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 <grant.likely@secretlab.ca>
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 @@
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-${CONFIG_MACH_SEABOARD} += board-seaboard.o
obj-${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 <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/irqdomain.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_fdt.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/pda_power.h>
+#include <linux/io.h>
+#include <linux/i2c.h>
+#include <linux/i2c-tegra.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <asm/setup.h>
+
+#include <mach/iomap.h>
+#include <mach/irqs.h>
+
+#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