u-boot/include/system-constants.h

/* SPDX-License-Identifier: GPL-2.0+ */

#ifndef __SYSTEM_CONSTANTS_H__
#define __SYSTEM_CONSTANTS_H__

/*
 * The most common case for our initial stack pointer address is to
 * say that we have defined a static intiial ram address location and
 * size and from that we subtract the generated global data size.
 */
#ifdef CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR
#define SYS_INIT_SP_ADDR	CONFIG_CUSTOM_SYS_INIT_SP_ADDR
#else
#ifdef CONFIG_MIPS
#define SYS_INIT_SP_ADDR	(CFG_SYS_SDRAM_BASE + CFG_SYS_INIT_SP_OFFSET)
#else
#define SYS_INIT_SP_ADDR	\
	(CFG_SYS_INIT_RAM_ADDR + CFG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
#endif
#endif

/*
 * Typically, we have the SPL malloc pool at the end of the BSS area.
 */
#ifdef CONFIG_HAS_CUSTOM_SPL_MALLOC_START
#define SYS_SPL_MALLOC_START		CONFIG_CUSTOM_SYS_SPL_MALLOC_ADDR
#else
#define SYS_SPL_MALLOC_START		(CONFIG_SPL_BSS_START_ADDR + \
					 CONFIG_SPL_BSS_MAX_SIZE)
#endif

#endif