mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-10-31 16:31:25 +01:00
8dfafdde88
Many platforms duplicate pretty much the same timer code yet they all have a 32-bit freerunning counter register. Create a common implementation that minimally requires 2 or 3 defines to add timer support: CONFIG_SYS_TIMER_RATE - Clock rate of the timer counter CONFIG_SYS_TIMER_COUNTER - Address of 32-bit counter CONFIG_SYS_TIMER_COUNTS_DOWN - Define if counter counts down All functions are weak or ifdef'ed so they can still be overriden by any platform. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
94 lines
3.3 KiB
C
94 lines
3.3 KiB
C
/*
|
|
* Copyright (c) 2012 The Chromium OS Authors.
|
|
* (C) Copyright 2002-2010
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#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__
|
|
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)
|
|
unsigned long fb_base; /* Base address of framebuffer mem */
|
|
#endif
|
|
#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
|
|
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 */
|
|
#ifdef CONFIG_PRE_CONSOLE_BUFFER
|
|
unsigned long precon_buf_idx; /* Pre-Console buffer index */
|
|
#endif
|
|
#ifdef CONFIG_MODEM_SUPPORT
|
|
unsigned long do_mdm_init;
|
|
unsigned long be_quiet;
|
|
#endif
|
|
unsigned long env_addr; /* Address of Environment struct */
|
|
unsigned long env_valid; /* Checksum of Environment valid? */
|
|
|
|
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 */
|
|
const void *fdt_blob; /* Our device tree, NULL if none */
|
|
void *new_fdt; /* Relocated FDT */
|
|
unsigned long fdt_size; /* Space reserved for relocated FDT */
|
|
void **jt; /* jump table */
|
|
char env_buf[32]; /* buffer for getenv() 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
|
|
unsigned long timebase_h;
|
|
unsigned long timebase_l;
|
|
struct arch_global_data arch; /* architecture-specific data */
|
|
} gd_t;
|
|
#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 */
|
|
|
|
#endif /* __ASM_GENERIC_GBL_DATA_H */
|