2 * Copyright 2008 DENX Software Engineering GmbH
3 * Author: Heiko Schocher <hs@denx.de>
6 * Keymile KMETER1 board specific routines.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
14 #include <linux/stddef.h>
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/errno.h>
18 #include <linux/reboot.h>
19 #include <linux/pci.h>
20 #include <linux/kdev_t.h>
21 #include <linux/major.h>
22 #include <linux/console.h>
23 #include <linux/delay.h>
24 #include <linux/seq_file.h>
25 #include <linux/root_dev.h>
26 #include <linux/initrd.h>
27 #include <linux/of_platform.h>
28 #include <linux/of_device.h>
30 #include <asm/system.h>
31 #include <asm/atomic.h>
34 #include <asm/machdep.h>
39 #include <sysdev/fsl_soc.h>
40 #include <sysdev/fsl_pci.h>
42 #include <asm/qe_ic.h>
46 #define SVR_REV(svr) (((svr) >> 0) & 0xFFFF) /* Revision field */
47 /* ************************************************************************
49 * Setup the architecture
52 static void __init kmeter1_setup_arch(void)
54 struct device_node *np;
57 ppc_md.progress("kmeter1_setup_arch()", 0);
60 for_each_compatible_node(np, "pci", "fsl,mpc8349-pci")
61 mpc83xx_add_bridge(np);
64 #ifdef CONFIG_QUICC_ENGINE
67 np = of_find_node_by_name(NULL, "par_io");
72 for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;)
76 np = of_find_compatible_node(NULL, "network", "ucc_geth");
80 /* handle mpc8360ea rev.2.1 erratum 2: RGMII Timing */
81 svid = mfspr(SPRN_SVR);
82 if (SVR_REV(svid) == 0x0021) {
83 struct device_node *np_par;
88 np_par = of_find_node_by_name(NULL, "par_io");
90 printk(KERN_WARNING "%s couldn;t find par_io node\n",
94 /* Map Parallel I/O ports registers */
95 ret = of_address_to_resource(np_par, 0, &res);
97 printk(KERN_WARNING "%s couldn;t map par_io registers\n",
101 base = ioremap(res.start, res.end - res.start + 1);
104 * IMMR + 0x14A8[4:5] = 11 (clk delay for UCC 2)
105 * IMMR + 0x14A8[18:19] = 11 (clk delay for UCC 1)
107 setbits32((base + 0xa8), 0x0c003000);
110 * IMMR + 0x14AC[20:27] = 10101010
111 * (data delay for both UCC's)
113 clrsetbits_be32((base + 0xac), 0xff0, 0xaa0);
119 #endif /* CONFIG_QUICC_ENGINE */
122 static struct of_device_id kmeter_ids[] = {
124 { .compatible = "soc", },
125 { .compatible = "simple-bus", },
127 { .compatible = "fsl,qe", },
131 static int __init kmeter_declare_of_platform_devices(void)
133 /* Publish the QE devices */
134 of_platform_bus_probe(NULL, kmeter_ids, NULL);
138 machine_device_initcall(kmeter1, kmeter_declare_of_platform_devices);
140 static void __init kmeter1_init_IRQ(void)
142 struct device_node *np;
144 np = of_find_compatible_node(NULL, NULL, "fsl,pq2pro-pic");
146 np = of_find_node_by_type(NULL, "ipic");
153 /* Initialize the default interrupt mapping priorities,
154 * in case the boot rom changed something on us.
156 ipic_set_default_priority();
159 #ifdef CONFIG_QUICC_ENGINE
160 np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
162 np = of_find_node_by_type(NULL, "qeic");
166 qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic);
168 #endif /* CONFIG_QUICC_ENGINE */
172 * Called very early, MMU is off, device-tree isn't unflattened
174 static int __init kmeter1_probe(void)
176 unsigned long root = of_get_flat_dt_root();
178 return of_flat_dt_is_compatible(root, "keymile,KMETER1");
181 define_machine(kmeter1) {
183 .probe = kmeter1_probe,
184 .setup_arch = kmeter1_setup_arch,
185 .init_IRQ = kmeter1_init_IRQ,
186 .get_irq = ipic_get_irq,
187 .restart = mpc83xx_restart,
188 .time_init = mpc83xx_time_init,
189 .calibrate_decr = generic_calibrate_decr,
190 .progress = udbg_progress,