1 files changed, 0 insertions, 278 deletions
diff --git a/drivers/firmware/efi/arm-stub.c b/drivers/firmware/efi/arm-stub.c
deleted file mode 100644
index 41114ce03b01..000000000000
--- a/drivers/firmware/efi/arm-stub.c
+++ /dev/null
@@ -1,278 +0,0 @@
-/*
- * EFI stub implementation that is shared by arm and arm64 architectures.
- * This should be #included by the EFI stub implementation files.
- *
- * Copyright (C) 2013,2014 Linaro Limited
- *     Roy Franz <roy.franz@linaro.org
- * Copyright (C) 2013 Red Hat, Inc.
- *     Mark Salter <msalter@redhat.com>
- *
- * This file is part of the Linux kernel, and is made available under the
- * terms of the GNU General Public License version 2.
- *
- */
-
-static int __init efi_secureboot_enabled(efi_system_table_t *sys_table_arg)
-{
-	static efi_guid_t const var_guid __initconst = EFI_GLOBAL_VARIABLE_GUID;
-	static efi_char16_t const var_name[] __initconst = {
-		'S', 'e', 'c', 'u', 'r', 'e', 'B', 'o', 'o', 't', 0 };
-
-	efi_get_variable_t *f_getvar = sys_table_arg->runtime->get_variable;
-	unsigned long size = sizeof(u8);
-	efi_status_t status;
-	u8 val;
-
-	status = f_getvar((efi_char16_t *)var_name, (efi_guid_t *)&var_guid,
-			  NULL, &size, &val);
-
-	switch (status) {
-	case EFI_SUCCESS:
-		return val;
-	case EFI_NOT_FOUND:
-		return 0;
-	default:
-		return 1;
-	}
-}
-
-static efi_status_t efi_open_volume(efi_system_table_t *sys_table_arg,
-				    void *__image, void **__fh)
-{
-	efi_file_io_interface_t *io;
-	efi_loaded_image_t *image = __image;
-	efi_file_handle_t *fh;
-	efi_guid_t fs_proto = EFI_FILE_SYSTEM_GUID;
-	efi_status_t status;
-	void *handle = (void *)(unsigned long)image->device_handle;
-
-	status = sys_table_arg->boottime->handle_protocol(handle,
-				 &fs_proto, (void **)&io);
-	if (status != EFI_SUCCESS) {
-		efi_printk(sys_table_arg, "Failed to handle fs_proto\n");
-		return status;
-	}
-
-	status = io->open_volume(io, &fh);
-	if (status != EFI_SUCCESS)
-		efi_printk(sys_table_arg, "Failed to open volume\n");
-
-	*__fh = fh;
-	return status;
-}
-static efi_status_t efi_file_close(void *handle)
-{
-	efi_file_handle_t *fh = handle;
-
-	return fh->close(handle);
-}
-
-static efi_status_t
-efi_file_read(void *handle, unsigned long *size, void *addr)
-{
-	efi_file_handle_t *fh = handle;
-
-	return fh->read(handle, size, addr);
-}
-
-
-static efi_status_t
-efi_file_size(efi_system_table_t *sys_table_arg, void *__fh,
-	      efi_char16_t *filename_16, void **handle, u64 *file_sz)
-{
-	efi_file_handle_t *h, *fh = __fh;
-	efi_file_info_t *info;
-	efi_status_t status;
-	efi_guid_t info_guid = EFI_FILE_INFO_ID;
-	unsigned long info_sz;
-
-	status = fh->open(fh, &h, filename_16, EFI_FILE_MODE_READ, (u64)0);
-	if (status != EFI_SUCCESS) {
-		efi_printk(sys_table_arg, "Failed to open file: ");
-		efi_char16_printk(sys_table_arg, filename_16);
-		efi_printk(sys_table_arg, "\n");
-		return status;
-	}
-
-	*handle = h;
-
-	info_sz = 0;
-	status = h->get_info(h, &info_guid, &info_sz, NULL);
-	if (status != EFI_BUFFER_TOO_SMALL) {
-		efi_printk(sys_table_arg, "Failed to get file info size\n");
-		return status;
-	}
-
-grow:
-	status = sys_table_arg->boottime->allocate_pool(EFI_LOADER_DATA,
-				 info_sz, (void **)&info);
-	if (status != EFI_SUCCESS) {
-		efi_printk(sys_table_arg, "Failed to alloc mem for file info\n");
-		return status;
-	}
-
-	status = h->get_info(h, &info_guid, &info_sz,
-						   info);
-	if (status == EFI_BUFFER_TOO_SMALL) {
-		sys_table_arg->boottime->free_pool(info);
-		goto grow;
-	}
-
-	*file_sz = info->file_size;
-	sys_table_arg->boottime->free_pool(info);
-
-	if (status != EFI_SUCCESS)
-		efi_printk(sys_table_arg, "Failed to get initrd info\n");
-
-	return status;
-}
-
-
-
-static void efi_char16_printk(efi_system_table_t *sys_table_arg,
-			      efi_char16_t *str)
-{
-	struct efi_simple_text_output_protocol *out;
-
-	out = (struct efi_simple_text_output_protocol *)sys_table_arg->con_out;
-	out->output_string(out, str);
-}
-
-
-/*
- * This function handles the architcture specific differences between arm and
- * arm64 regarding where the kernel image must be loaded and any memory that
- * must be reserved. On failure it is required to free all
- * all allocations it has made.
