7be90a6ba9
The AT91CAP9 revC CPU has a few differences over the previous, revB CPU which was distributed in small quantities only (revA was an internal Atmel product only). This patch adds the detection routines to recognize the different AT91CAP9 revisions (based on the PMC subsystem version number), and uses them to: - activate a workaround for the external interrupts levels (on revB CPUs) - set the UDPHS_BYPASS bit (on revB CPUs) - set AT91_GPBR register address to the correct offset (0xfffffd50 on revB, 0xfffffd60 on revC) For debugging usage, the CPU revision can be found in /proc/cpuinfo on the 'Revision' line. This patch is extracted from Andrew Victor's -at91 patch (2.6.27-at91.patch) where it has been tested for the last 6 months. Signed-off-by: Stelian Pop <stelian@popies.net> Signed-off-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
128 lines
5 KiB
C
128 lines
5 KiB
C
/*
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* arch/arm/mach-at91/include/mach/at91cap9.h
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*
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* Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com>
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* Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com>
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* Copyright (C) 2007 Atmel Corporation.
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*
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* Common definitions.
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* Based on AT91CAP9 datasheet revision B (Preliminary).
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef AT91CAP9_H
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#define AT91CAP9_H
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/*
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* Peripheral identifiers/interrupts.
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*/
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#define AT91_ID_FIQ 0 /* Advanced Interrupt Controller (FIQ) */
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#define AT91_ID_SYS 1 /* System Peripherals */
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#define AT91CAP9_ID_PIOABCD 2 /* Parallel IO Controller A, B, C and D */
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#define AT91CAP9_ID_MPB0 3 /* MP Block Peripheral 0 */
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#define AT91CAP9_ID_MPB1 4 /* MP Block Peripheral 1 */
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#define AT91CAP9_ID_MPB2 5 /* MP Block Peripheral 2 */
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#define AT91CAP9_ID_MPB3 6 /* MP Block Peripheral 3 */
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#define AT91CAP9_ID_MPB4 7 /* MP Block Peripheral 4 */
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#define AT91CAP9_ID_US0 8 /* USART 0 */
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#define AT91CAP9_ID_US1 9 /* USART 1 */
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#define AT91CAP9_ID_US2 10 /* USART 2 */
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#define AT91CAP9_ID_MCI0 11 /* Multimedia Card Interface 0 */
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#define AT91CAP9_ID_MCI1 12 /* Multimedia Card Interface 1 */
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#define AT91CAP9_ID_CAN 13 /* CAN */
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#define AT91CAP9_ID_TWI 14 /* Two-Wire Interface */
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#define AT91CAP9_ID_SPI0 15 /* Serial Peripheral Interface 0 */
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#define AT91CAP9_ID_SPI1 16 /* Serial Peripheral Interface 0 */
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#define AT91CAP9_ID_SSC0 17 /* Serial Synchronous Controller 0 */
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#define AT91CAP9_ID_SSC1 18 /* Serial Synchronous Controller 1 */
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#define AT91CAP9_ID_AC97C 19 /* AC97 Controller */
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#define AT91CAP9_ID_TCB 20 /* Timer Counter 0, 1 and 2 */
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#define AT91CAP9_ID_PWMC 21 /* Pulse Width Modulation Controller */
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#define AT91CAP9_ID_EMAC 22 /* Ethernet */
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#define AT91CAP9_ID_AESTDES 23 /* Advanced Encryption Standard, Triple DES */
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#define AT91CAP9_ID_ADC 24 /* Analog-to-Digital Converter */
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#define AT91CAP9_ID_ISI 25 /* Image Sensor Interface */
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#define AT91CAP9_ID_LCDC 26 /* LCD Controller */
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#define AT91CAP9_ID_DMA 27 /* DMA Controller */
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#define AT91CAP9_ID_UDPHS 28 /* USB High Speed Device Port */
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#define AT91CAP9_ID_UHP 29 /* USB Host Port */
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#define AT91CAP9_ID_IRQ0 30 /* Advanced Interrupt Controller (IRQ0) */
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#define AT91CAP9_ID_IRQ1 31 /* Advanced Interrupt Controller (IRQ1) */
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/*
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* User Peripheral physical base addresses.
