1 /* SPDX-License-Identifier: GPL-2.0 */ 1 2 /* 3 * Author: Nicolas Pitre 4 * Created: Jun 15, 2001 5 * Copyright: MontaVista Software Inc. 6 */ 7 #ifndef __ASM_MACH_PXA_REGS_H 8 #define __ASM_MACH_PXA_REGS_H 9 10 /* 11 * Workarounds for at least 2 errata so far re 12 * The mapping is set in mach-pxa/generic.c. 13 */ 14 #define UNCACHED_PHYS_0 0xfe000000 15 #define UNCACHED_PHYS_0_SIZE 0x00100000 16 17 /* 18 * Intel PXA2xx internal register mapping: 19 * 20 * 0x40000000 - 0x41ffffff <--> 0xf2000000 - 0 21 * 0x44000000 - 0x45ffffff <--> 0xf4000000 - 0 22 * 0x48000000 - 0x49ffffff <--> 0xf6000000 - 0 23 * 0x4c000000 - 0x4dffffff <--> 0xf8000000 - 0 24 * 0x50000000 - 0x51ffffff <--> 0xfa000000 - 0 25 * 0x54000000 - 0x55ffffff <--> 0xfc000000 - 0 26 * 0x58000000 - 0x59ffffff <--> 0xfe000000 - 0 27 * 28 * Note that not all PXA2xx chips implement al 29 * kernel only maps the minimum needed range o 30 */ 31 #define io_v2p(x) (0x3c000000 + ((x) & 0x01fff 32 #define io_p2v(x) IOMEM(0xf2000000 + ((x) & 0x 33 34 #ifndef __ASSEMBLY__ 35 # define __REG(x) (*((volatile u32 __iom 36 37 /* With indexed regs we don't want to feed the 38 especially if it is a variable, otherwise h 39 # define __REG2(x,y) \ 40 (*(volatile u32 __iomem*)((u32)&__REG( 41 42 # define __PREG(x) (io_v2p((u32)&(x))) 43 44 #else 45 46 # define __REG(x) io_p2v(x) 47 # define __PREG(x) io_v2p(x) 48 49 #endif 50 51 52 #endif 53
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