mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-24 02:48:51 +09:00
![Rajeshwari Shinde](/assets/img/avatar_default.png)
Api is added to decode peripheral id based on the interrupt number of the peripheral. Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/*
|
|
* Copyright (C) 2012 Samsung Electronics
|
|
* Abhilash Kesavan <a.kesavan@samsung.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., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef __ASM_ARM_ARCH_PINMUX_H
|
|
#define __ASM_ARM_ARCH_PINMUX_H
|
|
|
|
#include "periph.h"
|
|
|
|
/*
|
|
* Flags for setting specific configarations of peripherals.
|
|
* List will grow with support for more devices getting added.
|
|
*/
|
|
enum {
|
|
PINMUX_FLAG_NONE = 0x00000000,
|
|
|
|
/* Flags for eMMC */
|
|
PINMUX_FLAG_8BIT_MODE = 1 << 0, /* SDMMC 8-bit mode */
|
|
|
|
/* Flags for SROM controller */
|
|
PINMUX_FLAG_BANK = 3 << 0, /* bank number (0-3) */
|
|
PINMUX_FLAG_16BIT = 1 << 2, /* 16-bit width */
|
|
};
|
|
|
|
/**
|
|
* Configures the pinmux for a particular peripheral.
|
|
*
|
|
* Each gpio can be configured in many different ways (4 bits on exynos)
|
|
* such as "input", "output", "special function", "external interrupt"
|
|
* etc. This function will configure the peripheral pinmux along with
|
|
* pull-up/down and drive strength.
|
|
*
|
|
* @param peripheral peripheral to be configured
|
|
* @param flags configure flags
|
|
* @return 0 if ok, -1 on error (e.g. unsupported peripheral)
|
|
*/
|
|
int exynos_pinmux_config(int peripheral, int flags);
|
|
|
|
/**
|
|
* Decode the peripheral id using the interrpt numbers.
|
|
*
|
|
* @param blob Device tree blob
|
|
* @param node FDT I2C node to find
|
|
* @return peripheral id if ok, PERIPH_ID_NONE on error
|
|
*/
|
|
int pinmux_decode_periph_id(const void *blob, int node);
|
|
#endif
|