[people/ms/u-boot.git] / include / asm-generic / global_data.h

/*
 * 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__
#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)
	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 */

	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
	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
} gd_t;
#endif

#ifdef CONFIG_BOARD_TYPES
#define gd_board_type()		gd->board_type
#else
#define gd_board_type()		0
#endif

/*
 * Global Data Flags - the top 16 bits are reserved for arch-specific 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	   */

#endif /* __ASM_GENERIC_GBL_DATA_H */
Commit	Line	Data
50b1fa39 SG	1	/*
	2	* Copyright (c) 2012 The Chromium OS Authors.
	3	* (C) Copyright 2002-2010
	4	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	5	*
1a459660	6	* SPDX-License-Identifier: GPL-2.0+
50b1fa39 SG	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__
9854a874	24	#include <membuff.h>
6494d708 SG	25	#include <linux/list.h>
6494d708 SG	26
50b1fa39 SG	27	typedef struct global_data {
	28	bd_t *bd;
	29	unsigned long flags;
b5bec884	30	unsigned int baudrate;
2adbc17b	31	unsigned long cpu_clk; /* CPU clock in Hz! */
50b1fa39 SG	32	unsigned long bus_clk;
	33	/* We cannot bracket this with CONFIG_PCI due to mpc5xxx */
	34	unsigned long pci_clk;
	35	unsigned long mem_clk;
	36	#if defined(CONFIG_LCD) \|\| defined(CONFIG_VIDEO)
2adbc17b	37	unsigned long fb_base; /* Base address of framebuffer mem */
50b1fa39	38	#endif
c5404b64	39	#if defined(CONFIG_POST)
2adbc17b RD	40	unsigned long post_log_word; /* Record POST activities */
	41	unsigned long post_log_res; /* success of POST test */
	42	unsigned long post_init_f_time; /* When post_init_f started */
50b1fa39 SG	43	#endif
	44	#ifdef CONFIG_BOARD_TYPES
	45	unsigned long board_type;
	46	#endif
	47	unsigned long have_console; /* serial_init() was called */
8f925584	48	#if CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
50b1fa39	49	unsigned long precon_buf_idx; /* Pre-Console buffer index */
50b1fa39	50	#endif
2adbc17b	51	unsigned long env_addr; /* Address of Environment struct */
203e94f6	52	unsigned long env_valid; /* Environment valid? enum env_valid */
1d446087	53	unsigned long env_has_init; /* Bitmask of boolean of struct env_location offsets */
50b1fa39	54
2adbc17b	55	unsigned long ram_top; /* Top address of RAM used by U-Boot */
50b1fa39	56	unsigned long relocaddr; /* Start address of U-Boot in RAM */
2adbc17b RD	57	phys_size_t ram_size; /* RAM size */
2adbc17b RD	58	unsigned long mon_len; /* monitor len */
50b1fa39 SG	59	unsigned long irq_sp; /* irq stack pointer */
	60	unsigned long start_addr_sp; /* start_addr_stackpointer */
	61	unsigned long reloc_off;
	62	struct global_data new_gd; / relocated global data */
6494d708 SG	63
6494d708 SG	64	#ifdef CONFIG_DM
ab7cd627 SG	65	struct udevice dm_root; / Root instance for Driver Model */
ab7cd627 SG	66	struct udevice dm_root_f; / Pre-relocation root instance */
6494d708 SG	67	struct list_head uclass_root; /* Head of core tree */
6494d708 SG	68	#endif
c8a7ba9e	69	#ifdef CONFIG_TIMER
2adbc17b	70	struct udevice timer; / Timer instance for Driver Model */
c8a7ba9e	71	#endif
6494d708	72
2adbc17b RD	73	const void fdt_blob; / Our device tree, NULL if none */
	74	void new_fdt; / Relocated FDT */
	75	unsigned long fdt_size; /* Space reserved for relocated FDT */
5e060d8b SG	76	#ifdef CONFIG_OF_LIVE
	77	struct device_node *of_root;
	78	#endif
