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/arch/arm/mach-at91/board-at572d940hf_ek.c

https://bitbucket.org/thekraven/iscream_thunderc-2.6.35
C | 328 lines | 214 code | 48 blank | 66 comment | 1 complexity | 16727d82e647b9ce619e14f181175774 MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
  1/*
  2 * linux/arch/arm/mach-at91/board-at572d940hf_ek.c
  3 *
  4 * Copyright (C) 2008 Atmel Antonio R. Costa <costa.antonior@gmail.com>
  5 * Copyright (C) 2005 SAN People
  6 *
  7 * This program is free software; you can redistribute it and/or modify
  8 * it under the terms of the GNU General Public License as published by
  9 * the Free Software Foundation; either version 2 of the License, or
 10 * (at your option) any later version.
 11 *
 12 * This program is distributed in the hope that it will be useful,
 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 15 * GNU General Public License for more details.
 16 *
 17 * You should have received a copy of the GNU General Public License
 18 * along with this program; if not, write to the Free Software
 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 20 */
 21
 22#include <linux/types.h>
 23#include <linux/init.h>
 24#include <linux/mm.h>
 25#include <linux/module.h>
 26#include <linux/platform_device.h>
 27#include <linux/spi/spi.h>
 28#include <linux/spi/ds1305.h>
 29#include <linux/irq.h>
 30#include <linux/mtd/physmap.h>
 31
 32#include <mach/hardware.h>
 33#include <asm/setup.h>
 34#include <asm/mach-types.h>
 35#include <asm/irq.h>
 36
 37#include <asm/mach/arch.h>
 38#include <asm/mach/map.h>
 39#include <asm/mach/irq.h>
 40
 41#include <mach/board.h>
 42#include <mach/gpio.h>
 43#include <mach/at91sam9_smc.h>
 44
 45#include "sam9_smc.h"
 46#include "generic.h"
 47
 48
 49static void __init eb_map_io(void)
 50{
 51	/* Initialize processor: 12.500 MHz crystal */
 52	at572d940hf_initialize(12000000);
 53
 54	/* DBGU on ttyS0. (Rx & Tx only) */
 55	at91_register_uart(0, 0, 0);
 56
 57	/* USART0 on ttyS1. (Rx & Tx only) */
 58	at91_register_uart(AT572D940HF_ID_US0, 1, 0);
 59
 60	/* USART1 on ttyS2. (Rx & Tx only) */
 61	at91_register_uart(AT572D940HF_ID_US1, 2, 0);
 62
 63	/* USART2 on ttyS3. (Tx & Rx only */
 64	at91_register_uart(AT572D940HF_ID_US2, 3, 0);
 65
 66	/* set serial console to ttyS0 (ie, DBGU) */
 67	at91_set_serial_console(0);
 68}
 69
 70static void __init eb_init_irq(void)
 71{
 72	at572d940hf_init_interrupts(NULL);
 73}
 74
 75
 76/*
 77 * USB Host Port
 78 */
 79static struct at91_usbh_data __initdata eb_usbh_data = {
 80	.ports		= 2,
 81};
 82
 83
 84/*
 85 * USB Device Port
 86 */
 87static struct at91_udc_data __initdata eb_udc_data = {
 88	.vbus_pin	= 0,		/* no VBUS detection,UDC always on */
 89	.pullup_pin	= 0,		/* pull-up driven by UDC */
 90};
 91
 92
 93/*
 94 * MCI (SD/MMC)
 95 */
 96static struct at91_mmc_data __initdata eb_mmc_data = {
 97	.wire4		= 1,
 98/*	.det_pin	= ... not connected */
 99/*	.wp_pin		= ... not connected */
100/*	.vcc_pin	= ... not connected */
101};
102
103
104/*
105 * MACB Ethernet device
106 */
107static struct at91_eth_data __initdata eb_eth_data = {
108	.phy_irq_pin	= AT91_PIN_PB25,
109	.is_rmii	= 1,
110};
111
112/*
113 * NOR flash
114 */
115
116static struct mtd_partition eb_nor_partitions[] = {
117	{
118		.name		= "Raw Environment",
119		.offset		= 0,
120		.size		= SZ_4M,
121		.mask_flags	= 0,
122	},
123	{
124		.name		= "OS FS",
125		.offset		= MTDPART_OFS_APPEND,
126		.size		= 3 * SZ_1M,
127		.mask_flags	= 0,
128	},
129	{
130		.name		= "APP FS",
131		.offset		= MTDPART_OFS_APPEND,
132		.size		= MTDPART_SIZ_FULL,
133		.mask_flags	= 0,
134	},
135};
136
137static void nor_flash_set_vpp(struct map_info* mi, int i) {
138};
139
140static struct physmap_flash_data nor_flash_data = {
141	.width		= 4,
142	.parts		= eb_nor_partitions,
143	.nr_parts	= ARRAY_SIZE(eb_nor_partitions),
144	.set_vpp	= nor_flash_set_vpp,
145};
146
147static struct resource nor_flash_resources[] = {
148	{
149		.start	= AT91_CHIPSELECT_0,
150		.end	= AT91_CHIPSELECT_0 + SZ_16M - 1,
151		.flags	= IORESOURCE_MEM,
152	},
153};
154
155static struct platform_device nor_flash = {
156	.name		= "physmap-flash",
157	.id		= 0,