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*/
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#define AT91CAP9_BASE_UDPHS 0xfff78000
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#define AT91CAP9_BASE_TCB0 0xfff7c000
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#define AT91CAP9_BASE_TC0 0xfff7c000
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#define AT91CAP9_BASE_TC1 0xfff7c040
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#define AT91CAP9_BASE_TC2 0xfff7c080
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#define AT91CAP9_BASE_MCI0 0xfff80000
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#define AT91CAP9_BASE_MCI1 0xfff84000
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#define AT91CAP9_BASE_TWI 0xfff88000
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#define AT91CAP9_BASE_US0 0xfff8c000
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#define AT91CAP9_BASE_US1 0xfff90000
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#define AT91CAP9_BASE_US2 0xfff94000
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#define AT91CAP9_BASE_SSC0 0xfff98000
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#define AT91CAP9_BASE_SSC1 0xfff9c000
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#define AT91CAP9_BASE_AC97C 0xfffa0000
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#define AT91CAP9_BASE_SPI0 0xfffa4000
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#define AT91CAP9_BASE_SPI1 0xfffa8000
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#define AT91CAP9_BASE_CAN 0xfffac000
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#define AT91CAP9_BASE_PWMC 0xfffb8000
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#define AT91CAP9_BASE_EMAC 0xfffbc000
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#define AT91CAP9_BASE_ADC 0xfffc0000
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#define AT91CAP9_BASE_ISI 0xfffc4000
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#define AT91_BASE_SYS 0xffffe200
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/*
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* System Peripherals (offset from AT91_BASE_SYS)
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*/
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#define AT91_ECC (0xffffe200 - AT91_BASE_SYS)
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#define AT91_BCRAMC (0xffffe400 - AT91_BASE_SYS)
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#define AT91_DDRSDRC (0xffffe600 - AT91_BASE_SYS)
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#define AT91_SMC (0xffffe800 - AT91_BASE_SYS)
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#define AT91_MATRIX (0xffffea00 - AT91_BASE_SYS)
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#define AT91_CCFG (0xffffeb10 - AT91_BASE_SYS)
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#define AT91_DMA (0xffffec00 - AT91_BASE_SYS)
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#define AT91_DBGU (0xffffee00 - AT91_BASE_SYS)
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#define AT91_AIC (0xfffff000 - AT91_BASE_SYS)
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#define AT91_PIOA (0xfffff200 - AT91_BASE_SYS)
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#define AT91_PIOB (0xfffff400 - AT91_BASE_SYS)
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#define AT91_PIOC (0xfffff600 - AT91_BASE_SYS)
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#define AT91_PIOD (0xfffff800 - AT91_BASE_SYS)
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#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
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#define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS)
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#define AT91_SHDWC (0xfffffd10 - AT91_BASE_SYS)
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#define AT91_RTT (0xfffffd20 - AT91_BASE_SYS)
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#define AT91_PIT (0xfffffd30 - AT91_BASE_SYS)
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#define AT91_WDT (0xfffffd40 - AT91_BASE_SYS)
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#define AT91_GPBR (cpu_is_at91cap9_revB() ? \
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(0xfffffd50 - AT91_BASE_SYS) : \
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(0xfffffd60 - AT91_BASE_SYS))
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#define AT91_USART0 AT91CAP9_BASE_US0
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#define AT91_USART1 AT91CAP9_BASE_US1
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#define AT91_USART2 AT91CAP9_BASE_US2
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/*
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* Internal Memory.
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*/
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#define AT91CAP9_SRAM_BASE 0x00100000 /* Internal SRAM base address */
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#define AT91CAP9_SRAM_SIZE (32 * SZ_1K) /* Internal SRAM size (32Kb) */
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#define AT91CAP9_ROM_BASE 0x00400000 /* Internal ROM base address */
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#define AT91CAP9_ROM_SIZE (32 * SZ_1K) /* Internal ROM size (32Kb) */
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#define AT91CAP9_LCDC_BASE 0x00500000 /* LCD Controller */
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#define AT91CAP9_UDPHS_FIFO 0x00600000 /* USB High Speed Device Port */
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#define AT91CAP9_UHP_BASE 0x00700000 /* USB Host controller */
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#define CONFIG_DRAM_BASE AT91_CHIPSELECT_6
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#endif
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