2 * Copyright 2008-2011 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 <linux/atomic.h>
33 #include <asm/machdep.h>
38 #include <sysdev/fsl_soc.h>
39 #include <sysdev/fsl_pci.h>
41 #include <asm/qe_ic.h>
45 #define SVR_REV(svr) (((svr) >> 0) & 0xFFFF) /* Revision field */
46 /* ************************************************************************
48 * Setup the architecture
51 static void __init mpc83xx_km_setup_arch(void)
53 #ifdef CONFIG_QUICC_ENGINE
54 struct device_node *np;
58 ppc_md.progress("kmpbec83xx_setup_arch()", 0);
62 #ifdef CONFIG_QUICC_ENGINE
65 np = of_find_node_by_name(NULL, "par_io");
70 for_each_node_by_name(np, "spi")
73 for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;)
77 np = of_find_compatible_node(NULL, "network", "ucc_geth");
81 /* handle mpc8360ea rev.2.1 erratum 2: RGMII Timing */
82 svid = mfspr(SPRN_SVR);
83 if (SVR_REV(svid) == 0x0021) {
84 struct device_node *np_par;
89 np_par = of_find_node_by_name(NULL, "par_io");
91 printk(KERN_WARNING "%s couldn;t find par_io node\n",
95 /* Map Parallel I/O ports registers */
96 ret = of_address_to_resource(np_par, 0, &res);
98 printk(KERN_WARNING "%s couldn;t map par_io registers\n",
102 base = ioremap(res.start, resource_size(&res));
105 * IMMR + 0x14A8[4:5] = 11 (clk delay for UCC 2)
106 * IMMR + 0x14A8[18:19] = 11 (clk delay for UCC 1)
108 setbits32((base + 0xa8), 0x0c003000);
111 * IMMR + 0x14AC[20:27] = 10101010
112 * (data delay for both UCC's)
114 clrsetbits_be32((base + 0xac), 0xff0, 0xaa0);
120 #endif /* CONFIG_QUICC_ENGINE */
123 machine_device_initcall(mpc83xx_km, mpc83xx_declare_of_platform_devices);
125 /* list of the supported boards */
126 static char *board[] __initdata = {
128 "Keymile,kmpbec8321",
133 * Called very early, MMU is off, device-tree isn't unflattened
135 static int __init mpc83xx_km_probe(void)
137 unsigned long node = of_get_flat_dt_root();
141 if (of_flat_dt_is_compatible(node, board[i]))
145 return (board[i] != NULL);
148 define_machine(mpc83xx_km) {
149 .name = "mpc83xx-km-platform",
150 .probe = mpc83xx_km_probe,
151 .setup_arch = mpc83xx_km_setup_arch,
152 .init_IRQ = mpc83xx_ipic_and_qe_init_IRQ,
153 .get_irq = ipic_get_irq,
154 .restart = mpc83xx_restart,
155 .time_init = mpc83xx_time_init,
156 .calibrate_decr = generic_calibrate_decr,
157 .progress = udbg_progress,