abf0c1bc94
Board is a carrier board for Stamp9G20, with additional peripherals for a building automation system Signed-off-by: Peter Gsellmann <pgsellmann@portner-elektronik.at> [nicolas.ferre@atmel.com: remove machine_desc.io_pg_offst and .phys_io] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
322 lines
7.4 KiB
C
322 lines
7.4 KiB
C
/*
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* Copyright (C) 2010 Christian Glindkamp <christian.glindkamp@taskit.de>
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* taskit GmbH
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* copied and adjusted from board-stamp9g20.c
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* by Peter Gsellmann <pgsellmann@portner-elektronik.at>
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*/
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#include <linux/mm.h>
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#include <linux/platform_device.h>
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#include <linux/gpio.h>
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#include <linux/w1-gpio.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <mach/board.h>
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#include <mach/at91sam9_smc.h>
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#include "sam9_smc.h"
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#include "generic.h"
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static void __init pcontrol_g20_map_io(void)
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{
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/* Initialize processor: 18.432 MHz crystal */
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at91sam9260_initialize(18432000);
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/* DGBU on ttyS0. (Rx, Tx) only TTL -> JTAG connector X7 17,19 ) */
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at91_register_uart(0, 0, 0);
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/* USART0 on ttyS1. (Rx, Tx, CTS, RTS) piggyback A2 */
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at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS
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| ATMEL_UART_RTS);
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/* USART1 on ttyS2. (Rx, Tx, CTS, RTS) isolated RS485 X5 */
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at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS
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| ATMEL_UART_RTS);
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/* USART2 on ttyS3. (Rx, Tx) 9bit-Bus Multidrop-mode X4 */
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at91_register_uart(AT91SAM9260_ID_US4, 3, 0);
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/* set serial console to ttyS0 (ie, DBGU) */
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at91_set_serial_console(0);
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}
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static void __init init_irq(void)
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{
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at91sam9260_init_interrupts(NULL);
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}
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/*
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* NAND flash 512MiB 1,8V 8-bit, sector size 128 KiB
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*/
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static struct atmel_nand_data __initdata nand_data = {
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.ale = 21,
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.cle = 22,
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.rdy_pin = AT91_PIN_PC13,
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.enable_pin = AT91_PIN_PC14,
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};
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/*
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* Bus timings; unit = 7.57ns
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*/
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static struct sam9_smc_config __initdata nand_smc_config = {
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.ncs_read_setup = 0,
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.nrd_setup = 2,
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.ncs_write_setup = 0,
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.nwe_setup = 2,
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.ncs_read_pulse = 4,
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.nrd_pulse = 4,
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.ncs_write_pulse = 4,
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.nwe_pulse = 4,
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.read_cycle = 7,
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.write_cycle = 7,
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.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
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| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
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.tdf_cycles = 3,
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};
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static struct sam9_smc_config __initdata pcontrol_smc_config[2] = { {
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.ncs_read_setup = 16,
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.nrd_setup = 18,
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.ncs_write_setup = 16,
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.nwe_setup = 18,
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.ncs_read_pulse = 63,
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.nrd_pulse = 55,
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.ncs_write_pulse = 63,
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.nwe_pulse = 55,
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.read_cycle = 127,
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.write_cycle = 127,
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.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
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| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
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| AT91_SMC_DBW_8 | AT91_SMC_PS_4
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| AT91_SMC_TDFMODE,
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.tdf_cycles = 3,
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}, {
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.ncs_read_setup = 0,
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.nrd_setup = 0,
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.ncs_write_setup = 0,
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.nwe_setup = 1,
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.ncs_read_pulse = 8,
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.nrd_pulse = 8,
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.ncs_write_pulse = 5,
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.nwe_pulse = 4,
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.read_cycle = 8,
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.write_cycle = 7,
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.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
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| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
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| AT91_SMC_DBW_16 | AT91_SMC_PS_8
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| AT91_SMC_TDFMODE,
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.tdf_cycles = 1,
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} };
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static void __init add_device_nand(void)
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{
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/* configure chip-select 3 (NAND) */
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sam9_smc_configure(3, &nand_smc_config);
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at91_add_device_nand(&nand_data);
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}
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static void __init add_device_pcontrol(void)
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{
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/* configure chip-select 4 (IO compatible to 8051 X4 ) */
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sam9_smc_configure(4, &pcontrol_smc_config[0]);
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/* configure chip-select 7 (FerroRAM 256KiBx16bit MR2A16A D4 ) */
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sam9_smc_configure(7, &pcontrol_smc_config[1]);
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}
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/*
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* MCI (SD/MMC)
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* det_pin, wp_pin and vcc_pin are not connected
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*/
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#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
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static struct mci_platform_data __initdata mmc_data = {
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.slot[0] = {
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.bus_width = 4,
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},
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};
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#else
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static struct at91_mmc_data __initdata mmc_data = {
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.wire4 = 1,
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};
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#endif
