[U-Boot] [PATCH] thermal: imx_thermal: rework driver to be reused

Alonso Adrian aalonso at freescale.com
Tue Aug 25 20:56:39 CEST 2015


Hi Stefano,

> -----Original Message-----
> From: Stefano Babic [mailto:sbabic at denx.de]
> Sent: Tuesday, August 25, 2015 12:23 PM
> To: Alonso Lazcano Adrian-B38018 <aalonso at freescale.com>; u-
> boot at lists.denx.de; sbabic at denx.de
> Cc: otavio at ossystems.com.br; Estevam Fabio-R49496
> <Fabio.Estevam at freescale.com>; Li Frank-B20596 <Frank.Li at freescale.com>;
> Garg Nitin-B37173 <nitin.garg at freescale.com>
> Subject: Re: [PATCH] thermal: imx_thermal: rework driver to be reused
> 
> Hi Adrian,
> 
> On 25/08/2015 18:07, Adrian Alonso wrote:
> > - Rework imx_thermal driver to be used across i.MX
> >   processor that support thermal sensors
> 
> ok
> 
> > - Make read_cpu_temperature SoC dependent
> 
> Agree on that, but why moving into the soc / cpu file ?

[Adrian] Well I was following the same way as function get_cpu_temp_grade is implemented
In the soc/cpu file; seem to me that read_cpu_temperature could be moved in the same way.

> 
> We have a driver for a specific hardware. The driver supports more as one SOC.
> it is a common case. We have already such a cases, and the driver must have
> code for both of them.
> 
> Take as example the SPI driver (on u-boot or Linux). It supports multiple i.MXes
> without demanding code outside of the driver itself.
> 
[Adrian] Ok, I can re-implement as suggested either approach seem ok to me :)
> Something like:
> 
> read_cpu_temperature_mx6(....)
> {
> 
> }
> 
> read_cpu_temperature_mx7(....)
> {
> 
> }
> 
> 
> int read_cpu_temperature(struct udevice *dev) {
> 	<check cpu type, call right function>
> 
> }
> 
> I think moving "read_cpu_temperature" is wrong because everybody expects
> that all stuff related to the thermal is in the corresponding driver, that is imx-
> thermal.
> 
> 
> >
> > Signed-off-by: Adrian Alonso <aalonso at freescale.com>
> > Signed-off-by: Peng Fan <Peng.Fan at freescale.com>
> > ---
> >  arch/arm/cpu/armv7/mx6/soc.c              |  86 +++++++++++++++++++++++-
> >  arch/arm/imx-common/cpu.c                 |  13 ++--
> >  arch/arm/include/asm/arch-mx6/sys_proto.h |   2 +
> >  drivers/thermal/Makefile                  |   2 +-
> >  drivers/thermal/imx_thermal.c             | 106 ------------------------------
> >  include/configs/cgtqmx6eval.h             |   4 +-
> >  include/configs/embestmx6boards.h         |   2 +-
> >  include/configs/gw_ventana.h              |   2 +-
> >  include/configs/mx6cuboxi.h               |   2 +-
> >  include/configs/mx6sabre_common.h         |   2 +-
> >  include/configs/mx6slevk.h                |   2 +-
> >  include/configs/mx6sxsabresd.h            |   2 +-
> >  include/configs/mx6ul_14x14_evk.h         |   2 +-
> >  include/configs/tbs2910.h                 |   2 +-
> >  include/imx_thermal.h                     |  26 ++++++++
> >  15 files changed, 130 insertions(+), 125 deletions(-)
> >
> > diff --git a/arch/arm/cpu/armv7/mx6/soc.c
> > b/arch/arm/cpu/armv7/mx6/soc.c index 8ad8da8..68f4507 100644
