LXR linux/arch/arm/mach-davinci/board-sffsdr.c

   1/*
   2 * Lyrtech SFFSDR board support.
   3 *
   4 * Copyright (C) 2008 Philip Balister, OpenSDR <philip@opensdr.com>
   5 * Copyright (C) 2008 Lyrtech <www.lyrtech.com>
   6 *
   7 * Based on DV-EVM platform, original copyright follows:
   8 *
   9 * Copyright (C) 2007 MontaVista Software, Inc.
  10 *
  11 * This program is free software; you can redistribute it and/or modify
  12 * it under the terms of the GNU General Public License as published by
  13 * the Free Software Foundation; either version 2 of the License, or
  14 * (at your option) any later version.
  15 *
  16 * This program is distributed in the hope that it will be useful,
  17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 * GNU General Public License for more details.
  20 *
  21 * You should have received a copy of the GNU General Public License
  22 * along with this program; if not, write to the Free Software
  23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24 */
  25
  26#include <linux/init.h>
  27#include <linux/platform_device.h>
  28#include <linux/i2c.h>
  29#include <linux/platform_data/at24.h>
  30#include <linux/mtd/mtd.h>
  31#include <linux/mtd/nand.h>
  32#include <linux/mtd/partitions.h>
  33
  34#include <asm/mach-types.h>
  35#include <asm/mach/arch.h>
  36#include <asm/mach/flash.h>
  37
  38#include <mach/common.h>
  39#include <linux/platform_data/i2c-davinci.h>
  40#include <mach/serial.h>
  41#include <mach/mux.h>
  42#include <linux/platform_data/usb-davinci.h>
  43
  44#include "davinci.h"
  45
  46#define SFFSDR_PHY_ID           "davinci_mdio-0:01"
  47static struct mtd_partition davinci_sffsdr_nandflash_partition[] = {
  48        /* U-Boot Environment: Block 0
  49         * UBL:                Block 1
  50         * U-Boot:             Blocks 6-7 (256 kb)
  51         * Integrity Kernel:   Blocks 8-31 (3 Mb)
  52         * Integrity Data:     Blocks 100-END
  53         */
  54        {
  55                .name           = "Linux Kernel",
  56                .offset         = 32 * SZ_128K,
  57                .size           = 16 * SZ_128K, /* 2 Mb */
  58                .mask_flags     = MTD_WRITEABLE, /* Force read-only */
  59        },
  60        {
  61                .name           = "Linux ROOT",
  62                .offset         = MTDPART_OFS_APPEND,
  63                .size           = 256 * SZ_128K, /* 32 Mb */
  64                .mask_flags     = 0, /* R/W */
  65        },
  66};
  67
  68static struct flash_platform_data davinci_sffsdr_nandflash_data = {
  69        .parts          = davinci_sffsdr_nandflash_partition,
  70        .nr_parts       = ARRAY_SIZE(davinci_sffsdr_nandflash_partition),
  71};
  72
  73static struct resource davinci_sffsdr_nandflash_resource[] = {
  74        {
  75                .start          = DM644X_ASYNC_EMIF_DATA_CE0_BASE,
  76                .end            = DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
  77                .flags          = IORESOURCE_MEM,
  78        }, {
  79                .start          = DM644X_ASYNC_EMIF_CONTROL_BASE,
  80                .end            = DM644X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
  81                .flags          = IORESOURCE_MEM,
  82        },
  83};
  84
  85static struct platform_device davinci_sffsdr_nandflash_device = {
  86        .name           = "davinci_nand", /* Name of driver */
  87        .id             = 0,
  88        .dev            = {
  89                .platform_data  = &davinci_sffsdr_nandflash_data,
  90        },
  91        .num_resources  = ARRAY_SIZE(davinci_sffsdr_nandflash_resource),
  92        .resource       = davinci_sffsdr_nandflash_resource,
  93};
  94
  95static struct at24_platform_data eeprom_info = {
  96        .byte_len       = (64*1024) / 8,
  97        .page_size      = 32,
  98        .flags          = AT24_FLAG_ADDR16,
  99};
 100
 101static struct i2c_board_info __initdata i2c_info[] =  {
 102        {
 103                I2C_BOARD_INFO("24lc64", 0x50),
 104                .platform_data  = &eeprom_info,
 105        },
 106        /* Other I2C devices:
 107         * MSP430,  addr 0x23 (not used)
 108         * PCA9543, addr 0x70 (setup done by U-Boot)
 109         * ADS7828, addr 0x48 (ADC for voltage monitoring.)
 110         */
 111};
 112
 113static struct davinci_i2c_platform_data i2c_pdata = {
 114        .bus_freq       = 20 /* kHz */,
 115        .bus_delay      = 100 /* usec */,
 116};
 117
 118static void __init sffsdr_init_i2c(void)
 119{
 120        davinci_init_i2c(&i2c_pdata);
 121        i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
 122}
 123
 124static struct platform_device *davinci_sffsdr_devices[] __initdata = {
 125        &davinci_sffsdr_nandflash_device,
 126};
 127
 128static struct davinci_uart_config uart_config __initdata = {
 129        .enabled_uarts = (1 << 0),
 130};
 131
 132static void __init davinci_sffsdr_map_io(void)
 133{
 134        dm644x_init();
 135}
 136
 137static __init void davinci_sffsdr_init(void)
 138{
 139        struct davinci_soc_info *soc_info = &davinci_soc_info;
 140
 141        platform_add_devices(davinci_sffsdr_devices,
 142                             ARRAY_SIZE(davinci_sffsdr_devices));
 143        sffsdr_init_i2c();
 144        davinci_serial_init(&uart_config);
 145        soc_info->emac_pdata->phy_id = SFFSDR_PHY_ID;
 146        davinci_setup_usb(0, 0); /* We support only peripheral mode. */
 147
 148        /* mux VLYNQ pins */
 149        davinci_cfg_reg(DM644X_VLYNQEN);
 150        davinci_cfg_reg(DM644X_VLYNQWD);
 151}
 152
 153MACHINE_START(SFFSDR, "Lyrtech SFFSDR")
 154        /* Maintainer: Hugo Villeneuve hugo.villeneuve@lyrtech.com */
 155        .atag_offset  = 0x100,
 156        .map_io       = davinci_sffsdr_map_io,
 157        .init_irq     = davinci_irq_init,
 158        .init_time      = davinci_timer_init,
 159        .init_machine = davinci_sffsdr_init,
 160        .init_late      = davinci_init_late,
 161        .dma_zone_size  = SZ_128M,
 162        .restart        = davinci_restart,
 163MACHINE_END
 164