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093f79ab88
For sandbox we have a fallback console which is used very early in U-Boot, before serial drivers are available. Rather than try to guess when to switch to the real console, add a flag so we can be sure. This makes sure that sandbox can always output a panic() message, for example, and avoids silent failure (which is very annoying in sandbox). Signed-off-by: Simon Glass <sjg@chromium.org>
112 lines
3.8 KiB
C
112 lines
3.8 KiB
C
/*
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* Copyright (c) 2012 The Chromium OS Authors.
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* (C) Copyright 2002-2010
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __ASM_GENERIC_GBL_DATA_H
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#define __ASM_GENERIC_GBL_DATA_H
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/*
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* The following data structure is placed in some memory which is
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* available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
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* some locked parts of the data cache) to allow for a minimum set of
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* global variables during system initialization (until we have set
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* up the memory controller so that we can use RAM).
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*
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* Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t)
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*
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* Each architecture has its own private fields. For now all are private
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*/
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#ifndef __ASSEMBLY__
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#include <linux/list.h>
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typedef struct global_data {
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bd_t *bd;
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unsigned long flags;
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unsigned int baudrate;
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unsigned long cpu_clk; /* CPU clock in Hz! */
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unsigned long bus_clk;
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/* We cannot bracket this with CONFIG_PCI due to mpc5xxx */
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unsigned long pci_clk;
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unsigned long mem_clk;
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#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
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unsigned long fb_base; /* Base address of framebuffer mem */
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#endif
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#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
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unsigned long post_log_word; /* Record POST activities */
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unsigned long post_log_res; /* success of POST test */
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unsigned long post_init_f_time; /* When post_init_f started */
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#endif
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#ifdef CONFIG_BOARD_TYPES
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unsigned long board_type;
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#endif
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unsigned long have_console; /* serial_init() was called */
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#ifdef CONFIG_PRE_CONSOLE_BUFFER
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unsigned long precon_buf_idx; /* Pre-Console buffer index */
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#endif
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#ifdef CONFIG_MODEM_SUPPORT
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unsigned long do_mdm_init;
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unsigned long be_quiet;
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#endif
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unsigned long env_addr; /* Address of Environment struct */
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unsigned long env_valid; /* Checksum of Environment valid? */
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unsigned long ram_top; /* Top address of RAM used by U-Boot */
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unsigned long relocaddr; /* Start address of U-Boot in RAM */
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phys_size_t ram_size; /* RAM size */
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unsigned long mon_len; /* monitor len */
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unsigned long irq_sp; /* irq stack pointer */
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unsigned long start_addr_sp; /* start_addr_stackpointer */
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unsigned long reloc_off;
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struct global_data *new_gd; /* relocated global data */
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#ifdef CONFIG_DM
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struct udevice *dm_root; /* Root instance for Driver Model */
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struct udevice *dm_root_f; /* Pre-relocation root instance */
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struct list_head uclass_root; /* Head of core tree */
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#endif
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const void *fdt_blob; /* Our device tree, NULL if none */
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void *new_fdt; /* Relocated FDT */
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unsigned long fdt_size; /* Space reserved for relocated FDT */
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void **jt; /* jump table */
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char env_buf[32]; /* buffer for getenv() before reloc. */
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#ifdef CONFIG_TRACE
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void *trace_buff; /* The trace buffer */
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#endif
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#if defined(CONFIG_SYS_I2C)
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int cur_i2c_bus; /* current used i2c bus */
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#endif
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#ifdef CONFIG_SYS_I2C_MXC
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void *srdata[10];
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#endif
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unsigned long timebase_h;
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unsigned long timebase_l;
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#ifdef CONFIG_SYS_MALLOC_F_LEN
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unsigned long malloc_base; /* base address of early malloc() */
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unsigned long malloc_limit; /* limit address */
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unsigned long malloc_ptr; /* current address */
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#endif
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struct arch_global_data arch; /* architecture-specific data */
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} gd_t;
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#endif
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/*
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* Global Data Flags
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*/
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#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
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#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
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#define GD_FLG_SILENT 0x00004 /* Silent mode */
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#define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */
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#define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */
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#define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */
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#define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */
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#define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */
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#define GD_FLG_SERIAL_READY 0x00100 /* Pre-reloc serial console ready */
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#endif /* __ASM_GENERIC_GBL_DATA_H */
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