2 * Copyright (C) Freescale Semicondutor, Inc. 2006-2007. All rights reserved.
4 * Author: Andy Fleming <afleming@freescale.com>
6 * Based on 83xx/mpc8360e_pb.c by:
7 * Li Yang <LeoLi@freescale.com>
8 * Yin Olivia <Hong-hua.Yin@freescale.com>
11 * MPC85xx MDS board specific routines.
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/initrd.h>
31 #include <linux/module.h>
32 #include <linux/fsl_devices.h>
34 #include <asm/of_device.h>
35 #include <asm/of_platform.h>
36 #include <asm/system.h>
37 #include <asm/atomic.h>
40 #include <asm/machdep.h>
41 #include <asm/bootinfo.h>
42 #include <asm/pci-bridge.h>
43 #include <asm/mpc85xx.h>
45 #include <mm/mmu_decl.h>
48 #include <sysdev/fsl_soc.h>
50 #include <asm/qe_ic.h>
57 #define DBG(fmt...) udbg_printf(fmt)
63 unsigned long isa_io_base = 0;
64 unsigned long isa_mem_base = 0;
67 /* ************************************************************************
69 * Setup the architecture
72 static void __init mpc85xx_mds_setup_arch(void)
74 struct device_node *np;
75 static u8 *bcsr_regs = NULL;
78 ppc_md.progress("mpc85xx_mds_setup_arch()", 0);
80 np = of_find_node_by_type(NULL, "cpu");
82 const unsigned int *fp =
83 get_property(np, "clock-frequency", NULL);
85 loops_per_jiffy = *fp / HZ;
87 loops_per_jiffy = 50000000 / HZ;
92 np = of_find_node_by_name(NULL, "bcsr");
96 of_address_to_resource(np, 0, &res);
97 bcsr_regs = ioremap(res.start, res.end - res.start +1);
102 for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;) {
108 #ifdef CONFIG_QUICC_ENGINE
109 if ((np = of_find_node_by_name(NULL, "qe")) != NULL) {
114 if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
115 struct device_node *ucc = NULL;
120 for ( ;(ucc = of_find_node_by_name(ucc, "ucc")) != NULL;)
121 par_io_of_config(ucc);
129 /* Reset the Ethernet PHY */
130 bcsr_phy = in_be8(&bcsr_regs[9]);
132 out_be8(&bcsr_regs[9], bcsr_phy);
136 bcsr_phy = in_be8(&bcsr_regs[9]);
138 out_be8(&bcsr_regs[9], bcsr_phy);
143 #endif /* CONFIG_QUICC_ENGINE */
146 static struct of_device_id mpc85xx_ids[] = {
148 { .compatible = "soc", },
153 static int __init mpc85xx_publish_devices(void)
155 if (!machine_is(mpc85xx_mds))
158 /* Publish the QE devices */
159 of_platform_bus_probe(NULL,mpc85xx_ids,NULL);
163 device_initcall(mpc85xx_publish_devices);
165 static void __init mpc85xx_mds_pic_init(void)
169 struct device_node *np = NULL;
171 np = of_find_node_by_type(NULL, "open-pic");
175 if (of_address_to_resource(np, 0, &r)) {
176 printk(KERN_ERR "Failed to map mpic register space\n");
181 mpic = mpic_alloc(np, r.start,
182 MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
184 BUG_ON(mpic == NULL);
187 /* Internal Interrupts */
188 mpic_assign_isu(mpic, 0, r.start + 0x10200);
189 mpic_assign_isu(mpic, 1, r.start + 0x10280);
190 mpic_assign_isu(mpic, 2, r.start + 0x10300);
191 mpic_assign_isu(mpic, 3, r.start + 0x10380);
192 mpic_assign_isu(mpic, 4, r.start + 0x10400);
193 mpic_assign_isu(mpic, 5, r.start + 0x10480);
194 mpic_assign_isu(mpic, 6, r.start + 0x10500);
195 mpic_assign_isu(mpic, 7, r.start + 0x10580);
196 mpic_assign_isu(mpic, 8, r.start + 0x10600);
197 mpic_assign_isu(mpic, 9, r.start + 0x10680);
198 mpic_assign_isu(mpic, 10, r.start + 0x10700);
199 mpic_assign_isu(mpic, 11, r.start + 0x10780);
201 /* External Interrupts */
202 mpic_assign_isu(mpic, 12, r.start + 0x10000);
203 mpic_assign_isu(mpic, 13, r.start + 0x10080);
204 mpic_assign_isu(mpic, 14, r.start + 0x10100);
208 #ifdef CONFIG_QUICC_ENGINE
209 np = of_find_node_by_type(NULL, "qeic");
215 #endif /* CONFIG_QUICC_ENGINE */
218 static int __init mpc85xx_mds_probe(void)
220 unsigned long root = of_get_flat_dt_root();
222 return of_flat_dt_is_compatible(root, "MPC85xxMDS");
225 define_machine(mpc85xx_mds) {
226 .name = "MPC85xx MDS",
227 .probe = mpc85xx_mds_probe,
228 .setup_arch = mpc85xx_mds_setup_arch,
229 .init_IRQ = mpc85xx_mds_pic_init,
230 .get_irq = mpic_get_irq,
231 .restart = mpc85xx_restart,
232 .calibrate_decr = generic_calibrate_decr,
233 .progress = udbg_progress,