1 /* 2 * (C) Copyright 2002-2010 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 */ 23 24 #ifndef __ASM_GBL_DATA_H 25 #define __ASM_GBL_DATA_H 26 27 /* Architecture-specific global data */ 28 struct arch_global_data { 29 #ifdef CONFIG_AT91FAMILY 30 /* "static data" needed by at91's clock.c */ 31 unsigned long cpu_clk_rate_hz; 32 unsigned long main_clk_rate_hz; 33 unsigned long mck_rate_hz; 34 unsigned long plla_rate_hz; 35 unsigned long pllb_rate_hz; 36 unsigned long at91_pllb_usb_init; 37 #endif 38 /* "static data" needed by most of timer.c on ARM platforms */ 39 unsigned long timer_rate_hz; 40 unsigned long tbu; 41 unsigned long tbl; 42 unsigned long lastinc; 43 unsigned long long timer_reset_value; 44 }; 45 46 /* 47 * The following data structure is placed in some memory which is 48 * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or 49 * some locked parts of the data cache) to allow for a minimum set of 50 * global variables during system initialization (until we have set 51 * up the memory controller so that we can use RAM). 52 */ 53 54 typedef struct global_data { 55 bd_t *bd; 56 unsigned long flags; 57 unsigned int baudrate; 58 unsigned long have_console; /* serial_init() was called */ 59 #ifdef CONFIG_PRE_CONSOLE_BUFFER 60 unsigned long precon_buf_idx; /* Pre-Console buffer index */ 61 #endif 62 unsigned long env_addr; /* Address of Environment struct */ 63 unsigned long env_valid; /* Checksum of Environment valid? */ 64 unsigned long fb_base; /* base address of frame buffer */ 65 #ifdef CONFIG_FSL_ESDHC 66 unsigned long sdhc_clk; 67 #endif 68 #ifdef CONFIG_IXP425 69 unsigned long timestamp; 70 #endif 71 unsigned long relocaddr; /* Start address of U-Boot in RAM */ 72 phys_size_t ram_size; /* RAM size */ 73 unsigned long mon_len; /* monitor len */ 74 unsigned long irq_sp; /* irq stack pointer */ 75 unsigned long start_addr_sp; /* start_addr_stackpointer */ 76 unsigned long reloc_off; 77 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) 78 unsigned long tlb_addr; 79 unsigned long tlb_size; 80 #endif 81 const void *fdt_blob; /* Our device tree, NULL if none */ 82 void **jt; /* jump table */ 83 char env_buf[32]; /* buffer for getenv() before reloc. */ 84 #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) 85 unsigned long post_log_word; /* Record POST activities */ 86 unsigned long post_log_res; /* success of POST test */ 87 unsigned long post_init_f_time; /* When post_init_f started */ 88 #endif 89 struct arch_global_data arch; /* architecture-specific data */ 90 } gd_t; 91 92 #include <asm-generic/global_data_flags.h> 93 94 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r8") 95 96 #endif /* __ASM_GBL_DATA_H */ 97