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
  34 #include "at91_aic.h"
  35 #include "board.h"
  36 #include "sam9_smc.h"
  37 #include "generic.h"
  38 #include "stamp9g20.h"
  39
  40
  41 static void __init pcontrol_g20_init_early(void)
  42 {
  43         stamp9g20_init_early();
  44 }
  45
  46 static struct sam9_smc_config __initdata pcontrol_smc_config[2] = { {
  47         .ncs_read_setup         = 16,
  48         .nrd_setup              = 18,
  49         .ncs_write_setup        = 16,
  50         .nwe_setup              = 18,
  51
  52         .ncs_read_pulse         = 63,
  53         .nrd_pulse              = 55,
  54         .ncs_write_pulse        = 63,
  55         .nwe_pulse              = 55,
  56
  57         .read_cycle             = 127,
  58         .write_cycle            = 127,
  59
  60         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
  61                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
  62                         | AT91_SMC_DBW_8 | AT91_SMC_PS_4
  63                         | AT91_SMC_TDFMODE,
  64         .tdf_cycles             = 3,
  65 }, {
  66         .ncs_read_setup         = 0,
  67         .nrd_setup              = 0,
  68         .ncs_write_setup        = 0,
  69         .nwe_setup              = 1,
  70
  71         .ncs_read_pulse         = 8,
  72         .nrd_pulse              = 8,
  73         .ncs_write_pulse        = 5,
  74         .nwe_pulse              = 4,
  75
  76         .read_cycle             = 8,
  77         .write_cycle            = 7,
  78
  79         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
  80                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
  81                         | AT91_SMC_DBW_16 | AT91_SMC_PS_8
  82                         | AT91_SMC_TDFMODE,
  83         .tdf_cycles             = 1,
  84 } };
  85
  86 static void __init add_device_pcontrol(void)
  87 {
  88         /* configure chip-select 4 (IO compatible to 8051  X4 ) */
  89         sam9_smc_configure(0, 4, &pcontrol_smc_config[0]);
  90         /* configure chip-select 7 (FerroRAM 256KiBx16bit MR2A16A  D4 ) */
  91         sam9_smc_configure(0, 7, &pcontrol_smc_config[1]);
  92 }
  93
  94
  95 /*
  96  * USB Host port
  97  */
  98 static struct at91_usbh_data __initdata usbh_data = {
  99         .ports          = 2,
 100         .vbus_pin       = {-EINVAL, -EINVAL},
 101         .overcurrent_pin= {-EINVAL, -EINVAL},
 102 };
 103
 104
 105 /*
 106  * USB Device port
 107  */
 108 static struct at91_udc_data __initdata pcontrol_g20_udc_data = {
 109         .vbus_pin       = AT91_PIN_PA22,        /* Detect +5V bus voltage */
 110         .pullup_pin     = AT91_PIN_PA4,         /* K-state, active low */
 111 };
 112
 113
 114 /*
 115  * MACB Ethernet device
 116  */
 117 static struct macb_platform_data __initdata macb_data = {
 118         .phy_irq_pin    = AT91_PIN_PA28,
 119         .is_rmii        = 1,
 120 };
 121
 122
 123 /*
 124  * I2C devices: eeprom and phy/switch
 125  */
 126 static struct i2c_board_info __initdata pcontrol_g20_i2c_devices[] = {
 127 {               /* D7  address width=2, 8KiB */
 128         I2C_BOARD_INFO("24c64", 0x50)
 129 }, {            /* D8  address width=1, 1 byte has 32 bits! */
 130         I2C_BOARD_INFO("lan9303", 0x0a)
 131 }, };
 132
 133
 134 /*
 135  * LEDs
 136  */
 137 static struct gpio_led pcontrol_g20_leds[] = {
 138         {
 139                 .name                   = "LED1",       /* red  H5 */
 140                 .gpio                   = AT91_PIN_PB18,
 141                 .active_low             = 1,
 142                 .default_trigger        = "none",       /* supervisor */
 143         }, {
 144                 .name                   = "LED2",       /* yellow  H7 */
 145                 .gpio                   = AT91_PIN_PB19,
 146                 .active_low             = 1,
 147                 .default_trigger        = "mmc0",       /* SD-card activity */
 148         }, {
 149                 .name                   = "LED3",       /* green  H2 */
 150                 .gpio                   = AT91_PIN_PB20,
 151                 .active_low             = 1,
 152                 .default_trigger        = "heartbeat",  /* blinky */
 153         }, {
 154                 .name                   = "LED4",       /* red  H3 */
 155                 .gpio                   = AT91_PIN_PC6,
 156                 .active_low             = 1,
 157                 .default_trigger        = "none",       /* connection lost */
 158         }, {
 159                 .name                   = "LED5",       /* yellow  H6 */
 160                 .gpio                   = AT91_PIN_PC7,
 161                 .active_low             = 1,
 162                 .default_trigger        = "none",       /* unsent data */
 163         }, {
 164                 .name                   = "LED6",       /* green  H1 */
 165                 .gpio                   = AT91_PIN_PC9,
 166                 .active_low             = 1,
 167                 .default_trigger        = "none",       /* snafu */
 168         }
 169 };
 170
 171
 172 /*
 173  * SPI devices
 174  */
 175 static struct spi_board_info pcontrol_g20_spi_devices[] = {
 176         {
 177                 .modalias       = "spidev",     /* HMI port  X4 */
 178                 .chip_select    = 1,
 179                 .max_speed_hz   = 50 * 1000 * 1000,
 180                 .bus_num        = 0,
 181         }, {
 182                 .modalias       = "spidev",     /* piggyback  A2 */
 183                 .chip_select    = 0,
 184                 .max_speed_hz   = 50 * 1000 * 1000,
 185                 .bus_num        = 1,
 186         },
 187 };
 188
 189
 190 static void __init pcontrol_g20_board_init(void)
 191 {
 192         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) piggyback  A2 */
 193         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS
 194                                                 | ATMEL_UART_RTS);
 195
 196         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) isolated RS485  X5 */
 197         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS
 198                                                 | ATMEL_UART_RTS);
 199
 200         /* USART2 on ttyS3. (Rx, Tx)  9bit-Bus  Multidrop-mode  X4 */
 201         at91_register_uart(AT91SAM9260_ID_US4, 3, 0);
 202         stamp9g20_board_init();
 203         at91_add_device_usbh(&usbh_data);
 204         at91_add_device_eth(&macb_data);
 205         at91_add_device_i2c(pcontrol_g20_i2c_devices,
 206                 ARRAY_SIZE(pcontrol_g20_i2c_devices));
 207         add_device_pcontrol();
 208         at91_add_device_spi(pcontrol_g20_spi_devices,
 209                 ARRAY_SIZE(pcontrol_g20_spi_devices));
 210         at91_add_device_udc(&pcontrol_g20_udc_data);
 211         at91_gpio_leds(pcontrol_g20_leds,
 212                 ARRAY_SIZE(pcontrol_g20_leds));
 213         /* piggyback  A2 */
 214         at91_set_gpio_output(AT91_PIN_PB31, 1);
 215 }
 216
 217
 218 MACHINE_START(PCONTROL_G20, "PControl G20")
 219         /* Maintainer: pgsellmann@portner-elektronik.at */
 220         .timer          = &at91sam926x_timer,
 221         .map_io         = at91_map_io,
 222         .handle_irq     = at91_aic_handle_irq,
 223         .init_early     = pcontrol_g20_init_early,
 224         .init_irq       = at91_init_irq_default,
 225         .init_machine   = pcontrol_g20_board_init,
 226 MACHINE_END