diff options
Diffstat (limited to 'arch/arm/mach-at91/arm926ejs/at91sam9m10g45_devices.c')
| -rw-r--r-- | arch/arm/mach-at91/arm926ejs/at91sam9m10g45_devices.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/arm926ejs/at91sam9m10g45_devices.c b/arch/arm/mach-at91/arm926ejs/at91sam9m10g45_devices.c new file mode 100644 index 0000000000..0e6c0da1bd --- /dev/null +++ b/arch/arm/mach-at91/arm926ejs/at91sam9m10g45_devices.c @@ -0,0 +1,184 @@ +/* + * (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/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 + +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); +} + +void at91_serial1_hw_init(void) +{ + at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; + + at91_set_a_periph(AT91_PIO_PORTB, 4, 1); /* TXD1 */ + at91_set_a_periph(AT91_PIO_PORTB, 5, PUP); /* 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_PORTD, 6, 1); /* TXD2 */ + at91_set_a_periph(AT91_PIO_PORTD, 7, PUP); /* 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_PORTB, 12, 0); /* DRXD */ + at91_set_a_periph(AT91_PIO_PORTB, 13, 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_PORTB, 0, PUP); /* SPI0_MISO */ + at91_set_a_periph(AT91_PIO_PORTB, 1, PUP); /* SPI0_MOSI */ + at91_set_a_periph(AT91_PIO_PORTB, 2, PUP); /* SPI0_SPCK */ + + /* Enable clock */ + writel(1 << ATMEL_ID_SPI0, &pmc->pcer); + + if (cs_mask & (1 << 0)) { + at91_set_a_periph(AT91_PIO_PORTB, 3, 1); + } + if (cs_mask & (1 << 1)) { + at91_set_b_periph(AT91_PIO_PORTB, 18, 1); + } + if (cs_mask & (1 << 2)) { + at91_set_b_periph(AT91_PIO_PORTB, 19, 1); + } + if (cs_mask & (1 << 3)) { + at91_set_b_periph(AT91_PIO_PORTD, 27, 1); + } + if (cs_mask & (1 << 4)) { + at91_set_pio_output(AT91_PIO_PORTB, 3, 1); + } + if (cs_mask & (1 << 5)) { + at91_set_pio_output(AT91_PIO_PORTB, 18, 1); + } + if (cs_mask & (1 << 6)) { + at91_set_pio_output(AT91_PIO_PORTB, 19, 1); + } + if (cs_mask & (1 << 7)) { + at91_set_pio_output(AT91_PIO_PORTD, 27, 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, 14, PUP); /* SPI1_MISO */ + at91_set_a_periph(AT91_PIO_PORTB, 15, PUP); /* SPI1_MOSI */ + at91_set_a_periph(AT91_PIO_PORTB, 16, PUP); /* SPI1_SPCK */ + + /* Enable clock */ + writel(1 << ATMEL_ID_SPI1, &pmc->pcer); + + if (cs_mask & (1 << 0)) { + at91_set_a_periph(AT91_PIO_PORTB, 17, 1); + } + if (cs_mask & (1 << 1)) { + at91_set_b_periph(AT91_PIO_PORTD, 28, 1); + } + if (cs_mask & (1 << 2)) { + at91_set_a_periph(AT91_PIO_PORTD, 18, 1); + } + if (cs_mask & (1 << 3)) { + at91_set_a_periph(AT91_PIO_PORTD, 19, 1); + } + if (cs_mask & (1 << 4)) { + at91_set_pio_output(AT91_PIO_PORTB, 17, 1); + } + if (cs_mask & (1 << 5)) { + at91_set_pio_output(AT91_PIO_PORTD, 28, 1); + } + if (cs_mask & (1 << 6)) { + at91_set_pio_output(AT91_PIO_PORTD, 18, 1); + } + if (cs_mask & (1 << 7)) { + at91_set_pio_output(AT91_PIO_PORTD, 19, 1); + } + +} +#endif + +#ifdef CONFIG_MACB +void at91_macb_hw_init(void) +{ + at91_set_a_periph(AT91_PIO_PORTA, 17, 0); /* ETXCK_EREFCK */ + at91_set_a_periph(AT91_PIO_PORTA, 15, 0); /* ERXDV */ + at91_set_a_periph(AT91_PIO_PORTA, 12, 0); /* ERX0 */ + at91_set_a_periph(AT91_PIO_PORTA, 13, 0); /* ERX1 */ + at91_set_a_periph(AT91_PIO_PORTA, 16, 0); /* ERXER */ + at91_set_a_periph(AT91_PIO_PORTA, 14, 0); /* ETXEN */ + at91_set_a_periph(AT91_PIO_PORTA, 10, 0); /* ETX0 */ + at91_set_a_periph(AT91_PIO_PORTA, 11, 0); /* ETX1 */ + at91_set_a_periph(AT91_PIO_PORTA, 19, 0); /* EMDIO */ + at91_set_a_periph(AT91_PIO_PORTA, 18, 0); /* EMDC */ +#ifndef CONFIG_RMII + at91_set_b_periph(AT91_PIO_PORTA, 29, 0); /* ECRS */ + at91_set_b_periph(AT91_PIO_PORTA, 30, 0); /* ECOL */ + at91_set_b_periph(AT91_PIO_PORTA, 8, 0); /* ERX2 */ + at91_set_b_periph(AT91_PIO_PORTA, 9, 0); /* ERX3 */ + at91_set_b_periph(AT91_PIO_PORTA, 28, 0); /* ERXCK */ + at91_set_b_periph(AT91_PIO_PORTA, 6, 0); /* ETX2 */ + at91_set_b_periph(AT91_PIO_PORTA, 7, 0); /* ETX3 */ + at91_set_b_periph(AT91_PIO_PORTA, 27, 0); /* ETXER */ +#endif +} +#endif + +#ifdef CONFIG_GENERIC_ATMEL_MCI +void at91_mci_hw_init(void) +{ + struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC; + + at91_set_a_periph(AT91_PIO_PORTA, 0, 0); /* MCI0 CLK */ + at91_set_a_periph(AT91_PIO_PORTA, 1, 0); /* MCI0 CDA */ + at91_set_a_periph(AT91_PIO_PORTA, 2, 0); /* MCI0 DA0 */ + at91_set_a_periph(AT91_PIO_PORTA, 3, 0); /* MCI0 DA1 */ + at91_set_a_periph(AT91_PIO_PORTA, 4, 0); /* MCI0 DA2 */ + at91_set_a_periph(AT91_PIO_PORTA, 5, 0); /* MCI0 DA3 */ + + /* Enable clock */ + writel(1 << ATMEL_ID_MCI0, &pmc->pcer); +} +#endif |
