mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-05 12:45:42 +00:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
/*
|
|
* Copyright (C) 2006, 2008 Atmel Corporation
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
#include <common.h>
|
|
|
|
#include <asm/io.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include <asm/arch/gpio.h>
|
|
|
|
void portmux_select_peripheral(void *port, unsigned long pin_mask,
|
|
enum portmux_function func, unsigned long flags)
|
|
{
|
|
if (flags & PORTMUX_PULL_UP)
|
|
pio_writel(port, PUER, pin_mask);
|
|
else
|
|
pio_writel(port, PUDR, pin_mask);
|
|
|
|
switch (func) {
|
|
case PORTMUX_FUNC_A:
|
|
pio_writel(port, ASR, pin_mask);
|
|
break;
|
|
case PORTMUX_FUNC_B:
|
|
pio_writel(port, BSR, pin_mask);
|
|
break;
|
|
}
|
|
|
|
pio_writel(port, PDR, pin_mask);
|
|
}
|
|
|
|
void portmux_select_gpio(void *port, unsigned long pin_mask,
|
|
unsigned long flags)
|
|
{
|
|
if (flags & PORTMUX_PULL_UP)
|
|
pio_writel(port, PUER, pin_mask);
|
|
else
|
|
pio_writel(port, PUDR, pin_mask);
|
|
|
|
if (flags & PORTMUX_OPEN_DRAIN)
|
|
pio_writel(port, MDER, pin_mask);
|
|
else
|
|
pio_writel(port, MDDR, pin_mask);
|
|
|
|
if (flags & PORTMUX_DIR_OUTPUT) {
|
|
if (flags & PORTMUX_INIT_HIGH)
|
|
pio_writel(port, SODR, pin_mask);
|
|
else
|
|
pio_writel(port, CODR, pin_mask);
|
|
pio_writel(port, OER, pin_mask);
|
|
} else {
|
|
pio_writel(port, ODR, pin_mask);
|
|
}
|
|
|
|
pio_writel(port, PER, pin_mask);
|
|
}
|
|
|
|
void pio_set_output_value(unsigned int pin, int value)
|
|
{
|
|
void *port = pio_pin_to_port(pin);
|
|
|
|
if (!port)
|
|
panic("Invalid GPIO pin %u\n", pin);
|
|
|
|
__pio_set_output_value(port, pin & 0x1f, value);
|
|
}
|
|
|
|
int pio_get_input_value(unsigned int pin)
|
|
{
|
|
void *port = pio_pin_to_port(pin);
|
|
|
|
if (!port)
|
|
panic("Invalid GPIO pin %u\n", pin);
|
|
|
|
return __pio_get_input_value(port, pin & 0x1f);
|
|
}
|