On Fri, Jun 10, 2016 at 9:40 PM, Hans de Goede hdegoede@redhat.com wrote:
Hi,
On 07-06-16 04:54, Chen-Yu Tsai wrote:
To make the PSCI backend more maintainable and easier to port to newer SoCs, rewrite the current PSCI implementation in C.
Some inline assembly bits are required to access coprocessor registers. PSCI stack setup is the only part left completely in assembly. In theory this part could be split out of psci_arch_init into a separate common function, and psci_arch_init could be completely in C.
Signed-off-by: Chen-Yu Tsai wens@csie.org
I tried merging this in my tree to add it to u-boot-sunxi/next, but unfortunately it triggers a bug in gcc-6.1, I've filed a bug with gcc to get this fixed:
Interesting. Seems like the compiler should be emitting LDMFD instead of POP, or a POP followed by a SUBS/MOVS.
Also cp15_read_scr / cp15_write_scr are missing __secure notations.
Do you want me to send a new version for this?
ChenYu
Regards,
Hans