2 * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved.
4 * Author: Li Yang <LeoLi@freescale.com>
5 * Yin Olivia <Hong-hua.Yin@freescale.com>
8 * MPC8360E MDS PB board specific routines.
11 * Jun 21, 2006 Initial version
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU General Public License as published by the
15 * Free Software Foundation; either version 2 of the License, or (at your
16 * option) any later version.
19 #include <linux/stddef.h>
20 #include <linux/kernel.h>
21 #include <linux/init.h>
22 #include <linux/errno.h>
23 #include <linux/reboot.h>
24 #include <linux/pci.h>
25 #include <linux/kdev_t.h>
26 #include <linux/major.h>
27 #include <linux/console.h>
28 #include <linux/delay.h>
29 #include <linux/seq_file.h>
30 #include <linux/root_dev.h>
31 #include <linux/initrd.h>
33 #include <asm/of_device.h>
34 #include <asm/of_platform.h>
35 #include <asm/system.h>
36 #include <asm/atomic.h>
39 #include <asm/machdep.h>
41 #include <asm/bootinfo.h>
45 #include <sysdev/fsl_soc.h>
47 #include <asm/qe_ic.h>
53 #define DBG(fmt...) udbg_printf(fmt)
59 unsigned long isa_io_base = 0;
60 unsigned long isa_mem_base = 0;
63 static u8 *bcsr_regs = NULL;
70 /* ************************************************************************
72 * Setup the architecture
75 static void __init mpc8360_sys_setup_arch(void)
77 struct device_node *np;
80 ppc_md.progress("mpc8360_sys_setup_arch()", 0);
82 np = of_find_node_by_type(NULL, "cpu");
84 const unsigned int *fp =
85 get_property(np, "clock-frequency", NULL);
87 loops_per_jiffy = *fp / HZ;
89 loops_per_jiffy = 50000000 / HZ;
94 np = of_find_node_by_name(NULL, "bcsr");
98 of_address_to_resource(np, 0, &res);
99 bcsr_regs = ioremap(res.start, res.end - res.start +1);
104 for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
106 ppc_md.pci_exclude_device = mpc83xx_exclude_device;
109 #ifdef CONFIG_QUICC_ENGINE
112 if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
116 for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;)
117 par_io_of_config(np);
120 if ((np = of_find_compatible_node(NULL, "network", "ucc_geth"))
122 /* Reset the Ethernet PHY */
123 bcsr_regs[9] &= ~0x20;
125 bcsr_regs[9] |= 0x20;
130 #endif /* CONFIG_QUICC_ENGINE */
132 #ifdef CONFIG_BLK_DEV_INITRD
134 ROOT_DEV = Root_RAM0;
137 #ifdef CONFIG_ROOT_NFS
140 ROOT_DEV = Root_HDA1;
144 static int __init mpc8360_declare_of_platform_devices(void)
146 struct device_node *np;
148 for (np = NULL; (np = of_find_compatible_node(np, "network",
149 "ucc_geth")) != NULL;) {
151 char bus_id[BUS_ID_SIZE];
153 ucc_num = *((uint *) get_property(np, "device-id", NULL)) - 1;
154 snprintf(bus_id, BUS_ID_SIZE, "ucc_geth.%u", ucc_num);
155 of_platform_device_create(np, bus_id, NULL);
160 device_initcall(mpc8360_declare_of_platform_devices);
162 static void __init mpc8360_sys_init_IRQ(void)
165 struct device_node *np;
167 np = of_find_node_by_type(NULL, "ipic");
173 /* Initialize the default interrupt mapping priorities,
174 * in case the boot rom changed something on us.
176 ipic_set_default_priority();
179 #ifdef CONFIG_QUICC_ENGINE
180 np = of_find_node_by_type(NULL, "qeic");
186 #endif /* CONFIG_QUICC_ENGINE */
189 #if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
190 extern ulong ds1374_get_rtc_time(void);
191 extern int ds1374_set_rtc_time(ulong);
193 static int __init mpc8360_rtc_hookup(void)
197 ppc_md.get_rtc_time = ds1374_get_rtc_time;
198 ppc_md.set_rtc_time = ds1374_set_rtc_time;
201 tv.tv_sec = (ppc_md.get_rtc_time) ();
202 do_settimeofday(&tv);
207 late_initcall(mpc8360_rtc_hookup);
211 * Called very early, MMU is off, device-tree isn't unflattened
213 static int __init mpc8360_sys_probe(void)
215 char *model = of_get_flat_dt_prop(of_get_flat_dt_root(),
219 if (strcmp(model, "MPC8360EPB"))
222 DBG("MPC8360EMDS-PB found\n");
227 define_machine(mpc8360_sys) {
228 .name = "MPC8360E PB",
229 .probe = mpc8360_sys_probe,
230 .setup_arch = mpc8360_sys_setup_arch,
231 .init_IRQ = mpc8360_sys_init_IRQ,
232 .get_irq = ipic_get_irq,
233 .restart = mpc83xx_restart,
234 .time_init = mpc83xx_time_init,
235 .calibrate_decr = generic_calibrate_decr,
236 .progress = udbg_progress,