mirror of
				https://github.com/smaeul/u-boot.git
				synced 2025-11-04 14:00:19 +00:00 
			
		
		
		
	This function is used before jumping to U-Boot, but in that case we don't always want to disable caches. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
		
			
				
	
	
		
			1019 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			1019 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
 | 
						|
 * (C) Copyright 2000-2009
 | 
						|
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 | 
						|
 *
 | 
						|
 * SPDX-License-Identifier:	GPL-2.0+
 | 
						|
 */
 | 
						|
 | 
						|
#ifndef __COMMON_H_
 | 
						|
#define __COMMON_H_	1
 | 
						|
 | 
						|
#ifndef __ASSEMBLY__		/* put C only stuff in this section */
 | 
						|
 | 
						|
typedef unsigned char		uchar;
 | 
						|
typedef volatile unsigned long	vu_long;
 | 
						|
typedef volatile unsigned short vu_short;
 | 
						|
typedef volatile unsigned char	vu_char;
 | 
						|
 | 
						|
#include <config.h>
 | 
						|
#include <asm-offsets.h>
 | 
						|
#include <linux/bitops.h>
 | 
						|
#include <linux/types.h>
 | 
						|
#include <linux/string.h>
 | 
						|
#include <linux/stringify.h>
 | 
						|
#include <asm/ptrace.h>
 | 
						|
#include <stdarg.h>
 | 
						|
#include <linux/kernel.h>
 | 
						|
#if defined(CONFIG_PCI) && defined(CONFIG_4xx)
 | 
						|
#include <pci.h>
 | 
						|
#endif
 | 
						|
#if defined(CONFIG_8xx)
 | 
						|
#include <asm/8xx_immap.h>
 | 
						|
#if defined(CONFIG_MPC859)	|| defined(CONFIG_MPC859T)	|| \
 | 
						|
    defined(CONFIG_MPC866)	|| \
 | 
						|
    defined(CONFIG_MPC866P)
 | 
						|
# define CONFIG_MPC866_FAMILY 1
 | 
						|
#elif defined(CONFIG_MPC885)
 | 
						|
# define CONFIG_MPC885_FAMILY   1
 | 
						|
#endif
 | 
						|
#if   defined(CONFIG_MPC860)	   \
 | 
						|
   || defined(CONFIG_MPC860T)	   \
 | 
						|
   || defined(CONFIG_MPC866_FAMILY) \
 | 
						|
   || defined(CONFIG_MPC885_FAMILY)
 | 
						|
# define CONFIG_MPC86x 1
 | 
						|
#endif
 | 
						|
#elif defined(CONFIG_5xx)
 | 
						|
#include <asm/5xx_immap.h>
 | 
						|
#elif defined(CONFIG_MPC5xxx)
 | 
						|
#include <mpc5xxx.h>
 | 
						|
#elif defined(CONFIG_MPC512X)
 | 
						|
#include <asm/immap_512x.h>
 | 
						|
#elif defined(CONFIG_MPC8260)
 | 
						|
#if   defined(CONFIG_MPC8247) \
 | 
						|
   || defined(CONFIG_MPC8272)
 | 
						|
#define CONFIG_MPC8272_FAMILY	1
 | 
						|
#endif
 | 
						|
#include <asm/immap_8260.h>
 | 
						|
#endif
 | 
						|
#ifdef CONFIG_MPC86xx
 | 
						|
#include <mpc86xx.h>
 | 
						|
#include <asm/immap_86xx.h>
 | 
						|
#endif
 | 
						|
#ifdef CONFIG_MPC85xx
 | 
						|
#include <mpc85xx.h>
 | 
						|
#include <asm/immap_85xx.h>
 | 
						|
#endif
 | 
						|
#ifdef CONFIG_MPC83xx
 | 
						|
#include <mpc83xx.h>
 | 
						|
#include <asm/immap_83xx.h>
 | 
						|
#endif
 | 
						|
#ifdef	CONFIG_4xx
 | 
						|
#include <asm/ppc4xx.h>
 | 
						|
#endif
 | 
						|
#ifdef CONFIG_BLACKFIN
 | 
						|
#include <asm/blackfin.h>
 | 
						|
#endif
 | 
						|
#ifdef CONFIG_SOC_DA8XX
 | 
						|
#include <asm/arch/hardware.h>
 | 
						|
#endif
 | 
						|
 | 
						|
#include <part.h>
 | 
						|
#include <flash.h>
 | 
						|
#include <image.h>
 | 
						|
 | 
						|
/* Bring in printf format macros if inttypes.h is included */
 | 
						|
#define __STDC_FORMAT_MACROS
 | 
						|
 | 
						|
#ifdef __LP64__
 | 
						|
#define CONFIG_SYS_SUPPORT_64BIT_DATA
 | 
						|
#endif
 | 
						|
 | 
						|
#ifdef DEBUG
 | 
						|
#define _DEBUG	1
 | 
						|
#else
 | 
						|
#define _DEBUG	0
 | 
						|
#endif
 | 
						|
 | 
						|
#ifndef pr_fmt
 | 
						|
#define pr_fmt(fmt) fmt
 | 
						|
#endif
 | 
						|
 | 
						|
/*
 | 
						|
 * Output a debug text when condition "cond" is met. The "cond" should be
 | 
						|
 * computed by a preprocessor in the best case, allowing for the best
 | 
						|
 * optimization.
 | 
						|
 */
 | 
						|
#define debug_cond(cond, fmt, args...)			\
 | 
						|
	do {						\
 | 
						|
		if (cond)				\
 | 
						|
			printf(pr_fmt(fmt), ##args);	\
 | 
						|
	} while (0)
 | 
						|
 | 
						|
#define debug(fmt, args...)			\
 | 
						|
	debug_cond(_DEBUG, fmt, ##args)
 | 
						|
 | 
						|
/*
 | 
						|
 * An assertion is run-time check done in debug mode only. If DEBUG is not
 | 
						|
 * defined then it is skipped. If DEBUG is defined and the assertion fails,
 | 
						|
 * then it calls panic*( which may or may not reset/halt U-Boot (see
 | 
						|
 * CONFIG_PANIC_HANG), It is hoped that all failing assertions are found
 | 
						|
 * before release, and after release it is hoped that they don't matter. But
 | 
						|
 * in any case these failing assertions cannot be fixed with a reset (which
 | 
						|
 * may just do the same assertion again).
