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
 40static 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
 56static 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
 96static void __init add_device_pcontrol(void)
 97{
 98	/* configure chip-select 4 (IO compatible to 8051  X4 ) */
 99	sam9_smc_configure(4, &pcontrol_smc_config[0]);
100	/* configure chip-select 7 (FerroRAM 256KiBx16bit MR2A16A  D4 ) */
101	sam9_smc_configure(7, &pcontrol_smc_config[1]);
102}
103
104
105/*
106 * USB Host port
107 */
108static struct at91_usbh_data __initdata usbh_data = {
109	.ports		= 2,
110};
111
112
113/*
114 * USB Device port
115 */
116static struct at91_udc_data __initdata pcontrol_g20_udc_data = {
117	.vbus_pin	= AT91_PIN_PA22,	/* Detect +5V bus voltage */
118	.pullup_pin	= AT91_PIN_PA4,		/* K-state, active low */
119};
120
121
122/*
123 * MACB Ethernet device
124 */
125static struct at91_eth_data __initdata macb_data = {
126	.phy_irq_pin	= AT91_PIN_PA28,
127	.is_rmii	= 1,
128};
129
130
131/*
132 * I2C devices: eeprom and phy/switch
133 */
134static struct i2c_board_info __initdata pcontrol_g20_i2c_devices[] = {
135{		/* D7  address width=2, 8KiB */
136	I2C_BOARD_INFO("24c64", 0x50)
137}, {		/* D8  address width=1, 1 byte has 32 bits! */
138	I2C_BOARD_INFO("lan9303", 0x0a)
139}, };
140
141
142/*
143 * LEDs
144 */
145static struct gpio_led pcontrol_g20_leds[] = {
146	{
147		.name			= "LED1",	/* red  H5 */
148		.gpio			= AT91_PIN_PB18,
149		.active_low		= 1,
150		.default_trigger	= "none",	/* supervisor */
151	}, {
152		.name			= "LED2",	/* yellow  H7 */
153		.gpio			= AT91_PIN_PB19,
154		.active_low		= 1,
155		.default_trigger	= "mmc0",	/* SD-card activity */
156	}, {
157		.name			= "LED3",	/* green  H2 */
158		.gpio			= AT91_PIN_PB20,
159		.active_low		= 1,
160		.default_trigger	= "heartbeat",	/* blinky */
161	}, {
162		.name			= "LED4",	/* red  H3 */
163		.gpio			= AT91_PIN_PC6,
164		.active_low		= 1,
165		.default_trigger	= "none",	/* connection lost */
166	}, {
167		.name			= "LED5",	/* yellow  H6 */
168		.gpio			= AT91_PIN_PC7,
169		.active_low		= 1,
170		.default_trigger	= "none",	/* unsent data */
171	}, {
172		.name			= "LED6",	/* green  H1 */
173		.gpio			= AT91_PIN_PC9,
174		.active_low		= 1,
175		.default_trigger	= "none",	/* snafu */
176	}
177};
178
179
180/*
181 * SPI devices
182 */
183static struct spi_board_info pcontrol_g20_spi_devices[] = {
184	{
185		.modalias	= "spidev",	/* HMI port  X4 */
186		.chip_select	= 1,
187		.max_speed_hz	= 50 * 1000 * 1000,
188		.bus_num	= 0,
189	}, {
190		.modalias	= "spidev",	/* piggyback  A2 */
191		.chip_select	= 0,
192		.max_speed_hz	= 50 * 1000 * 1000,
193		.bus_num	= 1,
194	},
195};
196
197
198static void __init pcontrol_g20_board_init(void)
199{
200	stamp9g20_board_init();
201	at91_add_device_usbh(&usbh_data);
202	at91_add_device_eth(&macb_data);
203	at91_add_device_i2c(pcontrol_g20_i2c_devices,
204		ARRAY_SIZE(pcontrol_g20_i2c_devices));
205	add_device_pcontrol();
206	at91_add_device_spi(pcontrol_g20_spi_devices,
207		ARRAY_SIZE(pcontrol_g20_spi_devices));
208	at91_add_device_udc(&pcontrol_g20_udc_data);
209	at91_gpio_leds(pcontrol_g20_leds,
210		ARRAY_SIZE(pcontrol_g20_leds));
211	/* piggyback  A2 */
212	at91_set_gpio_output(AT91_PIN_PB31, 1);
213}
214
215
216MACHINE_START(PCONTROL_G20, "PControl G20")
217	/* Maintainer: pgsellmann@portner-elektronik.at */
218	.timer		= &at91sam926x_timer,
219	.map_io		= at91_map_io,
220	.init_early	= pcontrol_g20_init_early,
221	.init_irq	= at91_init_irq_default,
222	.init_machine	= pcontrol_g20_board_init,
223MACHINE_END