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authorSascha Hauer <s.hauer@pengutronix.de>2011-08-08 02:22:41 -0400
committerSascha Hauer <s.hauer@pengutronix.de>2011-08-08 02:22:41 -0400
commit1a43f2012455a977397deffe35912fd3f3ce17b9 (patch)
tree5189f337df44e7a495fbd097cd476b0380babd8c /arch/arm/mach-tegra/board-dt.c
parente1b96ada659431669efaf3defa997abf5db68130 (diff)
parent322a8b034003c0d46d39af85bf24fee27b902f48 (diff)
Merge commit 'v3.1-rc1' into imx-fixes
Diffstat (limited to 'arch/arm/mach-tegra/board-dt.c')
-rw-r--r--arch/arm/mach-tegra/board-dt.c119
1 files changed, 119 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-dt.c b/arch/arm/mach-tegra/board-dt.c
new file mode 100644
index 000000000000..9f47e04446f3
--- /dev/null
+++ b/arch/arm/mach-tegra/board-dt.c
@@ -0,0 +1,119 @@
1/*
2 * nVidia Tegra device tree board support
3 *
4 * Copyright (C) 2010 Secret Lab Technologies, Ltd.
5 * Copyright (C) 2010 Google, Inc.
6 *
7 * This software is licensed under the terms of the GNU General Public
8 * License version 2, as published by the Free Software Foundation, and
9 * may be copied, distributed, and modified under those terms.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 */
17
18#include <linux/kernel.h>
19#include <linux/init.h>
20#include <linux/platform_device.h>
21#include <linux/serial_8250.h>
22#include <linux/clk.h>
23#include <linux/dma-mapping.h>
24#include <linux/irqdomain.h>
25#include <linux/of.h>
26#include <linux/of_address.h>
27#include <linux/of_fdt.h>
28#include <linux/of_irq.h>
29#include <linux/of_platform.h>
30#include <linux/pda_power.h>
31#include <linux/io.h>
32#include <linux/i2c.h>
33#include <linux/i2c-tegra.h>
34
35#include <asm/mach-types.h>
36#include <asm/mach/arch.h>
37#include <asm/mach/time.h>
38#include <asm/setup.h>
39
40#include <mach/iomap.h>
41#include <mach/irqs.h>
42
43#include "board.h"
44#include "board-harmony.h"
45#include "clock.h"
46#include "devices.h"
47
48void harmony_pinmux_init(void);
49void seaboard_pinmux_init(void);
50
51
52struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = {
53 OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC1_BASE, "sdhci-tegra.0", NULL),
54 OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC2_BASE, "sdhci-tegra.1", NULL),
55 OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC3_BASE, "sdhci-tegra.2", NULL),
56 OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC4_BASE, "sdhci-tegra.3", NULL),
57 OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C_BASE, "tegra-i2c.0", NULL),
58 OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C2_BASE, "tegra-i2c.1", NULL),
59 OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C3_BASE, "tegra-i2c.2", NULL),
60 OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_DVC_BASE, "tegra-i2c.3", NULL),
61 OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S1_BASE, "tegra-i2s.0", NULL),
62 OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S1_BASE, "tegra-i2s.1", NULL),
63 OF_DEV_AUXDATA("nvidia,tegra20-das", TEGRA_APB_MISC_DAS_BASE, "tegra-das", NULL),
64 {}
65};
66
67static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = {
68 /* name parent rate enabled */
69 { "uartd", "pll_p", 216000000, true },
70 { NULL, NULL, 0, 0},
71};
72
73static struct of_device_id tegra_dt_match_table[] __initdata = {
74 { .compatible = "simple-bus", },
75 {}
76};
77
78static struct of_device_id tegra_dt_gic_match[] __initdata = {
79 { .compatible = "nvidia,tegra20-gic", },
80 {}
81};
82
83static void __init tegra_dt_init(void)
84{
85 struct device_node *node;
86
87 node = of_find_matching_node_by_address(NULL, tegra_dt_gic_match,
88 TEGRA_ARM_INT_DIST_BASE);
89 if (node)
90 irq_domain_add_simple(node, INT_GIC_BASE);
91
92 tegra_clk_init_from_table(tegra_dt_clk_init_table);
93
94 if (of_machine_is_compatible("nvidia,harmony"))
95 harmony_pinmux_init();
96 else if (of_machine_is_compatible("nvidia,seaboard"))
97 seaboard_pinmux_init();
98
99 /*
100 * Finished with the static registrations now; fill in the missing
101 * devices
102 */
103 of_platform_populate(NULL, tegra_dt_match_table, tegra20_auxdata_lookup, NULL);
104}
105
106static const char * tegra_dt_board_compat[] = {
107 "nvidia,harmony",
108 "nvidia,seaboard",
109 NULL
110};
111
112DT_MACHINE_START(TEGRA_DT, "nVidia Tegra (Flattened Device Tree)")
113 .map_io = tegra_map_common_io,
114 .init_early = tegra_init_early,
115 .init_irq = tegra_init_irq,
116 .timer = &tegra_timer,
117 .init_machine = tegra_dt_init,
118 .dt_compat = tegra_dt_board_compat,
119MACHINE_END