arch/powerpc/include/asm/global_data.h

/*
 * (C) Copyright 2002-2010
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#ifndef	__ASM_GBL_DATA_H
#define __ASM_GBL_DATA_H

#include "config.h"
#include "asm/types.h"

/*
 * The following data structure is placed in some memory wich 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 CONFIG_SYS_GBL_DATA_SIZE > sizeof(gd_t)
 */

typedef	struct	global_data {
	bd_t		*bd;
	unsigned long	flags;
	unsigned long	baudrate;
	unsigned long	cpu_clk;	/* CPU clock in Hz! */
	unsigned long	bus_clk;
#if defined(CONFIG_8xx)
	unsigned long	brg_clk;
#endif
#if defined(CONFIG_CPM2)
	/* There are many clocks on the MPC8260 - see page 9-5 */
	unsigned long	vco_out;
	unsigned long	cpm_clk;
	unsigned long	scc_clk;
	unsigned long	brg_clk;
#ifdef CONFIG_PCI
	unsigned long	pci_clk;
#endif
#endif
	unsigned long   mem_clk;
#if defined(CONFIG_MPC83xx)
	/* There are other clocks in the MPC83XX */
	u32 csb_clk;
#if defined(CONFIG_MPC8308) || defined(CONFIG_MPC831x) || \
	defined(CONFIG_MPC834x) || defined(CONFIG_MPC837x)
	u32 tsec1_clk;
	u32 tsec2_clk;
	u32 usbdr_clk;
#endif
#if defined (CONFIG_MPC834x)
	u32 usbmph_clk;
#endif /* CONFIG_MPC834x */
#if defined(CONFIG_MPC8315)
	u32 tdm_clk;
#endif
	u32 core_clk;
	u32 enc_clk;
	u32 lbiu_clk;
	u32 lclk_clk;
	u32 pci_clk;
#if defined(CONFIG_MPC8308) || defined(CONFIG_MPC831x) || \
	defined(CONFIG_MPC837x)
	u32 pciexp1_clk;
	u32 pciexp2_clk;
#endif
#if defined(CONFIG_MPC837x) || defined(CONFIG_MPC8315)
	u32 sata_clk;
#endif
#if defined(CONFIG_MPC8360)
	u32  mem_sec_clk;
#endif /* CONFIG_MPC8360 */
#endif
#if defined(CONFIG_FSL_ESDHC)
	u32 sdhc_clk;
#endif
#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
	u32 lbc_clk;
	void *cpu;
#endif /* CONFIG_MPC85xx || CONFIG_MPC86xx */
#if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
	u32 i2c1_clk;
	u32 i2c2_clk;
#endif
#if defined(CONFIG_QE)
	u32 qe_clk;
	u32 brg_clk;
	uint mp_alloc_base;
	uint mp_alloc_top;
#endif /* CONFIG_QE */
#if defined(CONFIG_FSL_LAW)
	u32 used_laws;
#endif
#if defined(CONFIG_E500)
	u32 used_tlb_cams[(CONFIG_SYS_NUM_TLBCAMS+31)/32];
#endif
#if defined(CONFIG_MPC5xxx)
	unsigned long	ipb_clk;
	unsigned long	pci_clk;
#endif
#if defined(CONFIG_MPC512X)
	u32 ips_clk;
	u32 csb_clk;
	u32 pci_clk;
#endif /* CONFIG_MPC512X */
#if defined(CONFIG_MPC8220)
	unsigned long   bExtUart;
	unsigned long   inp_clk;
	unsigned long   pci_clk;
	unsigned long   vco_clk;
	unsigned long   pev_clk;
	unsigned long   flb_clk;
#endif
	phys_size_t	ram_size;	/* RAM size */
	unsigned long	reset_status;	/* reset status register at boot	*/
#if defined(CONFIG_MPC83xx)
	unsigned long	arbiter_event_attributes;
	unsigned long	arbiter_event_address;
#endif
	unsigned long	env_addr;	/* Address  of Environment struct	*/
	unsigned long	env_valid;	/* Checksum of Environment valid?	*/
	unsigned long	have_console;	/* serial_init() was called		*/
#if defined(CONFIG_SYS_ALLOC_DPRAM) || defined(CONFIG_CPM2)
	unsigned int	dp_alloc_base;
	unsigned int	dp_alloc_top;
#endif
#if defined(CONFIG_4xx)
	u32  uart_clk;
#endif /* CONFIG_4xx */
#if defined(CONFIG_SYS_GT_6426x)
	unsigned int	mirror_hack[16];
#endif
#if defined(CONFIG_A3000)	|| \
    defined(CONFIG_HIDDEN_DRAGON)  || \
    defined(CONFIG_MUSENKI)	||  \
    defined(CONFIG_SANDPOINT)
	void *		console_addr;
#endif
	unsigned long	relocaddr;	/* Start address of U-Boot in RAM */
#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
	unsigned long	fb_base;	/* Base address of framebuffer memory	*/
#endif
#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
	unsigned long	post_log_word;  /* Record POST activities */
	unsigned long	post_init_f_time;  /* When post_init_f started */
#endif
#ifdef CONFIG_BOARD_TYPES
	unsigned long	board_type;
#endif
#ifdef CONFIG_MODEM_SUPPORT
	unsigned long do_mdm_init;
	unsigned long be_quiet;
#endif
#if defined(CONFIG_LWMON) || defined(CONFIG_LWMON5)
	unsigned long kbd_status;
#endif
#if defined(CONFIG_WD_MAX_RATE)
	unsigned long long wdt_last;	/* trace watch-dog triggering rate */
#endif
	void		**jt;		/* jump table */
	char		env_buf[32];	/* buffer for getenv() before reloc. */
} gd_t;

/*
 * 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	/* Environment imported into hash table	*/

#if 1
#define DECLARE_GLOBAL_DATA_PTR     register volatile gd_t *gd asm ("r2")
#else /* We could use plain global data, but the resulting code is bigger */
#define XTRN_DECLARE_GLOBAL_DATA_PTR	extern
#define DECLARE_GLOBAL_DATA_PTR     XTRN_DECLARE_GLOBAL_DATA_PTR \
				    gd_t *gd
#endif

#endif /* __ASM_GBL_DATA_H */