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fix and complaint. 

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1163 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Ronald G. Minnich 2003-09-30 18:18:22 +00:00
parent 00359e91ec
commit 303349a9d2
2 changed files with 31 additions and 1 deletions
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7
src/southbridge/via/vt8231/chip.h
View File

@ -4,6 +4,13 @@
extern struct chip_control southbridge_via_vt8231_control;
struct southbridge_via_vt8231_config {
/* PCI function enables */
/* i.e. so that pci scan bus will find them. */
/* I am putting in IDE as an example but obviously this needs
* to be more complete!
*/
int enable_ide;
/* enables of functions of devices */
int enable_usb;
int enable_native_ide;
int enable_com_ports;

25
src/southbridge/via/vt8231/vt8231.c
View File

@ -134,6 +134,24 @@ static void ethernet_fixup()
}
/* we need to do things in this function so that PCI scan will find
* them. One problem here is that we can't use ANY of the new device
* stuff. This work here precedes all that.
* Fundamental problem with linuxbios V2 architecture.
* You can't do pci control in the C code without having done a PCI scan.
* But in some cases you need to to pci control in the c code before doing
* a PCI scan. But you can't use arch/romcc_io.h (the code you need) because
* that has functions with the same name but different type signatures
* (e.g. device_t). This needs to get fixed. We need low-level pci scans
* in the C code.
*/
static void vt8231_pci_enable(struct southbridge_via_vt8231_config *conf) {
unsigned long busdevfn = 0x8000;
if (conf->enable_ide) {
printk_spew("%s: enabling IDE function\n", __FUNCTION__);
}
}
static void vt8231_init(struct southbridge_via_vt8231_config *conf)
{
unsigned char enables;
@ -144,7 +162,7 @@ static void vt8231_init(struct southbridge_via_vt8231_config *conf)
// to do: use the pcibios_find function here, instead of
// hard coding the devfn.
// done - kevinh/Ispiri
printk_spew("vt8231 init\n");
/* Base 8231 controller */
dev0 = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, 0);
/* IDE controller */
@ -262,6 +280,7 @@ static void vt8231_init(struct southbridge_via_vt8231_config *conf)
// Run the IDE controller in 'compatiblity mode - i.e. don't use PCI
// interrupts. Using PCI ints confuses linux for some reason.
printk_info("%s: enabling native IDE addresses\n", __FUNCTION__);
enables = pci_read_config8(dev1, 0x42);
printk_debug("enables in reg 0x42 0x%x\n", enables);
enables &= ~0xc0; // compatability mode
@ -352,6 +371,10 @@ southbridge_init(struct chip *chip, enum chip_pass pass)
(struct southbridge_via_vt8231_config *)chip->chip_info;
switch (pass) {
case CONF_PASS_PRE_PCI:
vt8231_pci_enable(conf);
break;
case CONF_PASS_POST_PCI:
vt8231_init(conf);
break;