1 /* 2 * (C) Copyright 2002 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 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> 8 * 9 * See file CREDITS for list of people who contributed to this 10 * project. 11 * 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. 16 * 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. 21 * 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, 25 * MA 02111-1307 USA 26 */ 27 28 /************************************************************** 29 * CAUTION: 30 * - do not implement for NDS32 Arch yet. 31 * - so far no one uses the macros defined in this head file. 32 **************************************************************/ 33 34 #ifndef __ASM_GBL_DATA_H 35 #define __ASM_GBL_DATA_H 36 /* 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). 42 */ 43 44 typedef struct global_data { 45 bd_t *bd; 46 unsigned long flags; 47 unsigned int baudrate; 48 unsigned long have_console; /* serial_init() was called */ 49 50 unsigned long reloc_off; /* Relocation Offset */ 51 unsigned long env_addr; /* Address of Environment struct */ 52 unsigned long env_valid; /* Checksum of Environment valid? */ 53 unsigned long fb_base; /* base address of frame buffer */ 54 55 unsigned long relocaddr; /* Start address of U-Boot in RAM */ 56 phys_size_t ram_size; /* RAM size */ 57 unsigned long mon_len; /* monitor len */ 58 unsigned long irq_sp; /* irq stack pointer */ 59 unsigned long start_addr_sp; /* start_addr_stackpointer */ 60 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) 61 unsigned long tlb_addr; 62 #endif 63 64 void **jt; /* jump table */ 65 char env_buf[32]; /* buffer for getenv() before reloc. */ 66 } gd_t; 67 68 #include <asm-generic/global_data_flags.h> 69 70 #ifdef CONFIG_GLOBAL_DATA_NOT_REG10 71 extern volatile gd_t g_gd; 72 #define DECLARE_GLOBAL_DATA_PTR static volatile gd_t *gd = &g_gd 73 #else 74 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("$r10") 75 #endif 76 77 #endif /* __ASM_GBL_DATA_H */ 78