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