 | 
						|
 */
 | 
						|
void __assert_fail(const char *assertion, const char *file, unsigned line,
 | 
						|
		   const char *function);
 | 
						|
#define assert(x) \
 | 
						|
	({ if (!(x) && _DEBUG) \
 | 
						|
		__assert_fail(#x, __FILE__, __LINE__, __func__); })
 | 
						|
 | 
						|
#define error(fmt, args...) do {					\
 | 
						|
		printf("ERROR: " pr_fmt(fmt) "\nat %s:%d/%s()\n",	\
 | 
						|
			##args, __FILE__, __LINE__, __func__);		\
 | 
						|
} while (0)
 | 
						|
 | 
						|
#ifndef BUG
 | 
						|
#define BUG() do { \
 | 
						|
	printf("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
 | 
						|
	panic("BUG!"); \
 | 
						|
} while (0)
 | 
						|
#define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0)
 | 
						|
#endif /* BUG */
 | 
						|
 | 
						|
/* Force a compilation error if condition is true */
 | 
						|
#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
 | 
						|
 | 
						|
typedef void (interrupt_handler_t)(void *);
 | 
						|
 | 
						|
#include <asm/u-boot.h> /* boot information for Linux kernel */
 | 
						|
#include <asm/global_data.h>	/* global data used for startup functions */
 | 
						|
 | 
						|
/*
 | 
						|
 * enable common handling for all TQM8xxL/M boards:
 | 
						|
 * - CONFIG_TQM8xxM will be defined for all TQM8xxM boards
 | 
						|
 * - CONFIG_TQM8xxL will be defined for all TQM8xxL _and_ TQM8xxM boards
 | 
						|
 *                  and for the TQM885D board
 | 
						|
 */
 | 
						|
#if defined(CONFIG_TQM823M) || defined(CONFIG_TQM850M) || \
 | 
						|
    defined(CONFIG_TQM855M) || defined(CONFIG_TQM860M) || \
 | 
						|
    defined(CONFIG_TQM862M) || defined(CONFIG_TQM866M)
 | 
						|
# ifndef CONFIG_TQM8xxM
 | 
						|
#  define CONFIG_TQM8xxM
 | 
						|
# endif
 | 
						|
#endif
 | 
						|
#if defined(CONFIG_TQM823L) || defined(CONFIG_TQM850L) || \
 | 
						|
    defined(CONFIG_TQM855L) || defined(CONFIG_TQM860L) || \
 | 
						|
    defined(CONFIG_TQM862L) || defined(CONFIG_TQM8xxM) || \
 | 
						|
    defined(CONFIG_TQM885D)
 | 
						|
# ifndef CONFIG_TQM8xxL
 | 
						|
#  define CONFIG_TQM8xxL
 | 
						|
# endif
 | 
						|
#endif
 | 
						|
 | 
						|
#if defined(CONFIG_ENV_IS_EMBEDDED)
 | 
						|
#define TOTAL_MALLOC_LEN	CONFIG_SYS_MALLOC_LEN
 | 
						|
#elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
 | 
						|
	(CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
 | 
						|
      defined(CONFIG_ENV_IS_IN_NVRAM)
 | 
						|
#define	TOTAL_MALLOC_LEN	(CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
 | 
						|
#else
 | 
						|
#define	TOTAL_MALLOC_LEN	CONFIG_SYS_MALLOC_LEN
 | 
						|
#endif
 | 
						|
 | 
						|
/*
 | 
						|
 * Function Prototypes
 | 
						|
 */
 | 
						|
int dram_init(void);
 | 
						|
 | 
						|
void	hang		(void) __attribute__ ((noreturn));
 | 
						|
 | 
						|
int	timer_init(void);
 | 
						|
int	cpu_init(void);
 | 
						|
 | 
						|
/* */
 | 
						|
phys_size_t initdram (int);
 | 
						|
 | 
						|
#include <display_options.h>
 | 
						|
 | 
						|
/* common/main.c */
 | 
						|
void	main_loop	(void);
 | 
						|
int run_command(const char *cmd, int flag);
 | 
						|
int run_command_repeatable(const char *cmd, int flag);
 | 
						|
 | 
						|
/**
 | 
						|
 * Run a list of commands separated by ; or even \0
 | 
						|
 *
 | 
						|
 * Note that if 'len' is not -1, then the command does not need to be nul
 | 
						|
 * terminated, Memory will be allocated for the command in that case.
 | 
						|
 *
 | 
						|
 * @param cmd	List of commands to run, each separated bu semicolon
 | 
						|
 * @param len	Length of commands excluding terminator if known (-1 if not)
 | 
						|
 * @param flag	Execution flags (CMD_FLAG_...)
 | 
						|
 * @return 0 on success, or != 0 on error.
 | 
						|
 */
 | 
						|
int run_command_list(const char *cmd, int len, int flag);
 | 
						|
extern char console_buffer[];
 | 
						|
 | 
						|
/* arch/$(ARCH)/lib/board.c */
 | 
						|
void board_init_f(ulong);
 | 
						|
void board_init_r(gd_t *, ulong) __attribute__ ((noreturn));
 | 
						|
int checkboard(void);
 | 
						|
int show_board_info(void);
 | 
						|
int checkflash(void);
 | 
						|
int checkdram(void);
 | 
						|
int last_stage_init(void);
 | 
						|
extern ulong monitor_flash_len;
 | 
						|
int mac_read_from_eeprom(void);
 | 
						|
extern u8 __dtb_dt_begin[];	/* embedded device tree blob */
 | 
						|
int set_cpu_clk_info(void);
 | 
						|
int mdm_init(void);
 | 
						|
#if defined(CONFIG_DISPLAY_CPUINFO)
 | 
						|
int print_cpuinfo(void);
 | 
						|
#else
 | 
						|
static inline int print_cpuinfo(void)
 | 
						|
{
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
#endif
 | 
						|
int update_flash_size(int flash_size);
 | 
						|
int arch_early_init_r(void);
 | 
						|
 | 
						|
/**
 | 
						|
 * arch_cpu_init_dm() - init CPU after driver model is available
 | 
						|
 *
 | 
						|
 * This is called immediately after driver model is available before
 | 
						|
 * relocation. This is similar to arch_cpu_init() but is able to reference
 | 
						|
 * devices
 | 
						|
 *
 | 
						|
 * @return 0 if OK, -ve on error
 | 
						|
 */
 | 
						|
int arch_cpu_init_dm(void);
 | 
						|
 | 
						|
/**
 | 
						|
 * Reserve all necessary stacks
 | 
						|
 *
 | 
						|
 * This is used in generic board init sequence in common/board_f.c. Each
 | 
						|
 * architecture could provide this function to tailor the required stacks.
 | 
						|
 *
 | 
						|
 * On entry gd->start_addr_sp is pointing to the suggested top of the stack.
