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D2: Update dual boot to use the hold switch. Update bootloader to show messages until HOLD released, keep holding POWER to show old debug screen (these modes will eventually be removed).

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17032 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rob Purchase 2008-04-08 08:01:18 +00:00
parent d74117450c
commit f4deea6027
2 changed files with 14 additions and 16 deletions
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6
firmware/target/arm/tcc780x/crt0.S
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@ -72,9 +72,9 @@ start_loc:
#ifdef TCCBOOT
#ifdef COWON_D2
ldr r0, =0xf005a000
ldr r0, [r0, #0x40] /* Read GPIO B */
tst r0, #0x4
ldreq pc, [pc, #-28] /* Jump to original firmware if keypad not pressed */
ldr r0, [r0, #0x20] /* Read GPIO A */
tst r0, #0x8
ldrne pc, [pc, #-28] /* Jump to original firmware if HOLD not pressed */
#else
#error No bootup key detection implemented for this target
#endif