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 at gdcanada.com>
Signed-off-by: Tom Rini <trini at kernel.crashing.org>
Index: linux-2.6/arch/ppc/boot/common/ns16550.c
===================================================================
--- linux-2.6.orig/arch/ppc/boot/common/ns16550.c
+++ linux-2.6/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
/* 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
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 */
--
Tom Rini
http://gate.crashing.org/~trini/
