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
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
115 lines
2.6 KiB
115 lines
2.6 KiB
/*
|
|
* (C) Copyright 2011
|
|
* eInfochips Ltd. <www.einfochips.com>
|
|
* Written-by: Ajay Bhargav <ajay.bhargav@einfochips.com>
|
|
*
|
|
* (C) Copyright 2010
|
|
* Marvell Semiconductor <www.marvell.com>
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
* MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/io.h>
|
|
#include <asm/errno.h>
|
|
#include "mvgpio.h"
|
|
#include <asm/gpio.h>
|
|
|
|
#ifndef MV_MAX_GPIO
|
|
#define MV_MAX_GPIO 128
|
|
#endif
|
|
|
|
int gpio_request(int gp, const char *label)
|
|
{
|
|
if (gp >= MV_MAX_GPIO) {
|
|
printf("%s: Invalid GPIO requested %d\n", __func__, gp);
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void gpio_free(int gp)
|
|
{
|
|
}
|
|
|
|
void gpio_toggle_value(int gp)
|
|
{
|
|
gpio_set_value(gp, !gpio_get_value(gp));
|
|
}
|
|
|
|
int gpio_direction_input(int gp)
|
|
{
|
|
struct gpio_reg *gpio_reg_bank;
|
|
|
|
if (gp >= MV_MAX_GPIO) {
|
|
printf("%s: Invalid GPIO %d\n", __func__, gp);
|
|
return -EINVAL;
|
|
}
|
|
|
|
gpio_reg_bank = get_gpio_base(GPIO_TO_REG(gp));
|
|
writel(GPIO_TO_BIT(gp), &gpio_reg_bank->gcdr);
|
|
return 0;
|
|
}
|
|
|
|
int gpio_direction_output(int gp, int value)
|
|
{
|
|
struct gpio_reg *gpio_reg_bank;
|
|
|
|
if (gp >= MV_MAX_GPIO) {
|
|
printf("%s: Invalid GPIO %d\n", __func__, gp);
|
|
return -EINVAL;
|
|
}
|
|
|
|
gpio_reg_bank = get_gpio_base(GPIO_TO_REG(gp));
|
|
writel(GPIO_TO_BIT(gp), &gpio_reg_bank->gsdr);
|
|
gpio_set_value(gp, value);
|
|
return 0;
|
|
}
|
|
|
|
int gpio_get_value(int gp)
|
|
{
|
|
struct gpio_reg *gpio_reg_bank;
|
|
u32 gp_val;
|
|
|
|
if (gp >= MV_MAX_GPIO) {
|
|
printf("%s: Invalid GPIO %d\n", __func__, gp);
|
|
return -EINVAL;
|
|
}
|
|
|
|
gpio_reg_bank = get_gpio_base(GPIO_TO_REG(gp));
|
|
gp_val = readl(&gpio_reg_bank->gplr);
|
|
|
|
return GPIO_VAL(gp, gp_val);
|
|
}
|
|
|
|
void gpio_set_value(int gp, int value)
|
|
{
|
|
struct gpio_reg *gpio_reg_bank;
|
|
|
|
if (gp >= MV_MAX_GPIO) {
|
|
printf("%s: Invalid GPIO %d\n", __func__, gp);
|
|
return;
|
|
}
|
|
|
|
gpio_reg_bank = get_gpio_base(GPIO_TO_REG(gp));
|
|
if (value)
|
|
writel(GPIO_TO_BIT(gp), &gpio_reg_bank->gpsr);
|
|
else
|
|
writel(GPIO_TO_BIT(gp), &gpio_reg_bank->gpcr);
|
|
}
|
|
|