debug device added

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1744 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/drivers/generic/debug/Config.lb

@@ -0,0 +1,2 @@
+config chip.h
+object debug_dev.o

src/drivers/generic/debug/chip.h

@@ -0,0 +1,4 @@
+extern struct chip_operations drivers_generic_debug_ops;
+
+struct drivers_generic_debug_config {
+};

src/drivers/generic/debug/debug_dev.c

@@ -0,0 +1,106 @@
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#include "chip.h"
+
+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 void enable_dev(struct device *dev)
+{
+	dev->ops = &debug_operations;
+}
+
+struct chip_operations drivers_generic_debug_ops = {
+	CHIP_NAME("Debug device")
+	.enable_dev = enable_dev, 
+};