CONFIG_SYS_PBSIZE=532
CONFIG_SYS_CONSOLE_INFO_QUIET=y
CONFIG_DISPLAY_BOARDINFO_LATE=y
+CONFIG_BOARD_EARLY_INIT_R=y
CONFIG_HUSH_PARSER=y
CONFIG_CMD_BOOTZ=y
CONFIG_CMD_PART=y
#
# (C) Copyright 2015 Google, Inc
-obj-$(CONFIG_EFI_APP) += efi_app.o efi.o
+obj-$(CONFIG_EFI_APP) += efi_app.o efi.o efi_app_init.o
obj-$(CONFIG_EFI_STUB) += efi_info.o
CFLAGS_REMOVE_efi_stub.o := -mregparm=3 \
return 0;
}
-/**
- * efi_bind_block() - bind a new block device to an EFI device
- *
- * Binds a new top-level EFI_MEDIA device as well as a child block device so
- * that the block device can be accessed in U-Boot.
- *
- * The device can then be accessed using 'part list efi 0', 'fat ls efi 0:1',
- * for example, just like any other interface type.
- *
- * @handle: handle of the controller on which this driver is installed
- * @blkio: block io protocol proxied by this driver
- * @device_path: EFI device path structure for this
- * @len: Length of @device_path in bytes
- * @devp: Returns the bound device
- * Return: 0 if OK, -ve on error
- */
-int efi_bind_block(efi_handle_t handle, struct efi_block_io *blkio,
- struct efi_device_path *device_path, int len,
- struct udevice **devp)
-{
- struct efi_media_plat plat;
- struct udevice *dev;
- char name[18];
- int ret;
-
- plat.handle = handle;
- plat.blkio = blkio;
- plat.device_path = malloc(device_path->length);
- if (!plat.device_path)
- return log_msg_ret("path", -ENOMEM);
- memcpy(plat.device_path, device_path, device_path->length);
- ret = device_bind(dm_root(), DM_DRIVER_GET(efi_media), "efi_media",
- &plat, ofnode_null(), &dev);
- if (ret)
- return log_msg_ret("bind", ret);
-
- snprintf(name, sizeof(name), "efi_media_%x", dev_seq(dev));
- device_set_name(dev, name);
- *devp = dev;
-
- return 0;
-}
-
static efi_status_t setup_memory(struct efi_priv *priv)
{
struct efi_boot_services *boot = priv->boot;
global_data_ptr = NULL;
}
-/**
- * devpath_is_partition() - Figure out if a device path is a partition
- *
- * Checks if a device path refers to a partition on some media device. This
- * works by checking for a valid partition number in a hard-driver media device
- * as the final component of the device path.
- *
- * @path: device path
- * Return: true if a partition, false if not
- * (e.g. it might be media which contains partitions)
- */
-static bool devpath_is_partition(const struct efi_device_path *path)
-{
- const struct efi_device_path *p;
- bool was_part = false;
-
- for (p = path; p->type != DEVICE_PATH_TYPE_END;
- p = (void *)p + p->length) {
- was_part = false;
- if (p->type == DEVICE_PATH_TYPE_MEDIA_DEVICE &&
- p->sub_type == DEVICE_PATH_SUB_TYPE_HARD_DRIVE_PATH) {
- struct efi_device_path_hard_drive_path *hd =
- (void *)path;
-
- if (hd->partition_number)
- was_part = true;
- }
- }
-
- return was_part;
-}
-
-/**
- * setup_block() - Find all block devices and setup EFI devices for them
- *
- * Partitions are ignored, since U-Boot has partition handling. Errors with
- * particular devices produce a warning but execution continues to try to
- * find others.
