Commit fdce5568 authored by Sekhar Nori's avatar Sekhar Nori Committed by Kevin Hilman
Browse files

davinci: add spi devices support for da850/omap-l138/am18x evm 



This patch adds the on-board SPI flash device to the
DA850/OMAP-L138/AM18x 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 da850_evm_spi1_pdata to devices-da8xx.c]
[michael.williamson@criticallink.com: moved da850evm_init_spi1 to devices-da8xx.c]
Signed-off-by: default avatarMichael Williamson <michael.williamson@criticallink.com>
Signed-off-by: default avatarKevin Hilman <khilman@ti.com>
parent dd561c6a

arch/arm/mach-davinci/board-da850-evm.c

+73 −0
Original line number Diff line number Diff line
@@ -29,6 +29,8 @@ 
#include <linux/regulator/machine.h>

#include <linux/regulator/tps6507x.h>

#include <linux/input/tps6507x-ts.h>

#include <linux/spi/spi.h>

#include <linux/spi/flash.h>



#include <asm/mach-types.h>

#include <asm/mach/arch.h>
@@ -38,6 +40,7 @@ 
#include <mach/nand.h>

#include <mach/mux.h>

#include <mach/aemif.h>

#include <mach/spi.h>



#define DA850_EVM_PHY_ID		"0:00"

#define DA850_LCD_PWR_PIN		GPIO_TO_PIN(2, 8)
@@ -48,6 +51,70 @@ 


#define DA850_MII_MDIO_CLKEN_PIN	GPIO_TO_PIN(2, 6)



static struct mtd_partition da850evm_spiflash_part[] = {

	[0] = {

		.name = "UBL",

		.offset = 0,

		.size = SZ_64K,

		.mask_flags = MTD_WRITEABLE,

	},

	[1] = {

		.name = "U-Boot",

		.offset = MTDPART_OFS_APPEND,

		.size = SZ_512K,

		.mask_flags = MTD_WRITEABLE,

	},

	[2] = {

		.name = "U-Boot-Env",

		.offset = MTDPART_OFS_APPEND,

		.size = SZ_64K,

		.mask_flags = MTD_WRITEABLE,

	},

	[3] = {

		.name = "Kernel",

		.offset = MTDPART_OFS_APPEND,

		.size = SZ_2M + SZ_512K,

		.mask_flags = 0,

	},

	[4] = {

		.name = "Filesystem",

		.offset = MTDPART_OFS_APPEND,

		.size = SZ_4M,

		.mask_flags = 0,

	},

	[5] = {

		.name = "MAC-Address",

		.offset = SZ_8M - SZ_64K,

		.size = SZ_64K,

		.mask_flags = MTD_WRITEABLE,

	},

};



static struct flash_platform_data da850evm_spiflash_data = {

	.name		= "m25p80",

	.parts		= da850evm_spiflash_part,

	.nr_parts	= ARRAY_SIZE(da850evm_spiflash_part),

	.type		= "m25p64",

};



static struct davinci_spi_config da850evm_spiflash_cfg = {

	.io_type	= SPI_IO_TYPE_DMA,

	.c2tdelay	= 8,

	.t2cdelay	= 8,

};



static struct spi_board_info da850evm_spi_info[] = {

	{

		.modalias		= "m25p80",

		.platform_data		= &da850evm_spiflash_data,

		.controller_data	= &da850evm_spiflash_cfg,

		.mode			= SPI_MODE_0,

		.max_speed_hz		= 30000000,

		.bus_num		= 1,

		.chip_select		= 0,

	},

};



static struct mtd_partition da850_evm_norflash_partition[] = {

	{

		.name           = "bootloaders + env",
@@ -1167,6 +1234,12 @@ static __init void da850_evm_init(void) 
	if (ret)

		pr_warning("da850_evm_init: suspend registration failed: %d\n",

				ret);



	ret = da8xx_register_spi(1, da850evm_spi_info,

				 ARRAY_SIZE(da850evm_spi_info));

	if (ret)

		pr_warning("da850_evm_init: spi 1 registration failed: %d\n",

				ret);

}



#ifdef CONFIG_SERIAL_8250_CONSOLE

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