74 lines
1.8 KiB
ArmAsm
74 lines
1.8 KiB
ArmAsm
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||
|
|
|
||
|
|
/***************************************************************************
|
||
|
|
* Copyright (C) 2015 Nemui Trinomius *
|
||
|
|
* nemuisan_kawausogasuki@live.jp *
|
||
|
|
* *
|
||
|
|
* Copyright (C) 2017 Zale Yu *
|
||
|
|
* CYYU@nuvoton.com *
|
||
|
|
* *
|
||
|
|
* Copyright (C) 2022 Jian-Hong Pan *
|
||
|
|
* chienhung.pan@gmail.com *
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
.text
|
||
|
|
.cpu cortex-m0
|
||
|
|
.thumb
|
||
|
|
|
||
|
|
/* Params:
|
||
|
|
* r0 - workarea buffer / result
|
||
|
|
* r1 - target address
|
||
|
|
* r2 - wordcount
|
||
|
|
* Clobbered:
|
||
|
|
* r4 - tmp
|
||
|
|
* r5 - tmp
|
||
|
|
* r6 - tmp
|
||
|
|
* r7 - tmp
|
||
|
|
*/
|
||
|
|
|
||
|
|
.L1:
|
||
|
|
/* for(register uint32_t i=0;i<wcount;i++){ */
|
||
|
|
mov r4, r0
|
||
|
|
mov r3, #0
|
||
|
|
.L2:
|
||
|
|
sub r5, r1, r0
|
||
|
|
add r7, r4, r5
|
||
|
|
cmp r3, r2
|
||
|
|
beq .L7
|
||
|
|
.L4:
|
||
|
|
/* NUMICRO_FLASH_ISPADR = faddr; */
|
||
|
|
ldr r6, .L8
|
||
|
|
str r7, [r6]
|
||
|
|
/* NUMICRO_FLASH_ISPDAT = *pLW; */
|
||
|
|
ldmia r4!, {r7}
|
||
|
|
ldr r5, .L8+4
|
||
|
|
str r7, [r5]
|
||
|
|
/* faddr += 4; */
|
||
|
|
/* pLW++; */
|
||
|
|
/* Trigger write action */
|
||
|
|
/* NUMICRO_FLASH_ISPTRG = ISPTRG_ISPGO; */
|
||
|
|
ldr r5, .L8+8
|
||
|
|
mov r6, #1
|
||
|
|
str r6, [r5]
|
||
|
|
.L3:
|
||
|
|
/* while((NUMICRO_FLASH_ISPTRG & ISPTRG_ISPGO) == ISPTRG_ISPGO){}; */
|
||
|
|
ldr r7, [r5]
|
||
|
|
lsl r7, r7, #31
|
||
|
|
bmi .L3
|
||
|
|
|
||
|
|
add r3, r3, #1
|
||
|
|
b .L2
|
||
|
|
.L7:
|
||
|
|
/* return (NUMICRO_FLASH_ISPCON & ISPCON_ISPFF); */
|
||
|
|
ldr r3, .L8+12
|
||
|
|
ldr r0, [r3]
|
||
|
|
mov r1, #64
|
||
|
|
and r0, r1
|
||
|
|
.L9:
|
||
|
|
bkpt #0
|
||
|
|
.L8:
|
||
|
|
.word 0x5000C004
|
||
|
|
.word 0x5000C008
|
||
|
|
.word 0x5000C010
|
||
|
|
.word 0x5000C000
|