This patch prevents to stop the autoboot randomly for the CALAO MB-QIL-A9260.
Indeed on this board, there's no pull-up on the RX inputs for the DBGU, COM1 & COM2 serial port.
With pull-up enabled, there's no longer unwanted character received from these console (CONFIG_CONSOLE_ACTIVATE_ALL=y).
Signed-off-by: Gregory Hermant <gregory.hermant@xxxxxxxxxxxxxxxxx>
---
arch/arm/boards/qil-a9260/init.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boards/qil-a9260/init.c b/arch/arm/boards/qil-a9260/init.c
index 305d733..b43cace 100644
--- a/arch/arm/boards/qil-a9260/init.c
+++ b/arch/arm/boards/qil-a9260/init.c
@@ -196,11 +196,17 @@ device_initcall(qil_a9260_devices_init);
static int qil_a9260_console_init(void)
{
at91_register_uart(0, 0);
+ at91_set_A_periph(AT91_PIN_PB14, 1); /* Enable pull-up on DRXD */
+
at91_register_uart(1, ATMEL_UART_CTS | ATMEL_UART_RTS
| ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
| ATMEL_UART_RI);
+
at91_register_uart(2, ATMEL_UART_CTS | ATMEL_UART_RTS);
+ at91_set_A_periph(AT91_PIN_PB7, 1); /* Enable pull-up on RXD1 */
+
at91_register_uart(3, ATMEL_UART_CTS | ATMEL_UART_RTS);
+ at91_set_A_periph(AT91_PIN_PB9, 1); /* Enable pull-up on RXD2 */
return 0;
}
--
1.5.6.3
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