GitHub-Mirror/u-boot
2
0
Fork 0
mirror of https://github.com/Fishwaldo/u-boot.git synced 2025-03-21 06:31:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

ARMv8: make master CPU checking logic more clear

Browse source 
macro branch_if_master checks master CPU via (Aff3 & (Aff2:Aff1:Aff0))
it is simple but a little obscure.

fix by checking Affx fields within MPIDR_EL1 directly.

Signed-off-by: zijun_hu <zijun_hu@htc.com>
This commit is contained in:
zijun_hu 2017-09-25 15:28:50 +08:00 • committed by Tom Rini
parent b813908354
commit 34f9a92583
1 changed files with 1 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
arch/arm/include/asm/macro.h
View file

@ -131,6 +131,7 @@ lr .req x30
/* NOTE: MPIDR handling will be erroneous on multi-cluster machines */
mrs \xreg1, mpidr_el1
lsr \xreg2, \xreg1, #32
lsl \xreg2, \xreg2, #32
lsl \xreg1, \xreg1, #40
lsr \xreg1, \xreg1, #40
orr \xreg1, \xreg1, \xreg2