summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-sa1100/jornada720.c
blob: 17f5a43acdb75fcca9dfbfb6807e83a4cb0b712a (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
/*
 * linux/arch/arm/mach-sa1100/jornada720.c
 */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/tty.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/ioport.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>

#include <asm/hardware.h>
#include <asm/hardware/sa1111.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <asm/setup.h>

#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/map.h>
#include <asm/mach/serial_sa1100.h>

#include "generic.h"


#define JORTUCR_VAL	0x20000400

static struct resource sa1111_resources[] = {
	[0] = {
		.start		= 0x40000000,
		.end		= 0x40001fff,
		.flags		= IORESOURCE_MEM,
	},
	[1] = {
		.start		= IRQ_GPIO1,
		.end		= IRQ_GPIO1,
		.flags		= IORESOURCE_IRQ,
	},
};

static u64 sa1111_dmamask = 0xffffffffUL;

static struct platform_device sa1111_device = {
	.name		= "sa1111",
	.id		= 0,
	.dev		= {
		.dma_mask = &sa1111_dmamask,
		.coherent_dma_mask = 0xffffffff,
	},
	.num_resources	= ARRAY_SIZE(sa1111_resources),
	.resource	= sa1111_resources,
};

static struct platform_device *devices[] __initdata = {
	&sa1111_device,
};

static int __init jornada720_init(void)
{
	int ret = -ENODEV;

	if (machine_is_jornada720()) {
		GPDR |= GPIO_GPIO20;
		TUCR = JORTUCR_VAL;	/* set the oscillator out to the SA-1101 */

		GPSR = GPIO_GPIO20;
		udelay(1);
		GPCR = GPIO_GPIO20;
		udelay(1);
		GPSR = GPIO_GPIO20;
		udelay(20);

		/* LDD4 is speaker, LDD3 is microphone */
		PPSR &= ~(PPC_LDD3 | PPC_LDD4);
		PPDR |= PPC_LDD3 | PPC_LDD4;

		ret = platform_add_devices(devices, ARRAY_SIZE(devices));
	}
	return ret;
}

arch_initcall(jornada720_init);

static struct map_desc jornada720_io_desc[] __initdata = {
	{	/* Epson registers */
		.virtual	=  0xf0000000,
		.pfn		= __phys_to_pfn(0x48000000),
		.length		= 0x00100000,
		.type		= MT_DEVICE
	}, {	/* Epson frame buffer */
		.virtual	=  0xf1000000,
		.pfn		= __phys_to_pfn(0x48200000),
		.length		= 0x00100000,
		.type		= MT_DEVICE
	}, {	/* SA-1111 */
		.virtual	=  0xf4000000,
		.pfn		= __phys_to_pfn(0x40000000),
		.length		= 0x00100000,
		.type		= MT_DEVICE
	}
};

static void __init jornada720_map_io(void)
{
	sa1100_map_io();
	iotable_init(jornada720_io_desc, ARRAY_SIZE(jornada720_io_desc));
	
	sa1100_register_uart(0, 3);
	sa1100_register_uart(1, 1);
}

static struct mtd_partition jornada720_partitions[] = {
	{
		.name		= "JORNADA720 boot firmware",
		.size		= 0x00040000,
		.offset		= 0,
		.mask_flags	= MTD_WRITEABLE,  /* force read-only */
	}, {
		.name		= "JORNADA720 kernel",
		.size		= 0x000c0000,
		.offset		= 0x00040000,
	}, {
		.name		= "JORNADA720 params",
		.size		= 0x00040000,
		.offset		= 0x00100000,
	}, {
		.name		= "JORNADA720 initrd",
		.size		= 0x00100000,
		.offset		= 0x00140000,
	}, {
		.name		= "JORNADA720 root cramfs",
		.size		= 0x00300000,
		.offset		= 0x00240000,
	}, {
		.name		= "JORNADA720 usr cramfs",
		.size		= 0x00800000,
		.offset		= 0x00540000,
	}, {
		.name		= "JORNADA720 usr local",
		.size		= 0,  /* will expand to the end of the flash */
		.offset		= 0x00d00000,
	}
};

static void jornada720_set_vpp(int vpp)
{
	if (vpp)
		PPSR |= 0x80;
	else
		PPSR &= ~0x80;
	PPDR |= 0x80;
}

static struct flash_platform_data jornada720_flash_data = {
	.map_name	= "cfi_probe",
	.set_vpp	= jornada720_set_vpp,
	.parts		= jornada720_partitions,
	.nr_parts	= ARRAY_SIZE(jornada720_partitions),
};

static struct resource jornada720_flash_resource = {
	.start		= SA1100_CS0_PHYS,
	.end		= SA1100_CS0_PHYS + SZ_32M - 1,
	.flags		= IORESOURCE_MEM,
};

static void __init jornada720_mach_init(void)
{
	sa11x0_set_flash_data(&jornada720_flash_data, &jornada720_flash_resource, 1);
}

MACHINE_START(JORNADA720, "HP Jornada 720")
	/* Maintainer: Michael Gernoth <michael@gernoth.net> */
	.phys_io	= 0x80000000,
	.io_pg_offst	= ((0xf8000000) >> 18) & 0xfffc,
	.boot_params	= 0xc0000100,
	.map_io		= jornada720_map_io,
	.init_irq	= sa1100_init_irq,
	.timer		= &sa1100_timer,
	.init_machine	= jornada720_mach_init,
MACHINE_END
OpenPOWER on IntegriCloud