1*50b1fa39SSimon Glass /* 2*50b1fa39SSimon Glass * Copyright (c) 2012 The Chromium OS Authors. 3*50b1fa39SSimon Glass * (C) Copyright 2002-2010 4*50b1fa39SSimon Glass * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5*50b1fa39SSimon Glass * 6*50b1fa39SSimon Glass * See file CREDITS for list of people who contributed to this 7*50b1fa39SSimon Glass * project. 8*50b1fa39SSimon Glass * 9*50b1fa39SSimon Glass * This program is free software; you can redistribute it and/or 10*50b1fa39SSimon Glass * modify it under the terms of the GNU General Public License as 11*50b1fa39SSimon Glass * published by the Free Software Foundation; either version 2 of 12*50b1fa39SSimon Glass * the License, or (at your option) any later version. 13*50b1fa39SSimon Glass * 14*50b1fa39SSimon Glass * This program is distributed in the hope that it will be useful, 15*50b1fa39SSimon Glass * but WITHOUT ANY WARRANTY; without even the implied warranty of 16*50b1fa39SSimon Glass * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17*50b1fa39SSimon Glass * GNU General Public License for more details. 18*50b1fa39SSimon Glass * 19*50b1fa39SSimon Glass * You should have received a copy of the GNU General Public License 20*50b1fa39SSimon Glass * along with this program; if not, write to the Free Software 21*50b1fa39SSimon Glass * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 22*50b1fa39SSimon Glass * MA 02111-1307 USA 23*50b1fa39SSimon Glass */ 24*50b1fa39SSimon Glass 25*50b1fa39SSimon Glass #ifndef __ASM_GENERIC_GBL_DATA_H 26*50b1fa39SSimon Glass #define __ASM_GENERIC_GBL_DATA_H 27*50b1fa39SSimon Glass /* 28*50b1fa39SSimon Glass * The following data structure is placed in some memory which is 29*50b1fa39SSimon Glass * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or 30*50b1fa39SSimon Glass * some locked parts of the data cache) to allow for a minimum set of 31*50b1fa39SSimon Glass * global variables during system initialization (until we have set 32*50b1fa39SSimon Glass * up the memory controller so that we can use RAM). 33*50b1fa39SSimon Glass * 34*50b1fa39SSimon Glass * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t) 35*50b1fa39SSimon Glass * 36*50b1fa39SSimon Glass * Each architecture has its own private fields. For now all are private 37*50b1fa39SSimon Glass */ 38*50b1fa39SSimon Glass 39*50b1fa39SSimon Glass #ifndef __ASSEMBLY__ 40*50b1fa39SSimon Glass typedef struct global_data { 41*50b1fa39SSimon Glass bd_t *bd; 42*50b1fa39SSimon Glass unsigned long flags; 43*50b1fa39SSimon Glass unsigned long baudrate; 44*50b1fa39SSimon Glass unsigned long cpu_clk; /* CPU clock in Hz! */ 45*50b1fa39SSimon Glass unsigned long bus_clk; 46*50b1fa39SSimon Glass /* We cannot bracket this with CONFIG_PCI due to mpc5xxx */ 47*50b1fa39SSimon Glass unsigned long pci_clk; 48*50b1fa39SSimon Glass unsigned long mem_clk; 49*50b1fa39SSimon Glass #if defined(CONFIG_LCD) || defined(CONFIG_VIDEO) 50*50b1fa39SSimon Glass unsigned long fb_base; /* Base address of framebuffer mem */ 51*50b1fa39SSimon Glass #endif 52*50b1fa39SSimon Glass #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) 53*50b1fa39SSimon Glass unsigned long post_log_word; /* Record POST activities */ 54*50b1fa39SSimon Glass unsigned long post_log_res; /* success of POST test */ 55*50b1fa39SSimon Glass unsigned long post_init_f_time; /* When post_init_f started */ 56*50b1fa39SSimon Glass #endif 57*50b1fa39SSimon Glass #ifdef CONFIG_BOARD_TYPES 58*50b1fa39SSimon Glass unsigned long board_type; 59*50b1fa39SSimon Glass #endif 60*50b1fa39SSimon Glass unsigned long have_console; /* serial_init() was called */ 61*50b1fa39SSimon Glass #ifdef CONFIG_PRE_CONSOLE_BUFFER 62*50b1fa39SSimon Glass unsigned long precon_buf_idx; /* Pre-Console buffer index */ 63*50b1fa39SSimon Glass #endif 64*50b1fa39SSimon Glass #ifdef CONFIG_MODEM_SUPPORT 65*50b1fa39SSimon Glass unsigned long do_mdm_init; 66*50b1fa39SSimon Glass unsigned long be_quiet; 67*50b1fa39SSimon Glass #endif 68*50b1fa39SSimon Glass unsigned long env_addr; /* Address of Environment struct */ 69*50b1fa39SSimon Glass unsigned long env_valid; /* Checksum of Environment valid? */ 70*50b1fa39SSimon Glass 71*50b1fa39SSimon Glass /* TODO: is this the same as relocaddr, or something else? */ 72*50b1fa39SSimon Glass unsigned long dest_addr; /* Post-relocation address of U-Boot */ 73*50b1fa39SSimon Glass unsigned long dest_addr_sp; 74*50b1fa39SSimon Glass unsigned long ram_top; /* Top address of RAM used by U-Boot */ 75*50b1fa39SSimon Glass 76*50b1fa39SSimon Glass unsigned long relocaddr; /* Start address of U-Boot in RAM */ 77*50b1fa39SSimon Glass phys_size_t ram_size; /* RAM size */ 78*50b1fa39SSimon Glass unsigned long mon_len; /* monitor len */ 79*50b1fa39SSimon Glass unsigned long irq_sp; /* irq stack pointer */ 80*50b1fa39SSimon Glass unsigned long start_addr_sp; /* start_addr_stackpointer */ 81*50b1fa39SSimon Glass unsigned long reloc_off; 82*50b1fa39SSimon Glass struct global_data *new_gd; /* relocated global data */ 83*50b1fa39SSimon Glass const void *fdt_blob; /* Our device tree, NULL if none */ 84*50b1fa39SSimon Glass void **jt; /* jump table */ 85*50b1fa39SSimon Glass char env_buf[32]; /* buffer for getenv() before reloc. */ 86*50b1fa39SSimon Glass struct arch_global_data arch; /* architecture-specific data */ 87*50b1fa39SSimon Glass } gd_t; 88*50b1fa39SSimon Glass #endif 89*50b1fa39SSimon Glass 90*50b1fa39SSimon Glass /* 91*50b1fa39SSimon Glass * Global Data Flags 92*50b1fa39SSimon Glass */ 93*50b1fa39SSimon Glass #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ 94*50b1fa39SSimon Glass #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ 95*50b1fa39SSimon Glass #define GD_FLG_SILENT 0x00004 /* Silent mode */ 96*50b1fa39SSimon Glass #define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */ 97*50b1fa39SSimon Glass #define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */ 98*50b1fa39SSimon Glass #define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */ 99*50b1fa39SSimon Glass #define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */ 100*50b1fa39SSimon Glass #define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */ 101*50b1fa39SSimon Glass 102*50b1fa39SSimon Glass #endif /* __ASM_GENERIC_GBL_DATA_H */ 103