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/hardware/gic.h>
36 #include <asm/mach-types.h>
37 #include <asm/mach/arch.h>
38 #include <asm/mach/time.h>
39 #include <asm/setup.h>
41 #include <mach/iomap.h>
42 #include <mach/irqs.h>
48 struct of_dev_auxdata tegra20_auxdata_lookup
[] __initdata
= {
49 OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC1_BASE
, "sdhci-tegra.0", NULL
),
50 OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC2_BASE
, "sdhci-tegra.1", NULL
),
51 OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC3_BASE
, "sdhci-tegra.2", NULL
),
52 OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC4_BASE
, "sdhci-tegra.3", NULL
),
53 OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C_BASE
, "tegra-i2c.0", NULL
),
54 OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C2_BASE
, "tegra-i2c.1", NULL
),
55 OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C3_BASE
, "tegra-i2c.2", NULL
),
56 OF_DEV_AUXDATA("nvidia,tegra20-i2c-dvc", TEGRA_DVC_BASE
, "tegra-i2c.3", NULL
),
57 OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S1_BASE
, "tegra20-i2s.0", NULL
),
58 OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S2_BASE
, "tegra20-i2s.1", NULL
),
59 OF_DEV_AUXDATA("nvidia,tegra20-das", TEGRA_APB_MISC_DAS_BASE
, "tegra20-das", NULL
),
60 OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB_BASE
, "tegra-ehci.0",
62 OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB2_BASE
, "tegra-ehci.1",
64 OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB3_BASE
, "tegra-ehci.2",
66 OF_DEV_AUXDATA("nvidia,tegra20-apbdma", TEGRA_APB_DMA_BASE
, "tegra-apbdma", NULL
),
67 OF_DEV_AUXDATA("nvidia,tegra20-pwm", TEGRA_PWFM_BASE
, "tegra-pwm", NULL
),
71 static __initdata
struct tegra_clk_init_table tegra_dt_clk_init_table
[] = {
72 /* name parent rate enabled */
73 { "uarta", "pll_p", 216000000, true },
74 { "uartd", "pll_p", 216000000, true },
75 { "usbd", "clk_m", 12000000, false },
76 { "usb2", "clk_m", 12000000, false },
77 { "usb3", "clk_m", 12000000, false },
78 { "pll_a", "pll_p_out1", 56448000, true },
79 { "pll_a_out0", "pll_a", 11289600, true },
80 { "cdev1", NULL
, 0, true },
81 { "i2s1", "pll_a_out0", 11289600, false},
82 { "i2s2", "pll_a_out0", 11289600, false},
86 static void __init
tegra_dt_init(void)
88 tegra_clk_init_from_table(tegra_dt_clk_init_table
);
91 * Finished with the static registrations now; fill in the missing
94 of_platform_populate(NULL
, of_default_bus_match_table
,
95 tegra20_auxdata_lookup
, NULL
);
98 static void __init
trimslice_init(void)
100 #ifdef CONFIG_TEGRA_PCI
103 ret
= tegra_pcie_init(true, true);
105 pr_err("tegra_pci_init() failed: %d\n", ret
);
109 static void __init
harmony_init(void)
111 #ifdef CONFIG_TEGRA_PCI
114 ret
= harmony_pcie_init();
116 pr_err("harmony_pcie_init() failed: %d\n", ret
);
120 static void __init
paz00_init(void)
122 tegra_paz00_wifikill_init();
128 } board_init_funcs
[] = {
129 { "compulab,trimslice", trimslice_init
},
130 { "nvidia,harmony", harmony_init
},
131 { "compal,paz00", paz00_init
},
134 static void __init
tegra_dt_init_late(void)
140 for (i
= 0; i
< ARRAY_SIZE(board_init_funcs
); i
++) {
141 if (of_machine_is_compatible(board_init_funcs
[i
].machine
)) {
142 board_init_funcs
[i
].init();
148 static const char *tegra20_dt_board_compat
[] = {
153 DT_MACHINE_START(TEGRA_DT
, "nVidia Tegra20 (Flattened Device Tree)")
154 .map_io
= tegra_map_common_io
,
155 .init_early
= tegra20_init_early
,
156 .init_irq
= tegra_dt_init_irq
,
157 .handle_irq
= gic_handle_irq
,
158 .timer
= &tegra_timer
,
159 .init_machine
= tegra_dt_init
,
160 .init_late
= tegra_dt_init_late
,
161 .restart
= tegra_assert_system_reset
,
162 .dt_compat
= tegra20_dt_board_compat
,