diff options
| -rw-r--r-- | src/southbridge/via/vt8231/chip.h | 7 | ||||
| -rw-r--r-- | src/southbridge/via/vt8231/vt8231.c | 25 |
2 files changed, 31 insertions, 1 deletions
diff --git a/src/southbridge/via/vt8231/chip.h b/src/southbridge/via/vt8231/chip.h index 5c2d67a78f..0ae3b98c63 100644 --- a/src/southbridge/via/vt8231/chip.h +++ b/src/southbridge/via/vt8231/chip.h @@ -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; diff --git a/src/southbridge/via/vt8231/vt8231.c b/src/southbridge/via/vt8231/vt8231.c index 3e6372c64f..95e2ca573a 100644 --- a/src/southbridge/via/vt8231/vt8231.c +++ b/src/southbridge/via/vt8231/vt8231.c @@ -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; |