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/freescale/t4qds/t4240qds_qixis.h

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/*
* Copyright 2012 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __T4020QDS_QIXIS_H__
#define __T4020QDS_QIXIS_H__
/* Definitions of QIXIS Registers for T4020QDS */
/* BRDCFG4[4:7]] select EC1 and EC2 as a pair */
#define BRDCFG4_EMISEL_MASK 0xE0
#define BRDCFG4_EMISEL_SHIFT 5
/* SYSCLK */
#define QIXIS_SYSCLK_66 0x0
#define QIXIS_SYSCLK_83 0x1
#define QIXIS_SYSCLK_100 0x2
#define QIXIS_SYSCLK_125 0x3
#define QIXIS_SYSCLK_133 0x4
#define QIXIS_SYSCLK_150 0x5
#define QIXIS_SYSCLK_160 0x6
#define QIXIS_SYSCLK_166 0x7
/* DDRCLK */
#define QIXIS_DDRCLK_66 0x0
#define QIXIS_DDRCLK_100 0x1
#define QIXIS_DDRCLK_125 0x2
#define QIXIS_DDRCLK_133 0x3
#define BRDCFG5_IRE 0x20 /* i2c Remote i2c1 enable */
#define BRDCFG12_SD3EN_MASK 0x20
#define BRDCFG12_SD3MX_MASK 0x08
#define BRDCFG12_SD3MX_SLOT5 0x08
#define BRDCFG12_SD3MX_SLOT6 0x00
#define BRDCFG12_SD4EN_MASK 0x04
#define BRDCFG12_SD4MX_MASK 0x03
#define BRDCFG12_SD4MX_SLOT7 0x02
#define BRDCFG12_SD4MX_SLOT8 0x01
#define BRDCFG12_SD4MX_AURO_SATA 0x00
#endif