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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-arm/] [arch-at91rm9200/] [pio.h] - Blame information for rev 1765

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1 1276 phoenix 
/*
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 * linux/include/asm-arm/arch-at91rm9200/pio.h
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 *
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 *  Copyright (c) 2003 SAN People
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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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 */
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#ifndef __ASM_ARCH_PIO_H
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#define __ASM_ARCH_PIO_H
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#include <asm/arch/hardware.h>
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static inline void AT91_CfgPIO_USART0(void) {
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        AT91_SYS->PIOA_PDR = AT91C_PA17_TXD0 | AT91C_PA18_RXD0
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                | AT91C_PA20_CTS0 | AT91C_PA21_RTS0;
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}
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static inline void AT91_CfgPIO_USART1(void) {
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        AT91_SYS->PIOB_PDR = AT91C_PB18_RI1 | AT91C_PB19_DTR1
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                | AT91C_PB20_TXD1 | AT91C_PB21_RXD1 | AT91C_PB23_DCD1
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                | AT91C_PB24_CTS1 | AT91C_PB25_DSR1 | AT91C_PB26_RTS1;
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}
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static inline void AT91_CfgPIO_USART2(void) {
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        AT91_SYS->PIOA_PDR = AT91C_PA22_RXD2 | AT91C_PA23_TXD2;
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}
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static inline void AT91_CfgPIO_USART3(void) {
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        AT91_SYS->PIOA_PDR = AT91C_PA5_TXD3 | AT91C_PA6_RXD3;
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        AT91_SYS->PIOA_BSR = AT91C_PA5_TXD3 | AT91C_PA6_RXD3;
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}
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static inline void AT91_CfgPIO_DBGU(void) {
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        AT91_SYS->PIOA_PDR = AT91C_PA31_DTXD | AT91C_PA30_DRXD;
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}
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/*
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 * Configure Ethernet for RMII mode.
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 */
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static inline void AT91_CfgPIO_EMAC_RMII(void) {
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        AT91_SYS->PIOA_PDR = AT91C_PA16_EMDIO | AT91C_PA15_EMDC | AT91C_PA14_ERXER | AT91C_PA13_ERX1
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                | AT91C_PA12_ERX0 | AT91C_PA11_ECRS_ECRSDV | AT91C_PA10_ETX1
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                | AT91C_PA9_ETX0 | AT91C_PA8_ETXEN | AT91C_PA7_ETXCK_EREFCK;
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        AT91_SYS->PIOB_PDR = AT91C_PB25_EF100 | AT91C_PB19_ERXCK;
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        AT91_SYS->PIOB_BSR = AT91C_PB25_EF100 | AT91C_PB19_ERXCK;
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}
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/*
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 * Configure Ethernet for MII mode.
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 */
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static inline void AT91_CfgPIO_EMAC_MII(void) {
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        AT91_SYS->PIOA_PDR = AT91C_PA16_EMDIO | AT91C_PA15_EMDC | AT91C_PA14_ERXER | AT91C_PA13_ERX1
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                | AT91C_PA12_ERX0 | AT91C_PA11_ECRS_ECRSDV | AT91C_PA10_ETX1
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                | AT91C_PA9_ETX0 | AT91C_PA8_ETXEN | AT91C_PA7_ETXCK_EREFCK;
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        AT91_SYS->PIOB_PDR = AT91C_PB25_EF100 | AT91C_PB19_ERXCK | AT91C_PB18_ECOL | AT91C_PB17_ERXDV
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                | AT91C_PB16_ERX3 | AT91C_PB15_ERX2 | AT91C_PB14_ETXER | AT91C_PB13_ETX3
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                | AT91C_PB12_ETX2;
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        AT91_SYS->PIOB_BSR = AT91C_PB25_EF100 | AT91C_PB19_ERXCK | AT91C_PB18_ECOL | AT91C_PB17_ERXDV
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                | AT91C_PB16_ERX3 | AT91C_PB15_ERX2 | AT91C_PB14_ETXER | AT91C_PB13_ETX3
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                | AT91C_PB12_ETX2;
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}
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/*
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 * Enable the Two-Wire interface.
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 */
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static inline void AT91_CfgPIO_TWI(void) {
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        AT91_SYS->PIOA_PDR = AT91C_PA25_TWD | AT91C_PA26_TWCK;
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        AT91_SYS->PIOA_ASR = AT91C_PA25_TWD | AT91C_PA26_TWCK;
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}
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/*
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 * Enable the Serial Peripheral Interface.
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 */
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static inline void AT91_CfgPIO_SPI(void) {
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        AT91_SYS->PIOA_PDR = AT91C_PA0_MISO | AT91C_PA1_MOSI | AT91C_PA2_SPCK;
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}
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static inline void AT91_CfgPIO_SPI_CS0(void) {
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        AT91_SYS->PIOA_PDR = AT91C_PA3_NPCS0;
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}
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static inline void AT91_CfgPIO_SPI_CS1(void) {
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        AT91_SYS->PIOA_PDR = AT91C_PA4_NPCS1;
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}
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static inline void AT91_CfgPIO_SPI_CS2(void) {
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        AT91_SYS->PIOA_PDR = AT91C_PA5_NPCS2;
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}
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static inline void AT91_CfgPIO_SPI_CS3(void) {
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        AT91_SYS->PIOA_PDR = AT91C_PA6_NPCS3;
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}
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/*
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 * Select the DataFlash card.
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 */
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static inline void AT91_CfgPIO_DataFlashCard(void) {
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        AT91_SYS->PIOB_PER = AT91C_PIO_PB7;
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        AT91_SYS->PIOB_OER = AT91C_PIO_PB7;
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        AT91_SYS->PIOB_CODR = AT91C_PIO_PB7;
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}
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/*
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 * Enable NAND Flash (SmartMedia) interface.
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 */
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static inline void AT91_CfgPIO_SmartMedia(void) {
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        /* enable PC0=SMCE, PC1=SMOE, PC3=SMWE, A21=CLE, A22=ALE */
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        AT91_SYS->PIOC_ASR = AT91C_PC0_BFCK | AT91C_PC1_BFRDY_SMOE | AT91C_PC3_BFBAA_SMWE;
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        AT91_SYS->PIOC_PDR = AT91C_PC0_BFCK | AT91C_PC1_BFRDY_SMOE | AT91C_PC3_BFBAA_SMWE;
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        /* Configure PC2 as input (signal READY of the SmartMedia) */
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        AT91_SYS->PIOC_PER = AT91C_PC2_BFAVD;   /* enable direct output enable */
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        AT91_SYS->PIOC_ODR = AT91C_PC2_BFAVD;   /* disable output */
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        /* Configure PB1 as input (signal Card Detect of the SmartMedia) */
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        AT91_SYS->PIOB_PER = AT91C_PIO_PB1;     /* enable direct output enable */
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        AT91_SYS->PIOB_ODR = AT91C_PIO_PB1;     /* disable output */
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}
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static inline int AT91_PIO_SmartMedia_RDY(void) {
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        return (AT91_SYS->PIOC_PDSR & AT91C_PIO_PC2) ? 1 : 0;
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}
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static inline int AT91_PIO_SmartMedia_CardDetect(void) {
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        return (AT91_SYS->PIOB_PDSR & AT91C_PIO_PB1) ? 1 : 0;
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}
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#endif

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