diff options
Diffstat (limited to 'src/mainboard/tyan/s2885/mainboard.c')
| -rw-r--r-- | src/mainboard/tyan/s2885/mainboard.c | 279 |
1 files changed, 255 insertions, 24 deletions
diff --git a/src/mainboard/tyan/s2885/mainboard.c b/src/mainboard/tyan/s2885/mainboard.c index f29f486896..4c3c4a3a14 100644 --- a/src/mainboard/tyan/s2885/mainboard.c +++ b/src/mainboard/tyan/s2885/mainboard.c @@ -6,38 +6,269 @@ #include "../../../northbridge/amd/amdk8/northbridge.h" #include "chip.h" -unsigned long initial_apicid[CONFIG_MAX_CPUS] = +#if 0 +static void fixup_lsi_53c1030(struct device *pdev) { - 0, 1 -}; +// uint8_t byte; + uint16_t word; -static struct device_operations mainboard_operations = { - .read_resources = root_dev_read_resources, - .set_resources = root_dev_set_resources, - .enable_resources = enable_childrens_resources, - .init = 0, - .scan_bus = amdk8_scan_root_bus, - .enable = 0, -}; + byte = 1; + pci_write_config8(pdev, 0xff, byte); + // Set the device id +// pci_write_config_word(pdev, PCI_DEVICE_ID, PCI_DEVICE_ID_LSILOGIC_53C1030); + // Set the subsytem vendor id +// pci_write_config16(pdev, PCI_SUBSYSTEM_VENDOR_ID, PCI_VENDOR_ID_TYAN); + word = 0x10f1; + pci_write_config16(pdev, PCI_SUBSYSTEM_VENDOR_ID, word); + // Set the subsytem id + word = 0x2880; + pci_write_config16(pdev, PCI_SUBSYSTEM_ID, word); + // Disable writes to the device id + byte = 0; + pci_write_config8(pdev, 0xff, byte); + +// lsi_scsi_init(pdev); + +} +#endif + +#if 0 +static void print_pci_regs(struct device *dev) +{ + uint8_t byte; + int i; + + for(i=0;i<256;i++) { + byte = pci_read_config8(dev, i); + + if((i%16)==0) printk_debug("\n%02x:",i); + printk_debug(" %02x",byte); + } + printk_debug("\n"); + +// pci_write_config8(dev, 0x4, byte); -static void enumerate(struct chip *chip) +} +#endif +#if 0 +static void print_mem(void) { - struct chip *child; + unsigned int i; + unsigned int low_1MB = 0xf4107000; + for(i=low_1MB;i<low_1MB+1024;i++) { + if((i%16)==0) printk_debug("\n %08x:",i); + printk_debug(" %02x ",(unsigned char)*((unsigned char *)i)); + } +#if 0 + for(i=low_1MB;i<low_1MB+1024*4;i++) { + if((i%16)==0) printk_debug("\n %08x:",i); + printk_debug(" %c ",(unsigned char)*((unsigned char *)i)); + } +#endif + } +#endif +#if 0 +static void amd8111_enable_rom(void) +{ + uint8_t byte; + struct device *dev; + + /* Enable 4MB rom access at 0xFFC00000 - 0xFFFFFFFF */ + /* Locate the amd8111 */ + dev = dev_find_device(0x1022, 0x7468, 0); - if (chip->control && chip->control->name) { - printk_debug("Enumerating: %s\n", chip->control->name); + /* Set the 4MB enable bit bit */ + byte = pci_read_config8(dev, 0x43); + byte |= 0x80; + pci_write_config8(dev, 0x43, byte); +} +#endif +#if 0 +static void onboard_scsi_fixup(void) +{ + struct device *dev; +#if 1 + unsigned char i,j,k; + + for(i=0;i<=15;i++) { + for(j=0;j<=0x1f;j++) { + for (k=0;k<=6;k++){ + dev = dev_find_slot(i, PCI_DEVFN(j, k)); + if (dev) { + printk_debug("%02x:%02x:%02x",i,j,k); + print_pci_regs(dev); + } + } + } } +#endif + - /* update device operation for dynamic root */ - dev_root.ops = &mainboard_operations; - chip->dev = &dev_root; - chip->bus = 0; - for (child = chip->children; child; child = child->next) { - child->bus = &dev_root.link[0]; +#if 0 + dev = dev_find_device(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1030,0); + if(!dev) { + printk_info("LSI_SCSI_FW_FIXUP: No Device Found!"); + return; } + + lsi_scsi_init(dev); +#endif +// print_mem(); +// amd8111_enable_rom(); +} +#endif +#if 0 +static void vga_fixup(void) { + // we do this right here because: + // - all the hardware is working, and some VGA bioses seem to need + // that + // - we need page 0 below for linuxbios tables. +#if CONFIG_REALMODE_IDT == 1 + printk_debug("INSTALL REAL-MODE IDT\n"); + setup_realmode_idt(); +#endif +#if CONFIG_VGABIOS == 1 + printk_debug("DO THE VGA BIOS\n"); + do_vgabios(0x0600); + post_code(0x93); +#endif + } -struct chip_control mainboard_tyan_s2885_control = { - .enumerate = enumerate, - .name = "Tyan s2885 mainboard ", +#endif + +#if 0 +static void +enable(struct chip *chip, enum chip_pass pass) +{ + + struct mainboard_tyan_s2895_config *conf = + (struct mainboard_tyan_s2895_config *)chip->chip_info; + + switch (pass) { + default: break; +// case CONF_PASS_PRE_CONSOLE: +// case CONF_PASS_PRE_PCI: +// case CONF_PASS_POST_PCI: + case CONF_PASS_PRE_BOOT: +// if (conf->fixup_scsi) +// onboard_scsi_fixup(); +// if (conf->fixup_vga) +// vga_fixup(); + printk_debug("mainboard fixup pass %d done\r\n", + pass); + break; + } + +} +#endif + +#undef DEBUG +#define DEBUG 0 +#if DEBUG +static void debug_init(device_t dev) +{ + unsigned bus; + unsigned devfn; +#if 0 + for(bus = 0; bus < 256; bus++) { + for(devfn = 0; devfn < 256; devfn++) { + int i; + dev = dev_find_slot(bus, devfn); + if (!dev) { + continue; + } + if (!dev->enabled) { + continue; + } + printk_info("%02x:%02x.%0x aka %s\n", + bus, devfn >> 3, devfn & 7, dev_path(dev)); + for(i = 0; i < 256; i++) { + if ((i & 0x0f) == 0) { + printk_info("%02x:", i); + } + printk_info(" %02x", pci_read_config8(dev, i)); + if ((i & 0x0f) == 0xf) { + printk_info("\n"); + } + } + printk_info("\n"); + } + } +#endif +#if 0 + msr_t msr; + unsigned index; + unsigned eax, ebx, ecx, edx; + index = 0x80000007; + printk_debug("calling cpuid 0x%08x\n", index); + asm volatile( + "cpuid" + : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) + : "a" (index) + ); + printk_debug("cpuid[%08x]: %08x %08x %08x %08x\n", + index, eax, ebx, ecx, edx); + if (edx & (3 << 1)) { + index = 0xC0010042; + printk_debug("Reading msr: 0x%08x\n", index); + msr = rdmsr(index); + printk_debug("msr[0x%08x]: 0x%08x%08x\n", + index, msr.hi, msr.hi); + } +#endif +} + +static void debug_noop(device_t dummy) +{ +} + +static struct device_operations debug_operations = { + .read_resources = debug_noop, + .set_resources = debug_noop, + .enable_resources = debug_noop, + .init = debug_init, +}; + +static unsigned int scan_root_bus(device_t root, unsigned int max) +{ + struct device_path path; + device_t debug; + max = root_dev_scan_bus(root, max); + path.type = DEVICE_PATH_PNP; + path.u.pnp.port = 0; + path.u.pnp.device = 0; + debug = alloc_dev(&root->link[1], &path); + debug->ops = &debug_operations; + return max; +} +#endif + +static void mainboard_init(device_t dev) +{ + root_dev_init(dev); + +// do_verify_cpu_voltages(); +} + +static struct device_operations mainboard_operations = { + .read_resources = root_dev_read_resources, + .set_resources = root_dev_set_resources, + .enable_resources = root_dev_enable_resources, + .init = mainboard_init, +#if !DEBUG + .scan_bus = root_dev_scan_bus, +#else + .scan_bus = scan_root_bus, +#endif + .enable = 0, +}; + +static void enable_dev(struct device *dev) +{ + dev_root.ops = &mainboard_operations; +} +struct chip_operations mainboard_tyan_s2885_ops = { + .name = "Tyan s2885 mainboard ", + .enable_dev = enable_dev, }; |