e4f4c52d93d44a4606f4bdb8ba36d91b5355b4f6
[linux-3.10.git] / arch / arm / mach-iop3xx / iop321-setup.c
1 /*
2  * linux/arch/arm/mach-iop3xx/iop321-setup.c
3  *
4  * Author: Nicolas Pitre <nico@cam.org>
5  * Copyright (C) 2001 MontaVista Software, Inc.
6  * Copyright (C) 2004 Intel Corporation.
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License version 2 as
10  * published by the Free Software Foundation.
11  *
12  */
13 #include <linux/mm.h>
14 #include <linux/init.h>
15 #include <linux/config.h>
16 #include <linux/init.h>
17 #include <linux/major.h>
18 #include <linux/fs.h>
19 #include <linux/platform_device.h>
20 #include <linux/serial.h>
21 #include <linux/tty.h>
22 #include <linux/serial_core.h>
23
24 #include <asm/io.h>
25 #include <asm/pgtable.h>
26 #include <asm/page.h>
27 #include <asm/mach/map.h>
28 #include <asm/setup.h>
29 #include <asm/system.h>
30 #include <asm/memory.h>
31 #include <asm/hardware.h>
32 #include <asm/mach-types.h>
33 #include <asm/mach/arch.h>
34
35 #define IOP321_UART_XTAL 1843200
36
37 /*
38  * Standard IO mapping for all IOP321 based systems
39  */
40 static struct map_desc iop321_std_desc[] __initdata = {
41          {      /* mem mapped registers */
42                 .virtual        = IOP321_VIRT_MEM_BASE,
43                 .pfn            = __phys_to_pfn(IOP321_PHYS_MEM_BASE),
44                 .length         = 0x00002000,
45                 .type           = MT_DEVICE
46          }, {   /* PCI IO space */
47                 .virtual        = IOP321_PCI_LOWER_IO_VA,
48                 .pfn            = __phys_to_pfn(IOP321_PCI_LOWER_IO_PA),
49                 .length         = IOP321_PCI_IO_WINDOW_SIZE,
50                 .type           = MT_DEVICE
51          }
52 };
53
54 #ifdef CONFIG_ARCH_IQ80321
55 #define UARTBASE IQ80321_UART
56 #define IRQ_UART IRQ_IQ80321_UART
57 #endif
58
59 #ifdef CONFIG_ARCH_IQ31244
60 #define UARTBASE IQ31244_UART
61 #define IRQ_UART IRQ_IQ31244_UART
62 #endif
63
64 static struct uart_port iop321_serial_ports[] = {
65         {
66                 .membase        = (char*)(UARTBASE),
67                 .mapbase        = (UARTBASE),
68                 .irq            = IRQ_UART,
69                 .flags          = UPF_SKIP_TEST,
70                 .iotype         = UPIO_MEM,
71                 .regshift       = 0,
72                 .uartclk        = IOP321_UART_XTAL,
73                 .line           = 0,
74                 .type           = PORT_16550A,
75                 .fifosize       = 16
76         }
77 };
78
79 static struct resource iop32x_i2c_0_resources[] = {
80         [0] = {
81                 .start = 0xfffff680,
82                 .end = 0xfffff698,
83                 .flags = IORESOURCE_MEM,
84         },
85         [1] = {
86                 .start = IRQ_IOP321_I2C_0,
87                 .end = IRQ_IOP321_I2C_0,
88                 .flags = IORESOURCE_IRQ
89         }
90 };
91
92 static struct resource iop32x_i2c_1_resources[] = {
93         [0] = {
94                 .start = 0xfffff6a0,
95                 .end = 0xfffff6b8,
96                 .flags = IORESOURCE_MEM,
97         },
98         [1] = {
99                 .start = IRQ_IOP321_I2C_1,
100                 .end = IRQ_IOP321_I2C_1,
101                 .flags = IORESOURCE_IRQ
102         }
103 };
104
105 static struct platform_device iop32x_i2c_0_controller = {
106         .name = "IOP3xx-I2C",
107         .id = 0,
108         .num_resources = 2,
109         .resource = iop32x_i2c_0_resources
110 };
111
112 static struct platform_device iop32x_i2c_1_controller = {
113         .name = "IOP3xx-I2C",
114         .id = 1,
115         .num_resources = 2,
116         .resource = iop32x_i2c_1_resources
117 };
118
119 static struct platform_device *iop32x_devices[] __initdata = {
120         &iop32x_i2c_0_controller,
121         &iop32x_i2c_1_controller
122 };
123
124 void __init iop32x_init(void)
125 {
126         if(iop_is_321())
127         {
128                 platform_add_devices(iop32x_devices,
129                                 ARRAY_SIZE(iop32x_devices));
130         }
131 }
132
133 void __init iop321_map_io(void)
134 {
135         iotable_init(iop321_std_desc, ARRAY_SIZE(iop321_std_desc));
136         early_serial_setup(&iop321_serial_ports[0]);
137 }
138
139 #ifdef CONFIG_ARCH_IQ80321
140 extern void iq80321_map_io(void);
141 extern struct sys_timer iop321_timer;
142 extern void iop321_init_time(void);
143 #endif
144
145 #ifdef CONFIG_ARCH_IQ31244
146 extern void iq31244_map_io(void);
147 extern struct sys_timer iop321_timer;
148 extern void iop321_init_time(void);
149 #endif
150
151 #if defined(CONFIG_ARCH_IQ80321)
152 MACHINE_START(IQ80321, "Intel IQ80321")
153         /* Maintainer: Intel Corporation */
154         .phys_io        = IQ80321_UART,
155         .io_pg_offst    = ((IQ80321_UART) >> 18) & 0xfffc,
156         .map_io         = iq80321_map_io,
157         .init_irq       = iop321_init_irq,
158         .timer          = &iop321_timer,
159         .boot_params    = 0xa0000100,
160         .init_machine   = iop32x_init,
161 MACHINE_END
162 #elif defined(CONFIG_ARCH_IQ31244)
163 MACHINE_START(IQ31244, "Intel IQ31244")
164         /* Maintainer: Intel Corp. */
165         .phys_io        = IQ31244_UART,
166         .io_pg_offst    = ((IQ31244_UART) >> 18) & 0xfffc,
167         .map_io         = iq31244_map_io,
168         .init_irq       = iop321_init_irq,
169         .timer          = &iop321_timer,
170         .boot_params    = 0xa0000100,
171         .init_machine   = iop32x_init,
172 MACHINE_END
173 #else
174 #error No machine descriptor defined for this IOP3XX implementation
175 #endif