projects / mirror_ubuntu-hirsute-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * linux/include/asm-arm/arch-pxa/hardware.h | |
| 3 | * | |
| 4 | * Author: Nicolas Pitre | |
| 5 | * Created: Jun 15, 2001 | |
| 6 | * Copyright: MontaVista Software Inc. | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or modify | |
| 9 | * it under the terms of the GNU General Public License version 2 as | |
| 10 | * published by the Free Software Foundation. | |
| 11 | */ | |
| 12 | ||
| 13 | #ifndef __ASM_ARCH_HARDWARE_H | |
| 14 | #define __ASM_ARCH_HARDWARE_H | |
| 15 | ||
| 16 | /* | |
| 17 | * We requires absolute addresses. | |
| 18 | */ | |
| 19 | #define PCIO_BASE 0 | |
| 20 | ||
| 21 | /* | |
| 22 | * Workarounds for at least 2 errata so far require this. | |
| 23 | * The mapping is set in mach-pxa/generic.c. | |
| 24 | */ | |
| 25 | #define UNCACHED_PHYS_0 0xff000000 | |
| 26 | #define UNCACHED_ADDR UNCACHED_PHYS_0 | |
| 27 | ||
| 28 | /* | |
| 29 | * Intel PXA2xx internal register mapping: | |
| 30 | * | |
| 31 | * 0x40000000 - 0x41ffffff <--> 0xf2000000 - 0xf3ffffff | |
| 32 | * 0x44000000 - 0x45ffffff <--> 0xf4000000 - 0xf5ffffff | |
| 33 | * 0x48000000 - 0x49ffffff <--> 0xf6000000 - 0xf7ffffff | |
| 34 | * 0x4c000000 - 0x4dffffff <--> 0xf8000000 - 0xf9ffffff | |
| 35 | * 0x50000000 - 0x51ffffff <--> 0xfa000000 - 0xfbffffff | |
| 36 | * 0x54000000 - 0x55ffffff <--> 0xfc000000 - 0xfdffffff | |
| 37 | * 0x58000000 - 0x59ffffff <--> 0xfe000000 - 0xffffffff | |
| 38 | * | |
| 39 | * Note that not all PXA2xx chips implement all those addresses, and the | |
| 40 | * kernel only maps the minimum needed range of this mapping. | |
| 41 | */ | |
| 42 | #define io_p2v(x) (0xf2000000 + ((x) & 0x01ffffff) + (((x) & 0x1c000000) >> 1)) | |
| 43 | #define io_v2p(x) (0x3c000000 + ((x) & 0x01ffffff) + (((x) & 0x0e000000) << 1)) | |
| 44 | ||
| 45 | #ifndef __ASSEMBLY__ | |
| 46 | ||
| 63a4b52c | 47 | # define __REG(x) (*((volatile u32 *)io_p2v(x))) |
| 1da177e4 LT |
48 | |
| 49 | /* With indexed regs we don't want to feed the index through io_p2v() | |
| 50 | especially if it is a variable, otherwise horrible code will result. */ | |
| 61c8c158 | 51 | # define __REG2(x,y) \ |
| 63a4b52c | 52 | (*(volatile u32 *)((u32)&__REG(x) + (y))) |
| 1da177e4 LT |
53 | |
| 54 | # define __PREG(x) (io_v2p((u32)&(x))) | |
| 55 | ||
| 56 | #else | |
| 57 | ||
| 58 | # define __REG(x) io_p2v(x) | |
| 59 | # define __PREG(x) io_v2p(x) | |
| 60 | ||
| 61 | #endif | |
| 62 | ||
| 63 | #ifndef __ASSEMBLY__ | |
| 64 | ||
| 65 | /* | |
| 66 | * Handy routine to set GPIO alternate functions | |
| 67 | */ | |
| 68 | extern void pxa_gpio_mode( int gpio_mode ); | |
| 69 | ||
| 70 | /* | |
| 71 | * Routine to enable or disable CKEN | |
| 72 | */ | |
| 73 | extern void pxa_set_cken(int clock, int enable); | |
| 74 | ||
| 75 | /* | |
| 76 | * return current memory and LCD clock frequency in units of 10kHz | |
| 77 | */ | |
| 78 | extern unsigned int get_memclk_frequency_10khz(void); | |
| 79 | extern unsigned int get_lcdclk_frequency_10khz(void); | |
| 80 | ||
| 81 | #endif | |
| 82 | ||
| 83 | #endif /* _ASM_ARCH_HARDWARE_H */ |