/*
* Lyrtech SFFSDR board support.
*
* Copyright (C) 2008 Philip Balister, OpenSDR <philip@opensdr.com>
* Copyright (C) 2008 Lyrtech <www.lyrtech.com>
*
* Based on DV-EVM platform, original copyright follows:
*
* Copyright (C) 2007 MontaVista Software, Inc.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>
#include <linux/etherdevice.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/io.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/flash.h>
#include <mach/dm644x.h>
#include <mach/common.h>
#include <mach/emac.h>
#include <mach/i2c.h>
#include <mach/serial.h>
#include <mach/psc.h>
#include <mach/mux.h>
#define SFFSDR_PHY_MASK (0x2)
#define SFFSDR_MDIO_FREQUENCY (2200000) /* PHY bus frequency */
#define DAVINCI_ASYNC_EMIF_CONTROL_BASE 0x01e00000
#define DAVINCI_ASYNC_EMIF_DATA_CE0_BASE 0x02000000
struct mtd_partition davinci_sffsdr_nandflash_partition[] = {
/* U-Boot Environment: Block 0
* UBL: Block 1
* U-Boot: Blocks 6-7 (256 kb)
* Integrity Kernel: Blocks 8-31 (3 Mb)
* Integrity Data: Blocks 100-END
*/
{
.name = "Linux Kernel",
.offset = 32 * SZ_128K,
.size = 16 * SZ_128K, /* 2 Mb */
.mask_flags = MTD_WRITEABLE, /* Force read-only */
},
{
.name = "Linux ROOT",
.offset = MTDPART_OFS_APPEND,
.size = 256 * SZ_128K, /* 32 Mb */
.mask_flags = 0, /* R/W */
},
};
static struct flash_platform_data davinci_sffsdr_nandflash_data = {
.parts = davinci_sffsdr_nandflash_partition,
.nr_parts = ARRAY_SIZE(davinci_sffsdr_nandflash_partition),
};
static struct resource davinci_sffsdr_nandflash_resource[] = {
{
.start = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE,
.end = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
.flags = IORESOURCE_MEM,
}, {
.start = DAVINCI_ASYNC_EMIF_CONTROL_BASE,
.end = DAVINCI_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device davinci_sffsdr_nandflash_device = {
.name = "davinci_nand", /* Name of driver */
.id = 0,
.dev = {
.platform_data = &davinci_sffsdr_nandflash_data,
},
.num_resources = ARRAY_SIZE(davinci_sffsdr_nandflash_resource),
.resource = davinci_sffsdr_nandflash_resource,
};
static struct emac_platform_data sffsdr_emac_pdata = {
.phy_mask = SFFSDR_PHY_MASK,
.mdio_max_freq = SFFSDR_MDIO_FREQUENCY,
};
static struct at24_platform_data eeprom_info = {
.byte_len = (64*1024) / 8,
.page_size = 32,
.flags = AT24_FLAG_ADDR16,
};
static struct i2c_board_info __initdata i2c_info[] = {
{
I2C_BOARD_INFO("24lc64", 0x50),
.platform_data = &eeprom_info,
},
/* Other I2C devices:
* MSP430, addr 0x23 (not used)
* PCA9543, addr 0x70 (setup done by U-Boot)
* ADS7828, addr 0x48 (ADC for voltage monitoring.)
*/
};
static struct davinci_i2c_platform_data i2c_pdata = {
.bus_freq = 20 /* kHz */,
.bus_delay = 100 /* usec */,
};
static void __init sffsdr_init_i2c(void)
{
davinci_init_i2c(&i2c_pdata);
i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
}
static struct platform_device *davinci_sffsdr_devices[] __initdata = {
&davinci_sffsdr_nandflash_device,
};
static struct davinci_uart_config uart_config __initdata = {
.enabled_uarts = (1 << 0),
};
static void __init davinci_sffsdr_map_io(void)
{
davinci_map_common_io();
dm644x_init();
}
static __init void davinci_sffsdr_init(void)
{
platform_add_devices(davinci_sffsdr_devices,
ARRAY_SIZE(davinci_sffsdr_devices));
sffsdr_init_i2c();
davinci_serial_init(&uart_config);
dm644x_init_emac(&sffsdr_emac_pdata);
setup_usb(0, 0); /* We support only peripheral mode. */
/* mux VLYNQ pins */
davinci_cfg_reg(DM644X_VLYNQEN);
davinci_cfg_reg(DM644X_VLYNQWD);
}
static __init void davinci_sffsdr_irq_init(void)
{
davinci_irq_init();
}
MACHINE_START(SFFSDR, "Lyrtech SFFSDR")
/* Maintainer: Hugo Villeneuve hugo.villeneuve@lyrtech.com */
.phys_io = IO_PHYS,
.io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
.boot_params = (DAVINCI_DDR_BASE + 0x100),
.map_io = davinci_sffsdr_map_io,
.init_irq = davinci_sffsdr_irq_init,
.timer = &davinci_timer,
.init_machine = davinci_sffsdr_init,
MACHINE_END
