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Merge tag 'spi' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
[~andy/linux] / arch / arm / mach-vt8500 / bv07.c
1 /*
2  *  arch/arm/mach-vt8500/bv07.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 #include <mach/restart.h>
27
28 #include "devices.h"
29
30 static void __iomem *pmc_hiber;
31
32 static struct platform_device *devices[] __initdata = {
33         &vt8500_device_uart0,
34         &vt8500_device_lcdc,
35         &vt8500_device_ehci,
36         &vt8500_device_ge_rops,
37         &vt8500_device_pwm,
38         &vt8500_device_pwmbl,
39         &vt8500_device_rtc,
40 };
41
42 static void vt8500_power_off(void)
43 {
44         local_irq_disable();
45         writew(5, pmc_hiber);
46         asm("mcr%? p15, 0, %0, c7, c0, 4" : : "r" (0));
47 }
48
49 void __init bv07_init(void)
50 {
51 #ifdef CONFIG_FB_VT8500
52         void __iomem *gpio_mux_reg = ioremap(wmt_gpio_base + 0x200, 4);
53         if (gpio_mux_reg) {
54                 writel(readl(gpio_mux_reg) | 1, gpio_mux_reg);
55                 iounmap(gpio_mux_reg);
56         } else {
57                 printk(KERN_ERR "Could not remap the GPIO mux register, display may not work properly!\n");
58         }
59 #endif
60         pmc_hiber = ioremap(wmt_pmc_base + 0x12, 2);
61         if (pmc_hiber)
62                 pm_power_off = &vt8500_power_off;
63         else
64                 printk(KERN_ERR "PMC Hibernation register could not be remapped, not enabling power off!\n");
65
66         wmt_setup_restart();
67         vt8500_set_resources();
68         platform_add_devices(devices, ARRAY_SIZE(devices));
69         vt8500_gpio_init();
70 }
71
72 MACHINE_START(BV07, "Benign BV07 Mini Netbook")
73         .atag_offset    = 0x100,
74         .restart        = wmt_restart,
75         .reserve        = vt8500_reserve_mem,
76         .map_io         = vt8500_map_io,
77         .init_irq       = vt8500_init_irq,
78         .timer          = &vt8500_timer,
79         .init_machine   = bv07_init,
80 MACHINE_END