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mkamsboot: don't boot OF when USB is plugged

Browse source 
USB now works on all models

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31379 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2011-12-20 18:48:14 +00:00
parent dafbcadd36
commit 6a94f6b551
3 changed files with 34 additions and 134 deletions
Download patch file Download diff file Expand all files Collapse all files

84
rbutil/mkamsboot/dualboot.c
View file

@ -89,70 +89,48 @@ unsigned char dualboot_fuze[176] = {
0x01, 0x20, 0x43, 0xe4, 0x04, 0x00, 0x53, 0xe1, 0xfb, 0xff, 0xff, 0x1a, 0x01, 0x00, 0x83, 0xe2, 0x01, 0x20, 0x43, 0xe4, 0x04, 0x00, 0x53, 0xe1, 0xfb, 0xff, 0xff, 0x1a, 0x01, 0x00, 0x83, 0xe2,
0x00, 0x20, 0xa0, 0xe3, 0x15, 0xff, 0x2f, 0xe1, 0x14, 0x00, 0x0f, 0xc8, 0x00, 0x00, 0x0d, 0xc8 0x00, 0x20, 0xa0, 0xe3, 0x15, 0xff, 0x2f, 0xe1, 0x14, 0x00, 0x0f, 0xc8, 0x00, 0x00, 0x0d, 0xc8
}; };
unsigned char dualboot_clipv2[248] = { unsigned char dualboot_clipv2[220] = {
0x06, 0x00, 0x00, 0xea, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0xea, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x24, 0x00, 0x1f, 0xe5, 0x24, 0x10, 0x1f, 0xe5, 0x01, 0x20, 0x40, 0xe0, 0x18, 0x30, 0x1f, 0xe5, 0x24, 0x00, 0x1f, 0xe5, 0x24, 0x10, 0x1f, 0xe5, 0x01, 0x20, 0x40, 0xe0, 0x18, 0x30, 0x1f, 0xe5,
0x01, 0x40, 0x50, 0xe4, 0x01, 0x40, 0x43, 0xe4, 0x00, 0x00, 0x52, 0xe1, 0xfb, 0xff, 0xff, 0x1a, 0x01, 0x40, 0x50, 0xe4, 0x01, 0x40, 0x43, 0xe4, 0x00, 0x00, 0x52, 0xe1, 0xfb, 0xff, 0xff, 0x1a,
0x2c, 0x30, 0x0f, 0xe5, 0xa0, 0x00, 0x9f, 0xe5, 0x00, 0x10, 0x90, 0xe5, 0x01, 0x18, 0x81, 0xe3, 0x2c, 0x30, 0x0f, 0xe5, 0x88, 0x00, 0x9f, 0xe5, 0x00, 0x10, 0x90, 0xe5, 0x01, 0x18, 0x81, 0xe3,
0x00, 0x10, 0x80, 0xe5, 0x94, 0x00, 0x9f, 0xe5, 0x00, 0x10, 0xa0, 0xe3, 0x00, 0x14, 0x80, 0xe5, 0x00, 0x10, 0x80, 0xe5, 0x7c, 0x00, 0x9f, 0xe5, 0x38, 0x10, 0xa0, 0xe3, 0x00, 0x14, 0x80, 0xe5,
0x00, 0x11, 0x90, 0xe5, 0x00, 0x00, 0x51, 0xe3, 0x13, 0x00, 0x00, 0x1a, 0x80, 0x00, 0x9f, 0xe5, 0x08, 0x10, 0xa0, 0xe3, 0x20, 0x10, 0x80, 0xe5, 0x10, 0x10, 0xa0, 0xe3, 0x40, 0x10, 0x80, 0xe5,
