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imx233: always boot when powered up from 5v

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Change-Id: I3adb901d293c801f0a8493ae4f0b23af4fa535e8
This commit is contained in:
Amaury Pouly 2012-02-29 00:02:31 +01:00
parent 0d78dd170d
commit 8c0c844b7b
3 changed files with 22 additions and 11 deletions
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20
rbutil/mkimxboot/dualboot.c
View file

@ -2,13 +2,15 @@
#include "dualboot.h"
unsigned char dualboot_fuzeplus[128] = {
0x60, 0x20, 0x9f, 0xe5, 0x00, 0x20, 0x92, 0xe5, 0x01, 0x01, 0x12, 0xe3, 0x00, 0x00, 0xa0, 0x03,
0x1e, 0xff, 0x2f, 0x01, 0x70, 0x40, 0x2d, 0xe9, 0x4c, 0x20, 0x9f, 0xe5, 0x00, 0x40, 0xa0, 0xe3,
0x48, 0x30, 0x9f, 0xe5, 0x00, 0x30, 0x93, 0xe5, 0x03, 0x35, 0xa0, 0xe1, 0x23, 0x3f, 0xa0, 0xe1,
0x01, 0x00, 0x53, 0xe3, 0x03, 0x40, 0x84, 0x00, 0x01, 0x20, 0x52, 0xe2, 0xf7, 0xff, 0xff, 0x1a,
0x2c, 0x20, 0x9f, 0xe5, 0x02, 0x00, 0x54, 0xe1, 0x02, 0x00, 0x00, 0x3a, 0x00, 0x00, 0x81, 0xe5,
0x01, 0x00, 0xa0, 0xe3, 0x70, 0x80, 0xbd, 0xe8, 0x18, 0x00, 0x9f, 0xe5, 0x18, 0x10, 0x9f, 0xe5,
0x00, 0x10, 0x80, 0xe5, 0xfb, 0xff, 0xff, 0xea, 0x10, 0x86, 0x01, 0x80, 0x70, 0x64, 0x08, 0x00,
0xc0, 0x40, 0x04, 0x80, 0x80, 0x1a, 0x06, 0x00, 0x00, 0x41, 0x04, 0x80, 0x01, 0x00, 0x77, 0x3e
unsigned char dualboot_fuzeplus[152] = {
0x78, 0x20, 0x9f, 0xe5, 0x00, 0x20, 0x92, 0xe5, 0x01, 0x01, 0x12, 0xe3, 0x00, 0x00, 0xa0, 0x03,
0x1e, 0xff, 0x2f, 0x01, 0x70, 0x40, 0x2d, 0xe9, 0x64, 0x20, 0x9f, 0xe5, 0x00, 0x20, 0x92, 0xe5,
0x02, 0x21, 0xa0, 0xe1, 0x22, 0x2d, 0xa0, 0xe1, 0x20, 0x00, 0x12, 0xe3, 0x0c, 0x00, 0x00, 0x1a,
0x50, 0x20, 0x9f, 0xe5, 0x00, 0x40, 0xa0, 0xe3, 0x44, 0x30, 0x9f, 0xe5, 0x00, 0x30, 0x93, 0xe5,
0x03, 0x35, 0xa0, 0xe1, 0x23, 0x3f, 0xa0, 0xe1, 0x01, 0x00, 0x53, 0xe3, 0x03, 0x40, 0x84, 0x00,
0x01, 0x20, 0x52, 0xe2, 0xf7, 0xff, 0xff, 0x1a, 0x2c, 0x20, 0x9f, 0xe5, 0x02, 0x00, 0x54, 0xe1,
0x02, 0x00, 0x00, 0x3a, 0x00, 0x00, 0x81, 0xe5, 0x01, 0x00, 0xa0, 0xe3, 0x70, 0x80, 0xbd, 0xe8,
0x18, 0x00, 0x9f, 0xe5, 0x18, 0x10, 0x9f, 0xe5, 0x00, 0x10, 0x80, 0xe5, 0xfb, 0xff, 0xff, 0xea,
0x10, 0x86, 0x01, 0x80, 0xc0, 0x40, 0x04, 0x80, 0x70, 0x64, 0x08, 0x00, 0x80, 0x1a, 0x06, 0x00,
0x00, 0x41, 0x04, 0x80, 0x01, 0x00, 0x77, 0x3e
};

2
rbutil/mkimxboot/dualboot.h
View file

@ -1,3 +1,3 @@
/* Generated by bin2c */
extern unsigned char dualboot_fuzeplus[128];
extern unsigned char dualboot_fuzeplus[152];

11
rbutil/mkimxboot/dualboot/dualboot.S
View file

@ -30,8 +30,16 @@ start:
tst r2, #0x40000000 @ bit 30, active low
moveq r0, #0 @ return 0, continue boot
bxeq lr
/* otherwise monitor the power button for a short time */
/* save registers for the ROM */
stmfd sp!, {r4-r6,lr}
/* if the power source was 5v (ie usb), bypass the power button delay */
ldr r2, =0x800440c0 @ HW_POWER_STS
ldr r2, [r2]
mov r2, r2, lsl#2
mov r2, r2, lsr#26 @ extract PWRUP_SOURCE
tst r2, #0x20 @ bit 5: five volts
bne boot_rockbox
/* otherwise monitor the power button for a short time */
ldr r2, =550000 @ loop count
ldr r4, =0 @ number of times PSWITCH was 1
pswitch_monitor_loop:
@ -48,6 +56,7 @@ pswitch_monitor_loop:
cmp r4, r2
bcc power_down
/* jump to section given as argument */
boot_rockbox:
str r0, [r1]
mov r0, #1
ldmfd sp!, {r4-r6,pc}