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/board.h>
  33 #include <mach/at91sam9_smc.h>
  34 #include <mach/stamp9g20.h>
  35
  36 #include "sam9_smc.h"
  37 #include "generic.h"
  38
  39
  40 static void __init pcontrol_g20_init_early(void)
  41 {
  42         stamp9g20_init_early();
  43
  44         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) piggyback  A2 */
  45         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS
  46                                                 | ATMEL_UART_RTS);
  47
  48         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) isolated RS485  X5 */
  49         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS
  50                                                 | ATMEL_UART_RTS);
  51
  52         /* USART2 on ttyS3. (Rx, Tx)  9bit-Bus  Multidrop-mode  X4 */
  53         at91_register_uart(AT91SAM9260_ID_US4, 3, 0);
  54 }
  55
  56 static struct sam9_smc_config __initdata pcontrol_smc_config[2] = { {
  57         .ncs_read_setup         = 16,
  58         .nrd_setup              = 18,
  59         .ncs_write_setup        = 16,
  60         .nwe_setup              = 18,
  61
  62         .ncs_read_pulse         = 63,
  63         .nrd_pulse              = 55,
  64         .ncs_write_pulse        = 63,
  65         .nwe_pulse              = 55,
  66
  67         .read_cycle             = 127,
  68         .write_cycle            = 127,
  69
  70         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
  71                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
  72                         | AT91_SMC_DBW_8 | AT91_SMC_PS_4
  73                         | AT91_SMC_TDFMODE,
  74         .tdf_cycles             = 3,
  75 }, {
  76         .ncs_read_setup         = 0,
  77         .nrd_setup              = 0,
  78         .ncs_write_setup        = 0,
  79         .nwe_setup              = 1,
  80
  81         .ncs_read_pulse         = 8,
  82         .nrd_pulse              = 8,
  83         .ncs_write_pulse        = 5,
  84         .nwe_pulse              = 4,
  85
  86         .read_cycle             = 8,
  87         .write_cycle            = 7,
  88
  89         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
  90                         | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
  91                         | AT91_SMC_DBW_16 | AT91_SMC_PS_8
  92                         | AT91_SMC_TDFMODE,
  93         .tdf_cycles             = 1,
  94 } };
  95
  96 static void __init add_device_pcontrol(void)
  97 {
  98         /* configure chip-select 4 (IO compatible to 8051  X4 ) */
  99         sam9_smc_configure(0, 4, &pcontrol_smc_config[0]);
 100         /* configure chip-select 7 (FerroRAM 256KiBx16bit MR2A16A  D4 ) */
 101         sam9_smc_configure(0, 7, &pcontrol_smc_config[1]);
 102 }
 103
 104
 105 /*
 106  * USB Host port
 107  */
 108 static struct at91_usbh_data __initdata usbh_data = {
 109         .ports          = 2,
 110         .vbus_pin       = {-EINVAL, -EINVAL},
 111         .overcurrent_pin= {-EINVAL, -EINVAL},
 112 };
 113
 114
 115 /*
 116  * USB Device port
 117  */
 118 static struct at91_udc_data __initdata pcontrol_g20_udc_data = {
 119         .vbus_pin       = AT91_PIN_PA22,        /* Detect +5V bus voltage */
 120         .pullup_pin     = AT91_PIN_PA4,         /* K-state, active low */
 121 };
 122
 123
 124 /*
 125  * MACB Ethernet device
 126  */
 127 static struct macb_platform_data __initdata macb_data = {
 128         .phy_irq_pin    = AT91_PIN_PA28,
 129         .is_rmii        = 1,
 130 };
 131
 132
 133 /*
 134  * I2C devices: eeprom and phy/switch
 135  */
 136 static struct i2c_board_info __initdata pcontrol_g20_i2c_devices[] = {
 137 {               /* D7  address width=2, 8KiB */
 138         I2C_BOARD_INFO("24c64", 0x50)
 139 }, {            /* D8  address width=1, 1 byte has 32 bits! */
 140         I2C_BOARD_INFO("lan9303", 0x0a)
 141 }, };
 142
 143
 144 /*
 145  * LEDs
 146  */
 147 static struct gpio_led pcontrol_g20_leds[] = {
 148         {
 149                 .name                   = "LED1",       /* red  H5 */
 150                 .gpio                   = AT91_PIN_PB18,
 151                 .active_low             = 1,
 152                 .default_trigger        = "none",       /* supervisor */
 153         }, {
 154                 .name                   = "LED2",       /* yellow  H7 */
 155                 .gpio                   = AT91_PIN_PB19,
 156                 .active_low             = 1,
 157                 .default_trigger        = "mmc0",       /* SD-card activity */
 158         }, {
 159                 .name                   = "LED3",       /* green  H2 */
 160                 .gpio                   = AT91_PIN_PB20,
 161                 .active_low             = 1,
 162                 .default_trigger        = "heartbeat",  /* blinky */
 163         }, {
 164                 .name                   = "LED4",       /* red  H3 */
 165                 .gpio                   = AT91_PIN_PC6,
 166                 .active_low             = 1,
 167                 .default_trigger        = "none",       /* connection lost */
 168         }, {
 169                 .name                   = "LED5",       /* yellow  H6 */
 170                 .gpio                   = AT91_PIN_PC7,
 171                 .active_low             = 1,
 172                 .default_trigger        = "none",       /* unsent data */
 173         }, {
 174                 .name                   = "LED6",       /* green  H1 */
 175                 .gpio                   = AT91_PIN_PC9,
 176                 .active_low             = 1,
 177                 .default_trigger        = "none",       /* snafu */
 178         }
 179 };
 180
 181
 182 /*
 183  * SPI devices
 184  */
 185 static struct spi_board_info pcontrol_g20_spi_devices[] = {
 186         {
 187                 .modalias       = "spidev",     /* HMI port  X4 */
 188                 .chip_select    = 1,
 189                 .max_speed_hz   = 50 * 1000 * 1000,
 190                 .bus_num        = 0,
 191         }, {
 192                 .modalias       = "spidev",     /* piggyback  A2 */
 193                 .chip_select    = 0,
 194                 .max_speed_hz   = 50 * 1000 * 1000,
 195                 .bus_num        = 1,
 196         },
 197 };
 198
 199
 200 static void __init pcontrol_g20_board_init(void)
 201 {
 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         .init_early     = pcontrol_g20_init_early,
 223         .init_irq       = at91_init_irq_default,
 224         .init_machine   = pcontrol_g20_board_init,
 225 MACHINE_END