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
|
/*
* linux/arch/arm/mach-clps711x/p720t.c
*
* Copyright (C) 2000-2001 Deep Blue Solutions Ltd
*
* 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/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/leds.h>
#include <linux/sizes.h>
#include <linux/backlight.h>
#include <linux/platform_device.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/nand-gpio.h>
#include <mach/hardware.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/syspld.h>
#include <video/platform_lcd.h>
#include "common.h"
#define P720T_USERLED CLPS711X_GPIO(3, 0)
#define P720T_NAND_CLE CLPS711X_GPIO(4, 0)
#define P720T_NAND_ALE CLPS711X_GPIO(4, 1)
#define P720T_NAND_NCE CLPS711X_GPIO(4, 2)
#define P720T_NAND_BASE (CLPS711X_SDRAM1_BASE)
static struct resource p720t_nand_resource[] __initdata = {
DEFINE_RES_MEM(P720T_NAND_BASE, SZ_4),
};
static struct mtd_partition p720t_nand_parts[] __initdata = {
{
.name = "Flash partition 1",
.offset = 0,
.size = SZ_2M,
},
{
.name = "Flash partition 2",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
static struct gpio_nand_platdata p720t_nand_pdata __initdata = {
.gpio_rdy = -1,
.gpio_nce = P720T_NAND_NCE,
.gpio_ale = P720T_NAND_ALE,
.gpio_cle = P720T_NAND_CLE,
.gpio_nwp = -1,
.chip_delay = 15,
.parts = p720t_nand_parts,
.num_parts = ARRAY_SIZE(p720t_nand_parts),
};
static struct platform_device p720t_nand_pdev __initdata = {
.name = "gpio-nand",
.id = -1,
.resource = p720t_nand_resource,
.num_resources = ARRAY_SIZE(p720t_nand_resource),
.dev = {
.platform_data = &p720t_nand_pdata,
},
};
static void p720t_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
{
if (power) {
PLD_LCDEN = PLD_LCDEN_EN;
PLD_PWR |= PLD_S4_ON | PLD_S2_ON | PLD_S1_ON;
} else {
PLD_PWR &= ~(PLD_S4_ON | PLD_S2_ON | PLD_S1_ON);
PLD_LCDEN = 0;
}
}
static struct plat_lcd_data p720t_lcd_power_pdata = {
.set_power = p720t_lcd_power_set,
};
static void p720t_lcd_backlight_set_intensity(int intensity)
{
if (intensity)
PLD_PWR |= PLD_S3_ON;
else
PLD_PWR = 0;
}
static struct generic_bl_info p720t_lcd_backlight_pdata = {
.name = "lcd-backlight.0",
.default_intensity = 0x01,
.max_intensity = 0x01,
.set_bl_intensity = p720t_lcd_backlight_set_intensity,
};
/*
* Map the P720T system PLD. It occupies two address spaces:
* 0x10000000 and 0x10400000. We map both regions as one.
*/
static struct map_desc p720t_io_desc[] __initdata = {
{
.virtual = SYSPLD_VIRT_BASE,
.pfn = __phys_to_pfn(SYSPLD_PHYS_BASE),
.length = SZ_8M,
.type = MT_DEVICE,
},
};
static void __init
fixup_p720t(struct tag *tag, char **cmdline, struct meminfo *mi)
{
/*
* Our bootloader doesn't setup any tags (yet).
*/
if (tag->hdr.tag != ATAG_CORE) {
tag->hdr.tag = ATAG_CORE;
tag->hdr.size = tag_size(tag_core);
tag->u.core.flags = 0;
tag->u.core.pagesize = PAGE_SIZE;
tag->u.core.rootdev = 0x0100;
tag = tag_next(tag);
tag->hdr.tag = ATAG_MEM;
tag->hdr.size = tag_size(tag_mem32);
tag->u.mem.size = 4096;
tag->u.mem.start = PHYS_OFFSET;
tag = tag_next(tag);
tag->hdr.tag = ATAG_NONE;
tag->hdr.size = 0;
}
}
static void __init p720t_map_io(void)
{
clps711x_map_io();
iotable_init(p720t_io_desc, ARRAY_SIZE(p720t_io_desc));
}
static void __init p720t_init_early(void)
{
/*
* Power down as much as possible in case we don't
* have the drivers loaded.
*/
PLD_LCDEN = 0;
PLD_PWR &= ~(PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON);
PLD_KBD = 0;
PLD_IO = 0;
PLD_IRDA = 0;
PLD_CODEC = 0;
PLD_TCH = 0;
PLD_SPI = 0;
if (!IS_ENABLED(CONFIG_DEBUG_LL)) {
PLD_COM2 = 0;
PLD_COM1 = 0;
}
}
static struct gpio_led p720t_gpio_leds[] = {
{
.name = "User LED",
.default_trigger = "heartbeat",
.gpio = P720T_USERLED,
},
};
static struct gpio_led_platform_data p720t_gpio_led_pdata __initdata = {
.leds = p720t_gpio_leds,
.num_leds = ARRAY_SIZE(p720t_gpio_leds),
};
static void __init p720t_init(void)
{
platform_device_register(&p720t_nand_pdev);
platform_device_register_data(&platform_bus, "platform-lcd", 0,
&p720t_lcd_power_pdata,
sizeof(p720t_lcd_power_pdata));
platform_device_register_data(&platform_bus, "generic-bl", 0,
&p720t_lcd_backlight_pdata,
sizeof(p720t_lcd_backlight_pdata));
platform_device_register_simple("video-clps711x", 0, NULL, 0);
}
static void __init p720t_init_late(void)
{
platform_device_register_data(&platform_bus, "leds-gpio", 0,
&p720t_gpio_led_pdata,
sizeof(p720t_gpio_led_pdata));
}
MACHINE_START(P720T, "ARM-Prospector720T")
/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
.atag_offset = 0x100,
.nr_irqs = CLPS711X_NR_IRQS,
.fixup = fixup_p720t,
.map_io = p720t_map_io,
.init_early = p720t_init_early,
.init_irq = clps711x_init_irq,
.init_time = clps711x_timer_init,
.init_machine = p720t_init,
.init_late = p720t_init_late,
.handle_irq = clps711x_handle_irq,
.restart = clps711x_restart,
MACHINE_END
|