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/*
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* USB Host port
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*/
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static struct at91_usbh_data __initdata usbh_data = {
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.ports = 2,
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};
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/*
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* USB Device port
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*/
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static struct at91_udc_data __initdata pcontrol_g20_udc_data = {
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.vbus_pin = AT91_PIN_PA22, /* Detect +5V bus voltage */
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.pullup_pin = AT91_PIN_PA4, /* K-state, active low */
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};
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/*
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* MACB Ethernet device
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*/
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static struct at91_eth_data __initdata macb_data = {
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.phy_irq_pin = AT91_PIN_PA28,
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.is_rmii = 1,
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};
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/*
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* I2C devices: eeprom and phy/switch
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*/
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static struct i2c_board_info __initdata pcontrol_g20_i2c_devices[] = {
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{ /* D7 address width=2, 8KiB */
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I2C_BOARD_INFO("24c64", 0x50)
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}, { /* D8 address width=1, 1 byte has 32 bits! */
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I2C_BOARD_INFO("lan9303", 0x0a)
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}, };
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/*
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* LEDs
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*/
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static struct gpio_led pcontrol_g20_leds[] = {
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{
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.name = "LED1", /* red H5 */
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.gpio = AT91_PIN_PB18,
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.active_low = 1,
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.default_trigger = "none", /* supervisor */
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}, {
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.name = "LED2", /* yellow H7 */
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.gpio = AT91_PIN_PB19,
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.active_low = 1,
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.default_trigger = "mmc0", /* SD-card activity */
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}, {
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.name = "LED3", /* green H2 */
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.gpio = AT91_PIN_PB20,
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.active_low = 1,
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.default_trigger = "heartbeat", /* blinky */
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}, {
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.name = "LED4", /* red H3 */
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.gpio = AT91_PIN_PC6,
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.active_low = 1,
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.default_trigger = "none", /* connection lost */
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}, {
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.name = "LED5", /* yellow H6 */
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.gpio = AT91_PIN_PC7,
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.active_low = 1,
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.default_trigger = "none", /* unsent data */
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}, {
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.name = "LED6", /* green H1 */
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.gpio = AT91_PIN_PC9,
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.active_low = 1,
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.default_trigger = "none", /* snafu */
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}
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};
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/*
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* SPI devices
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*/
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static struct spi_board_info pcontrol_g20_spi_devices[] = {
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{
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.modalias = "spidev", /* HMI port X4 */
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.chip_select = 1,
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.max_speed_hz = 50 * 1000 * 1000,
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.bus_num = 0,
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}, {
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.modalias = "spidev", /* piggyback A2 */
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.chip_select = 0,
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.max_speed_hz = 50 * 1000 * 1000,
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.bus_num = 1,
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},
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};
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/*
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* Dallas 1-Wire DS2431
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*/
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static struct w1_gpio_platform_data w1_gpio_pdata = {
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.pin = AT91_PIN_PA29,
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.is_open_drain = 1,
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};
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static struct platform_device w1_device = {
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.name = "w1-gpio",
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.id = -1,
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.dev.platform_data = &w1_gpio_pdata,
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};
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static void add_wire1(void)
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{
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at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
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at91_set_multi_drive(w1_gpio_pdata.pin, 1);
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platform_device_register(&w1_device);
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}
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static void __init pcontrol_g20_board_init(void)
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{
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at91_add_device_serial();
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add_device_nand();
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#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
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at91_add_device_mci(0, &mmc_data);
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#else
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at91_add_device_mmc(0, &mmc_data);
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#endif
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at91_add_device_usbh(&usbh_data);
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at91_add_device_eth(&macb_data);
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at91_add_device_i2c(pcontrol_g20_i2c_devices,
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ARRAY_SIZE(pcontrol_g20_i2c_devices));
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add_wire1();
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add_device_pcontrol();
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at91_add_device_spi(pcontrol_g20_spi_devices,
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ARRAY_SIZE(pcontrol_g20_spi_devices));
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at91_add_device_udc(&pcontrol_g20_udc_data);
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at91_gpio_leds(pcontrol_g20_leds,
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ARRAY_SIZE(pcontrol_g20_leds));
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/* piggyback A2 */
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at91_set_gpio_output(AT91_PIN_PB31, 1);
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}
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MACHINE_START(PCONTROL_G20, "PControl G20")
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/* Maintainer: pgsellmann@portner-elektronik.at */
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.boot_params = AT91_SDRAM_BASE + 0x100,
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.timer = &at91sam926x_timer,
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.map_io = pcontrol_g20_map_io,
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.init_irq = init_irq,
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.init_machine = pcontrol_g20_board_init,
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MACHINE_END
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