0x38, 0x10, 0xa0, 0xe3, 0x00, 0x14, 0x80, 0xe5, 0x08, 0x10, 0xa0, 0xe3, 0x20, 0x10, 0x80, 0xe5, 0x20, 0x10, 0xa0, 0xe3, 0x80, 0x10, 0x80, 0xe5, 0x00, 0x10, 0xa0, 0xe3, 0x40, 0x10, 0x80, 0xe5,
0x10, 0x10, 0xa0, 0xe3, 0x40, 0x10, 0x80, 0xe5, 0x20, 0x10, 0xa0, 0xe3, 0x80, 0x10, 0x80, 0xe5, 0x05, 0x10, 0xa0, 0xe3, 0x01, 0x10, 0x51, 0xe2, 0xfd, 0xff, 0xff, 0x1a, 0x04, 0x10, 0x90, 0xe5,
0x00, 0x10, 0xa0, 0xe3, 0x40, 0x10, 0x80, 0xe5, 0x05, 0x10, 0xa0, 0xe3, 0x01, 0x10, 0x51, 0xe2, 0x00, 0x00, 0x51, 0xe3, 0x02, 0x00, 0x00, 0x0a, 0x8c, 0x00, 0x1f, 0xe5, 0x8c, 0x10, 0x1f, 0xe5,
0xfd, 0xff, 0xff, 0x1a, 0x04, 0x10, 0x90, 0xe5, 0x00, 0x00, 0x51, 0xe3, 0x02, 0x00, 0x00, 0x0a, 0x01, 0x00, 0x00, 0xea, 0xa0, 0x00, 0x1f, 0xe5, 0xa0, 0x10, 0x1f, 0xe5, 0x98, 0x30, 0x1f, 0xe5,
0xa4, 0x00, 0x1f, 0xe5, 0xa4, 0x10, 0x1f, 0xe5, 0x01, 0x00, 0x00, 0xea, 0xb8, 0x00, 0x1f, 0xe5, 0x02, 0x50, 0x83, 0xe2, 0x01, 0x40, 0x43, 0xe0, 0x01, 0x20, 0x50, 0xe4, 0x01, 0x20, 0x43, 0xe4,
0xb8, 0x10, 0x1f, 0xe5, 0xb0, 0x30, 0x1f, 0xe5, 0x02, 0x50, 0x83, 0xe2, 0x01, 0x40, 0x43, 0xe0, 0x04, 0x00, 0x53, 0xe1, 0xfb, 0xff, 0xff, 0x1a, 0x01, 0x00, 0x83, 0xe2, 0x00, 0x20, 0xa0, 0xe3,
0x15, 0xff, 0x2f, 0xe1, 0x14, 0x00, 0x0f, 0xc8, 0x00, 0x00, 0x0e, 0xc8
};
unsigned char dualboot_clipplus[184] = {
0x06, 0x00, 0x00, 0xea, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x24, 0x00, 0x1f, 0xe5, 0x24, 0x10, 0x1f, 0xe5, 0x01, 0x20, 0x40, 0xe0, 0x18, 0x30, 0x1f, 0xe5,
0x01, 0x40, 0x50, 0xe4, 0x01, 0x40, 0x43, 0xe4, 0x00, 0x00, 0x52, 0xe1, 0xfb, 0xff, 0xff, 0x1a,
0x2c, 0x30, 0x0f, 0xe5, 0x60, 0x00, 0x9f, 0xe5, 0x00, 0x10, 0x90, 0xe5, 0x01, 0x18, 0x81, 0xe3,
0x00, 0x10, 0x80, 0xe5, 0x54, 0x00, 0x9f, 0xe5, 0x20, 0x10, 0x90, 0xe5, 0x50, 0x00, 0x9f, 0xe5,
0x08, 0x20, 0x90, 0xe5, 0x01, 0x20, 0x82, 0xe1, 0x00, 0x00, 0x52, 0xe3, 0x02, 0x00, 0x00, 0x1a,
0x64, 0x00, 0x1f, 0xe5, 0x64, 0x10, 0x1f, 0xe5, 0x01, 0x00, 0x00, 0xea, 0x78, 0x00, 0x1f, 0xe5,
0x78, 0x10, 0x1f, 0xe5, 0x70, 0x30, 0x1f, 0xe5, 0x02, 0x50, 0x83, 0xe2, 0x01, 0x40, 0x43, 0xe0,
