diff options
Diffstat (limited to 'include/asm-arm/arch-at91/hardware.h')
-rw-r--r-- | include/asm-arm/arch-at91/hardware.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/include/asm-arm/arch-at91/hardware.h b/include/asm-arm/arch-at91/hardware.h new file mode 100644 index 000000000000..28133e0154dd --- /dev/null +++ b/include/asm-arm/arch-at91/hardware.h | |||
@@ -0,0 +1,90 @@ | |||
1 | /* | ||
2 | * include/asm-arm/arch-at91/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 | #elif defined(CONFIG_ARCH_AT91SAM9263) | ||
26 | #include <asm/arch/at91sam9263.h> | ||
27 | #else | ||
28 | #error "Unsupported AT91 processor" | ||
29 | #endif | ||
30 | |||
31 | |||
32 | /* | ||
33 | * Remap the peripherals from address 0xFFF78000 .. 0xFFFFFFFF | ||
34 | * to 0xFEF78000 .. 0xFF000000. (544Kb) | ||
35 | */ | ||
36 | #define AT91_IO_PHYS_BASE 0xFFF78000 | ||
37 | #define AT91_IO_SIZE (0xFFFFFFFF - AT91_IO_PHYS_BASE + 1) | ||
38 | #define AT91_IO_VIRT_BASE (0xFF000000 - AT91_IO_SIZE) | ||
39 | |||
40 | /* Convert a physical IO address to virtual IO address */ | ||
41 | #define AT91_IO_P2V(x) ((x) - AT91_IO_PHYS_BASE + AT91_IO_VIRT_BASE) | ||
42 | |||
43 | /* | ||
44 | * Virtual to Physical Address mapping for IO devices. | ||
45 | */ | ||
46 | #define AT91_VA_BASE_SYS AT91_IO_P2V(AT91_BASE_SYS) | ||
47 | #define AT91_VA_BASE_EMAC AT91_IO_P2V(AT91RM9200_BASE_EMAC) | ||
48 | |||
49 | /* Internal SRAM is mapped below the IO devices */ | ||
50 | #define AT91_SRAM_MAX SZ_1M | ||
51 | #define AT91_VIRT_BASE (AT91_IO_VIRT_BASE - AT91_SRAM_MAX) | ||
52 | |||
53 | /* Serial ports */ | ||
54 | #define ATMEL_MAX_UART 7 /* 6 USART3's and one DBGU port (SAM9260) */ | ||
55 | |||
56 | /* External Memory Map */ | ||
57 | #define AT91_CHIPSELECT_0 0x10000000 | ||
58 | #define AT91_CHIPSELECT_1 0x20000000 | ||
59 | #define AT91_CHIPSELECT_2 0x30000000 | ||
60 | #define AT91_CHIPSELECT_3 0x40000000 | ||
61 | #define AT91_CHIPSELECT_4 0x50000000 | ||
62 | #define AT91_CHIPSELECT_5 0x60000000 | ||
63 | #define AT91_CHIPSELECT_6 0x70000000 | ||
64 | #define AT91_CHIPSELECT_7 0x80000000 | ||
65 | |||
66 | /* SDRAM */ | ||
67 | #define AT91_SDRAM_BASE AT91_CHIPSELECT_1 | ||
68 | |||
69 | /* Clocks */ | ||
70 | #define AT91_SLOW_CLOCK 32768 /* slow clock */ | ||
71 | |||
72 | #ifndef __ASSEMBLY__ | ||
73 | #include <asm/io.h> | ||
74 | |||
75 | static inline unsigned int at91_sys_read(unsigned int reg_offset) | ||
76 | { | ||
77 | void __iomem *addr = (void __iomem *)AT91_VA_BASE_SYS; | ||
78 | |||
79 | return __raw_readl(addr + reg_offset); | ||
80 | } | ||
81 | |||
82 | static inline void at91_sys_write(unsigned int reg_offset, unsigned long value) | ||
83 | { | ||
84 | void __iomem *addr = (void __iomem *)AT91_VA_BASE_SYS; | ||
85 | |||
86 | __raw_writel(value, addr + reg_offset); | ||
87 | } | ||
88 | #endif | ||
89 | |||
90 | #endif | ||