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-rw-r--r--board/armltd/integratorcp/lowlevel_init.S214
1 files changed, 0 insertions, 214 deletions
diff --git a/board/armltd/integratorcp/lowlevel_init.S b/board/armltd/integratorcp/lowlevel_init.S
deleted file mode 100644
index 18f7d2e..0000000
--- a/board/armltd/integratorcp/lowlevel_init.S
+++ /dev/null
@@ -1,214 +0,0 @@
-/*
- * Board specific setup info
- *
- * (C) Copyright 2003, ARM Ltd.
- * Philippe Robin, <philippe.robin@arm.com>
- *
- * 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>
-
-/* Reset using CM control register */
-.global reset_cpu
-reset_cpu:
- mov r0, #CM_BASE
- ldr r1,[r0,#OS_CTRL]
- orr r1,r1,#CMMASK_RESET
- str r1,[r0,#OS_CTRL]
-
-reset_failed:
- b reset_failed
-
-/* Set up the platform, once the cpu has been initialized */
-.globl lowlevel_init
-lowlevel_init:
- /* If U-Boot has been run after the ARM boot monitor
- * then all the necessary actions have been done
- * otherwise we are running from user flash mapped to 0x00000000
- * --- DO NOT REMAP BEFORE THE CODE HAS BEEN RELOCATED --
- * Changes to the (possibly soft) reset defaults of the processor
- * itself should be performed in cpu/arm<>/start.S
- * This function affects only the core module or board settings
- */
-
-#ifdef CONFIG_CM_INIT
- /* CM has an initialization register
- * - bits in it are wired into test-chip pins to force
- * reset defaults
- * - may need to change its contents for U-Boot
- */
-
- /* set the desired CM specific value */
- mov r2,#CMMASK_LOWVEC /* Vectors at 0x00000000 for all */
-
-#if defined (CONFIG_CM10200E) || defined (CONFIG_CM10220E)
- orr r2,r2,#CMMASK_INIT_102
-#else
-
-#if !defined (CONFIG_CM920T) && !defined (CONFIG_CM920T_ETM) && \
- !defined (CONFIG_CM940T)
- /* CMxx6 code */
-
-#ifdef CONFIG_CM_MULTIPLE_SSRAM
- /* set simple mapping */
- and r2,r2,#CMMASK_MAP_SIMPLE
-#endif /* #ifdef CONFIG_CM_MULTIPLE_SSRAM */
-
-#ifdef CONFIG_CM_TCRAM
- /* disable TCRAM */
- and r2,r2,#CMMASK_TCRAM_DISABLE
-#endif /* #ifdef CONFIG_CM_TCRAM */
-
-#if defined (CONFIG_CM926EJ_S) || defined (CONFIG_CM1026EJ_S) || \
- defined (CONFIG_CM1136JF_S)
-
- and r2,r2,#CMMASK_LE
-
-#endif /* cpu with little endian initialization */
-
- orr r2,r2,#CMMASK_CMxx6_COMMON
-
-#endif /* CMxx6 code */
-
-#endif /* ARM102xxE value */
-
- /* read CM_INIT */
- mov r0, #CM_BASE
- ldr r1, [r0, #OS_INIT]
- /* check against desired bit setting */
- and r3,r1,r2
- cmp r3,r2
- beq init_reg_OK
-
- /* lock for change */
- mov r3, #CMVAL_LOCK1
- and r3, r3, #CMVAL_LOCK2
- str r3, [r0, #OS_LOCK]
- /* set desired value */
- orr r1,r1,r2
- /* write & relock CM_INIT */
- str r1, [r0, #OS_INIT]
- mov r1, #CMVAL_UNLOCK
- str r1, [r0, #OS_LOCK]
-
- /* soft reset so new values used */
- b reset_cpu
-
-init_reg_OK:
-
-#endif /* CONFIG_CM_INIT */
-
- mov pc, lr
-
-#ifdef CONFIG_CM_SPD_DETECT
- /* Fast memory is available for the DRAM data
- * - ensure it has been transferred, then summarize the data
- * into a CM register
- */
-.globl dram_query
-dram_query:
- stmfd r13!,{r4-r6,lr}
- /* set up SDRAM info */
- /* - based on example code from the CM User Guide */
- mov r0, #CM_BASE
-
-readspdbit:
- ldr r1, [r0, #OS_SDRAM] /* read the SDRAM register */
- and r1, r1, #0x20 /* mask SPD bit (5) */
- cmp r1, #0x20 /* test if set */
- bne readspdbit
-
-setupsdram:
- add r0, r0, #OS_SPD /* address the copy of the SDP data */
- ldrb r1, [r0, #3] /* number of row address lines */
- ldrb r2, [r0, #4] /* number of column address lines */
- ldrb r3, [r0, #5] /* number of banks */
- ldrb r4, [r0, #31] /* module bank density */
- mul r5, r4, r3 /* size of SDRAM (MB divided by 4) */
- mov r5, r5, ASL#2 /* size in MB */
- mov r0, #CM_BASE /* reload for later code */
- cmp r5, #0x10 /* is it 16MB? */
- bne not16
- mov r6, #0x2 /* store size and CAS latency of 2 */
- b writesize
-
-not16:
- cmp r5, #0x20 /* is it 32MB? */
- bne not32
- mov r6, #0x6
- b writesize
-
-not32:
- cmp r5, #0x40 /* is it 64MB? */
- bne not64
- mov r6, #0xa
- b writesize
-
-not64:
- cmp r5, #0x80 /* is it 128MB? */
- bne not128
- mov r6, #0xe
- b writesize
-
-not128:
- /* if it is none of these sizes then it is either 256MB, or
- * there is no SDRAM fitted so default to 256MB
- */
- mov r6, #0x12
-
-writesize:
- mov r1, r1, ASL#8 /* row addr lines from SDRAM reg */
- orr r2, r1, r2, ASL#12 /* OR in column address lines */
- orr r3, r2, r3, ASL#16 /* OR in number of banks */
- orr r6, r6, r3 /* OR in size and CAS latency */
- str r6, [r0, #OS_SDRAM] /* store SDRAM parameters */
-
-#endif /* #ifdef CONFIG_CM_SPD_DETECT */
-
- ldmfd r13!,{r4-r6,pc} /* back to caller */
-
-#ifdef CONFIG_CM_REMAP
- /* CM remap bit is operational
- * - use it to map writeable memory at 0x00000000, in place of flash
- */
-.globl cm_remap
-cm_remap:
- stmfd r13!,{r4-r10,lr}
-
- mov r0, #CM_BASE
- ldr r1, [r0, #OS_CTRL]
- orr r1, r1, #CMMASK_REMAP /* set remap and led bits */
- str r1, [r0, #OS_CTRL]
-
- /* Now 0x00000000 is writeable, replace the vectors */
- ldr r0, =_start /* r0 <- start of vectors */
- ldr r2, =_armboot_start /* r2 <- past vectors */
- sub r1,r1,r1 /* destination 0x00000000 */
-
-copy_vec:
- ldmia r0!, {r3-r10} /* copy from source address [r0] */
- stmia r1!, {r3-r10} /* copy to target address [r1] */
- cmp r0, r2 /* until source end address [r2] */
- ble copy_vec
-
- ldmfd r13!,{r4-r10,pc} /* back to caller */
-
-#endif /* #ifdef CONFIG_CM_REMAP */