here is the code I use
just take the bits you need, I commented some parts to optimize my own board.
check for this: my_flash1_partitions[]
grtzzzzzz
Code:
/*
* linux/arch/arm/mach-at91/board-sam9260ek.c
*
* Copyright (C) 2005 SAN People
* Copyright (C) 2006 Atmel
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <linux/mtd/mtd.h>
#include <asm/hardware.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/arch/board.h>
#include <asm/arch/gpio.h>
#include <asm/arch/at91sam926x_mc.h>
#include "generic.h"
/*
* Serial port configuration.
* 0 .. 5 = USART0 .. USART5
* 6 = DBGU
*/
static struct at91_uart_config __initdata ek_uart_config = {
.console_tty = 0, /* ttyS0 */
.nr_tty = 5,
.tty_map = { 6, 0, 1, 2, 3, -1, -1 } /* ttyS0, ..., ttyS6 */
};
static void __init ek_map_io(void)
{
/* Initialize processor: 18.432 MHz crystal */
at91sam9260_initialize(18432000);
/* Setup the serial ports and console */
at91_init_serial(&ek_uart_config);
}
static void __init ek_init_irq(void)
{
at91sam9260_init_interrupts(NULL);
}
/*
* USB Host port
*/
static struct at91_usbh_data __initdata ek_usbh_data = {
.ports = 2,
};
/*
* USB Device port
*/
static struct at91_udc_data __initdata ek_udc_data = {
.vbus_pin = AT91_PIN_PC5,
.pullup_pin = 0, /* pull-up driven by UDC */
};
/* These are the partitions I want for the dataflash chip on CS1 */
/* SO how do I link this into the SPI dev??? [b]*/
static struct mtd_partition my_flash1_partitions[] =
{
/* Note there are 8 pages per block, so put all sections on a block boundary */
{
.name = "bootstrap",
.offset = 0,
.size = 16 * 1056,/* 16 pages (2blocks) * 1056 bytes = 0x4200 bytes*/
.mask_flags = MTD_WRITEABLE, /* read-only */
},
{
.name = "uboot_env", /* 0x4200 - defines place u-boot env*/
.offset = MTDPART_OFS_NXTBLK,
.size = 16 * 1056, /* 16 pages (2blocks) * 1056 bytes = 0x4200 bytes */
.mask_flags = MTD_WRITEABLE, /* read-only */
},
{
.name = "loader", /* 0x8400 - defines palce bootstrap loads u-boot from*/
.offset = MTDPART_OFS_NXTBLK,
.size = 224 * 1056, /* 224 pages (28blocks) * 1056 bytes = 0x39C00 bytes */
.mask_flags = MTD_WRITEABLE, /* read-only */
},
{
.name = "linux", /* 0x42000 - defines place u-boot copies kernel from*/
.offset = MTDPART_OFS_NXTBLK,
.size = 1536 * 1056, /* 1536 pages (192 blocks) * 1056 bytes = 0x18C000 bytes */
},
{
.name = "rootfs", /* 0x1CE000 - where we put jffs2 root filesystem */
.offset = MTDPART_OFS_NXTBLK,
// .size = MTDPART_SIZ_FULL, /* rest = ?? sectors */
.size = 3072 * 1056, /* 3072 pages (384 blocks) * 1056 bytes = 0x318000 bytes */
},
{
.name = "data", /* 0x4E6000 - where we put jffs2 data filesystem */
.offset = MTDPART_OFS_NXTBLK,
.size = MTDPART_SIZ_FULL, /* rest = ?? sectors */
}
};
static struct flash_platform_data my_flash1_platform = {
.name = "Onboard dataflash chip",
.parts = my_flash1_partitions,
.nr_parts = ARRAY_SIZE(my_flash1_partitions)
};
/*
* SPI devices.
*/
static struct spi_board_info ek_spi_devices[] = {
#if !defined(CONFIG_MMC_AT91)
{ /* DataFlash chip */
.modalias = "mtd_dataflash",
.chip_select = 1,
.max_speed_hz = 15 * 1000 * 1000,
.bus_num = 0,
.platform_data = &my_flash1_platform,
},
#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
{ /* DataFlash card */
.modalias = "mtd_dataflash",
.chip_select = 0,
.max_speed_hz = 15 * 1000 * 1000,
.bus_num = 0,
},
#endif
#endif
#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
{ /* AT73C213 DAC */
.modalias = "at73c213",
.chip_select = 0,
.max_speed_hz = 10 * 1000 * 1000,
.bus_num = 1,
},
#endif
};
/*
* MACB Ethernet device
*/
static struct at91_eth_data __initdata ek_macb_data = {
.phy_irq_pin = AT91_PIN_PA7,
.is_rmii = 1,
};
/*
* NAND flash
*/
static struct mtd_partition __initdata ek_nand_partition[] = {
{
.name = "Partition 1",
.offset = 0,
.size = 256 * 1024,
},
{
.name = "Partition 2",
.offset = 256 * 1024,
.size = MTDPART_SIZ_FULL,
},
};
static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
{
*num_partitions = ARRAY_SIZE(ek_nand_partition);
return ek_nand_partition;
}
static struct at91_nand_data __initdata ek_nand_data = {
.ale = 21,
.cle = 22,
// .det_pin = ... not connected
.rdy_pin = AT91_PIN_PC13,
.enable_pin = AT91_PIN_PC14,
.partition_info = nand_partitions,
#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
.bus_width_16 = 1,
#else
.bus_width_16 = 0,
#endif
};
/*
* MCI (SD/MMC)
*/
static struct at91_mmc_data __initdata ek_mmc_data = {
.slot_b = 1,
.wire4 = 1,
// .det_pin = ... not connected
// .wp_pin = ... not connected
// .vcc_pin = ... not connected
};
static void __init ek_board_init(void)
{
/* Serial */
at91_add_device_serial();
/* USB Host */
at91_add_device_usbh(&ek_usbh_data);
/* USB Device */
at91_add_device_udc(&ek_udc_data);
/* SPI */
at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
/* NAND */
at91_add_device_nand(&ek_nand_data);
/* Ethernet */
at91_add_device_eth(&ek_macb_data);
/* MMC */
// at91_add_device_mmc(0, &ek_mmc_data);
/* I2C */
at91_add_device_i2c(NULL, 0);
}
MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK")
/* Maintainer: Atmel */
.phys_io = AT91_BASE_SYS,
.io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
.boot_params = AT91_SDRAM_BASE + 0x100,
.timer = &at91sam926x_timer,
.map_io = ek_map_io,
.init_irq = ek_init_irq,
.init_machine = ek_board_init,
MACHINE_END