 | 
						|
 * The callee ensures gd->start_add_sp is 16-byte aligned, so architectures
 | 
						|
 * require only this can leave it untouched.
 | 
						|
 *
 | 
						|
 * On exit gd->start_addr_sp and gd->irq_sp should be set to the respective
 | 
						|
 * positions of the stack. The stack pointer(s) will be set to this later.
 | 
						|
 * gd->irq_sp is only required, if the architecture needs it.
 | 
						|
 *
 | 
						|
 * @return 0 if no error
 | 
						|
 */
 | 
						|
__weak int arch_reserve_stacks(void);
 | 
						|
 | 
						|
/**
 | 
						|
 * Show the DRAM size in a board-specific way
 | 
						|
 *
 | 
						|
 * This is used by boards to display DRAM information in their own way.
 | 
						|
 *
 | 
						|
 * @param size	Size of DRAM (which should be displayed along with other info)
 | 
						|
 */
 | 
						|
void board_show_dram(phys_size_t size);
 | 
						|
 | 
						|
/**
 | 
						|
 * arch_fixup_fdt() - Write arch-specific information to fdt
 | 
						|
 *
 | 
						|
 * Defined in arch/$(ARCH)/lib/bootm-fdt.c
 | 
						|
 *
 | 
						|
 * @blob:	FDT blob to write to
 | 
						|
 * @return 0 if ok, or -ve FDT_ERR_... on failure
 | 
						|
 */
 | 
						|
int arch_fixup_fdt(void *blob);
 | 
						|
 | 
						|
/* common/flash.c */
 | 
						|
void flash_perror (int);
 | 
						|
 | 
						|
/* common/cmd_source.c */
 | 
						|
int	source (ulong addr, const char *fit_uname);
 | 
						|
 | 
						|
extern ulong load_addr;		/* Default Load Address */
 | 
						|
extern ulong save_addr;		/* Default Save Address */
 | 
						|
extern ulong save_size;		/* Default Save Size */
 | 
						|
 | 
						|
/* common/cmd_doc.c */
 | 
						|
void	doc_probe(unsigned long physadr);
 | 
						|
 | 
						|
/* common/cmd_net.c */
 | 
						|
int do_tftpb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 | 
						|
 | 
						|
/* common/cmd_fat.c */
 | 
						|
int do_fat_fsload(cmd_tbl_t *, int, int, char * const []);
 | 
						|
 | 
						|
/* common/cmd_ext2.c */
 | 
						|
int do_ext2load(cmd_tbl_t *, int, int, char * const []);
 | 
						|
 | 
						|
/* common/cmd_nvedit.c */
 | 
						|
int	env_init     (void);
 | 
						|
void	env_relocate (void);
 | 
						|
int	envmatch     (uchar *, int);
 | 
						|
 | 
						|
/* Avoid unfortunate conflict with libc's getenv() */
 | 
						|
#ifdef CONFIG_SANDBOX
 | 
						|
#define getenv uboot_getenv
 | 
						|
#endif
 | 
						|
char	*getenv	     (const char *);
 | 
						|
int	getenv_f     (const char *name, char *buf, unsigned len);
 | 
						|
ulong getenv_ulong(const char *name, int base, ulong default_val);
 | 
						|
 | 
						|
/**
 | 
						|
 * getenv_hex() - Return an environment variable as a hex value
 | 
						|
 *
 | 
						|
 * Decode an environment as a hex number (it may or may not have a 0x
 | 
						|
 * prefix). If the environment variable cannot be found, or does not start
 | 
						|
 * with hex digits, the default value is returned.
 | 
						|
 *
 | 
						|
 * @varname:		Variable to decode
 | 
						|
 * @default_val:	Value to return on error
 | 
						|
 */
 | 
						|
ulong getenv_hex(const char *varname, ulong default_val);
 | 
						|
 | 
						|
/*
 | 
						|
 * Read an environment variable as a boolean
 | 
						|
 * Return -1 if variable does not exist (default to true)
 | 
						|
 */
 | 
						|
int getenv_yesno(const char *var);
 | 
						|
int	saveenv	     (void);
 | 
						|
int	setenv	     (const char *, const char *);
 | 
						|
int setenv_ulong(const char *varname, ulong value);
 | 
						|
int setenv_hex(const char *varname, ulong value);
 | 
						|
/**
 | 
						|
 * setenv_addr - Set an environment variable to an address in hex
 | 
						|
 *
 | 
						|
 * @varname:	Environment variable to set
 | 
						|
 * @addr:	Value to set it to
 | 
						|
 * @return 0 if ok, 1 on error
 | 
						|
 */
 | 
						|
static inline int setenv_addr(const char *varname, const void *addr)
 | 
						|
{
 | 
						|
	return setenv_hex(varname, (ulong)addr);
 | 
						|
}
 | 
						|
 | 
						|
#ifdef CONFIG_ARM
 | 
						|
# include <asm/mach-types.h>
 | 
						|
# include <asm/setup.h>
 | 
						|
# include <asm/u-boot-arm.h>	/* ARM version to be fixed! */
 | 
						|
#endif /* CONFIG_ARM */
 | 
						|
#ifdef CONFIG_X86		/* x86 version to be fixed! */
 | 
						|
# include <asm/u-boot-x86.h>
 | 
						|
#endif /* CONFIG_X86 */
 | 
						|
#ifdef CONFIG_SANDBOX
 | 
						|
# include <asm/u-boot-sandbox.h>	/* TODO(sjg) what needs to be fixed? */
 | 
						|
#endif
 | 
						|
#ifdef CONFIG_NDS32
 | 
						|
# include <asm/mach-types.h>
 | 
						|
# include <asm/setup.h>
 | 
						|
# include <asm/u-boot-nds32.h>
 | 
						|
#endif /* CONFIG_NDS32 */
 | 
						|
#ifdef CONFIG_MIPS
 | 
						|
# include <asm/u-boot-mips.h>
 | 
						|
#endif /* CONFIG_MIPS */
 | 
						|
#ifdef CONFIG_ARC
 | 
						|
# include <asm/u-boot-arc.h>
 | 
						|
#endif /* CONFIG_ARC */
 | 
						|
 | 
						|
#ifdef CONFIG_AUTO_COMPLETE
 | 
						|
int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf);
 | 
						|
#endif
 | 
						|
int get_env_id (void);
 | 
						|
 | 
						|
void	pci_init      (void);
 | 
						|
void	pci_init_board(void);
 | 
						|
void	pciinfo	      (int, int);
 | 
						|
 | 
						|
#if defined(CONFIG_PCI) && defined(CONFIG_4xx)
 | 
						|
    int	   pci_pre_init	       (struct pci_controller *);
 | 
						|
    int	   is_pci_host	       (struct pci_controller *);
 | 
						|
#endif
 | 
						|
 | 
						|
#if defined(CONFIG_PCI) && (defined(CONFIG_440) || defined(CONFIG_405EX))
