ARM: omap1: remove unused board files

All board support that was marked as 'unused' earlier can
now be removed, leaving the five machines that that still
had someone using them in 2022, or that are supported in
qemu.

Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 186 deletions

diff --git a/arch/arm/mach-omap1/fpga.c b/arch/arm/mach-omap1/fpga.c
deleted file mode 100644
index 4c71a195969f..000000000000
--- a/arch/arm/mach-omap1/fpga.c
+++ /dev/null
@@ -1,186 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * linux/arch/arm/mach-omap1/fpga.c
- *
- * Interrupt handler for OMAP-1510 Innovator FPGA
- *
- * Copyright (C) 2001 RidgeRun, Inc.
- * Author: Greg Lonnon <glonnon@ridgerun.com>
- *
- * Copyright (C) 2002 MontaVista Software, Inc.
- *
- * Separated FPGA interrupts from innovator1510.c and cleaned up for 2.6
- * Copyright (C) 2004 Nokia Corporation by Tony Lindrgen <tony@atomide.com>
- */
-
-#include <linux/types.h>
-#include <linux/gpio.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/errno.h>
-#include <linux/io.h>
-
-#include <asm/irq.h>
-#include <asm/mach/irq.h>
-
-#include "hardware.h"
-#include "iomap.h"
-#include "common.h"
-#include "fpga.h"
-
-static void fpga_mask_irq(struct irq_data *d)
-{
-	unsigned int irq = d->irq - OMAP_FPGA_IRQ_BASE;
-
-	if (irq < 8)
-		__raw_writeb((__raw_readb(OMAP1510_FPGA_IMR_LO)
-			      & ~(1 << irq)), OMAP1510_FPGA_IMR_LO);
-	else if (irq < 16)
-		__raw_writeb((__raw_readb(OMAP1510_FPGA_IMR_HI)
-			      & ~(1 << (irq - 8))), OMAP1510_FPGA_IMR_HI);
-	else
-		__raw_writeb((__raw_readb(INNOVATOR_FPGA_IMR2)
-			      & ~(1 << (irq - 16))), INNOVATOR_FPGA_IMR2);
-}
-
-
-static inline u32 get_fpga_unmasked_irqs(void)
-{
-	return
-		((__raw_readb(OMAP1510_FPGA_ISR_LO) &
-		  __raw_readb(OMAP1510_FPGA_IMR_LO))) |
-		((__raw_readb(OMAP1510_FPGA_ISR_HI) &
-		  __raw_readb(OMAP1510_FPGA_IMR_HI)) << 8) |
-		((__raw_readb(INNOVATOR_FPGA_ISR2) &
-		  __raw_readb(INNOVATOR_FPGA_IMR2)) << 16);
-}
-
-
-static void fpga_ack_irq(struct irq_data *d)
-{
-	/* Don't need to explicitly ACK FPGA interrupts */
-}
-
-static void fpga_unmask_irq(struct irq_data *d)
-{
-	unsigned int irq = d->irq - OMAP_FPGA_IRQ_BASE;
-
-	if (irq < 8)
-		__raw_writeb((__raw_readb(OMAP1510_FPGA_IMR_LO) | (1 << irq)),
-		     OMAP1510_FPGA_IMR_LO);
-	else if (irq < 16)
-		__raw_writeb((__raw_readb(OMAP1510_FPGA_IMR_HI)
-			      | (1 << (irq - 8))), OMAP1510_FPGA_IMR_HI);
-	else
-		__raw_writeb((__raw_readb(INNOVATOR_FPGA_IMR2)
-			      | (1 << (irq - 16))), INNOVATOR_FPGA_IMR2);
-}
-
-static void fpga_mask_ack_irq(struct irq_data *d)
-{
-	fpga_mask_irq(d);
-	fpga_ack_irq(d);
-}
-
-static void innovator_fpga_IRQ_demux(struct irq_desc *desc)
-{
-	u32 stat;
-	int fpga_irq;
-
-	stat = get_fpga_unmasked_irqs();
-
-	if (!stat)
-		return;
-
-	for (fpga_irq = OMAP_FPGA_IRQ_BASE;