0x01, 0x20, 0x50, 0xe4, 0x01, 0x20, 0x43, 0xe4, 0x04, 0x00, 0x53, 0xe1, 0xfb, 0xff, 0xff, 0x1a, 0x01, 0x20, 0x50, 0xe4, 0x01, 0x20, 0x43, 0xe4, 0x04, 0x00, 0x53, 0xe1, 0xfb, 0xff, 0xff, 0x1a,
0x01, 0x00, 0x83, 0xe2, 0x00, 0x20, 0xa0, 0xe3, 0x15, 0xff, 0x2f, 0xe1, 0x14, 0x00, 0x0f, 0xc8, 0x01, 0x00, 0x83, 0xe2, 0x00, 0x20, 0xa0, 0xe3, 0x15, 0xff, 0x2f, 0xe1, 0x14, 0x00, 0x0f, 0xc8,
0x00, 0x00, 0x0b, 0xc8, 0x00, 0x00, 0x0e, 0xc8 0x00, 0x00, 0x0d, 0xc8, 0x00, 0x00, 0x0b, 0xc8
}; };
unsigned char dualboot_clipplus[340] = { unsigned char dualboot_fuzev2[176] = {
0x06, 0x00, 0x00, 0xea, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0xea, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x24, 0x00, 0x1f, 0xe5, 0x24, 0x10, 0x1f, 0xe5, 0x01, 0x20, 0x40, 0xe0, 0x18, 0x30, 0x1f, 0xe5, 0x24, 0x00, 0x1f, 0xe5, 0x24, 0x10, 0x1f, 0xe5, 0x01, 0x20, 0x40, 0xe0, 0x18, 0x30, 0x1f, 0xe5,
0x01, 0x40, 0x50, 0xe4, 0x01, 0x40, 0x43, 0xe4, 0x00, 0x00, 0x52, 0xe1, 0xfb, 0xff, 0xff, 0x1a, 0x01, 0x40, 0x50, 0xe4, 0x01, 0x40, 0x43, 0xe4, 0x00, 0x00, 0x52, 0xe1, 0xfb, 0xff, 0xff, 0x1a,
0x2c, 0x30, 0x0f, 0xe5, 0xf4, 0x00, 0x9f, 0xe5, 0x00, 0x10, 0x90, 0xe5, 0x01, 0x18, 0x81, 0xe3, 0x2c, 0x30, 0x0f, 0xe5, 0x5c, 0x00, 0x9f, 0xe5, 0x00, 0x10, 0x90, 0xe5, 0x01, 0x18, 0x81, 0xe3,
0x00, 0x10, 0x80, 0xe5, 0xe8, 0x00, 0x9f, 0xe5, 0x20, 0x10, 0x90, 0xe5, 0xe4, 0x00, 0x9f, 0xe5, 0x00, 0x10, 0x80, 0xe5, 0x50, 0x00, 0x9f, 0xe5, 0x00, 0x10, 0xa0, 0xe3, 0x00, 0x14, 0x80, 0xe5,
0x08, 0x20, 0x90, 0xe5, 0x01, 0x20, 0x82, 0xe1, 0x00, 0x00, 0x52, 0xe3, 0x27, 0x00, 0x00, 0x1a, 0x20, 0x10, 0x90, 0xe5, 0x00, 0x00, 0x51, 0xe3, 0x02, 0x00, 0x00, 0x1a, 0x60, 0x00, 0x1f, 0xe5,
0xd4, 0x00, 0x9f, 0xe5, 0x00, 0x10, 0xa0, 0xe3, 0x00, 0x10, 0x80, 0xe5, 0xbc, 0x00, 0x9f, 0xe5, 0x60, 0x10, 0x1f, 0xe5, 0x01, 0x00, 0x00, 0xea, 0x74, 0x00, 0x1f, 0xe5, 0x74, 0x10, 0x1f, 0xe5,
0x00, 0x10, 0x90, 0xe5, 0x02, 0x18, 0x81, 0xe3, 0x7f, 0x10, 0xc1, 0xe3, 0x00, 0x10, 0x80, 0xe5, 0x6c, 0x30, 0x1f, 0xe5, 0x02, 0x50, 0x83, 0xe2, 0x01, 0x40, 0x43, 0xe0, 0x01, 0x20, 0x50, 0xe4,
0xb8, 0x00, 0x9f, 0xe5, 0x00, 0x10, 0xa0, 0xe3, 0x24, 0x10, 0x80, 0xe5, 0x3c, 0x10, 0xa0, 0xe3, 0x01, 0x20, 0x43, 0xe4, 0x04, 0x00, 0x53, 0xe1, 0xfb, 0xff, 0xff, 0x1a, 0x01, 0x00, 0x83, 0xe2,
