- 根目录:
- arch
- arm
- mach-pxa
- include
- mach
- hardware.h
/*
* arch/arm/mach-pxa/include/mach/hardware.h
*
* Author: Nicolas Pitre
* Created: Jun 15, 2001
* Copyright: MontaVista Software Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_ARCH_HARDWARE_H
#define __ASM_ARCH_HARDWARE_H
#include <mach/addr-map.h>
/*
* Workarounds for at least 2 errata so far require this.
* The mapping is set in mach-pxa/generic.c.
*/
#define UNCACHED_PHYS_0 0xff000000
#define UNCACHED_ADDR UNCACHED_PHYS_0
/*
* Intel PXA2xx internal register mapping:
*
* 0x40000000 - 0x41ffffff <--> 0xf2000000 - 0xf3ffffff
* 0x44000000 - 0x45ffffff <--> 0xf4000000 - 0xf5ffffff
* 0x48000000 - 0x49ffffff <--> 0xf6000000 - 0xf7ffffff
* 0x4c000000 - 0x4dffffff <--> 0xf8000000 - 0xf9ffffff
* 0x50000000 - 0x51ffffff <--> 0xfa000000 - 0xfbffffff
* 0x54000000 - 0x55ffffff <--> 0xfc000000 - 0xfdffffff
* 0x58000000 - 0x59ffffff <--> 0xfe000000 - 0xffffffff
*
* Note that not all PXA2xx chips implement all those addresses, and the
* kernel only maps the minimum needed range of this mapping.
*/
#define io_v2p(x) (0x3c000000 + ((x) & 0x01ffffff) + (((x) & 0x0e000000) << 1))
#define io_p2v(x) IOMEM(0xf2000000 + ((x) & 0x01ffffff) + (((x) & 0x1c000000) >> 1))
#ifndef __ASSEMBLY__
# define __REG(x) (*((volatile u32 __iomem *)io_p2v(x)))
/* With indexed regs we don't want to feed the index through io_p2v()
especially if it is a variable, otherwise horrible code will result. */
# define __REG2(x,y) \
(*(volatile u32 __iomem*)((u32)&__REG(x) + (y)))
# define __PREG(x) (io_v2p((u32)&(x)))
#else
# define __REG(x) io_p2v(x)
# define __PREG(x) io_v2p(x)
#endif
#ifndef __ASSEMBLY__
#include <asm/cputype.h>
/*
* CPU Stepping CPU_ID JTAG_ID
*
* PXA210 B0 0x69052922 0x2926C013
* PXA210 B1 0x69052923 0x3926C013
* PXA210 B2 0x69052924 0x4926C013
* PXA210 C0 0x69052D25 0x5926C013
*
* PXA250 A0 0x69052100 0x09264013
* PXA250 A1 0x69052101 0x19264013
* PXA250 B0 0x69052902 0x29264013
* PXA250 B1 0x69052903 0x39264013
* PXA250 B2 0x69052904 0x49264013
* PXA250 C0 0x69052D05 0x59264013
*
* PXA255 A0 0x69052D06 0x69264013
*
* PXA26x A0 0x69052903 0x39264013
* PXA26x B0 0x69052D05 0x59264013
*
* PXA27x A0 0x69054110 0x09265013
* PXA27x A1 0x69054111 0x19265013
* PXA27x B0 0x69054112 0x29265013
* PXA27x B1 0x69054113 0x39265013
* PXA27x C0 0x69054114 0x49265013
* PXA27x C5 0x69054117 0x79265013
*
* PXA30x A0 0x69056880 0x0E648013
* PXA30x A1 0x69056881 0x1E648013
* PXA31x A0 0x69056890 0x0E649013
* PXA31x A1 0x69056891 0x1E649013
* PXA31x A2 0x69056892 0x2E649013
* PXA32x B1 0x69056825 0x5E642013
* PXA32x B2 0x69056826 0x6E642013
*
* PXA930 B0 0x69056835 0x5E643013
* PXA930 B1 0x69056837 0x7E643013
* PXA930 B2 0x69056838 0x8E643013
*
* PXA935 A0 0x56056931 0x1E653013
* PXA935 B0 0x56056936 0x6E653013
* PXA935 B1 0x56056938 0x8E653013
*/
#ifdef CONFIG_PXA25x
#define __cpu_is_pxa210(id) \
({ \
unsigned int _id = (id) & 0xf3f0; \
_id == 0x2120; \
})
#define __cpu_is_pxa250(id) \
({ \
unsigned int _id = (id) & 0xf3ff; \
_id <= 0x2105; \
})
#define __cpu_is_pxa255(id) \
({ \
unsigned int _id = (id) & 0xffff; \
