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-rw-r--r--src/drivers/generic/debug/Config.lb2
-rw-r--r--src/drivers/generic/debug/chip.h4
-rw-r--r--src/drivers/generic/debug/debug_dev.c106
3 files changed, 112 insertions, 0 deletions
diff --git a/src/drivers/generic/debug/Config.lb b/src/drivers/generic/debug/Config.lb
new file mode 100644
index 0000000000..df69ac19f3
--- /dev/null
+++ b/src/drivers/generic/debug/Config.lb
@@ -0,0 +1,2 @@
+config chip.h
+object debug_dev.o
diff --git a/src/drivers/generic/debug/chip.h b/src/drivers/generic/debug/chip.h
new file mode 100644
index 0000000000..78ce2159a1
--- /dev/null
+++ b/src/drivers/generic/debug/chip.h
@@ -0,0 +1,4 @@
+extern struct chip_operations drivers_generic_debug_ops;
+
+struct drivers_generic_debug_config {
+};
diff --git a/src/drivers/generic/debug/debug_dev.c b/src/drivers/generic/debug/debug_dev.c
new file mode 100644
index 0000000000..712a7e3082
--- /dev/null
+++ b/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,
+};