Nyaaori/rockbox
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

imx233: prepare frequency scaling for stmp3700

Browse source 
Add entry for stmp3700 maximum frequency which is 320MHz.

Change-Id: I6db4aad4efa0a7c1347a1ceb262a0295f63057ae
This commit is contained in:
Amaury Pouly 2014-03-08 18:22:47 +01:00
parent 9fe3687923
commit 3e2f3efd89
2 changed files with 13 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
firmware/target/arm/imx233/system-imx233.c
View file

@ -263,15 +263,17 @@ struct cpufreq_profile_t
int arm_cache_timings;
};
#if IMX233_SUBTARGET >= 3780
#if IMX233_SUBTARGET >= 3700
static struct cpufreq_profile_t cpu_profiles[] =
{
/* clk_p@454.74 MHz, clk_h@130.91 MHz, clk_emi@130.91 MHz, VDDD@1.550 V */
/* clk_p@454.74 MHz, clk_h@151.58 MHz, clk_emi@130.91 MHz, VDDD@1.550 V */
{IMX233_CPUFREQ_454_MHz, 1550, 1450, 3, 1, 19, IMX233_EMIFREQ_130_MHz, 0},
/* clk_p@320.00 MHz, clk_h@106.66 MHz, clk_emi@130.91 MHz, VDDD@1.450 V */
{IMX233_CPUFREQ_320_MHz, 1450, 1350, 3, 1, 27, IMX233_EMIFREQ_130_MHz, 0},
/* clk_p@261.82 MHz, clk_h@130.91 MHz, clk_emi@130.91 MHz, VDDD@1.275 V */
{IMX233_CPUFREQ_261_MHz, 1275, 1175, 2, 1, 33, IMX233_EMIFREQ_130_MHz, 0},
/* clk_p@64 MHz, clk_h@64 MHz, clk_emi@64 MHz, VDDD@1.050 V */
{IMX233_CPUFREQ_64_MHz, 1050, 975, 1, 5, 27, IMX233_EMIFREQ_64_MHz, 0},
{IMX233_CPUFREQ_64_MHz, 1050, 975, 1, 5, 27, IMX233_EMIFREQ_64_MHz, 3},
/* dummy */
{0, 0, 0, 0, 0, 0, 0, 0}
};
@ -281,7 +283,7 @@ static struct cpufreq_profile_t cpu_profiles[] =
void imx233_set_cpu_frequency(long frequency)
{
#if IMX233_SUBTARGET >= 3780
#if IMX233_SUBTARGET >= 3700
/* don't change the frequency if it is useless (changes are expensive) */
if(cpu_frequency == frequency)
return;

11
firmware/target/arm/imx233/system-target.h
View file

@ -32,19 +32,22 @@
#include "regs/regs-usbphy.h"
/**
* Absolute maximum CPU speed: 454.74 MHz
* Intermediate CPU speeds: 392.73 MHz, 360MHz, 261.82 MHz, 64 MHz
* Absolute maximum CPU speed: 454.74 MHz (STMP3780), 320.00 MHz (STMP3700)
* Intermediate CPU speeds: 261.82 MHz, 64 MHz
* Absolute minimum CPU speed: 24 MHz */
#define IMX233_CPUFREQ_454_MHz 454740
#define IMX233_CPUFREQ_392_MHz 392730
#define IMX233_CPUFREQ_360_MHz 360000
#define IMX233_CPUFREQ_320_MHz 320000
#define IMX233_CPUFREQ_261_MHz 261820
#define IMX233_CPUFREQ_64_MHz 64000
#define IMX233_CPUFREQ_24_MHz 24000
#define CPUFREQ_DEFAULT IMX233_CPUFREQ_64_MHz
#define CPUFREQ_NORMAL IMX233_CPUFREQ_64_MHz
#if IMX233_SUBTARGET >= 3780
#define CPUFREQ_MAX IMX233_CPUFREQ_454_MHz
#elif IMX233_SUBTARGET >= 3700
#define CPUFREQ_MAX IMX233_CPUFREQ_320_MHz
#endif
#define CPUFREQ_SLEEP IMX233_CPUFREQ_64_MHz
void system_prepare_fw_start(void);