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Diffstat (limited to 'include/asm-generic/global_data.h')
| -rw-r--r-- | include/asm-generic/global_data.h | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h new file mode 100644 index 0000000..7587ba2 --- /dev/null +++ b/include/asm-generic/global_data.h @@ -0,0 +1,173 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (c) 2012 The Chromium OS Authors. + * (C) Copyright 2002-2010 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + */ + +#ifndef __ASM_GENERIC_GBL_DATA_H +#define __ASM_GENERIC_GBL_DATA_H +/* + * The following data structure is placed in some memory which is + * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or + * some locked parts of the data cache) to allow for a minimum set of + * global variables during system initialization (until we have set + * up the memory controller so that we can use RAM). + * + * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t) + * + * Each architecture has its own private fields. For now all are private + */ + +#ifndef __ASSEMBLY__ +#include <fdtdec.h> +#include <membuff.h> +#include <linux/list.h> + +typedef struct global_data { + bd_t *bd; + unsigned long flags; + unsigned int baudrate; + unsigned long cpu_clk; /* CPU clock in Hz! */ + unsigned long bus_clk; + /* We cannot bracket this with CONFIG_PCI due to mpc5xxx */ + unsigned long pci_clk; + unsigned long mem_clk; +#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO) || defined(CONFIG_DM_VIDEO) + unsigned long fb_base; /* Base address of framebuffer mem */ +#endif +#if defined(CONFIG_POST) + unsigned long post_log_word; /* Record POST activities */ + unsigned long post_log_res; /* success of POST test */ + unsigned long post_init_f_time; /* When post_init_f started */ +#endif +#ifdef CONFIG_BOARD_TYPES + unsigned long board_type; +#endif + unsigned long have_console; /* serial_init() was called */ +#if CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER) + unsigned long precon_buf_idx; /* Pre-Console buffer index */ +#endif + unsigned long env_addr; /* Address of Environment struct */ + unsigned long env_valid; /* Environment valid? enum env_valid */ + unsigned long env_has_init; /* Bitmask of boolean of struct env_location offsets */ + int env_load_prio; /* Priority of the loaded environment */ + + unsigned long ram_base; /* Base address of RAM used by U-Boot */ + unsigned long ram_top; /* Top address of RAM used by U-Boot */ + unsigned long relocaddr; /* Start address of U-Boot in RAM */ + phys_size_t ram_size; /* RAM size */ + unsigned long mon_len; /* monitor len */ + unsigned long irq_sp; /* irq stack pointer */ + unsigned long start_addr_sp; /* start_addr_stackpointer */ + unsigned long reloc_off; + struct global_data *new_gd; /* relocated global data */ + +#ifdef CONFIG_DM + struct udevice *dm_root; /* Root instance for Driver Model */ + struct udevice *dm_root_f; /* Pre-relocation root instance */ + struct list_head uclass_root; /* Head of core tree */ +#endif +#ifdef CONFIG_TIMER + struct udevice *timer; /* Timer instance for Driver Model */ +#endif + + const void *fdt_blob; /* Our device tree, NULL if none */ + void *new_fdt; /* Relocated FDT */ + unsigned long fdt_size; /* Space reserved for relocated FDT */ +#ifdef CONFIG_OF_LIVE + struct device_node *of_root; +#endif + +#if CONFIG_IS_ENABLED(MULTI_DTB_FIT) + const void *multi_dtb_fit; /* uncompressed multi-dtb FIT image */ +#endif + struct jt_funcs *jt; /* jump table */ + char env_buf[32]; /* buffer for env_get() before reloc. */ +#ifdef CONFIG_TRACE + void *trace_buff; /* The trace buffer */ +#endif +#if defined(CONFIG_SYS_I2C) + int cur_i2c_bus; /* current used i2c bus */ +#endif +#ifdef CONFIG_SYS_I2C_MXC + void *srdata[10]; +#endif + unsigned int timebase_h; + unsigned int timebase_l; +#if CONFIG_VAL(SYS_MALLOC_F_LEN) + unsigned long malloc_base; /* base address of early malloc() */ + unsigned long malloc_limit; /* limit address */ + unsigned long malloc_ptr; /* current address */ +#endif +#ifdef CONFIG_PCI + struct pci_controller *hose; /* PCI hose for early use */ + phys_addr_t pci_ram_top; /* top of region accessible to PCI */ +#endif +#ifdef CONFIG_PCI_BOOTDELAY + int pcidelay_done; +#endif + struct udevice *cur_serial_dev; /* current serial device */ + struct arch_global_data arch; /* architecture-specific data */ +#ifdef CONFIG_CONSOLE_RECORD + struct membuff console_out; /* console output */ + struct membuff console_in; /* console input */ +#endif +#ifdef CONFIG_DM_VIDEO + ulong video_top; /* Top of video frame buffer area */ + ulong video_bottom; /* Bottom of video frame buffer area */ +#endif +#ifdef CONFIG_BOOTSTAGE + struct bootstage_data *bootstage; /* Bootstage information */ + struct bootstage_data *new_bootstage; /* Relocated bootstage info */ +#endif +#ifdef CONFIG_LOG + int log_drop_count; /* Number of dropped log messages */ + int default_log_level; /* For devices with no filters */ + struct list_head log_head; /* List of struct log_device */ + int log_fmt; /* Mask containing log format info */ +#endif +#if CONFIG_IS_ENABLED(BLOBLIST) + struct bloblist_hdr *bloblist; /* Bloblist information */ + struct bloblist_hdr *new_bloblist; /* Relocated blolist info */ +# ifdef CONFIG_SPL + struct spl_handoff *spl_handoff; +# endif +#endif +#if defined(CONFIG_TRANSLATION_OFFSET) + fdt_addr_t translation_offset; /* optional translation offset */ +#endif +#if CONFIG_IS_ENABLED(WDT) + struct udevice *watchdog_dev; +#endif +} gd_t; +#endif + +#ifdef CONFIG_BOARD_TYPES +#define gd_board_type() gd->board_type +#else +#define gd_board_type() 0 +#endif + +/* + * Global Data Flags + */ +#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ +#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ +#define GD_FLG_SILENT 0x00004 /* Silent mode */ +#define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */ +#define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */ +#define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */ +#define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */ +#define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */ +#define GD_FLG_SERIAL_READY 0x00100 /* Pre-reloc serial console ready */ +#define GD_FLG_FULL_MALLOC_INIT 0x00200 /* Full malloc() is ready */ +#define GD_FLG_SPL_INIT 0x00400 /* spl_init() has been called */ +#define GD_FLG_SKIP_RELOC 0x00800 /* Don't relocate */ +#define GD_FLG_RECORD 0x01000 /* Record console */ +#define GD_FLG_ENV_DEFAULT 0x02000 /* Default variable flag */ +#define GD_FLG_SPL_EARLY_INIT 0x04000 /* Early SPL init is done */ +#define GD_FLG_LOG_READY 0x08000 /* Log system is ready for use */ +#define GD_FLG_WDT_READY 0x10000 /* Watchdog is ready for use */ + +#endif /* __ASM_GENERIC_GBL_DATA_H */ |