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
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
|
/*
* Copyright (C) 2000 Deep Blue Solutions Ltd
* Copyright (C) 2002 Shane Nay (shane@minirl.com)
* Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/physmap.h>
#include <linux/gpio.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include <mach/imx-uart.h>
#include <mach/imxfb.h>
#include <mach/iomux-mx21.h>
#include <mach/mxc_nand.h>
#include <mach/mmc.h>
#include <mach/board-mx21ads.h>
#include "devices.h"
static unsigned int mx21ads_pins[] = {
/* CS8900A */
(GPIO_PORTE | GPIO_GPIO | GPIO_IN | 11),
/* UART1 */
PE12_PF_UART1_TXD,
PE13_PF_UART1_RXD,
PE14_PF_UART1_CTS,
PE15_PF_UART1_RTS,
/* UART3 (IrDA) - only TXD and RXD */
PE8_PF_UART3_TXD,
PE9_PF_UART3_RXD,
/* UART4 */
PB26_AF_UART4_RTS,
PB28_AF_UART4_TXD,
PB29_AF_UART4_CTS,
PB31_AF_UART4_RXD,
/* LCDC */
PA5_PF_LSCLK,
PA6_PF_LD0,
PA7_PF_LD1,
PA8_PF_LD2,
PA9_PF_LD3,
PA10_PF_LD4,
PA11_PF_LD5,
PA12_PF_LD6,
PA13_PF_LD7,
PA14_PF_LD8,
PA15_PF_LD9,
PA16_PF_LD10,
PA17_PF_LD11,
PA18_PF_LD12,
PA19_PF_LD13,
PA20_PF_LD14,
PA21_PF_LD15,
PA22_PF_LD16,
PA24_PF_REV, /* Sharp panel dedicated signal */
PA25_PF_CLS, /* Sharp panel dedicated signal */
PA26_PF_PS, /* Sharp panel dedicated signal */
PA27_PF_SPL_SPR, /* Sharp panel dedicated signal */
PA28_PF_HSYNC,
PA29_PF_VSYNC,
PA30_PF_CONTRAST,
PA31_PF_OE_ACD,
/* MMC/SDHC */
PE18_PF_SD1_D0,
PE19_PF_SD1_D1,
PE20_PF_SD1_D2,
PE21_PF_SD1_D3,
PE22_PF_SD1_CMD,
PE23_PF_SD1_CLK,
/* NFC */
PF0_PF_NRFB,
PF1_PF_NFCE,
PF2_PF_NFWP,
PF3_PF_NFCLE,
PF4_PF_NFALE,
PF5_PF_NFRE,
PF6_PF_NFWE,
PF7_PF_NFIO0,
PF8_PF_NFIO1,
PF9_PF_NFIO2,
PF10_PF_NFIO3,
PF11_PF_NFIO4,
PF12_PF_NFIO5,
PF13_PF_NFIO6,
PF14_PF_NFIO7,
};
/* ADS's NOR flash: 2x AM29BDS128HE9VKI on 32-bit bus */
static struct physmap_flash_data mx21ads_flash_data = {
.width = 4,
};
static struct resource mx21ads_flash_resource = {
.start = MX21_CS0_BASE_ADDR,
.end = MX21_CS0_BASE_ADDR + 0x02000000 - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device mx21ads_nor_mtd_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &mx21ads_flash_data,
},
.num_resources = 1,
.resource = &mx21ads_flash_resource,
};
static struct imxuart_platform_data uart_pdata = {
.flags = IMXUART_HAVE_RTSCTS,
};
static struct imxuart_platform_data uart_norts_pdata = {
};
static int mx21ads_fb_init(struct platform_device *pdev)
{
u16 tmp;
tmp = __raw_readw(MX21ADS_IO_REG);
tmp |= MX21ADS_IO_LCDON;
__raw_writew(tmp, MX21ADS_IO_REG);
return 0;
}
static void mx21ads_fb_exit(struct platform_device *pdev)
{
u16 tmp;
tmp = __raw_readw(MX21ADS_IO_REG);
tmp &= ~MX21ADS_IO_LCDON;
__raw_writew(tmp, MX21ADS_IO_REG);
}
/*
* Connected is a portrait Sharp-QVGA display
* of type: LQ035Q7DB02
*/
static struct imx_fb_videomode mx21ads_modes[] = {
{
.mode = {
.name = "Sharp-LQ035Q7",
