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| author | Tom Rini <trini@kernel.crashing.org> | 2005-09-09 13:01:47 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-09 13:57:29 -0700 |
| commit | 66b375bf7d9c995fd6169191c3862071e710f456 (patch) | |
| tree | 3a6e724785c90a92c6a7a8159a6438d95cd912a9 /arch | |
| parent | 99cc2192132ab28c495d015ed2e95dc29e2a27ad (diff) | |
| download | linux-stable-66b375bf7d9c995fd6169191c3862071e710f456.tar.gz linux-stable-66b375bf7d9c995fd6169191c3862071e710f456.tar.bz2 linux-stable-66b375bf7d9c995fd6169191c3862071e710f456.zip | |
[PATCH] ppc32: In the boot code, don't rely on BASE_BAUD directly
Modifies serial_init to get base baud rate from the rs_table entry instead
of BAUD_BASE. This patch eliminates duplication between the
SERIAL_PORT_DFNS macro and BAUD_BASE. Without the patch, if a port set the
baud rate in SERIAL_PORT_DFNS, but did not update BASE_BAUD, the BASE_BAUD
value would still be used.
Signed-off-by: Grant Likely <grant.likely@gdcanada.com>
Signed-off-by: Tom Rini <trini@kernel.crashing.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/ppc/boot/common/ns16550.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/ppc/boot/common/ns16550.c b/arch/ppc/boot/common/ns16550.c index 9017c547a6f6..26818bbb6cff 100644 --- a/arch/ppc/boot/common/ns16550.c +++ b/arch/ppc/boot/common/ns16550.c @@ -23,7 +23,7 @@ static int shift; unsigned long serial_init(int chan, void *ignored) { - unsigned long com_port; + unsigned long com_port, base_baud; unsigned char lcr, dlm; /* We need to find out which type io we're expecting. If it's @@ -43,6 +43,8 @@ unsigned long serial_init(int chan, void *ignored) /* How far apart the registers are. */ shift = rs_table[chan].iomem_reg_shift; + /* Base baud.. */ + base_baud = rs_table[chan].baud_base; /* save the LCR */ lcr = inb(com_port + (UART_LCR << shift)); @@ -62,9 +64,9 @@ unsigned long serial_init(int chan, void *ignored) else { /* Input clock. */ outb(com_port + (UART_DLL << shift), - (BASE_BAUD / SERIAL_BAUD) & 0xFF); + (base_baud / SERIAL_BAUD) & 0xFF); outb(com_port + (UART_DLM << shift), - (BASE_BAUD / SERIAL_BAUD) >> 8); + (base_baud / SERIAL_BAUD) >> 8); /* 8 data, 1 stop, no parity */ outb(com_port + (UART_LCR << shift), 0x03); /* RTS/DTR */ |