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 <[EMAIL PROTECTED]>
---
cpu/arm1136/mx31/serial.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/cpu/arm1136/mx31/serial.c b/cpu/arm1136/mx31/serial.c
index 1cad8f9..f498599 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)
--
1.5.5.1
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