 | 
						|
#   if defined(CONFIG_SYS_PCI_TARGET_INIT)
 | 
						|
	void	pci_target_init	     (struct pci_controller *);
 | 
						|
#   endif
 | 
						|
#   if defined(CONFIG_SYS_PCI_MASTER_INIT)
 | 
						|
	void	pci_master_init	     (struct pci_controller *);
 | 
						|
#   endif
 | 
						|
#if defined(CONFIG_440SPE) || \
 | 
						|
    defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
 | 
						|
    defined(CONFIG_405EX)
 | 
						|
   void pcie_setup_hoses(int busno);
 | 
						|
#endif
 | 
						|
#endif
 | 
						|
 | 
						|
int	misc_init_f   (void);
 | 
						|
int	misc_init_r   (void);
 | 
						|
 | 
						|
/* common/exports.c */
 | 
						|
void	jumptable_init(void);
 | 
						|
 | 
						|
/* common/kallsysm.c */
 | 
						|
const char *symbol_lookup(unsigned long addr, unsigned long *caddr);
 | 
						|
 | 
						|
/* api/api.c */
 | 
						|
void	api_init (void);
 | 
						|
 | 
						|
/* common/memsize.c */
 | 
						|
long	get_ram_size  (long *, long);
 | 
						|
phys_size_t get_effective_memsize(void);
 | 
						|
 | 
						|
/* $(BOARD)/$(BOARD).c */
 | 
						|
void	reset_phy     (void);
 | 
						|
void	fdc_hw_init   (void);
 | 
						|
 | 
						|
/* $(BOARD)/eeprom.c */
 | 
						|
void eeprom_init  (void);
 | 
						|
#ifndef CONFIG_SPI
 | 
						|
int  eeprom_probe (unsigned dev_addr, unsigned offset);
 | 
						|
#endif
 | 
						|
int  eeprom_read  (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
 | 
						|
int  eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
 | 
						|
 | 
						|
/*
 | 
						|
 * Set this up regardless of board
 | 
						|
 * type, to prevent errors.
 | 
						|
 */
 | 
						|
#if defined(CONFIG_SPI) || !defined(CONFIG_SYS_I2C_EEPROM_ADDR)
 | 
						|
# define CONFIG_SYS_DEF_EEPROM_ADDR 0
 | 
						|
#else
 | 
						|
#if !defined(CONFIG_ENV_EEPROM_IS_ON_I2C)
 | 
						|
# define CONFIG_SYS_DEF_EEPROM_ADDR CONFIG_SYS_I2C_EEPROM_ADDR
 | 
						|
#endif
 | 
						|
#endif /* CONFIG_SPI || !defined(CONFIG_SYS_I2C_EEPROM_ADDR) */
 | 
						|
 | 
						|
#if defined(CONFIG_SPI)
 | 
						|
extern void spi_init_f (void);
 | 
						|
extern void spi_init_r (void);
 | 
						|
extern ssize_t spi_read	 (uchar *, int, uchar *, int);
 | 
						|
extern ssize_t spi_write (uchar *, int, uchar *, int);
 | 
						|
#endif
 | 
						|
 | 
						|
/* $(BOARD)/$(BOARD).c */
 | 
						|
int board_early_init_f (void);
 | 
						|
int board_late_init (void);
 | 
						|
int board_postclk_init (void); /* after clocks/timebase, before env/serial */
 | 
						|
int board_early_init_r (void);
 | 
						|
void board_poweroff (void);
 | 
						|
 | 
						|
#if defined(CONFIG_SYS_DRAM_TEST)
 | 
						|
int testdram(void);
 | 
						|
#endif /* CONFIG_SYS_DRAM_TEST */
 | 
						|
 | 
						|
/* $(CPU)/start.S */
 | 
						|
#if defined(CONFIG_5xx) || \
 | 
						|
    defined(CONFIG_8xx)
 | 
						|
uint	get_immr      (uint);
 | 
						|
#endif
 | 
						|
#if defined(CONFIG_MPC5xxx)
 | 
						|
uint	get_svr       (void);
 | 
						|
#endif
 | 
						|
uint	get_pvr	      (void);
 | 
						|
uint	get_svr	      (void);
 | 
						|
uint	rd_ic_cst     (void);
 | 
						|
void	wr_ic_cst     (uint);
 | 
						|
void	wr_ic_adr     (uint);
 | 
						|
uint	rd_dc_cst     (void);
 | 
						|
void	wr_dc_cst     (uint);
 | 
						|
void	wr_dc_adr     (uint);
 | 
						|
int	icache_status (void);
 | 
						|
void	icache_enable (void);
 | 
						|
void	icache_disable(void);
 | 
						|
int	dcache_status (void);
 | 
						|
void	dcache_enable (void);
 | 
						|
void	dcache_disable(void);
 | 
						|
void	mmu_disable(void);
 | 
						|
#if defined(CONFIG_ARM)
 | 
						|
void	relocate_code(ulong);
 | 
						|
#else
 | 
						|
void	relocate_code(ulong, gd_t *, ulong) __attribute__ ((noreturn));
 | 
						|
#endif
 | 
						|
ulong	get_endaddr   (void);
 | 
						|
void	trap_init     (ulong);
 | 
						|
#if defined (CONFIG_4xx)	|| \
 | 
						|
    defined (CONFIG_MPC5xxx)	|| \
 | 
						|
    defined (CONFIG_MPC85xx)	|| \
 | 
						|
    defined (CONFIG_MPC86xx)	|| \
 | 
						|
    defined (CONFIG_MPC83xx)
 | 
						|
unsigned char	in8(unsigned int);
 | 
						|
void		out8(unsigned int, unsigned char);
 | 
						|
unsigned short	in16(unsigned int);
 | 
						|
unsigned short	in16r(unsigned int);
 | 
						|
void		out16(unsigned int, unsigned short value);
 | 
						|
void		out16r(unsigned int, unsigned short value);
 | 
						|
unsigned long	in32(unsigned int);
 | 
						|
unsigned long	in32r(unsigned int);
 | 
						|
void		out32(unsigned int, unsigned long value);
 | 
						|
void		out32r(unsigned int, unsigned long value);
 | 
						|
void		ppcDcbf(unsigned long value);
 | 
						|
void		ppcDcbi(unsigned long value);
 | 
						|
void		ppcSync(void);
 | 
						|
void		ppcDcbz(unsigned long value);
 | 
						|
#endif
 | 
						|
#if defined (CONFIG_MICROBLAZE)
 | 
						|
unsigned short	in16(unsigned int);
 | 
						|
void		out16(unsigned int, unsigned short value);
 | 
						|
#endif
 | 
						|
 | 
						|
#if defined (CONFIG_MPC83xx)
 | 
						|
void		ppcDWload(unsigned int *addr, unsigned int *ret);
 | 
						|
void		ppcDWstore(unsigned int *addr, unsigned int *value);
 | 
						|
void disable_addr_trans(void);
 | 
						|
void enable_addr_trans(void);
 | 
						|
#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
 | 
						|
void ddr_enable_ecc(unsigned int dram_size);
 | 
						|
#endif
 | 
						|
#endif
 | 
						|
 | 
						|
/*
 | 
						|
 * Return the current value of a monotonically increasing microsecond timer.
