ARM: remove Intel iop33x and iop13xx support

There are three families of IOP machines we support in Linux: iop32x
(which includes EP80219), iop33x and iop13xx (aka IOP34x aka WP8134x).

All products we support in the kernel are based on the first of these,
iop32x, the other families only ever supported the Intel reference
boards but no actual machine anyone could ever buy.

While one could clearly make them all three work in a single kernel
with some work, this takes the easy way out, removing the later two
platforms entirely, under the assumption that there are no remaining
users.

Earlier versions of OpenWRT and Debian both had support for iop32x
but not the others, and they both dropped iop32x as well in their 2015
releases.

Link: https://lore.kernel.org/r/20190809163334.489360-1-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Wolfram Sang <wsa@the-dreams.de> # for I2C parts
Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 152 deletions

diff --git a/arch/arm/mach-iop13xx/msi.c b/arch/arm/mach-iop13xx/msi.c
deleted file mode 100644
index f4d70cba1dd1..000000000000
--- a/arch/arm/mach-iop13xx/msi.c
+++ /dev/null
@@ -1,152 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * arch/arm/mach-iop13xx/msi.c
- *
- * PCI MSI support for the iop13xx processor
- *
- * Copyright (c) 2006, Intel Corporation.
- */
-#include <linux/pci.h>
-#include <linux/msi.h>
-#include <asm/mach/irq.h>
-#include <asm/irq.h>
-#include <mach/irqs.h>
-
-/* IMIPR0 CP6 R8 Page 1
- */
-static u32 read_imipr_0(void)
-{
-	u32 val;
-	asm volatile("mrc p6, 0, %0, c8, c1, 0":"=r" (val));
-	return val;
-}
-static void write_imipr_0(u32 val)
-{
-	asm volatile("mcr p6, 0, %0, c8, c1, 0"::"r" (val));
-}
-
-/* IMIPR1 CP6 R9 Page 1
- */
-static u32 read_imipr_1(void)
-{
-	u32 val;
-	asm volatile("mrc p6, 0, %0, c9, c1, 0":"=r" (val));
-	return val;
-}
-static void write_imipr_1(u32 val)
-{
-	asm volatile("mcr p6, 0, %0, c9, c1, 0"::"r" (val));
-}
-
-/* IMIPR2 CP6 R10 Page 1
- */
-static u32 read_imipr_2(void)
-{
-	u32 val;
-	asm volatile("mrc p6, 0, %0, c10, c1, 0":"=r" (val));
-	return val;
-}
-static void write_imipr_2(u32 val)
-{
-	asm volatile("mcr p6, 0, %0, c10, c1, 0"::"r" (val));
-}
-
-/* IMIPR3 CP6 R11 Page 1
- */
-static u32 read_imipr_3(void)
-{
-	u32 val;
-	asm volatile("mrc p6, 0, %0, c11, c1, 0":"=r" (val));
-	return val;
-}
-static void write_imipr_3(u32 val)
-{
-	asm volatile("mcr p6, 0, %0, c11, c1, 0"::"r" (val));
-}
-
-static u32 (*read_imipr[])(void) = {
-	read_imipr_0,
-	read_imipr_1,
-	read_imipr_2,
-	read_imipr_3,
-};
-
-static void (*write_imipr[])(u32) = {
-	write_imipr_0,
-	write_imipr_1,
-	write_imipr_2,
-	write_imipr_3,
-};
-
-static void iop13xx_msi_handler(struct irq_desc *desc)
-{
-	int i, j;
-	unsigned long status;
-
-	/* read IMIPR registers and find any active interrupts,
-	 * then call ISR for each active interrupt
-	 */
-	for (i = 0; i < ARRAY_SIZE(read_imipr); i++) {
-		status = (read_imipr[i])();
-		if (!status)
-			continue;
-
-		do {
-			j = find_first_bit(&status, 32);
-			(write_imipr[i])(1 << j); /* write back to clear bit */
-			generic_handle_irq(IRQ_IOP13XX_MSI_0 + j + (32*i));
-			status = (read_imipr[i])();
-		} while (status);
-	}
-}
-
-void __init iop13xx_msi_init(void)
-{
-	irq_set_chained_handler(IRQ_IOP13XX_INBD_MSI, iop13xx_msi_handler);
-}
-
-static void iop13xx_msi_nop(struct irq_data *d)
-{
-	return;
-}
-
-static struct irq_chip iop13xx_msi_chip = {
-	.name = "PCI-MSI",
-	.irq_ack = iop13xx_msi_nop,
-	.irq_enable = pci_msi_unmask_irq,
-	.irq_disable = pci_msi_mask_irq,
-	.irq_mask = pci_msi_mask_irq,
-	.irq_unmask = pci_msi_unmask_irq,
-};
-
-int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
-{
-	int id, irq = irq_alloc_desc_from(IRQ_IOP13XX_MSI_0, -1);
-	struct msi_msg msg;
-
-	if (irq < 0)
-		return irq;
-
-	if (irq >= NR_IOP13XX_IRQS) {
-		irq_free_desc(irq);
-		return -ENOSPC;
-	}
-
-	irq_set_msi_desc(irq, desc);
-
-	msg.address_hi = 0x0;
-	msg.address_lo = IOP13XX_MU_MIMR_PCI;
-
-	id = iop13xx_cpu_id();
-	msg.data = (id << IOP13XX_MU_MIMR_CORE_SELECT) | (irq & 0x7f);
-
-	pci_write_msi_msg(irq, &msg);
-	irq_set_chip_and_handler(irq, &iop13xx_msi_chip, handle_simple_irq);
-
-	return 0;
-}
-
-void arch_teardown_msi_irq(unsigned int irq)
-{
-	irq_free_desc(irq);
-}