arch/arm/mach-at91/board-pcontrol-g20.c

   1 /*
   2  *  Copyright (C) 2010 Christian Glindkamp <christian.glindkamp@taskit.de>
   3  *                     taskit GmbH
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  */
  19 /*
  20  * copied and adjusted from board-stamp9g20.c
  21  * by Peter Gsellmann <pgsellmann@portner-elektronik.at>
  22  */
  23
  24 #include <linux/mm.h>
  25 #include <linux/platform_device.h>
  26 #include <linux/gpio.h>
  27 #include <linux/w1-gpio.h>
  28
  29 #include <asm/mach-types.h>
  30 #include <asm/mach/arch.h>
  31
  32 #include <mach/at91sam9_smc.h>
  33 #include <mach/hardware.h>
  34
  35 #include "at91_aic.h"
  36 #include "board.h"
  37 #include "sam9_smc.h"
  38 #include "generic.h"
  39 #include "stamp9g20.h"
  40 #include "gpio.h"
  41
  42
  43 static void __init pcontrol_g20_init_early(void)
  44 {
  45         stamp9g20_init_early();
  46 }
  47
  48 static struct sam9_smc_config __initdata pcontrol_smc_config[2] = { {
  49         .ncs_read_setup         = 16,
  50         .nrd_setup              = 18,
  51         .ncs_write_setup        = 16,
  52         .nwe_setup              = 18,
  53
  54         .ncs_read_pulse         = 63,
  55         .nrd_pulse              = 55,
  56         .ncs_write_pulse        = 63,
  57         .nwe_pulse              = 55,
  58
  59         .read_cycle             = 127,
  60         .write_cycle            = 127,
  61
  62         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
  63                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
  64                         | AT91_SMC_DBW_8 | AT91_SMC_PS_4
  65                         | AT91_SMC_TDFMODE,
  66         .tdf_cycles             = 3,
  67 }, {
  68         .ncs_read_setup         = 0,
  69         .nrd_setup              = 0,
  70         .ncs_write_setup        = 0,
  71         .nwe_setup              = 1,
  72
  73         .ncs_read_pulse         = 8,
  74         .nrd_pulse              = 8,
  75         .ncs_write_pulse        = 5,
  76         .nwe_pulse              = 4,
  77
  78         .read_cycle             = 8,
  79         .write_cycle            = 7,
  80
  81         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
  82                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
  83                         | AT91_SMC_DBW_16 | AT91_SMC_PS_8
  84                         | AT91_SMC_TDFMODE,
  85         .tdf_cycles             = 1,
  86 } };
  87
  88 static void __init add_device_pcontrol(void)
  89 {
  90         /* configure chip-select 4 (IO compatible to 8051  X4 ) */
  91         sam9_smc_configure(0, 4, &pcontrol_smc_config[0]);
  92         /* configure chip-select 7 (FerroRAM 256KiBx16bit MR2A16A  D4 ) */
  93         sam9_smc_configure(0, 7, &pcontrol_smc_config[1]);
  94 }
  95
  96
  97 /*
  98  * USB Host port
  99  */
 100 static struct at91_usbh_data __initdata usbh_data = {
 101         .ports          = 2,
 102         .vbus_pin       = {-EINVAL, -EINVAL},
 103         .overcurrent_pin= {-EINVAL, -EINVAL},
 104 };
 105
 106
 107 /*
 108  * USB Device port
 109  */
 110 static struct at91_udc_data __initdata pcontrol_g20_udc_data = {
 111         .vbus_pin       = AT91_PIN_PA22,        /* Detect +5V bus voltage */
 112         .pullup_pin     = AT91_PIN_PA4,         /* K-state, active low */
 113 };
 114
 115
 116 /*
 117  * MACB Ethernet device
 118  */
 119 static struct macb_platform_data __initdata macb_data = {
 120         .phy_irq_pin    = AT91_PIN_PA28,
 121         .is_rmii        = 1,
 122 };
 123
 124
 125 /*
 126  * I2C devices: eeprom and phy/switch
 127  */
 128 static struct i2c_board_info __initdata pcontrol_g20_i2c_devices[] = {
 129 {               /* D7  address width=2, 8KiB */
 130         I2C_BOARD_INFO("24c64", 0x50)
 131 }, {            /* D8  address width=1, 1 byte has 32 bits! */
 132         I2C_BOARD_INFO("lan9303", 0x0a)
 133 }, };
 134
 135
 136 /*
 137  * LEDs
 138  */
 139 static struct gpio_led pcontrol_g20_leds[] = {
 140         {
