From e93977ca7cf8f28f29698140df9380f85696b61d Mon Sep 17 00:00:00 2001
From: zhangyan <1422953826@qq.com>
Date: Sun, 28 Sep 2025 09:46:48 +0800
Subject: [PATCH 1/3] debuge mmu

---
 libcpu/aarch64/common/mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libcpu/aarch64/common/mmu.c b/libcpu/aarch64/common/mmu.c
index afa70cb90d9..368a7d83e27 100644
--- a/libcpu/aarch64/common/mmu.c
+++ b/libcpu/aarch64/common/mmu.c
@@ -54,7 +54,7 @@
 
 /* restrict virtual address on usage of RT_NULL */
 #ifndef KERNEL_VADDR_START
-#define KERNEL_VADDR_START (ARCH_RAM_OFFSET + ARCH_TEXT_OFFSET)
+#define KERNEL_VADDR_START 0x1000
 #endif
 
 volatile unsigned long MMUTable[512] __attribute__((aligned(4 * 1024)));

From 1ca170278fd3099c6762db9df6e553c02a5082a9 Mon Sep 17 00:00:00 2001
From: zhangyan <1422953826@qq.com>
Date: Sun, 28 Sep 2025 09:54:00 +0800
Subject: [PATCH 2/3] debuge mmu

---
 bsp/phytium/aarch32/README.md | 2 ++
 bsp/phytium/aarch64/README.md | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/bsp/phytium/aarch32/README.md b/bsp/phytium/aarch32/README.md
index d1edf14e2e6..11349f56a69 100644
--- a/bsp/phytium/aarch32/README.md
+++ b/bsp/phytium/aarch32/README.md
@@ -67,6 +67,8 @@ rtthread_a32.elf
 rtthread_a32.map
 ```
 
+- 若需切换版本进行调试，请先在`bsp\phytium\libraries\phytium_standalone_sdk`目录下删除现有的`phytium_standalone_sdk`工具包，然后重新执行上述指令以拉取指定版本。
+
 ### RT-Thread env 环境
 
 #### RT-Thread
diff --git a/bsp/phytium/aarch64/README.md b/bsp/phytium/aarch64/README.md
index f2aa224ccd1..3a00b6d0a21 100644
--- a/bsp/phytium/aarch64/README.md
+++ b/bsp/phytium/aarch64/README.md
@@ -67,6 +67,8 @@ rtthread_a64.elf
 rtthread_a64.map
 ```
 
+- 若需切换版本进行调试，请先在`bsp\phytium\libraries\phytium_standalone_sdk`目录下删除现有的`phytium_standalone_sdk`工具包，然后重新执行上述指令以拉取指定版本。
+
 ### RT-Thread env 环境
 
 #### RT-Thread

From 7233a4abbb8843600c89b2d46887bffc4a6b887c Mon Sep 17 00:00:00 2001
From: zhangyan <1422953826@qq.com>
Date: Tue, 30 Sep 2025 09:52:27 +0800
Subject: [PATCH 3/3] update

---
 bsp/phytium/aarch64/Kconfig | 3 +++
 libcpu/aarch64/common/mmu.c | 7 ++++++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/bsp/phytium/aarch64/Kconfig b/bsp/phytium/aarch64/Kconfig
index 0bb44f3565b..5e689d71341 100644
--- a/bsp/phytium/aarch64/Kconfig
+++ b/bsp/phytium/aarch64/Kconfig
@@ -64,3 +64,6 @@ menu "Standalone Setting"
 
 endmenu
 
+config KERNEL_ASPACE_START
+    hex
+    default 0x1000
\ No newline at end of file
diff --git a/libcpu/aarch64/common/mmu.c b/libcpu/aarch64/common/mmu.c
index 368a7d83e27..d394cda4034 100644
--- a/libcpu/aarch64/common/mmu.c
+++ b/libcpu/aarch64/common/mmu.c
@@ -54,8 +54,13 @@
 
 /* restrict virtual address on usage of RT_NULL */
 #ifndef KERNEL_VADDR_START
-#define KERNEL_VADDR_START 0x1000
+#ifdef  KERNEL_ASPACE_START
+#define KERNEL_VADDR_START KERNEL_ASPACE_START
+#else
+#define KERNEL_VADDR_START (ARCH_RAM_OFFSET + ARCH_TEXT_OFFSET)
 #endif
+#endif /* KERNEL_VADDR_START */
+
 
 volatile unsigned long MMUTable[512] __attribute__((aligned(4 * 1024)));