sh: Remove stale microdev board

This board was an early prototype platform for early SH4 CPUs and related
to the already removed SH5 cayman platform.

The microdev board itself has been kept in the tree for this long despite
being in a bad shape even 20 years ago when it got merged, with no working
PCI support and ugly workarounds for its I/O port implementation that
try to emulate PC style peripheral access despite being quite different
in reality.

As far as I can tell, the ethernet, display, USB and PCI devices on it
already broke at some point (afbb9d8d5266b, 46bc85872040a), so I think
we can just removeit entirely.

Link: https://lore.kernel.org/lkml/09094baf-dadf-4bce-9f63-f2a1f255f9a8@app.fastmail.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: https://lore.kernel.org/r/20230914155523.3839811-1-arnd@kernel.org
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>

1 files changed, 0 insertions, 150 deletions

diff --git a/arch/sh/boards/mach-microdev/irq.c b/arch/sh/boards/mach-microdev/irq.c
deleted file mode 100644
index dc27492c83d7..000000000000
--- a/arch/sh/boards/mach-microdev/irq.c
+++ /dev/null
@@ -1,150 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * arch/sh/boards/superh/microdev/irq.c
- *
- * Copyright (C) 2003 Sean McGoogan (Sean.McGoogan@superh.com)
- *
- * SuperH SH4-202 MicroDev board support.
- */
-
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <asm/io.h>
-#include <mach/microdev.h>
-
-#define NUM_EXTERNAL_IRQS 16	/* IRL0 .. IRL15 */
-
-static const struct {
-	unsigned char fpgaIrq;
-	unsigned char mapped;
-	const char *name;
-} fpgaIrqTable[NUM_EXTERNAL_IRQS] = {
-	{ 0,				0,	"unused"   },		/* IRQ #0	IRL=15	0x200  */
-	{ MICRODEV_FPGA_IRQ_KEYBOARD,	1,	"keyboard" },		/* IRQ #1	IRL=14	0x220  */
-	{ MICRODEV_FPGA_IRQ_SERIAL1,	1,	"Serial #1"},		/* IRQ #2	IRL=13	0x240  */
-	{ MICRODEV_FPGA_IRQ_ETHERNET,	1,	"Ethernet" },		/* IRQ #3	IRL=12	0x260  */
-	{ MICRODEV_FPGA_IRQ_SERIAL2,	0,	"Serial #2"},		/* IRQ #4	IRL=11	0x280  */
-	{ 0,				0,	"unused"   },		/* IRQ #5	IRL=10	0x2a0  */
-	{ 0,				0,	"unused"   },		/* IRQ #6	IRL=9	0x2c0  */
-	{ MICRODEV_FPGA_IRQ_USB_HC,	1,	"USB"	   },		/* IRQ #7	IRL=8	0x2e0  */
-	{ MICRODEV_IRQ_PCI_INTA,	1,	"PCI INTA" },		/* IRQ #8	IRL=7	0x300  */
-	{ MICRODEV_IRQ_PCI_INTB,	1,	"PCI INTB" },		/* IRQ #9	IRL=6	0x320  */
-	{ MICRODEV_IRQ_PCI_INTC,	1,	"PCI INTC" },		/* IRQ #10	IRL=5	0x340  */
-	{ MICRODEV_IRQ_PCI_INTD,	1,	"PCI INTD" },		/* IRQ #11	IRL=4	0x360  */
-	{ MICRODEV_FPGA_IRQ_MOUSE,	1,	"mouse"    },		/* IRQ #12	IRL=3	0x380  */
-	{ MICRODEV_FPGA_IRQ_IDE2,	1,	"IDE #2"   },		/* IRQ #13	IRL=2	0x3a0  */
-	{ MICRODEV_FPGA_IRQ_IDE1,	1,	"IDE #1"   },		/* IRQ #14	IRL=1	0x3c0  */
-	{ 0,				0,	"unused"   },		/* IRQ #15	IRL=0	0x3e0  */
-};
-
-#if (MICRODEV_LINUX_IRQ_KEYBOARD != 1)
-#  error Inconsistancy in defining the IRQ# for Keyboard!
-#endif
-
-#if (MICRODEV_LINUX_IRQ_ETHERNET != 3)
-#  error Inconsistancy in defining the IRQ# for Ethernet!
-#endif
-
-#if (MICRODEV_LINUX_IRQ_USB_HC != 7)
-#  error Inconsistancy in defining the IRQ# for USB!
-#endif
-
-#if (MICRODEV_LINUX_IRQ_MOUSE != 12)
-#  error Inconsistancy in defining the IRQ# for PS/2 Mouse!
-#endif
-
-#if (MICRODEV_LINUX_IRQ_IDE2 != 13)
