ARM: serial: Remove the IXP UART driver

This driver is no longer used, remove it.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Michael Schwingen <michael@schwingen.org>
Cc: Tom Rini <trini@ti.com>

doc/driver-model/UDM-serial.txt

@@ -101,10 +101,6 @@ III) Analysis of in-tree drivers
   No support for CONFIG_SERIAL_MULTI. Simple conversion possible. This driver
   might be removed in favor of serial_mxc.c .
 
-  serial_ixp.c
-  ------------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible.
-
   serial_ks8695.c
   ---------------
   No support for CONFIG_SERIAL_MULTI. Simple conversion possible.

drivers/serial/Makefile

@@ -18,7 +18,6 @@ obj-$(CONFIG_SYS_NS16550) += ns16550.o
 obj-$(CONFIG_S5P) += serial_s5p.o
 obj-$(CONFIG_SYS_NS16550_SERIAL) += serial_ns16550.o
 obj-$(CONFIG_IMX_SERIAL) += serial_imx.o
-obj-$(CONFIG_IXP_SERIAL) += serial_ixp.o
 obj-$(CONFIG_KS8695_SERIAL) += serial_ks8695.o
 obj-$(CONFIG_MAX3100_SERIAL) += serial_max3100.o
 obj-$(CONFIG_MXC_UART) += serial_mxc.o

drivers/serial/serial.c

@@ -150,7 +150,6 @@ serial_initfunc(oc_serial_initialize);
 serial_initfunc(sandbox_serial_initialize);
 serial_initfunc(clps7111_serial_initialize);
 serial_initfunc(imx_serial_initialize);
-serial_initfunc(ixp_serial_initialize);
 serial_initfunc(ks8695_serial_initialize);
 serial_initfunc(lh7a40x_serial_initialize);
 serial_initfunc(max3100_serial_initialize);
@@ -243,7 +242,6 @@ void serial_initialize(void)
 	sandbox_serial_initialize();
 	clps7111_serial_initialize();
 	imx_serial_initialize();
-	ixp_serial_initialize();
 	ks8695_serial_initialize();
 	lh7a40x_serial_initialize();
 	max3100_serial_initialize();

drivers/serial/serial_ixp.c

-/*
- * (C) Copyright 2002
- * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Marius Groeger <mgroeger@sysgo.de>
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Alex Zuepke <azu@sysgo.de>
- *
- * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/arch/ixp425.h>
-#include <watchdog.h>
-#include <serial.h>
-#include <linux/compiler.h>
-
-/*
- *               14.7456 MHz
- * Baud Rate = --------------
- *              16 x Divisor
- */
-#define SERIAL_CLOCK 921600
-
-DECLARE_GLOBAL_DATA_PTR;
-
-static void ixp_serial_setbrg(void)
-{
-	unsigned int quot = 0;
-	int uart = CONFIG_SYS_IXP425_CONSOLE;
-
-	if ((gd->baudrate <= SERIAL_CLOCK) && (SERIAL_CLOCK % gd->baudrate == 0))
-		quot = SERIAL_CLOCK / gd->baudrate;
-	else
-		hang ();
-
-	IER(uart) = 0;					/* Disable for now */
-	FCR(uart) = 0;					/* No fifos enabled */
-
-	/* set baud rate */
-	LCR(uart) = LCR_WLS0 | LCR_WLS1 | LCR_DLAB;
-	DLL(uart) = quot & 0xff;
-	DLH(uart) = quot >> 8;
-	LCR(uart) = LCR_WLS0 | LCR_WLS1;
-#ifdef CONFIG_SERIAL_RTS_ACTIVE
-	MCR(uart) = MCR_RTS;				/* set RTS active */
-#else
-	MCR(uart) = 0;					/* set RTS inactive */
-#endif
-	IER(uart) = IER_UUE;
-}
-
-/*
- * Initialise the serial port with the given baudrate. The settings
- * are always 8 data bits, no parity, 1 stop bit, no start bits.
- *
- */
-static int ixp_serial_init(void)
-{
-	serial_setbrg ();
-
-	return (0);
-}
-
-
-/*
- * Output a single byte to the serial port.
- */
-static void ixp_serial_putc(const char c)
-{
-	/* wait for room in the tx FIFO on UART */
-	while ((LSR(CONFIG_SYS_IXP425_CONSOLE) & LSR_TEMT) == 0)
-		WATCHDOG_RESET();	/* Reset HW Watchdog, if needed */
-
-	THR(CONFIG_SYS_IXP425_CONSOLE) = c;
-
-	/* If \n, also do \r */
-	if (c == '\n')
-		serial_putc ('\r');
-}
-
-/*
- * Read a single byte from the serial port. Returns 1 on success, 0
- * otherwise. When the function is succesfull, the character read is
- * written into its argument c.
- */
-static int ixp_serial_tstc(void)
-{
-	return LSR(CONFIG_SYS_IXP425_CONSOLE) & LSR_DR;
-}
-
-/*
- * Read a single byte from the serial port. Returns 1 on success, 0
- * otherwise. When the function is succesfull, the character read is
- * written into its argument c.
- */
-static int ixp_serial_getc(void)
-{
-	while (!(LSR(CONFIG_SYS_IXP425_CONSOLE) & LSR_DR))
-		WATCHDOG_RESET();	/* Reset HW Watchdog, if needed */
-
-	return (char) RBR(CONFIG_SYS_IXP425_CONSOLE) & 0xff;
-}
-
-static struct serial_device ixp_serial_drv = {
-	.name	= "ixp_serial",
-	.start	= ixp_serial_init,
-	.stop	= NULL,
-	.setbrg	= ixp_serial_setbrg,
-	.putc	= ixp_serial_putc,
-	.puts	= default_serial_puts,
-	.getc	= ixp_serial_getc,
-	.tstc	= ixp_serial_tstc,
-};
-
-void ixp_serial_initialize(void)
-{
-	serial_register(&ixp_serial_drv);
-}
-
-__weak struct serial_device *default_serial_console(void)
-{
-	return &ixp_serial_drv;
-}