diff options
| author | Rafaël Carré <rafael.carre@gmail.com> | 2011-12-02 18:31:40 +0000 |
|---|---|---|
| committer | Rafaël Carré <rafael.carre@gmail.com> | 2011-12-02 18:31:40 +0000 |
| commit | 444b17626fc8e1ed7dee23252d3bd0fe5d0020f9 (patch) | |
| tree | 561fd2af5e56fb3d2d9f01d9b442697a6f9d7156 /rbutil/mkamsboot/dualboot | |
| parent | ab76a0db287f41c100be1d467a4077fd60789d72 (diff) | |
mkamsboot: make clip zip boot OF when pressing left button
pressing vol- to boot OF is still possible
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31112 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'rbutil/mkamsboot/dualboot')
| -rw-r--r-- | rbutil/mkamsboot/dualboot/dualboot.S | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/rbutil/mkamsboot/dualboot/dualboot.S b/rbutil/mkamsboot/dualboot/dualboot.S index 4df69a45cc..fae13df0e9 100644 --- a/rbutil/mkamsboot/dualboot/dualboot.S +++ b/rbutil/mkamsboot/dualboot/dualboot.S @@ -182,6 +182,27 @@ uclcopy: cmp r1, #0 @ test input from pins bne boot_of @ branch directly to OF if either pin high + ldr r0, =GPIOC + + ldr r1, [r0, #0x400] + orr r1, r1, #((1<<1)|(1<<2)) @ output + bic r1, r1, #(1<<5) @ input + str r1, [r0, #0x400] + + mov r1, #0 + str r1, [r0, #4*(1<<1)] @ zero C1 + mov r1, #(1<<2) + str r1, [r0, #4*(1<<2)] @ set C2 + + mov r1, #50 /* small delay */ +1: subs r1, r1, #1 + bne 1b + + ldr r1, [r0, #4*(1<<5)] @ read C5 = left + + cmp r1, #0 + bne boot_of + #elif defined(SANSA_C200V2) .set BUTTON_LEFT, (1<< 2) .set BUTTON_DOWN, (1<< 3) |