[ARM] 3850/1: iop3xx: add thecus n2100 support

Add support for the Thecus n2100 (80219-based.)

Signed-off-by: Lennert Buytenhek <[e-mail]>
Signed-off-by: Russell King <[e-mail]>

arch/arm/configs/iop32x_defconfig

···
 #
 CONFIG_ARCH_IQ80321=y
 CONFIG_ARCH_IQ31244=y
+CONFIG_MACH_N2100=y
 CONFIG_PLAT_IOP=y
 
 #
···
 # CONFIG_NS83820 is not set
 # CONFIG_HAMACHI is not set
 # CONFIG_YELLOWFIN is not set
-# CONFIG_R8169 is not set
+CONFIG_R8169=y
+# CONFIG_R8169_NAPI is not set
 # CONFIG_SIS190 is not set
 # CONFIG_SKGE is not set
 # CONFIG_SKY2 is not set
···
 CONFIG_USB_ARCH_HAS_HCD=y
 CONFIG_USB_ARCH_HAS_OHCI=y
 CONFIG_USB_ARCH_HAS_EHCI=y
-# CONFIG_USB is not set
+CONFIG_USB=y
+# CONFIG_USB_DEBUG is not set
+
+#
+# Miscellaneous USB options
+#
+# CONFIG_USB_DEVICEFS is not set
+# CONFIG_USB_BANDWIDTH is not set
+# CONFIG_USB_DYNAMIC_MINORS is not set
+# CONFIG_USB_OTG is not set
+
+#
+# USB Host Controller Drivers
+#
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_SPLIT_ISO=y
+CONFIG_USB_EHCI_ROOT_HUB_TT=y
+CONFIG_USB_EHCI_TT_NEWSCHED=y
+# CONFIG_USB_ISP116X_HCD is not set
+# CONFIG_USB_OHCI_HCD is not set
+CONFIG_USB_UHCI_HCD=y
+# CONFIG_USB_SL811_HCD is not set
+
+#
+# USB Device Class drivers
+#
+# CONFIG_USB_ACM is not set
+# CONFIG_USB_PRINTER is not set
 
 #
 # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# may also be needed; see USB_STORAGE Help for more information
+#
+CONFIG_USB_STORAGE=y
+# CONFIG_USB_STORAGE_DEBUG is not set
+# CONFIG_USB_STORAGE_DATAFAB is not set
+# CONFIG_USB_STORAGE_FREECOM is not set
+# CONFIG_USB_STORAGE_DPCM is not set
+# CONFIG_USB_STORAGE_USBAT is not set
+# CONFIG_USB_STORAGE_SDDR09 is not set
+# CONFIG_USB_STORAGE_SDDR55 is not set
+# CONFIG_USB_STORAGE_JUMPSHOT is not set
+# CONFIG_USB_STORAGE_ALAUDA is not set
+# CONFIG_USB_LIBUSUAL is not set
+
+#
+# USB Input Devices
+#
+# CONFIG_USB_HID is not set
+
+#
+# USB HID Boot Protocol drivers
+#
+# CONFIG_USB_KBD is not set
+# CONFIG_USB_MOUSE is not set
+# CONFIG_USB_AIPTEK is not set
+# CONFIG_USB_WACOM is not set
+# CONFIG_USB_ACECAD is not set
+# CONFIG_USB_KBTAB is not set
+# CONFIG_USB_POWERMATE is not set
+# CONFIG_USB_TOUCHSCREEN is not set
+# CONFIG_USB_YEALINK is not set
+# CONFIG_USB_XPAD is not set
+# CONFIG_USB_ATI_REMOTE is not set
+# CONFIG_USB_ATI_REMOTE2 is not set
+# CONFIG_USB_KEYSPAN_REMOTE is not set
+# CONFIG_USB_APPLETOUCH is not set
+
+#
+# USB Imaging devices
+#
+# CONFIG_USB_MDC800 is not set
+# CONFIG_USB_MICROTEK is not set
+
+#
+# USB Network Adapters
+#
+# CONFIG_USB_CATC is not set
+# CONFIG_USB_KAWETH is not set
+# CONFIG_USB_PEGASUS is not set
+# CONFIG_USB_RTL8150 is not set
+# CONFIG_USB_USBNET is not set
+CONFIG_USB_MON=y
+
+#
+# USB port drivers
+#
+
+#
+# USB Serial Converter support
+#
+# CONFIG_USB_SERIAL is not set
+
+#
+# USB Miscellaneous drivers
+#
+# CONFIG_USB_EMI62 is not set
+# CONFIG_USB_EMI26 is not set
+# CONFIG_USB_AUERSWALD is not set
+# CONFIG_USB_RIO500 is not set
+# CONFIG_USB_LEGOTOWER is not set
+# CONFIG_USB_LCD is not set
+# CONFIG_USB_LED is not set
+# CONFIG_USB_CYPRESS_CY7C63 is not set
+# CONFIG_USB_CYTHERM is not set
+# CONFIG_USB_PHIDGETKIT is not set
+# CONFIG_USB_PHIDGETSERVO is not set
+# CONFIG_USB_IDMOUSE is not set
+# CONFIG_USB_APPLEDISPLAY is not set
+# CONFIG_USB_SISUSBVGA is not set
+# CONFIG_USB_LD is not set
+
+#
+# USB DSL modem support
 #
 
 #

arch/arm/mach-iop32x/Kconfig

···
 	  evaluation kit for the Intel 80219 processor (a IOP321 variant)
 	  or the IQ31244 evaluation kit for the IOP321 processor.
 
