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-rw-r--r--arch/arm/kernel/head.S25
-rw-r--r--arch/arm/kernel/vmlinux.lds.S1
2 files changed, 14 insertions, 12 deletions
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index cf495a30..c5f0c52 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -48,9 +48,11 @@
.endm
#ifdef CONFIG_XIP_KERNEL
-#define TEXTADDR XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR)
+#define KERNEL_START XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR)
+#define KERNEL_END _edata_loc
#else
-#define TEXTADDR KERNEL_RAM_VADDR
+#define KERNEL_START KERNEL_RAM_VADDR
+#define KERNEL_END _end
#endif
/*
@@ -240,16 +242,15 @@ __create_page_tables:
* Now setup the pagetables for our kernel direct
* mapped region.
*/
- add r0, r4, #(TEXTADDR & 0xff000000) >> 18 @ start of kernel
- str r3, [r0, #(TEXTADDR & 0x00f00000) >> 18]!
-
- ldr r6, =(_end - PAGE_OFFSET - 1) @ r6 = number of sections
- mov r6, r6, lsr #20 @ needed for kernel minus 1
-
-1: add r3, r3, #1 << 20
- str r3, [r0, #4]!
- subs r6, r6, #1
- bgt 1b
+ add r0, r4, #(KERNEL_START & 0xff000000) >> 18
+ str r3, [r0, #(KERNEL_START & 0x00f00000) >> 18]!
+ ldr r6, =(KERNEL_END - 1)
+ add r0, r0, #4
+ add r6, r4, r6, lsr #18
+1: cmp r0, r6
+ add r3, r3, #1 << 20
+ strls r3, [r0], #4
+ bls 1b
/*
* Then map first 1MB of ram in case it contains our boot params.
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index b929a60..ddbdad4 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -156,6 +156,7 @@ SECTIONS
_edata = .;
}
+ _edata_loc = __data_loc + SIZEOF(.data);
.bss : {
__bss_start = .; /* BSS */
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