diff options
Diffstat (limited to 'include/bootflow.h')
| -rw-r--r-- | include/bootflow.h | 65 |
1 files changed, 40 insertions, 25 deletions
diff --git a/include/bootflow.h b/include/bootflow.h index f516bf8dea4..f20f575030f 100644 --- a/include/bootflow.h +++ b/include/bootflow.h @@ -37,6 +37,18 @@ enum bootflow_state_t { }; /** + * enum bootflow_flags_t - flags for bootflows + * + * @BOOTFLOWF_USE_PRIOR_FDT: Indicates that an FDT was not found by the bootmeth + * and it is using the prior-stage FDT, which is the U-Boot control FDT. + * This is only possible with the EFI bootmeth (distro-efi) and only when + * CONFIG_OF_HAS_PRIOR_STAGE is enabled + */ +enum bootflow_flags_t { + BOOTFLOWF_USE_PRIOR_FDT = 1 << 0, +}; + +/** * struct bootflow - information about a bootflow * * This is connected into two separate linked lists: @@ -68,6 +80,7 @@ enum bootflow_state_t { * @fdt_fname: Filename of FDT file * @fdt_size: Size of FDT file * @fdt_addr: Address of loaded fdt + * @flags: Flags for the bootflow (see enum bootflow_flags_t) */ struct bootflow { struct list_head bm_node; @@ -90,39 +103,40 @@ struct bootflow { char *fdt_fname; int fdt_size; ulong fdt_addr; + int flags; }; /** - * enum bootflow_flags_t - flags for the bootflow iterator + * enum bootflow_iter_flags_t - flags for the bootflow iterator * - * @BOOTFLOWF_FIXED: Only used fixed/internal media - * @BOOTFLOWF_SHOW: Show each bootdev before scanning it; show each hunter + * @BOOTFLOWIF_FIXED: Only used fixed/internal media + * @BOOTFLOWIF_SHOW: Show each bootdev before scanning it; show each hunter * before using it - * @BOOTFLOWF_ALL: Return bootflows with errors as well - * @BOOTFLOWF_HUNT: Hunt for new bootdevs using the bootdrv hunters + * @BOOTFLOWIF_ALL: Return bootflows with errors as well + * @BOOTFLOWIF_HUNT: Hunt for new bootdevs using the bootdrv hunters * * Internal flags: - * @BOOTFLOWF_SINGLE_DEV: (internal) Just scan one bootdev - * @BOOTFLOWF_SKIP_GLOBAL: (internal) Don't scan global bootmeths - * @BOOTFLOWF_SINGLE_UCLASS: (internal) Keep scanning through all devices in + * @BOOTFLOWIF_SINGLE_DEV: (internal) Just scan one bootdev + * @BOOTFLOWIF_SKIP_GLOBAL: (internal) Don't scan global bootmeths + * @BOOTFLOWIF_SINGLE_UCLASS: (internal) Keep scanning through all devices in * this uclass (used with things like "mmc") - * @BOOTFLOWF_SINGLE_MEDIA: (internal) Scan one media device in the uclass (used + * @BOOTFLOWIF_SINGLE_MEDIA: (internal) Scan one media device in the uclass (used * with things like "mmc1") */ -enum bootflow_flags_t { - BOOTFLOWF_FIXED = 1 << 0, - BOOTFLOWF_SHOW = 1 << 1, - BOOTFLOWF_ALL = 1 << 2, - BOOTFLOWF_HUNT = 1 << 3, +enum bootflow_iter_flags_t { + BOOTFLOWIF_FIXED = 1 << 0, + BOOTFLOWIF_SHOW = 1 << 1, + BOOTFLOWIF_ALL = 1 << 2, + BOOTFLOWIF_HUNT = 1 << 3, /* * flags used internally by standard boot - do not set these when * calling bootflow_scan_bootdev() etc. */ - BOOTFLOWF_SINGLE_DEV = 1 << 16, - BOOTFLOWF_SKIP_GLOBAL = 1 << 17, - BOOTFLOWF_SINGLE_UCLASS = 1 << 18, - BOOTFLOWF_SINGLE_MEDIA = 1 << 19, + BOOTFLOWIF_SINGLE_DEV = 1 << 16, + BOOTFLOWIF_SKIP_GLOBAL = 1 << 17, + BOOTFLOWIF_SINGLE_UCLASS = 1 << 18, + BOOTFLOWIF_SINGLE_MEDIA = 1 << 19, }; /** @@ -164,9 +178,9 @@ enum bootflow_meth_flags_t { * updated to a larger value, no less than the number of available partitions. * This ensures that iteration works through all partitions on the bootdev. * - * @flags: Flags to use (see enum bootflow_flags_t). If BOOTFLOWF_GLOBAL_FIRST is - * enabled then the global bootmeths are being scanned, otherwise we have - * moved onto the bootdevs + * @flags: Flags to use (see enum bootflow_iter_flags_t). If + * BOOTFLOWIF_GLOBAL_FIRST is enabled then the global bootmeths are being + * scanned, otherwise we have moved onto the bootdevs * @dev: Current bootdev, NULL if none. This is only ever updated in * bootflow_iter_set_dev() * @part: Current partition number (0 for whole device) @@ -233,7 +247,7 @@ void bootflow_init(struct bootflow *bflow, struct udevice *bootdev, * This sets everything to the starting point, ready for use. * * @iter: Place to store private info (inited by this call) - * @flags: Flags to use (see enum bootflow_flags_t) + * @flags: Flags to use (see enum bootflow_iter_flags_t) */ void bootflow_iter_init(struct bootflow_iter *iter, int flags); @@ -259,15 +273,16 @@ int bootflow_iter_drop_bootmeth(struct bootflow_iter *iter, /** * bootflow_scan_first() - find the first bootflow for a device or label * - * If @flags includes BOOTFLOWF_ALL then bootflows with errors are returned too + * If @flags includes BOOTFLOWIF_ALL then bootflows with errors are returned too * * @dev: Boot device to scan, NULL to work through all of them until it * finds one that can supply a bootflow * @label: Label to control the scan, NULL to work through all devices * until it finds one that can supply a bootflow * @iter: Place to store private info (inited by this call) - * @flags: Flags for iterator (enum bootflow_flags_t). Note that if @dev - * is NULL, then BOOTFLOWF_SKIP_GLOBAL is set automatically by this function + * @flags: Flags for iterator (enum bootflow_iter_flags_t). Note that if + * @dev is NULL, then BOOTFLOWIF_SKIP_GLOBAL is set automatically by this + * function * @bflow: Place to put the bootflow if found * Return: 0 if found, -ENODEV if no device, other -ve on other error * (iteration can continue) |