From 8e267f3da5f117d2f1316cf6ddf740f93f1c73aa Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Tue, 19 Jul 2011 17:26:54 -0600 Subject: [PATCH] arm/dt: tegra devicetree support Everything required to populate NVIDIA Tegra devices from the device tree. This patch adds a new DT_MACHINE_DESC() which matches against a tegra20 device tree. So far it only registers the on-chip devices, but it will be refined in follow on patches to configure clocks and pin IO from the device tree also. Signed-off-by: Grant Likely --- arch/arm/boot/dts/tegra-harmony.dts | 70 ++++++++++++++++++ arch/arm/boot/dts/tegra-seaboard.dts | 28 +++++++ arch/arm/boot/dts/tegra20.dtsi | 139 +++++++++++++++++++++++++++++++++++ arch/arm/mach-tegra/Kconfig | 6 ++ arch/arm/mach-tegra/Makefile | 3 + arch/arm/mach-tegra/Makefile.boot | 3 + arch/arm/mach-tegra/board-dt.c | 119 ++++++++++++++++++++++++++++++ 7 files changed, 368 insertions(+) create mode 100644 arch/arm/boot/dts/tegra-harmony.dts create mode 100644 arch/arm/boot/dts/tegra-seaboard.dts create mode 100644 arch/arm/boot/dts/tegra20.dtsi create mode 100644 arch/arm/mach-tegra/board-dt.c diff --git a/arch/arm/boot/dts/tegra-harmony.dts b/arch/arm/boot/dts/tegra-harmony.dts new file mode 100644 index 0000000..4c05334 --- /dev/null +++ b/arch/arm/boot/dts/tegra-harmony.dts @@ -0,0 +1,70 @@ +/dts-v1/; + +/memreserve/ 0x1c000000 0x04000000; +/include/ "tegra20.dtsi" + +/ { + model = "NVIDIA Tegra2 Harmony evaluation board"; + compatible = "nvidia,harmony", "nvidia,tegra20"; + + chosen { + bootargs = "vmalloc=192M video=tegrafb console=ttyS0,115200n8 root=/dev/mmcblk0p2 rw rootwait"; + }; + + memory@0 { + reg = < 0x00000000 0x40000000 >; + }; + + i2c@7000c000 { + clock-frequency = <400000>; + + codec: wm8903@1a { + compatible = "wlf,wm8903"; + reg = <0x1a>; + interrupts = < 347 >; + + gpio-controller; + #gpio-cells = <2>; + + /* 0x8000 = Not configured */ + gpio-cfg = < 0x8000 0x8000 0 0x8000 0x8000 >; + }; + }; + + i2c@7000c400 { + clock-frequency = <400000>; + }; + + i2c@7000c500 { + clock-frequency = <400000>; + }; + + i2c@7000d000 { + clock-frequency = <400000>; + }; + + sound { + compatible = "nvidia,harmony-sound", "nvidia,tegra-wm8903"; + + spkr-en-gpios = <&codec 2 0>; + hp-det-gpios = <&gpio 178 0>; + int-mic-en-gpios = <&gpio 184 0>; + ext-mic-en-gpios = <&gpio 185 0>; + }; + + serial@70006300 { + clock-frequency = < 216000000 >; + }; + + sdhci@c8000200 { + gpios = <&gpio 69 0>, /* cd, gpio PI5 */ + <&gpio 57 0>, /* wp, gpio PH1 */ + <&gpio 155 0>; /* power, gpio PT3 */ + }; + + sdhci@c8000600 { + gpios = <&gpio 58 0>, /* cd, gpio PH2 */ + <&gpio 59 0>, /* wp, gpio PH3 */ + <&gpio 70 0>; /* power, gpio PI6 */ + }; +}; diff --git a/arch/arm/boot/dts/tegra-seaboard.dts b/arch/arm/boot/dts/tegra-seaboard.dts new file mode 100644 index 0000000..1940cae --- /dev/null +++ b/arch/arm/boot/dts/tegra-seaboard.dts @@ -0,0 +1,28 @@ +/dts-v1/; + +/memreserve/ 0x1c000000 0x04000000; +/include/ "tegra20.dtsi" + +/ { + model = "NVIDIA Seaboard"; + compatible = "nvidia,seaboard", "nvidia,tegra20"; + + chosen { + bootargs = "vmalloc=192M video=tegrafb console=ttyS0,115200n8 root=/dev/mmcblk1p3 rw rootwait"; + }; + + memory { + device_type = "memory"; + reg = < 0x00000000 0x40000000 >; + }; + + serial@70006300 { + clock-frequency = < 216000000 >; + }; + + sdhci@c8000400 { + gpios = <&gpio 69 0>, /* cd, gpio PI5 */ + <&gpio 57 0>, /* wp, gpio PH1 */ + <&gpio 70 0>; /* power, gpio PI6 */ + }; +}; diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi new file mode 100644 index 0000000..5727595 --- /dev/null +++ b/arch/arm/boot/dts/tegra20.dtsi @@ -0,0 +1,139 @@ +/include/ "skeleton.dtsi" + +/ { + compatible = "nvidia,tegra20"; + interrupt-parent = <&intc>; + + intc: interrupt-controller@50041000 { + compatible = "nvidia,tegra20-gic"; + interrupt-controller; + #interrupt-cells = <1>; + reg = < 0x50041000 0x1000 >, + < 0x50040100 0x0100 >; + }; + + i2c@7000c000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "nvidia,tegra20-i2c"; + reg = <0x7000C000 0x100>; + interrupts = < 70 >; + }; + + i2c@7000c400 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "nvidia,tegra20-i2c"; + reg = <0x7000C400 0x100>; + interrupts = < 116 >; + }; + + i2c@7000c500 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "nvidia,tegra20-i2c"; + reg = <0x7000C500 0x100>; + interrupts = < 124 >; + }; + + i2c@7000d000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "nvidia,tegra20-i2c"; + reg = <0x7000D000 0x200>; + interrupts = < 85 >; + }; + + i2s@70002800 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "nvidia,tegra20-i2s"; + reg = <0x70002800 0x200>; + interrupts = < 45 >; + dma-channel = < 2 >; + }; + + i2s@70002a00 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "nvidia,tegra20-i2s"; + reg = <0x70002a00 0x200>; + interrupts = < 35 >; + dma-channel = < 1 >; + }; + + das@70000c00 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "nvidia,tegra20-das"; + reg = <0x70000c00 0x80>; + }; + + gpio: gpio@6000d000 { + compatible = "nvidia,tegra20-gpio"; + reg = < 0x6000d000 0x1000 >; + interrupts = < 64 65 66 67 87 119 121 >; + #gpio-cells = <2>; + gpio-controller; + }; + + serial@70006000 { + compatible = "nvidia,tegra20-uart"; + reg = <0x70006000 0x40>; + reg-shift = <2>; + interrupts = < 68 >; + }; + + serial@70006040 { + compatible = "nvidia,tegra20-uart"; + reg = <0x70006040 0x40>; + reg-shift = <2>; + interrupts = < 69 >; + }; + + serial@70006200 { + compatible = "nvidia,tegra20-uart"; + reg = <0x70006200 0x100>; + reg-shift = <2>; + interrupts = < 78 >; + }; + + serial@70006300 { + compatible = "nvidia,tegra20-uart"; + reg = <0x70006300 0x100>; + reg-shift = <2>; + interrupts = < 122 >; + }; + + serial@70006400 { + compatible = "nvidia,tegra20-uart"; + reg = <0x70006400 0x100>; + reg-shift = <2>; + interrupts = < 123 >; + }; + + sdhci@c8000000 { + compatible = "nvidia,tegra20-sdhci"; + reg = <0xc8000000 0x200>; + interrupts = < 46 >; + }; + + sdhci@c8000200 { + compatible = "nvidia,tegra20-sdhci"; + reg = <0xc8000200 0x200>; + interrupts = < 47 >; + }; + + sdhci@c8000400 { + compatible = "nvidia,tegra20-sdhci"; + reg = <0xc8000400 0x200>; + interrupts = < 51 >; + }; + + sdhci@c8000600 { + compatible = "nvidia,tegra20-sdhci"; + reg = <0xc8000600 0x200>; + interrupts = < 63 >; + }; +}; + diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig index 5ec1846..4b8abf9 100644 --- a/arch/arm/mach-tegra/Kconfig +++ b/arch/arm/mach-tegra/Kconfig @@ -51,6 +51,12 @@ config MACH_SEABOARD also be included for some of the derivative boards that have large similarities with the seaboard design. +config MACH_TEGRA_DT + bool "Generic Tegra board (FDT support)" + select USE_OF + help + Support for generic nVidia Tegra boards using Flattened Device Tree + config MACH_TRIMSLICE bool "TrimSlice board" select TEGRA_PCI diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile index ed58ef9..f11b910 100644 --- a/arch/arm/mach-tegra/Makefile +++ b/arch/arm/mach-tegra/Makefile @@ -29,5 +29,8 @@ obj-${CONFIG_MACH_PAZ00} += board-paz00-pinmux.o obj-${CONFIG_MACH_SEABOARD} += board-seaboard.o obj-${CONFIG_MACH_SEABOARD} += board-seaboard-pinmux.o +obj-${CONFIG_MACH_TEGRA_DT} += board-dt.o +obj-${CONFIG_MACH_TEGRA_DT} += board-harmony-pinmux.o + obj-${CONFIG_MACH_TRIMSLICE} += board-trimslice.o obj-${CONFIG_MACH_TRIMSLICE} += board-trimslice-pinmux.o diff --git a/arch/arm/mach-tegra/Makefile.boot b/arch/arm/mach-tegra/Makefile.boot index db52d61..428ad12 100644 --- a/arch/arm/mach-tegra/Makefile.boot +++ b/arch/arm/mach-tegra/Makefile.boot @@ -1,3 +1,6 @@ zreladdr-$(CONFIG_ARCH_TEGRA_2x_SOC) := 0x00008000 params_phys-$(CONFIG_ARCH_TEGRA_2x_SOC) := 0x00000100 initrd_phys-$(CONFIG_ARCH_TEGRA_2x_SOC) := 0x00800000 + +dtb-$(CONFIG_MACH_HARMONY) += tegra-harmony.dtb +dtb-$(CONFIG_MACH_SEABOARD) += tegra-seaboard.dtb diff --git a/arch/arm/mach-tegra/board-dt.c b/arch/arm/mach-tegra/board-dt.c new file mode 100644 index 0000000..9f47e04 --- /dev/null +++ b/arch/arm/mach-tegra/board-dt.c @@ -0,0 +1,119 @@ +/* + * nVidia Tegra device tree board support + * + * Copyright (C) 2010 Secret Lab Technologies, Ltd. + * Copyright (C) 2010 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include + +#include "board.h" +#include "board-harmony.h" +#include "clock.h" +#include "devices.h" + +void harmony_pinmux_init(void); +void seaboard_pinmux_init(void); + + +struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = { + OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC1_BASE, "sdhci-tegra.0", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC2_BASE, "sdhci-tegra.1", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC3_BASE, "sdhci-tegra.2", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC4_BASE, "sdhci-tegra.3", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C_BASE, "tegra-i2c.0", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C2_BASE, "tegra-i2c.1", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C3_BASE, "tegra-i2c.2", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_DVC_BASE, "tegra-i2c.3", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S1_BASE, "tegra-i2s.0", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S1_BASE, "tegra-i2s.1", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-das", TEGRA_APB_MISC_DAS_BASE, "tegra-das", NULL), + {} +}; + +static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = { + /* name parent rate enabled */ + { "uartd", "pll_p", 216000000, true }, + { NULL, NULL, 0, 0}, +}; + +static struct of_device_id tegra_dt_match_table[] __initdata = { + { .compatible = "simple-bus", }, + {} +}; + +static struct of_device_id tegra_dt_gic_match[] __initdata = { + { .compatible = "nvidia,tegra20-gic", }, + {} +}; + +static void __init tegra_dt_init(void) +{ + struct device_node *node; + + node = of_find_matching_node_by_address(NULL, tegra_dt_gic_match, + TEGRA_ARM_INT_DIST_BASE); + if (node) + irq_domain_add_simple(node, INT_GIC_BASE); + + tegra_clk_init_from_table(tegra_dt_clk_init_table); + + if (of_machine_is_compatible("nvidia,harmony")) + harmony_pinmux_init(); + else if (of_machine_is_compatible("nvidia,seaboard")) + seaboard_pinmux_init(); + + /* + * Finished with the static registrations now; fill in the missing + * devices + */ + of_platform_populate(NULL, tegra_dt_match_table, tegra20_auxdata_lookup, NULL); +} + +static const char * tegra_dt_board_compat[] = { + "nvidia,harmony", + "nvidia,seaboard", + NULL +}; + +DT_MACHINE_START(TEGRA_DT, "nVidia Tegra (Flattened Device Tree)") + .map_io = tegra_map_common_io, + .init_early = tegra_init_early, + .init_irq = tegra_init_irq, + .timer = &tegra_timer, + .init_machine = tegra_dt_init, + .dt_compat = tegra_dt_board_compat, +MACHINE_END -- 2.7.4