 | 
						|
 * Granularity may be larger than 1us if hardware does not support this.
 | 
						|
 */
 | 
						|
ulong timer_get_us(void);
 | 
						|
 | 
						|
/* $(CPU)/cpu.c */
 | 
						|
static inline int cpumask_next(int cpu, unsigned int mask)
 | 
						|
{
 | 
						|
	for (cpu++; !((1 << cpu) & mask); cpu++)
 | 
						|
		;
 | 
						|
 | 
						|
	return cpu;
 | 
						|
}
 | 
						|
 | 
						|
#define for_each_cpu(iter, cpu, num_cpus, mask) \
 | 
						|
	for (iter = 0, cpu = cpumask_next(-1, mask); \
 | 
						|
		iter < num_cpus; \
 | 
						|
		iter++, cpu = cpumask_next(cpu, mask)) \
 | 
						|
 | 
						|
int	cpu_numcores  (void);
 | 
						|
int	cpu_num_dspcores(void);
 | 
						|
u32	cpu_mask      (void);
 | 
						|
u32	cpu_dsp_mask(void);
 | 
						|
int	is_core_valid (unsigned int);
 | 
						|
int	probecpu      (void);
 | 
						|
int	checkcpu      (void);
 | 
						|
int	checkicache   (void);
 | 
						|
int	checkdcache   (void);
 | 
						|
void	upmconfig     (unsigned int, unsigned int *, unsigned int);
 | 
						|
ulong	get_tbclk     (void);
 | 
						|
void	reset_misc    (void);
 | 
						|
void	reset_cpu     (ulong addr);
 | 
						|
#if defined (CONFIG_OF_LIBFDT) && defined (CONFIG_OF_BOARD_SETUP)
 | 
						|
void ft_cpu_setup(void *blob, bd_t *bd);
 | 
						|
#ifdef CONFIG_PCI
 | 
						|
void ft_pci_setup(void *blob, bd_t *bd);
 | 
						|
#endif
 | 
						|
#endif
 | 
						|
 | 
						|
void smp_set_core_boot_addr(unsigned long addr, int corenr);
 | 
						|
void smp_kick_all_cpus(void);
 | 
						|
 | 
						|
/* $(CPU)/serial.c */
 | 
						|
int	serial_init   (void);
 | 
						|
void	serial_setbrg (void);
 | 
						|
void	serial_putc   (const char);
 | 
						|
void	serial_putc_raw(const char);
 | 
						|
void	serial_puts   (const char *);
 | 
						|
int	serial_getc   (void);
 | 
						|
int	serial_tstc   (void);
 | 
						|
 | 
						|
/* These versions take a stdio_dev pointer */
 | 
						|
struct stdio_dev;
 | 
						|
int serial_stub_getc(struct stdio_dev *sdev);
 | 
						|
int serial_stub_tstc(struct stdio_dev *sdev);
 | 
						|
 | 
						|
/* $(CPU)/speed.c */
 | 
						|
int	get_clocks (void);
 | 
						|
int	get_clocks_866 (void);
 | 
						|
int	sdram_adjust_866 (void);
 | 
						|
int	adjust_sdram_tbs_8xx (void);
 | 
						|
#if defined(CONFIG_MPC8260)
 | 
						|
int	prt_8260_clks (void);
 | 
						|
#elif defined(CONFIG_MPC5xxx)
 | 
						|
int	prt_mpc5xxx_clks (void);
 | 
						|
#endif
 | 
						|
#ifdef CONFIG_4xx
 | 
						|
ulong	get_OPB_freq (void);
 | 
						|
ulong	get_PCI_freq (void);
 | 
						|
#endif
 | 
						|
#if defined(CONFIG_S3C24X0) || \
 | 
						|
    defined(CONFIG_LH7A40X) || \
 | 
						|
    defined(CONFIG_EP93XX)
 | 
						|
ulong	get_FCLK (void);
 | 
						|
ulong	get_HCLK (void);
 | 
						|
ulong	get_PCLK (void);
 | 
						|
ulong	get_UCLK (void);
 | 
						|
#endif
 | 
						|
#if defined(CONFIG_LH7A40X)
 | 
						|
ulong	get_PLLCLK (void);
 | 
						|
#endif
 | 
						|
#if defined(CONFIG_IMX)
 | 
						|
ulong get_systemPLLCLK(void);
 | 
						|
ulong get_FCLK(void);
 | 
						|
ulong get_HCLK(void);
 | 
						|
ulong get_BCLK(void);
 | 
						|
ulong get_PERCLK1(void);
 | 
						|
ulong get_PERCLK2(void);
 | 
						|
ulong get_PERCLK3(void);
 | 
						|
#endif
 | 
						|
ulong	get_bus_freq  (ulong);
 | 
						|
int get_serial_clock(void);
 | 
						|
 | 
						|
#if defined(CONFIG_MPC85xx)
 | 
						|
typedef MPC85xx_SYS_INFO sys_info_t;
 | 
						|
void	get_sys_info  ( sys_info_t * );
 | 
						|
#  if defined(CONFIG_OF_LIBFDT)
 | 
						|
	void ft_fixup_cpu(void *, u64);
 | 
						|
	void ft_fixup_num_cores(void *);
 | 
						|
#  endif
 | 
						|
#endif
 | 
						|
#if defined(CONFIG_MPC86xx)
 | 
						|
typedef MPC86xx_SYS_INFO sys_info_t;
 | 
						|
void   get_sys_info  ( sys_info_t * );
 | 
						|
static inline ulong get_ddr_freq(ulong dummy)
 | 
						|
{
 | 
						|
	return get_bus_freq(dummy);
 | 
						|
}
 | 
						|
#else
 | 
						|
ulong get_ddr_freq(ulong);
 | 
						|
#endif
 | 
						|
 | 
						|
#if defined(CONFIG_4xx)
 | 
						|
#  if defined(CONFIG_440)
 | 
						|
#	if defined(CONFIG_440SPE)
 | 
						|
	 unsigned long determine_sysper(void);
 | 
						|
	 unsigned long determine_pci_clock_per(void);
 | 
						|
#	endif
 | 
						|
#  endif
 | 
						|
typedef PPC4xx_SYS_INFO sys_info_t;
 | 
						|
int	ppc440spe_revB(void);
 | 
						|
void	get_sys_info  ( sys_info_t * );
 | 
						|
#endif
 | 
						|
 | 
						|
/* $(CPU)/cpu_init.c */
 | 
						|
#if defined(CONFIG_8xx) || defined(CONFIG_MPC8260)
 | 
						|
void	cpu_init_f    (volatile immap_t *immr);
 | 
						|