- *
- * Return: 0 if found, -ENOSYS if there is no boot-services table, -ENOTSUPP
- * if a required protocol is not supported
- */
-static int setup_block(void)
-{
- efi_guid_t efi_blkio_guid = EFI_BLOCK_IO_PROTOCOL_GUID;
- efi_guid_t efi_devpath_guid = EFI_DEVICE_PATH_PROTOCOL_GUID;
- efi_guid_t efi_pathutil_guid = EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID;
- efi_guid_t efi_pathtext_guid = EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID;
- struct efi_boot_services *boot = efi_get_boot();
- struct efi_device_path_utilities_protocol *util;
- struct efi_device_path_to_text_protocol *text;
- struct efi_device_path *path;
- struct efi_block_io *blkio;
- efi_uintn_t num_handles;
- efi_handle_t *handle;
- int ret, i;
-
- if (!boot)
- return log_msg_ret("sys", -ENOSYS);
-
- /* Find all devices which support the block I/O protocol */
- ret = boot->locate_handle_buffer(BY_PROTOCOL, &efi_blkio_guid, NULL,
- &num_handles, &handle);
- if (ret)
- return log_msg_ret("loc", -ENOTSUPP);
- log_debug("Found %d handles:\n", (int)num_handles);
-
- /* We need to look up the path size and convert it to text */
- ret = boot->locate_protocol(&efi_pathutil_guid, NULL, (void **)&util);
- if (ret)
- return log_msg_ret("util", -ENOTSUPP);
- ret = boot->locate_protocol(&efi_pathtext_guid, NULL, (void **)&text);
- if (ret)
- return log_msg_ret("text", -ENOTSUPP);
-
- for (i = 0; i < num_handles; i++) {
- struct udevice *dev;
- const u16 *name;
- bool is_part;
- int len;
-
- ret = boot->handle_protocol(handle[i], &efi_devpath_guid,
- (void **)&path);
- if (ret) {
- log_warning("- devpath %d failed (ret=%d)\n", i, ret);
- continue;
- }
-
- ret = boot->handle_protocol(handle[i], &efi_blkio_guid,
- (void **)&blkio);
- if (ret) {
- log_warning("- blkio %d failed (ret=%d)\n", i, ret);
- continue;
- }
-
- name = text->convert_device_path_to_text(path, true, false);
- is_part = devpath_is_partition(path);
-
- if (!is_part) {
- len = util->get_device_path_size(path);
- ret = efi_bind_block(handle[i], blkio, path, len, &dev);
- if (ret) {
- log_warning("- blkio bind %d failed (ret=%d)\n",
- i, ret);
- continue;
- }
- } else {
- dev = NULL;
- }
-
- /*
- * Show the device name if we created one. Otherwise indicate
- * that it is a partition.
- */
- printf("%2d: %-12s %ls\n", i, dev ? dev->name : "<partition>",
- name);
- }
- boot->free_pool(handle);
-
- return 0;
-}
-
-/**
- * dm_scan_other() - Scan for UEFI devices that should be available to U-Boot
- *
- * This sets up block devices within U-Boot for those found in UEFI. With this,
- * U-Boot can access those devices
- *
- * @pre_reloc_only: true to only bind pre-relocation devices (ignored)
- * Returns: 0 on success, -ve on error
- */
-int dm_scan_other(bool pre_reloc_only)
-{
- if (gd->flags & GD_FLG_RELOC) {
- int ret;
-
- ret = setup_block();
- if (ret)
- return ret;
- }
-
- return 0;
-}
-
static void scan_tables(struct efi_system_table *sys_table)
{
efi_guid_t acpi = EFI_ACPI_TABLE_GUID;
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * EFI-app board implementation
+ *
+ * Copyright 2023 Google LLC
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <dm.h>
+#include <efi.h>
+#include <efi_api.h>
+#include <errno.h>
+#include <malloc.h>
+#include <asm/global_data.h>
+#include <dm/device-internal.h>
+#include <dm/root.h>
+#include <linux/types.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/**
+ * efi_bind_block() - bind a new block device to an EFI device
+ *
+ * Binds a new top-level EFI_MEDIA device as well as a child block device so
+ * that the block device can be accessed in U-Boot.
+ *
+ * The device can then be accessed using 'part list efi 0', 'fat ls efi 0:1',
+ * for example, just like any other interface type.
+ *
+ * @handle: handle of the controller on which this driver is installed
+ * @blkio: block io protocol proxied by this driver
+ * @device_path: EFI device path structure for this
+ * @len: Length of @device_path in bytes
+ * @devp: Returns the bound device
+ * Return: 0 if OK, -ve on error
+ */
+int efi_bind_block(efi_handle_t handle, struct efi_block_io *blkio,
+ struct efi_device_path *device_path, int len,
+ struct udevice **devp)
+{
+ struct efi_media_plat plat;
+ struct udevice *dev;
+ char name[18];
+ int ret;
+
+ plat.handle = handle;
+ plat.blkio = blkio;
+ plat.device_path = malloc(device_path->length);
+ if (!plat.device_path)
+ return log_msg_ret("path", -ENOMEM);
+ memcpy(plat.device_path, device_path, device_path->length);
+ ret = device_bind(dm_root(), DM_DRIVER_GET(efi_media), "efi_media",
+ &plat, ofnode_null(), &dev);
+ if (ret)
+ return log_msg_ret("bind", ret);
+
+ snprintf(name, sizeof(name), "efi_media_%x", dev_seq(dev));
+ device_set_name(dev, name);
+ *devp = dev;
+
+ return 0;
+}
+
+/**
+ * devpath_is_partition() - Figure out if a device path is a partition
+ *
+ * Checks if a device path refers to a partition on some media device. This
+ * works by checking for a valid partition number in a hard-driver media device
+ * as the final component of the device path.
