contrib: add ram loader src code
Add src code for ram loaders to contrib directory. Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
This commit is contained in:
Spencer Oliver
parent
53228fbc2e
commit
1fafb669c9
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Included in these directories are the src to the various ram loaders used
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within openocd.
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** target checksum loaders **
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checksum/armv4_5_crc.s :
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- ARMv4 and ARMv5 checksum loader : see target/arm_crc_code.c:arm_crc_code
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checksum/armv7m_crc.s :
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- ARMv7m checksum loader : see target/armv7m.c:cortex_m3_crc_code
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checksum/mips32.s :
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- MIPS32 checksum loader : see target/mips32.c:mips_crc_code
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** target flash loaders **
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flash/pic32mx.s :
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- Microchip PIC32 flash loader : see flash/nor/pic32mx.c:pic32mx_flash_write_code
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flash/stellaris.s :
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- TI Stellaris flash loader : see flash/nor/stellaris.c:stellaris_write_code
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flash/stm32x.s :
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- ST STM32 flash loader : see flash/nor/stm32x.c:stm32x_flash_write_code
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flash/str7x.s :
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- ST STR7 flash loader : see flash/nor/str7x.c:str7x_flash_write_code
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flash/str9x.s :
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- ST STR9 flash loader : see flash/nor/str9x.c:str9x_flash_write_code
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Spencer Oliver
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spen@spen-soft.co.uk
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@ -0,0 +1,58 @@
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/***************************************************************************
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* Copyright (C) 2010 by Spencer Oliver *
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* spen@spen-soft.co.uk *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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/*
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r0 - address in - crc out
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r1 - char count
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*/
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.text
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.arm
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_start:
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main:
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mov r2, r0
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mov r0, #0xffffffff /* crc */
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mov r3, r1
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mov r4, #0
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b ncomp
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nbyte:
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ldrb r1, [r2, r4]
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ldr r7, CRC32XOR
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eor r0, r0, r1, asl #24
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mov r5, #0
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loop:
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cmp r0, #0
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mov r6, r0, asl #1
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add r5, r5, #1
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mov r0, r6
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eorlt r0, r6, r7
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cmp r5, #8
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bne loop
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add r4, r4, #1
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ncomp:
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cmp r4, r3
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bne nbyte
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end:
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bkpt #0
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CRC32XOR: .word 0x04c11db7
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.end
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@ -0,0 +1,66 @@
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/***************************************************************************
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* Copyright (C) 2010 by Spencer Oliver *
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* spen@spen-soft.co.uk *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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/*
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parameters:
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r0 - address in - crc out
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r1 - char count
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*/
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.text
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.syntax unified
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.cpu cortex-m3
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.thumb
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.thumb_func
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.align 2
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_start:
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main:
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mov r2, r0
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mov r0, #0xffffffff /* crc */
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mov r3, r1
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mov r4, #0
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b ncomp
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nbyte:
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ldrb r1, [r2, r4]
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ldr r7, CRC32XOR
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eor r0, r0, r1, asl #24
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mov r5, #0
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loop:
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cmp r0, #0
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mov r6, r0, asl #1
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add r5, r5, #1
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mov r0, r6
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it lt
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eorlt r0, r6, r7
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cmp r5, #8
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bne loop
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add r4, r4, #1
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ncomp:
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cmp r4, r3
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bne nbyte
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bkpt #0
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CRC32XOR: .word 0x04c11db7
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.end
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@ -0,0 +1,72 @@
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/***************************************************************************
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* Copyright (C) 2010 by Spencer Oliver *
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* spen@spen-soft.co.uk *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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.global main
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.text
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.set noreorder
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/* params:
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* $a0 address in
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* $a1 byte count
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* vars
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* $a0 crc
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* $a1 crc data byte
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* temps:
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* t3 v0 a3 a2 t0 v1
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*/
