diff options
Diffstat (limited to 'arch/arm/mach-omap2/sram34xx.S')
| -rw-r--r-- | arch/arm/mach-omap2/sram34xx.S | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S index 35131e5bc7d1..c080c82521e1 100644 --- a/arch/arm/mach-omap2/sram34xx.S +++ b/arch/arm/mach-omap2/sram34xx.S | |||
| @@ -40,22 +40,23 @@ | |||
| 40 | /* | 40 | /* |
| 41 | * Change frequency of core dpll | 41 | * Change frequency of core dpll |
| 42 | * r0 = sdrc_rfr_ctrl r1 = sdrc_actim_ctrla r2 = sdrc_actim_ctrlb r3 = M2 | 42 | * r0 = sdrc_rfr_ctrl r1 = sdrc_actim_ctrla r2 = sdrc_actim_ctrlb r3 = M2 |
| 43 | * r4 = Unlock SDRC DLL? (1 = yes, 0 = no) -- only unlock DLL for | ||
| 44 | * SDRC rates < 83MHz | ||
| 43 | */ | 45 | */ |
| 44 | ENTRY(omap3_sram_configure_core_dpll) | 46 | ENTRY(omap3_sram_configure_core_dpll) |
| 45 | stmfd sp!, {r1-r12, lr} @ store regs to stack | 47 | stmfd sp!, {r1-r12, lr} @ store regs to stack |
| 48 | ldr r4, [sp, #52] @ pull extra args off the stack | ||
| 46 | dsb @ flush buffered writes to interconnect | 49 | dsb @ flush buffered writes to interconnect |
| 47 | cmp r3, #0x2 | 50 | cmp r3, #0x2 |
| 48 | blne configure_sdrc | 51 | blne configure_sdrc |
| 49 | cmp r3, #0x2 | 52 | cmp r4, #0x1 |
| 53 | bleq unlock_dll | ||
| 50 | blne lock_dll | 54 | blne lock_dll |
| 51 | cmp r3, #0x1 | ||
| 52 | blne unlock_dll | ||
| 53 | bl sdram_in_selfrefresh @ put the SDRAM in self refresh | 55 | bl sdram_in_selfrefresh @ put the SDRAM in self refresh |
| 54 | bl configure_core_dpll | 56 | bl configure_core_dpll |
| 55 | bl enable_sdrc | 57 | bl enable_sdrc |
| 56 | cmp r3, #0x1 | 58 | cmp r4, #0x1 |
| 57 | blne wait_dll_unlock | 59 | bleq wait_dll_unlock |
| 58 | cmp r3, #0x2 | ||
| 59 | blne wait_dll_lock | 60 | blne wait_dll_lock |
| 60 | cmp r3, #0x1 | 61 | cmp r3, #0x1 |
| 61 | blne configure_sdrc | 62 | blne configure_sdrc |