2 * Board setup routines for the Buffalo Linkstation / Kurobox Platform.
4 * Copyright (C) 2006 G. Liakhovetski (g.liakhovetski@gmx.de)
6 * Based on sandpoint.c by Mark A. Greer
8 * This file is licensed under the terms of the GNU General Public License
9 * version 2. This program is licensed "as is" without any warranty of
10 * any kind, whether express or implied.
13 #include <linux/kernel.h>
14 #include <linux/pci.h>
15 #include <linux/initrd.h>
16 #include <linux/root_dev.h>
17 #include <linux/mtd/physmap.h>
22 #include <asm/mpc10x.h>
23 #include <asm/pci-bridge.h>
25 static struct mtd_partition linkstation_physmap_partitions[] = {
27 .name = "mtd_firmimg",
32 .name = "mtd_bootcode",
47 .name = "mtd_allflash",
58 static int __init add_bridge(struct device_node *dev)
61 struct pci_controller *hose;
64 printk("Adding PCI host bridge %s\n", dev->full_name);
66 bus_range = (int *) get_property(dev, "bus-range", &len);
67 if (bus_range == NULL || len < 2 * sizeof(int))
68 printk(KERN_WARNING "Can't get bus-range for %s, assume"
69 " bus 0\n", dev->full_name);
71 hose = pcibios_alloc_controller();
74 hose->first_busno = bus_range ? bus_range[0] : 0;
75 hose->last_busno = bus_range ? bus_range[1] : 0xff;
76 hose->arch_data = dev;
77 setup_indirect_pci(hose, 0xfec00000, 0xfee00000);
79 /* Interpret the "ranges" property */
80 /* This also maps the I/O region and sets isa_io/mem_base */
81 pci_process_bridge_OF_ranges(hose, dev, 1);
86 static void __init linkstation_setup_arch(void)
88 struct device_node *np;
89 #ifdef CONFIG_MTD_PHYSMAP
90 physmap_set_partitions(linkstation_physmap_partitions,
91 ARRAY_SIZE(linkstation_physmap_partitions));
94 #ifdef CONFIG_BLK_DEV_INITRD
99 #ifdef CONFIG_ROOT_NFS
102 ROOT_DEV = Root_HDA1;
105 /* Lookup PCI host bridges */
106 for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
109 printk(KERN_INFO "BUFFALO Network Attached Storage Series\n");
110 printk(KERN_INFO "(C) 2002-2005 BUFFALO INC.\n");
114 * Interrupt setup and service. Interrrupts on the linkstation come
115 * from the four PCI slots plus onboard 8241 devices: I2C, DUART.
117 static void __init linkstation_init_IRQ(void)
120 struct device_node *dnp;
125 dnp = of_find_node_by_type(NULL, "open-pic");
129 prop = (struct device_node *)get_property(dnp, "reg", &size);
130 paddr = (phys_addr_t)of_translate_address(dnp, prop);
132 mpic = mpic_alloc(dnp, paddr, MPIC_PRIMARY | MPIC_WANTS_RESET, 4, 32, " EPIC ");
133 BUG_ON(mpic == NULL);
136 mpic_assign_isu(mpic, 0, paddr + 0x10200);
139 mpic_assign_isu(mpic, 1, paddr + 0x11000);
142 mpic_assign_isu(mpic, 2, paddr + 0x11100);
147 extern void avr_uart_configure(void);
148 extern void avr_uart_send(const char);
150 static void linkstation_restart(char *cmd)
154 /* Reset system via AVR */
155 avr_uart_configure();
156 /* Send reboot command */
159 for(;;) /* Spin until reset happens */
160 avr_uart_send('G'); /* "kick" */
163 static void linkstation_power_off(void)
167 /* Power down system via AVR */
168 avr_uart_configure();
169 /* send shutdown command */
172 for(;;) /* Spin until power-off happens */
173 avr_uart_send('G'); /* "kick" */
177 static void linkstation_halt(void)
179 linkstation_power_off();
183 static void linkstation_show_cpuinfo(struct seq_file *m)
185 seq_printf(m, "vendor\t\t: Buffalo Technology\n");
186 seq_printf(m, "machine\t\t: Linkstation I/Kurobox(HG)\n");
189 static int __init linkstation_probe(void)
193 root = of_get_flat_dt_root();
195 if (!of_flat_dt_is_compatible(root, "linkstation"))
200 define_machine(linkstation){
201 .name = "Buffalo Linkstation",
202 .probe = linkstation_probe,
203 .setup_arch = linkstation_setup_arch,
204 .init_IRQ = linkstation_init_IRQ,
205 .show_cpuinfo = linkstation_show_cpuinfo,
206 .get_irq = mpic_get_irq,
207 .restart = linkstation_restart,
208 .power_off = linkstation_power_off,
209 .halt = linkstation_halt,
210 .calibrate_decr = generic_calibrate_decr,