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
16 #include <linux/config.h>
17 #include <asm/mach-types.h>
20 * We requires absolute addresses.
25 * Workarounds for at least 2 errata so far require this.
26 * The mapping is set in mach-pxa/generic.c.
28 #define UNCACHED_PHYS_0 0xff000000
29 #define UNCACHED_ADDR UNCACHED_PHYS_0
32 * Intel PXA2xx internal register mapping:
34 * 0x40000000 - 0x41ffffff <--> 0xf2000000 - 0xf3ffffff
35 * 0x44000000 - 0x45ffffff <--> 0xf4000000 - 0xf5ffffff
36 * 0x48000000 - 0x49ffffff <--> 0xf6000000 - 0xf7ffffff
37 * 0x4c000000 - 0x4dffffff <--> 0xf8000000 - 0xf9ffffff
38 * 0x50000000 - 0x51ffffff <--> 0xfa000000 - 0xfbffffff
39 * 0x54000000 - 0x55ffffff <--> 0xfc000000 - 0xfdffffff
40 * 0x58000000 - 0x59ffffff <--> 0xfe000000 - 0xffffffff
42 * Note that not all PXA2xx chips implement all those addresses, and the
43 * kernel only maps the minimum needed range of this mapping.
45 #ifndef CONFIG_CPU_MONAHANS
46 #define io_p2v(x) (0xf2000000 + ((x) & 0x01ffffff) + (((x) & 0x1c000000) >> 1))
47 #define io_v2p(x) (0x3c000000 + ((x) & 0x01ffffff) + (((x) & 0x0e000000) << 1))
50 /* There are too many IO area needed to map, so I divide them into 3 areas
51 * 0x40000000 - 0x41ffffff <--> 0xf6000000 - 0xf7ffffff Devs
53 #define io_p2v(x) ((((x) & 0xfc000000)>>4) + 0xf2000000 + ((x)&0x01ffffff))
54 #define io_v2p(x) (((((x) - 0xf2000000)&0xfc000000)<<4) + ((x)&0x01ffffff))
57 * 0x42000000 - 0x421fffff <--> 0xf8000000 - 0xf81fffff MMC2 & USIM2
58 * 0x43000000 - 0x430fffff <--> 0xf8200000 - 0xf82fffff Caddo
59 * 0x43100000 - 0x431fffff <--> 0xf8300000 - 0xf83fffff NAND
60 * 0x44000000 - 0x440fffff <--> 0xf8400000 - 0xf84fffff LCD
61 * 0x46000000 - 0x460fffff <--> 0xf8800000 - 0xf88fffff Mini LCD
62 * 0x48100000 - 0x481fffff <--> 0xf8d00000 - 0xf8dfffff Dynamic Mem Ctl
63 * 0x4a000000 - 0x4a0fffff <--> 0xf9000000 - 0xf90fffff Static Mem Ctl
64 * 0x4c000000 - 0x4c0fffff <--> 0xf9400000 - 0xf94fffff USB Host
67 #define io_p2v_2(x) (((((x) - 0x42000000) & 0xff000000) >> 3) + 0xf8000000\
69 #define io_v2p_2(x) (((((x) & 0xffe00000) - 0xf8000000) << 3) + 0x42000000\
72 * 0x50000000 - 0x500fffff <--> 0xfa000000 - 0xfa0fffff Camera Interface
73 * 0x54000000 - 0x540fffff <--> 0xfa400000 - 0xfa4fffff 2D Graphics Ctrl
74 * 0x54100000 - 0x541fffff <--> 0xfa500000 - 0xfa5fffff USB Device 2.0 Ctrl
75 * 0x58000000 - 0x580fffff <--> 0xfa800000 - 0xfa8fffff Internal SRAM Ctrl
78 #define io_p2v_3(x) ((((x) & 0xfc000000) >> 4) + 0xf5000000 + \
80 #define io_v2p_3(x) (((((x) - 0xf5000000) & 0x0fc00000) << 4) + \
82 #endif /* CONFIG_CPU_MONAHANS */
87 # define __REG(x) (*((volatile u32 *)io_p2v(x)))
90 * This __REG() version gives the same results as the one above, except
91 * that we are fooling gcc somehow so it generates far better and smaller
92 * assembly code for access to contigous registers. It's a shame that gcc
93 * doesn't guess this by itself.
95 #include <asm/types.h>
96 typedef struct { volatile u32 offset[4096]; } __regbase;
97 # define __REGP(x) ((__regbase *)((x)&~4095))->offset[((x)&4095)>>2]
98 # define __REG(x) __REGP(io_p2v(x))
100 /* __REG_2 is for NAND, LCD etc.
101 * __REG_3 is for Camera Interface, 2D Graphics, U2D etc.*/
102 #ifdef CONFIG_CPU_MONAHANS
103 #define __REG_2(x) __REGP(io_p2v_2(x))
104 #define __REG_3(x) __REGP(io_p2v_3(x))
106 #endif /* CONFIG_CPU_MONAHANS */
109 /* With indexed regs we don't want to feed the index through io_p2v()
110 especially if it is a variable, otherwise horrible code will result. */
111 # define __REG2(x,y) (*(volatile u32 *)((u32)&__REG(x) + (y)))
113 # define __PREG(x) (io_v2p((u32)&(x)))
115 #else /* ifndef __ASSEMBLY__ */
117 # define __REG(x) io_p2v(x)
118 # define __PREG(x) io_v2p(x)
120 #ifdef CONFIG_CPU_MONAHANS
121 # define __REG_2(x) io_p2v(x)
122 # define __REG_3(x) io_p2v(x)
123 #endif /* CONFIG_CPU_MONAHANS */
125 #endif /* ifndef __ASSEMBLY__ */
129 #ifdef CONFIG_MACH_ZYLONITE
130 #include "zylonite.h"
134 * Handy routine to set GPIO alternate functions
136 extern void pxa_gpio_mode( int gpio_mode );
139 * Routine to enable or disable CKEN
141 extern void pxa_set_cken(int clock, int enable);
144 * return current memory and LCD clock frequency in units of 10kHz
146 extern unsigned int get_memclk_frequency_10khz(void);
147 extern unsigned int get_lcdclk_frequency_10khz(void);
148 #endif /* __ASSEMBLY__ */
150 #ifdef CONFIG_ARCH_LUBBOCK
154 #ifdef CONFIG_ARCH_PXA_IDP
158 #ifdef CONFIG_ARCH_PXA_CERF
162 #if CONFIG_CPU_MONAHANS_L2CACHE
163 #define __cpuc_flush_l2cache_all xscale_flush_l2cache_all
164 extern void __cpuc_flush_l2cache_all(void);
165 #define flush_l2cache_all __cpuc_flush_l2cache_all
167 #define __cpuc_flush_l2cache_all() do {} while (0)
168 #define flush_l2cache_all() do {} while (0)
171 #ifdef CONFIG_ARCH_CSB226
175 #ifdef CONFIG_ARCH_INNOKOM
179 #ifdef CONFIG_ARCH_PLEB
183 #ifdef CONFIG_MACH_MAINSTONE
184 #include "mainstone.h"
187 #include "pxa-regs.h"
189 #endif /* _ASM_ARCH_HARDWARE_H */