mirrors/sunxi-tools
0
0
Fork 0
mirror of https://github.com/linux-sunxi/sunxi-tools.git synced 2024-11-23 09:56:37 +08:00
Code Issues Packages Projects Releases Wiki Activity

fel: thunks: Use armv5te architecture for thunks

Browse Source 
Almost all thunks are already ARMv5 safe, so we can just require this
architecture on the gas command line, to enforce compatibility with the
F1Cx00 series. This prevents accidental changes in the future.

The RMR thunk uses the ARMv7 only DSB/ISB instructions, but this runs on
ARMv8 cores only anyway, so we just force ARMv7 for this file, and avoid
code changes.

Signed-off-by: Andre Przywara <osp@andrep.de>
This commit is contained in:
Andre Przywara 2022-01-20 20:30:05 +00:00
parent 0b49f88acf
commit 4fb307f1e4
2 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
thunks/Makefile
View File

@ -31,5 +31,5 @@ fel-to-spl-thunk.h: fel-to-spl-thunk.S FORCE
$(OBJDUMP) -d $(subst .S,.o,$<) | $(AWK_O_TO_H) -v style=old > $@
$(THUNKS): %.h: %.S FORCE
$(AS) -o $(subst .S,.o,$<) $<
$(AS) -o $(subst .S,.o,$<) -march=armv5te $<
$(OBJDUMP) -d $(subst .S,.o,$<) | $(AWK_O_TO_H) > $@

2
thunks/rmr-thunk.S
View File

@ -1,6 +1,8 @@
/*
* Request AArch32/AArch64 warm reset, using RVBAR and Reset Management Register
* This is used on ARMv8 cores only, so force v7 code to allow dsb and isb.
*/
.arch armv7-a
rmr_request:
ldr r0, 1f /* RVBAR register address */