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| author | Juergen Kilb <J.Kilb@gmx.de> | 2008-06-08 17:59:53 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2008-07-01 20:54:04 +0200 |
| commit | d92ea21bafb674ee2bf27447970b047845e7b0a2 (patch) | |
| tree | dd568faaa5210b88f7ed9d01c4bbd232e3ddb5e2 /cpu | |
| parent | b571afde0295b007a45055ee49f8822c753a5651 (diff) | |
| download | u-boot-imx-d92ea21bafb674ee2bf27447970b047845e7b0a2.zip u-boot-imx-d92ea21bafb674ee2bf27447970b047845e7b0a2.tar.gz u-boot-imx-d92ea21bafb674ee2bf27447970b047845e7b0a2.tar.bz2 | |
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 <J.Kilb@gmx.de>
Acked-by: Felix Radensky <felix@embedded-sol.com>
Diffstat (limited to 'cpu')
| -rw-r--r-- | 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) |