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 <asm/mach-types.h>
23 #include <asm/mach/arch.h>
24
25 #include "pxa25x.h"
26 #include "generic.h"
27
isp116x_pfm_delay(struct device * dev,int delay)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
mp900c_init(void)84 static void __init mp900c_init(void)
85 {
86 printk(KERN_INFO "MobilePro 900/C machine init\n");
87 pxa_set_ffuart_info(NULL);
88 pxa_set_btuart_info(NULL);
89 pxa_set_stuart_info(NULL);
90 platform_add_devices(devices, ARRAY_SIZE(devices));
91 }
92
93 /* Maintainer - Michael Petchkovsky <mkpetch@internode.on.net> */
94 MACHINE_START(NEC_MP900, "MobilePro900/C")
95 .atag_offset = 0x220100,
96 .init_time = pxa_timer_init,
97 .map_io = pxa25x_map_io,
98 .nr_irqs = PXA_NR_IRQS,
99 .init_irq = pxa25x_init_irq,
100 .handle_irq = pxa25x_handle_irq,
101 .init_machine = mp900c_init,
102 .restart = pxa_restart,
103 MACHINE_END
104
105
