2 * NVIDIA Tegra SoC device tree board support
4 * Copyright (C) 2011, 2013, NVIDIA Corporation
5 * Copyright (C) 2010 Secret Lab Technologies, Ltd.
6 * Copyright (C) 2010 Google, Inc.
8 * This software is licensed under the terms of the GNU General Public
9 * License version 2, as published by the Free Software Foundation, and
10 * may be copied, distributed, and modified under those terms.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
19 #include <linux/kernel.h>
20 #include <linux/init.h>
21 #include <linux/platform_device.h>
22 #include <linux/serial_8250.h>
23 #include <linux/clk.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/irqdomain.h>
27 #include <linux/of_address.h>
28 #include <linux/of_fdt.h>
29 #include <linux/of_platform.h>
30 #include <linux/pda_power.h>
32 #include <linux/slab.h>
33 #include <linux/sys_soc.h>
34 #include <linux/usb/tegra_usb_phy.h>
35 #include <linux/clk/tegra.h>
37 #include <asm/mach-types.h>
38 #include <asm/mach/arch.h>
39 #include <asm/mach/time.h>
40 #include <asm/setup.h>
48 static void __init tegra_dt_init(void)
50 struct soc_device_attribute *soc_dev_attr;
51 struct soc_device *soc_dev;
52 struct device *parent = NULL;
56 tegra_clocks_apply_init_table();
58 soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
62 soc_dev_attr->family = kasprintf(GFP_KERNEL, "Tegra");
63 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%d", tegra_revision);
64 soc_dev_attr->soc_id = kasprintf(GFP_KERNEL, "%d", tegra_chip_id);
66 soc_dev = soc_device_register(soc_dev_attr);
67 if (IS_ERR(soc_dev)) {
68 kfree(soc_dev_attr->family);
69 kfree(soc_dev_attr->revision);
70 kfree(soc_dev_attr->soc_id);
75 parent = soc_device_to_device(soc_dev);
78 * Finished with the static registrations now; fill in the missing
82 of_platform_populate(NULL, of_default_bus_match_table, NULL, parent);
85 static void __init paz00_init(void)
87 if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC))
88 tegra_paz00_wifikill_init();
94 } board_init_funcs[] = {
95 { "compal,paz00", paz00_init },
98 static void __init tegra_dt_init_late(void)
104 for (i = 0; i < ARRAY_SIZE(board_init_funcs); i++) {
105 if (of_machine_is_compatible(board_init_funcs[i].machine)) {
106 board_init_funcs[i].init();
112 static const char * const tegra_dt_board_compat[] = {
119 DT_MACHINE_START(TEGRA_DT, "NVIDIA Tegra SoC (Flattened Device Tree)")
120 .map_io = tegra_map_common_io,
121 .smp = smp_ops(tegra_smp_ops),
122 .init_early = tegra_init_early,
123 .init_irq = tegra_dt_init_irq,
124 .init_machine = tegra_dt_init,
125 .init_late = tegra_dt_init_late,
126 .restart = tegra_assert_system_reset,
127 .dt_compat = tegra_dt_board_compat,