|
|
@@ -0,0 +1,251 @@
|
|
|
+/*
|
|
|
+ * arch/arm/mach-iop32x/n2100.c
|
|
|
+ *
|
|
|
+ * Board support code for the Thecus N2100 platform.
|
|
|
+ *
|
|
|
+ * Author: Rory Bolt <rorybolt@pacbell.net>
|
|
|
+ * 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 <buytenh@wantstofly.org> */
|
|
|
+ .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
|
Lennert Buytenhek