diff options
| -rw-r--r-- | arch/arm/boot/compressed/head.S | 3 | ||||
| -rw-r--r-- | arch/arm/kernel/head.S | 18 |
2 files changed, 11 insertions, 10 deletions
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index e5ab51b9cceb..2568d311be21 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -237,7 +237,8 @@ not_relocated: mov r0, #0 */ cmp r4, r2 bhs wont_overwrite - add r0, r4, #4096*1024 @ 4MB largest kernel size + sub r3, sp, r5 @ > compressed kernel size + add r0, r4, r3, lsl #2 @ allow for 4x expansion cmp r0, r5 bls wont_overwrite diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 5365d4e5949e..ebc3e74a7947 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -234,18 +234,18 @@ __create_page_tables: /* * Now setup the pagetables for our kernel direct - * mapped region. We round TEXTADDR down to the - * nearest megabyte boundary. It is assumed that - * the kernel fits within 4 contigous 1MB sections. + * mapped region. */ add r0, r4, #(TEXTADDR & 0xff000000) >> 18 @ start of kernel str r3, [r0, #(TEXTADDR & 0x00f00000) >> 18]! - add r3, r3, #1 << 20 - str r3, [r0, #4]! @ KERNEL + 1MB - add r3, r3, #1 << 20 - str r3, [r0, #4]! @ KERNEL + 2MB - add r3, r3, #1 << 20 - str r3, [r0, #4] @ KERNEL + 3MB + + 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 /* * Then map first 1MB of ram in case it contains our boot params. |