diff options
author | Andrew Victor <andrew@sanpeople.com> | 2007-02-05 13:42:07 +0300 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-02-08 17:50:56 +0300 |
commit | 9d0412680e6c7b685ee466842047bcfb924d6dc5 (patch) | |
tree | c79300964ef1aca5d24571696f95e76b37c14679 /include/asm-arm/arch-at91/hardware.h | |
parent | a93d48cc6019f84394b31d10c0d830a3b71696be (diff) | |
download | linux-9d0412680e6c7b685ee466842047bcfb924d6dc5.tar.xz |
[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories
Now that Linux includes support for the Atmel AT91SAM9260 and
AT91SAM9261 processors in addition to the original Atmel AT91RM9200
(with support for more AT91 processors pending), the "mach-at91rm9200"
and "arch-at91rm9200" directories should be renamed to indicate their
more generic nature.
The following git commands should be run BEFORE applying this patch:
git-mv arch/arm/mach-at91rm9200 arch/arm/mach-at91
git-mv include/asm-arm/arch-at91rm9200 include/asm-arm/arch-at91
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/arch-at91/hardware.h')
-rw-r--r-- | include/asm-arm/arch-at91/hardware.h | 88 |
1 files changed, 88 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..ccb7c7285b42 --- /dev/null +++ b/include/asm-arm/arch-at91/hardware.h @@ -0,0 +1,88 @@ +/* + * include/asm-arm/arch-at91/hardware.h + * + * Copyright (C) 2003 SAN People + * Copyright (C) 2003 ATMEL + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#ifndef __ASM_ARCH_HARDWARE_H +#define __ASM_ARCH_HARDWARE_H + +#include <asm/sizes.h> + +#if defined(CONFIG_ARCH_AT91RM9200) +#include <asm/arch/at91rm9200.h> +#elif defined(CONFIG_ARCH_AT91SAM9260) +#include <asm/arch/at91sam9260.h> +#elif defined(CONFIG_ARCH_AT91SAM9261) +#include <asm/arch/at91sam9261.h> +#else +#error "Unsupported AT91 processor" +#endif + + +/* + * Remap the peripherals from address 0xFFFA0000 .. 0xFFFFFFFF + * to 0xFEFA0000 .. 0xFF000000. (384Kb) + */ +#define AT91_IO_PHYS_BASE 0xFFFA0000 +#define AT91_IO_SIZE (0xFFFFFFFF - AT91_IO_PHYS_BASE + 1) +#define AT91_IO_VIRT_BASE (0xFF000000 - AT91_IO_SIZE) + + /* Convert a physical IO address to virtual IO address */ +#define AT91_IO_P2V(x) ((x) - AT91_IO_PHYS_BASE + AT91_IO_VIRT_BASE) + +/* + * Virtual to Physical Address mapping for IO devices. + */ +#define AT91_VA_BASE_SYS AT91_IO_P2V(AT91_BASE_SYS) +#define AT91_VA_BASE_EMAC AT91_IO_P2V(AT91RM9200_BASE_EMAC) + + /* Internal SRAM is mapped below the IO devices */ +#define AT91_SRAM_MAX SZ_1M +#define AT91_VIRT_BASE (AT91_IO_VIRT_BASE - AT91_SRAM_MAX) + +/* Serial ports */ +#define ATMEL_MAX_UART 7 /* 6 USART3's and one DBGU port (SAM9260) */ + +/* External Memory Map */ +#define AT91_CHIPSELECT_0 0x10000000 +#define AT91_CHIPSELECT_1 0x20000000 +#define AT91_CHIPSELECT_2 0x30000000 +#define AT91_CHIPSELECT_3 0x40000000 +#define AT91_CHIPSELECT_4 0x50000000 +#define AT91_CHIPSELECT_5 0x60000000 +#define AT91_CHIPSELECT_6 0x70000000 +#define AT91_CHIPSELECT_7 0x80000000 + +/* SDRAM */ +#define AT91_SDRAM_BASE AT91_CHIPSELECT_1 + +/* Clocks */ +#define AT91_SLOW_CLOCK 32768 /* slow clock */ + +#ifndef __ASSEMBLY__ +#include <asm/io.h> + +static inline unsigned int at91_sys_read(unsigned int reg_offset) +{ + void __iomem *addr = (void __iomem *)AT91_VA_BASE_SYS; + + return __raw_readl(addr + reg_offset); +} + +static inline void at91_sys_write(unsigned int reg_offset, unsigned long value) +{ + void __iomem *addr = (void __iomem *)AT91_VA_BASE_SYS; + + __raw_writel(value, addr + reg_offset); +} +#endif + +#endif |