| Simon Glass | 50b1fa3 | 2012-12-13 20:49:12 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2012 The Chromium OS Authors. |
| 3 | * (C) Copyright 2002-2010 |
| 4 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| 5 | * |
| 6 | * See file CREDITS for list of people who contributed to this |
| 7 | * project. |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU General Public License as |
| 11 | * published by the Free Software Foundation; either version 2 of |
| 12 | * the License, or (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 22 | * MA 02111-1307 USA |
| 23 | */ |
| 24 | |
| 25 | #ifndef __ASM_GENERIC_GBL_DATA_H |
| 26 | #define __ASM_GENERIC_GBL_DATA_H |
| 27 | /* |
| 28 | * The following data structure is placed in some memory which is |
| 29 | * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or |
| 30 | * some locked parts of the data cache) to allow for a minimum set of |
| 31 | * global variables during system initialization (until we have set |
| 32 | * up the memory controller so that we can use RAM). |
| 33 | * |
| 34 | * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t) |
| 35 | * |
| 36 | * Each architecture has its own private fields. For now all are private |
| 37 | */ |
| 38 | |
| 39 | #ifndef __ASSEMBLY__ |
| 40 | typedef struct global_data { |
| 41 | bd_t *bd; |
| 42 | unsigned long flags; |
| 43 | unsigned long baudrate; |
| 44 | unsigned long cpu_clk; /* CPU clock in Hz! */ |
| 45 | unsigned long bus_clk; |
| 46 | /* We cannot bracket this with CONFIG_PCI due to mpc5xxx */ |
| 47 | unsigned long pci_clk; |
| 48 | unsigned long mem_clk; |
| 49 | #if defined(CONFIG_LCD) || defined(CONFIG_VIDEO) |
| 50 | unsigned long fb_base; /* Base address of framebuffer mem */ |
| 51 | #endif |
| 52 | #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) |
| 53 | unsigned long post_log_word; /* Record POST activities */ |
| 54 | unsigned long post_log_res; /* success of POST test */ |
| 55 | unsigned long post_init_f_time; /* When post_init_f started */ |
| 56 | #endif |
| 57 | #ifdef CONFIG_BOARD_TYPES |
| 58 | unsigned long board_type; |
| 59 | #endif |
| 60 | unsigned long have_console; /* serial_init() was called */ |
| 61 | #ifdef CONFIG_PRE_CONSOLE_BUFFER |
| 62 | unsigned long precon_buf_idx; /* Pre-Console buffer index */ |
| 63 | #endif |
| 64 | #ifdef CONFIG_MODEM_SUPPORT |
| 65 | unsigned long do_mdm_init; |
| 66 | unsigned long be_quiet; |
| 67 | #endif |
| 68 | unsigned long env_addr; /* Address of Environment struct */ |
| 69 | unsigned long env_valid; /* Checksum of Environment valid? */ |
| 70 | |
| 71 | /* TODO: is this the same as relocaddr, or something else? */ |
| 72 | unsigned long dest_addr; /* Post-relocation address of U-Boot */ |
| 73 | unsigned long dest_addr_sp; |
| 74 | unsigned long ram_top; /* Top address of RAM used by U-Boot */ |
| 75 | |
| 76 | unsigned long relocaddr; /* Start address of U-Boot in RAM */ |
| 77 | phys_size_t ram_size; /* RAM size */ |
| 78 | unsigned long mon_len; /* monitor len */ |
| 79 | unsigned long irq_sp; /* irq stack pointer */ |
| 80 | unsigned long start_addr_sp; /* start_addr_stackpointer */ |
| 81 | unsigned long reloc_off; |
| 82 | struct global_data *new_gd; /* relocated global data */ |
| 83 | const void *fdt_blob; /* Our device tree, NULL if none */ |
| 84 | void **jt; /* jump table */ |
| 85 | char env_buf[32]; /* buffer for getenv() before reloc. */ |
| 86 | struct arch_global_data arch; /* architecture-specific data */ |
| 87 | } gd_t; |
| 88 | #endif |
| 89 | |
| 90 | /* |
| 91 | * Global Data Flags |
| 92 | */ |
| 93 | #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ |
| 94 | #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ |
| 95 | #define GD_FLG_SILENT 0x00004 /* Silent mode */ |
| 96 | #define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */ |
| 97 | #define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */ |
| 98 | #define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */ |
| 99 | #define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */ |
| 100 | #define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */ |
| 101 | |
| 102 | #endif /* __ASM_GENERIC_GBL_DATA_H */ |