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/gen860t/ioport.h

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/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
* Keith Outwater, keith_outwater@mvis.com
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#define NUM_PORTS 4
#define PORT_BITS 18
/*
* This structure provides configuration information for one port pin.
* We include all fields needed to initialize any of the ioports.
*/
typedef struct {
unsigned char conf:1; /* If 1, configure this port */
unsigned char ppar:1; /* Port Pin Assignment Register */
unsigned char psor:1; /* Port Special Options Register */
unsigned char pdir:1; /* Port Data Direction Register */
unsigned char podr:1; /* Port Open Drain Register */
unsigned char pdat:1; /* Port Data Register */
unsigned char pint:1; /* Port Interrupt Register */
} mpc8xx_iop_conf_t;
extern void config_mpc8xx_ioports(volatile immap_t *immr);