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/barco/platinum/platinum.h

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/*
* Copyright (C) 2014 Stefan Roese <sr@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _PLATINUM_H_
#define _PLATINUM_H_
#include <miiphy.h>
#include <asm/arch/crm_regs.h>
#include <asm/io.h>
/* Defines */
#define ECSPI1_PAD_CLK (PAD_CTL_SRE_SLOW | PAD_CTL_PUS_100K_DOWN | \
PAD_CTL_SPEED_LOW | PAD_CTL_DSE_40ohm | \
PAD_CTL_HYS)
#define ECSPI2_PAD_CLK (PAD_CTL_SRE_FAST | PAD_CTL_PUS_100K_DOWN | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
PAD_CTL_HYS)
#define ECSPI_PAD_MOSI (PAD_CTL_SRE_SLOW | PAD_CTL_PUS_100K_DOWN | \
PAD_CTL_SPEED_LOW | PAD_CTL_DSE_120ohm | \
PAD_CTL_HYS)
#define ECSPI_PAD_MISO (PAD_CTL_SRE_FAST | PAD_CTL_PUS_100K_DOWN | \
PAD_CTL_SPEED_LOW | PAD_CTL_DSE_40ohm | \
PAD_CTL_HYS)
#define ECSPI_PAD_SS (PAD_CTL_SRE_SLOW | PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_LOW | PAD_CTL_DSE_120ohm | \
PAD_CTL_HYS)
#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
PAD_CTL_ODE | PAD_CTL_SRE_FAST)
#define I2C_PAD_CTRL_SCL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \
PAD_CTL_DSE_80ohm | PAD_CTL_HYS | \
PAD_CTL_ODE | PAD_CTL_SRE_SLOW)
#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | \
PAD_CTL_HYS)
#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | \
PAD_CTL_HYS)
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
#define PC_SCL MUX_PAD_CTRL(I2C_PAD_CTRL_SCL)
/* Prototypes */
int platinum_setup_enet(void);
int platinum_setup_i2c(void);
int platinum_setup_spi(void);
int platinum_setup_uart(void);
int platinum_phy_config(struct phy_device *phydev);
int platinum_init_gpio(void);
int platinum_init_usb(void);
int platinum_init_finished(void);
static inline void ccgr_init(void)
{
struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
writel(0x00C03F3F, &ccm->CCGR0);
writel(0x0030FC03, &ccm->CCGR1);
writel(0x0FFFC000, &ccm->CCGR2);
writel(0x3FF00000, &ccm->CCGR3);
writel(0xFFFFF300, &ccm->CCGR4); /* enable NAND/GPMI/BCH clks */
writel(0x0F0000C3, &ccm->CCGR5);
writel(0x000003FF, &ccm->CCGR6);
}
#endif /* _PLATINUM_H_ */