ARM vt8500: Move vt8500 pwm driver to pwm framework
[linux-3.10.git] / arch / arm / mach-vt8500 / wm8505_7in.c
1 /*
2  *  arch/arm/mach-vt8500/wm8505_7in.c
3  *
4  *  Copyright (C) 2010 Alexey Charkov <alchark@gmail.com>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  */
20
21 #include <linux/io.h>
22 #include <linux/pm.h>
23
24 #include <asm/mach-types.h>
25 #include <asm/mach/arch.h>
26
27 #include "devices.h"
28
29 static void __iomem *pmc_hiber;
30
31 static struct platform_device *devices[] __initdata = {
32         &vt8500_device_uart0,
33         &vt8500_device_ehci,
34         &vt8500_device_wm8505_fb,
35         &vt8500_device_ge_rops,
36         &vt8500_device_pwm,
37         &vt8500_device_pwmbl,
38         &vt8500_device_rtc,
39 };
40
41 static void vt8500_power_off(void)
42 {
43         local_irq_disable();
44         writew(5, pmc_hiber);
45         asm("mcr%? p15, 0, %0, c7, c0, 4" : : "r" (0));
46 }
47
48 void __init wm8505_7in_init(void)
49 {
50 #ifdef CONFIG_FB_WM8505
51         void __iomem *gpio_mux_reg = ioremap(wmt_gpio_base + 0x200, 4);
52         if (gpio_mux_reg) {
53                 writel(readl(gpio_mux_reg) | 0x80000000, gpio_mux_reg);
54                 iounmap(gpio_mux_reg);
55         } else {
56                 printk(KERN_ERR "Could not remap the GPIO mux register, display may not work properly!\n");
57         }
58 #endif
59         pmc_hiber = ioremap(wmt_pmc_base + 0x12, 2);
60         if (pmc_hiber)
61                 pm_power_off = &vt8500_power_off;
62         else
63                 printk(KERN_ERR "PMC Hibernation register could not be remapped, not enabling power off!\n");
64
65         wm8505_set_resources();
66         platform_add_devices(devices, ARRAY_SIZE(devices));
67         vt8500_gpio_init();
68 }
69
70 MACHINE_START(WM8505_7IN_NETBOOK, "WM8505 7-inch generic netbook")
71         .atag_offset    = 0x100,
72         .reserve        = wm8505_reserve_mem,
73         .map_io         = wm8505_map_io,
74         .init_irq       = wm8505_init_irq,
75         .timer          = &vt8500_timer,
76         .init_machine   = wm8505_7in_init,
77 MACHINE_END