diff options
Diffstat (limited to 'arch/arm/cpu/armv7/at91/at91sama5_devices.c')
| -rw-r--r-- | arch/arm/cpu/armv7/at91/at91sama5_devices.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/at91/at91sama5_devices.c b/arch/arm/cpu/armv7/at91/at91sama5_devices.c new file mode 100644 index 0000000000..a784d8608d --- /dev/null +++ b/arch/arm/cpu/armv7/at91/at91sama5_devices.c @@ -0,0 +1,125 @@ +/* + * (C) Copyright 2007-2008 + * Stelian Pop <stelian@popies.net> + * Lead Tech Design <www.leadtechdesign.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/arch/at91_common.h> +#include <asm/arch/at91_pmc.h> +#include <asm/arch/gpio.h> +#include <asm/io.h> + +/* + * if CONFIG_AT91_GPIO_PULLUP ist set, keep pullups on on all + * peripheral pins. Good to have if hardware is soldered optionally + * or in case of SPI no slave is selected. Avoid lines to float + * needlessly. Use a short local PUP define. + * + * Due to errata "TXD floats when CTS is inactive" pullups are always + * on for TXD pins. + */ +#ifdef CONFIG_AT91_GPIO_PULLUP +# define PUP CONFIG_AT91_GPIO_PULLUP +#else +# define PUP 0 +#endif + +#if 0 +void at91_serial0_hw_init(void) +{ + at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; + + at91_set_a_periph(AT91_PIO_PORTB, 19, 1); /* TXD0 */ + at91_set_a_periph(AT91_PIO_PORTB, 18, PUP); /* RXD0 */ + writel(1 << ATMEL_ID_USART0, &pmc->pcer); +} +#endif + +void at91_serial1_hw_init(void) +{ + at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; + + at91_set_a_periph(AT91_PIO_PORTB, 28, 0); /* TXD1 */ + at91_set_a_periph(AT91_PIO_PORTB, 29, PUP); /* RXD1 */ + writel(1 << ATMEL_ID_USART1, &pmc->pcer); +} + +#if 0 +void at91_serial2_hw_init(void) +{ + at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; + + at91_set_a_periph(AT91_PIO_PORTD, 6, 1); /* TXD2 */ + at91_set_a_periph(AT91_PIO_PORTD, 7, PUP); /* RXD2 */ + writel(1 << ATMEL_ID_USART2, &pmc->pcer); +} +#endif + +void at91_seriald_hw_init(void) +{ + at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; + + at91_set_a_periph(AT91_PIO_PORTB, 30, 0); /* DRXD */ + at91_set_a_periph(AT91_PIO_PORTB, 31, 1); /* DTXD */ + writel(1 << ATMEL_ID_SYS, &pmc->pcer); +} + +#ifdef CONFIG_MACB +void at91_macb_hw_init(void) +{ + at91_set_a_periph(AT91_PIO_PORTC, 7, 0); /* ETXCK_EREFCK */ + at91_set_a_periph(AT91_PIO_PORTC, 5, 0); /* ERXDV */ + at91_set_a_periph(AT91_PIO_PORTC, 2, 0); /* ERX0 */ + at91_set_a_periph(AT91_PIO_PORTC, 3, 0); /* ERX1 */ + at91_set_a_periph(AT91_PIO_PORTC, 6, 0); /* ERXER */ + at91_set_a_periph(AT91_PIO_PORTC, 4, 0); /* ETXEN */ + at91_set_a_periph(AT91_PIO_PORTC, 0, 0); /* ETX0 */ + at91_set_a_periph(AT91_PIO_PORTC, 1, 0); /* ETX1 */ + at91_set_a_periph(AT91_PIO_PORTC, 9, 0); /* EMDIO */ + at91_set_a_periph(AT91_PIO_PORTC, 8, 0); /* EMDC */ +} +#endif + +#ifdef CONFIG_GMACB +void at91_gmacb_hw_init(void) +{ + at91_set_a_periph(AT91_PIO_PORTB, 0, 0); /* GTX0 */ + at91_set_a_periph(AT91_PIO_PORTB, 1, 0); /* GTX1 */ + at91_set_a_periph(AT91_PIO_PORTB, 2, 0); /* GTX2 */ + at91_set_a_periph(AT91_PIO_PORTB, 3, 0); /* GTX3 */ + at91_set_a_periph(AT91_PIO_PORTB, 4, 0); /* GRX0 */ + at91_set_a_periph(AT91_PIO_PORTB, 5, 0); /* GRX1 */ + at91_set_a_periph(AT91_PIO_PORTB, 6, 0); /* GRX2 */ + at91_set_a_periph(AT91_PIO_PORTB, 7, 0); /* GRX3 */ + at91_set_a_periph(AT91_PIO_PORTB, 8, 0); /* GTXCK */ + at91_set_a_periph(AT91_PIO_PORTB, 9, 0); /* GTXEN */ + at91_set_a_periph(AT91_PIO_PORTB, 10, 0); /* GTXER */ + at91_set_a_periph(AT91_PIO_PORTB, 11, 0); /* GRXCK */ + at91_set_a_periph(AT91_PIO_PORTB, 12, 0); /* GRXDV */ + at91_set_a_periph(AT91_PIO_PORTB, 13, 0); /* GRXER */ + at91_set_a_periph(AT91_PIO_PORTB, 14, 0); /* GCRS */ + at91_set_a_periph(AT91_PIO_PORTB, 15, 0); /* GCOL */ + at91_set_a_periph(AT91_PIO_PORTB, 16, 0); /* GMDC */ + at91_set_a_periph(AT91_PIO_PORTB, 17, 0); /* GMDIO */ + at91_set_a_periph(AT91_PIO_PORTB, 18, 0); /* G125CK */ +} +#endif |