- */
-static efi_status_t handle_kernel_image(efi_system_table_t *sys_table,
-					unsigned long *image_addr,
-					unsigned long *image_size,
-					unsigned long *reserve_addr,
-					unsigned long *reserve_size,
-					unsigned long dram_base,
-					efi_loaded_image_t *image);
-/*
- * EFI entry point for the arm/arm64 EFI stubs.  This is the entrypoint
- * that is described in the PE/COFF header.  Most of the code is the same
- * for both archictectures, with the arch-specific code provided in the
- * handle_kernel_image() function.
- */
-unsigned long __init efi_entry(void *handle, efi_system_table_t *sys_table,
-			       unsigned long *image_addr)
-{
-	efi_loaded_image_t *image;
-	efi_status_t status;
-	unsigned long image_size = 0;
-	unsigned long dram_base;
-	/* addr/point and size pairs for memory management*/
-	unsigned long initrd_addr;
-	u64 initrd_size = 0;
-	unsigned long fdt_addr = 0;  /* Original DTB */
-	u64 fdt_size = 0;  /* We don't get size from configuration table */
-	char *cmdline_ptr = NULL;
-	int cmdline_size = 0;
-	unsigned long new_fdt_addr;
-	efi_guid_t loaded_image_proto = LOADED_IMAGE_PROTOCOL_GUID;
-	unsigned long reserve_addr = 0;
-	unsigned long reserve_size = 0;
-
-	/* Check if we were booted by the EFI firmware */
-	if (sys_table->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE)
-		goto fail;
-
-	pr_efi(sys_table, "Booting Linux Kernel...\n");
-
-	/*
-	 * Get a handle to the loaded image protocol.  This is used to get
-	 * information about the running image, such as size and the command
-	 * line.
-	 */
-	status = sys_table->boottime->handle_protocol(handle,
-					&loaded_image_proto, (void *)&image);
-	if (status != EFI_SUCCESS) {
-		pr_efi_err(sys_table, "Failed to get loaded image protocol\n");
-		goto fail;
-	}
-
-	dram_base = get_dram_base(sys_table);
-	if (dram_base == EFI_ERROR) {
-		pr_efi_err(sys_table, "Failed to find DRAM base\n");
-		goto fail;
-	}
-	status = handle_kernel_image(sys_table, image_addr, &image_size,
-				     &reserve_addr,
-				     &reserve_size,
-				     dram_base, image);
-	if (status != EFI_SUCCESS) {
-		pr_efi_err(sys_table, "Failed to relocate kernel\n");
-		goto fail;
-	}
-
-	/*
-	 * Get the command line from EFI, using the LOADED_IMAGE
-	 * protocol. We are going to copy the command line into the
-	 * device tree, so this can be allocated anywhere.
-	 */
-	cmdline_ptr = efi_convert_cmdline(sys_table, image, &cmdline_size);
-	if (!cmdline_ptr) {
-		pr_efi_err(sys_table, "getting command line via LOADED_IMAGE_PROTOCOL\n");
-		goto fail_free_image;
-	}
-
-	/*
-	 * Unauthenticated device tree data is a security hazard, so
-	 * ignore 'dtb=' unless UEFI Secure Boot is disabled.
-	 */
-	if (efi_secureboot_enabled(sys_table)) {
-		pr_efi(sys_table, "UEFI Secure Boot is enabled.\n");
-	} else {
-		status = handle_cmdline_files(sys_table, image, cmdline_ptr,
-					      "dtb=",
-					      ~0UL, (unsigned long *)&fdt_addr,
-					      (unsigned long *)&fdt_size);
-
-		if (status != EFI_SUCCESS) {
-			pr_efi_err(sys_table, "Failed to load device tree!\n");
-			goto fail_free_cmdline;
-		}
-	}
-	if (!fdt_addr)
-		/* Look for a device tree configuration table entry. */
-		fdt_addr = (uintptr_t)get_fdt(sys_table);
-
-	status = handle_cmdline_files(sys_table, image, cmdline_ptr,
-				      "initrd=", dram_base + SZ_512M,
-				      (unsigned long *)&initrd_addr,
-				      (unsigned long *)&initrd_size);
-	if (status != EFI_SUCCESS)
-		pr_efi_err(sys_table, "Failed initrd from command line!\n");
-
-	new_fdt_addr = fdt_addr;
-	status = allocate_new_fdt_and_exit_boot(sys_table, handle,
-				&new_fdt_addr, dram_base + MAX_FDT_OFFSET,
-				initrd_addr, initrd_size, cmdline_ptr,
-				fdt_addr, fdt_size);
-
-	/*
-	 * If all went well, we need to return the FDT address to the
-	 * calling function so it can be passed to kernel as part of
-	 * the kernel boot protocol.
-	 */
-	if (status == EFI_SUCCESS)
-		return new_fdt_addr;
-
-	pr_efi_err(sys_table, "Failed to update FDT and exit boot services\n");
-
-	efi_free(sys_table, initrd_size, initrd_addr);
-	efi_free(sys_table, fdt_size, fdt_addr);
-
-fail_free_cmdline:
-	efi_free(sys_table, cmdline_size, (unsigned long)cmdline_ptr);
-
-fail_free_image:
-	efi_free(sys_table, image_size, *image_addr);
-	efi_free(sys_table, reserve_size, reserve_addr);
-fail:
-	return EFI_ERROR;
-}