93f89519fd
Add bf60x cpu pm callbacks and change blackfin pm framework to support bf60x. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
63 lines
1.1 KiB
ArmAsm
63 lines
1.1 KiB
ArmAsm
#include <linux/linkage.h>
|
|
#include <asm/blackfin.h>
|
|
#include <asm/dpmc.h>
|
|
|
|
#define PM_STACK (COREA_L1_SCRATCH_START + L1_SCRATCH_LENGTH - 12)
|
|
|
|
.section .l1.text
|
|
ENTRY(_enter_hibernate)
|
|
/* switch stack to L1 scratch, prepare for ddr srfr */
|
|
P0.H = HI(PM_STACK);
|
|
P0.L = LO(PM_STACK);
|
|
SP = P0;
|
|
|
|
call _bf609_ddr_sr;
|
|
call _bfin_hibernate_syscontrol;
|
|
|
|
P0.H = HI(DPM0_RESTORE4);
|
|
P0.L = LO(DPM0_RESTORE4);
|
|
P1.H = _bf609_pm_data;
|
|
P1.L = _bf609_pm_data;
|
|
[P0] = P1;
|
|
|
|
P0.H = HI(DPM0_CTL);
|
|
P0.L = LO(DPM0_CTL);
|
|
R3.H = HI(0x00000010);
|
|
R3.L = LO(0x00000010);
|
|
[P0] = R3;
|
|
|
|
SSYNC;
|
|
ENDPROC(_enter_hibernate_mode)
|
|
|
|
.section .text
|
|
ENTRY(_bf609_hibernate)
|
|
bfin_cpu_reg_save;
|
|
bfin_core_mmr_save;
|
|
|
|
P0.H = _bf609_pm_data;
|
|
P0.L = _bf609_pm_data;
|
|
R1.H = 0xDEAD;
|
|
R1.L = 0xBEEF;
|
|
R2.H = .Lpm_resume_here;
|
|
R2.L = .Lpm_resume_here;
|
|
[P0++] = R1;
|
|
[P0++] = R2;
|
|
[P0++] = SP;
|
|
|
|
P1.H = _enter_hibernate;
|
|
P1.L = _enter_hibernate;
|
|
|
|
call (P1);
|
|
.Lpm_resume_here:
|
|
|
|
bfin_core_mmr_restore;
|
|
bfin_cpu_reg_restore;
|
|
|
|
[--sp] = RETI; /* Clear Global Interrupt Disable */
|
|
SP += 4;
|
|
|
|
RTS;
|
|
|
|
ENDPROC(_bf609_hibernate)
|
|
|