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/*
* linux/include/asm-arm/arch-pxa/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
/*
* We requires absolute addresses.
*/
#define PCIO_BASE 0
/*
* 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_p2v(x) (0xf2000000 + ((x) & 0x01ffffff) + (((x) & 0x1c000000) >> 1))
#define io_v2p(x) (0x3c000000 + ((x) & 0x01ffffff) + (((x) & 0x0e000000) << 1))
#ifndef __ASSEMBLY__
# define __REG(x) (*((volatile u32 *)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 *)((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__
#ifdef CONFIG_PXA25x
#define __cpu_is_pxa21x(id) \
({ \
unsigned int _id = (id) >> 4 & 0xf3f; \
_id == 0x212; \
})
#define __cpu_is_pxa255(id) \
({ \
unsigned int _id = (id) >> 4 & 0xfff; \
_id == 0x2d0; \
})
#define __cpu_is_pxa25x(id) \
({ \
unsigned int _id = (id) >> 4 & 0xfff; \
_id == 0x2d0 || _id == 0x290; \
})
#else
#define __cpu_is_pxa21x(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
#define cpu_is_pxa21x() \
({ \
__cpu_is_pxa21x(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()); \
})
/*
* CPUID Core Generation Bit
* <= 0x2 for pxa21x/pxa25x/pxa26x/pxa27x
* == 0x3 for pxa300/pxa310/pxa320
*/
#define __cpu_is_pxa2xx(id) \
({ \
unsigned int _id = (id) >> 13 & 0x7; \
_id <= 0x2; \
})
#define __cpu_is_pxa3xx(id) \
({ \
unsigned int _id = (id) >> 13 & 0x7; \
_id == 0x3; \
})
#define cpu_is_pxa2xx() \
({ \
__cpu_is_pxa2xx(read_cpuid_id()); \
})
#define cpu_is_pxa3xx() \
({ \
__cpu_is_pxa3xx(read_cpuid_id()); \
})
/*
* Handy routine to set GPIO alternate functions
*/
extern int pxa_gpio_mode( int gpio_mode );
/*
* Return GPIO level, nonzero means high, zero is low
*/
extern int pxa_gpio_get_value(unsigned gpio);
/*
* Set output GPIO level
*/
extern void pxa_gpio_set_value(unsigned gpio, int value);
/*
* return current memory and LCD clock frequency in units of 10kHz
*/
extern unsigned int get_memclk_frequency_10khz(void);
/*
* register GPIO as reset generator
*/
extern int init_gpio_reset(int gpio);
#endif
#if defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI)
#define PCIBIOS_MIN_IO 0
#define PCIBIOS_MIN_MEM 0
#define pcibios_assign_all_busses() 1
#endif
#endif /* _ASM_ARCH_HARDWARE_H */
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