GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/arch/arm/mach-tegra/dt-setup.c

@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2010-2016, NVIDIA CORPORATION.
+ */
+
+#include <common.h>
+#include <asm/arch-tegra/gpu.h>
+
+/*
+ * This function is called right before the kernel is booted. "blob" is the
+ * device tree that will be passed to the kernel.
+ */
+int ft_system_setup(void *blob, bd_t *bd)
+{
+	const char *gpu_compats[] = {
+#if defined(CONFIG_TEGRA124)
+		"nvidia,gk20a",
+#endif
+#if defined(CONFIG_TEGRA210)
+		"nvidia,gm20b",
+#endif
+	};
+	int i, ret;
+
+	/* Enable GPU node if GPU setup has been performed */
+	for (i = 0; i < ARRAY_SIZE(gpu_compats); i++) {
+		ret = tegra_gpu_enable_node(blob, gpu_compats[i]);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}