forked from Minki/linux
9b2a606d38
Signed-off-by: Eric Miao <eric.miao@canonical.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
316 lines
6.9 KiB
C
316 lines
6.9 KiB
C
/*
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* arch/arm/mach-pxa/include/mach/hardware.h
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*
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* Author: Nicolas Pitre
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* Created: Jun 15, 2001
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* Copyright: MontaVista Software Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __ASM_ARCH_HARDWARE_H
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#define __ASM_ARCH_HARDWARE_H
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/*
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* Workarounds for at least 2 errata so far require this.
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* The mapping is set in mach-pxa/generic.c.
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*/
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#define UNCACHED_PHYS_0 0xff000000
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#define UNCACHED_ADDR UNCACHED_PHYS_0
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/*
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* Intel PXA2xx internal register mapping:
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*
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* 0x40000000 - 0x41ffffff <--> 0xf2000000 - 0xf3ffffff
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* 0x44000000 - 0x45ffffff <--> 0xf4000000 - 0xf5ffffff
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* 0x48000000 - 0x49ffffff <--> 0xf6000000 - 0xf7ffffff
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* 0x4c000000 - 0x4dffffff <--> 0xf8000000 - 0xf9ffffff
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* 0x50000000 - 0x51ffffff <--> 0xfa000000 - 0xfbffffff
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* 0x54000000 - 0x55ffffff <--> 0xfc000000 - 0xfdffffff
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* 0x58000000 - 0x59ffffff <--> 0xfe000000 - 0xffffffff
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*
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* Note that not all PXA2xx chips implement all those addresses, and the
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* kernel only maps the minimum needed range of this mapping.
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*/
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#define io_p2v(x) (0xf2000000 + ((x) & 0x01ffffff) + (((x) & 0x1c000000) >> 1))
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#define io_v2p(x) (0x3c000000 + ((x) & 0x01ffffff) + (((x) & 0x0e000000) << 1))
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#ifndef __ASSEMBLY__
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# define __REG(x) (*((volatile u32 *)io_p2v(x)))
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/* With indexed regs we don't want to feed the index through io_p2v()
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especially if it is a variable, otherwise horrible code will result. */
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# define __REG2(x,y) \
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(*(volatile u32 *)((u32)&__REG(x) + (y)))
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# define __PREG(x) (io_v2p((u32)&(x)))
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#else
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# define __REG(x) io_p2v(x)
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# define __PREG(x) io_v2p(x)
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#endif
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#ifndef __ASSEMBLY__
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#include <asm/cputype.h>
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/*
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* CPU Stepping CPU_ID JTAG_ID
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*
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* PXA210 B0 0x69052922 0x2926C013
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* PXA210 B1 0x69052923 0x3926C013
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* PXA210 B2 0x69052924 0x4926C013
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* PXA210 C0 0x69052D25 0x5926C013
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*
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* PXA250 A0 0x69052100 0x09264013
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* PXA250 A1 0x69052101 0x19264013
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* PXA250 B0 0x69052902 0x29264013
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* PXA250 B1 0x69052903 0x39264013
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* PXA250 B2 0x69052904 0x49264013
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* PXA250 C0 0x69052D05 0x59264013
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*
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* PXA255 A0 0x69052D06 0x69264013
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*
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* PXA26x A0 0x69052903 0x39264013
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* PXA26x B0 0x69052D05 0x59264013
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*
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* PXA27x A0 0x69054110 0x09265013
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* PXA27x A1 0x69054111 0x19265013
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* PXA27x B0 0x69054112 0x29265013
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* PXA27x B1 0x69054113 0x39265013
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* PXA27x C0 0x69054114 0x49265013
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* PXA27x C5 0x69054117 0x79265013
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*
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* PXA30x A0 0x69056880 0x0E648013
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* PXA30x A1 0x69056881 0x1E648013
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* PXA31x A0 0x69056890 0x0E649013
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* PXA31x A1 0x69056891 0x1E649013
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* PXA31x A2 0x69056892 0x2E649013
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* PXA32x B1 0x69056825 0x5E642013
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* PXA32x B2 0x69056826 0x6E642013
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*
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* PXA930 B0 0x69056835 0x5E643013
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* PXA930 B1 0x69056837 0x7E643013
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* PXA930 B2 0x69056838 0x8E643013
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*
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* PXA935 A0 0x56056931 0x1E653013
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* PXA935 B0 0x56056936 0x6E653013
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* PXA935 B1 0x56056938 0x8E653013
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*/
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#ifdef CONFIG_PXA25x
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#define __cpu_is_pxa210(id) \
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({ \
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unsigned int _id = (id) & 0xf3f0; \
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_id == 0x2120; \
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})
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#define __cpu_is_pxa250(id) \
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({ \
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unsigned int _id = (id) & 0xf3ff; \
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_id <= 0x2105; \
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})
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#define __cpu_is_pxa255(id) \
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({ \
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unsigned int _id = (id) & 0xffff; \
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_id == 0x2d06; \
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})
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#define __cpu_is_pxa25x(id) \
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({ \
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unsigned int _id = (id) & 0xf300; \
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_id == 0x2100; \
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})
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#else
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#define __cpu_is_pxa210(id) (0)
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#define __cpu_is_pxa250(id) (0)
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#define __cpu_is_pxa255(id) (0)
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#define __cpu_is_pxa25x(id) (0)
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#endif
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#ifdef CONFIG_PXA27x
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#define __cpu_is_pxa27x(id) \
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({ \
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unsigned int _id = (id) >> 4 & 0xfff; \
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_id == 0x411; \
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})
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#else
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#define __cpu_is_pxa27x(id) (0)
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#endif
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#ifdef CONFIG_CPU_PXA300
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#define __cpu_is_pxa300(id) \
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({ \
