1 files changed, 120 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
new file mode 100644
index 0000000000..9ef1dfa7b9
--- /dev/null
+++ b/arch/arm/mach-tegra/tegra.c
@@ -0,0 +1,120 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * NVIDIA Tegra SoC device tree board support
+ *
+ * Copyright (C) 2011, 2013, NVIDIA Corporation
+ * Copyright (C) 2010 Secret Lab Technologies, Ltd.
+ * Copyright (C) 2010 Google, Inc.
+ */
+
+#include <linux/clk.h>
+#include <linux/clk/tegra.h>
+#include <linux/dma-mapping.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/irqchip.h>
+#include <linux/irqdomain.h>
+#include <linux/kernel.h>
+#include <linux/of_address.h>
+#include <linux/of_fdt.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+#include <linux/slab.h>
+#include <linux/sys_soc.h>
+#include <linux/usb/tegra_usb_phy.h>
+
+#include <linux/firmware/trusted_foundations.h>
+
+#include <soc/tegra/fuse.h>
+#include <soc/tegra/pmc.h>
+
+#include <asm/firmware.h>
+#include <asm/hardware/cache-l2x0.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <asm/mach-types.h>
+#include <asm/psci.h>
+#include <asm/setup.h>
+
+#include "board.h"
+#include "common.h"
+#include "iomap.h"
+#include "pm.h"
+#include "reset.h"
+#include "sleep.h"
+
+/*
+ * Storage for debug-macro.S's state.
+ *
+ * This must be in .data not .bss so that it gets initialized each time the
+ * kernel is loaded. The data is declared here rather than debug-macro.S so
+ * that multiple inclusions of debug-macro.S point at the same data.
+ */
+u32 tegra_uart_config[3] = {
+	/* Debug UART initialization required */
+	1,
+	/* Debug UART physical address */
+	0,
+	/* Debug UART virtual address */
+	0,
+};
+
+static void __init tegra_init_early(void)
+{
+	of_register_trusted_foundations();
+	tegra_cpu_reset_handler_init();
+	call_firmware_op(l2x0_init);
+}
+
+static void __init tegra_dt_init_irq(void)
+{
+	tegra_init_irq();
+	irqchip_init();
+}
+
+static void __init tegra_dt_init(void)
+{
+	struct device *parent = tegra_soc_device_register();
+
+	of_platform_default_populate(NULL, NULL, parent);
+}
+
+static void __init tegra_dt_init_late(void)
+{
+	if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC) &&
+	    of_machine_is_compatible("compal,paz00"))
+		tegra_paz00_wifikill_init();
+
+	if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC) &&
+	    of_machine_is_compatible("nvidia,tegra20"))
+		platform_device_register_simple("tegra20-cpufreq", -1, NULL, 0);
+
+	if (IS_ENABLED(CONFIG_ARM_TEGRA_CPUIDLE) && !psci_smp_available())
+		platform_device_register_simple("tegra-cpuidle", -1, NULL, 0);
+
+	if (IS_ENABLED(CONFIG_ARCH_TEGRA_3x_SOC) &&
+	    of_machine_is_compatible("nvidia,tegra30"))
+		platform_device_register_simple("tegra20-cpufreq", -1, NULL, 0);
+}
+
+static const char * const tegra_dt_board_compat[] = {
+	"nvidia,tegra124",
+	"nvidia,tegra114",
+	"nvidia,tegra30",
+	"nvidia,tegra20",
+	NULL
+};
+
+DT_MACHINE_START(TEGRA_DT, "NVIDIA Tegra SoC (Flattened Device Tree)")
+	.l2c_aux_val	= 0x3c400000,
+	.l2c_aux_mask	= 0xc20fc3ff,
+	.smp		= smp_ops(tegra_smp_ops),
+	.map_io		= tegra_map_common_io,
+	.init_early	= tegra_init_early,
+	.init_irq	= tegra_dt_init_irq,
+	.init_machine	= tegra_dt_init,
+	.init_late	= tegra_dt_init_late,
+	.dt_compat	= tegra_dt_board_compat,
+MACHINE_END