[ARM] 5277/1: Add basic support for MobilePro 900/c
[linux-2.6.git] / arch / arm / mach-pxa / mp900.c
1 /*
2  *  linux/arch/arm/mach-pxa/mp900.c
3  *
4  *  Support for the NEC MobilePro900/C platform
5  *
6  *  Based on mach-pxa/gumstix.c
7  *
8  *  2007, 2008 Kristoffer Ericson <kristoffer.ericson@gmail.com>
9  *  2007, 2008 Michael Petchkovsky <mkpetch@internode.on.net>
10  *
11  *  This program is free software; you can redistribute it and/or modify
12  *  it under the terms of the GNU General Public License version 2 as
13  *  published by the Free Software Foundation.
14  */
15
16 #include <linux/init.h>
17 #include <linux/device.h>
18 #include <linux/platform_device.h>
19 #include <linux/types.h>
20 #include <linux/usb/isp116x.h>
21
22 #include <mach/hardware.h>
23 #include <mach/pxa-regs.h>
24 #include <asm/mach-types.h>
25 #include <asm/mach/arch.h>
26 #include "generic.h"
27
28 static void isp116x_pfm_delay(struct device *dev, int delay)
29 {
30
31         /* 400Mhz PXA2 = 2.5ns / instruction */
32
33         int cyc = delay / 10;
34
35         /* 4 Instructions = 4 x 2.5ns = 10ns */
36         __asm__ volatile ("0:\n"
37                 "subs %0, %1, #1\n"
38                 "bge 0b\n"
39                 :"=r" (cyc)
40                 :"0"(cyc)
41         );
42 }
43
44 static struct isp116x_platform_data isp116x_pfm_data = {
45         .remote_wakeup_enable = 1,
46         .delay = isp116x_pfm_delay,
47 };
48
49 static struct resource isp116x_pfm_resources[] = {
50         [0] =   {
51                 .start  = 0x0d000000,
52                 .end    = 0x0d000000 + 1,
53                 .flags  = IORESOURCE_MEM,
54                 },
55         [1] =   {
56                 .start  = 0x0d000000 + 4,
57                 .end    = 0x0d000000 + 5,
58                 .flags  = IORESOURCE_MEM,
59                 },
60         [2] =   {
61                 .start  = 61,
62                 .end    = 61,
63                 .flags  = IORESOURCE_IRQ,
64                 },
65 };
66
67 static struct platform_device mp900c_dummy_device = {
68         .name           = "mp900c_dummy",
69         .id             = -1,
70 };
71
72 static struct platform_device mp900c_usb = {
73         .name           = "isp116x-hcd",
74         .num_resources  = ARRAY_SIZE(isp116x_pfm_resources),
75         .resource       = isp116x_pfm_resources,
76         .dev.platform_data = &isp116x_pfm_data,
77 };
78
79 static struct platform_device *devices[] __initdata = {
80         &mp900c_dummy_device,
81         &mp900c_usb,
82 };
83
84 static void __init mp900c_init(void)
85 {
86         printk(KERN_INFO "MobilePro 900/C machine init\n");
87         platform_add_devices(devices, ARRAY_SIZE(devices));
88 }
89
90 /* Maintainer - Michael Petchkovsky <mkpetch@internode.on.net> */
91 MACHINE_START(NEC_MP900, "MobilePro900/C")
92         .phys_io        = 0x40000000,
93         .boot_params    = 0xa0220100,
94         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
95         .timer          = &pxa_timer,
96         .map_io         = pxa_map_io,
97         .init_irq       = pxa25x_init_irq,
98         .init_machine   = mp900c_init,
99 MACHINE_END
100