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Commit c6e34a4c authored by Arnaud Patard's avatar Arnaud Patard Committed by Sascha Hauer
Browse files

efikamx: add spi nor support 



On efikamx, uboot is stored on a nor spi flash. Add support for it

Signed-off-by: default avatarArnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent 0dea1c74

arch/arm/mach-mx5/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -83,6 +83,7 @@ config MACH_MX51_EFIKAMX 
	bool "Support MX51 Genesi Efika MX nettop"

	select IMX_HAVE_PLATFORM_ESDHC

	select IMX_HAVE_PLATFORM_IMX_UART

	select IMX_HAVE_PLATFORM_SPI_IMX

	help

	  Include support for Genesi Efika MX nettop. This includes specific

	  configurations for the board and its peripherals.

arch/arm/mach-mx5/board-mx51_efikamx.c

+58 −0
Original line number Diff line number Diff line
@@ -23,6 +23,8 @@ 
#include <linux/delay.h>

#include <linux/io.h>

#include <linux/fsl_devices.h>

#include <linux/spi/flash.h>

#include <linux/spi/spi.h>



#include <mach/common.h>

#include <mach/hardware.h>
@@ -51,6 +53,9 @@ 


#define EFIKAMX_POWER_KEY	(1*32 + 31)



#define EFIKAMX_SPI_CS0		(3*32 + 24)

#define EFIKAMX_SPI_CS1		(3*32 + 25)



/* the pci ids pin have pull up. they're driven low according to board id */

#define MX51_PAD_PCBID0	IOMUX_PAD(0x518, 0x130, 3, 0x0,   0, PAD_CTL_PUS_100K_UP)

#define MX51_PAD_PCBID1	IOMUX_PAD(0x51C, 0x134, 3, 0x0,   0, PAD_CTL_PUS_100K_UP)
@@ -97,6 +102,14 @@ static iomux_v3_cfg_t mx51efikamx_pads[] = { 


	/* power key */

	MX51_PAD_PWRKEY,



	/* spi */

	MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI,

	MX51_PAD_CSPI1_MISO__ECSPI1_MISO,

	MX51_PAD_CSPI1_SS0__GPIO_4_24,

	MX51_PAD_CSPI1_SS1__GPIO_4_25,

	MX51_PAD_CSPI1_RDY__ECSPI1_RDY,

	MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK,

};



/* Serial ports */
@@ -242,6 +255,47 @@ static const struct gpio_keys_platform_data mx51_efikamx_powerkey_data __initcon 
	.nbuttons = ARRAY_SIZE(mx51_efikamx_powerkey),

};



static struct mtd_partition mx51_efikamx_spi_nor_partitions[] = {

	{

	 .name = "u-boot",

	 .offset = 0,

	 .size = SZ_256K,

	},

	{

	  .name = "config",

	  .offset = MTDPART_OFS_APPEND,

	  .size = SZ_64K,

	},

};



static struct flash_platform_data mx51_efikamx_spi_flash_data = {

	.name		= "spi_flash",

	.parts		= mx51_efikamx_spi_nor_partitions,

	.nr_parts	= ARRAY_SIZE(mx51_efikamx_spi_nor_partitions),

	.type		= "sst25vf032b",

};



static struct spi_board_info mx51_efikamx_spi_board_info[] __initdata = {

	{

		.modalias = "m25p80",

		.max_speed_hz = 25000000,

		.bus_num = 0,

		.chip_select = 1,

		.platform_data = &mx51_efikamx_spi_flash_data,

		.irq = -1,

	},

};



static int mx51_efikamx_spi_cs[] = {

	EFIKAMX_SPI_CS0,

	EFIKAMX_SPI_CS1,

};



static const struct spi_imx_master mx51_efikamx_spi_pdata __initconst = {

	.chipselect     = mx51_efikamx_spi_cs,

	.num_chipselect = ARRAY_SIZE(mx51_efikamx_spi_cs),

};



static void __init mxc_board_init(void)

{

	mxc_iomux_v3_setup_multiple_pads(mx51efikamx_pads,
@@ -259,6 +313,10 @@ static void __init mxc_board_init(void) 


	platform_device_register(&mx51_efikamx_leds_device);

	imx51_add_gpio_keys(&mx51_efikamx_powerkey_data);



	spi_register_board_info(mx51_efikamx_spi_board_info,

		ARRAY_SIZE(mx51_efikamx_spi_board_info));

	imx51_add_ecspi(0, &mx51_efikamx_spi_pdata);

}



static void __init mx51_efikamx_timer_init(void)