diff options
| author | Joseph Smith <joe@settoplinux.org> | 2009-05-02 21:30:57 +0000 |
|---|---|---|
| committer | Joseph Smith <joe@smittys.pointclark.net> | 2009-05-02 21:30:57 +0000 |
| commit | 4f0154c937fbf819e34ffbb3a71dc246fb6079c1 (patch) | |
| tree | 13104ce4d780051378950d9fe30eb6b8cd27ecd6 /src/southbridge/intel/i82801xx | |
| parent | 88e71e88597d939972267cdb00aca3cc61f5e171 (diff) | |
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/i82801xx')
| -rw-r--r-- | src/southbridge/intel/i82801xx/chip.h | 12 | ||||
| -rw-r--r-- | src/southbridge/intel/i82801xx/i82801xx_lpc.c | 67 |
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); + } } } |