aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-mx2/pcm038.c
blob: 9a3483c8f58c17983ed8b34c0449b1598a79c370 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
/*
 * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
 * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 */

#include <linux/i2c.h>
#include <linux/i2c/at24.h>
#include <linux/io.h>
#include <linux/mtd/plat-ram.h>
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>

#include <mach/board-pcm038.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/i2c.h>
#include <mach/iomux.h>
#include <mach/imx-uart.h>
#include <mach/mxc_nand.h>

#include "devices.h"

static int pcm038_pins[] = {
	/* UART1 */
	PE12_PF_UART1_TXD,
	PE13_PF_UART1_RXD,
	PE14_PF_UART1_CTS,
	PE15_PF_UART1_RTS,
	/* UART2 */
	PE3_PF_UART2_CTS,
	PE4_PF_UART2_RTS,
	PE6_PF_UART2_TXD,
	PE7_PF_UART2_RXD,
	/* UART3 */
	PE8_PF_UART3_TXD,
	PE9_PF_UART3_RXD,
	PE10_PF_UART3_CTS,
	PE11_PF_UART3_RTS,
	/* FEC */
	PD0_AIN_FEC_TXD0,
	PD1_AIN_FEC_TXD1,
	PD2_AIN_FEC_TXD2,
	PD3_AIN_FEC_TXD3,
	PD4_AOUT_FEC_RX_ER,
	PD5_AOUT_FEC_RXD1,
	PD6_AOUT_FEC_RXD2,
	PD7_AOUT_FEC_RXD3,
	PD8_AF_FEC_MDIO,
	PD9_AIN_FEC_MDC,
	PD10_AOUT_FEC_CRS,
	PD11_AOUT_FEC_TX_CLK,
	PD12_AOUT_FEC_RXD0,
	PD13_AOUT_FEC_RX_DV,
	PD14_AOUT_FEC_RX_CLK,
	PD15_AOUT_FEC_COL,
	PD16_AIN_FEC_TX_ER,
	PF23_AIN_FEC_TX_EN,
	/* I2C2 */
	PC5_PF_I2C2_SDA,
	PC6_PF_I2C2_SCL,
	/* SPI1 */
	PD25_PF_CSPI1_RDY,
	PD27_PF_CSPI1_SS1,
	PD28_PF_CSPI1_SS0,
	PD29_PF_CSPI1_SCLK,
	PD30_PF_CSPI1_MISO,
	PD31_PF_CSPI1_MOSI,
	/* SSI1 */
	PC20_PF_SSI1_FS,
	PC21_PF_SSI1_RXD,
	PC22_PF_SSI1_TXD,
	PC23_PF_SSI1_CLK,
	/* SSI4 */
	PC16_PF_SSI4_FS,
	PC17_PF_SSI4_RXD,
	PC18_PF_SSI4_TXD,
	PC19_PF_SSI4_CLK,
};

/*
 * Phytec's PCM038 comes with 2MiB battery buffered SRAM,
 * 16 bit width
 */

static struct platdata_mtd_ram pcm038_sram_data = {
	.bankwidth = 2,
};

static struct resource pcm038_sram_resource = {
	.start = CS1_BASE_ADDR,
	.end   = CS1_BASE_ADDR + 512 * 1024 - 1,
	.flags = IORESOURCE_MEM,
};

static struct platform_device pcm038_sram_mtd_device = {
	.name = "mtd-ram",
	.id = 0,
	.dev = {
		.platform_data = &pcm038_sram_data,
	},
	.num_resources = 1,
	.resource = &pcm038_sram_resource,
};

/*
 * Phytec's phyCORE-i.MX27 comes with 32MiB flash,
 * 16 bit width
 */
static struct physmap_flash_data pcm038_flash_data = {
	.width = 2,
};

static struct resource pcm038_flash_resource = {
	.start = 0xc0000000,
	.end   = 0xc1ffffff,
	.flags = IORESOURCE_MEM,
};

static struct platform_device pcm038_nor_mtd_device = {
	.name = "physmap-flash",
	.id = 0,
	.dev = {
		.platform_data = &pcm038_flash_data,
	},
	.num_resources = 1,
	.resource = &pcm038_flash_resource,
};

static struct imxuart_platform_data uart_pdata[] = {
	{
		.flags = IMXUART_HAVE_RTSCTS,
	}, {
		.flags = IMXUART_HAVE_RTSCTS,
	}, {
		.flags = IMXUART_HAVE_RTSCTS,
	},
};

static struct mxc_nand_platform_data pcm038_nand_board_info = {
	.width = 1,
	.hw_ecc = 1,
};

static struct platform_device *platform_devices[] __initdata = {
	&pcm038_nor_mtd_device,
	&mxc_w1_master_device,
	&mxc_fec_device,
	&pcm038_sram_mtd_device,
};

/* On pcm038 there's a sram attached to CS1, we enable the chipselect here and
 * setup other stuffs to access the sram. */
static void __init pcm038_init_sram(void)
{
	__raw_writel(0x0000d843, CSCR_U(1));
	__raw_writel(0x22252521, CSCR_L(1));
	__raw_writel(0x22220a00, CSCR_A(1));
}

static struct imxi2c_platform_data pcm038_i2c_1_data = {
	.bitrate = 100000,
};

static struct at24_platform_data board_eeprom = {
	.byte_len = 4096,
	.page_size = 32,
	.flags = AT24_FLAG_ADDR16,
};

static struct i2c_board_info pcm038_i2c_devices[] = {
	{
		I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
		.platform_data = &board_eeprom,
	}, {
		I2C_BOARD_INFO("pcf8563", 0x51),
	}, {
		I2C_BOARD_INFO("lm75", 0x4a),
	}
};

static void __init pcm038_init(void)
{
	mxc_gpio_setup_multiple_pins(pcm038_pins, ARRAY_SIZE(pcm038_pins),
			"PCM038");

	pcm038_init_sram();

	mxc_register_device(&mxc_uart_device0, &uart_pdata[0]);
	mxc_register_device(&mxc_uart_device1, &uart_pdata[1]);
	mxc_register_device(&mxc_uart_device2, &uart_pdata[2]);

	mxc_gpio_mode(PE16_AF_OWIRE);
	mxc_register_device(&mxc_nand_device, &pcm038_nand_board_info);

	/* only the i2c master 1 is used on this CPU card */
	i2c_register_board_info(1, pcm038_i2c_devices,
				ARRAY_SIZE(pcm038_i2c_devices));

	mxc_register_device(&mxc_i2c_device1, &pcm038_i2c_1_data);

	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));

#ifdef CONFIG_MACH_PCM970_BASEBOARD
	pcm970_baseboard_init();
#endif
}

static void __init pcm038_timer_init(void)
{
	mx27_clocks_init(26000000);
}

static struct sys_timer pcm038_timer = {
	.init = pcm038_timer_init,
};

MACHINE_START(PCM038, "phyCORE-i.MX27")
	.phys_io        = AIPI_BASE_ADDR,
	.io_pg_offst    = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
	.boot_params    = PHYS_OFFSET + 0x100,
	.map_io         = mx27_map_io,
	.init_irq       = mx27_init_irq,
	.init_machine   = pcm038_init,
	.timer          = &pcm038_timer,
MACHINE_END