enable pullup on serial RX

this is to fix booting without serial cable attached,
where it sometimes picks up some trash due to floating RX
and interrupts u-boot countdown and enters it's prompt.

diff --git a/board/omap3/pandora/pandora.h b/board/omap3/pandora/pandora.h
index f06ee5b..367b1cc 100644 (file)
--- a/board/omap3/pandora/pandora.h
+++ b/board/omap3/pandora/pandora.h
@@ -219,7 +219,7 @@ const omap3_sysinfo sysinfo = {
  MUX_VAL(CP(UART2_RX),         (IEN  | PTD | EN  | M4)) /*GPIO_147,*/\
                                                         /*UART2_RX*/\
  /*Serial Interface (Peripheral boot, Linux console, on AV connector)*/\
- MUX_VAL(CP(UART3_RX_IRRX),    (IEN  | PTD | DIS | M0)) /*UART3_RX*/\
+ MUX_VAL(CP(UART3_RX_IRRX),    (IEN  | PTU | EN  | M0)) /*UART3_RX*/\
  MUX_VAL(CP(UART3_TX_IRTX),    (IDIS | PTD | DIS | M0)) /*UART3_TX*/\
  /*LEDs (Controlled by OMAP)*/\
  MUX_VAL(CP(MMC1_DAT6),                (IDIS | PTD | DIS | M4)) /*GPIO_128*/\