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.ent main
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main:
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addiu $t4, $a0, 0 /* address in */
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addiu $t2, $a1, 0 /* count */
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addiu $a0, $zero, 0xffffffff /* a0 crc - result */
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beq $zero, $zero, ncomp
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addiu $t3, $zero, 0 /* clear bytes read */
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nbyte:
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lb $a1, ($t4) /* load byte from source address */
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addi $t4, $t4, 1 /* inc byte count */
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crc:
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sll $a1, $a1, 24
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lui $v0, 0x04c1
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xor $a0, $a0, $a1
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ori $a3, $v0, 0x1db7
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addu $a2, $zero, $zero /* clear bit count */
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loop:
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sll $t0, $a0, 1
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addiu $a2, $a2, 1 /* inc bit count */
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slti $a0, $a0, 0
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xor $t1, $t0, $a3
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movn $t0, $t1, $a0
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slti $v1, $a2, 8 /* 8bits processed */
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bne $v1, $zero, loop
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addu $a0, $t0, $zero
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ncomp:
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bne $t2, $t3, nbyte /* all bytes processed */
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addiu $t3, $t3, 1
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wait:
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sdbbp
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.end main
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@ -0,0 +1,131 @@
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/***************************************************************************
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* Copyright (C) 2010 by Spencer Oliver *
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* spen@spen-soft.co.uk *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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.text
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.set noreorder
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.set noat
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/* params:
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* $a0 src adr - ram + result
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* $a1 dest adr - flash
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* $a2 count (32bit words)
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* vars
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*
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* temps:
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* $t0, $t1, $t2, $t3, $t4, $t5
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* $s0, $s1, $s3, $s4, $s5
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*/
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.type main, @function
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.global main
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.ent main
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main:
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/* setup constants */
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lui $t0, 0xaa99
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ori $t0, 0x6655 /* NVMKEY1 */
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lui $t1, 0x5566
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ori $t1, 0x99AA /* NVMKEY2 */
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lui $t2, 0xBF80
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ori $t2, 0xF400 /* NVMCON */
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ori $t3, $zero, 0x4003 /* NVMCON row write cmd */
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ori $t4, $zero, 0x8000 /* NVMCON start cmd */
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write_row:
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/* can we perform a row write: 128 32bit words */
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sltiu $s3, $a2, 128
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bne $s3, $zero, write_word
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ori $t5, $zero, 0x4000 /* NVMCON clear cmd */
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/* perform row write 512 bytes */
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sw $a1, 32($t2) /* set NVMADDR with dest addr - real addr */
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sw $a0, 64($t2) /* set NVMSRCADDR with src addr - real addr */
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bal progflash
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addiu $a0, $a0, 512
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addiu $a1, $a1, 512
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beq $zero, $zero, write_row
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addiu $a2, $a2, -128
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write_word:
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/* write 32bit words */
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lui $s5, 0xa000
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ori $s5, 0x0000
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or $a0, $a0, $s5 /* convert to virtual addr */
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beq $zero, $zero, next_word
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ori $t3, $zero, 0x4001 /* NVMCON word write cmd */
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prog_word:
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lw $s4, 0($a0) /* load data - from virtual addr */
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sw $s4, 48($t2) /* set NVMDATA with data */
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sw $a1, 32($t2) /* set NVMADDR with dest addr - real addr */
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bal progflash
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addiu $a0, $a0, 4
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addiu $a1, $a1, 4
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addiu $a2, $a2, -1
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next_word:
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bne $a2, $zero, prog_word
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nop
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done:
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beq $zero, $zero, exit
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addiu $a0, $zero, 0
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error:
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/* save result to $a0 */
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addiu $a0, $s1, 0
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exit:
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sdbbp
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.end main
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.type progflash, @function
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.global progflash
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.ent progflash
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progflash:
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sw $t3, 0($t2) /* set NVMWREN */
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sw $t0, 16($t2) /* write NVMKEY1 */
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sw $t1, 16($t2) /* write NVMKEY2 */
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sw $t4, 8($t2) /* start operation */
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waitflash:
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lw $s0, 0($t2)
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and $s0, $s0, $t4
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bne $s0, $zero, waitflash
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nop
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/* following is to comply with errata #34
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* 500ns delay required */
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nop
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nop
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nop
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nop
