2 * nVidia Tegra device tree board support
4 * Copyright (C) 2010 Secret Lab Technologies, Ltd.
5 * Copyright (C) 2010 Google, Inc.
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.
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.
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>
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>
32 #include <linux/i2c.h>
33 #include <linux/i2c-tegra.h>
35 #include <asm/mach-types.h>
36 #include <asm/mach/arch.h>
37 #include <asm/mach/time.h>
38 #include <asm/setup.h>
39 #include <asm/hardware/gic.h>
41 #include <mach/iomap.h>
42 #include <mach/irqs.h>
45 #include "board-harmony.h"
49 void harmony_pinmux_init(void);
50 void paz00_pinmux_init(void);
51 void seaboard_pinmux_init(void);
52 void trimslice_pinmux_init(void);
53 void ventana_pinmux_init(void);
55 static const struct of_device_id tegra_dt_irq_match[] __initconst = {
56 { .compatible = "arm,cortex-a9-gic", .data = gic_of_init },
60 void __init tegra_dt_init_irq(void)
63 of_irq_init(tegra_dt_irq_match);
66 struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = {
67 OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC1_BASE, "sdhci-tegra.0", NULL),
68 OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC2_BASE, "sdhci-tegra.1", NULL),
69 OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC3_BASE, "sdhci-tegra.2", NULL),
70 OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC4_BASE, "sdhci-tegra.3", NULL),
71 OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C_BASE, "tegra-i2c.0", NULL),
72 OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C2_BASE, "tegra-i2c.1", NULL),
73 OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C3_BASE, "tegra-i2c.2", NULL),
74 OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_DVC_BASE, "tegra-i2c.3", NULL),
75 OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S1_BASE, "tegra-i2s.0", NULL),
76 OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S2_BASE, "tegra-i2s.1", NULL),
77 OF_DEV_AUXDATA("nvidia,tegra20-das", TEGRA_APB_MISC_DAS_BASE, "tegra-das", NULL),
78 OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB_BASE, "tegra-ehci.0",
79 &tegra_ehci1_device.dev.platform_data),
80 OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB2_BASE, "tegra-ehci.1",
81 &tegra_ehci2_device.dev.platform_data),
82 OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB3_BASE, "tegra-ehci.2",
83 &tegra_ehci3_device.dev.platform_data),
87 static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = {
88 /* name parent rate enabled */
89 { "uartd", "pll_p", 216000000, true },
90 { "usbd", "clk_m", 12000000, false },
91 { "usb2", "clk_m", 12000000, false },
92 { "usb3", "clk_m", 12000000, false },
93 { "pll_a", "pll_p_out1", 56448000, true },
94 { "pll_a_out0", "pll_a", 11289600, true },
95 { "cdev1", NULL, 0, true },
96 { "i2s1", "pll_a_out0", 11289600, false},
97 { "i2s2", "pll_a_out0", 11289600, false},
101 static struct of_device_id tegra_dt_match_table[] __initdata = {
102 { .compatible = "simple-bus", },
109 } pinmux_configs[] = {
110 { "compulab,trimslice", trimslice_pinmux_init },
111 { "nvidia,harmony", harmony_pinmux_init },
112 { "compal,paz00", paz00_pinmux_init },
113 { "nvidia,seaboard", seaboard_pinmux_init },
114 { "nvidia,ventana", ventana_pinmux_init },
117 static void __init tegra_dt_init(void)
121 tegra_clk_init_from_table(tegra_dt_clk_init_table);
124 * Finished with the static registrations now; fill in the missing
127 of_platform_populate(NULL, tegra_dt_match_table,
128 tegra20_auxdata_lookup, NULL);
130 for (i = 0; i < ARRAY_SIZE(pinmux_configs); i++) {
131 if (of_machine_is_compatible(pinmux_configs[i].machine)) {
132 pinmux_configs[i].init();
137 WARN(i == ARRAY_SIZE(pinmux_configs),
138 "Unknown platform! Pinmuxing not initialized\n");
141 static const char * tegra_dt_board_compat[] = {
142 "compulab,trimslice",
150 DT_MACHINE_START(TEGRA_DT, "nVidia Tegra (Flattened Device Tree)")
151 .map_io = tegra_map_common_io,
152 .init_early = tegra_init_early,
153 .init_irq = tegra_dt_init_irq,
154 .timer = &tegra_timer,
155 .init_machine = tegra_dt_init,
156 .dt_compat = tegra_dt_board_compat,