[ARM] 3830/1: iop3xx: board support file cleanup

Revamp the iop3xx board support: move the support code for each iop
board type into its own file, start using platform serial and platform
physmap flash devices, switch to a per-board time tick rate, and get
rid of the ARCH_EP80219 and STEPD config options by doing the relevant
checks at run time.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 148 insertions, 0 deletions

diff --git a/arch/arm/mach-iop33x/iq80331.c b/arch/arm/mach-iop33x/iq80331.c
new file mode 100644
index 00000000000..6b8475da3df
--- /dev/null
+++ b/arch/arm/mach-iop33x/iq80331.c
@@ -0,0 +1,148 @@
+/*
+ * arch/arm/mach-iop33x/iq80331.c
+ *
+ * Board support code for the Intel IQ80331 platform.
+ *
+ * Author: Dave Jiang <dave.jiang@intel.com>
+ * Copyright (C) 2003 Intel Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/serial_core.h>
+#include <linux/serial_8250.h>
+#include <linux/mtd/physmap.h>
+#include <linux/platform_device.h>
+#include <asm/hardware.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/pci.h>
+#include <asm/mach/time.h>
+#include <asm/mach-types.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+
+/*
+ * IQ80331 timer tick configuration.
+ */
+static void __init iq80331_timer_init(void)
+{
+	/* D-Step parts run at a higher internal bus frequency */
+	if (*IOP3XX_ATURID >= 0xa)
+		iop3xx_init_time(333000000);
+	else
+		iop3xx_init_time(266000000);
+}
+
+static struct sys_timer iq80331_timer = {
+	.init		= iq80331_timer_init,
+	.offset		= iop3xx_gettimeoffset,
+};
+
+
+/*
+ * IQ80331 PCI.
+ */
+static inline int __init
+iq80331_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	int irq;
+
+	if (slot == 1 && pin == 1) {
+		/* PCI-X Slot INTA */
+		irq = IRQ_IOP331_XINT1;
+	} else if (slot == 1 && pin == 2) {
+		/* PCI-X Slot INTB */
+		irq = IRQ_IOP331_XINT2;
+	} else if (slot == 1 && pin == 3) {
+		/* PCI-X Slot INTC */
+		irq = IRQ_IOP331_XINT3;
+	} else if (slot == 1 && pin == 4) {
+		/* PCI-X Slot INTD */
+		irq = IRQ_IOP331_XINT0;
+	} else if (slot == 2) {
+		/* GigE */
+		irq = IRQ_IOP331_XINT2;
+	} else {
+		printk(KERN_ERR "iq80331_pci_map_irq() called for unknown "
+			"device PCI:%d:%d:%d\n", dev->bus->number,
+			PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
+		irq = -1;
+	}
+
+	return irq;
+}
+
+static struct hw_pci iq80331_pci __initdata = {
+	.swizzle	= pci_std_swizzle,
+	.nr_controllers = 1,
+	.setup		= iop3xx_pci_setup,
+	.preinit	= iop3xx_pci_preinit,
+	.scan		= iop3xx_pci_scan_bus,
+	.map_irq	= iq80331_pci_map_irq,
+};
+
+static int __init iq80331_pci_init(void)
+{
+	if (machine_is_iq80331())
+		pci_common_init(&iq80331_pci);
+
+	return 0;
+}
+
+subsys_initcall(iq80331_pci_init);
+
+
+/*
+ * IQ80331 machine initialisation.
+ */
+static struct physmap_flash_data iq80331_flash_data = {
+	.width		= 1,
+};
+
+static struct resource iq80331_flash_resource = {
+	.start		= 0xc0000000,
+	.end		= 0xc07fffff,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device iq80331_flash_device = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &iq80331_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &iq80331_flash_resource,
+};
+
+static void __init iq80331_init_machine(void)
+{
+	platform_device_register(&iop3xx_i2c0_device);
+	platform_device_register(&iop3xx_i2c1_device);
+	platform_device_register(&iop33x_uart0_device);
+	platform_device_register(&iop33x_uart1_device);
+	platform_device_register(&iq80331_flash_device);
+}
+
+MACHINE_START(IQ80331, "Intel IQ80331")
+	/* Maintainer: Intel Corp. */
+	.phys_io	= 0xfefff000,
+	.io_pg_offst	= ((0xfffff000) >> 18) & 0xfffc,
+	.boot_params	= 0x00000100,
+	.map_io		= iop3xx_map_io,
+	.init_irq	= iop331_init_irq,
+	.timer		= &iq80331_timer,
+	.init_machine	= iq80331_init_machine,
+MACHINE_END