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