patch-2.4.22 linux-2.4.22/include/asm-arm/arch-at91rm9200/pio.h

• Lines: 134
• Date: 2003-08-25 04:44:43.000000000 -0700
• Orig file: linux-2.4.21/include/asm-arm/arch-at91rm9200/pio.h
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.21/include/asm-arm/arch-at91rm9200/pio.h linux-2.4.22/include/asm-arm/arch-at91rm9200/pio.h
@@ -0,0 +1,133 @@
+/*
+ * linux/include/asm-arm/arch-at91rm9200/pio.h
+ *
+ *  Copyright (c) 2003 SAN People
+ *
+ * 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_PIO_H
+#define __ASM_ARCH_PIO_H
+
+#include <asm/arch/hardware.h>
+
+static inline void AT91_CfgPIO_USART0(void) {
+	AT91_SYS->PIOA_PDR = AT91C_PA17_TXD0 | AT91C_PA18_RXD0
+		| AT91C_PA20_CTS0 | AT91C_PA21_RTS0;
+}
+
+static inline void AT91_CfgPIO_USART1(void) {
+	AT91_SYS->PIOB_PDR = AT91C_PB18_RI1 | AT91C_PB19_DTR1
+		| AT91C_PB20_TXD1 | AT91C_PB21_RXD1 | AT91C_PB23_DCD1
+		| AT91C_PB24_CTS1 | AT91C_PB25_DSR1 | AT91C_PB26_RTS1;
+}
+
+static inline void AT91_CfgPIO_USART2(void) {
+	AT91_SYS->PIOA_PDR = AT91C_PA22_RXD2 | AT91C_PA23_TXD2;
+}
+
+static inline void AT91_CfgPIO_USART3(void) {
+	AT91_SYS->PIOA_PDR = AT91C_PA5_TXD3 | AT91C_PA6_RXD3;
+	AT91_SYS->PIOA_BSR = AT91C_PA5_TXD3 | AT91C_PA6_RXD3;
+}
+
+static inline void AT91_CfgPIO_DBGU(void) {
+	AT91_SYS->PIOA_PDR = AT91C_PA31_DTXD | AT91C_PA30_DRXD;
+}
+
+/*
+ * Configure Ethernet for RMII mode.
+ */
+static inline void AT91_CfgPIO_EMAC_RMII(void) {
+	AT91_SYS->PIOA_PDR = AT91C_PA16_EMDIO | AT91C_PA15_EMDC | AT91C_PA14_ERXER | AT91C_PA13_ERX1
+		| AT91C_PA12_ERX0 | AT91C_PA11_ECRS_ECRSDV | AT91C_PA10_ETX1
+		| AT91C_PA9_ETX0 | AT91C_PA8_ETXEN | AT91C_PA7_ETXCK_EREFCK;
+	AT91_SYS->PIOB_PDR = AT91C_PB25_EF100 | AT91C_PB19_ERXCK;
+	AT91_SYS->PIOB_BSR = AT91C_PB25_EF100 | AT91C_PB19_ERXCK;
+}
+
+/*
+ * Configure Ethernet for MII mode.
+ */
+static inline void AT91_CfgPIO_EMAC_MII(void) {
+	AT91_SYS->PIOA_PDR = AT91C_PA16_EMDIO | AT91C_PA15_EMDC | AT91C_PA14_ERXER | AT91C_PA13_ERX1
+		| AT91C_PA12_ERX0 | AT91C_PA11_ECRS_ECRSDV | AT91C_PA10_ETX1
+		| AT91C_PA9_ETX0 | AT91C_PA8_ETXEN | AT91C_PA7_ETXCK_EREFCK;
+	AT91_SYS->PIOB_PDR = AT91C_PB25_EF100 | AT91C_PB19_ERXCK | AT91C_PB18_ECOL | AT91C_PB17_ERXDV
+		| AT91C_PB16_ERX3 | AT91C_PB15_ERX2 | AT91C_PB14_ETXER | AT91C_PB13_ETX3
+		| AT91C_PB12_ETX2;
+	AT91_SYS->PIOB_BSR = AT91C_PB25_EF100 | AT91C_PB19_ERXCK | AT91C_PB18_ECOL | AT91C_PB17_ERXDV
+		| AT91C_PB16_ERX3 | AT91C_PB15_ERX2 | AT91C_PB14_ETXER | AT91C_PB13_ETX3
+		| AT91C_PB12_ETX2;
+}
+
+/*
+ * Enable the Two-Wire interface.
