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>
47 #define DBG(fmt...) udbg_printf(fmt)
53 unsigned long isa_io_base = 0;
54 unsigned long isa_mem_base = 0;
57 static u8 *bcsr_regs = NULL;
59 /* ************************************************************************
61 * Setup the architecture
64 static void __init mpc832x_sys_setup_arch(void)
66 struct device_node *np;
69 ppc_md.progress("mpc832x_sys_setup_arch()", 0);
72 np = of_find_node_by_name(NULL, "bcsr");
76 of_address_to_resource(np, 0, &res);
77 bcsr_regs = ioremap(res.start, res.end - res.start +1);
82 for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
84 ppc_md.pci_exclude_device = mpc83xx_exclude_device;
87 #ifdef CONFIG_QUICC_ENGINE
90 if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
94 for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;)
98 if ((np = of_find_compatible_node(NULL, "network", "ucc_geth"))
100 /* Reset the Ethernet PHY */
101 bcsr_regs[9] &= ~0x20;
103 bcsr_regs[9] |= 0x20;
107 #endif /* CONFIG_QUICC_ENGINE */
110 static struct of_device_id mpc832x_ids[] = {
112 { .compatible = "soc", },
117 static int __init mpc832x_declare_of_platform_devices(void)
119 if (!machine_is(mpc832x_mds))
122 /* Publish the QE devices */
123 of_platform_bus_probe(NULL, mpc832x_ids, NULL);
127 device_initcall(mpc832x_declare_of_platform_devices);
129 static void __init mpc832x_sys_init_IRQ(void)
131 struct device_node *np;
133 np = of_find_node_by_type(NULL, "ipic");
139 /* Initialize the default interrupt mapping priorities,
140 * in case the boot rom changed something on us.
142 ipic_set_default_priority();
145 #ifdef CONFIG_QUICC_ENGINE
146 np = of_find_node_by_type(NULL, "qeic");
152 #endif /* CONFIG_QUICC_ENGINE */
155 #if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
156 extern ulong ds1374_get_rtc_time(void);
157 extern int ds1374_set_rtc_time(ulong);
159 static int __init mpc832x_rtc_hookup(void)
163 if (!machine_is(mpc832x_mds))
166 ppc_md.get_rtc_time = ds1374_get_rtc_time;
167 ppc_md.set_rtc_time = ds1374_set_rtc_time;
170 tv.tv_sec = (ppc_md.get_rtc_time) ();
171 do_settimeofday(&tv);
176 late_initcall(mpc832x_rtc_hookup);
180 * Called very early, MMU is off, device-tree isn't unflattened
182 static int __init mpc832x_sys_probe(void)
184 unsigned long root = of_get_flat_dt_root();
186 return of_flat_dt_is_compatible(root, "MPC832xMDS");
189 define_machine(mpc832x_mds) {
190 .name = "MPC832x MDS",
191 .probe = mpc832x_sys_probe,
192 .setup_arch = mpc832x_sys_setup_arch,
193 .init_IRQ = mpc832x_sys_init_IRQ,
194 .get_irq = ipic_get_irq,
195 .restart = mpc83xx_restart,
196 .time_init = mpc83xx_time_init,
197 .calibrate_decr = generic_calibrate_decr,
198 .progress = udbg_progress,