0x1c, 0x10, 0x80, 0xe5, 0x00, 0x10, 0xa0, 0xe3, 0x20, 0x10, 0x80, 0xe5, 0x8c, 0x10, 0xa0, 0xe3, 0x00, 0x20, 0xa0, 0xe3, 0x15, 0xff, 0x2f, 0xe1, 0x14, 0x00, 0x0f, 0xc8, 0x00, 0x00, 0x0d, 0xc8
0x04, 0x10, 0x80, 0xe5, 0x51, 0x20, 0xa0, 0xe3, 0x0c, 0x20, 0x80, 0xe5, 0x30, 0x10, 0x90, 0xe5,
0x01, 0x00, 0x11, 0xe3, 0xfc, 0xff, 0xff, 0x1a, 0x02, 0x17, 0xa0, 0xe3, 0x01, 0x10, 0x51, 0xe2,
0xfd, 0xff, 0xff, 0x1a, 0x25, 0x10, 0xa0, 0xe3, 0x44, 0x10, 0x80, 0xe5, 0x02, 0x20, 0x82, 0xe3,
0x0c, 0x20, 0x80, 0xe5, 0x01, 0x10, 0xa0, 0xe3, 0x10, 0x10, 0x80, 0xe5, 0x10, 0x10, 0x90, 0xe5,
0x00, 0x00, 0x51, 0xe3, 0xfc, 0xff, 0xff, 0x1a, 0x00, 0x10, 0x90, 0xe5, 0x08, 0x00, 0x11, 0xe3,
0x02, 0x00, 0x00, 0x1a, 0xf8, 0x00, 0x1f, 0xe5, 0xf8, 0x10, 0x1f, 0xe5, 0x01, 0x00, 0x00, 0xea,
0x0c, 0x01, 0x1f, 0xe5, 0x0c, 0x11, 0x1f, 0xe5, 0x04, 0x31, 0x1f, 0xe5, 0x02, 0x50, 0x83, 0xe2,
0x01, 0x40, 0x43, 0xe0, 0x01, 0x20, 0x50, 0xe4, 0x01, 0x20, 0x43, 0xe4, 0x04, 0x00, 0x53, 0xe1,
0xfb, 0xff, 0xff, 0x1a, 0x01, 0x00, 0x83, 0xe2, 0x00, 0x20, 0xa0, 0xe3, 0x15, 0xff, 0x2f, 0xe1,
0x14, 0x00, 0x0f, 0xc8, 0x00, 0x00, 0x0d, 0xc8, 0x00, 0x00, 0x0b, 0xc8, 0x10, 0x00, 0x0f, 0xc8,
0x00, 0x00, 0x07, 0xc8
};
unsigned char dualboot_fuzev2[332] = {
0x06, 0x00, 0x00, 0xea, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x24, 0x00, 0x1f, 0xe5, 0x24, 0x10, 0x1f, 0xe5, 0x01, 0x20, 0x40, 0xe0, 0x18, 0x30, 0x1f, 0xe5,
0x01, 0x40, 0x50, 0xe4, 0x01, 0x40, 0x43, 0xe4, 0x00, 0x00, 0x52, 0xe1, 0xfb, 0xff, 0xff, 0x1a,
0x2c, 0x30, 0x0f, 0xe5, 0xf0, 0x00, 0x9f, 0xe5, 0x00, 0x10, 0x90, 0xe5, 0x01, 0x18, 0x81, 0xe3,
0x00, 0x10, 0x80, 0xe5, 0xe4, 0x00, 0x9f, 0xe5, 0x00, 0x10, 0xa0, 0xe3, 0x00, 0x14, 0x80, 0xe5,
0x20, 0x10, 0x90, 0xe5, 0x00, 0x00, 0x51, 0xe3, 0x27, 0x00, 0x00, 0x1a, 0xd0, 0x00, 0x9f, 0xe5,
0x00, 0x10, 0xa0, 0xe3, 0x00, 0x10, 0x80, 0xe5, 0xbc, 0x00, 0x9f, 0xe5, 0x00, 0x10, 0x90, 0xe5,
0x02, 0x18, 0x81, 0xe3, 0x7f, 0x10, 0xc1, 0xe3, 0x00, 0x10, 0x80, 0xe5, 0xb4, 0x00, 0x9f, 0xe5,
0x00, 0x10, 0xa0, 0xe3, 0x24, 0x10, 0x80, 0xe5, 0x3c, 0x10, 0xa0, 0xe3, 0x1c, 0x10, 0x80, 0xe5,
