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Diffstat (limited to 'arch/ppc/boot/common/ns16550.c')
-rw-r--r--arch/ppc/boot/common/ns16550.c103
1 files changed, 0 insertions, 103 deletions
diff --git a/arch/ppc/boot/common/ns16550.c b/arch/ppc/boot/common/ns16550.c
deleted file mode 100644
index fc5b7204194..00000000000
--- a/arch/ppc/boot/common/ns16550.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * COM1 NS16550 support
- */
-
-#include <linux/types.h>
-#include <linux/serial.h>
-#include <linux/serial_reg.h>
-#include <asm/serial.h>
-
-#if defined(CONFIG_XILINX_VIRTEX)
-#include <platforms/4xx/xparameters/xparameters.h>
-#endif
-#include "nonstdio.h"
-#include "serial.h"
-
-#define SERIAL_BAUD 9600
-
-extern unsigned long ISA_io;
-
-static struct serial_state rs_table[RS_TABLE_SIZE] = {
- SERIAL_PORT_DFNS /* Defined in <asm/serial.h> */
-};
-
-static int shift;
-
-unsigned long serial_init(int chan, void *ignored)
-{
- unsigned long com_port, base_baud;
- unsigned char lcr, dlm;
-
- /* We need to find out which type io we're expecting. If it's
- * 'SERIAL_IO_PORT', we get an offset from the isa_io_base.
- * If it's 'SERIAL_IO_MEM', we can the exact location. -- Tom */
- switch (rs_table[chan].io_type) {
- case SERIAL_IO_PORT:
- com_port = rs_table[chan].port;
- break;
- case SERIAL_IO_MEM:
- com_port = (unsigned long)rs_table[chan].iomem_base;
- break;
- default:
- /* We can't deal with it. */
- return -1;
- }
-
- /* 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));
- /* Access baud rate */
- outb(com_port + (UART_LCR << shift), 0x80);
- dlm = inb(com_port + (UART_DLM << shift));
- /*
- * Test if serial port is unconfigured.
- * We assume that no-one uses less than 110 baud or
- * less than 7 bits per character these days.
- * -- paulus.
- */
-
- if ((dlm <= 4) && (lcr & 2))
- /* port is configured, put the old LCR back */
- outb(com_port + (UART_LCR << shift), lcr);
- else {
- /* Input clock. */
- outb(com_port + (UART_DLL << shift),
- (base_baud / SERIAL_BAUD) & 0xFF);
- outb(com_port + (UART_DLM << shift),
- (base_baud / SERIAL_BAUD) >> 8);
- /* 8 data, 1 stop, no parity */
- outb(com_port + (UART_LCR << shift), 0x03);
- /* RTS/DTR */
- outb(com_port + (UART_MCR << shift), 0x03);
- }
- /* Clear & enable FIFOs */
- outb(com_port + (UART_FCR << shift), 0x07);
-
- return (com_port);
-}
-
-void
-serial_putc(unsigned long com_port, unsigned char c)
-{
- while ((inb(com_port + (UART_LSR << shift)) & UART_LSR_THRE) == 0)
- ;
- outb(com_port, c);
-}
-
-unsigned char
-serial_getc(unsigned long com_port)
-{
- while ((inb(com_port + (UART_LSR << shift)) & UART_LSR_DR) == 0)
- ;
- return inb(com_port);
-}
-
-int
-serial_tstc(unsigned long com_port)
-{
- return ((inb(com_port + (UART_LSR << shift)) & UART_LSR_DR) != 0);
-}