From ac9741e12222e72bad3414bc6f588e70a3d130cc Mon Sep 17 00:00:00 2001
From: Richard Qin <richard.qin.x@gmail.com>
Date: Tue, 14 Apr 2026 22:47:15 +0800
Subject: feat: implement FDT-based memory discovery and add comprehensive
 debug logging to exec syscalls

---
 include/drivers/uart.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'include/drivers')

diff --git a/include/drivers/uart.h b/include/drivers/uart.h
index 1cdc938..a56624c 100644
--- a/include/drivers/uart.h
+++ b/include/drivers/uart.h
@@ -1,13 +1,14 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
- * Copyright (C) 2026 Richard QIn
+ * Copyright (C) 2026 Richard Qin
  */
 
 #pragma once
 #include "common/types.h"
 #include "drivers/uart_color.h"
+#include "kernel/fdt.h"
 
-#define UART0 0x10000000L
+// UART register offsets (NS16550A)
 #define RHR 0 // Receive Holding Register (read mode)
 #define THR 0 // Transmit Holding Register (write mode)
 #define IER 1 // Interrupt Enable Register
@@ -21,6 +22,9 @@
 
 #define UART_RX_BUF_SIZE 128
 
+// UART base address from FDT (use inline function to avoid macro issues)
+static inline uint64 uart_base() { return g_devices.uart.base_addr; }
+
 namespace Drivers
 {
     void uart_init();
-- 
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