+config MACH_N2100
+	bool "Enable support for the Thecus n2100"
+	help
+	  Say Y here if you want to run your kernel on the Thecus n2100
+	  NAS appliance.
+
 endmenu
 
 endif

arch/arm/mach-iop32x/Makefile

···
 
 obj-$(CONFIG_ARCH_IQ80321) += iq80321.o
 obj-$(CONFIG_ARCH_IQ31244) += iq31244.o
+obj-$(CONFIG_MACH_N2100) += n2100.o

arch/arm/mach-iop32x/irq.c

···
 	intctl_write(0);
 	intstr_write(0);
 	if (machine_is_iq80321() ||
-	    machine_is_iq31244())
+	    machine_is_iq31244() ||
+	    machine_is_n2100())
 		*IOP3XX_PCIIRSR = 0x0f;
 
 	for (i = 0; i < NR_IRQS; i++) {

arch/arm/mach-iop32x/n2100.c

···
+/*
+ * arch/arm/mach-iop32x/n2100.c
+ *
+ * Board support code for the Thecus N2100 platform.
+ *
+ * Author: Rory Bolt <[e-mail]>
+ * Copyright (C) 2002 Rory Bolt
+ * Copyright 2003 (c) MontaVista, Software, Inc.
+ * Copyright (C) 2004 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/delay.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/pm.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 <linux/reboot.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>
+
+/*
+ * N2100 timer tick configuration.
+ */
+static void __init n2100_timer_init(void)
+{
+	/* 33.000 MHz crystal.  */
+	iop3xx_init_time(198000000);
+}
+
+static struct sys_timer n2100_timer = {
+	.init		= n2100_timer_init,
+	.offset		= iop3xx_gettimeoffset,
+};
+
+
+/*
+ * N2100 I/O.
+ */
+static struct map_desc n2100_io_desc[] __initdata = {
+	{	/* on-board devices */
+		.virtual	= N2100_UART,
+		.pfn		= __phys_to_pfn(N2100_UART),
+		.length		= 0x00100000,
+		.type		= MT_DEVICE
+	},
+};
+
+void __init n2100_map_io(void)
+{
+	iop3xx_map_io();
+	iotable_init(n2100_io_desc, ARRAY_SIZE(n2100_io_desc));
+}
+
+
+/*
+ * N2100 PCI.
+ */
+static inline int __init
+n2100_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	int irq;
+
+	if (PCI_SLOT(dev->devfn) == 1) {
+		/* RTL8110SB #1 */
+		irq = IRQ_IOP32X_XINT0;
+	} else if (PCI_SLOT(dev->devfn) == 2) {
+		/* RTL8110SB #2 */
+		irq = IRQ_IOP32X_XINT1;
+	} else if (PCI_SLOT(dev->devfn) == 3) {
+		/* Sil3512 */
+		irq = IRQ_IOP32X_XINT2;
+	} else if (PCI_SLOT(dev->devfn) == 4 && pin == 1) {
+		/* VT6212 INTA */
+		irq = IRQ_IOP32X_XINT1;
+	} else if (PCI_SLOT(dev->devfn) == 4 && pin == 2) {
+		/* VT6212 INTB */
+		irq = IRQ_IOP32X_XINT0;
+	} else if (PCI_SLOT(dev->devfn) == 4 && pin == 3) {
+		/* VT6212 INTC */
+		irq = IRQ_IOP32X_XINT2;
+	} else if (PCI_SLOT(dev->devfn) == 5) {
+		/* Mini-PCI slot */
+		irq = IRQ_IOP32X_XINT3;
+	} else {
+		printk(KERN_ERR "n2100_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 n2100_pci __initdata = {
+	.swizzle	= pci_std_swizzle,
+	.nr_controllers = 1,
+	.setup		= iop3xx_pci_setup,
+	.preinit	= iop3xx_pci_preinit,
+	.scan		= iop3xx_pci_scan_bus,
+	.map_irq	= n2100_pci_map_irq,
+};
+
+static int __init n2100_pci_init(void)
+{
+	if (machine_is_n2100())
+		pci_common_init(&n2100_pci);
+
+	return 0;
+}
+
+subsys_initcall(n2100_pci_init);
+
+
+/*
+ * N2100 machine initialisation.
+ */
+static struct physmap_flash_data n2100_flash_data = {
+	.width		= 2,
+};
+
+static struct resource n2100_flash_resource = {
+	.start		= 0xf0000000,
+	.end		= 0xf0ffffff,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device n2100_flash_device = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &n2100_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &n2100_flash_resource,
+};
+
+
+static struct plat_serial8250_port n2100_serial_port[] = {
+	{
+		.mapbase	= N2100_UART,
+		.membase	= (char *)N2100_UART,
+		.irq		= 0,
+		.flags		= UPF_SKIP_TEST,
+		.iotype		= UPIO_MEM,
+		.regshift	= 0,
+		.uartclk	= 1843200,
+	},
+	{ },
+};
+
+static struct resource n2100_uart_resource = {
+	.start		= N2100_UART,
+	.end		= N2100_UART + 7,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device n2100_serial_device = {
+	.name		= "serial8250",
+	.id		= PLAT8250_DEV_PLATFORM,
+	.dev		= {
+		.platform_data		= n2100_serial_port,
+	},
+	.num_resources	= 1,
+	.resource	= &n2100_uart_resource,
+};
+
+
+/*
+ * Pull PCA9532 GPIO #8 low to power off the machine.
+ */
+static void n2100_power_off(void)
+{
+	local_irq_disable();
+
+	/* Start condition, I2C address of PCA9532, write transaction.  */
+	*IOP3XX_IDBR0 = 0xc0;
+	*IOP3XX_ICR0 = 0xe9;
+	mdelay(1);
+
+	/* Write address 0x08.  */
+	*IOP3XX_IDBR0 = 0x08;
+	*IOP3XX_ICR0 = 0xe8;
+	mdelay(1);
+
+	/* Write data 0x01, stop condition.  */
+	*IOP3XX_IDBR0 = 0x01;
+	*IOP3XX_ICR0 = 0xea;
+
+	while (1)
+		;
+}
+
+
+static struct timer_list power_button_poll_timer;
+
+static void power_button_poll(unsigned long dummy)
+{
+	if (gpio_line_get(N2100_POWER_BUTTON) == 0) {
+		ctrl_alt_del();
+		return;
+	}
+
+	power_button_poll_timer.expires = jiffies + (HZ / 10);
+	add_timer(&power_button_poll_timer);
+}
+
+
+static void __init n2100_init_machine(void)
+{
+	platform_device_register(&iop3xx_i2c0_device);
+	platform_device_register(&n2100_flash_device);
+	platform_device_register(&n2100_serial_device);
+
+	pm_power_off = n2100_power_off;
+
+	init_timer(&power_button_poll_timer);
+	power_button_poll_timer.function = power_button_poll;
+	power_button_poll_timer.expires = jiffies + (HZ / 10);
+	add_timer(&power_button_poll_timer);
+}
+
+MACHINE_START(N2100, "Thecus N2100")
+	/* Maintainer: Lennert Buytenhek <[e-mail]> */
+	.phys_io	= N2100_UART,
+	.io_pg_offst	= ((N2100_UART) >> 18) & 0xfffc,
+	.boot_params	= 0xa0000100,
+	.map_io		= n2100_map_io,
+	.init_irq	= iop32x_init_irq,
+	.timer		= &n2100_timer,
+	.init_machine	= n2100_init_machine,
+MACHINE_END

