diff options
| author |   Mark Salter <msalter@redhat.com> | 2014-04-07 15:39:52 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-07 16:36:15 -0700 |
| commit | bf4b558eba920a38f91beb5ee62a8ce2628c92f7 (patch) | |
| tree | 322210246d72cf0ce2a700709da443022e9dac6b /Documentation/arm64 | |
| parent | arm64: initialize pgprot info earlier in boot (diff) | |
| download | linux-dev-bf4b558eba920a38f91beb5ee62a8ce2628c92f7.tar.xz linux-dev-bf4b558eba920a38f91beb5ee62a8ce2628c92f7.zip | |
arm64: add early_ioremap support
Add support for early IO or memory mappings which are needed before the
normal ioremap() is usable. This also adds fixmap support for permanent
fixed mappings such as that used by the earlyprintk device register
region.
Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/arm64')
| -rw-r--r-- | Documentation/arm64/memory.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/arm64/memory.txt b/Documentation/arm64/memory.txt index 85e24c4f215c..d50fa618371b 100644 --- a/Documentation/arm64/memory.txt +++ b/Documentation/arm64/memory.txt @@ -39,7 +39,7 @@ ffffffbffa000000 ffffffbffaffffff 16MB PCI I/O space ffffffbffb000000 ffffffbffbbfffff 12MB [guard] -ffffffbffbc00000 ffffffbffbdfffff 2MB earlyprintk device +ffffffbffbc00000 ffffffbffbdfffff 2MB fixed mappings ffffffbffbe00000 ffffffbffbffffff 2MB [guard] @@ -66,7 +66,7 @@ fffffdfffa000000 fffffdfffaffffff 16MB PCI I/O space fffffdfffb000000 fffffdfffbbfffff 12MB [guard] -fffffdfffbc00000 fffffdfffbdfffff 2MB earlyprintk device +fffffdfffbc00000 fffffdfffbdfffff 2MB fixed mappings fffffdfffbe00000 fffffdfffbffffff 2MB [guard] |