+ */
+static inline void AT91_CfgPIO_TWI(void) {
+	AT91_SYS->PIOA_PDR = AT91C_PA25_TWD | AT91C_PA26_TWCK;
+	AT91_SYS->PIOA_ASR = AT91C_PA25_TWD | AT91C_PA26_TWCK;
+}
+
+/*
+ * Enable the Serial Peripheral Interface.
+ */
+static inline void AT91_CfgPIO_SPI(void) {
+	AT91_SYS->PIOA_PDR = AT91C_PA0_MISO | AT91C_PA1_MOSI | AT91C_PA2_SPCK;
+}
+
+static inline void AT91_CfgPIO_SPI_CS0(void) {
+	AT91_SYS->PIOA_PDR = AT91C_PA3_NPCS0;
+}
+
+static inline void AT91_CfgPIO_SPI_CS1(void) {
+	AT91_SYS->PIOA_PDR = AT91C_PA4_NPCS1;
+}
+
+static inline void AT91_CfgPIO_SPI_CS2(void) {
+	AT91_SYS->PIOA_PDR = AT91C_PA5_NPCS2;
+}
+
+static inline void AT91_CfgPIO_SPI_CS3(void) {
+	AT91_SYS->PIOA_PDR = AT91C_PA6_NPCS3;
+}
+
+/*
+ * Select the DataFlash card.
+ */
+static inline void AT91_CfgPIO_DataFlashCard(void) {
+	AT91_SYS->PIOB_PER = AT91C_PIO_PB7;
+	AT91_SYS->PIOB_OER = AT91C_PIO_PB7;
+	AT91_SYS->PIOB_CODR = AT91C_PIO_PB7;
+}
+
+/*
+ * Enable NAND Flash (SmartMedia) interface.
+ */
+static inline void AT91_CfgPIO_SmartMedia(void) {
+	/* enable PC0=SMCE, PC1=SMOE, PC3=SMWE, A21=CLE, A22=ALE */
+	AT91_SYS->PIOC_ASR = AT91C_PC0_BFCK | AT91C_PC1_BFRDY_SMOE | AT91C_PC3_BFBAA_SMWE;
+	AT91_SYS->PIOC_PDR = AT91C_PC0_BFCK | AT91C_PC1_BFRDY_SMOE | AT91C_PC3_BFBAA_SMWE;
+
+	/* Configure PC2 as input (signal READY of the SmartMedia) */
+	AT91_SYS->PIOC_PER = AT91C_PC2_BFAVD;	/* enable direct output enable */
+	AT91_SYS->PIOC_ODR = AT91C_PC2_BFAVD;	/* disable output */
+
+	/* Configure PB1 as input (signal Card Detect of the SmartMedia) */
+	AT91_SYS->PIOB_PER = AT91C_PIO_PB1;	/* enable direct output enable */
+	AT91_SYS->PIOB_ODR = AT91C_PIO_PB1;	/* disable output */
+}
+
+static inline int AT91_PIO_SmartMedia_RDY(void) {
+	return (AT91_SYS->PIOC_PDSR & AT91C_PIO_PC2) ? 1 : 0;
+}
+
+static inline int AT91_PIO_SmartMedia_CardDetect(void) {
+	return (AT91_SYS->PIOB_PDSR & AT91C_PIO_PB1) ? 1 : 0;
+}
+
+#endif