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[ARM] 4427/1: base Atmel at91x40 architecture defines 

Base at91x40 architecture support defines. These parts are somewhat
simpler than the ARM9 Atmel based parts.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Greg Ungerer 2007-06-04 06:45:38 +01:00 committed by Russell King
parent b54942f820
commit 7067222400
3 changed files with 65 additions and 0 deletions
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55
include/asm-arm/arch-at91/at91x40.h Normal file
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@ -0,0 +1,55 @@
/*
* include/asm-arm/arch-at91/at91x40.h
*
* (C) Copyright 2007, Greg Ungerer <gerg@snapgear.com>
*
* 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 AT91X40_H
#define AT91X40_H
/*
* IRQ list.
*/
#define AT91_ID_FIQ 0 /* FIQ */
#define AT91_ID_SYS 1 /* System Peripheral */
#define AT91X40_ID_USART0 2 /* USART port 0 */
#define AT91X40_ID_USART1 3 /* USART port 1 */
#define AT91X40_ID_TC0 4 /* Timer/Counter 0 */
#define AT91X40_ID_TC1 5 /* Timer/Counter 1*/
#define AT91X40_ID_TC2 6 /* Timer/Counter 2*/
#define AT91X40_ID_WD 7 /* Watchdog? */
#define AT91X40_ID_PIOA 8 /* Parallel IO Controller A */
#define AT91X40_ID_IRQ0 16 /* External IRQ 0 */
#define AT91X40_ID_IRQ1 17 /* External IRQ 1 */
#define AT91X40_ID_IRQ2 18 /* External IRQ 2 */
/*
* System Peripherals (offset from AT91_BASE_SYS)
*/
#define AT91_BASE_SYS 0xffc00000
#define AT91_EBI (0xffe00000 - AT91_BASE_SYS) /* External Bus Interface */
#define AT91_SF (0xfff00000 - AT91_BASE_SYS) /* Special Function */
#define AT91_USART1 (0xfffcc000 - AT91_BASE_SYS) /* USART 1 */
#define AT91_USART0 (0xfffd0000 - AT91_BASE_SYS) /* USART 0 */
#define AT91_TC (0xfffe0000 - AT91_BASE_SYS) /* Timer Counter */
#define AT91_PIOA (0xffff0000 - AT91_BASE_SYS) /* PIO Controller A */
#define AT91_PS (0xffff4000 - AT91_BASE_SYS) /* Power Save */
#define AT91_WD (0xffff8000 - AT91_BASE_SYS) /* Watchdog Timer */
#define AT91_AIC (0xfffff000 - AT91_BASE_SYS) /* Advanced Interrupt Controller */
/*
* The AT91x40 series doesn't have a debug unit like the other AT91 parts.
* But it does have a chip identify register and extension ID, so define at
* least these here.
*/
#define AT91_DBGU_CIDR (AT91_SF + 0) /* CIDR in PS segment */
#define AT91_DBGU_EXID (AT91_SF + 4) /* EXID in PS segment */
#endif /* AT91X40_H */

5
include/asm-arm/arch-at91/cpu.h
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@ -28,6 +28,11 @@
#define ARCH_ID_AT91SAM9RL64 0x019b03a0
#define ARCH_ID_AT91M40800 0x14080044
#define ARCH_ID_AT91R40807 0x44080746
#define ARCH_ID_AT91M40807 0x14080745
#define ARCH_ID_AT91R40008 0x44000840
static inline unsigned long at91_cpu_identify(void)
{
return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION);

5
include/asm-arm/arch-at91/timex.h
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@ -42,6 +42,11 @@
#define AT91SAM9_MASTER_CLOCK 100000000
#define CLOCK_TICK_RATE (AT91SAM9_MASTER_CLOCK/16)
#elif defined(CONFIG_ARCH_AT91X40)
#define AT91X40_MASTER_CLOCK 40000000
#define CLOCK_TICK_RATE (AT91X40_MASTER_CLOCK)
#endif
#endif