create wdt device discovery

discuss: per wrv32em status, consider moving custom wdt format to dtb or
pci device discovery (potentially both: we have the framework for pci.ko
extension after using dtb to discover memory and pci devices)

1 files changed, 16 insertions, 5 deletions

diff --git a/kernel/kernel.c b/kernel/kernel.c
index 753f4a5..3dbf0d1 100644
--- a/kernel/kernel.c
+++ b/kernel/kernel.c
@@ -1,3 +1,5 @@
+#include <types.h>
+#include <wdt.h>
 #define UART_BASE 0x10000000  // Example UART address
 
 static inline void putchar(char c) {
@@ -11,10 +13,19 @@ static void print_string(const char *str) {
     }
 }
 
-void kernel_main(void) {
-    print_string("Hello from RISC-V kernel!\n");
-    
-    while (1) {
-        // Wait
+void kernel_main(void *wdt) {
+    struct wdt_root *root = wdt;
+    print_string("deserialized all!\n");
+    uint32_t count = root->count;
+    for (uint32_t i = 0; i < count; i++) {
+        print_string("deserializing wdt node!\n");
+        print_string("device type: ");
+        if (root->devices[i].type == 0) {
+            print_string("mem");
+        } else {
+            print_string("unknown");
+        }
+        print_string("\n");
     }
+    while(1);
 }