#endif
 | 
						|
#if defined(CONFIG_4xx) || defined(CONFIG_MCF52x2) || defined(CONFIG_MPC86xx)
 | 
						|
void	cpu_init_f    (void);
 | 
						|
#endif
 | 
						|
#ifdef CONFIG_MPC85xx
 | 
						|
ulong cpu_init_f(void);
 | 
						|
#endif
 | 
						|
 | 
						|
int	cpu_init_r    (void);
 | 
						|
#if defined(CONFIG_MPC8260)
 | 
						|
int	prt_8260_rsr  (void);
 | 
						|
#elif defined(CONFIG_MPC83xx)
 | 
						|
int	prt_83xx_rsr  (void);
 | 
						|
#endif
 | 
						|
 | 
						|
/* $(CPU)/interrupts.c */
 | 
						|
int	interrupt_init	   (void);
 | 
						|
void	timer_interrupt	   (struct pt_regs *);
 | 
						|
void	external_interrupt (struct pt_regs *);
 | 
						|
void	irq_install_handler(int, interrupt_handler_t *, void *);
 | 
						|
void	irq_free_handler   (int);
 | 
						|
void	reset_timer	   (void);
 | 
						|
ulong	get_timer	   (ulong base);
 | 
						|
 | 
						|
/* Return value of monotonic microsecond timer */
 | 
						|
unsigned long timer_get_us(void);
 | 
						|
 | 
						|
void	enable_interrupts  (void);
 | 
						|
int	disable_interrupts (void);
 | 
						|
 | 
						|
/* $(CPU)/.../commproc.c */
 | 
						|
int	dpram_init (void);
 | 
						|
uint	dpram_base(void);
 | 
						|
uint	dpram_base_align(uint align);
 | 
						|
uint	dpram_alloc(uint size);
 | 
						|
uint	dpram_alloc_align(uint size,uint align);
 | 
						|
void	bootcount_store (ulong);
 | 
						|
ulong	bootcount_load (void);
 | 
						|
#define BOOTCOUNT_MAGIC		0xB001C041
 | 
						|
 | 
						|
/* $(CPU)/.../<eth> */
 | 
						|
void mii_init (void);
 | 
						|
 | 
						|
/* $(CPU)/.../lcd.c */
 | 
						|
ulong	lcd_setmem (ulong);
 | 
						|
 | 
						|
/* $(CPU)/.../video.c */
 | 
						|
ulong	video_setmem (ulong);
 | 
						|
 | 
						|
/* arch/$(ARCH)/lib/cache.c */
 | 
						|
void	enable_caches(void);
 | 
						|
void	flush_cache   (unsigned long, unsigned long);
 | 
						|
void	flush_dcache_all(void);
 | 
						|
void	flush_dcache_range(unsigned long start, unsigned long stop);
 | 
						|
void	invalidate_dcache_range(unsigned long start, unsigned long stop);
 | 
						|
void	invalidate_dcache_all(void);
 | 
						|
void	invalidate_icache_all(void);
 | 
						|
 | 
						|
enum {
 | 
						|
	/* Disable caches (else flush caches but leave them active) */
 | 
						|
	CBL_DISABLE_CACHES		= 1 << 0,
 | 
						|
	CBL_SHOW_BOOTSTAGE_REPORT	= 1 << 1,
 | 
						|
 | 
						|
	CBL_ALL				= 3,
 | 
						|
};
 | 
						|
 | 
						|
/**
 | 
						|
 * Clean up ready for linux
 | 
						|
 *
 | 
						|
 * @param flags		Flags to control what is done
 | 
						|
 */
 | 
						|
int cleanup_before_linux_select(int flags);
 | 
						|
 | 
						|
/* arch/$(ARCH)/lib/ticks.S */
 | 
						|
uint64_t get_ticks(void);
 | 
						|
void	wait_ticks    (unsigned long);
 | 
						|
 | 
						|
/* arch/$(ARCH)/lib/time.c */
 | 
						|
void	__udelay      (unsigned long);
 | 
						|
ulong	usec2ticks    (unsigned long usec);
 | 
						|
ulong	ticks2usec    (unsigned long ticks);
 | 
						|
int	init_timebase (void);
 | 
						|
 | 
						|
/* lib/gunzip.c */
 | 
						|
int gunzip(void *, int, unsigned char *, unsigned long *);
 | 
						|
int zunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp,
 | 
						|
						int stoponerr, int offset);
 | 
						|
 | 
						|
/**
 | 
						|
 * gzwrite progress indicators: defined weak to allow board-specific
 | 
						|
 * overrides:
 | 
						|
 *
 | 
						|
 *	gzwrite_progress_init called on startup
 | 
						|
 *	gzwrite_progress called during decompress/write loop
 | 
						|
 *	gzwrite_progress_finish called at end of loop to
 | 
						|
 *		indicate success (retcode=0) or failure
 | 
						|
 */
 | 
						|
void gzwrite_progress_init(u64 expected_size);
 | 
						|
 | 
						|
void gzwrite_progress(int iteration,
 | 
						|
		     u64 bytes_written,
 | 
						|
		     u64 total_bytes);
 | 
						|
 | 
						|
void gzwrite_progress_finish(int retcode,
 | 
						|
			     u64 totalwritten,
 | 
						|
			     u64 totalsize,
 | 
						|
			     u32 expected_crc,
 | 
						|
			     u32 calculated_crc);
 | 
						|
 | 
						|
/**
 | 
						|
 * decompress and write gzipped image from memory to block device
 | 
						|
 *
 | 
						|
 * @param	src		compressed image address
 | 
						|
 * @param	len		compressed image length in bytes
 | 
						|
 * @param	dev		block device descriptor
 | 
						|
 * @param	szwritebuf	bytes per write (pad to erase size)
 | 
						|
 * @param	startoffs	offset in bytes of first write
 | 
						|
 * @param	szexpected	expected uncompressed length
 | 
						|
 *				may be zero to use gzip trailer
 | 
						|
