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U-Boot: ARM: Add a linux entry point to asm shell code

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While the NetBSD entry point is handy as we can use a single uImage
with all 3 blobs, it bypasses U-Boot's own patching of the FDT since
it's not visible to it, so we won't get the RAM size and other things
through it.
This commit is contained in:
François Revol 2014-11-01 17:09:09 +01:00
parent 5de5d59d78
commit d1ebf9716d
1 changed files with 10 additions and 0 deletions
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10
src/system/boot/platform/u-boot/arch/arm/shell.S
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@ -30,6 +30,14 @@ SYMBOL(_start_netbsd):
b _start_common b _start_common
SYMBOL_END(_start_netbsd) SYMBOL_END(_start_netbsd)
/*
* called from bootm with linux loader compatible args
*/
SYMBOL(_start_linux):
mov r4,#2
b _start_common
SYMBOL_END(_start_linux)
SYMBOL(_start_common): SYMBOL(_start_common):
@ -63,6 +71,8 @@ SYMBOL(_start_common):
beq start_raw beq start_raw
cmp r4,#1 cmp r4,#1
beq start_netbsd beq start_netbsd
cmp r4,#2
beq start_linux
mov pc,lr mov pc,lr
SYMBOL_END(_start_common) SYMBOL_END(_start_common)