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 }; 42 43 /* 44 * The following data structure is placed in some memory which is 45 * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or 46 * some locked parts of the data cache) to allow for a minimum set of 47 * global variables during system initialization (until we have set 48 * up the memory controller so that we can use RAM). 49 */ 50 51 typedef struct global_data { 52 bd_t *bd; 53 unsigned long flags; 54 unsigned int baudrate; 55 unsigned long have_console; /* serial_init() was called */ 56 #ifdef CONFIG_PRE_CONSOLE_BUFFER 57 unsigned long precon_buf_idx; /* Pre-Console buffer index */ 58 #endif 59 unsigned long env_addr; /* Address of Environment struct */ 60 unsigned long env_valid; /* Checksum of Environment valid? */ 61 unsigned long fb_base; /* base address of frame buffer */ 62 #ifdef CONFIG_FSL_ESDHC 63 unsigned long sdhc_clk; 64 #endif 65 #ifdef CONFIG_ARM 66 /* "static data" needed by most of timer.c on ARM platforms */ 67 unsigned long tbl; 68 unsigned long long timer_reset_value; 69 unsigned long lastinc; 70 #endif 71 #ifdef CONFIG_IXP425 72 unsigned long timestamp; 73 #endif 74 unsigned long relocaddr; /* Start address of U-Boot in RAM */ 75 phys_size_t ram_size; /* RAM size */ 76 unsigned long mon_len; /* monitor len */ 77 unsigned long irq_sp; /* irq stack pointer */ 78 unsigned long start_addr_sp; /* start_addr_stackpointer */ 79 unsigned long reloc_off; 80 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) 81 unsigned long tlb_addr; 82 unsigned long tlb_size; 83 #endif 84 const void *fdt_blob; /* Our device tree, NULL if none */ 85 void **jt; /* jump table */ 86 char env_buf[32]; /* buffer for getenv() before reloc. */ 87 #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) 88 unsigned long post_log_word; /* Record POST activities */ 89 unsigned long post_log_res; /* success of POST test */ 90 unsigned long post_init_f_time; /* When post_init_f started */ 91 #endif 92 struct arch_global_data arch; /* architecture-specific data */ 93 } gd_t; 94 95 #include <asm-generic/global_data_flags.h> 96 97 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r8") 98 99 #endif /* __ASM_GBL_DATA_H */ 100