<font size=2 face="sans-serif">Whooosch and it worked!</font>
<br>
<br><font size=2 face="sans-serif">devinfo </font>
<br><font size=2 face="sans-serif">devices:</font>
<br><font size=2 face="sans-serif">...</font>
<br><font size=2 face="sans-serif">`---- mem1</font>
<br><font size=2 face="sans-serif"> `---- 0x00000000-0xfffffffe:
/dev/mem</font>
<br><font size=2 face="sans-serif">`---- i2c-imx2</font>
<br><font size=2 face="sans-serif">`---- imx_spi0</font>
<br><font size=2 face="sans-serif"> `---- m25p0</font>
<br><font size=2 face="sans-serif">`---- fec_imx0</font>
<br><font size=2 face="sans-serif"> `---- miidev0</font>
<br><font size=2 face="sans-serif">...</font>
<br>
<br><font size=2 face="sans-serif">barebox:/ devinfo m25p0</font>
<br><font size=2 face="sans-serif">resources:</font>
<br><font size=2 face="sans-serif">driver: none</font>
<br>
<br><font size=2 face="sans-serif">no parameters available</font>
<br><font size=2 face="sans-serif">barebox:/ </font>
<br>
<br><font size=2 face="sans-serif">But why is driver in devinfo = none?</font>
<br>
<br><font size=2 face="sans-serif">christian</font>
<br>
<br>
<br><font size=1 color=#5f5f5f face="sans-serif">Von:
</font><font size=1 face="sans-serif">Franck Jullien <franck.jullien@gmail.com></font>
<br><font size=1 color=#5f5f5f face="sans-serif">An:
</font><font size=1 face="sans-serif">christian.buettner@rafi.de,
</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Kopie:
</font><font size=1 face="sans-serif">barebox@lists.infradead.org</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Datum:
</font><font size=1 face="sans-serif">30.07.2012 10:07</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Betreff:
</font><font size=1 face="sans-serif">Re: Re: nor
flash board init code</font>
<br>
<hr noshade>
<br>
<br>
<br><tt><font size=2>Hi,<br>
<br>
2012/7/30 <christian.buettner@rafi.de><br>
><br>
> Thanks for the code!<br>
><br>
> Here is my approach:<br>
><br>
> const struct flash_platform_data tx53_flash = {<br>
> .type = "mx25l8005",<br>
> .name = "spi_flash",<br>
> };<br>
><br>
><br>
> //MX25L8005MC-15G<br>
> static const struct spi_board_info mx53_spi_board_info[] = {<br>
> {<br>
> .name = "mx25l8005",<br>
<br>
<br>
Here sould be the driver name: .name = "m25p",<br>
<br>
><br>
> .max_speed_hz
= 70000000,<br>
> .bus_num =
0,<br>
> .chip_select
= 0,<br>
> .bits_per_word
= 8,<br>
> .mode = SPI_MODE_0,<br>
> .platform_data
= &tx53_flash,<br>
> },<br>
> };<br>
><br>
> static struct spi_imx_master tx53_spi = {<br>
> .num_chipselect
= 1,<br>
> };<br>
><br>
><br>
> init_devices {<br>
><br>
> ...<br>
> spi_register_board_info(mx53_spi_board_info,<br>
>
ARRAY_SIZE(mx53_spi_board_info));<br>
><br>
> add_generic_device("m25p",-1,"m25p",MX53_ECSPI1_BASE_ADDR,64
* 1024,IORESOURCE_MEM,&mx53_spi_board_info);<br>
<br>
You have to add the SPI master device here. The m25p device will be<br>
probed automagically (AFAIR).<br>
<br>
<br>
><br>
> ...<br>
> }<br>
><br>
><br>
> When the m25p80.c driver probes i get no spi instance:<br>
><br>
> static int m25p_probe(struct device_d *dev) {<br>
> struct spi_device *spi = (struct spi_device
*)dev->type_data;<br>
> const struct spi_device_id
*id = NULL;<br>
> ...<br>
> }<br>
><br>
> struct spi_device *spi is always null<br>
><br>
> Whats wrong here?<br>
><br>
> christian<br>
><br>
><br>
><br>
> Von: Franck Jullien <franck.jullien@gmail.com><br>
> An: christian.buettner@rafi.de,<br>
> Kopie: barebox@lists.infradead.org<br>
> Datum: 27.07.2012 13:33<br>
> Betreff: Re: nor flash board init code<br>
> ________________________________<br>
><br>
><br>
><br>
> 2012/7/25 <christian.buettner@rafi.de><br>
> ><br>
> > hi all,<br>
> > is there any example board init code to load the mx25l8005 spi
nor-flash through the imx53 (TX53 from KARO)?<br>
> > I want to use the m25p80 driver to read and write.<br>
> ><br>
> > christian<br>
> > _______________________________________________<br>
> > barebox mailing list<br>
> > barebox@lists.infradead.org<br>
> > </font></tt><a href=http://lists.infradead.org/mailman/listinfo/barebox><tt><font size=2>http://lists.infradead.org/mailman/listinfo/barebox</font></tt></a><tt><font size=2><br>
> ><br>
><br>
> Hi Christian,<br>
><br>
> This is what I use with the Altera SPI controller + an SPI flash device:<br>
><br>
> </font></tt><a href="http://www.elec4fun.fr/index.php?option=com_content&view=article&id=10&Itemid=153"><tt><font size=2>http://www.elec4fun.fr/index.php?option=com_content&view=article&id=10&Itemid=153</font></tt></a><tt><font size=2><br>
><br>
> static struct spi_altera_master altera_spi_0_data = {<br>
> .num_chipselect = 1,<br>
> .spi_mode = 0, /* SPI mode
of the EPCS flash controller */<br>
> .databits = 8, /* Data length
of the EPCS flash controller */<br>
> .speed = 20000000, /* EPCS flash controller
speed */<br>
> };<br>
><br>
><br>
> static struct flash_platform_data epcs_flash = {<br>
> .name = "epcs", /* Cdev
name, optional */<br>
> .type = "m25p40", /* Device type,
required for non JEDEC chips */<br>
> };<br>
><br>
> static struct spi_board_info generic_spi_board_info[] = {<br>
> {<br>
> .name = "m25p",<br>
> .max_speed_hz = 20000000,<br>
> .bus_num = 0,<br>
> .chip_select = 0,<br>
> .bits_per_word = 8,<br>
> .mode = SPI_MODE_0,<br>
> .platform_data = &epcs_flash,<br>
> }<br>
> };<br>
><br>
> static int myboard_devices_init(void) {<br>
><br>
> ...<br>
><br>
> spi_register_board_info(myboard_spi_board_info,<br>
> ARRAY_SIZE(myboard_spi_board_info));<br>
><br>
> add_generic_device("altera_spi", -1, NULL, NIOS_SOPC_EPCS_BASE,
0x18,<br>
> IORESOURCE_MEM,
&altera_spi_0_data);<br>
><br>
> ...<br>
><br>
> Franck.<br>
><br>
<br>
Franck.<br>
</font></tt>
<br>