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/i2c/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/dm644x.h> 39#include <mach/common.h> 40#include <mach/i2c.h> 41#include <mach/serial.h> 42#include <mach/mux.h> 43#include <mach/usb.h> 44 45#define SFFSDR_PHY_MASK (0x2) 46#define SFFSDR_MDIO_FREQUENCY (2200000) /* PHY bus frequency */ 47 48static struct mtd_partition davinci_sffsdr_nandflash_partition[] = { 49 /* U-Boot Environment: Block 0 50 * UBL: Block 1 51 * U-Boot: Blocks 6-7 (256 kb) 52 * Integrity Kernel: Blocks 8-31 (3 Mb) 53 * Integrity Data: Blocks 100-END 54 */ 55 { 56 .name = "Linux Kernel", 57 .offset = 32 * SZ_128K, 58 .size = 16 * SZ_128K, /* 2 Mb */ 59 .mask_flags = MTD_WRITEABLE, /* Force read-only */ 60 }, 61 { 62 .name = "Linux ROOT", 63 .offset = MTDPART_OFS_APPEND, 64 .size = 256 * SZ_128K, /* 32 Mb */ 65 .mask_flags = 0, /* R/W */ 66 }, 67}; 68 69static struct flash_platform_data davinci_sffsdr_nandflash_data = { 70 .parts = davinci_sffsdr_nandflash_partition, 71 .nr_parts = ARRAY_SIZE(davinci_sffsdr_nandflash_partition), 72}; 73 74static struct resource davinci_sffsdr_nandflash_resource[] = { 75 { 76 .start = DM644X_ASYNC_EMIF_DATA_CE0_BASE, 77 .end = DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1, 78 .flags = IORESOURCE_MEM, 79 }, { 80 .start = DM644X_ASYNC_EMIF_CONTROL_BASE, 81 .end = DM644X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1, 82 .flags = IORESOURCE_MEM, 83 }, 84}; 85 86static struct platform_device davinci_sffsdr_nandflash_device = { 87 .name = "davinci_nand", /* Name of driver */ 88 .id = 0, 89 .dev = { 90 .platform_data = &davinci_sffsdr_nandflash_data, 91 }, 92 .num_resources = ARRAY_SIZE(davinci_sffsdr_nandflash_resource), 93 .resource = davinci_sffsdr_nandflash_resource, 94}; 95 96static struct at24_platform_data eeprom_info = { 97 .byte_len = (64*1024) / 8, 98 .page_size = 32, 99 .flags = AT24_FLAG_ADDR16, 100}; 101 102static struct i2c_board_info __initdata i2c_info[] = { 103 { 104 I2C_BOARD_INFO("24lc64", 0x50), 105 .platform_data = &eeprom_info, 106 }, 107 /* Other I2C devices: 108 * MSP430, addr 0x23 (not used) 109 * PCA9543, addr 0x70 (setup done by U-Boot) 110 * ADS7828, addr 0x48 (ADC for voltage monitoring.) 111 */ 112}; 113 114static struct davinci_i2c_platform_data i2c_pdata = { 115 .bus_freq = 20 /* kHz */, 116 .bus_delay = 100 /* usec */, 117}; 118 119static void __init sffsdr_init_i2c(void) 120{ 121 davinci_init_i2c(&i2c_pdata); 122 i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info)); 123} 124 125static struct platform_device *davinci_sffsdr_devices[] __initdata = { 126 &davinci_sffsdr_nandflash_device, 127}; 128 129static struct davinci_uart_config uart_config __initdata = { 130 .enabled_uarts = (1 << 0), 131}; 132 133static void __init davinci_sffsdr_map_io(void) 134{ 135 dm644x_init(); 136} 137 138static __init void davinci_sffsdr_init(void) 139{ 140 struct davinci_soc_info *soc_info = &davinci_soc_info; 141 142 platform_add_devices(davinci_sffsdr_devices, 143 ARRAY_SIZE(davinci_sffsdr_devices)); 144 sffsdr_init_i2c(); 145 davinci_serial_init(&uart_config); 146 soc_info->emac_pdata->phy_mask = SFFSDR_PHY_MASK; 147 soc_info->emac_pdata->mdio_max_freq = SFFSDR_MDIO_FREQUENCY; 148 davinci_setup_usb(0, 0); /* We support only peripheral mode. */ 149 150 /* mux VLYNQ pins */ 151 davinci_cfg_reg(DM644X_VLYNQEN); 152 davinci_cfg_reg(DM644X_VLYNQWD); 153} 154 155MACHINE_START(SFFSDR, "Lyrtech SFFSDR") 156 /* Maintainer: Hugo Villeneuve hugo.villeneuve@lyrtech.com */ 157 .phys_io = IO_PHYS, 158 .io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc, 159 .boot_params = (DAVINCI_DDR_BASE + 0x100), 160 .map_io = davinci_sffsdr_map_io, 161 .init_irq = davinci_irq_init, 162 .timer = &davinci_timer, 163 .init_machine = davinci_sffsdr_init, 164MACHINE_END 165