> > --- a/arch/arm/cpu/armv7/mx6/soc.c
> > +++ b/arch/arm/cpu/armv7/mx6/soc.c
> > @@ -22,6 +22,7 @@
> >  #include <asm/arch/mxc_hdmi.h>
> >  #include <asm/arch/crm_regs.h>
> >  #include <dm.h>
> > +#include <div64.h>
> >  #include <imx_thermal.h>
> >
> >  enum ldo_reg {
> > @@ -38,7 +39,7 @@ struct scu_regs {
> >  	u32	fpga_rev;
> >  };
> >
> > -#if defined(CONFIG_IMX6_THERMAL)
> > +#if defined(CONFIG_IMX_THERMAL)
> >  static const struct imx_thermal_plat imx6_thermal_plat = {
> >  	.regs = (void *)ANATOP_BASE_ADDR,
> >  	.fuse_bank = 1,
> > @@ -171,6 +172,89 @@ u32 get_cpu_temp_grade(int *minc, int *maxc)
> >  	return val;
> >  }
> >
> > +int read_cpu_temperature(struct udevice *dev) {
> > +	int temperature;
> > +	unsigned int reg, n_meas;
> > +	const struct imx_thermal_plat *pdata = dev_get_platdata(dev);
> > +	struct anatop_regs *anatop = (struct anatop_regs *)pdata->regs;
> > +	struct thermal_data *priv = dev_get_priv(dev);
> > +	u32 fuse = priv->fuse;
> > +	int t1, n1;
> > +	u32 c1, c2;
> > +	u64 temp64;
> > +
> > +	/*
> > +	 * Sensor data layout:
> > +	 *   [31:20] - sensor value @ 25C
> > +	 * We use universal formula now and only need sensor value @ 25C
> > +	 * slope = 0.4297157 - (0.0015976 * 25C fuse)
> > +	 */
> > +	n1 = fuse >> 20;
> > +	t1 = 25; /* t1 always 25C */
> > +
> > +	/*
> > +	 * Derived from linear interpolation:
> > +	 * slope = 0.4297157 - (0.0015976 * 25C fuse)
> > +	 * slope = (FACTOR2 - FACTOR1 * n1) / FACTOR0
> > +	 * (Nmeas - n1) / (Tmeas - t1) = slope
> > +	 * We want to reduce this down to the minimum computation
> necessary
> > +	 * for each temperature read.  Also, we want Tmeas in millicelsius
> > +	 * and we don't want to lose precision from integer division. So...
> > +	 * Tmeas = (Nmeas - n1) / slope + t1
> > +	 * milli_Tmeas = 1000 * (Nmeas - n1) / slope + 1000 * t1
> > +	 * milli_Tmeas = -1000 * (n1 - Nmeas) / slope + 1000 * t1
> > +	 * Let constant c1 = (-1000 / slope)
> > +	 * milli_Tmeas = (n1 - Nmeas) * c1 + 1000 * t1
> > +	 * Let constant c2 = n1 *c1 + 1000 * t1
> > +	 * milli_Tmeas = c2 - Nmeas * c1
> > +	 */
> > +	temp64 = FACTOR0;
> > +	temp64 *= 1000;
> > +	do_div(temp64, FACTOR1 * n1 - FACTOR2);
> > +	c1 = temp64;
> > +	c2 = n1 * c1 + 1000 * t1;
> > +
> > +	/*
> > +	 * now we only use single measure, every time we read
> > +	 * the temperature, we will power on/down anadig thermal
> > +	 * module
> > +	 */
> > +	writel(TEMPSENSE0_POWER_DOWN, &anatop->tempsense0_clr);
> > +	writel(MISC0_REFTOP_SELBIASOFF, &anatop->ana_misc0_set);
> > +
> > +	/* setup measure freq */
> > +	reg = readl(&anatop->tempsense1);
> > +	reg &= ~TEMPSENSE1_MEASURE_FREQ;
> > +	reg |= MEASURE_FREQ;
> > +	writel(reg, &anatop->tempsense1);
> > +
> > +	/* start the measurement process */
> > +	writel(TEMPSENSE0_MEASURE_TEMP, &anatop->tempsense0_clr);
> > +	writel(TEMPSENSE0_FINISHED, &anatop->tempsense0_clr);
> > +	writel(TEMPSENSE0_MEASURE_TEMP, &anatop->tempsense0_set);
> > +
> > +	/* make sure that the latest temp is valid */
> > +	while ((readl(&anatop->tempsense0) &
> > +		TEMPSENSE0_FINISHED) == 0)
> > +		udelay(10000);
