diff options
Diffstat (limited to 'src/mainboard/tyan/s4882')
| -rw-r--r-- | src/mainboard/tyan/s4882/mainboard.c | 131 |
1 files changed, 130 insertions, 1 deletions
diff --git a/src/mainboard/tyan/s4882/mainboard.c b/src/mainboard/tyan/s4882/mainboard.c index 1aabf1ed00..0088901328 100644 --- a/src/mainboard/tyan/s4882/mainboard.c +++ b/src/mainboard/tyan/s4882/mainboard.c @@ -3,10 +3,139 @@ #include <device/pci.h> #include <device/pci_ids.h> #include <device/pci_ops.h> -#include "../../../northbridge/amd/amdk8/northbridge.h" #include "chip.h" +#undef DEBUG +#define DEBUG 0 +#if DEBUG + +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 & 0xf)==0) printk_debug("\n%02x:",i); + printk_debug(" %02x",byte); + } + printk_debug("\n"); + +} +static void print_mem(void) +{ + unsigned int i; + unsigned int start = 0xfffff000; + for(i=start;i<0xffffffff;i++) { + if((i & 0xf)==0) printk_debug("\n %08x:",i); + printk_debug(" %02x ",(unsigned char)*((unsigned char *)i)); + } + printk_debug(" %02x \n",(unsigned char)*((unsigned char *)i)); + + } +static void print_pci_regs_all(void) +{ + struct device *dev; + 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) { + continue; + } + if(!dev->enabled) { + continue; + } + printk_debug("\n%02x:%02x:%02x aka %s",i,j,k, dev_path(dev)); + print_pci_regs(dev); + } + } + } + +} + +static void debug_init(device_t dev) +{ + unsigned bus; + unsigned devfn; + +// print_pci_regs_all(); + + print_mem(); +#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; +} + + +static void mainboard_init(device_t dev) +{ + root_dev_init(dev); + // Do sth +} + +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, + .scan_bus = scan_root_bus, +}; + +static void enable_dev(struct device *dev) +{ + dev_root.ops = &mainboard_operations; +} +#endif struct chip_operations mainboard_tyan_s4882_ops = { CHIP_NAME("Tyan s4882 mainboard") +#if DEBUG + .enable_dev = enable_dev, +#endif }; |