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/* check for errors */
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lw $s1, 0($t2)
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andi $s1, $zero, 0x3000
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bne $s1, $zero, error
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sw $t5, 4($t2) /* clear NVMWREN */
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jr $ra
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nop
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.end progflash
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@ -0,0 +1,66 @@
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/***************************************************************************
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* Copyright (C) 2006 by Magnus Lundin *
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* lundin@mlu.mine.nu *
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* *
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* Copyright (C) 2008 by Spencer Oliver *
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* spen@spen-soft.co.uk *
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* *
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* 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. *
|
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***************************************************************************/
|
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|
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.text
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.syntax unified
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.cpu cortex-m3
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.thumb
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.thumb_func
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.align 2
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/*
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Call with :
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r0 = buffer address
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r1 = destination address
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r2 = bytecount (in) - endaddr (work)
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Used registers:
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r3 = pFLASH_CTRL_BASE
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r4 = FLASHWRITECMD
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r5 = #1
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r6 = bytes written
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r7 = temp reg
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*/
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write:
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ldr r3,pFLASH_CTRL_BASE
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ldr r4,FLASHWRITECMD
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movs r5, 1
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movs r6, #0
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mainloop:
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str r1, [r3, #0]
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ldr r7, [r0, r6]
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str r7, [r3, #4]
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str r4, [r3, #8]
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waitloop:
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ldr r7, [r3, #8]
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tst r7, r5
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bne waitloop
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adds r1, r1, #4
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adds r6, r6, #4
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cmp r6, r2
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bne mainloop
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bkpt #0
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pFLASH_CTRL_BASE: .word 0x400FD000
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FLASHWRITECMD: .word 0xA4420001
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@ -0,0 +1,52 @@
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/***************************************************************************
|
||||
* Copyright (C) 2010 by Spencer Oliver *
|
||||
* spen@spen-soft.co.uk *
|
||||
* *
|
||||
* 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. *
|
||||
***************************************************************************/
|
||||
|
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.text
|
||||
.arm
|
||||
|
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/*
|
||||
r0 - source address
|
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r1 - target address
|
||||
r2 - count (halfword-16bit)
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r3 - result
|
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r4 - temp
|
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r5 - temp
|
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*/
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write:
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ldr r4, STM32_FLASH_CR
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ldr r5, STM32_FLASH_SR
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mov r3, #1
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str r3, [r4, #0]
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ldrh r3, [r0], #2
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strh r3, [r1], #2
|
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busy:
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ldr r3, [r5, #0]
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tst r3, #0x01
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beq busy
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tst r3, #0x14
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bne exit
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subs r2, r2, #1
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bne write
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exit:
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bkpt #0
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|
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STM32_FLASH_CR: .word 0x40022010
|
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STM32_FLASH_SR: .word 0x4002200C
|
||||
|
|
@ -0,0 +1,57 @@
|
|||
/***************************************************************************
|
||||
* Copyright (C) 2010 by Spencer Oliver *
|
||||
* spen@spen-soft.co.uk *
|
||||
* *
|
||||
* 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. *
|
||||
***************************************************************************/
|
||||
|
||||
.text
|
||||
.arm
|
||||
.section .init
|
||||
/*
|
||||
r0 source address
|
||||
r1 address
|
||||
r2 FLASH_CR0
|
||||
r3 dword count
|
||||
r4 result
|
||||
r5 busy mask
|
||||
*/
|
||||
|
||||
write:
|
||||
mov r4, #0x10000000 /* set DWPG bit */
|
||||
str r4, [r2, #0x0] /* FLASH_CR0 */
|
||||
str r1, [r2, #0x10] /* FLASH_AR */
|
||||
ldr r4, [r0], #4 /* load data */
|
||||
str r4, [r2, #0x8] /* FLASH_DR0 */
|
||||
ldr r4, [r0], #4 /* load data */
|
||||
str r4, [r2, #0xc] /* FLASH_DR1 */
|
||||
mov r4, #0x90000000 /* set DWPG and WMS bits */
|
||||
str r4, [r2, #0x0] /* FLASH_CR0 */
|
||||
busy:
|
||||
ldr r4, [r2, #0x0] /* FLASH_CR0 */
|
||||
tst r4, r5
|
||||
bne busy
|
||||
ldr r4, [r2, #0x14] /* FLASH_ER */
|
||||
tst r4, #0xff /* do we have errors */
|
||||
tsteq r4, #0x100 /* write protection set */
|
||||
bne exit
|
||||
add r1, r1, #0x8 /* next 8 bytes */
|
||||
subs r3, r3, #1 /* decremment dword count */
|
||||
bne write
|
||||
exit:
|
||||
b exit
|
||||
|
||||
.end
|
||||
|
|
@ -0,0 +1,54 @@
|
|||
/***************************************************************************
|
||||
* Copyright (C) 2010 by Spencer Oliver *
|
||||
* spen@spen-soft.co.uk *
|
||||
* *
|
||||
* 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. *
|
||||
***************************************************************************/
|
||||
|
||||
.text
|
||||
.arm
|
||||
.section .init
|
||||
/*
|
||||
r0 source address (in)
|
||||
r1 target address (in)
|
||||
r2 word count (in)
|
||||
r3 result (out)
|
||||
*/
|
||||
|
||||
write:
|
||||
bic r4, r1, #3 /* word address */
|
||||
mov r3, #0x40 /* write command */
|
||||
strh r3, [r4, #0]
|
||||
ldrh r3, [r0], #2 /* read data */
|
||||
strh r3, [r1], #2 /* write data */
|
||||
mov r3, #0x70 /* status command */
|
||||
strh r3, [r4, #0]
|
||||
busy:
|
||||
ldrb r3, [r4, #0] /* status */
|
||||
tst r3, #0x80
|
||||
beq busy
|
||||
mov r5, #0x50 /* clear status command */
|
||||
strh r5, [r4, #0]
|
||||
mov r5, #0xFF /* read array */
|
||||
strh r5, [r4, #0]
|
||||
tst r3, #0x12
|
||||
bne exit
|
||||
subs r2, r2, #1 /* decremment word count */
|
||||
bne write
|
||||
exit:
|
||||
bkpt #0
|
||||
|
||||
.end
|
||||
Loading…
Reference in New Issue