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
|
/*
* linux/arch/arm/mach-sa1100/simpad.c
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/tty.h>
#include <linux/proc_fs.h>
#include <linux/string.h>
#include <linux/pm.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/io.h>
#include <asm/irq.h>
#include <mach/hardware.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/map.h>
#include <asm/mach/serial_sa1100.h>
#include <mach/mcp.h>
#include <mach/simpad.h>
#include <linux/serial_core.h>
#include <linux/ioport.h>
#include "generic.h"
long cs3_shadow;
long get_cs3_shadow(void)
{
return cs3_shadow;
}
void set_cs3(long value)
{
*(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow = value;
}
void set_cs3_bit(int value)
{
cs3_shadow |= value;
*(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow;
}
void clear_cs3_bit(int value)
{
cs3_shadow &= ~value;
*(CS3BUSTYPE *)(CS3_BASE) = cs3_shadow;
}
EXPORT_SYMBOL(set_cs3_bit);
EXPORT_SYMBOL(clear_cs3_bit);
static struct map_desc simpad_io_desc[] __initdata = {
{ /* MQ200 */
.virtual = 0xf2800000,
.pfn = __phys_to_pfn(0x4b800000),
.length = 0x00800000,
.type = MT_DEVICE
}, { /* Paules CS3, write only */
.virtual = 0xf1000000,
.pfn = __phys_to_pfn(0x18000000),
.length = 0x00100000,
.type = MT_DEVICE
},
};
static void simpad_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
{
if (port->mapbase == (u_int)&Ser1UTCR0) {
if (state)
{
clear_cs3_bit(RS232_ON);
clear_cs3_bit(DECT_POWER_ON);
}else
{
set_cs3_bit(RS232_ON);
set_cs3_bit(DECT_POWER_ON);
}
}
}
static struct sa1100_port_fns simpad_port_fns __initdata = {
.pm = simpad_uart_pm,
};
static struct mtd_partition simpad_partitions[] = {
{
.name = "SIMpad boot firmware",
.size = 0x00080000,
.offset = 0,
.mask_flags = MTD_WRITEABLE,
}, {
.name = "SIMpad kernel",
.size = 0x0010000,
.offset = MTDPART_OFS_APPEND,
}, {
.name = "SIMpad root jffs2",
.size = MTDPART_SIZ_FULL,
.offset = MTDPART_OFS_APPEND,
}
};
static struct flash_platform_data simpad_flash_data = {
.map_name = "cfi_probe",
.parts = simpad_partitions,
.nr_parts = ARRAY_SIZE(simpad_partitions),
};
static struct resource simpad_flash_resources [] = {
{
.start = SA1100_CS0_PHYS,
.end = SA1100_CS0_PHYS + SZ_16M -1,
.flags = IORESOURCE_MEM,
}, {
.start = SA1100_CS1_PHYS,
.end = SA1100_CS1_PHYS + SZ_16M -1,
.flags = IORESOURCE_MEM,
}
};
static struct mcp_plat_data simpad_mcp_data = {
.mccr0 = MCCR0_ADM,
.sclk_rate = 11981000,
};
static void __init simpad_map_io(void)
{
sa1100_map_io();
iotable_init(simpad_io_desc, ARRAY_SIZE(simpad_io_desc));
set_cs3_bit (EN1 | EN0 | LED2_ON | DISPLAY_ON | RS232_ON |
ENABLE_5V | RESET_SIMCARD | DECT_POWER_ON);
sa1100_register_uart_fns(&simpad_port_fns);
sa1100_register_uart(0, 3); /* serial interface */
sa1100_register_uart(1, 1); /* DECT */
// Reassign UART 1 pins
GAFR |= GPIO_UART_TXD | GPIO_UART_RXD;
GPDR |= GPIO_UART_TXD | GPIO_LDD13 | GPIO_LDD15;
GPDR &= ~GPIO_UART_RXD;
PPAR |= PPAR_UPR;
/*
* Set up registers for sleep mode.
*/
PWER = PWER_GPIO0| PWER_RTC;
PGSR = 0x818;
PCFR = 0;
PSDR = 0;
sa11x0_register_mtd(&simpad_flash_data, simpad_flash_resources,
ARRAY_SIZE(simpad_flash_resources));
sa11x0_register_mcp(&simpad_mcp_data);
}
static void simpad_power_off(void)
{
local_irq_disable(); // was cli
set_cs3(0x800); /* only SD_MEDIAQ */
/* disable internal oscillator, float CS lines */
PCFR = (PCFR_OPDE | PCFR_FP | PCFR_FS);
/* enable wake-up on GPIO0 (Assabet...) */
PWER = GFER = GRER = 1;
/*
* set scratchpad to zero, just in case it is used as a
* restart address by the bootloader.
*/
PSPR = 0;
PGSR = 0;
/* enter sleep mode */
PMCR = PMCR_SF;
while(1);
local_irq_enable(); /* we won't ever call it */
}
/*
* MediaQ Video Device
*/
static struct platform_device simpad_mq200fb = {
.name = "simpad-mq200",
.id = 0,
};
static struct platform_device *devices[] __initdata = {
&simpad_mq200fb
};
static int __init simpad_init(void)
{
int ret;
pm_power_off = simpad_power_off;
ret = platform_add_devices(devices, ARRAY_SIZE(devices));
if(ret)
printk(KERN_WARNING "simpad: Unable to register mq200 framebuffer device");
return 0;
}
arch_initcall(simpad_init);
MACHINE_START(SIMPAD, "Simpad")
/* Maintainer: Holger Freyther */
.phys_io = 0x80000000,
.io_pg_offst = ((0xf8000000) >> 18) & 0xfffc,
.boot_params = 0xc0000100,
.map_io = simpad_map_io,
.init_irq = sa1100_init_irq,
.timer = &sa1100_timer,
MACHINE_END
|
