diff options
Diffstat (limited to 'kernel/arch/arm/mach-pxa/include/mach/hardware.h')
| -rw-r--r-- | kernel/arch/arm/mach-pxa/include/mach/hardware.h | 310 |
1 files changed, 310 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-pxa/include/mach/hardware.h b/kernel/arch/arm/mach-pxa/include/mach/hardware.h new file mode 100644 index 000000000..8d63c211b --- /dev/null +++ b/kernel/arch/arm/mach-pxa/include/mach/hardware.h @@ -0,0 +1,310 @@ +/* + * 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 0xfe000000 +#define UNCACHED_PHYS_0_SIZE 0x00100000 + +/* + * 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 */ |