 *				for files under 4GiB
 | 
						|
 */
 | 
						|
int gzwrite(unsigned char *src, int len,
 | 
						|
	    struct block_dev_desc *dev,
 | 
						|
	    unsigned long szwritebuf,
 | 
						|
	    u64 startoffs,
 | 
						|
	    u64 szexpected);
 | 
						|
 | 
						|
/* lib/qsort.c */
 | 
						|
void qsort(void *base, size_t nmemb, size_t size,
 | 
						|
	   int(*compar)(const void *, const void *));
 | 
						|
int strcmp_compar(const void *, const void *);
 | 
						|
 | 
						|
/* lib/time.c */
 | 
						|
void	udelay        (unsigned long);
 | 
						|
void mdelay(unsigned long);
 | 
						|
 | 
						|
/* lib/uuid.c */
 | 
						|
#include <uuid.h>
 | 
						|
 | 
						|
/* lib/vsprintf.c */
 | 
						|
#include <vsprintf.h>
 | 
						|
 | 
						|
/* lib/strmhz.c */
 | 
						|
char *	strmhz(char *buf, unsigned long hz);
 | 
						|
 | 
						|
/* lib/crc32.c */
 | 
						|
#include <u-boot/crc.h>
 | 
						|
 | 
						|
/* lib/rand.c */
 | 
						|
#define RAND_MAX -1U
 | 
						|
void srand(unsigned int seed);
 | 
						|
unsigned int rand(void);
 | 
						|
unsigned int rand_r(unsigned int *seedp);
 | 
						|
 | 
						|
/* common/console.c */
 | 
						|
int	console_init_f(void);	/* Before relocation; uses the serial  stuff	*/
 | 
						|
int	console_init_r(void);	/* After  relocation; uses the console stuff	*/
 | 
						|
int	console_assign(int file, const char *devname);	/* Assign the console	*/
 | 
						|
int	ctrlc (void);
 | 
						|
int	had_ctrlc (void);	/* have we had a Control-C since last clear? */
 | 
						|
void	clear_ctrlc (void);	/* clear the Control-C condition */
 | 
						|
int	disable_ctrlc (int);	/* 1 to disable, 0 to enable Control-C detect */
 | 
						|
int confirm_yesno(void);        /*  1 if input is "y", "Y", "yes" or "YES" */
 | 
						|
/*
 | 
						|
 * STDIO based functions (can always be used)
 | 
						|
 */
 | 
						|
/* serial stuff */
 | 
						|
int	serial_printf (const char *fmt, ...)
 | 
						|
		__attribute__ ((format (__printf__, 1, 2)));
 | 
						|
/* stdin */
 | 
						|
int	getc(void);
 | 
						|
int	tstc(void);
 | 
						|
 | 
						|
/* stdout */
 | 
						|
void	putc(const char c);
 | 
						|
void	puts(const char *s);
 | 
						|
int	printf(const char *fmt, ...)
 | 
						|
		__attribute__ ((format (__printf__, 1, 2)));
 | 
						|
int	vprintf(const char *fmt, va_list args);
 | 
						|
 | 
						|
/* stderr */
 | 
						|
#define eputc(c)		fputc(stderr, c)
 | 
						|
#define eputs(s)		fputs(stderr, s)
 | 
						|
#define eprintf(fmt,args...)	fprintf(stderr,fmt ,##args)
 | 
						|
 | 
						|
/*
 | 
						|
 * FILE based functions (can only be used AFTER relocation!)
 | 
						|
 */
 | 
						|
#define stdin		0
 | 
						|
#define stdout		1
 | 
						|
#define stderr		2
 | 
						|
#define MAX_FILES	3
 | 
						|
 | 
						|
int	fprintf(int file, const char *fmt, ...)
 | 
						|
		__attribute__ ((format (__printf__, 2, 3)));
 | 
						|
void	fputs(int file, const char *s);
 | 
						|
void	fputc(int file, const char c);
 | 
						|
int	ftstc(int file);
 | 
						|
int	fgetc(int file);
 | 
						|
 | 
						|
/* lib/gzip.c */
 | 
						|
int gzip(void *dst, unsigned long *lenp,
 | 
						|
		unsigned char *src, unsigned long srclen);
 | 
						|
int zzip(void *dst, unsigned long *lenp, unsigned char *src,
 | 
						|
		unsigned long srclen, int stoponerr,
 | 
						|
		int (*func)(unsigned long, unsigned long));
 | 
						|
 | 
						|
/* lib/net_utils.c */
 | 
						|
#include <net.h>
 | 
						|
static inline struct in_addr getenv_ip(char *var)
 | 
						|
{
 | 
						|
	return string_to_ip(getenv(var));
 | 
						|
}
 | 
						|
 | 
						|
/*
 | 
						|
 * CONSOLE multiplexing.
 | 
						|
 */
 | 
						|
#ifdef CONFIG_CONSOLE_MUX
 | 
						|
#include <iomux.h>
 | 
						|
#endif
 | 
						|
 | 
						|
int	pcmcia_init (void);
 | 
						|
 | 
						|
#ifdef CONFIG_STATUS_LED
 | 
						|
# include <status_led.h>
 | 
						|
#endif
 | 
						|
 | 
						|
#include <bootstage.h>
 | 
						|
 | 
						|
#ifdef CONFIG_SHOW_ACTIVITY
 | 
						|
void show_activity(int arg);
 | 
						|
#endif
 | 
						|
 | 
						|
/* Multicore arch functions */
 | 
						|
#ifdef CONFIG_MP
 | 
						|
int cpu_status(int nr);
 | 
						|
int cpu_reset(int nr);
 | 
						|
int cpu_disable(int nr);
 | 
						|
int cpu_release(int nr, int argc, char * const argv[]);
 | 
						|
#endif
 | 
						|
 | 
						|
#endif /* __ASSEMBLY__ */
 | 
						|
 | 
						|
#ifdef CONFIG_PPC
 | 
						|
/*
 | 
						|
 * Has to be included outside of the #ifndef __ASSEMBLY__ section.
 | 
						|
 * Otherwise might lead to compilation errors in assembler files.
