GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

i3100: configure pci irqs 

without it, you can't boot from PCI devices like scsi controllers
which require an interrupt set. So preconfigure all pci devices.

Change-Id: I2cd781227701e8363d83bd90e0e36994359fc194
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/603
Tested-by: build bot (Jenkins)
This commit is contained in:
Sven Schnelle 2012-02-01 11:47:29 +01:00
parent 317ca0d751
commit b06bd8d954
1 changed files with 42 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
src/southbridge/intel/i3100/lpc.c
View File

@ -28,6 +28,7 @@
#include <device/pci_ops.h>
#include <pc80/mc146818rtc.h>
#include <pc80/isa-dma.h>
#include <pc80/i8259.h>
#include <arch/io.h>
#include <arch/ioapic.h>
#include "i3100.h"
@ -196,17 +197,51 @@ static void set_i3100_gpio_inv(
static void i3100_pirq_init(device_t dev)
{
device_t irq_dev;
config_t *config;
/* Get the chip configuration */
config = dev->chip_info;
if(config->pirq_a_d) {
if(config->pirq_a_d)
pci_write_config32(dev, 0x60, config->pirq_a_d);
}
if(config->pirq_e_h) {
if(config->pirq_e_h)
pci_write_config32(dev, 0x68, config->pirq_e_h);
}
for(irq_dev = all_devices; irq_dev; irq_dev = irq_dev->next) {
u8 int_pin=0, int_line=0;
if (!irq_dev->enabled || irq_dev->path.type != DEVICE_PATH_PCI)
continue;
int_pin = pci_read_config8(irq_dev, PCI_INTERRUPT_PIN);
switch (int_pin) {
case 1: /* INTA# */
int_line = config->pirq_a_d & 0xff;
break;
case 2: /* INTB# */
int_line = (config->pirq_a_d >> 8) & 0xff;
break;
case 3: /* INTC# */
int_line = (config->pirq_a_d >> 16) & 0xff;
break;
case 4: /* INTD# */
int_line = (config->pirq_a_d >> 24) & 0xff;
break;
}
if (!int_line)
continue;
printk(BIOS_DEBUG, "%s: irq pin %d, irq line %d\n", dev_path(irq_dev), int_pin, int_line);
pci_write_config8(irq_dev, PCI_INTERRUPT_LINE, int_line);
}
}
static void i3100_power_options(device_t dev) {
@ -343,6 +378,9 @@ static void lpc_init(struct device *dev)
/* Initialize isa dma */
isa_dma_init();
setup_i8259();
i8259_configure_irq_trigger(9, 1);
}
static void i3100_lpc_read_resources(device_t dev)