2 * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved.
5 * MPC832xE MDS board specific routines.
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
13 #include <linux/stddef.h>
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/errno.h>
17 #include <linux/reboot.h>
18 #include <linux/pci.h>
19 #include <linux/kdev_t.h>
20 #include <linux/major.h>
21 #include <linux/console.h>
22 #include <linux/delay.h>
23 #include <linux/seq_file.h>
24 #include <linux/root_dev.h>
25 #include <linux/initrd.h>
27 #include <asm/of_device.h>
28 #include <asm/of_platform.h>
29 #include <asm/system.h>
30 #include <asm/atomic.h>
33 #include <asm/machdep.h>
35 #include <asm/bootinfo.h>
39 #include <sysdev/fsl_soc.h>
41 #include <asm/qe_ic.h>
44 #include "mpc832x_mds.h"
48 #define DBG(fmt...) udbg_printf(fmt)
54 unsigned long isa_io_base = 0;
55 unsigned long isa_mem_base = 0;
58 static u8 *bcsr_regs = NULL;
60 /* ************************************************************************
62 * Setup the architecture
65 static void __init mpc832x_sys_setup_arch(void)
67 struct device_node *np;
70 ppc_md.progress("mpc832x_sys_setup_arch()", 0);
73 np = of_find_node_by_name(NULL, "bcsr");
77 of_address_to_resource(np, 0, &res);
78 bcsr_regs = ioremap(res.start, res.end - res.start +1);
83 for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
85 ppc_md.pci_exclude_device = mpc83xx_exclude_device;
88 #ifdef CONFIG_QUICC_ENGINE
91 if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
95 for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;)
99 if ((np = of_find_compatible_node(NULL, "network", "ucc_geth"))
101 /* Reset the Ethernet PHY */
102 bcsr_regs[9] &= ~0x20;
104 bcsr_regs[9] |= 0x20;
109 #endif /* CONFIG_QUICC_ENGINE */
112 static int __init mpc832x_declare_of_platform_devices(void)
114 struct device_node *np;
116 if (!machine_is(mpc832x_mds))
119 for (np = NULL; (np = of_find_compatible_node(np, "network",
120 "ucc_geth")) != NULL;) {
122 char bus_id[BUS_ID_SIZE];
124 ucc_num = *((uint *) get_property(np, "device-id", NULL)) - 1;
125 snprintf(bus_id, BUS_ID_SIZE, "ucc_geth.%u", ucc_num);
126 of_platform_device_create(np, bus_id, NULL);
131 device_initcall(mpc832x_declare_of_platform_devices);
133 static void __init mpc832x_sys_init_IRQ(void)
136 struct device_node *np;
138 np = of_find_node_by_type(NULL, "ipic");
144 /* Initialize the default interrupt mapping priorities,
145 * in case the boot rom changed something on us.
147 ipic_set_default_priority();
150 #ifdef CONFIG_QUICC_ENGINE
151 np = of_find_node_by_type(NULL, "qeic");
157 #endif /* CONFIG_QUICC_ENGINE */
160 #if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
161 extern ulong ds1374_get_rtc_time(void);
162 extern int ds1374_set_rtc_time(ulong);
164 static int __init mpc832x_rtc_hookup(void)
168 if (!machine_is(mpc832x_mds))
171 ppc_md.get_rtc_time = ds1374_get_rtc_time;
172 ppc_md.set_rtc_time = ds1374_set_rtc_time;
175 tv.tv_sec = (ppc_md.get_rtc_time) ();
176 do_settimeofday(&tv);
181 late_initcall(mpc832x_rtc_hookup);
185 * Called very early, MMU is off, device-tree isn't unflattened
187 static int __init mpc832x_sys_probe(void)
189 unsigned long root = of_get_flat_dt_root();
191 return of_flat_dt_is_compatible(root, "MPC832xMDS");
194 define_machine(mpc832x_mds) {
195 .name = "MPC832x MDS",
196 .probe = mpc832x_sys_probe,
197 .setup_arch = mpc832x_sys_setup_arch,
198 .init_IRQ = mpc832x_sys_init_IRQ,
199 .get_irq = ipic_get_irq,
200 .restart = mpc83xx_restart,
201 .time_init = mpc83xx_time_init,
202 .calibrate_decr = generic_calibrate_decr,
203 .progress = udbg_progress,