Simon Glass | 0e72403 | 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 | * |
Wolfgang Denk | d79de1d | 2013-07-08 09:37:19 +0200 | [diff] [blame] | 6 | * SPDX-License-Identifier: GPL-2.0+ |
Simon Glass | 0e72403 | 2012-12-13 20:49:12 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
| 9 | #ifndef __ASM_GENERIC_GBL_DATA_H |
| 10 | #define __ASM_GENERIC_GBL_DATA_H |
| 11 | /* |
| 12 | * The following data structure is placed in some memory which is |
| 13 | * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or |
| 14 | * some locked parts of the data cache) to allow for a minimum set of |
| 15 | * global variables during system initialization (until we have set |
| 16 | * up the memory controller so that we can use RAM). |
| 17 | * |
| 18 | * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t) |
| 19 | * |
| 20 | * Each architecture has its own private fields. For now all are private |
| 21 | */ |
| 22 | |
| 23 | #ifndef __ASSEMBLY__ |
| 24 | typedef struct global_data { |
| 25 | bd_t *bd; |
| 26 | unsigned long flags; |
Simon Glass | 059c54f | 2013-03-05 14:40:05 +0000 | [diff] [blame] | 27 | unsigned int baudrate; |
Simon Glass | 0e72403 | 2012-12-13 20:49:12 +0000 | [diff] [blame] | 28 | unsigned long cpu_clk; /* CPU clock in Hz! */ |
| 29 | unsigned long bus_clk; |
| 30 | /* We cannot bracket this with CONFIG_PCI due to mpc5xxx */ |
| 31 | unsigned long pci_clk; |
| 32 | unsigned long mem_clk; |
| 33 | #if defined(CONFIG_LCD) || defined(CONFIG_VIDEO) |
| 34 | unsigned long fb_base; /* Base address of framebuffer mem */ |
| 35 | #endif |
| 36 | #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) |
| 37 | unsigned long post_log_word; /* Record POST activities */ |
| 38 | unsigned long post_log_res; /* success of POST test */ |
| 39 | unsigned long post_init_f_time; /* When post_init_f started */ |
| 40 | #endif |
| 41 | #ifdef CONFIG_BOARD_TYPES |
| 42 | unsigned long board_type; |
| 43 | #endif |
| 44 | unsigned long have_console; /* serial_init() was called */ |
| 45 | #ifdef CONFIG_PRE_CONSOLE_BUFFER |
| 46 | unsigned long precon_buf_idx; /* Pre-Console buffer index */ |
| 47 | #endif |
| 48 | #ifdef CONFIG_MODEM_SUPPORT |
| 49 | unsigned long do_mdm_init; |
| 50 | unsigned long be_quiet; |
| 51 | #endif |
| 52 | unsigned long env_addr; /* Address of Environment struct */ |
| 53 | unsigned long env_valid; /* Checksum of Environment valid? */ |
| 54 | |
Simon Glass | 0e72403 | 2012-12-13 20:49:12 +0000 | [diff] [blame] | 55 | unsigned long ram_top; /* Top address of RAM used by U-Boot */ |
| 56 | |
| 57 | unsigned long relocaddr; /* Start address of U-Boot in RAM */ |
| 58 | phys_size_t ram_size; /* RAM size */ |
| 59 | unsigned long mon_len; /* monitor len */ |
| 60 | unsigned long irq_sp; /* irq stack pointer */ |
| 61 | unsigned long start_addr_sp; /* start_addr_stackpointer */ |
| 62 | unsigned long reloc_off; |
| 63 | struct global_data *new_gd; /* relocated global data */ |
| 64 | const void *fdt_blob; /* Our device tree, NULL if none */ |
Simon Glass | c45e359 | 2013-03-11 06:49:53 +0000 | [diff] [blame] | 65 | void *new_fdt; /* Relocated FDT */ |
| 66 | unsigned long fdt_size; /* Space reserved for relocated FDT */ |
Simon Glass | 0e72403 | 2012-12-13 20:49:12 +0000 | [diff] [blame] | 67 | void **jt; /* jump table */ |
| 68 | char env_buf[32]; /* buffer for getenv() before reloc. */ |
Simon Glass | 209a1a6 | 2013-06-11 11:14:42 -0700 | [diff] [blame] | 69 | #ifdef CONFIG_TRACE |
| 70 | void *trace_buff; /* The trace buffer */ |
| 71 | #endif |
Heiko Schocher | e7d9c4f | 2012-01-16 21:12:23 +0000 | [diff] [blame] | 72 | #if defined(CONFIG_SYS_I2C) |
| 73 | int cur_i2c_bus; /* current used i2c bus */ |
| 74 | #endif |
Simon Glass | 0e72403 | 2012-12-13 20:49:12 +0000 | [diff] [blame] | 75 | struct arch_global_data arch; /* architecture-specific data */ |
| 76 | } gd_t; |
| 77 | #endif |
| 78 | |
| 79 | /* |
| 80 | * Global Data Flags |
| 81 | */ |
| 82 | #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ |
| 83 | #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ |
| 84 | #define GD_FLG_SILENT 0x00004 /* Silent mode */ |
| 85 | #define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */ |
| 86 | #define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */ |
| 87 | #define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */ |
| 88 | #define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */ |
| 89 | #define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */ |
| 90 | |
| 91 | #endif /* __ASM_GENERIC_GBL_DATA_H */ |