2 * GE Fanuc SBC610 board support
4 * Author: Martyn Welch <martyn.welch@gefanuc.com>
6 * Copyright 2008 GE Fanuc Intelligent Platforms Embedded Systems, Inc.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
13 * Based on: mpc86xx_hpcn.c (MPC86xx HPCN board specific routines)
14 * Copyright 2006 Freescale Semiconductor Inc.
16 * NEC fixup adapted from arch/mips/pci/fixup-lm2e.c
19 #include <linux/stddef.h>
20 #include <linux/kernel.h>
21 #include <linux/pci.h>
22 #include <linux/kdev_t.h>
23 #include <linux/delay.h>
24 #include <linux/seq_file.h>
25 #include <linux/of_platform.h>
27 #include <asm/system.h>
29 #include <asm/machdep.h>
30 #include <asm/pci-bridge.h>
31 #include <asm/mpc86xx.h>
33 #include <mm/mmu_decl.h>
38 #include <sysdev/fsl_pci.h>
39 #include <sysdev/fsl_soc.h>
46 #define DBG (fmt...) do { printk(KERN_ERR "SBC610: " fmt); } while (0)
48 #define DBG (fmt...) do { } while (0)
51 static void __init gef_sbc610_setup_arch(void)
54 struct device_node *np;
56 for_each_compatible_node(np, "pci", "fsl,mpc8641-pcie") {
57 fsl_add_bridge(np, 1);
61 printk(KERN_INFO "GE Fanuc Intelligent Platforms SBC610 6U VPX SBC\n");
69 static void gef_sbc610_show_cpuinfo(struct seq_file *m)
71 uint memsize = total_memory;
72 uint svid = mfspr(SPRN_SVR);
74 seq_printf(m, "Vendor\t\t: GE Fanuc Intelligent Platforms\n");
76 seq_printf(m, "SVR\t\t: 0x%x\n", svid);
77 seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024));
80 static void __init gef_sbc610_nec_fixup(struct pci_dev *pdev)
84 printk(KERN_INFO "Running NEC uPD720101 Fixup\n");
86 /* Ensure ports 1, 2, 3, 4 & 5 are enabled */
87 pci_read_config_dword(pdev, 0xe0, &val);
88 pci_write_config_dword(pdev, 0xe0, (val & ~7) | 0x5);
90 /* System clock is 48-MHz Oscillator and EHCI Enabled. */
91 pci_write_config_dword(pdev, 0xe4, 1 << 5);
93 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB,
94 gef_sbc610_nec_fixup);
97 * Called very early, device-tree isn't unflattened
99 * This function is called to determine whether the BSP is compatible with the
100 * supplied device-tree, which is assumed to be the correct one for the actual
101 * board. It is expected thati, in the future, a kernel may support multiple
104 static int __init gef_sbc610_probe(void)
106 unsigned long root = of_get_flat_dt_root();
108 if (of_flat_dt_is_compatible(root, "gef,sbc610"))
114 static long __init mpc86xx_time_init(void)
118 /* Set the time base to zero */
122 temp = mfspr(SPRN_HID0);
124 mtspr(SPRN_HID0, temp);
125 asm volatile("isync");
130 static __initdata struct of_device_id of_bus_ids[] = {
131 { .compatible = "simple-bus", },
135 static int __init declare_of_platform_devices(void)
137 printk(KERN_DEBUG "Probe platform devices\n");
138 of_platform_bus_probe(NULL, of_bus_ids, NULL);
142 machine_device_initcall(gef_sbc610, declare_of_platform_devices);
144 define_machine(gef_sbc610) {
145 .name = "GE Fanuc SBC610",
146 .probe = gef_sbc610_probe,
147 .setup_arch = gef_sbc610_setup_arch,
148 .init_IRQ = mpc86xx_init_irq,
149 .show_cpuinfo = gef_sbc610_show_cpuinfo,
150 .get_irq = mpic_get_irq,
151 .restart = fsl_rstcr_restart,
152 .time_init = mpc86xx_time_init,
153 .calibrate_decr = generic_calibrate_decr,
154 .progress = udbg_progress,
156 .pcibios_fixup_bus = fsl_pcibios_fixup_bus,