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/board/keymile/kmp204x/kmp204x.h

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/*
* (C) Copyright 2013 Keymile AG
* Valentin Longchamp <valentin.longchamp@keymile.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
/* QRIO GPIO ports */
#define GPIO_A 0x40
#define GPIO_B 0x60
int qrio_get_gpio(u8 port_off, u8 gpio_nr);
void qrio_set_opendrain_gpio(u8 port_off, u8 gpio_nr, u8 val);
void qrio_set_gpio(u8 port_off, u8 gpio_nr, bool value);
void qrio_gpio_direction_output(u8 port_off, u8 gpio_nr, bool value);
void qrio_gpio_direction_input(u8 port_off, u8 gpio_nr);
#define PRSTCFG_POWUP_UNIT_CORE_RST 0x0
#define PRSTCFG_POWUP_UNIT_RST 0x1
#define PRSTCFG_POWUP_RST 0x3
void qrio_prst(u8 bit, bool en, bool wden);
void qrio_wdmask(u8 bit, bool wden);
void qrio_prstcfg(u8 bit, u8 mode);
void qrio_set_leds(void);
void qrio_enable_app_buffer(void);
void qrio_cpuwd_flag(bool flag);
int qrio_reset_reason(void);
#define UPREQ_UNIT_RST 0x0
#define UPREQ_CORE_RST 0x1
void qrio_uprstreq(u8 mode);
void pci_of_setup(void *blob, bd_t *bd);