> > +
> > +	/* read temperature count */
> > +	reg = readl(&anatop->tempsense0);
> > +	n_meas = (reg & TEMPSENSE0_TEMP_CNT_MASK)
> > +		>> TEMPSENSE0_TEMP_CNT_SHIFT;
> > +	writel(TEMPSENSE0_FINISHED, &anatop->tempsense0_clr);
> > +
> > +	/* milli_Tmeas = c2 - Nmeas * c1 */
> > +	temperature = (long)(c2 - n_meas * c1)/1000;
> > +
> > +	/* power down anatop thermal sensor */
> > +	writel(TEMPSENSE0_POWER_DOWN, &anatop->tempsense0_set);
> > +	writel(MISC0_REFTOP_SELBIASOFF, &anatop->ana_misc0_clr);
> > +
> > +	return temperature;
> > +}
> > +
> >  #ifdef CONFIG_REVISION_TAG
> >  u32 __weak get_board_rev(void)
> >  {
> > diff --git a/arch/arm/imx-common/cpu.c b/arch/arm/imx-common/cpu.c
> > index e27546c..a5efbd5 100644
> > --- a/arch/arm/imx-common/cpu.c
> > +++ b/arch/arm/imx-common/cpu.c
> > @@ -154,14 +154,13 @@ int print_cpuinfo(void)
> >  	u32 cpurev;
> >  	__maybe_unused u32 max_freq;
> >
> > -#if defined(CONFIG_MX6) && defined(CONFIG_IMX6_THERMAL)
> > -	struct udevice *thermal_dev;
> > -	int cpu_tmp, minc, maxc, ret;
> > -#endif
> > -
> >  	cpurev = get_cpu_rev();
> >
> > -#if defined(CONFIG_MX6)
> > +#if defined(CONFIG_IMX_THERMAL)
> > +	struct udevice *thermal_dev;
> > +	int cpu_tmp, ret;
> > +	int minc, maxc;
> > +
> >  	printf("CPU:   Freescale i.MX%s rev%d.%d",
> >  	       get_imx_type((cpurev & 0xFF000) >> 12),
> >  	       (cpurev & 0x000F0) >> 4,
> > @@ -181,7 +180,7 @@ int print_cpuinfo(void)
> >  		mxc_get_clock(MXC_ARM_CLK) / 1000000);  #endif
> >
> > -#if defined(CONFIG_MX6) && defined(CONFIG_IMX6_THERMAL)
> > +#if defined(CONFIG_IMX_THERMAL)
> >  	puts("CPU:   ");
> >  	switch (get_cpu_temp_grade(&minc, &maxc)) {
> >  	case TEMP_AUTOMOTIVE:
> > diff --git a/arch/arm/include/asm/arch-mx6/sys_proto.h
> > b/arch/arm/include/asm/arch-mx6/sys_proto.h
> > index eee8ca8..c4e6ddc 100644
> > --- a/arch/arm/include/asm/arch-mx6/sys_proto.h
> > +++ b/arch/arm/include/asm/arch-mx6/sys_proto.h
> > @@ -8,6 +8,7 @@
> >  #ifndef _SYS_PROTO_H_
> >  #define _SYS_PROTO_H_
> >
> > +#include <dm.h>
> >  #include <asm/imx-common/regs-common.h>  #include "../arch-imx/cpu.h"
> >
> > @@ -18,6 +19,7 @@ u32 get_nr_cpus(void);
> >  u32 get_cpu_rev(void);
> >  u32 get_cpu_speed_grade_hz(void);
> >  u32 get_cpu_temp_grade(int *minc, int *maxc);
> > +int read_cpu_temperature(struct udevice *dev);
> >
> >  /* returns MXC_CPU_ value */
> >  #define cpu_type(rev) (((rev) >> 12) & 0xff) diff --git
> > a/drivers/thermal/Makefile b/drivers/thermal/Makefile index
> > 6d4cacd..d768f5e 100644
> > --- a/drivers/thermal/Makefile
> > +++ b/drivers/thermal/Makefile
> > @@ -6,4 +6,4 @@
> >  #
> >
> >  obj-$(CONFIG_DM_THERMAL) += thermal-uclass.o
> > -obj-$(CONFIG_IMX6_THERMAL) += imx_thermal.o
> > +obj-$(CONFIG_IMX_THERMAL) += imx_thermal.o
> > diff --git a/drivers/thermal/imx_thermal.c
> > b/drivers/thermal/imx_thermal.c index 3c6c967..f037f81 100644
> > --- a/drivers/thermal/imx_thermal.c
> > +++ b/drivers/thermal/imx_thermal.c
> > @@ -8,7 +8,6 @@
> >
> >  #include <config.h>
> >  #include <common.h>
> > -#include <div64.h>
> >  #include <fuse.h>
> >  #include <asm/io.h>
