projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * Copied from linux/include/asm-arm/arch-sa1100/system.h | |
| 3 | * Copyright (c) 1999 Nicolas Pitre <nico@cam.org> | |
| 4 | */ | |
| 5 | #ifndef __ASM_ARCH_SYSTEM_H | |
| 6 | #define __ASM_ARCH_SYSTEM_H | |
| 7 | #include <linux/config.h> | |
| f8ce2547 RK |
8 | #include <linux/clk.h> |
| 9 | ||
| af973d2a | 10 | #include <asm/mach-types.h> |
| 0a5709b2 | 11 | #include <asm/hardware.h> |
| 9ad5897c TL |
12 | #include <asm/arch/prcm.h> |
| 13 | ||
| 14 | #ifndef CONFIG_MACH_VOICEBLUE | |
| 15 | #define voiceblue_reset() do {} while (0) | |
| 16 | #endif | |
| 1da177e4 LT |
17 | |
| 18 | static inline void arch_idle(void) | |
| 19 | { | |
| 20 | cpu_do_idle(); | |
| 21 | } | |
| 22 | ||
| 9ad5897c | 23 | static inline void omap1_arch_reset(char mode) |
| 1da177e4 | 24 | { |
| af973d2a TL |
25 | /* |
| 26 | * Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28 | |
| 27 | * "Global Software Reset Affects Traffic Controller Frequency". | |
| 28 | */ | |
| 29 | if (cpu_is_omap5912()) { | |
| 30 | omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4), | |
| 31 | DPLL_CTL); | |
| 32 | omap_writew(0x8, ARM_RSTCT1); | |
| 33 | } | |
| 9ad5897c | 34 | |
| af973d2a TL |
35 | if (machine_is_voiceblue()) |
| 36 | voiceblue_reset(); | |
| 37 | else | |
| af973d2a | 38 | omap_writew(1, ARM_RSTCT1); |
| 1da177e4 LT |
39 | } |
| 40 | ||
| 9ad5897c TL |
41 | static inline void omap2_arch_reset(char mode) |
| 42 | { | |
| 43 | u32 rate; | |
| 44 | struct clk *vclk, *sclk; | |
| 45 | ||
| 46 | vclk = clk_get(NULL, "virt_prcm_set"); | |
| 47 | sclk = clk_get(NULL, "sys_ck"); | |
| 48 | rate = clk_get_rate(sclk); | |
| 49 | clk_set_rate(vclk, rate); /* go to bypass for OMAP limitation */ | |
| 50 | RM_RSTCTRL_WKUP |= 2; | |
| 51 | } | |
| 52 | ||
| 53 | static inline void arch_reset(char mode) | |
| 54 | { | |
| 55 | if (!cpu_is_omap24xx()) | |
| 56 | omap1_arch_reset(mode); | |
| 57 | else | |
| 58 | omap2_arch_reset(mode); | |
| 59 | } | |
| 60 | ||
| 1da177e4 | 61 | #endif |