1 /* 2 * Code shared between SPL and U-Boot proper 3 * 4 * Copyright (c) 2015 Google, Inc 5 * Written by Simon Glass <sjg@chromium.org> 6 * 7 * SPDX-License-Identifier: GPL-2.0+ 8 */ 9 10 #include <common.h> 11 12 DECLARE_GLOBAL_DATA_PTR; 13 14 /* Unfortunately x86 can't compile this code as gd cannot be assigned */ 15 #ifndef CONFIG_X86 16 __weak void arch_setup_gd(struct global_data *gd_ptr) 17 { 18 gd = gd_ptr; 19 } 20 #endif /* !CONFIG_X86 */ 21 22 ulong board_init_f_mem(ulong top) 23 { 24 struct global_data *gd_ptr; 25 26 /* Leave space for the stack we are running with now */ 27 top -= 0x40; 28 29 top -= sizeof(struct global_data); 30 top = ALIGN(top, 16); 31 gd_ptr = (struct global_data *)top; 32 memset(gd_ptr, '\0', sizeof(*gd)); 33 arch_setup_gd(gd_ptr); 34 35 #if defined(CONFIG_SYS_MALLOC_F) 36 top -= CONFIG_SYS_MALLOC_F_LEN; 37 gd->malloc_base = top; 38 #endif 39 40 return top; 41 } 42