 141                 .name                   = "LED1",       /* red  H5 */
 142                 .gpio                   = AT91_PIN_PB18,
 143                 .active_low             = 1,
 144                 .default_trigger        = "none",       /* supervisor */
 145         }, {
 146                 .name                   = "LED2",       /* yellow  H7 */
 147                 .gpio                   = AT91_PIN_PB19,
 148                 .active_low             = 1,
 149                 .default_trigger        = "mmc0",       /* SD-card activity */
 150         }, {
 151                 .name                   = "LED3",       /* green  H2 */
 152                 .gpio                   = AT91_PIN_PB20,
 153                 .active_low             = 1,
 154                 .default_trigger        = "heartbeat",  /* blinky */
 155         }, {
 156                 .name                   = "LED4",       /* red  H3 */
 157                 .gpio                   = AT91_PIN_PC6,
 158                 .active_low             = 1,
 159                 .default_trigger        = "none",       /* connection lost */
 160         }, {
 161                 .name                   = "LED5",       /* yellow  H6 */
 162                 .gpio                   = AT91_PIN_PC7,
 163                 .active_low             = 1,
 164                 .default_trigger        = "none",       /* unsent data */
 165         }, {
 166                 .name                   = "LED6",       /* green  H1 */
 167                 .gpio                   = AT91_PIN_PC9,
 168                 .active_low             = 1,
 169                 .default_trigger        = "none",       /* snafu */
 170         }
 171 };
 172
 173
 174 /*
 175  * SPI devices
 176  */
 177 static struct spi_board_info pcontrol_g20_spi_devices[] = {
 178         {
 179                 .modalias       = "spidev",     /* HMI port  X4 */
 180                 .chip_select    = 1,
 181                 .max_speed_hz   = 50 * 1000 * 1000,
 182                 .bus_num        = 0,
 183         }, {
 184                 .modalias       = "spidev",     /* piggyback  A2 */
 185                 .chip_select    = 0,
 186                 .max_speed_hz   = 50 * 1000 * 1000,
 187                 .bus_num        = 1,
 188         },
 189 };
 190
 191
 192 static void __init pcontrol_g20_board_init(void)
 193 {
 194         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) piggyback  A2 */
 195         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS
 196                                                 | ATMEL_UART_RTS);
 197
 198         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) isolated RS485  X5 */
 199         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS
 200                                                 | ATMEL_UART_RTS);
 201
 202         /* USART2 on ttyS3. (Rx, Tx)  9bit-Bus  Multidrop-mode  X4 */
 203         at91_register_uart(AT91SAM9260_ID_US4, 3, 0);
 204         stamp9g20_board_init();
 205         at91_add_device_usbh(&usbh_data);
 206         at91_add_device_eth(&macb_data);
 207         at91_add_device_i2c(pcontrol_g20_i2c_devices,
 208                 ARRAY_SIZE(pcontrol_g20_i2c_devices));
 209         add_device_pcontrol();
 210         at91_add_device_spi(pcontrol_g20_spi_devices,
 211                 ARRAY_SIZE(pcontrol_g20_spi_devices));
 212         at91_add_device_udc(&pcontrol_g20_udc_data);
 213         at91_gpio_leds(pcontrol_g20_leds,
 214                 ARRAY_SIZE(pcontrol_g20_leds));
 215         /* piggyback  A2 */
 216         at91_set_gpio_output(AT91_PIN_PB31, 1);
 217 }
 218
 219
 220 MACHINE_START(PCONTROL_G20, "PControl G20")
 221         /* Maintainer: pgsellmann@portner-elektronik.at */
 222         .init_time      = at91sam926x_pit_init,
 223         .map_io         = at91_map_io,
 224         .handle_irq     = at91_aic_handle_irq,
 225         .init_early     = pcontrol_g20_init_early,
 226         .init_irq       = at91_init_irq_default,
 227         .init_machine   = pcontrol_g20_board_init,
 228 MACHINE_END