> >  #include <asm/arch/clock.h>
> > @@ -19,111 +18,6 @@
> >  #include <thermal.h>
> >  #include <imx_thermal.h>
> >
> > -/* board will busyloop until this many degrees C below CPU max
> temperature */
> > -#define TEMPERATURE_HOT_DELTA   5 /* CPU maxT - 5C */
> > -#define FACTOR0			10000000
> > -#define FACTOR1			15976
> > -#define FACTOR2			4297157
> > -#define MEASURE_FREQ		327
> > -
> > -#define TEMPSENSE0_TEMP_CNT_SHIFT	8
> > -#define TEMPSENSE0_TEMP_CNT_MASK	(0xfff <<
> TEMPSENSE0_TEMP_CNT_SHIFT)
> > -#define TEMPSENSE0_FINISHED		(1 << 2)
> > -#define TEMPSENSE0_MEASURE_TEMP		(1 << 1)
> > -#define TEMPSENSE0_POWER_DOWN		(1 << 0)
> > -#define MISC0_REFTOP_SELBIASOFF		(1 << 3)
> > -#define TEMPSENSE1_MEASURE_FREQ		0xffff
> > -
> > -struct thermal_data {
> > -	unsigned int fuse;
> > -	int critical;
> > -	int minc;
> > -	int maxc;
> > -};
> > -
> > -static int read_cpu_temperature(struct udevice *dev) -{
> > -	int temperature;
> > -	unsigned int reg, n_meas;
> > -	const struct imx_thermal_plat *pdata = dev_get_platdata(dev);
> > -	struct anatop_regs *anatop = (struct anatop_regs *)pdata->regs;
> > -	struct thermal_data *priv = dev_get_priv(dev);
> > -	u32 fuse = priv->fuse;
> > -	int t1, n1;
> > -	u32 c1, c2;
> > -	u64 temp64;
> > -
> > -	/*
> > -	 * Sensor data layout:
> > -	 *   [31:20] - sensor value @ 25C
> > -	 * We use universal formula now and only need sensor value @ 25C
> > -	 * slope = 0.4297157 - (0.0015976 * 25C fuse)
> > -	 */
> > -	n1 = fuse >> 20;
> > -	t1 = 25; /* t1 always 25C */
> > -
> > -	/*
> > -	 * Derived from linear interpolation:
> > -	 * slope = 0.4297157 - (0.0015976 * 25C fuse)
> > -	 * slope = (FACTOR2 - FACTOR1 * n1) / FACTOR0
> > -	 * (Nmeas - n1) / (Tmeas - t1) = slope
> > -	 * We want to reduce this down to the minimum computation
> necessary
> > -	 * for each temperature read.  Also, we want Tmeas in millicelsius
> > -	 * and we don't want to lose precision from integer division. So...
> > -	 * Tmeas = (Nmeas - n1) / slope + t1
> > -	 * milli_Tmeas = 1000 * (Nmeas - n1) / slope + 1000 * t1
> > -	 * milli_Tmeas = -1000 * (n1 - Nmeas) / slope + 1000 * t1
> > -	 * Let constant c1 = (-1000 / slope)
> > -	 * milli_Tmeas = (n1 - Nmeas) * c1 + 1000 * t1
> > -	 * Let constant c2 = n1 *c1 + 1000 * t1
> > -	 * milli_Tmeas = c2 - Nmeas * c1
> > -	 */
> > -	temp64 = FACTOR0;
> > -	temp64 *= 1000;
> > -	do_div(temp64, FACTOR1 * n1 - FACTOR2);
> > -	c1 = temp64;
> > -	c2 = n1 * c1 + 1000 * t1;
> > -
> > -	/*
> > -	 * now we only use single measure, every time we read
> > -	 * the temperature, we will power on/down anadig thermal
> > -	 * module
> > -	 */
> > -	writel(TEMPSENSE0_POWER_DOWN, &anatop->tempsense0_clr);
> > -	writel(MISC0_REFTOP_SELBIASOFF, &anatop->ana_misc0_set);
> > -
> > -	/* setup measure freq */
> > -	reg = readl(&anatop->tempsense1);
> > -	reg &= ~TEMPSENSE1_MEASURE_FREQ;
> > -	reg |= MEASURE_FREQ;
> > -	writel(reg, &anatop->tempsense1);
> > -
> > -	/* start the measurement process */
> > -	writel(TEMPSENSE0_MEASURE_TEMP, &anatop->tempsense0_clr);
> > -	writel(TEMPSENSE0_FINISHED, &anatop->tempsense0_clr);
