2 * MPC86xx HPCN board specific routines
4 * Recode: ZHANG WEI <wei.zhang@freescale.com>
5 * Initial author: Xianghua Xiao <x.xiao@freescale.com>
7 * Copyright 2006 Freescale Semiconductor Inc.
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
15 #include <linux/stddef.h>
16 #include <linux/kernel.h>
17 #include <linux/pci.h>
18 #include <linux/kdev_t.h>
19 #include <linux/delay.h>
20 #include <linux/seq_file.h>
21 #include <linux/of_platform.h>
23 #include <asm/system.h>
25 #include <asm/machdep.h>
26 #include <asm/pci-bridge.h>
27 #include <asm/mpc86xx.h>
29 #include <mm/mmu_decl.h>
34 #include <sysdev/fsl_pci.h>
35 #include <sysdev/fsl_soc.h>
42 #define DBG(fmt...) do { printk(KERN_ERR fmt); } while(0)
44 #define DBG(fmt...) do { } while(0)
48 extern int uli_exclude_device(struct pci_controller
*hose
,
49 u_char bus
, u_char devfn
);
51 static int mpc86xx_exclude_device(struct pci_controller
*hose
,
52 u_char bus
, u_char devfn
)
54 struct device_node
* node
;
58 of_address_to_resource(node
, 0, &rsrc
);
60 if ((rsrc
.start
& 0xfffff) == 0x8000) {
61 return uli_exclude_device(hose
, bus
, devfn
);
64 return PCIBIOS_SUCCESSFUL
;
66 #endif /* CONFIG_PCI */
70 mpc86xx_hpcn_setup_arch(void)
73 struct device_node
*np
;
77 ppc_md
.progress("mpc86xx_hpcn_setup_arch()", 0);
80 for_each_compatible_node(np
, "pci", "fsl,mpc8641-pcie") {
82 of_address_to_resource(np
, 0, &rsrc
);
83 if ((rsrc
.start
& 0xfffff) == 0x8000)
84 fsl_add_bridge(np
, 1);
86 fsl_add_bridge(np
, 0);
89 ppc_md
.pci_exclude_device
= mpc86xx_exclude_device
;
93 printk("MPC86xx HPCN board from Freescale Semiconductor\n");
102 mpc86xx_hpcn_show_cpuinfo(struct seq_file
*m
)
104 struct device_node
*root
;
105 uint memsize
= total_memory
;
106 const char *model
= "";
107 uint svid
= mfspr(SPRN_SVR
);
109 seq_printf(m
, "Vendor\t\t: Freescale Semiconductor\n");
111 root
= of_find_node_by_path("/");
113 model
= of_get_property(root
, "model", NULL
);
114 seq_printf(m
, "Machine\t\t: %s\n", model
);
117 seq_printf(m
, "SVR\t\t: 0x%x\n", svid
);
118 seq_printf(m
, "Memory\t\t: %d MB\n", memsize
/ (1024 * 1024));
123 * Called very early, device-tree isn't unflattened
125 static int __init
mpc86xx_hpcn_probe(void)
127 unsigned long root
= of_get_flat_dt_root();
129 if (of_flat_dt_is_compatible(root
, "fsl,mpc8641hpcn"))
130 return 1; /* Looks good */
132 /* Be nice and don't give silent boot death. Delete this in 2.6.27 */
133 if (of_flat_dt_is_compatible(root
, "mpc86xx")) {
134 pr_warning("WARNING: your dts/dtb is old. You must update before the next kernel release\n");
142 mpc86xx_time_init(void)
146 /* Set the time base to zero */
150 temp
= mfspr(SPRN_HID0
);
152 mtspr(SPRN_HID0
, temp
);
153 asm volatile("isync");
158 static __initdata
struct of_device_id of_bus_ids
[] = {
159 { .compatible
= "simple-bus", },
160 { .compatible
= "fsl,rapidio-delta", },
164 static int __init
declare_of_platform_devices(void)
166 of_platform_bus_probe(NULL
, of_bus_ids
, NULL
);
170 machine_device_initcall(mpc86xx_hpcn
, declare_of_platform_devices
);
172 define_machine(mpc86xx_hpcn
) {
173 .name
= "MPC86xx HPCN",
174 .probe
= mpc86xx_hpcn_probe
,
175 .setup_arch
= mpc86xx_hpcn_setup_arch
,
176 .init_IRQ
= mpc86xx_init_irq
,
177 .show_cpuinfo
= mpc86xx_hpcn_show_cpuinfo
,
178 .get_irq
= mpic_get_irq
,
179 .restart
= fsl_rstcr_restart
,
180 .time_init
= mpc86xx_time_init
,
181 .calibrate_decr
= generic_calibrate_decr
,
182 .progress
= udbg_progress
,
184 .pcibios_fixup_bus
= fsl_pcibios_fixup_bus
,