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u-boot/arch/arm/mach-at91/arm926ejs/at91sam9260_devices.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
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>
2018-05-07 09:34:12 -04:00

226 lines
6.6 KiB
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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2007-2008
* Stelian Pop <stelian@popies.net>
* Lead Tech Design <www.leadtechdesign.com>
*/
#include <common.h>
#include <dm.h>
#include <asm/io.h>
#include <asm/arch/at91sam9260_matrix.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/at91sam9_sdramc.h>
#include <asm/arch/clk.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_set_a_periph(AT91_PIO_PORTB, 4, 1); /* TXD0 */
at91_set_a_periph(AT91_PIO_PORTB, 5, PUP); /* RXD0 */
at91_periph_clk_enable(ATMEL_ID_USART0);
}
void at91_serial1_hw_init(void)
{
at91_set_a_periph(AT91_PIO_PORTB, 6, 1); /* TXD1 */
at91_set_a_periph(AT91_PIO_PORTB, 7, PUP); /* RXD1 */
at91_periph_clk_enable(ATMEL_ID_USART1);
}
void at91_serial2_hw_init(void)
{
at91_set_a_periph(AT91_PIO_PORTB, 8, 1); /* TXD2 */
at91_set_a_periph(AT91_PIO_PORTB, 9, PUP); /* RXD2 */
at91_periph_clk_enable(ATMEL_ID_USART2);
}
void at91_seriald_hw_init(void)
{
at91_set_a_periph(AT91_PIO_PORTB, 14, PUP); /* DRXD */
at91_set_a_periph(AT91_PIO_PORTB, 15, 1); /* DTXD */
at91_periph_clk_enable(ATMEL_ID_SYS);
}
#ifdef CONFIG_ATMEL_SPI
void at91_spi0_hw_init(unsigned long cs_mask)
{
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 */
at91_periph_clk_enable(ATMEL_ID_SPI0);
if (cs_mask & (1 << 0)) {
at91_set_a_periph(AT91_PIO_PORTA, 3, 1);
}
if (cs_mask & (1 << 1)) {
at91_set_b_periph(AT91_PIO_PORTC, 11, 1);
}
if (cs_mask & (1 << 2)) {
at91_set_b_periph(AT91_PIO_PORTC, 16, 1);
}
if (cs_mask & (1 << 3)) {
at91_set_b_periph(AT91_PIO_PORTC, 17, 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_PORTC, 11, 1);
}
if (cs_mask & (1 << 6)) {
at91_set_pio_output(AT91_PIO_PORTC, 16, 1);
}
if (cs_mask & (1 << 7)) {
at91_set_pio_output(AT91_PIO_PORTC, 17, 1);
}
}
void at91_spi1_hw_init(unsigned long cs_mask)
{
at91_set_a_periph(AT91_PIO_PORTB, 0, PUP); /* SPI1_MISO */
at91_set_a_periph(AT91_PIO_PORTB, 1, PUP); /* SPI1_MOSI */
at91_set_a_periph(AT91_PIO_PORTB, 2, PUP); /* SPI1_SPCK */
at91_periph_clk_enable(ATMEL_ID_SPI1);
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_PORTC, 5, 1);
}
if (cs_mask & (1 << 2)) {
at91_set_b_periph(AT91_PIO_PORTC, 4, 1);
}
if (cs_mask & (1 << 3)) {
at91_set_b_periph(AT91_PIO_PORTC, 3, 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_PORTC, 5, 1);
}
if (cs_mask & (1 << 6)) {
at91_set_pio_output(AT91_PIO_PORTC, 4, 1);
}
if (cs_mask & (1 << 7)) {
at91_set_pio_output(AT91_PIO_PORTC, 3, 1);
}
}
#endif
#ifdef CONFIG_MACB
void at91_macb_hw_init(void)
{
at91_periph_clk_enable(ATMEL_ID_EMAC0);
at91_set_a_periph(AT91_PIO_PORTA, 19, 0); /* ETXCK_EREFCK */
at91_set_a_periph(AT91_PIO_PORTA, 17, 0); /* ERXDV */
at91_set_a_periph(AT91_PIO_PORTA, 14, 0); /* ERX0 */
at91_set_a_periph(AT91_PIO_PORTA, 15, 0); /* ERX1 */
at91_set_a_periph(AT91_PIO_PORTA, 18, 0); /* ERXER */
at91_set_a_periph(AT91_PIO_PORTA, 16, 0); /* ETXEN */
at91_set_a_periph(AT91_PIO_PORTA, 12, 0); /* ETX0 */
at91_set_a_periph(AT91_PIO_PORTA, 13, 0); /* ETX1 */
at91_set_a_periph(AT91_PIO_PORTA, 21, 0); /* EMDIO */
at91_set_a_periph(AT91_PIO_PORTA, 20, 0); /* EMDC */
#ifndef CONFIG_RMII
at91_set_b_periph(AT91_PIO_PORTA, 28, 0); /* ECRS */
at91_set_b_periph(AT91_PIO_PORTA, 29, 0); /* ECOL */
at91_set_b_periph(AT91_PIO_PORTA, 25, 0); /* ERX2 */
at91_set_b_periph(AT91_PIO_PORTA, 26, 0); /* ERX3 */
at91_set_b_periph(AT91_PIO_PORTA, 27, 0); /* ERXCK */
#if defined(CONFIG_AT91SAM9260EK)
/*
* use PA10, PA11 for ETX2, ETX3.
