* Jan-Derk Bakker (J.D.Bakker@its.tudelft.nl)
* 2004 (c) MontaVista Software, Inc.
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
.globl lowlevel_init
lowlevel_init:
- /* set output and direction of pins */
- ldr r0, PPC_BASE
- ldr r1, pin_set_out
- str r1, [r0, #PPSR]
- ldr r1, pin_set_dir
- str r1, [r0, #PPDR]
+
+ /* this is required for flashing */
+ ldr r0, PPC_BASE
+ ldr r1, pin_set_out
+ str r1, [r0, #PPSR]
+ ldr r1, pin_set_dir
+ str r1, [r0, #PPDR]
/* Setting up the memory and stuff */
/***********************************/
ldr r3, [r2]
.endr
+ ldr r2, [r0, #MDCNFG]
+ orr r2, r2, #0x00000003
+ orr r2, r2, #0x00030000
+ str r2, [r0, #MDCNFG]
+
ldr r1, msc0
str r1, [r0, #MSC0]
ldr r1, msc1
str r1, [r0, #MSC2]
ldr r1, smcnfg
str r1, [r0, #SMCNFG]
- ldr r1, mdcnfg
- str r1, [r0, #MDCNFG]
ldr r1, mecr
str r1, [r0, #MECR]
- /* enable SDRAM */
- orr r1, r1, #0x00000001
- str r1, [r0, #MDCNFG]
-
mov pc, lr