0x00, 0x10, 0xa0, 0xe3, 0x20, 0x10, 0x80, 0xe5, 0x8c, 0x10, 0xa0, 0xe3, 0x04, 0x10, 0x80, 0xe5,
0x51, 0x20, 0xa0, 0xe3, 0x0c, 0x20, 0x80, 0xe5, 0x30, 0x10, 0x90, 0xe5, 0x01, 0x00, 0x11, 0xe3,
0xfc, 0xff, 0xff, 0x1a, 0x02, 0x17, 0xa0, 0xe3, 0x01, 0x10, 0x51, 0xe2, 0xfd, 0xff, 0xff, 0x1a,
0x25, 0x10, 0xa0, 0xe3, 0x44, 0x10, 0x80, 0xe5, 0x02, 0x20, 0x82, 0xe3, 0x0c, 0x20, 0x80, 0xe5,
0x01, 0x10, 0xa0, 0xe3, 0x10, 0x10, 0x80, 0xe5, 0x10, 0x10, 0x90, 0xe5, 0x00, 0x00, 0x51, 0xe3,
0xfc, 0xff, 0xff, 0x1a, 0x00, 0x10, 0x90, 0xe5, 0x08, 0x00, 0x11, 0xe3, 0x02, 0x00, 0x00, 0x1a,
0xf4, 0x00, 0x1f, 0xe5, 0xf4, 0x10, 0x1f, 0xe5, 0x01, 0x00, 0x00, 0xea, 0x08, 0x01, 0x1f, 0xe5,
0x08, 0x11, 0x1f, 0xe5, 0x00, 0x31, 0x1f, 0xe5, 0x02, 0x50, 0x83, 0xe2, 0x01, 0x40, 0x43, 0xe0,
0x01, 0x20, 0x50, 0xe4, 0x01, 0x20, 0x43, 0xe4, 0x04, 0x00, 0x53, 0xe1, 0xfb, 0xff, 0xff, 0x1a,
0x01, 0x00, 0x83, 0xe2, 0x00, 0x20, 0xa0, 0xe3, 0x15, 0xff, 0x2f, 0xe1, 0x14, 0x00, 0x0f, 0xc8,
0x00, 0x00, 0x0d, 0xc8, 0x10, 0x00, 0x0f, 0xc8, 0x00, 0x00, 0x07, 0xc8
}; };
unsigned char dualboot_clipzip[232] = { unsigned char dualboot_clipzip[232] = {
0x06, 0x00, 0x00, 0xea, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0xea, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

6
rbutil/mkamsboot/dualboot.h
View file

@ -6,7 +6,7 @@ extern unsigned char dualboot_e200v2[176];
extern unsigned char dualboot_c200v2[272]; extern unsigned char dualboot_c200v2[272];
extern unsigned char dualboot_m200v4[180]; extern unsigned char dualboot_m200v4[180];
extern unsigned char dualboot_fuze[176]; extern unsigned char dualboot_fuze[176];
extern unsigned char dualboot_clipv2[248]; extern unsigned char dualboot_clipv2[220];
extern unsigned char dualboot_clipplus[340]; extern unsigned char dualboot_clipplus[184];
extern unsigned char dualboot_fuzev2[332]; extern unsigned char dualboot_fuzev2[176];
extern unsigned char dualboot_clipzip[232]; extern unsigned char dualboot_clipzip[232];

78
rbutil/mkamsboot/dualboot/dualboot.S
View file

@ -89,15 +89,6 @@ uclcopy:
orr r1, r1, #(1<<16) orr r1, r1, #(1<<16)
str r1, [r0] str r1, [r0]
