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[PARISC] Clean up asm-parisc/serial.h

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Russell King pointed out that asm/serial.h is anachronistic and we were
misusing BASE_BAUD.  So fix BASE_BAUD for PCI 16550 UARTs, move LASI_BASE_BAUD
into 8250_gsc, and fix the obsolete comment about reserving serial port slots.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
This commit is contained in:
Matthew Wilcox 2006-08-28 11:53:30 -06:00 committed by Matthew Wilcox
parent 75a4958154
commit 136ce40e9f
2 changed files with 4 additions and 16 deletions
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4
drivers/serial/8250_gsc.c
View file

@ -22,7 +22,6 @@
#include <asm/hardware.h>
#include <asm/parisc-device.h>
#include <asm/io.h>
#include <asm/serial.h> /* for LASI_BASE_BAUD */
#include "8250.h"
@ -54,7 +53,8 @@ serial_init_chip(struct parisc_device *dev)
memset(&port, 0, sizeof(port));
port.iotype = UPIO_MEM;
port.uartclk = LASI_BASE_BAUD * 16;
/* 7.272727MHz on Lasi. Assumed the same for Dino, Wax and Timi. */
port.uartclk = 7272727;
port.mapbase = address;
port.membase = ioremap_nocache(address, 16);
port.irq = dev->irq;

16
include/asm-parisc/serial.h
View file

@ -3,20 +3,8 @@
*/
/*
* This assumes you have a 7.272727 MHz clock for your UART.
* The documentation implies a 40Mhz clock, and elsewhere a 7Mhz clock
* Clarified: 7.2727MHz on LASI. Not yet clarified for DINO
* This is used for 16550-compatible UARTs
*/
#define BASE_BAUD ( 1843200 / 16 )
#define LASI_BASE_BAUD ( 7272727 / 16 )
#define BASE_BAUD LASI_BASE_BAUD
/*
* We don't use the ISA probing code, so these entries are just to reserve
* space. Some example (maximal) configurations:
* - 712 w/ additional Lasi & RJ16 ports: 4
* - J5k w/ PCI serial cards: 2 + 4 * card ~= 34
* A500 w/ PCI serial cards: 5 + 4 * card ~= 17
*/
#define SERIAL_PORT_DFNS