mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 10:48:51 +00:00
b710d9d6c2
This is minimum code required to be able to use device-tree for u-boot initialization. Currently only for device driver initialization. Linker script change ensures DTB to be aligned for both options CONFIG_OF_EMBED and CONFIG_OF_SEPARATE. Signed-off-by: Michal Simek <monstr@monstr.eu> Acked-by: Stephan Linz <linz@li-pro.net> CC: Simon Glass <sjg@chromium.org>
55 lines
2 KiB
C
55 lines
2 KiB
C
/*
|
|
* (C) Copyright 2004 Atmark Techno, Inc.
|
|
*
|
|
* Yasushi SHOJI <yashi@atmark-techno.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
|
|
*/
|
|
|
|
#ifndef __ASM_GBL_DATA_H
|
|
#define __ASM_GBL_DATA_H
|
|
/*
|
|
* The following data structure is placed in some memory wich is
|
|
* available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
|
|
* some locked parts of the data cache) to allow for a minimum set of
|
|
* global variables during system initialization (until we have set
|
|
* up the memory controller so that we can use RAM).
|
|
*/
|
|
|
|
typedef struct global_data {
|
|
bd_t *bd;
|
|
unsigned long flags;
|
|
unsigned long baudrate;
|
|
unsigned long have_console; /* serial_init() was called */
|
|
#ifdef CONFIG_PRE_CONSOLE_BUFFER
|
|
unsigned long precon_buf_idx; /* Pre-Console buffer index */
|
|
#endif
|
|
unsigned long env_addr; /* Address of Environment struct */
|
|
const void *fdt_blob; /* Our device tree, NULL if none */
|
|
unsigned long env_valid; /* Checksum of Environment valid? */
|
|
unsigned long fb_base; /* base address of frame buffer */
|
|
void **jt; /* jump table */
|
|
char env_buf[32]; /* buffer for getenv() before reloc. */
|
|
} gd_t;
|
|
|
|
#include <asm-generic/global_data_flags.h>
|
|
|
|
#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r31")
|
|
|
|
#endif /* __ASM_GBL_DATA_H */
|