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authorJoseph Smith <joe@settoplinux.org>2009-05-02 21:30:57 +0000
committerJoseph Smith <joe@smittys.pointclark.net>2009-05-02 21:30:57 +0000
commit4f0154c937fbf819e34ffbb3a71dc246fb6079c1 (patch)
tree13104ce4d780051378950d9fe30eb6b8cd27ecd6 /src/southbridge/intel
parent88e71e88597d939972267cdb00aca3cc61f5e171 (diff)
downloadcoreboot-4f0154c937fbf819e34ffbb3a71dc246fb6079c1.tar.xz
Assign PIRQs in mainboard Config.lb or use the default ones listed in i82801xx_lpc.c.
Signed-off-by: Joseph Smith <joe@settoplinux.org> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4251 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/southbridge/intel')
-rw-r--r--src/southbridge/intel/i82801xx/chip.h12
-rw-r--r--src/southbridge/intel/i82801xx/i82801xx_lpc.c67
2 files changed, 69 insertions, 10 deletions
diff --git a/src/southbridge/intel/i82801xx/chip.h b/src/southbridge/intel/i82801xx/chip.h
index 309aa27ce6..d86c07e8e0 100644
--- a/src/southbridge/intel/i82801xx/chip.h
+++ b/src/southbridge/intel/i82801xx/chip.h
@@ -31,6 +31,18 @@
#define SOUTHBRIDGE_INTEL_I82801XX_CHIP_H
struct southbridge_intel_i82801xx_config {
+ /**
+ * Interrupt Routing configuration
+ * If bit7 is 1, the interrupt is disabled.
+ */
+ uint8_t pirqa_routing;
+ uint8_t pirqb_routing;
+ uint8_t pirqc_routing;
+ uint8_t pirqd_routing;
+ uint8_t pirqe_routing;
+ uint8_t pirqf_routing;
+ uint8_t pirqg_routing;
+ uint8_t pirqh_routing;
};
extern struct chip_operations southbridge_intel_i82801xx_ops;
diff --git a/src/southbridge/intel/i82801xx/i82801xx_lpc.c b/src/southbridge/intel/i82801xx/i82801xx_lpc.c
index c9a00a88cd..cdc809f3bc 100644
--- a/src/southbridge/intel/i82801xx/i82801xx_lpc.c
+++ b/src/southbridge/intel/i82801xx/i82801xx_lpc.c
@@ -36,6 +36,8 @@
#define NMI_OFF 0
+typedef struct southbridge_intel_i82801xx_config config_t;
+
/* PIRQ[n]_ROUT[3:0] - PIRQ Routing Control
* 0x00 - 0000 = Reserved
* 0x01 - 0001 = Reserved
@@ -66,7 +68,11 @@
#define PIRQG 0x0A
#define PIRQH 0x0B
-/* Use 0x0ef8 for a bitmap to cover all these IRQ's. */
+/*
+ * Use 0x0ef8 for a bitmap to cover all these IRQ's.
+ * Use the defined IRQ values above or set mainboard
+ * specific IRQ values in your mainboards Config.lb.
+*/
void i82801xx_enable_apic(struct device *dev)
{
@@ -114,18 +120,59 @@ void i82801xx_enable_serial_irqs(struct device *dev)
static void i82801xx_pirq_init(device_t dev, uint16_t ich_model)
{
- /* Route PIRQA - PIRQD. */
- pci_write_config8(dev, PIRQA_ROUT, PIRQA);
- pci_write_config8(dev, PIRQB_ROUT, PIRQB);
- pci_write_config8(dev, PIRQC_ROUT, PIRQC);
- pci_write_config8(dev, PIRQD_ROUT, PIRQD);
+ /* Get the chip configuration */
+ config_t *config = dev->chip_info;
+
+ if (config->pirqa_routing) {
+ pci_write_config8(dev, PIRQA_ROUT, config->pirqa_routing);
+ } else {
+ pci_write_config8(dev, PIRQA_ROUT, PIRQA);
+ }
+
+ if (config->pirqb_routing) {
+ pci_write_config8(dev, PIRQB_ROUT, config->pirqb_routing);
+ } else {
+ pci_write_config8(dev, PIRQB_ROUT, PIRQB);
+ }
+
+ if (config->pirqc_routing) {
+ pci_write_config8(dev, PIRQC_ROUT, config->pirqc_routing);
+ } else {
+ pci_write_config8(dev, PIRQC_ROUT, PIRQC);
+ }
+
+ if (config->pirqd_routing) {
+ pci_write_config8(dev, PIRQD_ROUT, config->pirqd_routing);
+ } else {
+ pci_write_config8(dev, PIRQD_ROUT, PIRQD);
+ }
/* Route PIRQE - PIRQH (for ICH2-ICH9). */
if (ich_model >= 0x2440) {
- pci_write_config8(dev, PIRQE_ROUT, PIRQE);
- pci_write_config8(dev, PIRQF_ROUT, PIRQF);
- pci_write_config8(dev, PIRQG_ROUT, PIRQG);
- pci_write_config8(dev, PIRQH_ROUT, PIRQH);
+
+ if (config->pirqe_routing) {
+ pci_write_config8(dev, PIRQE_ROUT, config->pirqe_routing);
+ } else {
+ pci_write_config8(dev, PIRQE_ROUT, PIRQE);
+ }
+
+ if (config->pirqf_routing) {
+ pci_write_config8(dev, PIRQF_ROUT, config->pirqf_routing);
+ } else {
+ pci_write_config8(dev, PIRQF_ROUT, PIRQF);
+ }
+
+ if (config->pirqg_routing) {
+ pci_write_config8(dev, PIRQG_ROUT, config->pirqg_routing);
+ } else {
+ pci_write_config8(dev, PIRQG_ROUT, PIRQG);
+ }
+
+ if (config->pirqh_routing) {
+ pci_write_config8(dev, PIRQH_ROUT, config->pirqh_routing);
+ } else {
+ pci_write_config8(dev, PIRQH_ROUT, PIRQH);
+ }
}
}