-	     (fpga_irq < OMAP_FPGA_IRQ_END) && stat;
-	     fpga_irq++, stat >>= 1) {
-		if (stat & 1) {
-			generic_handle_irq(fpga_irq);
-		}
-	}
-}
-
-static struct irq_chip omap_fpga_irq_ack = {
-	.name		= "FPGA-ack",
-	.irq_ack	= fpga_mask_ack_irq,
-	.irq_mask	= fpga_mask_irq,
-	.irq_unmask	= fpga_unmask_irq,
-};
-
-
-static struct irq_chip omap_fpga_irq = {
-	.name		= "FPGA",
-	.irq_ack	= fpga_ack_irq,
-	.irq_mask	= fpga_mask_irq,
-	.irq_unmask	= fpga_unmask_irq,
-};
-
-/*
- * All of the FPGA interrupt request inputs except for the touchscreen are
- * edge-sensitive; the touchscreen is level-sensitive.  The edge-sensitive
- * interrupts are acknowledged as a side-effect of reading the interrupt
- * status register from the FPGA.  The edge-sensitive interrupt inputs
- * cause a problem with level interrupt requests, such as Ethernet.  The
- * problem occurs when a level interrupt request is asserted while its
- * interrupt input is masked in the FPGA, which results in a missed
- * interrupt.
- *
- * In an attempt to workaround the problem with missed interrupts, the
- * mask_ack routine for all of the FPGA interrupts has been changed from
- * fpga_mask_ack_irq() to fpga_ack_irq() so that the specific FPGA interrupt
- * being serviced is left unmasked.  We can do this because the FPGA cascade
- * interrupt is run with all interrupts masked.
- *
- * Limited testing indicates that this workaround appears to be effective
- * for the smc9194 Ethernet driver used on the Innovator.  It should work
- * on other FPGA interrupts as well, but any drivers that explicitly mask
- * interrupts at the interrupt controller via disable_irq/enable_irq
- * could pose a problem.
- */
-void omap1510_fpga_init_irq(void)
-{
-	int i, res;
-
-	__raw_writeb(0, OMAP1510_FPGA_IMR_LO);
-	__raw_writeb(0, OMAP1510_FPGA_IMR_HI);
-	__raw_writeb(0, INNOVATOR_FPGA_IMR2);
-
-	for (i = OMAP_FPGA_IRQ_BASE; i < OMAP_FPGA_IRQ_END; i++) {
-
-		if (i == OMAP1510_INT_FPGA_TS) {
-			/*
-			 * The touchscreen interrupt is level-sensitive, so
-			 * we'll use the regular mask_ack routine for it.
-			 */
-			irq_set_chip(i, &omap_fpga_irq_ack);
-		}
-		else {
-			/*
-			 * All FPGA interrupts except the touchscreen are
-			 * edge-sensitive, so we won't mask them.
-			 */
-			irq_set_chip(i, &omap_fpga_irq);
-		}
-
-		irq_set_handler(i, handle_edge_irq);
-		irq_clear_status_flags(i, IRQ_NOREQUEST);
-	}
-
-	/*
-	 * The FPGA interrupt line is connected to GPIO13. Claim this pin for
-	 * the ARM.
-	 *
-	 * NOTE: For general GPIO/MPUIO access and interrupts, please see
-	 * gpio.[ch]
-	 */
-	res = gpio_request(13, "FPGA irq");
-	if (res) {
-		pr_err("%s failed to get gpio\n", __func__);
-		return;
-	}
-	gpio_direction_input(13);
-	irq_set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING);
-	irq_set_chained_handler(OMAP1510_INT_FPGA, innovator_fpga_IRQ_demux);
-}