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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u-boot/include/power/max17042_fg.h

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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2012 Samsung Electronics
* Lukasz Majewski <l.majewski@samsung.com>
*/
#ifndef __MAX17042_FG_H_
#define __MAX17042_FG_H_
/* MAX 17042 registers */
enum {
MAX17042_STATUS = 0x00,
MAX17042_SOCREP = 0x06,
MAX17042_VCELL = 0x09,
MAX17042_CURRENT = 0x0A,
MAX17042_AVG_CURRENT = 0x0B,
MAX17042_SOCMIX = 0x0D,
MAX17042_SOCAV = 0x0E,
MAX17042_DESIGN_CAP = 0x18,
MAX17042_AVG_VCELL = 0x19,
MAX17042_CONFIG = 0x1D,
MAX17042_VERSION = 0x21,
MAX17042_LEARNCFG = 0x28,
MAX17042_FILTERCFG = 0x29,
MAX17042_RELAXCFG = 0x2A,
MAX17042_MISCCFG = 0x2B,
MAX17042_CGAIN = 0x2E,
MAX17042_COFF = 0x2F,
MAX17042_RCOMP0 = 0x38,
MAX17042_TEMPCO = 0x39,
MAX17042_FSTAT = 0x3D,
MAX17042_MLOCKReg1 = 0x62,
MAX17042_MLOCKReg2 = 0x63,
MAX17042_MODEL1 = 0x80,
MAX17042_MODEL2 = 0x90,
MAX17042_MODEL3 = 0xA0,
MAX17042_VFOCV = 0xFB,
MAX17042_VFSOC = 0xFF,
FG_NUM_OF_REGS = 0x100,
};
#define RCOMP0 0x0060
#define TempCo 0x1015
#define MAX17042_POR (1 << 1)
#define MODEL_UNLOCK1 0x0059
#define MODEL_UNLOCK2 0x00c4
#define MODEL_LOCK1 0x0000
#define MODEL_LOCK2 0x0000
#define MAX17042_I2C_ADDR (0x6C >> 1)
int power_fg_init(unsigned char bus);
#endif /* __MAX17042_FG_H_ */