brain-hackers_pepepper-mirror/u-boot-brain
1
0
Fork 0
mirror of https://github.com/brain-hackers/u-boot-brain synced 2024-07-05 10:46:15 +09:00
Code Issues Projects Releases Wiki Activity

arm64: Add 32bit arm compatible dcache definitions

Browse Source 
We want to be able to reuse device drivers from 32bit code, so let's add
definitions for all the dcache options that 32bit code has.

While at it, fix up the DCACHE_OFF configuration. That was setting the bits
to declare a PTE a PTE and left the MAIR index bit at 0. Drop the useless
bits and make the index explicit.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2016-03-16 15:41:20 +01:00 committed by Tom Rini
parent 8cac14719d
commit 53eb45ef40
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/arm/include/asm/system.h
View File

@ -26,8 +26,12 @@ u64 get_page_table_size(void);
#define MMU_SECTION_SHIFT 21
#define MMU_SECTION_SIZE (1 << MMU_SECTION_SHIFT)
/* These constants need to be synced to the MT_ types in asm/armv8/mmu.h */
enum dcache_option {
DCACHE_OFF = 0x3,
DCACHE_OFF = 0 << 2,
DCACHE_WRITETHROUGH = 3 << 2,
DCACHE_WRITEBACK = 4 << 2,
DCACHE_WRITEALLOC = 4 << 2,
};
#define isb() \