- Bump the LinuxBIOS major version

- Rename chip_config chip_operations throughout the tree
- Fix Config.lb on most of the Opteron Ports
- Fix the amd 8000 chipset support for setting the subsystem vendor and device ids
- Add detection of devices that are on the motherboard (i.e. In Config.lb)
- Baby step in getting the resource limit handling correct, Ignore fixed resources
- Only call enable_childrens_resources on devices we know will have children
  For some busses like i2c it is non-sense and we don't want it.
- Set the resource limits for pnp devices resources.
- Improve the resource size detection for pnp devices.
- Added a configuration register to amd8111_ide.c so we can enable/disable individual ide channels
- Added a header file to hold the prototype of isa_dma_init
- Fixed most of the superio chips so the should work now, the via superio pci device is the exception.
- The code compiles and runs so it is time for me to go to bed.


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1698 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 26 insertions, 5 deletions

diff --git a/src/devices/pnp_device.c b/src/devices/pnp_device.c
index 70286ad..cde571f 100644
--- a/src/devices/pnp_device.c
+++ b/src/devices/pnp_device.c
@@ -132,7 +132,7 @@ struct device_operations pnp_ops = {
 static void pnp_get_ioresource(device_t dev, unsigned index, struct io_info *info)
 {
 	struct resource *resource;
-	uint32_t size;
+	unsigned moving, gran, step;
 
 	resource = new_resource(dev, index);
 	
@@ -140,11 +140,32 @@ static void pnp_get_ioresource(device_t dev, unsigned index, struct io_info *inf
 	resource->limit = 0xffff;
 	resource->flags |= IORESOURCE_IO;
 	
+	/* Get the resource size */
+	moving = info->mask;
+	gran = 15;
+	step = 1 << gran;
+	/* Find the first bit that moves */
+	while((moving & step) == 0) {
+		gran--;
+		step >>= 1;
+	}
+	/* Now find the first bit that does not move */
+	while((moving & step) != 0) {
+		gran--;
+		step >>= 1;
+	}
+	/* Of the moving bits the last bit in the first group,
+	 * tells us the size of this resource.
+	 */
+	if ((moving & step) == 0) {
+		gran++;
+		step <<= 1;
+	}
 	/* Set the resource size and alignment */
-	size = (0xffff & info->mask);
-	resource->size  = (~(size | 0xfffff800) + 1);
-	resource->align = log2(resource->size);
-	resource->gran  = resource->align;
+	resource->gran  = gran;
+	resource->align = gran;
+	resource->limit = info->mask | (step - 1);
+	resource->size  = 1 << gran;
 }
 
 static void get_resources(device_t dev, struct pnp_info *info)