> > -	writel(TEMPSENSE0_MEASURE_TEMP, &anatop->tempsense0_set);
> > -
> > -	/* make sure that the latest temp is valid */
> > -	while ((readl(&anatop->tempsense0) &
> > -		TEMPSENSE0_FINISHED) == 0)
> > -		udelay(10000);
> > -
> > -	/* read temperature count */
> > -	reg = readl(&anatop->tempsense0);
> > -	n_meas = (reg & TEMPSENSE0_TEMP_CNT_MASK)
> > -		>> TEMPSENSE0_TEMP_CNT_SHIFT;
> > -	writel(TEMPSENSE0_FINISHED, &anatop->tempsense0_clr);
> > -
> > -	/* milli_Tmeas = c2 - Nmeas * c1 */
> > -	temperature = (long)(c2 - n_meas * c1)/1000;
> > -
> > -	/* power down anatop thermal sensor */
> > -	writel(TEMPSENSE0_POWER_DOWN, &anatop->tempsense0_set);
> > -	writel(MISC0_REFTOP_SELBIASOFF, &anatop->ana_misc0_clr);
> > -
> > -	return temperature;
> > -}
> > -
> >  int imx_thermal_get_temp(struct udevice *dev, int *temp)  {
> >  	struct thermal_data *priv = dev_get_priv(dev); diff --git
> > a/include/configs/cgtqmx6eval.h b/include/configs/cgtqmx6eval.h index
> > fb5b82e..c21f178 100644
> > --- a/include/configs/cgtqmx6eval.h
> > +++ b/include/configs/cgtqmx6eval.h
> > @@ -33,10 +33,10 @@
> >  #define CONFIG_CMD_BMODE
> >
> >  /* Thermal support */
> > -#define CONFIG_IMX6_THERMAL
> > +#define CONFIG_IMX_THERMAL
> >
> >  #define CONFIG_CMD_FUSE
> > -#if defined(CONFIG_CMD_FUSE) || defined(CONFIG_IMX6_THERMAL)
> > +#if defined(CONFIG_CMD_FUSE) || defined(CONFIG_IMX_THERMAL)
> >  #define CONFIG_MXC_OCOTP
> >  #endif
> >
> > diff --git a/include/configs/embestmx6boards.h
> > b/include/configs/embestmx6boards.h
> > index 12744a6..58cee96 100644
> > --- a/include/configs/embestmx6boards.h
> > +++ b/include/configs/embestmx6boards.h
> > @@ -19,7 +19,7 @@
> >
> >  #define PHYS_SDRAM_SIZE		(1u * 1024 * 1024 * 1024)
> >
> > -#define CONFIG_IMX6_THERMAL
> > +#define CONFIG_IMX_THERMAL
> >
> >  /* Size of malloc() pool */
> >  #define CONFIG_SYS_MALLOC_LEN		(10 * SZ_1M)
> > diff --git a/include/configs/gw_ventana.h
> > b/include/configs/gw_ventana.h index 8b9d922..231bea7 100644
> > --- a/include/configs/gw_ventana.h
> > +++ b/include/configs/gw_ventana.h
> > @@ -57,7 +57,7 @@
> >  #define CONFIG_CMD_GPIO
> >
> >  /* Thermal */
> > -#define CONFIG_IMX6_THERMAL
> > +#define CONFIG_IMX_THERMAL
> >
> >  /* Serial */
> >  #define CONFIG_MXC_UART
> > diff --git a/include/configs/mx6cuboxi.h b/include/configs/mx6cuboxi.h
> > index 634a09f..6e89dd1 100644
> > --- a/include/configs/mx6cuboxi.h
> > +++ b/include/configs/mx6cuboxi.h
> > @@ -14,7 +14,7 @@
> >  #define CONFIG_SPL_MMC_SUPPORT
> >  #include "imx6_spl.h"
> >
> > -#define CONFIG_IMX6_THERMAL
> > +#define CONFIG_IMX_THERMAL
> >
> >  #define CONFIG_SYS_MALLOC_LEN		(10 * SZ_1M)
> >  #define CONFIG_BOARD_EARLY_INIT_F
> > diff --git a/include/configs/mx6sabre_common.h
> > b/include/configs/mx6sabre_common.h
> > index 6a57841..98eb042 100644
> > --- a/include/configs/mx6sabre_common.h
> > +++ b/include/configs/mx6sabre_common.h
> > @@ -11,7 +11,7 @@
> >
> >  #include "mx6_common.h"
> >
> > -#define CONFIG_IMX6_THERMAL
> > +#define CONFIG_IMX_THERMAL
> >
> >  /* Size of malloc() pool */