* PA23 and PA24 are for TWI EEPROM
*/
at91_set_b_periph(AT91_PIO_PORTA, 10, 0); /* ETX2 */
at91_set_b_periph(AT91_PIO_PORTA, 11, 0); /* ETX3 */
#else
at91_set_b_periph(AT91_PIO_PORTA, 23, 0); /* ETX2 */
at91_set_b_periph(AT91_PIO_PORTA, 24, 0); /* ETX3 */
#if defined(CONFIG_AT91SAM9G20)
/* 9G20 BOOT ROM initializes those pins to multi-drive, undo that */
at91_set_pio_multi_drive(AT91_PIO_PORTA, 23, 0);
at91_set_pio_multi_drive(AT91_PIO_PORTA, 24, 0);
#endif
#endif
at91_set_b_periph(AT91_PIO_PORTA, 22, 0); /* ETXER */
#endif
}
#endif
#if defined(CONFIG_GENERIC_ATMEL_MCI)
void at91_mci_hw_init(void)
{
at91_periph_clk_enable(ATMEL_ID_MCI);
at91_set_a_periph(AT91_PIO_PORTA, 8, 1); /* MCCK */
#if defined(CONFIG_ATMEL_MCI_PORTB)
at91_set_b_periph(AT91_PIO_PORTA, 1, 1); /* MCCDB */
at91_set_b_periph(AT91_PIO_PORTA, 0, 1); /* MCDB0 */
at91_set_b_periph(AT91_PIO_PORTA, 5, 1); /* MCDB1 */
at91_set_b_periph(AT91_PIO_PORTA, 4, 1); /* MCDB2 */
at91_set_b_periph(AT91_PIO_PORTA, 3, 1); /* MCDB3 */
#else
at91_set_a_periph(AT91_PIO_PORTA, 7, 1); /* MCCDA */
at91_set_a_periph(AT91_PIO_PORTA, 6, 1); /* MCDA0 */
at91_set_a_periph(AT91_PIO_PORTA, 9, 1); /* MCDA1 */
at91_set_a_periph(AT91_PIO_PORTA, 10, 1); /* MCDA2 */
at91_set_a_periph(AT91_PIO_PORTA, 11, 1); /* MCDA3 */
#endif
}
#endif
void at91_sdram_hw_init(void)
{
at91_set_a_periph(AT91_PIO_PORTC, 16, 0);
at91_set_a_periph(AT91_PIO_PORTC, 17, 0);
at91_set_a_periph(AT91_PIO_PORTC, 18, 0);
at91_set_a_periph(AT91_PIO_PORTC, 19, 0);
at91_set_a_periph(AT91_PIO_PORTC, 20, 0);
at91_set_a_periph(AT91_PIO_PORTC, 21, 0);
at91_set_a_periph(AT91_PIO_PORTC, 22, 0);
at91_set_a_periph(AT91_PIO_PORTC, 23, 0);
at91_set_a_periph(AT91_PIO_PORTC, 24, 0);
at91_set_a_periph(AT91_PIO_PORTC, 25, 0);
at91_set_a_periph(AT91_PIO_PORTC, 26, 0);
at91_set_a_periph(AT91_PIO_PORTC, 27, 0);
at91_set_a_periph(AT91_PIO_PORTC, 28, 0);
at91_set_a_periph(AT91_PIO_PORTC, 29, 0);
at91_set_a_periph(AT91_PIO_PORTC, 30, 0);
at91_set_a_periph(AT91_PIO_PORTC, 31, 0);
}
/* Platform data for the GPIOs */
static const struct at91_port_platdata at91sam9260_plat[] = {
{ ATMEL_BASE_PIOA, "PA" },
{ ATMEL_BASE_PIOB, "PB" },
{ ATMEL_BASE_PIOC, "PC" },
};
U_BOOT_DEVICES(at91sam9260_gpios) = {
{ "gpio_at91", &at91sam9260_plat[0] },
{ "gpio_at91", &at91sam9260_plat[1] },
{ "gpio_at91", &at91sam9260_plat[2] },
};
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