diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-omap2/clock34xx.c | 9 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/sram34xx.S | 8 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/mach/sram.h | 6 | ||||
| -rw-r--r-- | arch/arm/plat-omap/sram.c | 6 |
4 files changed, 15 insertions, 14 deletions
diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c index cf41ab5..045da92 100644 --- a/arch/arm/mach-omap2/clock34xx.c +++ b/arch/arm/mach-omap2/clock34xx.c @@ -739,9 +739,9 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate) sdrcrate = sdrc_ick.rate; if (rate > clk->rate) - sdrcrate <<= ((rate / clk->rate) - 1); + sdrcrate <<= ((rate / clk->rate) >> 1); else - sdrcrate >>= ((clk->rate / rate) - 1); + sdrcrate >>= ((clk->rate / rate) >> 1); sp = omap2_sdrc_get_params(sdrcrate); if (!sp) @@ -768,12 +768,9 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate) pr_debug("clock: SDRC timing params used: %08x %08x %08x\n", sp->rfr_ctrl, sp->actim_ctrla, sp->actim_ctrlb); - /* REVISIT: SRAM code doesn't support other M2 divisors yet */ - WARN_ON(new_div != 1 && new_div != 2); - omap3_configure_core_dpll(sp->rfr_ctrl, sp->actim_ctrla, sp->actim_ctrlb, new_div, unlock_dll, c, - sp->mr); + sp->mr, rate > clk->rate); return 0; } diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S index 16eb4ef..487fa86 100644 --- a/arch/arm/mach-omap2/sram34xx.S +++ b/arch/arm/mach-omap2/sram34xx.S @@ -70,6 +70,7 @@ * r5 = number of MPU cycles to wait for SDRC to stabilize after * reprogramming the SDRC when switching to a slower MPU speed * r6 = new SDRC_MR_0 register value + * r7 = increasing SDRC rate? (1 = yes, 0 = no) * */ ENTRY(omap3_sram_configure_core_dpll) @@ -77,9 +78,10 @@ ENTRY(omap3_sram_configure_core_dpll) ldr r4, [sp, #52] @ pull extra args off the stack ldr r5, [sp, #56] @ load extra args from the stack ldr r6, [sp, #60] @ load extra args from the stack + ldr r7, [sp, #64] @ load extra args from the stack dsb @ flush buffered writes to interconnect - cmp r3, #0x2 @ if increasing SDRC clk rate, - blne configure_sdrc @ program the SDRC regs early (for RFR) + cmp r7, #1 @ if increasing SDRC clk rate, + bleq configure_sdrc @ program the SDRC regs early (for RFR) cmp r4, #SDRC_UNLOCK_DLL @ set the intended DLL state bleq unlock_dll blne lock_dll @@ -89,7 +91,7 @@ ENTRY(omap3_sram_configure_core_dpll) cmp r4, #SDRC_UNLOCK_DLL @ wait for DLL status to change bleq wait_dll_unlock blne wait_dll_lock - cmp r3, #0x1 @ if increasing SDRC clk rate, + cmp r7, #1 @ if increasing SDRC clk rate, beq return_to_sdram @ return to SDRAM code, otherwise, bl configure_sdrc @ reprogram SDRC regs now mov r12, r5 diff --git a/arch/arm/plat-omap/include/mach/sram.h b/arch/arm/plat-omap/include/mach/sram.h index 4f87056..4d53cc5 100644 --- a/arch/arm/plat-omap/include/mach/sram.h +++ b/arch/arm/plat-omap/include/mach/sram.h @@ -24,7 +24,8 @@ extern u32 omap2_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass); extern u32 omap3_configure_core_dpll(u32 sdrc_rfr_ctrl, u32 sdrc_actim_ctrla, u32 sdrc_actim_ctrlb, u32 m2, - u32 unlock_dll, u32 f, u32 sdrc_mr); + u32 unlock_dll, u32 f, u32 sdrc_mr, + u32 inc); /* Do not use these */ extern void omap1_sram_reprogram_clock(u32 ckctl, u32 dpllctl); @@ -62,7 +63,8 @@ extern unsigned long omap243x_sram_reprogram_sdrc_sz; extern u32 omap3_sram_configure_core_dpll(u32 sdrc_rfr_ctrl, u32 sdrc_actim_ctrla, u32 sdrc_actim_ctrlb, u32 m2, - u32 unlock_dll, u32 f, u32 sdrc_mr); + u32 unlock_dll, u32 f, u32 sdrc_mr, + u32 inc); extern unsigned long omap3_sram_configure_core_dpll_sz; #endif diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c index 7dadf1a..65006df 100644 --- a/arch/arm/plat-omap/sram.c +++ b/arch/arm/plat-omap/sram.c @@ -372,16 +372,16 @@ static u32 (*_omap3_sram_configure_core_dpll)(u32 sdrc_rfr_ctrl, u32 sdrc_actim_ctrla, u32 sdrc_actim_ctrlb, u32 m2, u32 unlock_dll, - u32 f, u32 sdrc_mr); + u32 f, u32 sdrc_mr, u32 inc); u32 omap3_configure_core_dpll(u32 sdrc_rfr_ctrl, u32 sdrc_actim_ctrla, u32 sdrc_actim_ctrlb, u32 m2, u32 unlock_dll, - u32 f, u32 sdrc_mr) + u32 f, u32 sdrc_mr, u32 inc) { BUG_ON(!_omap3_sram_configure_core_dpll); return _omap3_sram_configure_core_dpll(sdrc_rfr_ctrl, sdrc_actim_ctrla, sdrc_actim_ctrlb, m2, - unlock_dll, f, sdrc_mr); + unlock_dll, f, sdrc_mr, inc); } /* REVISIT: Should this be same as omap34xx_sram_init() after off-idle? */ |