1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (c) 2014-2023, NVIDIA CORPORATION.  All rights reserved.
112 		return -EPROBE_DEFER;  in tegra194_miscreg_mask_serror()
116 		return -EOPNOTSUPP;  in tegra194_miscreg_mask_serror()
127 	{ .compatible = "nvidia,tegra20-apbmisc", },
128 	{ .compatible = "nvidia,tegra186-misc", },
129 	{ .compatible = "nvidia,tegra194-misc", },
130 	{ .compatible = "nvidia,tegra234-misc", },
149 		if (chip_id == TEGRA20 && (tegra_fuse_read_spare(18) ||  in tegra_init_revision()
166 static void tegra_init_apbmisc_resources(struct resource *apbmisc,  in tegra_init_apbmisc_resources()  argument
171 	apbmisc_base = ioremap(apbmisc->start, resource_size(apbmisc));  in tegra_init_apbmisc_resources()
175 		pr_err("failed to map APBMISC registers\n");  in tegra_init_apbmisc_resources()
177 	strapping_base = ioremap(straps->start, resource_size(straps));  in tegra_init_apbmisc_resources()
187  * tegra_init_apbmisc - Initializes Tegra APBMISC and Strapping registers.
189  * This is called during early init as some of the old 32-bit ARM code needs
190  * information from the APBMISC registers very early during boot.
194 	struct resource apbmisc, straps;  in tegra_init_apbmisc()  local
200 		 * Fall back to legacy initialization for 32-bit ARM only. All  in tegra_init_apbmisc()
201 		 * 64-bit ARM device tree files for Tegra are required to have  in tegra_init_apbmisc()
202 		 * an APBMISC node.  in tegra_init_apbmisc()
204 		 * This is for backwards-compatibility with old device trees  in tegra_init_apbmisc()
205 		 * that didn't contain an APBMISC node.  in tegra_init_apbmisc()
208 			/* APBMISC registers (chip revision, ...) */  in tegra_init_apbmisc()
209 			apbmisc.start = 0x70000800;  in tegra_init_apbmisc()
210 			apbmisc.end = 0x70000863;  in tegra_init_apbmisc()
211 			apbmisc.flags = IORESOURCE_MEM;  in tegra_init_apbmisc()
224 			pr_warn("Using APBMISC region %pR\n", &apbmisc);  in tegra_init_apbmisc()
230 			 * nice with multi-platform kernels.  in tegra_init_apbmisc()
239 		if (of_address_to_resource(np, 0, &apbmisc) < 0) {  in tegra_init_apbmisc()
240 			pr_err("failed to get APBMISC registers\n");  in tegra_init_apbmisc()
250 	tegra_init_apbmisc_resources(&apbmisc, &straps);  in tegra_init_apbmisc()
251 	long_ram_code = of_property_read_bool(np, "nvidia,long-ram-code");  in tegra_init_apbmisc()
272 	adev = acpi_dev_get_first_match_dev(apbmisc_acpi_match[0].id, NULL, -1);  in tegra_acpi_init_apbmisc()
280 		pr_err("failed to get APBMISC memory resources");  in tegra_acpi_init_apbmisc()
287 	 * resources[0]: apbmisc.  in tegra_acpi_init_apbmisc()
294 		resources[rcount++] = rentry->res;  in tegra_acpi_init_apbmisc()
298 		pr_err("failed to get APBMISC registers\n");  in tegra_acpi_init_apbmisc()