Commit 16a3c832 authored by Sekhar Nori's avatar Sekhar Nori Committed by Kevin Hilman
Browse files

davinci: add spi devices support for da830/omap-l137/am17x evm 



This patch adds the on-board SPI flash device to the
DA830/OMAP-L137/AM17x EVM. It also registers the SPI flash
device to the MTD subsystem.

Based on SPI flash device support for MityDSP-L138F platform.

Signed-off-by: default avatarSekhar Nori <nsekhar@ti.com>
[michael.williamson@criticallink.com: moved da830evm_spi0_pdata to devices-da8xx.c]
[michael.williamson@criticallink.com: moved da830evm_init_spi0 to devices-da8xx.c]
Signed-off-by: default avatarMichael Williamson <michael.williamson@criticallink.com>
Signed-off-by: default avatarKevin Hilman <khilman@ti.com>
parent fdce5568

arch/arm/mach-davinci/board-da830-evm.c

+67 −0
Original line number Diff line number Diff line
@@ -20,6 +20,8 @@ 
#include <linux/i2c/at24.h>

#include <linux/mtd/mtd.h>

#include <linux/mtd/partitions.h>

#include <linux/spi/spi.h>

#include <linux/spi/flash.h>



#include <asm/mach-types.h>

#include <asm/mach/arch.h>
@@ -30,6 +32,7 @@ 
#include <mach/da8xx.h>

#include <mach/usb.h>

#include <mach/aemif.h>

#include <mach/spi.h>



#define DA830_EVM_PHY_ID		""

/*
@@ -534,6 +537,64 @@ static struct edma_rsv_info da830_edma_rsv[] = { 
	},

};



static struct mtd_partition da830evm_spiflash_part[] = {

	[0] = {

		.name = "DSP-UBL",

		.offset = 0,

		.size = SZ_8K,

		.mask_flags = MTD_WRITEABLE,

	},

	[1] = {

		.name = "ARM-UBL",

		.offset = MTDPART_OFS_APPEND,

		.size = SZ_16K + SZ_8K,

		.mask_flags = MTD_WRITEABLE,

	},

	[2] = {

		.name = "U-Boot",

		.offset = MTDPART_OFS_APPEND,

		.size = SZ_256K - SZ_32K,

		.mask_flags = MTD_WRITEABLE,

	},

	[3] = {

		.name = "U-Boot-Environment",

		.offset = MTDPART_OFS_APPEND,

		.size = SZ_16K,

		.mask_flags = 0,

	},

	[4] = {

		.name = "Kernel",

		.offset = MTDPART_OFS_APPEND,

		.size = MTDPART_SIZ_FULL,

		.mask_flags = 0,

	},

};



static struct flash_platform_data da830evm_spiflash_data = {

	.name		= "m25p80",

	.parts		= da830evm_spiflash_part,

	.nr_parts	= ARRAY_SIZE(da830evm_spiflash_part),

	.type		= "w25x32",

};



static struct davinci_spi_config da830evm_spiflash_cfg = {

	.io_type	= SPI_IO_TYPE_DMA,

	.c2tdelay	= 8,

	.t2cdelay	= 8,

};



static struct spi_board_info da830evm_spi_info[] = {

	{

		.modalias		= "m25p80",

		.platform_data		= &da830evm_spiflash_data,

		.controller_data	= &da830evm_spiflash_cfg,

		.mode			= SPI_MODE_0,

		.max_speed_hz		= 30000000,

		.bus_num		= 0,

		.chip_select		= 0,

	},

};



static __init void da830_evm_init(void)

{

	struct davinci_soc_info *soc_info = &davinci_soc_info;
@@ -590,6 +651,12 @@ static __init void da830_evm_init(void) 
	ret = da8xx_register_rtc();

	if (ret)

		pr_warning("da830_evm_init: rtc setup failed: %d\n", ret);



	ret = da8xx_register_spi(0, da830evm_spi_info,

				 ARRAY_SIZE(da830evm_spi_info));

	if (ret)

		pr_warning("da830_evm_init: spi 0 registration failed: %d\n",

			   ret);

}



#ifdef CONFIG_SERIAL_8250_CONSOLE

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