2 * arch/powerpc/platforms/83xx/mpc832x_rdb.c
4 * Copyright (C) Freescale Semiconductor, Inc. 2007. All rights reserved.
7 * MPC832x RDB board specific routines.
8 * This file is based on mpc832x_mds.c and mpc8313_rdb.c
9 * Author: Michael Barkowski <michael.barkowski@freescale.com>
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
17 #include <linux/pci.h>
18 #include <linux/interrupt.h>
19 #include <linux/spi/spi.h>
20 #include <linux/spi/mmc_spi.h>
21 #include <linux/mmc/host.h>
22 #include <linux/of_platform.h>
28 #include <asm/qe_ic.h>
29 #include <sysdev/fsl_soc.h>
30 #include <sysdev/fsl_pci.h>
36 #define DBG(fmt...) udbg_printf(fmt)
41 #ifdef CONFIG_QUICC_ENGINE
42 static void mpc83xx_spi_activate_cs(u8 cs, u8 polarity)
44 pr_debug("%s %d %d\n", __func__, cs, polarity);
45 par_io_data_set(3, 13, polarity);
48 static void mpc83xx_spi_deactivate_cs(u8 cs, u8 polarity)
50 pr_debug("%s %d %d\n", __func__, cs, polarity);
51 par_io_data_set(3, 13, !polarity);
54 static struct mmc_spi_platform_data mpc832x_mmc_pdata = {
55 .ocr_mask = MMC_VDD_33_34,
58 static struct spi_board_info mpc832x_spi_boardinfo = {
61 .max_speed_hz = 50000000,
62 .modalias = "mmc_spi",
63 .platform_data = &mpc832x_mmc_pdata,
66 static int __init mpc832x_spi_init(void)
68 par_io_config_pin(3, 0, 3, 0, 1, 0); /* SPI1 MOSI, I/O */
69 par_io_config_pin(3, 1, 3, 0, 1, 0); /* SPI1 MISO, I/O */
70 par_io_config_pin(3, 2, 3, 0, 1, 0); /* SPI1 CLK, I/O */
71 par_io_config_pin(3, 3, 2, 0, 1, 0); /* SPI1 SEL, I */
73 par_io_config_pin(3, 13, 1, 0, 0, 0); /* !SD_CS, O */
74 par_io_config_pin(3, 14, 2, 0, 0, 0); /* SD_INSERT, I */
75 par_io_config_pin(3, 15, 2, 0, 0, 0); /* SD_PROTECT,I */
77 return fsl_spi_init(&mpc832x_spi_boardinfo, 1,
78 mpc83xx_spi_activate_cs,
79 mpc83xx_spi_deactivate_cs);
81 machine_device_initcall(mpc832x_rdb, mpc832x_spi_init);
82 #endif /* CONFIG_QUICC_ENGINE */
84 /* ************************************************************************
86 * Setup the architecture
89 static void __init mpc832x_rdb_setup_arch(void)
91 #if defined(CONFIG_PCI) || defined(CONFIG_QUICC_ENGINE)
92 struct device_node *np;
96 ppc_md.progress("mpc832x_rdb_setup_arch()", 0);
99 for_each_compatible_node(np, "pci", "fsl,mpc8349-pci")
100 mpc83xx_add_bridge(np);
103 #ifdef CONFIG_QUICC_ENGINE
106 if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
110 for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;)
111 par_io_of_config(np);
113 #endif /* CONFIG_QUICC_ENGINE */
116 static struct of_device_id mpc832x_ids[] = {
118 { .compatible = "soc", },
119 { .compatible = "simple-bus", },
121 { .compatible = "fsl,qe", },
125 static int __init mpc832x_declare_of_platform_devices(void)
127 /* Publish the QE devices */
128 of_platform_bus_probe(NULL, mpc832x_ids, NULL);
132 machine_device_initcall(mpc832x_rdb, mpc832x_declare_of_platform_devices);
134 static void __init mpc832x_rdb_init_IRQ(void)
137 struct device_node *np;
139 np = of_find_node_by_type(NULL, "ipic");
145 /* Initialize the default interrupt mapping priorities,
146 * in case the boot rom changed something on us.
148 ipic_set_default_priority();
151 #ifdef CONFIG_QUICC_ENGINE
152 np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
154 np = of_find_node_by_type(NULL, "qeic");
158 qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic);
160 #endif /* CONFIG_QUICC_ENGINE */
164 * Called very early, MMU is off, device-tree isn't unflattened
166 static int __init mpc832x_rdb_probe(void)
168 unsigned long root = of_get_flat_dt_root();
170 return of_flat_dt_is_compatible(root, "MPC832xRDB");
173 define_machine(mpc832x_rdb) {
174 .name = "MPC832x RDB",
175 .probe = mpc832x_rdb_probe,
176 .setup_arch = mpc832x_rdb_setup_arch,
177 .init_IRQ = mpc832x_rdb_init_IRQ,
178 .get_irq = ipic_get_irq,
179 .restart = mpc83xx_restart,
180 .time_init = mpc83xx_time_init,
181 .calibrate_decr = generic_calibrate_decr,
182 .progress = udbg_progress,