1 files changed, 6 insertions, 0 deletions

diff --git a/rbutil/mkamsboot/dualboot/dualboot.S b/rbutil/mkamsboot/dualboot/dualboot.S
index 932e91a4a3..4e4dbe5505 100644
--- a/rbutil/mkamsboot/dualboot/dualboot.S
+++ b/rbutil/mkamsboot/dualboot/dualboot.S
@@ -29,6 +29,7 @@
 .set CGU_PROC,  0xC80F0010
 .set CGU_PERI,  0xC80F0014
 .set CGU_DBOP,  0xC80F0038
+.set CCU_IO,    0xC810000C
 .set DBOP,      0xC8120000
 .set I2C_BASE,  0xC8070000
 .set I2C_DATA,  0x00
@@ -111,6 +112,11 @@ uclcopy:
 .set row, (1<<4) /* enable output on D4 */
 .set col, (1<<0) /* read keyscan column D0 */
 
+        ldr     r0, =CCU_IO
+        ldr     r1, [r0]
+        bic     r1, r1, #(3<<2) @ XPD works as general purpose IO
+        str     r1, [r0]
+
         ldr     r0, =GPIOD
         mov     r1, #((1<<5)|(1<<4)|(1<<3)) /* all rows as output */
         str     r1, [r0, #0x400]