Merge branch 'for-linus' of ssh://master.kernel.org/pub/scm/linux/kernel/git/ieee1394...
[sfrench/cifs-2.6.git] / include / asm-arm / arch-at91rm9200 / hardware.h
1 /*
2  * include/asm-arm/arch-at91rm9200/hardware.h
3  *
4  *  Copyright (C) 2003 SAN People
5  *  Copyright (C) 2003 ATMEL
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  */
13
14 #ifndef __ASM_ARCH_HARDWARE_H
15 #define __ASM_ARCH_HARDWARE_H
16
17 #include <asm/sizes.h>
18
19 #if defined(CONFIG_ARCH_AT91RM9200)
20 #include <asm/arch/at91rm9200.h>
21 #elif defined(CONFIG_ARCH_AT91SAM9260)
22 #include <asm/arch/at91sam9260.h>
23 #elif defined(CONFIG_ARCH_AT91SAM9261)
24 #include <asm/arch/at91sam9261.h>
25 #else
26 #error "Unsupported AT91 processor"
27 #endif
28
29
30 /*
31  * Remap the peripherals from address 0xFFFA0000 .. 0xFFFFFFFF
32  * to 0xFEFA0000 .. 0xFF000000.  (384Kb)
33  */
34 #define AT91_IO_PHYS_BASE       0xFFFA0000
35 #define AT91_IO_SIZE            (0xFFFFFFFF - AT91_IO_PHYS_BASE + 1)
36 #define AT91_IO_VIRT_BASE       (0xFF000000 - AT91_IO_SIZE)
37
38  /* Convert a physical IO address to virtual IO address */
39 #define AT91_IO_P2V(x)  ((x) - AT91_IO_PHYS_BASE + AT91_IO_VIRT_BASE)
40
41 /*
42  * Virtual to Physical Address mapping for IO devices.
43  */
44 #define AT91_VA_BASE_SYS        AT91_IO_P2V(AT91_BASE_SYS)
45 #define AT91_VA_BASE_EMAC       AT91_IO_P2V(AT91RM9200_BASE_EMAC)
46
47  /* Internal SRAM is mapped below the IO devices */
48 #define AT91_SRAM_MAX           SZ_1M
49 #define AT91_VIRT_BASE          (AT91_IO_VIRT_BASE - AT91_SRAM_MAX)
50
51 /* Serial ports */
52 #define ATMEL_MAX_UART          7               /* 6 USART3's and one DBGU port (SAM9260) */
53
54 /* External Memory Map */
55 #define AT91_CHIPSELECT_0       0x10000000
56 #define AT91_CHIPSELECT_1       0x20000000
57 #define AT91_CHIPSELECT_2       0x30000000
58 #define AT91_CHIPSELECT_3       0x40000000
59 #define AT91_CHIPSELECT_4       0x50000000
60 #define AT91_CHIPSELECT_5       0x60000000
61 #define AT91_CHIPSELECT_6       0x70000000
62 #define AT91_CHIPSELECT_7       0x80000000
63
64 /* SDRAM */
65 #define AT91_SDRAM_BASE         AT91_CHIPSELECT_1
66
67 /* Clocks */
68 #define AT91_SLOW_CLOCK         32768           /* slow clock */
69
70 #ifndef __ASSEMBLY__
71 #include <asm/io.h>
72
73 static inline unsigned int at91_sys_read(unsigned int reg_offset)
74 {
75         void __iomem *addr = (void __iomem *)AT91_VA_BASE_SYS;
76
77         return __raw_readl(addr + reg_offset);
78 }
79
80 static inline void at91_sys_write(unsigned int reg_offset, unsigned long value)
81 {
82         void __iomem *addr = (void __iomem *)AT91_VA_BASE_SYS;
83
84         __raw_writel(value, addr + reg_offset);
85 }
86 #endif
87
88 #endif