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| author | Grant Likely <grant.likely@secretlab.ca> | 2007-10-01 07:46:55 +1000 |
|---|---|---|
| committer | Josh Boyer <jwboyer@linux.vnet.ibm.com> | 2007-10-03 07:23:16 -0500 |
| commit | bedfc8a040378cb51f46155c980d295c2c397203 (patch) | |
| tree | 1f1dfdf1c97e6ee125a91fafc25d6725b7a96afe /arch/ppc/boot/simple/uartlite_tty.c | |
| parent | 267b49a96e30f129600bdb4f3fa6d80d6dd42523 (diff) | |
| download | linux-bedfc8a040378cb51f46155c980d295c2c397203.tar.gz linux-bedfc8a040378cb51f46155c980d295c2c397203.tar.bz2 linux-bedfc8a040378cb51f46155c980d295c2c397203.zip | |
[POWERPC] Uartlite: Flush RX fifo in bootwrapper
Flush the uartlite RX fifo so that characters typed before entry into
the zImage wrapper do not muck up the kernel command line.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Diffstat (limited to 'arch/ppc/boot/simple/uartlite_tty.c')
| -rw-r--r-- | arch/ppc/boot/simple/uartlite_tty.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/ppc/boot/simple/uartlite_tty.c b/arch/ppc/boot/simple/uartlite_tty.c index 0eae1eab38d4..ca1743e3e912 100644 --- a/arch/ppc/boot/simple/uartlite_tty.c +++ b/arch/ppc/boot/simple/uartlite_tty.c @@ -16,6 +16,14 @@ #define UARTLITE_BASEADDR ((void*)(XPAR_UARTLITE_0_BASEADDR)) +unsigned long +serial_init(int chan, void *ignored) +{ + /* Clear the RX FIFO */ + out_be32(UARTLITE_BASEADDR + 0x0C, 0x2); + return 0; +} + void serial_putc(unsigned long com_port, unsigned char c) { |