[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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