summaryrefslogtreecommitdiffstats
path: root/board/imx21ads/imx21ads.c
blob: 9eba19afbd6a9a48b6f556e5525772f38691f2df (plain)
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
/*
 * Copyright (C) 2009 Ivo Clarysse
 * 
 * Based on imx27ads.c,
 *   Copyright (C) 2007 Sascha Hauer, Pengutronix 
 *
 * 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 <common.h>
#include <net.h>
#include <init.h>
#include <environment.h>
#include <mach/imx-regs.h>
#include <asm/armlinux.h>
#include <asm/io.h>
#include <mach/gpio.h>
#include <partition.h>
#include <fs.h>
#include <fcntl.h>
#include <asm/mach-types.h>
#include <mach/imx-nand.h>
#include <mach/imxfb.h>

#define MX21ADS_IO_REG    0xCC800000
#define MX21ADS_IO_LCDON  (1 << 9)

static struct device_d cfi_dev = {
	.name     = "cfi_flash",
	.map_base = 0xC8000000,
	.size     = 32 * 1024 * 1024,
};

static struct memory_platform_data ram_pdata = {
	.name = "ram0",
	.flags = DEVFS_RDWR,
};

static struct device_d sdram_dev = {
	.name     = "mem",
	.map_base = 0xc0000000,
	.size     = 64 * 1024 * 1024,
	.platform_data = &ram_pdata,
};

struct imx_nand_platform_data nand_info = {
	.width = 1,
	.hw_ecc = 1,
};

static struct device_d nand_dev = {
	.name     = "imx_nand",
	.map_base = 0xDF003000,
	.platform_data  = &nand_info,
};

static struct device_d cs8900_dev = {
	.name     = "cs8900",
	.map_base = IMX_CS1_BASE,
	// IRQ is connected to UART3_RTS
};

/* Sharp LQ035Q7DB02 QVGA display */
static struct imx_fb_videomode imx_fb_modedata = {
        .mode = {
		.name           = "Sharp-LQ035Q7",
		.refresh        = 60,
		.xres           = 240,
		.yres           = 320,
		.pixclock       = 188679,
		.left_margin    = 6,
		.right_margin   = 16,
		.upper_margin   = 8,
		.lower_margin   = 10,
		.hsync_len      = 2,
		.vsync_len      = 1,
		.sync           = 0,
		.vmode          = FB_VMODE_NONINTERLACED,
		.flag           = 0,
	},
        .pcr            = 0xfb108bc7,
        .bpp            = 16,
};

static struct imx_fb_platform_data imx_fb_data = {
	.mode           = &imx_fb_modedata,
	.cmap_greyscale = 0,
	.cmap_inverse   = 0,
	.cmap_static    = 0,
	.pwmr           = 0x00a903ff,
	.lscr1          = 0x00120300,
	.dmacr          = 0x00020008,
};

static struct device_d imxfb_dev = {
	.name           = "imxfb",
	.map_base       = 0x10021000,
	.size           = 0x1000,
	.platform_data  = &imx_fb_data,
};

static int imx21ads_timing_init(void)
{
	u32 temp;

	/* Configure External Interface Module */
	/* CS0: burst flash */
	CS0U = 0x00003E00;
	CS0L = 0x00000E01;

	/* CS1: Ethernet controller, external UART, memory-mapped I/O (16-bit) */
	CS1U = 0x00002000;
	CS1L = 0x11118501;

	/* CS2: disable (not available, since CSD0 in use) */
	CS2U = 0x0;
	CS2L = 0x0;

	/* CS3: disable */
	CS3U = 0x0;
	CS3L = 0x0;
	/* CS4: disable */
	CS4U = 0x0;
	CS4L = 0x0;
	/* CS5: disable */
	CS5U = 0x0;
	CS5L = 0x0;

	temp = PCDR0;
	temp &= ~0xF000;
	temp |= 0xA000;  /* Set NFC divider; 0xA yields 24.18MHz */
	PCDR0 = temp;

	return 0;
}

core_initcall(imx21ads_timing_init);

static int mx21ads_devices_init(void)
{
	int i;
	unsigned int mode[] = {
		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,
		PA23_PF_LD17,
		PA24_PF_REV,
		PA25_PF_CLS,
		PA26_PF_PS,
		PA27_PF_SPL_SPR,
		PA28_PF_HSYNC,
		PA29_PF_VSYNC,
		PA30_PF_CONTRAST,
		PA31_PF_OE_ACD,
		PE12_PF_UART1_TXD,
		PE13_PF_UART1_RXD,
		PE14_PF_UART1_CTS,
		PE15_PF_UART1_RTS,
	};

	/* initizalize gpios */
	for (i = 0; i < ARRAY_SIZE(mode); i++)
		imx_gpio_mode(mode[i]);

	register_device(&cfi_dev);
	register_device(&sdram_dev);
	register_device(&nand_dev);
	register_device(&cs8900_dev);
	register_device(&imxfb_dev);

	armlinux_add_dram(&sdram_dev);
	armlinux_set_bootparams((void *)0xc0000100);
	armlinux_set_architecture(MACH_TYPE_MX21ADS);

	return 0;
}

device_initcall(mx21ads_devices_init);

static int mx21ads_enable_display(void)
{
	u16 tmp;

	tmp = readw(MX21ADS_IO_REG);
	tmp |= MX21ADS_IO_LCDON;
	writew(tmp, MX21ADS_IO_REG);
	return 0;
}

late_initcall(mx21ads_enable_display);

static struct device_d mx21ads_serial_device = {
	.name     = "imx_serial",
	.map_base = IMX_UART1_BASE,
	.size     = 4096,
};

static int mx21ads_console_init(void)
{
	register_device(&mx21ads_serial_device);
	return 0;
}

console_initcall(mx21ads_console_init);

#ifdef CONFIG_NAND_IMX_BOOT
void __bare_init nand_boot(void)
{
	PCCR0 |= PCCR0_NFC_EN;
	imx_nand_load_image((void *)TEXT_BASE, 256 * 1024);
}
#endif