upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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97 lines
1.9 KiB
97 lines
1.9 KiB
/*
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* (C) Copyright 2011
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* eInfochips Ltd. <www.einfochips.com>
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* Written-by: Ajay Bhargav <contact@8051projects.net>
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*
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* (C) Copyright 2010
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* Marvell Semiconductor <www.marvell.com>
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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 <linux/errno.h>
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#include "mvgpio.h"
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#include <asm/gpio.h>
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#ifndef MV_MAX_GPIO
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#define MV_MAX_GPIO 128
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#endif
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int gpio_request(unsigned gpio, const char *label)
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{
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if (gpio >= MV_MAX_GPIO) {
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printf("%s: Invalid GPIO requested %d\n", __func__, gpio);
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return -1;
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}
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return 0;
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}
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int gpio_free(unsigned gpio)
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{
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return 0;
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}
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int gpio_direction_input(unsigned gpio)
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{
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struct gpio_reg *gpio_reg_bank;
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if (gpio >= MV_MAX_GPIO) {
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printf("%s: Invalid GPIO %d\n", __func__, gpio);
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return -1;
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}
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gpio_reg_bank = get_gpio_base(GPIO_TO_REG(gpio));
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writel(GPIO_TO_BIT(gpio), &gpio_reg_bank->gcdr);
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return 0;
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}
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int gpio_direction_output(unsigned gpio, int value)
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{
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struct gpio_reg *gpio_reg_bank;
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if (gpio >= MV_MAX_GPIO) {
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printf("%s: Invalid GPIO %d\n", __func__, gpio);
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return -1;
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}
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gpio_reg_bank = get_gpio_base(GPIO_TO_REG(gpio));
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writel(GPIO_TO_BIT(gpio), &gpio_reg_bank->gsdr);
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gpio_set_value(gpio, value);
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return 0;
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}
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int gpio_get_value(unsigned gpio)
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{
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struct gpio_reg *gpio_reg_bank;
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u32 gpio_val;
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if (gpio >= MV_MAX_GPIO) {
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printf("%s: Invalid GPIO %d\n", __func__, gpio);
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return -1;
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}
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gpio_reg_bank = get_gpio_base(GPIO_TO_REG(gpio));
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gpio_val = readl(&gpio_reg_bank->gplr);
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return GPIO_VAL(gpio, gpio_val);
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}
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int gpio_set_value(unsigned gpio, int value)
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{
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struct gpio_reg *gpio_reg_bank;
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if (gpio >= MV_MAX_GPIO) {
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printf("%s: Invalid GPIO %d\n", __func__, gpio);
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return -1;
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}
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gpio_reg_bank = get_gpio_base(GPIO_TO_REG(gpio));
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if (value)
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writel(GPIO_TO_BIT(gpio), &gpio_reg_bank->gpsr);
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else
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writel(GPIO_TO_BIT(gpio), &gpio_reg_bank->gpcr);
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return 0;
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}
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