158	.dev		= {
159				.platform_data = &nor_flash_data,
160			},
161	.resource	= nor_flash_resources,
162	.num_resources	= ARRAY_SIZE(nor_flash_resources),
163};
164
165static struct sam9_smc_config __initdata eb_nor_smc_config = {
166	.ncs_read_setup		= 1,
167	.nrd_setup		= 1,
168	.ncs_write_setup	= 1,
169	.nwe_setup		= 1,
170
171	.ncs_read_pulse		= 7,
172	.nrd_pulse		= 7,
173	.ncs_write_pulse	= 7,
174	.nwe_pulse		= 7,
175
176	.read_cycle		= 9,
177	.write_cycle		= 9,
178
179	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_32,
180	.tdf_cycles		= 1,
181};
182
183static void __init eb_add_device_nor(void)
184{
185	/* configure chip-select 0 (NOR) */
186	sam9_smc_configure(0, &eb_nor_smc_config);
187	platform_device_register(&nor_flash);
188}
189
190/*
191 * NAND flash
192 */
193static struct mtd_partition __initdata eb_nand_partition[] = {
194	{
195		.name	= "Partition 1",
196		.offset	= 0,
197		.size	= SZ_16M,
198	},
199	{
200		.name	= "Partition 2",
201		.offset = MTDPART_OFS_NXTBLK,
202		.size	= MTDPART_SIZ_FULL,
203	}
204};
205
206static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
207{
208	*num_partitions = ARRAY_SIZE(eb_nand_partition);
209	return eb_nand_partition;
210}
211
212static struct atmel_nand_data __initdata eb_nand_data = {
213	.ale		= 22,
214	.cle		= 21,
215/*	.det_pin	= ... not connected */
216/*	.rdy_pin	= AT91_PIN_PC16, */
217	.enable_pin	= AT91_PIN_PA15,
218	.partition_info	= nand_partitions,
219#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
220	.bus_width_16	= 1,
221#else
222	.bus_width_16	= 0,
223#endif
224};
225
226static struct sam9_smc_config __initdata eb_nand_smc_config = {
227	.ncs_read_setup		= 0,
228	.nrd_setup		= 0,
229	.ncs_write_setup	= 1,
230	.nwe_setup		= 1,
231
232	.ncs_read_pulse		= 3,
233	.nrd_pulse		= 3,
234	.ncs_write_pulse	= 3,
235	.nwe_pulse		= 3,
236
237	.read_cycle		= 5,
238	.write_cycle		= 5,
239
240	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
241	.tdf_cycles		= 12,
242};
243
244static void __init eb_add_device_nand(void)
245{
246	/* setup bus-width (8 or 16) */
247	if (eb_nand_data.bus_width_16)
248		eb_nand_smc_config.mode |= AT91_SMC_DBW_16;
249	else
250		eb_nand_smc_config.mode |= AT91_SMC_DBW_8;
251
252	/* configure chip-select 3 (NAND) */
253	sam9_smc_configure(3, &eb_nand_smc_config);
254
255	at91_add_device_nand(&eb_nand_data);
256}
257
258
259/*
260 * SPI devices
261 */
262static struct resource rtc_resources[] = {
263	[0] = {
264		.start	= AT572D940HF_ID_IRQ1,
265		.end	= AT572D940HF_ID_IRQ1,
266		.flags	= IORESOURCE_IRQ,
267	},
268};
269
270static struct ds1305_platform_data ds1306_data = {
271	.is_ds1306	= true,
272	.en_1hz		= false,
273};
274
275static struct spi_board_info eb_spi_devices[] = {
276	{	/* RTC Dallas DS1306 */
277		.modalias	= "rtc-ds1305",
278		.chip_select	= 3,
279		.mode		= SPI_CS_HIGH | SPI_CPOL | SPI_CPHA,
280		.max_speed_hz	= 500000,
281		.bus_num	= 0,
282		.irq		= AT572D940HF_ID_IRQ1,
283		.platform_data	= (void *) &ds1306_data,
284	},
285#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
286	{	/* Dataflash card */
287		.modalias	= "mtd_dataflash",
288		.chip_select	= 0,
289		.max_speed_hz	= 15 * 1000 * 1000,
290		.bus_num	= 0,
291	},
292#endif
293};
294
295static void __init eb_board_init(void)
296{
297	/* Serial */
298	at91_add_device_serial();
299	/* USB Host */
300	at91_add_device_usbh(&eb_usbh_data);
301	/* USB Device */
302	at91_add_device_udc(&eb_udc_data);
303	/* I2C */
304	at91_add_device_i2c(NULL, 0);
305	/* NOR */
306	eb_add_device_nor();
307	/* NAND */
308	eb_add_device_nand();
309	/* SPI */
310	at91_add_device_spi(eb_spi_devices, ARRAY_SIZE(eb_spi_devices));
311	/* MMC */
312	at91_add_device_mmc(0, &eb_mmc_data);
313	/* Ethernet */
314	at91_add_device_eth(&eb_eth_data);
315	/* mAgic */
316	at91_add_device_mAgic();
317}
318
319MACHINE_START(AT572D940HFEB, "Atmel AT91D940HF-EB")
320	/* Maintainer: Atmel <costa.antonior@gmail.com> */
321	.phys_io	= AT91_BASE_SYS,
322	.io_pg_offst	= (AT91_VA_BASE_SYS >> 18) & 0xfffc,
323	.boot_params	= AT91_SDRAM_BASE + 0x100,
324	.timer		= &at91sam926x_timer,
325	.map_io		= eb_map_io,
326	.init_irq	= eb_init_irq,
327	.init_machine	= eb_board_init,
328MACHINE_END