summaryrefslogtreecommitdiff
path: root/src/cpu/amd/sc520
diff options
context:
space:
mode:
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/cpu/amd/sc520
parent2468331952bae0abdc4d76dbe6cf26f05b7825e5 (diff)
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/cpu/amd/sc520')
-rw-r--r--src/cpu/amd/sc520/sc520.c49
1 files changed, 20 insertions, 29 deletions
diff --git a/src/cpu/amd/sc520/sc520.c b/src/cpu/amd/sc520/sc520.c
index 90f1e0b049..8b21545d48 100644
--- a/src/cpu/amd/sc520/sc520.c
+++ b/src/cpu/amd/sc520/sc520.c
@@ -62,9 +62,27 @@ void sc520_enable_resources(struct device *dev) {
}
+static void sc520_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 struct device_operations cpu_operations = {
- .read_resources = pci_dev_read_resources,
+ .read_resources = sc520_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = sc520_enable_resources,
.init = cpu_init,
@@ -78,25 +96,6 @@ static const struct pci_driver cpu_driver __pci_driver = {
.device = 0x3000
};
-
-
-#define BRIDGE_IO_MASK (IORESOURCE_IO | IORESOURCE_MEM)
-
-static void pci_domain_read_resources(device_t dev)
-{
- struct resource *resource;
- printk_spew("%s\n", __func__);
- /* Initialize the system wide io space constraints */
- resource = new_resource(dev, IOINDEX_SUBTRACTIVE(0,0));
- resource->limit = 0xffffUL;
- resource->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
-
- /* Initialize the system wide memory resources constraints */
- resource = new_resource(dev, IOINDEX_SUBTRACTIVE(1,0));
- resource->limit = 0xffffffffULL;
- resource->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
-}
-
static void ram_resource(device_t dev, unsigned long index,
unsigned long basek, unsigned long sizek)
{
@@ -184,14 +183,6 @@ static void pci_domain_set_resources(device_t dev)
assign_resources(&dev->link[0]);
}
-static unsigned int pci_domain_scan_bus(device_t dev, unsigned int max)
-{
- printk_spew("%s\n", __func__);
- max = pci_scan_bus(&dev->link[0], PCI_DEVFN(0, 0), 0xff, max);
- return max;
-}
-
-
#if 0
void sc520_enable_resources(device_t dev) {
@@ -219,7 +210,7 @@ static struct device_operations pci_domain_ops = {
* If enable_resources is set to the generic enable_resources
* function the whole thing will hang in an endless loop on
* the ts5300. If this is really needed on another platform,
- * something is conceptionally wrong.
+ * something is conceptually wrong.
*/
.enable_resources = 0, //enable_resources,
.init = 0,