3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * Copyright (C) 2011 Andes Technology Corporation
6 * Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
7 * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
9 * See file CREDITS for list of people who contributed to this
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
28 /**************************************************************
30 * - do not implement for NDS32 Arch yet.
31 * - so far no one uses the macros defined in this head file.
32 **************************************************************/
34 #ifndef __ASM_GBL_DATA_H
35 #define __ASM_GBL_DATA_H
37 * The following data structure is placed in some memory wich is
38 * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
39 * some locked parts of the data cache) to allow for a minimum set of
40 * global variables during system initialization (until we have set
41 * up the memory controller so that we can use RAM).
43 * Keep it *SMALL* and remember to set CONFIG_GBL_DATA_SIZE > sizeof(gd_t)
46 typedef struct global_data {
49 unsigned long baudrate;
50 unsigned long have_console; /* serial_init() was called */
52 unsigned long reloc_off; /* Relocation Offset */
53 unsigned long env_addr; /* Address of Environment struct */
54 unsigned long env_valid; /* Checksum of Environment valid? */
55 unsigned long fb_base; /* base address of frame buffer */
57 unsigned long relocaddr; /* Start address of U-Boot in RAM */
58 phys_size_t ram_size; /* RAM size */
59 unsigned long mon_len; /* monitor len */
60 unsigned long irq_sp; /* irq stack pointer */
61 unsigned long start_addr_sp; /* start_addr_stackpointer */
62 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))
63 unsigned long tlb_addr;
66 void **jt; /* jump table */
67 char env_buf[32]; /* buffer for getenv() before reloc. */
73 #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
74 #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
75 #define GD_FLG_SILENT 0x00004 /* Silent mode */
76 #define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */
77 #define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */
78 #define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */
79 #define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */
80 #define GD_FLG_ENV_READY 0x00080 /* Envs imported into hash table */
82 #ifdef CONFIG_GLOBAL_DATA_NOT_REG10
83 extern volatile gd_t g_gd;
84 #define DECLARE_GLOBAL_DATA_PTR static volatile gd_t *gd = &g_gd
86 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("$r10")
89 #endif /* __ASM_GBL_DATA_H */