#ifdef SANSA_CLIPV2 /* TODO : remove this check when we'll have an USB driver */
ldr r0, =GPIOA
mov r1, #0
str r1, [r0, #0x400]
ldr r1, [r0, #(4*(1<<6))]
cmp r1, #0
bne boot_of
#endif
/* Here are model specific tests for dual boot (test left button) */ /* Here are model specific tests for dual boot (test left button) */
#ifdef SANSA_CLIP #ifdef SANSA_CLIP
@ -273,75 +264,6 @@ uclcopy:
#error No target-specific key check defined! #error No target-specific key check defined!
#endif #endif
#if defined(SANSA_CLIPPLUS) || defined(SANSA_FUZEV2)
/* Check for USB after buttons because I trust more the GPIO code than
* the i2c code.
* Also it seems we need to wait a bit before detecting USB connection
* on those models, but not on c200v2
*/
ldr r0, =CGU_PROC
mov r1, #0
str r1, [r0] @ fclk = 24MHz
ldr r0, =CGU_PERI
ldr r1, [r0]
/* enable i2c audio master clock */
orr r1, r1, #(1<<17)
/* pclk = fclk = 24MHz */
bic r1, r1, #0x7f
str r1, [r0]
ldr r0, =I2C_BASE
/* disable i2c interrupts */
mov r1, #0
str r1, [r0, #I2C_IMR]
/* setup prescaler */
mov r1, #I2C_PRESCALER_LOW
str r1, [r0, #I2C_CPSR0]
mov r1, #I2C_PRESCALER_HIGH
str r1, [r0, #I2C_CPSR1]
/* setup i2c slave address */
mov r1, #(AS3514_I2C_ADDR << 1)
str r1, [r0, #I2C_SLAD0]
mov r2, #0x51
str r2, [r0, #I2C_CNTRL]
/* wait for not busy */
1:
ldr r1, [r0, #I2C_SR]
tst r1, #1
bne 1b
/* wait a bit (~100ms) else detection fails */
mov r1, #0x80000
1: subs r1, r1, #1
bne 1b
/* start read of irq_enrd0 */
mov r1, #AS3514_IRQ_ENRD0
str r1, [r0, #I2C_SADDR]
orr r2, r2, #(1 << 1)
str r2, [r0, #I2C_CNTRL]
mov r1, #1
str r1, [r0, #I2C_DACNT]
/* wait for transfer to finish */
1:
ldr r1, [r0, #I2C_DACNT]
cmp r1, #0
bne 1b
/* load result and test USB_STATUS bit */
ldr r1, [r0, #I2C_DATA]
tst r1, #(1 << 3)
bne boot_of
#endif
/* The dualboot button was not held, so we boot rockbox */ /* The dualboot button was not held, so we boot rockbox */
ldr r0, ucl_rb_end /* Address of compressed image */ ldr r0, ucl_rb_end /* Address of compressed image */
ldr r1, ucl_rb_size /* Compressed size */ ldr r1, ucl_rb_size /* Compressed size */