/* * A lowlevel_init function that sets up the stack to call a C function to * perform further init. * * (C) Copyright 2010 * Texas Instruments, * * Author : * Aneesh V * * 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 */ #include #include #include ENTRY(lowlevel_init) /* * Setup a temporary stack */ ldr sp, =CONFIG_SYS_INIT_SP_ADDR bic sp, sp, #7 /* 8-byte alignment for ABI compliance */ #ifdef CONFIG_SPL_BUILD ldr r8, =gdata #else sub sp, #GD_SIZE bic sp, sp, #7 mov r8, sp #endif /* * Save the old lr(passed in ip) and the current lr to stack */ push {ip, lr} /* * go setup pll, mux, memory */ bl s_init pop {ip, pc} ENDPROC(lowlevel_init)