diff options
| author | Mark Salter <msalter@redhat.com> | 2013-09-04 10:10:02 -0400 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2013-09-05 12:29:05 -0400 |
| commit | 4d5e0b1527dd330940e8b7180b8d7016fc900352 (patch) | |
| tree | 57f22cae744fce34539f43959abead7201fb05ca | |
| parent | d50240a5f6ceaf690a77b0fccb17be51cfa151c2 (diff) | |
Documentation/arm64: clarify requirements for DTB placement
The current description of DTB placement requirements does not quite
match the kernel code in head.S: __vet_fdt and __create_page_tables.
This patch tweaks the text to match the actual requirements placed on
it by the code.
Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| -rw-r--r-- | Documentation/arm64/booting.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/arm64/booting.txt b/Documentation/arm64/booting.txt index 5273c4d60e65..98df4a03807e 100644 --- a/Documentation/arm64/booting.txt +++ b/Documentation/arm64/booting.txt | |||
| @@ -45,9 +45,9 @@ sees fit.) | |||
| 45 | 45 | ||
| 46 | Requirement: MANDATORY | 46 | Requirement: MANDATORY |
| 47 | 47 | ||
| 48 | The device tree blob (dtb) must be no bigger than 2 megabytes in size | 48 | The device tree blob (dtb) must be placed on an 8-byte boundary within |
| 49 | and placed at a 2-megabyte boundary within the first 512 megabytes from | 49 | the first 512 megabytes from the start of the kernel image and must not |
| 50 | the start of the kernel image. This is to allow the kernel to map the | 50 | cross a 2-megabyte boundary. This is to allow the kernel to map the |
| 51 | blob using a single section mapping in the initial page tables. | 51 | blob using a single section mapping in the initial page tables. |
| 52 | 52 | ||
| 53 | 53 | ||