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 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>
44 #include <sysdev/fsl_soc.h>
46 #include <asm/qe_ic.h>
52 #define DBG(fmt...) udbg_printf(fmt)
57 static u8 *bcsr_regs = NULL;
59 /* ************************************************************************
61 * Setup the architecture
64 static void __init mpc836x_mds_setup_arch(void)
66 struct device_node *np;
69 ppc_md.progress("mpc836x_mds_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_each_compatible_node(np, "pci", "fsl,mpc8349-pci")
83 mpc83xx_add_bridge(np);
86 #ifdef CONFIG_QUICC_ENGINE
89 if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
93 for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;)
97 if ((np = of_find_compatible_node(NULL, "network", "ucc_geth"))
101 /* Reset the Ethernet PHY */
102 #define BCSR9_GETHRST 0x20
103 clrbits8(&bcsr_regs[9], BCSR9_GETHRST);
105 setbits8(&bcsr_regs[9], BCSR9_GETHRST);
107 /* handle mpc8360ea rev.2.1 erratum 2: RGMII Timing */
108 svid = mfspr(SPRN_SVR);
109 if (svid == 0x80480021) {
112 immap = ioremap(get_immrbase() + 0x14a8, 8);
115 * IMMR + 0x14A8[4:5] = 11 (clk delay for UCC 2)
116 * IMMR + 0x14A8[18:19] = 11 (clk delay for UCC 1)
118 setbits32(immap, 0x0c003000);
121 * IMMR + 0x14AC[20:27] = 10101010
122 * (data delay for both UCC's)
124 clrsetbits_be32(immap + 4, 0xff0, 0xaa0);
132 #endif /* CONFIG_QUICC_ENGINE */
135 static struct of_device_id mpc836x_ids[] = {
137 { .compatible = "soc", },
142 static int __init mpc836x_declare_of_platform_devices(void)
144 if (!machine_is(mpc836x_mds))
147 /* Publish the QE devices */
148 of_platform_bus_probe(NULL, mpc836x_ids, NULL);
152 device_initcall(mpc836x_declare_of_platform_devices);
154 static void __init mpc836x_mds_init_IRQ(void)
156 struct device_node *np;
158 np = of_find_node_by_type(NULL, "ipic");
164 /* Initialize the default interrupt mapping priorities,
165 * in case the boot rom changed something on us.
167 ipic_set_default_priority();
170 #ifdef CONFIG_QUICC_ENGINE
171 np = of_find_node_by_type(NULL, "qeic");
175 qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic);
177 #endif /* CONFIG_QUICC_ENGINE */
180 #if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
181 extern ulong ds1374_get_rtc_time(void);
182 extern int ds1374_set_rtc_time(ulong);
184 static int __init mpc8360_rtc_hookup(void)
188 if (!machine_is(mpc836x_mds))
191 ppc_md.get_rtc_time = ds1374_get_rtc_time;
192 ppc_md.set_rtc_time = ds1374_set_rtc_time;
195 tv.tv_sec = (ppc_md.get_rtc_time) ();
196 do_settimeofday(&tv);
201 late_initcall(mpc8360_rtc_hookup);
205 * Called very early, MMU is off, device-tree isn't unflattened
207 static int __init mpc836x_mds_probe(void)
209 unsigned long root = of_get_flat_dt_root();
211 return of_flat_dt_is_compatible(root, "MPC836xMDS");
214 define_machine(mpc836x_mds) {
215 .name = "MPC836x MDS",
216 .probe = mpc836x_mds_probe,
217 .setup_arch = mpc836x_mds_setup_arch,
218 .init_IRQ = mpc836x_mds_init_IRQ,
219 .get_irq = ipic_get_irq,
220 .restart = mpc83xx_restart,
221 .time_init = mpc83xx_time_init,
222 .calibrate_decr = generic_calibrate_decr,
223 .progress = udbg_progress,