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change the D2 bootloader to boot rockbox by default. boot OF is hold is on or usb is connected

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27007 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jonathan Gordon 2010-06-21 10:51:39 +00:00
parent 816fca820c
commit e7a4b96f6e
1 changed files with 6 additions and 2 deletions
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8
firmware/target/arm/tcc780x/crt0.S
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@ -74,14 +74,18 @@ start_loc:
ldr r0, =0xf005a000
ldr r0, [r0, #0x20] /* Read GPIO A */
tst r0, #0x8
ldrne pc, [pc, #-28] /* Jump to original firmware if HOLD not pressed */
ldreq pc, [pc, #-28] /* Jump to original firmware if HOLD pressed */
ldr r0, =0xf005a000
ldr r0, [r0, #0x60] /* Read GPIO C */
tst r0, #0x4000000
ldreq pc, [pc, #-44] /* Jump to original firmware if usb connected */
#else
#error No bootup key detection implemented for this target
#endif
/* Copy bootloader to safe area - 0x21F00000 (end of DRAM) */
/* TODO: Adjust this for other targets - DRAM + DRAMSIZE - 0x100000 */
ldr r0, [pc, #-28]
ldr r0, [pc, #-44]
mov r1, #0x22000000
sub r1, r1, #0x100000
ldr r2, =_dataend