tree 3a6e724785c90a92c6a7a8159a6438d95cd912a9
parent 99cc2192132ab28c495d015ed2e95dc29e2a27ad
author Tom Rini <[EMAIL PROTECTED]> Sat, 10 Sep 2005 03:01:47 -0700
committer Linus Torvalds <[EMAIL PROTECTED]> Sat, 10 Sep 2005 03:57:29 -0700

[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 <[EMAIL PROTECTED]>
Signed-off-by: Tom Rini <[EMAIL PROTECTED]>
Cc: Russell King <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>

 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
--- 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
 
        /* 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 */
-
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