Re: [PATCH v4 1/2] OMAP3: SDRC: Dynamic Calculation of SDRC stall latency during DVFS

2010-03-21 Thread ambresh
Sripathy, Vishwanath wrote: + /* calculate the sram delay */ + delay_sram = (((mpurate / gt_rate) * diff) / (loop * 2)); + + error_gain = mpurate / gt_rate; + delay_sram = delay_sram + error_gain; Cosmetic changes: error_gain = mpurate / gt_rate;

RE: [PATCH v4 1/2] OMAP3: SDRC: Dynamic Calculation of SDRC stall latency during DVFS

2010-03-19 Thread Sripathy, Vishwanath
-Original Message- From: K, Ambresh Sent: Thursday, March 18, 2010 12:46 PM To: Gurav , Pramod Cc: linux-omap@vger.kernel.org; Reddy, Teerth; Sripathy, Vishwanath Subject: Re: [PATCH v4 1/2] OMAP3: SDRC: Dynamic Calculation of SDRC stall latency during DVFS Gurav , Pramod wrote

RE: [PATCH v4 1/2] OMAP3: SDRC: Dynamic Calculation of SDRC stall latency during DVFS

2010-03-18 Thread G, Manjunath Kondaiah
-Original Message- From: linux-omap-ow...@vger.kernel.org [mailto:linux-omap-ow...@vger.kernel.org] On Behalf Of Gurav , Pramod Sent: Thursday, March 18, 2010 10:26 AM To: linux-omap@vger.kernel.org Cc: Reddy, Teerth; Gurav , Pramod; Sripathy, Vishwanath Subject: [PATCH v4 1/2]

Re: [PATCH v4 1/2] OMAP3: SDRC: Dynamic Calculation of SDRC stall latency during DVFS

2010-03-18 Thread ambresh
Gurav , Pramod wrote: From: Teerth Reddy tee...@ti.com The patch has the changes to calculate the dpll3 clock stabilization delay dynamically. The SRAM delay is calibrated during bootup using the gptimers and used while calculating the stabilization delay. By using the dynamic method the

Re: [PATCH v4 1/2] OMAP3: SDRC: Dynamic Calculation of SDRC stall latency during DVFS

2010-03-18 Thread Kevin Hilman
G, Manjunath Kondaiah manj...@ti.com writes: +#ifdef CONFIG_ARCH_OMAP3 +void (*_omap3_sram_delay)(unsigned int); +unsigned int measure_sram_delay(unsigned int loop) +{ +static struct omap_dm_timer *gpt; +unsigned long flags, diff = 0, gt_rate, mpurate; +unsigned int

Re: [PATCH v4 1/2] OMAP3: SDRC: Dynamic Calculation of SDRC stall latency during DVFS

2010-03-18 Thread Kevin Hilman
Pramod Gurav pramod.gu...@ti.com writes: From: Teerth Reddy tee...@ti.com The patch has the changes to calculate the dpll3 clock stabilization delay dynamically. The SRAM delay is calibrated during bootup using the gptimers and used while calculating the stabilization delay. By using the