linux/include/asm-arm/arch-at91/hardware.h
sedji gaouaou 613526677a [ARM] 5130/4: Support for the at91sam9g20
Support for the at91sam9g20 : Atmel 400Mhz ARM 926ej-s SOC.

AT91sam9g20 is an evolution of the at91sam9260 with a faster clock
speed.
We created a new board for this device but based the chip support
directly on 9260 files with little updates.
Here is the chip page on Atmel wabsite:
http://atmel.com/dyn/products/product_card.asp?part_id=4337

Signed-off-by: Sedji Gaouaou <sedji.gaouaou@atmel.com>
Signed-off-by: Justin Waters <justin.waters@timesys.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-10 12:13:47 +01:00

93 lines
2.5 KiB
C

/*
* 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) || defined(CONFIG_ARCH_AT91SAM9G20)
#include <asm/arch/at91sam9260.h>
#elif defined(CONFIG_ARCH_AT91SAM9261)
#include <asm/arch/at91sam9261.h>
#elif defined(CONFIG_ARCH_AT91SAM9263)
#include <asm/arch/at91sam9263.h>
#elif defined(CONFIG_ARCH_AT91SAM9RL)
#include <asm/arch/at91sam9rl.h>
#elif defined(CONFIG_ARCH_AT91CAP9)
#include <asm/arch/at91cap9.h>
#elif defined(CONFIG_ARCH_AT91X40)
#include <asm/arch/at91x40.h>
#else
#error "Unsupported AT91 processor"
#endif
#ifdef CONFIG_MMU
/*
* Remap the peripherals from address 0xFFF78000 .. 0xFFFFFFFF
* to 0xFEF78000 .. 0xFF000000. (544Kb)
*/
#define AT91_IO_PHYS_BASE 0xFFF78000
#define AT91_IO_VIRT_BASE (0xFF000000 - AT91_IO_SIZE)
#else
/*
* Identity mapping for the non MMU case.
*/
#define AT91_IO_PHYS_BASE AT91_BASE_SYS
#define AT91_IO_VIRT_BASE AT91_IO_PHYS_BASE
#endif
#define AT91_IO_SIZE (0xFFFFFFFF - AT91_IO_PHYS_BASE + 1)
/* 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 */
#ifdef CONFIG_DRAM_BASE
#define AT91_SDRAM_BASE CONFIG_DRAM_BASE
#else
#define AT91_SDRAM_BASE AT91_CHIPSELECT_1
#endif
/* Clocks */
#define AT91_SLOW_CLOCK 32768 /* slow clock */
#endif