_id == 0x2d06; \
})
#define __cpu_is_pxa25x(id) \
({ \
unsigned int _id = (id) & 0xf300; \
_id == 0x2100; \
})
#else
#define __cpu_is_pxa210(id) (0)
#define __cpu_is_pxa250(id) (0)
#define __cpu_is_pxa255(id) (0)
#define __cpu_is_pxa25x(id) (0)
#endif
#ifdef CONFIG_PXA27x
#define __cpu_is_pxa27x(id) \
({ \
unsigned int _id = (id) >> 4 & 0xfff; \
_id == 0x411; \
})
#else
#define __cpu_is_pxa27x(id) (0)
#endif
#ifdef CONFIG_CPU_PXA300
#define __cpu_is_pxa300(id) \
({ \
unsigned int _id = (id) >> 4 & 0xfff; \
_id == 0x688; \
})
#else
#define __cpu_is_pxa300(id) (0)
#endif
#ifdef CONFIG_CPU_PXA310
#define __cpu_is_pxa310(id) \
({ \
unsigned int _id = (id) >> 4 & 0xfff; \
_id == 0x689; \
})
#else
#define __cpu_is_pxa310(id) (0)
#endif
#ifdef CONFIG_CPU_PXA320
#define __cpu_is_pxa320(id) \
({ \
unsigned int _id = (id) >> 4 & 0xfff; \
_id == 0x603 || _id == 0x682; \
})
#else
#define __cpu_is_pxa320(id) (0)
#endif
#ifdef CONFIG_CPU_PXA930
#define __cpu_is_pxa930(id) \
({ \
unsigned int _id = (id) >> 4 & 0xfff; \
_id == 0x683; \
})
#else
#define __cpu_is_pxa930(id) (0)
#endif
#ifdef CONFIG_CPU_PXA935
#define __cpu_is_pxa935(id) \
({ \
unsigned int _id = (id) >> 4 & 0xfff; \
_id == 0x693; \
})
#else
#define __cpu_is_pxa935(id) (0)
#endif
#define cpu_is_pxa210() \
({ \
__cpu_is_pxa210(read_cpuid_id()); \
})
#define cpu_is_pxa250() \
({ \
__cpu_is_pxa250(read_cpuid_id()); \
})
#define cpu_is_pxa255() \
({ \
__cpu_is_pxa255(read_cpuid_id()); \
})
#define cpu_is_pxa25x() \
({ \
__cpu_is_pxa25x(read_cpuid_id()); \
})
#define cpu_is_pxa27x() \
({ \
__cpu_is_pxa27x(read_cpuid_id()); \
})
#define cpu_is_pxa300() \
({ \
__cpu_is_pxa300(read_cpuid_id()); \
})
#define cpu_is_pxa310() \
({ \
__cpu_is_pxa310(read_cpuid_id()); \
})
#define cpu_is_pxa320() \
({ \
__cpu_is_pxa320(read_cpuid_id()); \
})
#define cpu_is_pxa930() \
({ \
__cpu_is_pxa930(read_cpuid_id()); \
})
#define cpu_is_pxa935() \
({ \
__cpu_is_pxa935(read_cpuid_id()); \
})
/*
* CPUID Core Generation Bit
* <= 0x2 for pxa21x/pxa25x/pxa26x/pxa27x
*/
#if defined(CONFIG_PXA25x) || defined(CONFIG_PXA27x)
#define __cpu_is_pxa2xx(id) \
({ \
unsigned int _id = (id) >> 13 & 0x7; \
_id <= 0x2; \
})
#else
#define __cpu_is_pxa2xx(id) (0)
#endif
#ifdef CONFIG_PXA3xx
#define __cpu_is_pxa3xx(id) \
({ \
__cpu_is_pxa300(id) \
|| __cpu_is_pxa310(id) \
|| __cpu_is_pxa320(id) \
|| __cpu_is_pxa93x(id); \
})
#else
#define __cpu_is_pxa3xx(id) (0)
#endif
#if defined(CONFIG_CPU_PXA930) || defined(CONFIG_CPU_PXA935)
#define __cpu_is_pxa93x(id) \
({ \
__cpu_is_pxa930(id) \
|| __cpu_is_pxa935(id); \
})
#else
#define __cpu_is_pxa93x(id) (0)
#endif
#define cpu_is_pxa2xx() \
({ \
__cpu_is_pxa2xx(read_cpuid_id()); \
})
#define cpu_is_pxa3xx() \
({ \
__cpu_is_pxa3xx(read_cpuid_id()); \
})
#define cpu_is_pxa93x() \
({ \
__cpu_is_pxa93x(read_cpuid_id()); \
})
/*
* return current memory and LCD clock frequency in units of 10kHz
*/
extern unsigned int get_memclk_frequency_10khz(void);
/* return the clock tick rate of the OS timer */
extern unsigned long get_clock_tick_rate(void);
#endif
#endif /* _ASM_ARCH_HARDWARE_H */