include/system-constants.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2
   3 #ifndef __SYSTEM_CONSTANTS_H__
   4 #define __SYSTEM_CONSTANTS_H__
   5
   6 #include <config.h>
   7
   8 /*
   9  * The most common case for our initial stack pointer address is to
  10  * say that we have defined a static intiial ram address location and
  11  * size and from that we subtract the generated global data size.
  12  */
  13 #ifdef CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR
  14 #define SYS_INIT_SP_ADDR        CONFIG_CUSTOM_SYS_INIT_SP_ADDR
  15 #else
  16 #ifdef CONFIG_MIPS
  17 #define SYS_INIT_SP_ADDR        (CFG_SYS_SDRAM_BASE + CFG_SYS_INIT_SP_OFFSET)
  18 #else
  19 #define SYS_INIT_SP_ADDR        \
  20         (CFG_SYS_INIT_RAM_ADDR + CFG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
  21 #endif
  22 #endif
  23
  24 /*
  25  * Typically, we have the SPL malloc pool at the end of the BSS area.
  26  */
  27 #ifdef CONFIG_SPL_HAS_CUSTOM_MALLOC_START
  28 #define SPL_SYS_MALLOC_START            CONFIG_SPL_CUSTOM_SYS_MALLOC_ADDR
  29 #elif defined(CONFIG_SPL_BSS_START_ADDR)
  30 #define SPL_SYS_MALLOC_START            (CONFIG_SPL_BSS_START_ADDR + \
  31                                          CONFIG_SPL_BSS_MAX_SIZE)
  32 #else
  33 /* feature not enabled: this value avoids compiler errors but is not used */
  34 #define SPL_SYS_MALLOC_START    0
  35 #endif
  36 #define SPL_SYS_MALLOC_SIZE     \
  37         IF_ENABLED_INT(CONFIG_SPL_SYS_MALLOC, CONFIG_SPL_SYS_MALLOC_SIZE)
  38
  39 /* deal with an optional value */
  40 #ifdef CONFIG_SPL_OS_BOOT
  41 #define SPL_PAYLOAD_ARGS_ADDR   CONFIG_SPL_PAYLOAD_ARGS_ADDR
  42 #else
  43 #define SPL_PAYLOAD_ARGS_ADDR   0
  44 #endif
  45
  46 /* Number of pages per block */
  47 #define SYS_NAND_BLOCK_PAGES \
  48         (CONFIG_SYS_NAND_BLOCK_SIZE / CONFIG_SYS_NAND_PAGE_SIZE)
  49
  50 #endif