> >  #define CONFIG_SYS_MALLOC_LEN		(10 * SZ_1M)
> > diff --git a/include/configs/mx6slevk.h b/include/configs/mx6slevk.h
> > index 3cecd94..58e59d8 100644
> > --- a/include/configs/mx6slevk.h
> > +++ b/include/configs/mx6slevk.h
> > @@ -190,6 +190,6 @@
> >  #define CONFIG_SYS_MMC_ENV_DEV		1	/* SDHC2*/
> >  #endif
> >
> > -#define CONFIG_IMX6_THERMAL
> > +#define CONFIG_IMX_THERMAL
> >
> >  #endif				/* __CONFIG_H */
> > diff --git a/include/configs/mx6sxsabresd.h
> > b/include/configs/mx6sxsabresd.h index 848bdcd..381eaa2 100644
> > --- a/include/configs/mx6sxsabresd.h
> > +++ b/include/configs/mx6sxsabresd.h
> > @@ -176,7 +176,7 @@
> >  #define CONFIG_PCIE_IMX_POWER_GPIO	IMX_GPIO_NR(2, 1)
> >  #endif
> >
> > -#define CONFIG_IMX6_THERMAL
> > +#define CONFIG_IMX_THERMAL
> >
> >  #define CONFIG_CMD_TIME
> >
> > diff --git a/include/configs/mx6ul_14x14_evk.h
> > b/include/configs/mx6ul_14x14_evk.h
> > index 6ae736f..7c48313 100644
> > --- a/include/configs/mx6ul_14x14_evk.h
> > +++ b/include/configs/mx6ul_14x14_evk.h
> > @@ -221,6 +221,6 @@
> >  #define CONFIG_USB_MAX_CONTROLLER_COUNT 2  #endif
> >
> > -#define CONFIG_IMX6_THERMAL
> > +#define CONFIG_IMX_THERMAL
> >
> >  #endif
> > diff --git a/include/configs/tbs2910.h b/include/configs/tbs2910.h
> > index 66cb274..70b4403 100644
> > --- a/include/configs/tbs2910.h
> > +++ b/include/configs/tbs2910.h
> > @@ -20,7 +20,7 @@
> >
> >  #define CONFIG_SYS_HZ			1000
> >
> > -#define CONFIG_IMX6_THERMAL
> > +#define CONFIG_IMX_THERMAL
> >
> >  /* Physical Memory Map */
> >  #define CONFIG_NR_DRAM_BANKS		1
> > diff --git a/include/imx_thermal.h b/include/imx_thermal.h index
> > 8ce333c..62fed3b 100644
> > --- a/include/imx_thermal.h
> > +++ b/include/imx_thermal.h
> > @@ -20,4 +20,30 @@ struct imx_thermal_plat {
> >  	int fuse_word;
> >  };
> >
> > +struct thermal_data {
> > +	unsigned int fuse;
> > +	int critical;
> > +	int minc;
> > +	int maxc;
> > +};
> > +
> > +/* board will busyloop until this many degrees C below CPU max
> temperature */
> > +#define TEMPERATURE_HOT_DELTA   5 /* CPU maxT - 5C */
> > +#define FACTOR0                 10000000
> > +#define FACTOR1                 15976
> > +#define FACTOR2                 4297157
> > +#define MEASURE_FREQ            327
> > +
> > +#define TEMPERATURE_MIN         -40
> > +#define TEMPERATURE_HOT         85
> > +#define TEMPERATURE_MAX         125
> > +
> > +#define TEMPSENSE0_TEMP_CNT_SHIFT       8
> > +#define TEMPSENSE0_TEMP_CNT_MASK        (0xfff <<
> TEMPSENSE0_TEMP_CNT_SHIFT)
> > +#define TEMPSENSE0_FINISHED             (1 << 2)
> > +#define TEMPSENSE0_MEASURE_TEMP         (1 << 1)
> > +#define TEMPSENSE0_POWER_DOWN           (1 << 0)
> > +#define MISC0_REFTOP_SELBIASOFF         (1 << 3)
> > +#define TEMPSENSE1_MEASURE_FREQ         0xffff
> > +
> >  #endif	/* _IMX_THERMAL_H_ */
> >
> 
> Regards,
> Stefano
> 
> --
> ============================================================
> =========
> DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
> ============================================================
> =========


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