arm: tegra: sd: enable sd dpd
[linux-2.6.git] / arch / arm / mach-tegra / board-dt.c
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
48 void harmony_pinmux_init(void);
49 void seaboard_pinmux_init(void);
50
51
52 struct 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
67 static __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
73 static struct of_device_id tegra_dt_match_table[] __initdata = {
74         { .compatible = "simple-bus", },
75         {}
76 };
77
78 static struct of_device_id tegra_dt_gic_match[] __initdata = {
79         { .compatible = "nvidia,tegra20-gic", },
80         {}
81 };
82
83 static 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
106 static const char * tegra_dt_board_compat[] = {
107         "nvidia,harmony",
108         "nvidia,seaboard",
109         NULL
110 };
111
112 DT_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,
119 MACHINE_END