+ *
+ * @path: device path
+ * Return: true if a partition, false if not
+ * (e.g. it might be media which contains partitions)
+ */
+static bool devpath_is_partition(const struct efi_device_path *path)
+{
+ const struct efi_device_path *p;
+ bool was_part = false;
+
+ for (p = path; p->type != DEVICE_PATH_TYPE_END;
+ p = (void *)p + p->length) {
+ was_part = false;
+ if (p->type == DEVICE_PATH_TYPE_MEDIA_DEVICE &&
+ p->sub_type == DEVICE_PATH_SUB_TYPE_HARD_DRIVE_PATH) {
+ struct efi_device_path_hard_drive_path *hd =
+ (void *)path;
+
+ if (hd->partition_number)
+ was_part = true;
+ }
+ }
+
+ return was_part;
+}
+
+/**
+ * setup_block() - Find all block devices and setup EFI devices for them
+ *
+ * Partitions are ignored, since U-Boot has partition handling. Errors with
+ * particular devices produce a warning but execution continues to try to
+ * find others.
+ *
+ * Return: 0 if found, -ENOSYS if there is no boot-services table, -ENOTSUPP
+ * if a required protocol is not supported
+ */
+static int setup_block(void)
+{
+ efi_guid_t efi_blkio_guid = EFI_BLOCK_IO_PROTOCOL_GUID;
+ efi_guid_t efi_devpath_guid = EFI_DEVICE_PATH_PROTOCOL_GUID;
+ efi_guid_t efi_pathutil_guid = EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID;
+ efi_guid_t efi_pathtext_guid = EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID;
+ struct efi_boot_services *boot = efi_get_boot();
+ struct efi_device_path_utilities_protocol *util;
+ struct efi_device_path_to_text_protocol *text;
+ struct efi_device_path *path;
+ struct efi_block_io *blkio;
+ efi_uintn_t num_handles;
+ efi_handle_t *handle;
+ int ret, i;
+
+ if (!boot)
+ return log_msg_ret("sys", -ENOSYS);
+
+ /* Find all devices which support the block I/O protocol */
+ ret = boot->locate_handle_buffer(BY_PROTOCOL, &efi_blkio_guid, NULL,
+ &num_handles, &handle);
+ if (ret)
+ return log_msg_ret("loc", -ENOTSUPP);
+ log_debug("Found %d handles:\n", (int)num_handles);
+
+ /* We need to look up the path size and convert it to text */
+ ret = boot->locate_protocol(&efi_pathutil_guid, NULL, (void **)&util);
+ if (ret)
+ return log_msg_ret("util", -ENOTSUPP);
+ ret = boot->locate_protocol(&efi_pathtext_guid, NULL, (void **)&text);
+ if (ret)
+ return log_msg_ret("text", -ENOTSUPP);
+
+ for (i = 0; i < num_handles; i++) {
+ struct udevice *dev;
+ const u16 *name;
+ bool is_part;
+ int len;
+
+ ret = boot->handle_protocol(handle[i], &efi_devpath_guid,
+ (void **)&path);
+ if (ret) {
+ log_warning("- devpath %d failed (ret=%d)\n", i, ret);
+ continue;
+ }
+
+ ret = boot->handle_protocol(handle[i], &efi_blkio_guid,
+ (void **)&blkio);
+ if (ret) {
+ log_warning("- blkio %d failed (ret=%d)\n", i, ret);
+ continue;
+ }
+
+ name = text->convert_device_path_to_text(path, true, false);
+ is_part = devpath_is_partition(path);
+
+ if (!is_part) {
+ len = util->get_device_path_size(path);
+ ret = efi_bind_block(handle[i], blkio, path, len, &dev);
+ if (ret) {
+ log_warning("- blkio bind %d failed (ret=%d)\n",
+ i, ret);
+ continue;
+ }
+ } else {
+ dev = NULL;
+ }
+
+ /*
+ * Show the device name if we created one. Otherwise indicate
+ * that it is a partition.
+ */
+ printf("%2d: %-12s %ls\n", i, dev ? dev->name : "<partition>",
+ name);
+ }
+ boot->free_pool(handle);
+
+ return 0;
+}
+
+/**
+ * board_early_init_r() - Scan for UEFI devices that should be available
+ *
+ * This sets up block devices within U-Boot for those found in UEFI. With this,
+ * U-Boot can access those devices
+ *
+ * Returns: 0 on success, -ve on error
+ */
+int board_early_init_r(void)
+{
+ if (gd->flags & GD_FLG_RELOC) {
+ int ret;
+
+ ret = setup_block();
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
projects / u-boot.git / commitdiff
