2 * linux/include/asm-arm/arch-pxa/hardware.h
4 * Author: Nicolas Pitre
5 * Created: Jun 15, 2001
6 * Copyright: MontaVista Software Inc.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #ifndef __ASM_ARCH_HARDWARE_H
14 #define __ASM_ARCH_HARDWARE_H
17 * We requires absolute addresses.
22 * Workarounds for at least 2 errata so far require this.
23 * The mapping is set in mach-pxa/generic.c.
25 #define UNCACHED_PHYS_0 0xff000000
26 #define UNCACHED_ADDR UNCACHED_PHYS_0
29 * Intel PXA2xx internal register mapping:
31 * 0x40000000 - 0x41ffffff <--> 0xf2000000 - 0xf3ffffff
32 * 0x44000000 - 0x45ffffff <--> 0xf4000000 - 0xf5ffffff
33 * 0x48000000 - 0x49ffffff <--> 0xf6000000 - 0xf7ffffff
34 * 0x4c000000 - 0x4dffffff <--> 0xf8000000 - 0xf9ffffff
35 * 0x50000000 - 0x51ffffff <--> 0xfa000000 - 0xfbffffff
36 * 0x54000000 - 0x55ffffff <--> 0xfc000000 - 0xfdffffff
37 * 0x58000000 - 0x59ffffff <--> 0xfe000000 - 0xffffffff
39 * Note that not all PXA2xx chips implement all those addresses, and the
40 * kernel only maps the minimum needed range of this mapping.
42 #define io_p2v(x) (0xf2000000 + ((x) & 0x01ffffff) + (((x) & 0x1c000000) >> 1))
43 #define io_v2p(x) (0x3c000000 + ((x) & 0x01ffffff) + (((x) & 0x0e000000) << 1))
47 # define __REG(x) (*((volatile u32 *)io_p2v(x)))
49 /* With indexed regs we don't want to feed the index through io_p2v()
50 especially if it is a variable, otherwise horrible code will result. */
51 # define __REG2(x,y) \
52 (*(volatile u32 *)((u32)&__REG(x) + (y)))
54 # define __PREG(x) (io_v2p((u32)&(x)))
58 # define __REG(x) io_p2v(x)
59 # define __PREG(x) io_v2p(x)
66 #define __cpu_is_pxa21x(id) \
68 unsigned int _id = (id) >> 4 & 0xf3f; \
72 #define __cpu_is_pxa25x(id) \
74 unsigned int _id = (id) >> 4 & 0xfff; \
75 _id == 0x2d0 || _id == 0x290; \
78 #define __cpu_is_pxa21x(id) (0)
79 #define __cpu_is_pxa25x(id) (0)
83 #define __cpu_is_pxa27x(id) \
85 unsigned int _id = (id) >> 4 & 0xfff; \
89 #define __cpu_is_pxa27x(id) (0)
92 #ifdef CONFIG_CPU_PXA300
93 #define __cpu_is_pxa300(id) \
95 unsigned int _id = (id) >> 4 & 0xfff; \
99 #define __cpu_is_pxa300(id) (0)
102 #ifdef CONFIG_CPU_PXA310
103 #define __cpu_is_pxa310(id) \
105 unsigned int _id = (id) >> 4 & 0xfff; \
109 #define __cpu_is_pxa310(id) (0)
112 #ifdef CONFIG_CPU_PXA320
113 #define __cpu_is_pxa320(id) \
115 unsigned int _id = (id) >> 4 & 0xfff; \
116 _id == 0x603 || _id == 0x682; \
119 #define __cpu_is_pxa320(id) (0)
122 #define cpu_is_pxa21x() \
124 unsigned int id = read_cpuid(CPUID_ID); \
125 __cpu_is_pxa21x(id); \
128 #define cpu_is_pxa25x() \
130 unsigned int id = read_cpuid(CPUID_ID); \
131 __cpu_is_pxa25x(id); \
134 #define cpu_is_pxa27x() \
136 unsigned int id = read_cpuid(CPUID_ID); \
137 __cpu_is_pxa27x(id); \
140 #define cpu_is_pxa300() \
142 unsigned int id = read_cpuid(CPUID_ID); \
143 __cpu_is_pxa300(id); \
146 #define cpu_is_pxa310() \
148 unsigned int id = read_cpuid(CPUID_ID); \
149 __cpu_is_pxa310(id); \
152 #define cpu_is_pxa320() \
154 unsigned int id = read_cpuid(CPUID_ID); \
155 __cpu_is_pxa320(id); \
159 * CPUID Core Generation Bit
160 * <= 0x2 for pxa21x/pxa25x/pxa26x/pxa27x
161 * == 0x3 for pxa300/pxa310/pxa320
163 #define __cpu_is_pxa2xx(id) \
165 unsigned int _id = (id) >> 13 & 0x7; \
169 #define __cpu_is_pxa3xx(id) \
171 unsigned int _id = (id) >> 13 & 0x7; \
175 #define cpu_is_pxa2xx() \
177 unsigned int id = read_cpuid(CPUID_ID); \
178 __cpu_is_pxa2xx(id); \
181 #define cpu_is_pxa3xx() \
183 unsigned int id = read_cpuid(CPUID_ID); \
184 __cpu_is_pxa3xx(id); \
188 * Handy routine to set GPIO alternate functions
190 extern int pxa_gpio_mode( int gpio_mode );
193 * Return GPIO level, nonzero means high, zero is low
195 extern int pxa_gpio_get_value(unsigned gpio);
198 * Set output GPIO level
200 extern void pxa_gpio_set_value(unsigned gpio, int value);
203 * Routine to enable or disable CKEN
205 static inline void __deprecated pxa_set_cken(int clock, int enable)
207 extern void __pxa_set_cken(int clock, int enable);
208 __pxa_set_cken(clock, enable);
212 * return current memory and LCD clock frequency in units of 10kHz
214 extern unsigned int get_memclk_frequency_10khz(void);
218 #if defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI)
219 #define PCIBIOS_MIN_IO 0
220 #define PCIBIOS_MIN_MEM 0
221 #define pcibios_assign_all_busses() 1
224 #endif /* _ASM_ARCH_HARDWARE_H */