49cad547	79	struct jt_funcs jt; / jump table */
00caae6d	80	char env_buf[32]; /* buffer for env_get() before reloc. */
71c52dba SG	81	#ifdef CONFIG_TRACE
71c52dba SG	82	void trace_buff; / The trace buffer */
385c9ef5 HS	83	#endif
	84	#if defined(CONFIG_SYS_I2C)
	85	int cur_i2c_bus; /* current used i2c bus */
dec1861b YS	86	#endif
	87	#ifdef CONFIG_SYS_I2C_MXC
	88	void *srdata[10];
71c52dba	89	#endif
25112101 PF	90	unsigned int timebase_h;
25112101 PF	91	unsigned int timebase_l;
f1896c45	92	#if CONFIG_VAL(SYS_MALLOC_F_LEN)
d59476b6 SG	93	unsigned long malloc_base; /* base address of early malloc() */
	94	unsigned long malloc_limit; /* limit address */
	95	unsigned long malloc_ptr; /* current address */
8f9052fd BM	96	#endif
	97	#ifdef CONFIG_PCI
	98	struct pci_controller hose; / PCI hose for early use */
b9da5086	99	phys_addr_t pci_ram_top; /* top of region accessible to PCI */
8f9052fd BM	100	#endif
	101	#ifdef CONFIG_PCI_BOOTDELAY
	102	int pcidelay_done;
d59476b6	103	#endif
469a579d	104	struct udevice cur_serial_dev; / current serial device */
2212e69b	105	struct arch_global_data arch; /* architecture-specific data */
9854a874 SG	106	#ifdef CONFIG_CONSOLE_RECORD
	107	struct membuff console_out; /* console output */
	108	struct membuff console_in; /* console input */
	109	#endif
5a541945 SG	110	#ifdef CONFIG_DM_VIDEO
	111	ulong video_top; /* Top of video frame buffer area */
	112	ulong video_bottom; /* Bottom of video frame buffer area */
	113	#endif
b383d6c0 SG	114	#ifdef CONFIG_BOOTSTAGE
b383d6c0 SG	115	struct bootstage_data bootstage; / Bootstage information */
25e7dc6a	116	struct bootstage_data new_bootstage; / Relocated bootstage info */
b383d6c0	117	#endif
e9c8d49d SG	118	#ifdef CONFIG_LOG
	119	int log_drop_count; /* Number of dropped log messages */
	120	int default_log_level; /* For devices with no filters */
	121	struct list_head log_head; /* List of struct log_device */
3b73e8d0	122	int log_fmt; /* Mask containing log format info */
e9c8d49d	123	#endif
50b1fa39 SG	124	} gd_t;
	125	#endif
	126
52c41180 SG	127	#ifdef CONFIG_BOARD_TYPES
	128	#define gd_board_type() gd->board_type
	129	#else
	130	#define gd_board_type() 0
	131	#endif
	132
50b1fa39	133	/*
b0b403d9	134	* Global Data Flags - the top 16 bits are reserved for arch-specific flags
50b1fa39 SG	135	*/
	136	#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
	137	#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
	138	#define GD_FLG_SILENT 0x00004 /* Silent mode */
	139	#define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */
	140	#define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */
	141	#define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */
	142	#define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */
	143	#define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */
093f79ab	144	#define GD_FLG_SERIAL_READY 0x00100 /* Pre-reloc serial console ready */
c9356be3	145	#define GD_FLG_FULL_MALLOC_INIT 0x00200 /* Full malloc() is ready */
070d00b8	146	#define GD_FLG_SPL_INIT 0x00400 /* spl_init() has been called */
2adbc17b RD	147	#define GD_FLG_SKIP_RELOC 0x00800 /* Don't relocate */
	148	#define GD_FLG_RECORD 0x01000 /* Record console */
	149	#define GD_FLG_ENV_DEFAULT 0x02000 /* Default variable flag */
340f418a	150	#define GD_FLG_SPL_EARLY_INIT 0x04000 /* Early SPL init is done */
af1bc0cf	151	#define GD_FLG_LOG_READY 0x08000 /* Log system is ready for use */
50b1fa39 SG	152
50b1fa39 SG	153	#endif /* __ASM_GENERIC_GBL_DATA_H */