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

bfin: pm: add deepsleep for bf60x

Browse Source 
Add add deepsleep for bf60x.
1. Call DMC init functions to enter and exit DDR self refresh mode.
2. Wait till CGU PLL is locked after wake up and exit DDR self refresh mode.
3. Make asessembly function enter_deepsleep comply with C funtion ABI in
order to call other C functions.
4. Switch kernel stack by register EX_SCRATCH_REG.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
This commit is contained in:
Sonic Zhang
2012-07-23 11:35:30 +08:00
committed by Bob Liu
parent a5b4d4be6c
commit c7e48e1e3e
7 changed files with 200 additions and 130 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
arch/blackfin/mach-common/entry.S
View File

@@ -25,13 +25,6 @@
#include <asm/context.S>
#if defined(CONFIG_BFIN_SCRATCH_REG_RETN)
# define EX_SCRATCH_REG RETN
#elif defined(CONFIG_BFIN_SCRATCH_REG_RETE)
# define EX_SCRATCH_REG RETE
#else
# define EX_SCRATCH_REG CYCLES
#endif
#ifdef CONFIG_EXCPT_IRQ_SYSC_L1
.section .l1.text