mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-22 09:58:52 +09:00
![Peter Griffin](/assets/img/avatar_default.png)
This patch adds basic pinmux support for the hi6220 SoC, which is found on the hikey board. Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
83 lines
1.9 KiB
C
83 lines
1.9 KiB
C
/*
|
|
* Copyright (C) 2015 Linaro
|
|
* Peter Griffin <peter.griffin@linaro.org>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef __ASM_ARM_ARCH_PINMUX_H
|
|
#define __ASM_ARM_ARCH_PINMUX_H
|
|
|
|
#include "periph.h"
|
|
|
|
|
|
/* iomg bit definition */
|
|
#define MUX_M0 0
|
|
#define MUX_M1 1
|
|
#define MUX_M2 2
|
|
#define MUX_M3 3
|
|
#define MUX_M4 4
|
|
#define MUX_M5 5
|
|
#define MUX_M6 6
|
|
#define MUX_M7 7
|
|
|
|
/* iocg bit definition */
|
|
#define PULL_MASK (3)
|
|
#define PULL_DIS (0)
|
|
#define PULL_UP (1 << 0)
|
|
#define PULL_DOWN (1 << 1)
|
|
|
|
/* drive strength definition */
|
|
#define DRIVE_MASK (7 << 4)
|
|
#define DRIVE1_02MA (0 << 4)
|
|
#define DRIVE1_04MA (1 << 4)
|
|
#define DRIVE1_08MA (2 << 4)
|
|
#define DRIVE1_10MA (3 << 4)
|
|
#define DRIVE2_02MA (0 << 4)
|
|
#define DRIVE2_04MA (1 << 4)
|
|
#define DRIVE2_08MA (2 << 4)
|
|
#define DRIVE2_10MA (3 << 4)
|
|
#define DRIVE3_04MA (0 << 4)
|
|
#define DRIVE3_08MA (1 << 4)
|
|
#define DRIVE3_12MA (2 << 4)
|
|
#define DRIVE3_16MA (3 << 4)
|
|
#define DRIVE3_20MA (4 << 4)
|
|
#define DRIVE3_24MA (5 << 4)
|
|
#define DRIVE3_32MA (6 << 4)
|
|
#define DRIVE3_40MA (7 << 4)
|
|
#define DRIVE4_02MA (0 << 4)
|
|
#define DRIVE4_04MA (2 << 4)
|
|
#define DRIVE4_08MA (4 << 4)
|
|
#define DRIVE4_10MA (6 << 4)
|
|
|
|
#define HI6220_PINMUX0_BASE 0xf7010000
|
|
#define HI6220_PINMUX1_BASE 0xf7010800
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
/* maybe more registers, but highest used is 123 */
|
|
#define REG_NUM 123
|
|
|
|
struct hi6220_pinmux0_regs {
|
|
uint32_t iomg[REG_NUM];
|
|
};
|
|
|
|
struct hi6220_pinmux1_regs {
|
|
uint32_t iocfg[REG_NUM];
|
|
};
|
|
|
|
#endif
|
|
|
|
/**
|
|
* Configures the pinmux for a particular peripheral.
|
|
*
|
|
* This function will configure the peripheral pinmux along with
|
|
* pull-up/down and drive strength.
|
|
*
|
|
* @param peripheral peripheral to be configured
|
|
* @return 0 if ok, -1 on error (e.g. unsupported peripheral)
|
|
*/
|
|
int hi6220_pinmux_config(int peripheral);
|
|
|
|
#endif
|