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rk27xx: add rolo_restart() rk27xx specific variant

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Change-Id: Ib786a9ef6318d259ecef783becdd7c0fa6f52730
This commit is contained in:
Marcin Bukat 2012-03-02 16:28:33 +01:00
parent 4718ff9db0
commit f30043a0db
2 changed files with 71 additions and 1 deletions
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3
firmware/SOURCES
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@ -1468,7 +1468,6 @@ target/arm/s5l8702/ipod6g/piezo-ipod6g.c
#if CONFIG_CPU == RK27XX
target/arm/rk27xx/kernel-rk27xx.c
target/arm/rk27xx/system-rk27xx.c
target/arm/rk27xx/timer-rk27xx.c
target/arm/rk27xx/backlight-rk27xx.c
target/arm/rk27xx/adc-rk27xx.c
target/arm/rk27xx/sd-rk27xx.c
@ -1478,6 +1477,8 @@ target/arm/rk27xx/usb-rk27xx.c
target/arm/rk27xx/lcdif-rk27xx.c
target/arm/rk27xx/rkw-loader.c
#ifndef BOOTLOADER
target/arm/rk27xx/timer-rk27xx.c
target/arm/rk27xx/rolo_restart.S
target/arm/rk27xx/pcm-rk27xx.c
target/arm/rk27xx/debug-rk27xx.c
#endif

69
firmware/target/arm/rk27xx/rolo_restart.S Normal file
View file

@ -0,0 +1,69 @@
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
* Copyright (C) 2008 by Michael Sevakis
* Copyright (C) 2012 by Marcin Bukat
*
* RoLo firmware restart code for rk27xx
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "cpu.h"
/****************************************************************************
* void rolo_restart(const unsigned char* source, unsigned char* dest,
* int length);
*/
.section .text, "ax", %progbits
.align 2
.global rolo_restart
rolo_restart:
/* Disable cache */
ldr r4, =0xefff0000
ldrh r5, [r4]
strh r5, [r4]
adr r4, restart_copy_start
adr r5, restart_copy_end
ldr r6, =0x18200000
mov r7, r6
/* Copy stub to IRAM */
1:
ldr r8, [r4], #4
str r8, [r7], #4
cmp r5, r4
bhi 1b
/* Branch to stub */
bx r6
restart_copy_start:
/* Trivial copy of firmware to final location
* this version assumes that src and dst are
* word aligned
*/
mov r4, r1
1:
subs r2, r2, #4
ldr r7, [r0], #4
str r7, [r4], #4
bge 1b
/* Branch to destination */
bx r1
restart_copy_end:
.size rolo_restart,.-rolo_restart