 | 
						|
 */
 | 
						|
#include <asm/cache.h>
 | 
						|
#endif
 | 
						|
 | 
						|
/* Put only stuff here that the assembler can digest */
 | 
						|
 | 
						|
#ifdef CONFIG_POST
 | 
						|
#define CONFIG_HAS_POST
 | 
						|
#ifndef CONFIG_POST_ALT_LIST
 | 
						|
#define CONFIG_POST_STD_LIST
 | 
						|
#endif
 | 
						|
#endif
 | 
						|
 | 
						|
#ifdef CONFIG_INIT_CRITICAL
 | 
						|
#error CONFIG_INIT_CRITICAL is deprecated!
 | 
						|
#error Read section CONFIG_SKIP_LOWLEVEL_INIT in README.
 | 
						|
#endif
 | 
						|
 | 
						|
#define ROUND(a,b)		(((a) + (b) - 1) & ~((b) - 1))
 | 
						|
 | 
						|
/*
 | 
						|
 * ARCH_DMA_MINALIGN is defined in asm/cache.h for each architecture.  It
 | 
						|
 * is used to align DMA buffers.
 | 
						|
 */
 | 
						|
#ifndef __ASSEMBLY__
 | 
						|
#include <asm/cache.h>
 | 
						|
#endif
 | 
						|
 | 
						|
/*
 | 
						|
 * The ALLOC_CACHE_ALIGN_BUFFER macro is used to allocate a buffer on the
 | 
						|
 * stack that meets the minimum architecture alignment requirements for DMA.
 | 
						|
 * Such a buffer is useful for DMA operations where flushing and invalidating
 | 
						|
 * the cache before and after a read and/or write operation is required for
 | 
						|
 * correct operations.
 | 
						|
 *
 | 
						|
 * When called the macro creates an array on the stack that is sized such
 | 
						|
 * that:
 | 
						|
 *
 | 
						|
 * 1) The beginning of the array can be advanced enough to be aligned.
 | 
						|
 *
 | 
						|
 * 2) The size of the aligned portion of the array is a multiple of the minimum
 | 
						|
 *    architecture alignment required for DMA.
 | 
						|
 *
 | 
						|
 * 3) The aligned portion contains enough space for the original number of
 | 
						|
 *    elements requested.
 | 
						|
 *
 | 
						|
 * The macro then creates a pointer to the aligned portion of this array and
 | 
						|
 * assigns to the pointer the address of the first element in the aligned
 | 
						|
 * portion of the array.
 | 
						|
 *
 | 
						|
 * Calling the macro as:
 | 
						|
 *
 | 
						|
 *     ALLOC_CACHE_ALIGN_BUFFER(uint32_t, buffer, 1024);
 | 
						|
 *
 | 
						|
 * Will result in something similar to saying:
 | 
						|
 *
 | 
						|
 *     uint32_t    buffer[1024];
 | 
						|
 *
 | 
						|
 * The following differences exist:
 | 
						|
 *
 | 
						|
 * 1) The resulting buffer is guaranteed to be aligned to the value of
 | 
						|
 *    ARCH_DMA_MINALIGN.
 | 
						|
 *
 | 
						|
 * 2) The buffer variable created by the macro is a pointer to the specified
 | 
						|
 *    type, and NOT an array of the specified type.  This can be very important
 | 
						|
 *    if you want the address of the buffer, which you probably do, to pass it
 | 
						|
 *    to the DMA hardware.  The value of &buffer is different in the two cases.
 | 
						|
 *    In the macro case it will be the address of the pointer, not the address
 | 
						|
 *    of the space reserved for the buffer.  However, in the second case it
 | 
						|
 *    would be the address of the buffer.  So if you are replacing hard coded
 | 
						|
 *    stack buffers with this macro you need to make sure you remove the & from
 | 
						|
 *    the locations where you are taking the address of the buffer.
 | 
						|
 *
 | 
						|
 * Note that the size parameter is the number of array elements to allocate,
 | 
						|
 * not the number of bytes.
 | 
						|
 *
 | 
						|
 * This macro can not be used outside of function scope, or for the creation
 | 
						|
 * of a function scoped static buffer.  It can not be used to create a cache
 | 
						|
 * line aligned global buffer.
 | 
						|
 */
 | 
						|
#define PAD_COUNT(s, pad) (((s) - 1) / (pad) + 1)
 | 
						|
#define PAD_SIZE(s, pad) (PAD_COUNT(s, pad) * pad)
 | 
						|
#define ALLOC_ALIGN_BUFFER_PAD(type, name, size, align, pad)		\
 | 
						|
	char __##name[ROUND(PAD_SIZE((size) * sizeof(type), pad), align)  \
 | 
						|
		      + (align - 1)];					\
 | 
						|
									\
 | 
						|
	type *name = (type *) ALIGN((uintptr_t)__##name, align)
 | 
						|
#define ALLOC_ALIGN_BUFFER(type, name, size, align)		\
 | 
						|
	ALLOC_ALIGN_BUFFER_PAD(type, name, size, align, 1)
 | 
						|
#define ALLOC_CACHE_ALIGN_BUFFER_PAD(type, name, size, pad)		\
 | 
						|
	ALLOC_ALIGN_BUFFER_PAD(type, name, size, ARCH_DMA_MINALIGN, pad)
 | 
						|
#define ALLOC_CACHE_ALIGN_BUFFER(type, name, size)			\
 | 
						|
	ALLOC_ALIGN_BUFFER(type, name, size, ARCH_DMA_MINALIGN)
 | 
						|
 | 
						|
/*
 | 
						|
 * DEFINE_CACHE_ALIGN_BUFFER() is similar to ALLOC_CACHE_ALIGN_BUFFER, but it's
 | 
						|
 * purpose is to allow allocating aligned buffers outside of function scope.
 | 
						|
 * Usage of this macro shall be avoided or used with extreme care!
 | 
						|
 */
 | 
						|
#define DEFINE_ALIGN_BUFFER(type, name, size, align)			\
 | 
						|
	static char __##name[ALIGN(size * sizeof(type), align)]	\
 | 
						|
			__aligned(align);				\
 | 
						|
									\
 | 
						|
	static type *name = (type *)__##name
 | 
						|
#define DEFINE_CACHE_ALIGN_BUFFER(type, name, size)			\
 | 
						|
	DEFINE_ALIGN_BUFFER(type, name, size, ARCH_DMA_MINALIGN)
 | 
						|
 | 
						|
/* Pull in stuff for the build system */
 | 
						|
#ifdef DO_DEPS_ONLY
 | 
						|
# include <environment.h>
 | 
						|
#endif
 | 
						|
 | 
						|
#endif	/* __COMMON_H_ */
 |