ARM: footbridge: remove CATS

Nobody seems to have a CATS machine any more, so remove
it now, leaving only NetWinder and EBSA285.

Cc: Russell King <[e-mail]>
Acked-by: Linus Walleij <[e-mail]>
Signed-off-by: Arnd Bergmann <[e-mail]>

arch/arm/kernel/head.S

···
 	ldr	r7, [r10, #PROCINFO_IO_MMUFLAGS] @ io_mmuflags
 #endif
 
-#if defined(CONFIG_ARCH_NETWINDER) || defined(CONFIG_ARCH_CATS)
+#if defined(CONFIG_ARCH_NETWINDER)
 	/*
 	 * If we're using the NetWinder or CATS, we also need to map
 	 * in the 16550-type serial port for the debug messages

arch/arm/mach-footbridge/Kconfig

···
 
 if ARCH_FOOTBRIDGE
 
-config ARCH_CATS
-	bool "CATS"
-	depends on UNUSED_BOARD_FILES
-	select CLKEVT_I8253
-	select CLKSRC_I8253
-	select ISA
-	select FORCE_PCI
-	help
-	  Say Y here if you intend to run this kernel on the CATS.
-
-	  Saying N will reduce the size of the Footbridge kernel.
-
 config ARCH_EBSA285_HOST
 	bool "EBSA285 (host mode)"
 	select ARCH_EBSA285

arch/arm/mach-footbridge/Makefile

···
 obj-y			:= common.o isa-irq.o isa.o isa-rtc.o dma-isa.o
 
 pci-y			+= dc21285.o
-pci-$(CONFIG_ARCH_CATS) += cats-pci.o
 pci-$(CONFIG_ARCH_EBSA285) += ebsa285-pci.o
 pci-$(CONFIG_ARCH_NETWINDER) += netwinder-pci.o
 
-obj-$(CONFIG_ARCH_CATS) += cats-hw.o isa-timer.o
 obj-$(CONFIG_ARCH_EBSA285) += ebsa285.o dc21285-timer.o
 obj-$(CONFIG_ARCH_NETWINDER) += netwinder-hw.o isa-timer.o
 

arch/arm/mach-footbridge/cats-hw.c

···
-// SPDX-License-Identifier: GPL-2.0
-/*
- * linux/arch/arm/mach-footbridge/cats-hw.c
- *
- * CATS machine fixup
- *
- * Copyright (C) 1998, 1999 Russell King, Phil Blundell
- */
-#include <linux/ioport.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/screen_info.h>
-#include <linux/io.h>
-#include <linux/spinlock.h>
-
-#include <asm/hardware/dec21285.h>
-#include <asm/mach-types.h>
-#include <asm/setup.h>
-
-#include <asm/mach/arch.h>
-
-#include "common.h"
-
-#define CFG_PORT	0x370
-#define INDEX_PORT	(CFG_PORT)
-#define DATA_PORT	(CFG_PORT + 1)
-
-static int __init cats_hw_init(void)
-{
-	if (machine_is_cats()) {
-		/* Set Aladdin to CONFIGURE mode */
-		outb(0x51, CFG_PORT);
-		outb(0x23, CFG_PORT);
-
-		/* Select logical device 3 */
-		outb(0x07, INDEX_PORT);
-		outb(0x03, DATA_PORT);
-
-		/* Set parallel port to DMA channel 3, ECP+EPP1.9, 
-		   enable EPP timeout */
-		outb(0x74, INDEX_PORT);
-		outb(0x03, DATA_PORT);
-	
-		outb(0xf0, INDEX_PORT);
-		outb(0x0f, DATA_PORT);
-
-		outb(0xf1, INDEX_PORT);
-		outb(0x07, DATA_PORT);
-
-		/* Select logical device 4 */
-		outb(0x07, INDEX_PORT);
-		outb(0x04, DATA_PORT);
-
-		/* UART1 high speed mode */
-		outb(0xf0, INDEX_PORT);
-		outb(0x02, DATA_PORT);
-
-		/* Select logical device 5 */
-		outb(0x07, INDEX_PORT);
-		outb(0x05, DATA_PORT);
-
-		/* UART2 high speed mode */
-		outb(0xf0, INDEX_PORT);
-		outb(0x02, DATA_PORT);
-
-		/* Set Aladdin to RUN mode */
-		outb(0xbb, CFG_PORT);
-	}
-
-	return 0;
-}
-
-__initcall(cats_hw_init);
-
-/*
- * CATS uses soft-reboot by default, since
- * hard reboots fail on early boards.
- */
-static void __init
-fixup_cats(struct tag *tags, char **cmdline)
-{
-#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_DUMMY_CONSOLE)
-	screen_info.orig_video_lines  = 25;
-	screen_info.orig_video_points = 16;
-	screen_info.orig_y = 24;
-#endif
-}
-
-MACHINE_START(CATS, "Chalice-CATS")
-	/* Maintainer: Philip Blundell */
-	.atag_offset	= 0x100,
-	.reboot_mode	= REBOOT_SOFT,
-	.fixup		= fixup_cats,
-	.map_io		= footbridge_map_io,
-	.init_irq	= footbridge_init_irq,
-	.init_time	= isa_timer_init,
-	.restart	= footbridge_restart,
-MACHINE_END