include/asm-arm/arch-iop32x/hardware.h

···
  */
 #include "iq80321.h"
 #include "iq31244.h"
+#include "n2100.h"
 
 
 #endif

include/asm-arm/arch-iop32x/n2100.h

···
+/*
+ * include/asm/arch-iop32x/n2100.h
+ *
+ * Thecus N2100 board registers
+ */
+
+#ifndef __N2100_H
+#define __N2100_H
+
+#define N2100_UART		0xfe800000	/* UART */
+
+#define N2100_COPY_BUTTON	IOP3XX_GPIO_LINE(0)
+#define N2100_PCA9532_RESET	IOP3XX_GPIO_LINE(2)
+#define N2100_RESET_BUTTON	IOP3XX_GPIO_LINE(3)
+#define N2100_HARDWARE_RESET	IOP3XX_GPIO_LINE(4)
+#define N2100_POWER_BUTTON	IOP3XX_GPIO_LINE(5)
+
+
+#endif

include/asm-arm/arch-iop32x/system.h

···
  * published by the Free Software Foundation.
  */
 
+#include <asm/mach-types.h>
+
 static inline void arch_idle(void)
 {
 	cpu_do_idle();
···
 
 static inline void arch_reset(char mode)
 {
+	local_irq_disable();
+
+	if (machine_is_n2100()) {
+		gpio_line_set(N2100_HARDWARE_RESET, GPIO_LOW);
+		gpio_line_config(N2100_HARDWARE_RESET, GPIO_OUT);
+		while (1)
+			;
+	}
+
 	*IOP3XX_PCSR = 0x30;
 
 	/* Jump into ROM at address 0 */