projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 93f89519 SM |
1 | #include <linux/linkage.h> |
| 2 | #include <asm/blackfin.h> | |
| 3 | #include <asm/dpmc.h> | |
| 4 | ||
| 5 | #define PM_STACK (COREA_L1_SCRATCH_START + L1_SCRATCH_LENGTH - 12) | |
| 6 | ||
| 7 | .section .l1.text | |
| 8 | ENTRY(_enter_hibernate) | |
| 9 | /* switch stack to L1 scratch, prepare for ddr srfr */ | |
| 10 | P0.H = HI(PM_STACK); | |
| 11 | P0.L = LO(PM_STACK); | |
| 12 | SP = P0; | |
| 13 | ||
| 14 | call _bf609_ddr_sr; | |
| 15 | call _bfin_hibernate_syscontrol; | |
| 16 | ||
| 17 | P0.H = HI(DPM0_RESTORE4); | |
| 18 | P0.L = LO(DPM0_RESTORE4); | |
| 19 | P1.H = _bf609_pm_data; | |
| 20 | P1.L = _bf609_pm_data; | |
| 21 | [P0] = P1; | |
| 22 | ||
| 23 | P0.H = HI(DPM0_CTL); | |
| 24 | P0.L = LO(DPM0_CTL); | |
| 25 | R3.H = HI(0x00000010); | |
| 26 | R3.L = LO(0x00000010); | |
| 72b099ed SZ |
27 | |
| 28 | bfin_init_pm_bench_cycles; | |
| 29 | ||
| 93f89519 SM |
30 | [P0] = R3; |
| 31 | ||
| 32 | SSYNC; | |
| 33 | ENDPROC(_enter_hibernate_mode) | |
| 34 | ||
| 35 | .section .text | |
| 36 | ENTRY(_bf609_hibernate) | |
| 37 | bfin_cpu_reg_save; | |
| 38 | bfin_core_mmr_save; | |
| 39 | ||
| 40 | P0.H = _bf609_pm_data; | |
| 41 | P0.L = _bf609_pm_data; | |
| 42 | R1.H = 0xDEAD; | |
| 43 | R1.L = 0xBEEF; | |
| 44 | R2.H = .Lpm_resume_here; | |
| 45 | R2.L = .Lpm_resume_here; | |
| 46 | [P0++] = R1; | |
| 47 | [P0++] = R2; | |
| 48 | [P0++] = SP; | |
| 49 | ||
| 50 | P1.H = _enter_hibernate; | |
| 51 | P1.L = _enter_hibernate; | |
| 52 | ||
| 53 | call (P1); | |
| 54 | .Lpm_resume_here: | |
| 55 | ||
| 56 | bfin_core_mmr_restore; | |
| 57 | bfin_cpu_reg_restore; | |
| 58 | ||
| 59 | [--sp] = RETI; /* Clear Global Interrupt Disable */ | |
| 60 | SP += 4; | |
| 61 | ||
| 62 | RTS; | |
| 63 | ||
| 64 | ENDPROC(_bf609_hibernate) | |
| 65 |