.refresh = 60,
.xres = 240,
.yres = 320,
.pixclock = 188679, /* in ps (5.3MHz) */
.hsync_len = 2,
.left_margin = 6,
.right_margin = 16,
.vsync_len = 1,
.upper_margin = 8,
.lower_margin = 10,
},
.pcr = 0xfb108bc7,
.bpp = 16,
},
};
static struct imx_fb_platform_data mx21ads_fb_data = {
.mode = mx21ads_modes,
.num_modes = ARRAY_SIZE(mx21ads_modes),
.pwmr = 0x00a903ff,
.lscr1 = 0x00120300,
.dmacr = 0x00020008,
.init = mx21ads_fb_init,
.exit = mx21ads_fb_exit,
};
static int mx21ads_sdhc_get_ro(struct device *dev)
{
return (__raw_readw(MX21ADS_IO_REG) & MX21ADS_IO_SD_WP) ? 1 : 0;
}
static int mx21ads_sdhc_init(struct device *dev, irq_handler_t detect_irq,
void *data)
{
int ret;
ret = request_irq(IRQ_GPIOD(25), detect_irq,
IRQF_TRIGGER_FALLING, "mmc-detect", data);
if (ret)
goto out;
return 0;
out:
return ret;
}
static void mx21ads_sdhc_exit(struct device *dev, void *data)
{
free_irq(IRQ_GPIOD(25), data);
}
static struct imxmmc_platform_data mx21ads_sdhc_pdata = {
.ocr_avail = MMC_VDD_29_30 | MMC_VDD_30_31, /* 3.0V */
.get_ro = mx21ads_sdhc_get_ro,
.init = mx21ads_sdhc_init,
.exit = mx21ads_sdhc_exit,
};
static struct mxc_nand_platform_data mx21ads_nand_board_info = {
.width = 1,
.hw_ecc = 1,
};
static struct map_desc mx21ads_io_desc[] __initdata = {
/*
* Memory-mapped I/O on MX21ADS Base board:
* - CS8900A Ethernet controller
* - ST16C2552CJ UART
* - CPU and Base board version
* - Base board I/O register
*/
{
.virtual = MX21ADS_MMIO_BASE_ADDR,
.pfn = __phys_to_pfn(MX21_CS1_BASE_ADDR),
.length = MX21ADS_MMIO_SIZE,
.type = MT_DEVICE,
},
};
static void __init mx21ads_map_io(void)
{
mx21_map_io();
iotable_init(mx21ads_io_desc, ARRAY_SIZE(mx21ads_io_desc));
}
static struct platform_device *platform_devices[] __initdata = {
&mx21ads_nor_mtd_device,
};
static void __init mx21ads_board_init(void)
{
mxc_gpio_setup_multiple_pins(mx21ads_pins, ARRAY_SIZE(mx21ads_pins),
"mx21ads");
mxc_register_device(&mxc_uart_device0, &uart_pdata);
mxc_register_device(&mxc_uart_device2, &uart_norts_pdata);
mxc_register_device(&mxc_uart_device3, &uart_pdata);
mxc_register_device(&mxc_fb_device, &mx21ads_fb_data);
mxc_register_device(&mxc_sdhc_device0, &mx21ads_sdhc_pdata);
mxc_register_device(&imx21_nand_device, &mx21ads_nand_board_info);
platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
}
static void __init mx21ads_timer_init(void)
{
mx21_clocks_init(32768, 26000000);
}
static struct sys_timer mx21ads_timer = {
.init = mx21ads_timer_init,
};
MACHINE_START(MX21ADS, "Freescale i.MX21ADS")
/* maintainer: Freescale Semiconductor, Inc. */
.phys_io = MX21_AIPI_BASE_ADDR,
.io_pg_offst = ((MX21_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
.boot_params = MX21_PHYS_OFFSET + 0x100,
.map_io = mx21ads_map_io,
.init_irq = mx21_init_irq,
.init_machine = mx21ads_board_init,
.timer = &mx21ads_timer,
MACHINE_END
|
