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/kernel.h>
  27 #include <linux/module.h>
  28 #include <linux/init.h>
  29 #include <linux/dma-mapping.h>
  30 #include <linux/platform_device.h>
  31 #include <linux/gpio.h>
  32
  33 #include <linux/i2c.h>
  34 #include <linux/i2c/at24.h>
  35 #include <linux/etherdevice.h>
  36 #include <linux/mtd/mtd.h>
  37 #include <linux/mtd/nand.h>
  38 #include <linux/mtd/partitions.h>
  39 #include <linux/mtd/physmap.h>
  40 #include <linux/io.h>
  41
  42 #include <asm/setup.h>
  43 #include <asm/mach-types.h>
  44
  45 #include <asm/mach/arch.h>
  46 #include <asm/mach/map.h>
  47 #include <asm/mach/flash.h>
  48
  49 #include <mach/dm644x.h>
  50 #include <mach/common.h>
  51 #include <mach/i2c.h>
  52 #include <mach/serial.h>
  53 #include <mach/psc.h>
  54 #include <mach/mux.h>
  55 #include <mach/common.h>
  56
  57 #define SFFSDR_PHY_MASK         (0x2)
  58 #define SFFSDR_MDIO_FREQUENCY   (2200000) /* PHY bus frequency */
  59
  60 #define DAVINCI_ASYNC_EMIF_CONTROL_BASE   0x01e00000
  61 #define DAVINCI_ASYNC_EMIF_DATA_CE0_BASE  0x02000000
  62
  63 struct mtd_partition davinci_sffsdr_nandflash_partition[] = {
  64         /* U-Boot Environment: Block 0
  65          * UBL:                Block 1
  66          * U-Boot:             Blocks 6-7 (256 kb)
  67          * Integrity Kernel:   Blocks 8-31 (3 Mb)
  68          * Integrity Data:     Blocks 100-END
  69          */
  70         {
  71                 .name           = "Linux Kernel",
  72                 .offset         = 32 * SZ_128K,
  73                 .size           = 16 * SZ_128K, /* 2 Mb */
  74                 .mask_flags     = MTD_WRITEABLE, /* Force read-only */
  75         },
  76         {
  77                 .name           = "Linux ROOT",
  78                 .offset         = MTDPART_OFS_APPEND,
  79                 .size           = 256 * SZ_128K, /* 32 Mb */
  80                 .mask_flags     = 0, /* R/W */
  81         },
  82 };
  83
  84 static struct flash_platform_data davinci_sffsdr_nandflash_data = {
  85         .parts          = davinci_sffsdr_nandflash_partition,
  86         .nr_parts       = ARRAY_SIZE(davinci_sffsdr_nandflash_partition),
  87 };
  88
  89 static struct resource davinci_sffsdr_nandflash_resource[] = {
  90         {
  91                 .start          = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE,
  92                 .end            = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
  93                 .flags          = IORESOURCE_MEM,
  94         }, {
  95                 .start          = DAVINCI_ASYNC_EMIF_CONTROL_BASE,
  96                 .end            = DAVINCI_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
  97                 .flags          = IORESOURCE_MEM,
  98         },
  99 };
 100
 101 static struct platform_device davinci_sffsdr_nandflash_device = {
 102         .name           = "davinci_nand", /* Name of driver */
 103         .id             = 0,
 104         .dev            = {
 105                 .platform_data  = &davinci_sffsdr_nandflash_data,
 106         },
 107         .num_resources  = ARRAY_SIZE(davinci_sffsdr_nandflash_resource),
 108         .resource       = davinci_sffsdr_nandflash_resource,
 109 };
 110
 111 static struct emac_platform_data sffsdr_emac_pdata = {
 112         .phy_mask       = SFFSDR_PHY_MASK,
 113         .mdio_max_freq  = SFFSDR_MDIO_FREQUENCY,
 114 };
 115
 116 static struct at24_platform_data eeprom_info = {
 117         .byte_len       = (64*1024) / 8,
 118         .page_size      = 32,
 119         .flags          = AT24_FLAG_ADDR16,
 120 };
 121
 122 static struct i2c_board_info __initdata i2c_info[] =  {
 123         {
 124                 I2C_BOARD_INFO("24lc64", 0x50),
 125                 .platform_data  = &eeprom_info,
 126         },
 127         /* Other I2C devices:
 128          * MSP430,  addr 0x23 (not used)
 129          * PCA9543, addr 0x70 (setup done by U-Boot)
 130          * ADS7828, addr 0x48 (ADC for voltage monitoring.)
 131          */
 132 };
 133
 134 static struct davinci_i2c_platform_data i2c_pdata = {
 135         .bus_freq       = 20 /* kHz */,
 136         .bus_delay      = 100 /* usec */,
 137 };
 138
 139 static void __init sffsdr_init_i2c(void)
 140 {
 141         davinci_init_i2c(&i2c_pdata);
 142         i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
 143 }
 144
 145 static struct platform_device *davinci_sffsdr_devices[] __initdata = {
 146         &davinci_sffsdr_nandflash_device,
 147 };
 148
 149 static struct davinci_uart_config uart_config __initdata = {
 150         .enabled_uarts = (1 << 0),
 151 };
 152
 153 static void __init davinci_sffsdr_map_io(void)
 154 {
 155         dm644x_init();
 156 }
 157
 158 static __init void davinci_sffsdr_init(void)
 159 {
 160         struct davinci_soc_info *soc_info = &davinci_soc_info;
 161
 162         platform_add_devices(davinci_sffsdr_devices,
 163                              ARRAY_SIZE(davinci_sffsdr_devices));
 164         sffsdr_init_i2c();
 165         davinci_serial_init(&uart_config);
 166         soc_info->emac_pdata->phy_mask = SFFSDR_PHY_MASK;
 167         soc_info->emac_pdata->mdio_max_freq = SFFSDR_MDIO_FREQUENCY;
 168         setup_usb(0, 0); /* We support only peripheral mode. */
 169
 170         /* mux VLYNQ pins */
 171         davinci_cfg_reg(DM644X_VLYNQEN);
 172         davinci_cfg_reg(DM644X_VLYNQWD);
 173 }
 174
 175 static __init void davinci_sffsdr_irq_init(void)
 176 {
 177         davinci_irq_init();
 178 }
 179
 180 MACHINE_START(SFFSDR, "Lyrtech SFFSDR")
 181         /* Maintainer: Hugo Villeneuve hugo.villeneuve@lyrtech.com */
 182         .phys_io      = IO_PHYS,
 183         .io_pg_offst  = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
 184         .boot_params  = (DAVINCI_DDR_BASE + 0x100),
 185         .map_io       = davinci_sffsdr_map_io,
 186         .init_irq     = davinci_sffsdr_irq_init,
 187         .timer        = &davinci_timer,
 188         .init_machine = davinci_sffsdr_init,
 189 MACHINE_END