keita kobayashi | 5f6108b | 2014-05-30 14:18:48 +0900 | [diff] [blame^] | 1 | /* |
| 2 | * r8a7791 Power management support |
| 3 | * |
| 4 | * Copyright (C) 2014 Renesas Electronics Corporation |
| 5 | * Copyright (C) 2011 Renesas Solutions Corp. |
| 6 | * Copyright (C) 2011 Magnus Damm |
| 7 | * |
| 8 | * This file is subject to the terms and conditions of the GNU General Public |
| 9 | * License. See the file "COPYING" in the main directory of this archive |
| 10 | * for more details. |
| 11 | */ |
| 12 | |
| 13 | #include <asm/io.h> |
| 14 | #include <linux/kernel.h> |
| 15 | #include <mach/r8a7791.h> |
| 16 | #include "pm-rcar.h" |
| 17 | |
| 18 | /* SYSC */ |
| 19 | #define SYSCIER 0x0c |
| 20 | #define SYSCIMR 0x10 |
| 21 | |
| 22 | #if defined(CONFIG_SMP) |
| 23 | |
| 24 | static void __init r8a7791_sysc_init(void) |
| 25 | { |
| 26 | void __iomem *base = rcar_sysc_init(0xe6180000); |
| 27 | |
| 28 | /* enable all interrupt sources, but do not use interrupt handler */ |
| 29 | iowrite32(0x0131000e, base + SYSCIER); |
| 30 | iowrite32(0, base + SYSCIMR); |
| 31 | } |
| 32 | |
| 33 | #else /* CONFIG_SMP */ |
| 34 | |
| 35 | static inline void r8a7791_sysc_init(void) {} |
| 36 | |
| 37 | #endif /* CONFIG_SMP */ |
| 38 | |
| 39 | void __init r8a7791_pm_init(void) |
| 40 | { |
| 41 | static int once; |
| 42 | |
| 43 | if (once++) |
| 44 | return; |
| 45 | |
| 46 | r8a7791_sysc_init(); |
| 47 | } |