .read_resources = pci_dev_read_resources,
+ .read_resources = vt8231_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = &southbridge_init,
diff --git a/src/southbridge/via/vt8235/vt8235_lpc.c b/src/southbridge/via/vt8235/vt8235_lpc.c
index 521271d1a8..67f602b9b4 100644
--- a/src/southbridge/via/vt8235/vt8235_lpc.c
+++ b/src/southbridge/via/vt8235/vt8235_lpc.c
@@ -219,15 +219,22 @@ static void vt8235_init(struct device *dev)
device has a resource to set - so set a dummy one */
void vt8235_read_resources(device_t dev)
{
+ struct resource *res;
- struct resource *resource;
pci_dev_read_resources(dev);
- resource = new_resource(dev, 1);
- resource->flags |= IORESOURCE_FIXED | IORESOURCE_ASSIGNED | IORESOURCE_IO | IORESOURCE_STORED;
- resource->size = 2;
- resource->base = 0x2e;
+ res = new_resource(dev, 1);
+ res->base = 0x0UL;
+ res->size = 0x400UL;
+ res->limit = 0xffffUL;
+ res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+
+ res = new_resource(dev, 3); /* IOAPIC */
+ res->base = 0xfec00000;
+ res->size = 0x00001000;
+ res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
}
+
void vt8235_set_resources(device_t dev)
{
struct resource *resource;