-#  error Inconsistancy in defining the IRQ# for secondary IDE!
-#endif
-
-#if (MICRODEV_LINUX_IRQ_IDE1 != 14)
-#  error Inconsistancy in defining the IRQ# for primary IDE!
-#endif
-
-static void disable_microdev_irq(struct irq_data *data)
-{
-	unsigned int irq = data->irq;
-	unsigned int fpgaIrq;
-
-	if (irq >= NUM_EXTERNAL_IRQS)
-		return;
-	if (!fpgaIrqTable[irq].mapped)
-		return;
-
-	fpgaIrq = fpgaIrqTable[irq].fpgaIrq;
-
-	/* disable interrupts on the FPGA INTC register */
-	__raw_writel(MICRODEV_FPGA_INTC_MASK(fpgaIrq), MICRODEV_FPGA_INTDSB_REG);
-}
-
-static void enable_microdev_irq(struct irq_data *data)
-{
-	unsigned int irq = data->irq;
-	unsigned long priorityReg, priorities, pri;
-	unsigned int fpgaIrq;
-
-	if (unlikely(irq >= NUM_EXTERNAL_IRQS))
-		return;
-	if (unlikely(!fpgaIrqTable[irq].mapped))
-		return;
-
-	pri = 15 - irq;
-
-	fpgaIrq = fpgaIrqTable[irq].fpgaIrq;
-	priorityReg = MICRODEV_FPGA_INTPRI_REG(fpgaIrq);
-
-	/* set priority for the interrupt */
-	priorities = __raw_readl(priorityReg);
-	priorities &= ~MICRODEV_FPGA_INTPRI_MASK(fpgaIrq);
-	priorities |= MICRODEV_FPGA_INTPRI_LEVEL(fpgaIrq, pri);
-	__raw_writel(priorities, priorityReg);
-
-	/* enable interrupts on the FPGA INTC register */
-	__raw_writel(MICRODEV_FPGA_INTC_MASK(fpgaIrq), MICRODEV_FPGA_INTENB_REG);
-}
-
-static struct irq_chip microdev_irq_type = {
-	.name = "MicroDev-IRQ",
-	.irq_unmask = enable_microdev_irq,
-	.irq_mask = disable_microdev_irq,
-};
-
-/* This function sets the desired irq handler to be a MicroDev type */
-static void __init make_microdev_irq(unsigned int irq)
-{
-	disable_irq_nosync(irq);
-	irq_set_chip_and_handler(irq, &microdev_irq_type, handle_level_irq);
-	disable_microdev_irq(irq_get_irq_data(irq));
-}
-
-extern void __init init_microdev_irq(void)
-{
-	int i;
-
-	/* disable interrupts on the FPGA INTC register */
-	__raw_writel(~0ul, MICRODEV_FPGA_INTDSB_REG);
-
-	for (i = 0; i < NUM_EXTERNAL_IRQS; i++)
-		make_microdev_irq(i);
-}
-
-extern void microdev_print_fpga_intc_status(void)
-{
-	volatile unsigned int * const intenb = (unsigned int*)MICRODEV_FPGA_INTENB_REG;
-	volatile unsigned int * const intdsb = (unsigned int*)MICRODEV_FPGA_INTDSB_REG;
-	volatile unsigned int * const intpria = (unsigned int*)MICRODEV_FPGA_INTPRI_REG(0);
-	volatile unsigned int * const intprib = (unsigned int*)MICRODEV_FPGA_INTPRI_REG(8);
-	volatile unsigned int * const intpric = (unsigned int*)MICRODEV_FPGA_INTPRI_REG(16);
-	volatile unsigned int * const intprid = (unsigned int*)MICRODEV_FPGA_INTPRI_REG(24);
-	volatile unsigned int * const intsrc = (unsigned int*)MICRODEV_FPGA_INTSRC_REG;
-	volatile unsigned int * const intreq = (unsigned int*)MICRODEV_FPGA_INTREQ_REG;
-
-	printk("-------------------------- microdev_print_fpga_intc_status() ------------------\n");
-	printk("FPGA_INTENB = 0x%08x\n", *intenb);
-	printk("FPGA_INTDSB = 0x%08x\n", *intdsb);
-	printk("FPGA_INTSRC = 0x%08x\n", *intsrc);
-	printk("FPGA_INTREQ = 0x%08x\n", *intreq);
-	printk("FPGA_INTPRI[3..0] = %08x:%08x:%08x:%08x\n", *intprid, *intpric, *intprib, *intpria);
-	printk("-------------------------------------------------------------------------------\n");
-}