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Diffstat (limited to 'arch/arm/mach-tegra/board-dt-tegra20.c')
-rw-r--r--arch/arm/mach-tegra/board-dt-tegra20.c151
1 files changed, 151 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-dt-tegra20.c b/arch/arm/mach-tegra/board-dt-tegra20.c
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index 00000000000..7a95e0bc4ab
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+++ b/arch/arm/mach-tegra/board-dt-tegra20.c
@@ -0,0 +1,151 @@
+/*
+ * 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/hardware/gic.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <asm/setup.h>
+#include <asm/hardware/gic.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 paz00_pinmux_init(void);
+void seaboard_pinmux_init(void);
+void trimslice_pinmux_init(void);
+void ventana_pinmux_init(void);
+
+struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = {
+ OF_DEV_AUXDATA("nvidia,tegra20-pinmux", TEGRA_APB_MISC_BASE + 0x14, "tegra-pinmux", NULL),
+ OF_DEV_AUXDATA("nvidia,tegra20-gpio", TEGRA_GPIO_BASE, "tegra-gpio", NULL),
+ 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-dvc", 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_I2S2_BASE, "tegra-i2s.1", NULL),
+ OF_DEV_AUXDATA("nvidia,tegra20-das", TEGRA_APB_MISC_DAS_BASE, "tegra-das", NULL),
+ OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB_BASE, "tegra-ehci.0",
+ &tegra_ehci1_device.dev.platform_data),
+ OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB2_BASE, "tegra-ehci.1",
+ &tegra_ehci2_device.dev.platform_data),
+ OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB3_BASE, "tegra-ehci.2",
+ &tegra_ehci3_device.dev.platform_data),
+ {}
+};
+
+static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = {
+ /* name parent rate enabled */
+ { "uartd", "pll_p", 216000000, true },
+ { "usbd", "clk_m", 12000000, false },
+ { "usb2", "clk_m", 12000000, false },
+ { "usb3", "clk_m", 12000000, false },
+ { "pll_a", "pll_p_out1", 56448000, true },
+ { "pll_a_out0", "pll_a", 11289600, true },
+ { "cdev1", NULL, 0, true },
+ { "i2s1", "pll_a_out0", 11289600, false},
+ { "i2s2", "pll_a_out0", 11289600, false},
+ { NULL, NULL, 0, 0},
+};
+
+static struct of_device_id tegra_dt_match_table[] __initdata = {
+ { .compatible = "simple-bus", },
+ {}
+};
+
+static struct {
+ char *machine;
+ void (*init)(void);
+} pinmux_configs[] = {
+ { "compulab,trimslice", trimslice_pinmux_init },
+ { "nvidia,harmony", harmony_pinmux_init },
+ { "compal,paz00", paz00_pinmux_init },
+ { "nvidia,seaboard", seaboard_pinmux_init },
+ { "nvidia,ventana", ventana_pinmux_init },
+};
+
+static void __init tegra_dt_init(void)
+{
+ int i;
+
+ tegra_clk_init_from_table(tegra_dt_clk_init_table);
+
+ for (i = 0; i < ARRAY_SIZE(pinmux_configs); i++) {
+ if (of_machine_is_compatible(pinmux_configs[i].machine)) {
+ pinmux_configs[i].init();
+ break;
+ }
+ }
+
+ WARN(i == ARRAY_SIZE(pinmux_configs),
+ "Unknown platform! Pinmuxing not initialized\n");
+
+ /*
+ * 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 *tegra20_dt_board_compat[] = {
+ "compulab,trimslice",
+ "nvidia,harmony",
+ "compal,paz00",
+ "nvidia,seaboard",
+ "nvidia,ventana",
+ NULL
+};
+
+DT_MACHINE_START(TEGRA_DT, "nVidia Tegra20 (Flattened Device Tree)")
+ .map_io = tegra_map_common_io,
+ .init_early = tegra20_init_early,
+ .init_irq = tegra_dt_init_irq,
+ .handle_irq = gic_handle_irq,
+ .timer = &tegra_timer,
+ .init_machine = tegra_dt_init,
+ .restart = tegra_assert_system_reset,
+ .dt_compat = tegra20_dt_board_compat,
+MACHINE_END