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unsigned int _id = (id) >> 4 & 0xfff; \
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_id == 0x688; \
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})
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#else
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#define __cpu_is_pxa300(id) (0)
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#endif
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#ifdef CONFIG_CPU_PXA310
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#define __cpu_is_pxa310(id) \
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({ \
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unsigned int _id = (id) >> 4 & 0xfff; \
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_id == 0x689; \
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})
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#else
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#define __cpu_is_pxa310(id) (0)
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#endif
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#ifdef CONFIG_CPU_PXA320
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#define __cpu_is_pxa320(id) \
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({ \
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unsigned int _id = (id) >> 4 & 0xfff; \
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_id == 0x603 || _id == 0x682; \
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})
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#else
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#define __cpu_is_pxa320(id) (0)
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#endif
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#ifdef CONFIG_CPU_PXA930
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#define __cpu_is_pxa930(id) \
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({ \
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unsigned int _id = (id) >> 4 & 0xfff; \
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_id == 0x683; \
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})
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#else
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#define __cpu_is_pxa930(id) (0)
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#endif
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#ifdef CONFIG_CPU_PXA935
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#define __cpu_is_pxa935(id) \
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({ \
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unsigned int _id = (id) >> 4 & 0xfff; \
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_id == 0x693; \
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})
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#else
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#define __cpu_is_pxa935(id) (0)
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#endif
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#ifdef CONFIG_CPU_PXA950
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#define __cpu_is_pxa950(id) \
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({ \
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unsigned int _id = (id) >> 4 & 0xfff; \
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_id == 0x697; \
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})
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#else
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#define __cpu_is_pxa950(id) (0)
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#endif
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#define cpu_is_pxa210() \
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({ \
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__cpu_is_pxa210(read_cpuid_id()); \
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})
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#define cpu_is_pxa250() \
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({ \
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__cpu_is_pxa250(read_cpuid_id()); \
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})
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#define cpu_is_pxa255() \
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({ \
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__cpu_is_pxa255(read_cpuid_id()); \
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})
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#define cpu_is_pxa25x() \
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({ \
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__cpu_is_pxa25x(read_cpuid_id()); \
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})
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#define cpu_is_pxa27x() \
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({ \
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__cpu_is_pxa27x(read_cpuid_id()); \
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})
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#define cpu_is_pxa300() \
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({ \
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__cpu_is_pxa300(read_cpuid_id()); \
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})
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#define cpu_is_pxa310() \
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({ \
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__cpu_is_pxa310(read_cpuid_id()); \
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})
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#define cpu_is_pxa320() \
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({ \
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__cpu_is_pxa320(read_cpuid_id()); \
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})
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#define cpu_is_pxa930() \
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({ \
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__cpu_is_pxa930(read_cpuid_id()); \
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})
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#define cpu_is_pxa935() \
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({ \
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__cpu_is_pxa935(read_cpuid_id()); \
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})
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#define cpu_is_pxa950() \
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({ \
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__cpu_is_pxa950(read_cpuid_id()); \
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})
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/*
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* CPUID Core Generation Bit
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* <= 0x2 for pxa21x/pxa25x/pxa26x/pxa27x
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* == 0x3 for pxa300/pxa310/pxa320
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*/
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#define __cpu_is_pxa2xx(id) \
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({ \
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unsigned int _id = (id) >> 13 & 0x7; \
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_id <= 0x2; \
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})
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#define __cpu_is_pxa3xx(id) \
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({ \
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unsigned int _id = (id) >> 13 & 0x7; \
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_id == 0x3; \
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})
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#define __cpu_is_pxa93x(id) \
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({ \
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unsigned int _id = (id) >> 4 & 0xfff; \
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_id == 0x683 || _id == 0x693; \
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})
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#define cpu_is_pxa2xx() \
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({ \
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__cpu_is_pxa2xx(read_cpuid_id()); \
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})
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#define cpu_is_pxa3xx() \
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({ \
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__cpu_is_pxa3xx(read_cpuid_id()); \
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})
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#define cpu_is_pxa93x() \
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({ \
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__cpu_is_pxa93x(read_cpuid_id()); \
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})
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/*
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* return current memory and LCD clock frequency in units of 10kHz
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*/
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extern unsigned int get_memclk_frequency_10khz(void);
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/* return the clock tick rate of the OS timer */
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extern unsigned long get_clock_tick_rate(void);
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#endif
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#if defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI)
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#define PCIBIOS_MIN_IO 0
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#define PCIBIOS_MIN_MEM 0
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#define pcibios_assign_all_busses() 1
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#endif
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#endif /* _ASM_ARCH_HARDWARE_H */
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