diff options
Diffstat (limited to 'arch/arm/cpu/arm926ejs/at91/at91sam9261_devices.c')
-rw-r--r-- | arch/arm/cpu/arm926ejs/at91/at91sam9261_devices.c | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/arch/arm/cpu/arm926ejs/at91/at91sam9261_devices.c b/arch/arm/cpu/arm926ejs/at91/at91sam9261_devices.c deleted file mode 100644 index a445c75..0000000 --- a/arch/arm/cpu/arm926ejs/at91/at91sam9261_devices.c +++ /dev/null @@ -1,140 +0,0 @@ -/* - * (C) Copyright 2007-2008 - * Stelian Pop <stelian@popies.net> - * Lead Tech Design <www.leadtechdesign.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/at91_common.h> -#include <asm/arch/at91_pmc.h> -#include <asm/arch/gpio.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 - -void at91_serial0_hw_init(void) -{ - at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; - - at91_set_a_periph(AT91_PIO_PORTC, 8, 1); /* TXD0 */ - at91_set_a_periph(AT91_PIO_PORTC, 9, 0); /* RXD0 */ - writel(1 << ATMEL_ID_USART0, &pmc->pcer); -} - -void at91_serial1_hw_init(void) -{ - at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; - - at91_set_a_periph(AT91_PIO_PORTC, 12, 1); /* TXD1 */ - at91_set_a_periph(AT91_PIO_PORTC, 13, 0); /* RXD1 */ - writel(1 << ATMEL_ID_USART1, &pmc->pcer); -} - -void at91_serial2_hw_init(void) -{ - at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; - - at91_set_a_periph(AT91_PIO_PORTC, 14, 1); /* TXD2 */ - at91_set_a_periph(AT91_PIO_PORTC, 15, 0); /* RXD2 */ - writel(1 << ATMEL_ID_USART2, &pmc->pcer); -} - -void at91_seriald_hw_init(void) -{ - at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; - - at91_set_a_periph(AT91_PIO_PORTA, 9, 0); /* DRXD */ - at91_set_a_periph(AT91_PIO_PORTA, 10, 1); /* DTXD */ - writel(1 << ATMEL_ID_SYS, &pmc->pcer); -} - -#if defined(CONFIG_HAS_DATAFLASH) || defined(CONFIG_ATMEL_SPI) -void at91_spi0_hw_init(unsigned long cs_mask) -{ - at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; - - at91_set_a_periph(AT91_PIO_PORTA, 0, PUP); /* SPI0_MISO */ - at91_set_a_periph(AT91_PIO_PORTA, 1, PUP); /* SPI0_MOSI */ - at91_set_a_periph(AT91_PIO_PORTA, 2, PUP); /* SPI0_SPCK */ - - /* Enable clock */ - writel(1 << ATMEL_ID_SPI0, &pmc->pcer); - - if (cs_mask & (1 << 0)) { - at91_set_a_periph(AT91_PIO_PORTA, 3, 1); - } - if (cs_mask & (1 << 1)) { - at91_set_a_periph(AT91_PIO_PORTA, 4, 1); - } - if (cs_mask & (1 << 2)) { - at91_set_a_periph(AT91_PIO_PORTA, 5, 1); - } - if (cs_mask & (1 << 3)) { - at91_set_a_periph(AT91_PIO_PORTA, 6, 1); - } - if (cs_mask & (1 << 4)) { - at91_set_pio_output(AT91_PIO_PORTA, 3, 1); - } - if (cs_mask & (1 << 5)) { - at91_set_pio_output(AT91_PIO_PORTA, 4, 1); - } - if (cs_mask & (1 << 6)) { - at91_set_pio_output(AT91_PIO_PORTA, 5, 1); - } - if (cs_mask & (1 << 7)) { - at91_set_pio_output(AT91_PIO_PORTA, 6, 1); - } -} - -void at91_spi1_hw_init(unsigned long cs_mask) -{ - at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; - - at91_set_a_periph(AT91_PIO_PORTB, 30, PUP); /* SPI1_MISO */ - at91_set_a_periph(AT91_PIO_PORTB, 31, PUP); /* SPI1_MOSI */ - at91_set_a_periph(AT91_PIO_PORTB, 29, PUP); /* SPI1_SPCK */ - - /* Enable clock */ - writel(1 << ATMEL_ID_SPI1, &pmc->pcer); - - if (cs_mask & (1 << 0)) { - at91_set_a_periph(AT91_PIO_PORTB, 28, 1); - } - if (cs_mask & (1 << 1)) { - at91_set_b_periph(AT91_PIO_PORTA, 24, 1); - } - if (cs_mask & (1 << 2)) { - at91_set_b_periph(AT91_PIO_PORTA, 25, 1); - } - if (cs_mask & (1 << 3)) { - at91_set_a_periph(AT91_PIO_PORTA, 26, 1); - } - if (cs_mask & (1 << 4)) { - at91_set_pio_output(AT91_PIO_PORTB, 28, 1); - } - if (cs_mask & (1 << 5)) { - at91_set_pio_output(AT91_PIO_PORTA, 24, 1); - } - if (cs_mask & (1 << 6)) { - at91_set_pio_output(AT91_PIO_PORTA, 25, 1); - } - if (cs_mask & (1 << 7)) { - at91_set_pio_output(AT91_PIO_PORTA, 26, 1); - } -} -#endif |