arch/arm/mach-footbridge/cats-pci.c

···
-// SPDX-License-Identifier: GPL-2.0
-/*
- * linux/arch/arm/mach-footbridge/cats-pci.c
- *
- * PCI bios-type initialisation for PCI machines
- *
- * Bits taken from various places.
- */
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-
-#include <asm/irq.h>
-#include <asm/mach/pci.h>
-#include <asm/mach-types.h>
-
-/* cats host-specific stuff */
-static int irqmap_cats[] = { IRQ_PCI, IRQ_IN0, IRQ_IN1, IRQ_IN3 };
-
-static u8 cats_no_swizzle(struct pci_dev *dev, u8 *pin)
-{
-	return 0;
-}
-
-static int cats_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
-	if (dev->irq >= 255)
-		return -1;	/* not a valid interrupt. */
-
-	if (dev->irq >= 128)
-		return dev->irq & 0x1f;
-
-	if (dev->irq >= 1 && dev->irq <= 4)
-		return irqmap_cats[dev->irq - 1];
-
-	if (dev->irq != 0)
-		printk("PCI: device %02x:%02x has unknown irq line %x\n",
-		       dev->bus->number, dev->devfn, dev->irq);
-
-	return -1;
-}
-
-/*
- * why not the standard PCI swizzle?  does this prevent 4-port tulip
- * cards being used (ie, pci-pci bridge based cards)?
- */
-static struct hw_pci cats_pci __initdata = {
-	.swizzle		= cats_no_swizzle,
-	.map_irq		= cats_map_irq,
-	.nr_controllers		= 1,
-	.ops			= &dc21285_ops,
-	.setup			= dc21285_setup,
-	.preinit		= dc21285_preinit,
-	.postinit		= dc21285_postinit,
-};
-
-static int __init cats_pci_init(void)
-{
-	if (machine_is_cats())
-		pci_common_init(&cats_pci);
-	return 0;
-}
-
-subsys_initcall(cats_pci_init);

arch/arm/mach-footbridge/common.c

···
 		 */
 		isa_init_irq(IRQ_PCI);
 
-	if (machine_is_cats())
-		isa_init_irq(IRQ_IN2);
-
 	if (machine_is_netwinder())
 		isa_init_irq(IRQ_IN3);
 }

drivers/watchdog/wdt285.c

···
 	pr_info("Footbridge Watchdog Timer: 0.01, timer margin: %d sec\n",
 		soft_margin);
 
-	if (machine_is_cats())
-		pr_warn("Warning: Watchdog reset may not work on this machine\n");
 	return 0;
 }