Em quinta-feira, 23 de janeiro de 2014 13h59min19s UTC-3, vinic...@gmail.com  
escreveu:
> Em terça-feira, 21 de janeiro de 2014 08h44min19s UTC-3, Tomas Novotny  
> escreveu:
> 
> > Hi All,
> 
> > 
> 
> > 
> 
> > 
> 
> > I'm trying to use some SPI devices on A10s OLinuXino. It was flawless for
> 
> > 
> 
> > simple MCU driven by spidev (everything needed is defined in FEX). Now I'm
> 
> > 
> 
> > trying to connect external CAN over SPI (MCP2515).
> 
> > 
> 
> >     The mcp251x driver needs to pass oscillator frequency through the
> 
> > 
> 
> > mcp251x_platform_data structure. Is there any clean way how to do it on 3.4
> 
> > 
> 
> > linux-sunxi? It seems that platform data for SPI board aren't passed by 
> > sunxi
> 
> > 
> 
> > SPI driver.
> 
> > 
> 
> >     I'm using Debian image with custom built 3.4.61 linux-sunxi.
> 
> > 
> 
> >     Thanks to all,
> 
> > 
> 
> > 
> 
> > 
> 
> >     Tomas
> 
> 
> 
> You can change by yourself spi_sunxi.c, something like that:
> 
> 
> 
> diff --git a/drivers/spi/spi_sunxi.c b/drivers/spi/spi_sunxi.c
> 
> index a3792fd..2f0ab7c 100644
> 
> --- a/drivers/spi/spi_sunxi.c
> 
> +++ b/drivers/spi/spi_sunxi.c
> 
> @@ -28,6 +28,7 @@
> 
>  
> 
>  #include <linux/spi/spi.h>
> 
>  #include <linux/spi/spi_bitbang.h>
> 
> +#include <linux/can/platform/mcp251x.h>
> 
>  
> 
>  #include <asm/io.h>
> 
>  #include <plat/dma.h>
> 
> @@ -134,6 +135,10 @@ struct sunxi_spi {
> 
>       int cs_bitmap;/* cs0- 0x1; cs1-0x2, cs0&cs1-0x3. */
> 
>  };
> 
>  
> 
> +static struct mcp251x_platform_data mcp251x_info = {
> 
> +         .oscillator_frequency = 8000000,
> 
> +};
> 
> +

Sorry, something like that:

diff --git a/drivers/spi/spi_sunxi.c b/drivers/spi/spi_sunxi.c
index a3792fd..2f0ab7c 100644
--- a/drivers/spi/spi_sunxi.c
+++ b/drivers/spi/spi_sunxi.c
@@ -28,6 +28,7 @@
 
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_bitbang.h>
+#include <linux/can/platform/mcp251x.h>
 
 #include <asm/io.h>
 #include <plat/dma.h>
@@ -134,6 +135,10 @@ struct sunxi_spi {
        int cs_bitmap;/* cs0- 0x1; cs1-0x2, cs0&cs1-0x3. */
 };
 
+static struct mcp251x_platform_data mcp251x_info = {
+         .oscillator_frequency = 8000000,
+};
+
 /* config chip select */
 s32 aw_spi_set_cs(u32 chipselect, void *base_addr)
 {
@@ -1922,6 +1927,7 @@ int __devinit spi_sunxi_register_spidev(void)
     {
         board = &spi_boards[i];
         sprintf(spi_board_name, "spi_board%d", i);
+        board->platform_data = &mcp251x_info;
         ret = script_parser_fetch(spi_board_name, "modalias", 
(void*)board->modalias, sizeof(char*));
         if(ret != SCRIPT_PARSER_OK) {
             spi_msg("Get spi devices modalias failed\n");

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