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[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / plat-omap / include / mach / system.h
1 /*
2 * Copied from arch/arm/mach-sa1100/include/mach/system.h
3 * Copyright (c) 1999 Nicolas Pitre <nico@fluxnic.net>
4 */
5 #ifndef __ASM_ARCH_SYSTEM_H
6 #define __ASM_ARCH_SYSTEM_H
7 #include <linux/clk.h>
8
9 #include <asm/mach-types.h>
10 #include <mach/hardware.h>
11
12 #include <mach/prcm.h>
13
14 #ifndef CONFIG_MACH_VOICEBLUE
15 #define voiceblue_reset() do {} while (0)
16 #else
17 extern void voiceblue_reset(void);
18 #endif
19
20 static inline void arch_idle(void)
21 {
22 cpu_do_idle();
23 }
24
25 static inline void omap1_arch_reset(char mode)
26 {
27 /*
28 * Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28
29 * "Global Software Reset Affects Traffic Controller Frequency".
30 */
31 if (cpu_is_omap5912()) {
32 omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4),
33 DPLL_CTL);
34 omap_writew(0x8, ARM_RSTCT1);
35 }
36
37 if (machine_is_voiceblue())
38 voiceblue_reset();
39 else
40 omap_writew(1, ARM_RSTCT1);
41 }
42
43 static inline void arch_reset(char mode, const char *cmd)
44 {
45 if (!cpu_class_is_omap2())
46 omap1_arch_reset(mode);
47 else
48 omap_prcm_arch_reset(mode);
49 }
50
51 #endif