drivers: Remove 'private' directories

Drivers in the NVIDIA OOT repository are public and so remove the
directories named 'private' to avoid any confusion once these sources
are released.

Bug 5054840

Change-Id: I9156e3b08df9ce3d90dc0a2b5e72416f28fac5f5
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3351272
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Ashish Mhetre <amhetre@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>

drivers/memory/tegra/mc-t26x.c

@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2023-2024 NVIDIA CORPORATION.  All rights reserved.
+
+#define pr_fmt(fmt) "mc: " fmt
+
+#include <nvidia/conftest.h>
+
+#include <linux/module.h>
+#include <linux/export.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+#include <soc/tegra/mc-t26x.h>
+
+#define MC_SECURITY_CARVEOUT_BASE 0xa004
+#define MC_CARVEOUT_NEXT 0xa0
+#define MC_SECURITY_CARVEOUT_LITE_BASE 0xb404
+#define MC_CARVEOUT_LITE_NEXT 0x60
+#define MC_CARVEOUT_BASE_HI 0x4
+#define MC_SECURITY_CARVEOUT_SIZE_128KB 0x8
+
+static void __iomem *mcb_base;
+
+static inline u32 mc_readl(unsigned long offset)
+{
+	return readl_relaxed(mcb_base + offset);
+}
+
+int tegra264_mc_get_carveout_info(unsigned int id, phys_addr_t *base, u64 *size)
+{
+	u32 offset;
+
+	if (id < 1 || id > 42)
+		return -EINVAL;
+	if (id < 32)
+		offset = MC_SECURITY_CARVEOUT_BASE + MC_CARVEOUT_NEXT * (id - 1);
+	else
+		offset = MC_SECURITY_CARVEOUT_LITE_BASE + MC_CARVEOUT_LITE_NEXT * (id - 32);
+	*base = mc_readl(offset + 0x0);
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+	*base |= (phys_addr_t)mc_readl(offset + MC_CARVEOUT_BASE_HI) << 32;
+#endif
+	if (size)
+		*size = (u64)mc_readl(offset + MC_SECURITY_CARVEOUT_SIZE_128KB) << 17;
+	return 0;
+}
+EXPORT_SYMBOL(tegra264_mc_get_carveout_info);
+
+const struct of_device_id tegra_mc_of_ids[] = {
+	{ .compatible = "nvidia,tegra-t26x-mc" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, tegra_mc_of_ids);
+
+static int tegra_mc_probe(struct platform_device *pdev)
+{
+	struct resource *r;
+
+	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!r)
+		return PTR_ERR(r);
+
+	mcb_base = ioremap(r->start, resource_size(r));
+	if (IS_ERR_OR_NULL(mcb_base))
+		return PTR_ERR(mcb_base);
+	return 0;
+}
+
+static void tegra_mc_remove(struct platform_device *pdev)
+{
+	iounmap(mcb_base);
+}
+
+#if defined(NV_PLATFORM_DRIVER_STRUCT_REMOVE_RETURNS_VOID) /* Linux v6.11 */
+static void tegra_mc_remove_wrapper(struct platform_device *pdev)
+{
+	tegra_mc_remove(pdev);
+}
+#else
+static int tegra_mc_remove_wrapper(struct platform_device *pdev)
+{
+	tegra_mc_remove(pdev);
+	return 0;
+}
+#endif
+
+static struct platform_driver mc_driver = {
+	.driver = {
+		.name	= "nv-tegra-t26x-mc",
+		.of_match_table = tegra_mc_of_ids,
+		.owner	= THIS_MODULE,
+	},
+	.remove = tegra_mc_remove_wrapper,
+};
+
+module_platform_driver_probe(mc_driver, tegra_mc_probe);
+
+MODULE_AUTHOR("Ashish Mhetre <amhetre@nvidia.com>");
+MODULE_DESCRIPTION("NVIDIA Tegra Memory Controller driver");
+MODULE_LICENSE("GPL v2");