diff options
Diffstat (limited to 'arch/arm/mach-pxa/include/mach/hardware.h')
| -rw-r--r-- | arch/arm/mach-pxa/include/mach/hardware.h | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/include/mach/hardware.h b/arch/arm/mach-pxa/include/mach/hardware.h new file mode 100644 index 0000000..f8fb1e7 --- /dev/null +++ b/arch/arm/mach-pxa/include/mach/hardware.h @@ -0,0 +1,240 @@ +/* + * 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 + +/* + * 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 + +#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 + +#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()); \ + }) + +#define cpu_is_pxa930() \ + ({ \ + unsigned int id = read_cpuid(CPUID_ID); \ + __cpu_is_pxa930(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 */ |
