--- /dev/null
+/*
+ * Board setup routines for the Buffalo Linkstation / Kurobox Platform.
+ *
+ * Copyright (C) 2006 G. Liakhovetski (g.liakhovetski@gmx.de)
+ *
+ * Based on sandpoint.c by Mark A. Greer
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of
+ * any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/initrd.h>
+#include <linux/root_dev.h>
+#include <linux/mtd/physmap.h>
+
+#include <asm/time.h>
+#include <asm/prom.h>
+#include <asm/mpic.h>
+#include <asm/mpc10x.h>
+#include <asm/pci-bridge.h>
+
+static struct mtd_partition linkstation_physmap_partitions[] = {
+ {
+ .name = "mtd_firmimg",
+ .offset = 0x000000,
+ .size = 0x300000,
+ },
+ {
+ .name = "mtd_bootcode",
+ .offset = 0x300000,
+ .size = 0x070000,
+ },
+ {
+ .name = "mtd_status",
+ .offset = 0x370000,
+ .size = 0x010000,
+ },
+ {
+ .name = "mtd_conf",
+ .offset = 0x380000,
+ .size = 0x080000,
+ },
+ {
+ .name = "mtd_allflash",
+ .offset = 0x000000,
+ .size = 0x400000,
+ },
+ {
+ .name = "mtd_data",
+ .offset = 0x310000,
+ .size = 0x0f0000,
+ },
+};
+
+static int __init add_bridge(struct device_node *dev)
+{
+ int len;
+ struct pci_controller *hose;
+ int *bus_range;
+
+ printk("Adding PCI host bridge %s\n", dev->full_name);
+
+ bus_range = (int *) get_property(dev, "bus-range", &len);
+ if (bus_range == NULL || len < 2 * sizeof(int))
+ printk(KERN_WARNING "Can't get bus-range for %s, assume"
+ " bus 0\n", dev->full_name);
+
+ hose = pcibios_alloc_controller();
+ if (hose == NULL)
+ return -ENOMEM;
+ hose->first_busno = bus_range ? bus_range[0] : 0;
+ hose->last_busno = bus_range ? bus_range[1] : 0xff;
+ hose->arch_data = dev;
+ setup_indirect_pci(hose, 0xfec00000, 0xfee00000);
+
+ /* Interpret the "ranges" property */
+ /* This also maps the I/O region and sets isa_io/mem_base */
+ pci_process_bridge_OF_ranges(hose, dev, 1);
+
+ return 0;
+}
+
+static void __init linkstation_setup_arch(void)
+{
+ struct device_node *np;
+#ifdef CONFIG_MTD_PHYSMAP
+ physmap_set_partitions(linkstation_physmap_partitions,
+ ARRAY_SIZE(linkstation_physmap_partitions));
+#endif
+
+#ifdef CONFIG_BLK_DEV_INITRD
+ if (initrd_start)
+ ROOT_DEV = Root_RAM0;
+ else
+#endif
+#ifdef CONFIG_ROOT_NFS
+ ROOT_DEV = Root_NFS;
+#else
+ ROOT_DEV = Root_HDA1;
+#endif
+
+ /* Lookup PCI host bridges */
+ for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
+ add_bridge(np);
+
+ printk(KERN_INFO "BUFFALO Network Attached Storage Series\n");
+ printk(KERN_INFO "(C) 2002-2005 BUFFALO INC.\n");
+}
+
+/*
+ * Interrupt setup and service. Interrrupts on the linkstation come
+ * from the four PCI slots plus onboard 8241 devices: I2C, DUART.
+ */
+static void __init linkstation_init_IRQ(void)
+{
+ struct mpic *mpic;
+ struct device_node *dnp;
+ void *prop;
+ int size;
+ phys_addr_t paddr;
+
+ dnp = of_find_node_by_type(NULL, "open-pic");
+ if (dnp == NULL)
+ return;
+
+ prop = (struct device_node *)get_property(dnp, "reg", &size);
+ paddr = (phys_addr_t)of_translate_address(dnp, prop);
+
+ mpic = mpic_alloc(dnp, paddr, MPIC_PRIMARY | MPIC_WANTS_RESET, 4, 32, " EPIC ");
+ BUG_ON(mpic == NULL);
+
+ /* PCI IRQs */
+ mpic_assign_isu(mpic, 0, paddr + 0x10200);
+
+ /* I2C */
+ mpic_assign_isu(mpic, 1, paddr + 0x11000);
+
+ /* ttyS0, ttyS1 */
+ mpic_assign_isu(mpic, 2, paddr + 0x11100);
+
+ mpic_init(mpic);
+}
+
+extern void avr_uart_configure(void);
+extern void avr_uart_send(const char);
+
+static void linkstation_restart(char *cmd)
+{
+ local_irq_disable();
+
+ /* Reset system via AVR */
+ avr_uart_configure();
+ /* Send reboot command */
+ avr_uart_send('C');
+
+ for(;;) /* Spin until reset happens */
+ avr_uart_send('G'); /* "kick" */
+}
+
+static void linkstation_power_off(void)
+{
+ local_irq_disable();
+
+ /* Power down system via AVR */
+ avr_uart_configure();
+ /* send shutdown command */
+ avr_uart_send('E');
+
+ for(;;) /* Spin until power-off happens */
+ avr_uart_send('G'); /* "kick" */
+ /* NOTREACHED */
+}
+
+static void linkstation_halt(void)
+{
+ linkstation_power_off();
+ /* NOTREACHED */
+}
+
+static void linkstation_show_cpuinfo(struct seq_file *m)
+{
+ seq_printf(m, "vendor\t\t: Buffalo Technology\n");
+ seq_printf(m, "machine\t\t: Linkstation I/Kurobox(HG)\n");
+}
+
+static int __init linkstation_probe(void)
+{
+ unsigned long root;
+
+ root = of_get_flat_dt_root();
+
+ if (!of_flat_dt_is_compatible(root, "linkstation"))
+ return 0;
+ return 1;
+}
+
+define_machine(linkstation){
+ .name = "Buffalo Linkstation",
+ .probe = linkstation_probe,
+ .setup_arch = linkstation_setup_arch,
+ .init_IRQ = linkstation_init_IRQ,
+ .show_cpuinfo = linkstation_show_cpuinfo,
+ .get_irq = mpic_get_irq,
+ .restart = linkstation_restart,
+ .power_off = linkstation_power_off,
+ .halt = linkstation_halt,
+ .calibrate_decr = generic_calibrate_decr,
+};
git://git.onelab.eu / linux-2.6.git / blobdiff