From d92ea21bafb674ee2bf27447970b047845e7b0a2 Mon Sep 17 00:00:00 2001 From: Juergen Kilb Date: Sun, 8 Jun 2008 17:59:53 +0200 Subject: [PATCH] i.MX31: fixed CTRL-C detection The Register URXD contains status information in bits [15..8]. With status bit 15 set, CTRL-C was reported as 0x8003 instead of 0x03. Therefore CTRL-C was not detected. To solve this, bits [15..8] were masked out now. Signed-off-by: Juergen Kilb Acked-by: Felix Radensky --- cpu/arm1136/mx31/serial.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/cpu/arm1136/mx31/serial.c b/cpu/arm1136/mx31/serial.c index 1cad8f9d8c..f498599419 100644 --- a/cpu/arm1136/mx31/serial.c +++ b/cpu/arm1136/mx31/serial.c @@ -63,6 +63,7 @@ #define URXD_FRMERR (1<<12) #define URXD_BRK (1<<11) #define URXD_PRERR (1<<10) +#define URXD_RX_DATA (0xFF) #define UCR1_ADEN (1<<15) /* Auto dectect interrupt */ #define UCR1_ADBR (1<<14) /* Auto detect baud rate */ #define UCR1_TRDYEN (1<<13) /* Transmitter ready interrupt enable */ @@ -165,7 +166,7 @@ void serial_setbrg (void) int serial_getc (void) { while (__REG(UART_PHYS + UTS) & UTS_RXEMPTY); - return __REG(UART_PHYS + URXD); + return (__REG(UART_PHYS + URXD) & URXD_RX_DATA); /* mask out status from upper word */ } void serial_putc (const char c) -- 2.25.1