Merge git://git.denx.de/u-boot-arm

[karo-tx-uboot.git] / board / amcc / makalu / init.S

diff --git a/board/amcc/makalu/init.S b/board/amcc/makalu/init.S
index 57c1774e028bb7de6583347b3c7bb2996d777252..032640f67fe85e8f09179f7e41bbda6cecd6a922 100644 (file)
--- a/board/amcc/makalu/init.S
+++ b/board/amcc/makalu/init.S
@@ -1,148 +1,15 @@
 /*
- * (C) Copyright 2007
- * Stefan Roese, DENX Software Engineering, sr@denx.de.
- *
- * Based on code provided from Senao and AMCC
- *
- * See file CREDITS for list of people who contributed to this
- * project.
+ * Copyright (c) 2008 Nuovation System Designs, LLC
+ *   Grant Erickson <gerickson@nuovations.com>
  *
- * 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.
+ * (C) Copyright 2007-2008
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
  *
- * 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.
+ * Originally based on code provided from Senao and AMCC
  *
- * 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+ 
  */
 
-#include <config.h>
-#include <ppc4xx.h>
-
-#include <ppc_asm.tmpl>
-#include <ppc_defs.h>
-
-#define mtsdram_as(reg, value)         \
-       addi    r4,0,reg        ;       \
-       mtdcr   memcfga,r4      ;       \
-       addis   r4,0,value@h    ;       \
-       ori     r4,r4,value@l   ;       \
-       mtdcr   memcfgd,r4      ;
-
        .globl  ext_bus_cntlr_init
 ext_bus_cntlr_init:
-
-       /*
-        * DDR2 setup
-        */
-
-       /* Following the DDR Core Manual, here is the initialization */
-
-       /* Step 1 */
-
-       /* Step 2 */
-
-       /* Step 3 */
-
-       /* base=00000000, size=128MByte (5), mode=2 (n*10*4) */
-       mtsdram_as(SDRAM_MB0CF, 0x00005201);
-
-       /* base=08000000, size=128MByte (5), mode=2 (n*10*4) */
-       mtsdram_as(SDRAM_MB1CF, (0x08000000 >> 3) | 0x5201);
-
-       /* SDRAM_CLKTR: Adv Addr clock by 90 deg */
-       mtsdram_as(SDRAM_CLKTR,0x80000000);
-
-       /* Refresh Time register (0x30) Refresh every 7.8125uS */
-       mtsdram_as(SDRAM_RTR, 0x06180000);
-
-       /* SDRAM_SDTR1 */
-       mtsdram_as(SDRAM_SDTR1, 0x80201000);
-
-       /* SDRAM_SDTR2  */
-       mtsdram_as(SDRAM_SDTR2, 0x32204232);
-
-       /* SDRAM_SDTR3  */
-       mtsdram_as(SDRAM_SDTR3, 0x080b0d1a);
-
-       mtsdram_as(SDRAM_MMODE, 0x00000442);
-       mtsdram_as(SDRAM_MEMODE, 0x00000404);
-
-       /* SDRAM0_MCOPT1 (0X20) No ECC Gen */
-       mtsdram_as(SDRAM_MCOPT1, 0x04322000);
-
-       /* NOP */
-       mtsdram_as(SDRAM_INITPLR0, 0xa8380000);
-       /* precharge 3 DDR clock cycle */
-       mtsdram_as(SDRAM_INITPLR1, 0x81900400);
-       /* EMR2 twr = 2tck */
-       mtsdram_as(SDRAM_INITPLR2, 0x81020000);
-       /* EMR3  twr = 2tck */
-       mtsdram_as(SDRAM_INITPLR3, 0x81030000);
-       /* EMR DLL ENABLE twr = 2tck */
-       mtsdram_as(SDRAM_INITPLR4, 0x81010404);
-       /* MR w/ DLL reset
-        * Note: 5 is CL.  May need to be changed
-        */
-       mtsdram_as(SDRAM_INITPLR5, 0x81000542);
-       /* precharge 3 DDR clock cycle */
-       mtsdram_as(SDRAM_INITPLR6, 0x81900400);
-       /* Auto-refresh trfc = 26tck */
-       mtsdram_as(SDRAM_INITPLR7, 0x8D080000);
-       /* Auto-refresh trfc = 26tck */
-       mtsdram_as(SDRAM_INITPLR8, 0x8D080000);
-       /* Auto-refresh */
-       mtsdram_as(SDRAM_INITPLR9, 0x8D080000);
-       /* Auto-refresh */
-       mtsdram_as(SDRAM_INITPLR10, 0x8D080000);
-       /* MRS - normal operation; wait 2 cycle (set wait to tMRD) */
-       mtsdram_as(SDRAM_INITPLR11, 0x81000442);
-       mtsdram_as(SDRAM_INITPLR12, 0x81010780);
-       mtsdram_as(SDRAM_INITPLR13, 0x81010400);
-       mtsdram_as(SDRAM_INITPLR14, 0x00000000);
-       mtsdram_as(SDRAM_INITPLR15, 0x00000000);
-
-       /* SET MCIF0_CODT   Die Termination On */
-       mtsdram_as(SDRAM_CODT, 0x0080f837);
-       mtsdram_as(SDRAM_MODT0, 0x01800000);
-#if 0 /* test-only: not sure if 0 is ok when 2nd bank is used */
-       mtsdram_as(SDRAM_MODT1, 0x00000000);
-#endif
-
-       mtsdram_as(SDRAM_WRDTR, 0x00000000);
-
-       /* SDRAM0_MCOPT2 (0X21) Start initialization */
-       mtsdram_as(SDRAM_MCOPT2, 0x20000000);
-
-       /* Step 5 */
-       lis     r3,0x1  /* 400000 =  wait 100ms */
-       mtctr   r3
-
-pll_wait:
-       bdnz    pll_wait
-
-       /* Step 6 */
-
-       /* SDRAM_DLCR */
-       mtsdram_as(SDRAM_DLCR, 0x030000a5);
-
-       /* SDRAM_RDCC */
-       mtsdram_as(SDRAM_RDCC, 0x40000000);
-
-       /* SDRAM_RQDC */
-       mtsdram_as(SDRAM_RQDC, 0x80000038);
-
-       /* SDRAM_RFDC */
-       mtsdram_as(SDRAM_RFDC, 0x00000209);
-
-       /* Enable memory controller */
-       mtsdram_as(SDRAM_MCOPT2, 0x28000000);
-
        blr