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enable/disable IDE 0/1 (Primary/Secondary) interfaces on the i82801xx southbridge.

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Signed-off-by: Joseph Smith <joe@settoplinux.org>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4324 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Joseph Smith
2009-05-29 13:45:22 +00:00
committed by Joseph Smith
parent f8a5c6ec02
commit 60f0f1b18f
9 changed files with 34 additions and 9 deletions
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2
src/southbridge/intel/i82801xx/chip.h
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@@ -43,6 +43,8 @@ struct southbridge_intel_i82801xx_config {
uint8_t pirqf_routing;
uint8_t pirqg_routing;
uint8_t pirqh_routing;
uint8_t ide0_enable;
uint8_t ide1_enable;
};
extern struct chip_operations southbridge_intel_i82801xx_ops;

19
src/southbridge/intel/i82801xx/i82801xx_ide.c
View File

@@ -27,29 +27,36 @@
#include <device/pci_ids.h>
#include "i82801xx.h"
typedef struct southbridge_intel_i82801xx_config config_t;
static void ide_init(struct device *dev)
{
/* Get the chip configuration */
config_t *config = dev->chip_info;
/* TODO: Needs to be tested for compatibility with ICH5(R). */
/* Enable IDE devices so the Linux IDE driver will work. */
uint16_t ideTimingConfig;
int enable_primary = 1;
int enable_secondary = 1;
ideTimingConfig = pci_read_config16(dev, IDE_TIM_PRI);
ideTimingConfig &= ~IDE_DECODE_ENABLE;
if (enable_primary) {
if (!config || config->ide0_enable) {
/* Enable primary IDE interface. */
ideTimingConfig |= IDE_DECODE_ENABLE;
printk_debug("IDE0 ");
printk_debug("IDE0: Primary IDE interface is enabled\n");
} else {
printk_info("IDE0: Primary IDE interface is disabled\n");
}
pci_write_config16(dev, IDE_TIM_PRI, ideTimingConfig);
ideTimingConfig = pci_read_config16(dev, IDE_TIM_SEC);
ideTimingConfig &= ~IDE_DECODE_ENABLE;
if (enable_secondary) {
if (!config || config->ide1_enable) {
/* Enable secondary IDE interface. */
ideTimingConfig |= IDE_DECODE_ENABLE;
printk_debug("IDE1 ");
printk_debug("IDE1: Secondary IDE interface is enabled\n");
} else {
printk_info("IDE1: Secondary IDE interface is disabled\n");
}
pci_write_config16(dev, IDE_TIM_SEC, ideTimingConfig);
}