diff options
Diffstat (limited to 'arch/arm/kernel/head.S')
| -rw-r--r-- | arch/arm/kernel/head.S | 18 |
1 files changed, 9 insertions, 9 deletions
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: | |||
| 234 | 234 | ||
| 235 | /* | 235 | /* |
| 236 | * Now setup the pagetables for our kernel direct | 236 | * Now setup the pagetables for our kernel direct |
| 237 | * mapped region. We round TEXTADDR down to the | 237 | * mapped region. |
| 238 | * nearest megabyte boundary. It is assumed that | ||
| 239 | * the kernel fits within 4 contigous 1MB sections. | ||
| 240 | */ | 238 | */ |
| 241 | add r0, r4, #(TEXTADDR & 0xff000000) >> 18 @ start of kernel | 239 | add r0, r4, #(TEXTADDR & 0xff000000) >> 18 @ start of kernel |
| 242 | str r3, [r0, #(TEXTADDR & 0x00f00000) >> 18]! | 240 | str r3, [r0, #(TEXTADDR & 0x00f00000) >> 18]! |
| 243 | add r3, r3, #1 << 20 | 241 | |
| 244 | str r3, [r0, #4]! @ KERNEL + 1MB | 242 | ldr r6, =(_end - PAGE_OFFSET - 1) @ r6 = number of sections |
| 245 | add r3, r3, #1 << 20 | 243 | mov r6, r6, lsr #20 @ needed for kernel minus 1 |
| 246 | str r3, [r0, #4]! @ KERNEL + 2MB | 244 | |
| 247 | add r3, r3, #1 << 20 | 245 | 1: add r3, r3, #1 << 20 |
| 248 | str r3, [r0, #4] @ KERNEL + 3MB | 246 | str r3, [r0, #4]! |
| 247 | subs r6, r6, #1 | ||
| 248 | bgt 1b | ||
| 249 | 249 | ||
| 250 | /* | 250 | /* |
| 251 | * Then map first 1MB of ram in case it contains our boot params. | 251 | * Then map first 1MB of ram in case it contains our boot params. |