Patch by Steven Scholz, 13 Dec 2004:
Remove duplicated code by merging memsetup.S files for
at91rm9200 boards into one cpu/at91rm9200/lowlevel.S
diff --git a/cpu/at91rm9200/lowlevel.S b/cpu/at91rm9200/lowlevel.S
new file mode 100644
index 0000000..030f9e1
--- /dev/null
+++ b/cpu/at91rm9200/lowlevel.S
@@ -0,0 +1,200 @@
+/*
+ * Memory Setup stuff - taken from blob memsetup.S
+ *
+ * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) and
+ * Jan-Derk Bakker (J.D.Bakker@its.tudelft.nl)
+ *
+ * Modified for the at91rm9200dk board by
+ * (C) Copyright 2004
+ * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
+ *
+ * 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 <config.h>
+#include <version.h>
+
+#ifdef CONFIG_BOOTBINFUNC
+/*
+ * some parameters for the board
+ *
+ * This is based on rm9200dk.cfg for the BDI2000 from ABATRON which in
+ * turn is based on the boot.bin code from ATMEL
+ *
+ */
+
+/* flash */
+#define MC_PUIA 0xFFFFFF10
+#define MC_PUP 0xFFFFFF50
+#define MC_PUER 0xFFFFFF54
+#define MC_ASR 0xFFFFFF04
+#define MC_AASR 0xFFFFFF08
+#define EBI_CFGR 0xFFFFFF64
+#define SMC2_CSR 0xFFFFFF70
+
+/* clocks */
+#define PLLAR 0xFFFFFC28
+#define PLLBR 0xFFFFFC2C
+#define MCKR 0xFFFFFC30
+
+#define AT91C_BASE_CKGR 0xFFFFFC20
+#define CKGR_MOR 0
+
+/* sdram */
+#define PIOC_ASR 0xFFFFF870
+#define PIOC_BSR 0xFFFFF874
+#define PIOC_PDR 0xFFFFF804
+#define EBI_CSA 0xFFFFFF60
+#define SDRC_CR 0xFFFFFF98
+#define SDRC_MR 0xFFFFFF90
+#define SDRC_TR 0xFFFFFF94
+
+
+_MTEXT_BASE:
+#undef START_FROM_MEM
+#ifdef START_FROM_MEM
+ .word TEXT_BASE-PHYS_FLASH_1
+#else
+ .word TEXT_BASE
+#endif
+
+.globl lowlevelinit
+lowlevelinit:
+ /* Get the CKGR Base Address */
+ ldr r1, =AT91C_BASE_CKGR
+ /* Main oscillator Enable register */
+#ifdef CFG_USE_MAIN_OSCILLATOR
+ ldr r0, =0x0000FF01 /* Enable main oscillator, OSCOUNT = 0xFF */
+#else
+ ldr r0, =0x0000FF00 /* Disable main oscillator, OSCOUNT = 0xFF */
+#endif
+ str r0, [r1, #CKGR_MOR]
+ /* Add loop to compensate Main Oscillator startup time */
+ ldr r0, =0x00000010
+LoopOsc:
+ subs r0, r0, #1
+ bhi LoopOsc
+
+ /* memory control configuration */
+ /* this isn't very elegant, but what the heck */
+ ldr r0, =SMRDATA
+ ldr r1, _MTEXT_BASE
+ sub r0, r0, r1
+ add r2, r0, #80
+0:
+ /* the address */
+ ldr r1, [r0], #4
+ /* the value */
+ ldr r3, [r0], #4
+ str r3, [r1]
+ cmp r2, r0
+ bne 0b
+ /* delay - this is all done by guess */
+ ldr r0, =0x00010000
+1:
+ subs r0, r0, #1
+ bhi 1b
+ ldr r0, =SMRDATA1
+ ldr r1, _MTEXT_BASE
+ sub r0, r0, r1
+ add r2, r0, #176
+2:
+ /* the address */
+ ldr r1, [r0], #4
+ /* the value */
+ ldr r3, [r0], #4
+ str r3, [r1]
+ cmp r2, r0
+ bne 2b
+
+ /* everything is fine now */
+ mov pc, lr
+
+ .ltorg
+
+SMRDATA:
+ .word MC_PUIA
+ .word MC_PUIA_VAL
+ .word MC_PUP
+ .word MC_PUP_VAL
+ .word MC_PUER
+ .word MC_PUER_VAL
+ .word MC_ASR
+ .word MC_ASR_VAL
+ .word MC_AASR
+ .word MC_AASR_VAL
+ .word EBI_CFGR
+ .word EBI_CFGR_VAL
+ .word SMC2_CSR
+ .word SMC2_CSR_VAL
+ .word PLLAR
+ .word PLLAR_VAL
+ .word PLLBR
+ .word PLLBR_VAL
+ .word MCKR
+ .word MCKR_VAL
+ /* SMRDATA is 80 bytes long */
+ /* here there's a delay of 100 */
+SMRDATA1:
+ .word PIOC_ASR
+ .word PIOC_ASR_VAL
+ .word PIOC_BSR
+ .word PIOC_BSR_VAL
+ .word PIOC_PDR
+ .word PIOC_PDR_VAL
+ .word EBI_CSA
+ .word EBI_CSA_VAL
+ .word SDRC_CR
+ .word SDRC_CR_VAL
+ .word SDRC_MR
+ .word SDRC_MR_VAL
+ .word SDRAM
+ .word SDRAM_VAL
+ .word SDRC_MR
+ .word SDRC_MR_VAL1
+ .word SDRAM
+ .word SDRAM_VAL
+ .word SDRAM
+ .word SDRAM_VAL
+ .word SDRAM
+ .word SDRAM_VAL
+ .word SDRAM
+ .word SDRAM_VAL
+ .word SDRAM
+ .word SDRAM_VAL
+ .word SDRAM
+ .word SDRAM_VAL
+ .word SDRAM
+ .word SDRAM_VAL
+ .word SDRAM
+ .word SDRAM_VAL
+ .word SDRC_MR
+ .word SDRC_MR_VAL2
+ .word SDRAM1
+ .word SDRAM_VAL
+ .word SDRC_TR
+ .word SDRC_TR_VAL
+ .word SDRAM
+ .word SDRAM_VAL
+ .word SDRC_MR
+ .word SDRC_MR_VAL3
+ .word SDRAM
+ .word SDRAM_VAL
+ /* SMRDATA1 is 176 bytes long */
+#endif /* CONFIG_BOOTBINFUNC */