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authorsedji gaouaou <sedji.gaouaou@atmel.com>2008-07-10 05:15:35 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-07-10 07:13:47 -0400
commit613526677a74c2b3d1b1696ea7334b2cf35155b3 (patch)
tree785ec10351bceedc278bba66a54c212f8e3d5f54 /arch/arm/mach-at91/board-sam9g20ek.c
parent16074b669ea97e2bef494ec7cceb475566f763e3 (diff)
[ARM] 5130/4: Support for the at91sam9g20
Support for the at91sam9g20 : Atmel 400Mhz ARM 926ej-s SOC. AT91sam9g20 is an evolution of the at91sam9260 with a faster clock speed. We created a new board for this device but based the chip support directly on 9260 files with little updates. Here is the chip page on Atmel wabsite: http://atmel.com/dyn/products/product_card.asp?part_id=4337 Signed-off-by: Sedji Gaouaou <sedji.gaouaou@atmel.com> Signed-off-by: Justin Waters <justin.waters@timesys.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-at91/board-sam9g20ek.c')
-rw-r--r--arch/arm/mach-at91/board-sam9g20ek.c218
1 files changed, 218 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/board-sam9g20ek.c b/arch/arm/mach-at91/board-sam9g20ek.c
new file mode 100644
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1/*
2 * Copyright (C) 2005 SAN People
3 * Copyright (C) 2008 Atmel
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#include <linux/types.h>
21#include <linux/init.h>
22#include <linux/mm.h>
23#include <linux/module.h>
24#include <linux/platform_device.h>
25#include <linux/spi/spi.h>
26#include <linux/spi/at73c213.h>
27#include <linux/clk.h>
28
29#include <asm/hardware.h>
30#include <asm/setup.h>
31#include <asm/mach-types.h>
32#include <asm/irq.h>
33
34#include <asm/mach/arch.h>
35#include <asm/mach/map.h>
36#include <asm/mach/irq.h>
37
38#include <asm/arch/board.h>
39#include <asm/arch/gpio.h>
40
41#include "generic.h"
42
43
44static void __init ek_map_io(void)
45{
46 /* Initialize processor: 18.432 MHz crystal */
47 at91sam9260_initialize(18432000);
48
49 /* DGBU on ttyS0. (Rx & Tx only) */
50 at91_register_uart(0, 0, 0);
51
52 /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
53 at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
54 | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
55 | ATMEL_UART_RI);
56
57 /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
58 at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
59
60 /* set serial console to ttyS0 (ie, DBGU) */
61 at91_set_serial_console(0);
62}
63
64static void __init ek_init_irq(void)
65{
66 at91sam9260_init_interrupts(NULL);
67}
68
69
70/*
71 * USB Host port
72 */
73static struct at91_usbh_data __initdata ek_usbh_data = {
74 .ports = 2,
75};
76
77/*
78 * USB Device port
79 */
80static struct at91_udc_data __initdata ek_udc_data = {
81 .vbus_pin = AT91_PIN_PC5,
82 .pullup_pin = 0, /* pull-up driven by UDC */
83};
84
85
86/*
87 * SPI devices.
88 */
89static struct spi_board_info ek_spi_devices[] = {
90#if !defined(CONFIG_MMC_AT91)
91 { /* DataFlash chip */
92 .modalias = "mtd_dataflash",
93 .chip_select = 1,
94 .max_speed_hz = 15 * 1000 * 1000,
95 .bus_num = 0,
96 },
97#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
98 { /* DataFlash card */
99 .modalias = "mtd_dataflash",
100 .chip_select = 0,
101 .max_speed_hz = 15 * 1000 * 1000,
102 .bus_num = 0,
103 },
104#endif
105#endif
106};
107
108
109/*
110 * MACB Ethernet device
111 */
112static struct at91_eth_data __initdata ek_macb_data = {
113 .phy_irq_pin = AT91_PIN_PA7,
114 .is_rmii = 1,
115};
116
117
118/*
119 * NAND flash
120 */
121static struct mtd_partition __initdata ek_nand_partition[] = {
122 {
123 .name = "Bootstrap",
124 .offset = 0,
125 .size = 4 * 1024 * 1024,
126 },
127 {
128 .name = "Partition 1",
129 .offset = 4 * 1024 * 1024,
130 .size = 60 * 1024 * 1024,
131 },
132 {
133 .name = "Partition 2",
134 .offset = 64 * 1024 * 1024,
135 .size = MTDPART_SIZ_FULL,
136 },
137};
138
139static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
140{
141 *num_partitions = ARRAY_SIZE(ek_nand_partition);
142 return ek_nand_partition;
143}
144
145/* det_pin is not connected */
146static struct at91_nand_data __initdata ek_nand_data = {
147 .ale = 21,
148 .cle = 22,
149 .rdy_pin = AT91_PIN_PC13,
150 .enable_pin = AT91_PIN_PC14,
151 .partition_info = nand_partitions,
152#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
153 .bus_width_16 = 1,
154#else
155 .bus_width_16 = 0,
156#endif
157};
158
159
160/*
161 * MCI (SD/MMC)
162 * det_pin, wp_pin and vcc_pin are not connected
163 */
164static struct at91_mmc_data __initdata ek_mmc_data = {
165 .slot_b = 1,
166 .wire4 = 1,
167};
168
169
170/*
171 * LEDs
172 */
173static struct gpio_led ek_leds[] = {
174 { /* "bottom" led, green, userled1 to be defined */
175 .name = "ds5",
176 .gpio = AT91_PIN_PA6,
177 .active_low = 1,
178 .default_trigger = "none",
179 },
180 { /* "power" led, yellow */
181 .name = "ds1",
182 .gpio = AT91_PIN_PA9,
183 .default_trigger = "heartbeat",
184 }
185};
186
187static void __init ek_board_init(void)
188{
189 /* Serial */
190 at91_add_device_serial();
191 /* USB Host */
192 at91_add_device_usbh(&ek_usbh_data);
193 /* USB Device */
194 at91_add_device_udc(&ek_udc_data);
195 /* SPI */
196 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
197 /* NAND */
198 at91_add_device_nand(&ek_nand_data);
199 /* Ethernet */
200 at91_add_device_eth(&ek_macb_data);
201 /* MMC */
202 at91_add_device_mmc(0, &ek_mmc_data);
203 /* I2C */
204 at91_add_device_i2c(NULL, 0);
205 /* LEDs */
206 at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
207}
208
209MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")
210 /* Maintainer: Atmel */
211 .phys_io = AT91_BASE_SYS,
212 .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
213 .boot_params = AT91_SDRAM_BASE + 0x100,
214 .timer = &at91sam926x_timer,
215 .map_io = ek_map_io,
216 .init_irq = ek_init_irq,
217 .init_machine = ek_board_init,
218MACHINE_END