xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branches 'debug', 'fixes', 'l2c' (early part), 'misc' and 'sa1100' into for-next

Browse Source
This commit is contained in:
Russell King
2015-02-10 10:26:27 +00:00
parent a61cbf51f0 8e64806672 1d88967900 3cf3857134 e461894dc2
commit ed8f8ce38d
51 changed files with 957 additions and 1258 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
arch/arm/boot/compressed/head.S
View File

@@ -178,7 +178,7 @@ not_angel:
/*
* Set up a page table only if it won't overwrite ourself.
* That means r4 < pc && r4 - 16k page directory > &_end.
* That means r4 < pc || r4 - 16k page directory > &_end.
* Given that r4 > &_end is most unfrequent, we add a rough
* additional 1MB of room for a possible appended DTB.
*/
@@ -263,16 +263,37 @@ restart: adr r0, LC0
* OK... Let's do some funky business here.
* If we do have a DTB appended to zImage, and we do have
* an ATAG list around, we want the later to be translated
* and folded into the former here. To be on the safe side,
* let's temporarily move the stack away into the malloc
* area. No GOT fixup has occurred yet, but none of the
* code we're about to call uses any global variable.
* and folded into the former here. No GOT fixup has occurred
* yet, but none of the code we're about to call uses any
* global variable.
*/
add sp, sp, #0x10000
/* Get the initial DTB size */
ldr r5, [r6, #4]
#ifndef __ARMEB__
/* convert to little endian */
eor r1, r5, r5, ror #16
bic r1, r1, #0x00ff0000
mov r5, r5, ror #8
eor r5, r5, r1, lsr #8
#endif
/* 50% DTB growth should be good enough */
add r5, r5, r5, lsr #1
/* preserve 64-bit alignment */
add r5, r5, #7
bic r5, r5, #7
/* clamp to 32KB min and 1MB max */
cmp r5, #(1 << 15)
movlo r5, #(1 << 15)
cmp r5, #(1 << 20)
movhi r5, #(1 << 20)
/* temporarily relocate the stack past the DTB work space */
add sp, sp, r5
stmfd sp!, {r0-r3, ip, lr}
mov r0, r8
mov r1, r6
sub r2, sp, r6
mov r2, r5
bl atags_to_fdt
/*
@@ -285,11 +306,11 @@ restart: adr r0, LC0
bic r0, r0, #1
add r0, r0, #0x100
mov r1, r6
sub r2, sp, r6
mov r2, r5
bleq atags_to_fdt
ldmfd sp!, {r0-r3, ip, lr}
sub sp, sp, #0x10000
sub sp, sp, r5
#endif
mov r8, r6 @ use the appended device tree
@@ -306,7 +327,7 @@ restart: adr r0, LC0
subs r1, r5, r1
addhi r9, r9, r1
/* Get the dtb's size */
/* Get the current DTB size */
ldr r5, [r6, #4]
#ifndef __ARMEB__
/* convert r5 (dtb size) to little endian */