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https://github.com/brain-hackers/u-boot-brain
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2007-2008
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* Stelian Pop <stelian@popies.net>
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* Lead Tech Design <www.leadtechdesign.com>
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/at91_common.h>
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#include <asm/arch/clk.h>
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#include <asm/arch/gpio.h>
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/*
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* if CONFIG_AT91_GPIO_PULLUP ist set, keep pullups on on all
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* peripheral pins. Good to have if hardware is soldered optionally
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* or in case of SPI no slave is selected. Avoid lines to float
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* needlessly. Use a short local PUP define.
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*
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* Due to errata "TXD floats when CTS is inactive" pullups are always
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* on for TXD pins.
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*/
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#ifdef CONFIG_AT91_GPIO_PULLUP
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# define PUP CONFIG_AT91_GPIO_PULLUP
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#else
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# define PUP 0
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#endif
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void at91_serial0_hw_init(void)
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{
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at91_set_a_periph(AT91_PIO_PORTA, 6, 1); /* TXD0 */
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at91_set_a_periph(AT91_PIO_PORTA, 7, PUP); /* RXD0 */
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at91_periph_clk_enable(ATMEL_ID_USART0);
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}
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void at91_serial1_hw_init(void)
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{
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at91_set_a_periph(AT91_PIO_PORTA, 11, 1); /* TXD1 */
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at91_set_a_periph(AT91_PIO_PORTA, 12, PUP); /* RXD1 */
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at91_periph_clk_enable(ATMEL_ID_USART1);
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}
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void at91_serial2_hw_init(void)
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{
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at91_set_a_periph(AT91_PIO_PORTA, 13, 1); /* TXD2 */
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at91_set_a_periph(AT91_PIO_PORTA, 14, PUP); /* RXD2 */
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at91_periph_clk_enable(ATMEL_ID_USART2);
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}
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void at91_seriald_hw_init(void)
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{
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at91_set_a_periph(AT91_PIO_PORTA, 21, PUP); /* DRXD */
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at91_set_a_periph(AT91_PIO_PORTA, 22, 1); /* DTXD */
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at91_periph_clk_enable(ATMEL_ID_SYS);
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}
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#ifdef CONFIG_ATMEL_SPI
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void at91_spi0_hw_init(unsigned long cs_mask)
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{
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at91_set_a_periph(AT91_PIO_PORTA, 25, PUP); /* SPI0_MISO */
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at91_set_a_periph(AT91_PIO_PORTA, 26, PUP); /* SPI0_MOSI */
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at91_set_a_periph(AT91_PIO_PORTA, 27, PUP); /* SPI0_SPCK */
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at91_periph_clk_enable(ATMEL_ID_SPI);
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if (cs_mask & (1 << 0)) {
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at91_set_a_periph(AT91_PIO_PORTA, 28, 1);
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}
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if (cs_mask & (1 << 1)) {
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at91_set_b_periph(AT91_PIO_PORTB, 7, 1);
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}
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if (cs_mask & (1 << 2)) {
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at91_set_a_periph(AT91_PIO_PORTD, 8, 1);
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}
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if (cs_mask & (1 << 3)) {
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at91_set_b_periph(AT91_PIO_PORTD, 9, 1);
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}
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if (cs_mask & (1 << 4)) {
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at91_set_pio_output(AT91_PIO_PORTA, 28, 1);
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}
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if (cs_mask & (1 << 5)) {
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at91_set_pio_output(AT91_PIO_PORTB, 7, 1);
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}
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if (cs_mask & (1 << 6)) {
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at91_set_pio_output(AT91_PIO_PORTD, 8, 1);
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}
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if (cs_mask & (1 << 7)) {
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at91_set_pio_output(AT91_PIO_PORTD, 9, 1);
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}
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}
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#endif
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#ifdef CONFIG_GENERIC_ATMEL_MCI
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void at91_mci_hw_init(void)
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{
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at91_set_a_periph(AT91_PIO_PORTA, 2, 0); /* MCI CLK */
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at91_set_a_periph(AT91_PIO_PORTA, 1, 0); /* MCI CDA */
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at91_set_a_periph(AT91_PIO_PORTA, 0, 0); /* MCI DA0 */
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at91_set_a_periph(AT91_PIO_PORTA, 3, 0); /* MCI DA1 */
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at91_set_a_periph(AT91_PIO_PORTA, 4, 0); /* MCI DA2 */
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at91_set_a_periph(AT91_PIO_PORTA, 5, 0); /* MCI DA3 */
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at91_periph_clk_enable(ATMEL_ID_MCI);
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}
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#endif
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