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u-boot/doc
Neil Armstrong 60a99d5ca3 Introduce the Generic System Interconnect Subsystem
Let's introduce the Generic System Interconnect subsystem based on
the counterpart Linux framework which is used to vote for bandwidth
across multiple SoC busses.

Documentation for the Linux Generic System Interconnect Subsystem can
be found at [1].

Each bus endpoints are materialised as "nodes" which are linked together,
and the DT will specify a pair of nodes to enable and set a bandwidth
on the route between those endpoints.

The hardware resources that provide those nodes and provides the way
to vote for the bandwidth are called "providers".

The Interconnect uclass code is heavily based on the Linux one, with
some small differences:
- nodes are allocated as udevices instead of Linux idr_alloc()
- tag management is minimal, only normal xlate is supported
- getting nodes states at probe is not implemented
- providers are probed on demand while the nodes links are traversed
- nodes are populated on bind
- id management is simplified, static IDs and dynamics IDs can be used
- identical consume API as Linux, only implementation differs

Fully tested with associated DM test suite.

[1] https://docs.kernel.org/driver-api/interconnect.html

Link: https://patch.msgid.link/20251120-topic-interconnect-next-v5-1-e8a82720da5d@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
2025-11-20 09:17:58 +01:00
..
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2025-10-26 09:03:27 -06:00
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2016-02-06 12:00:59 +01:00
2020-09-30 16:55:03 -04:00
2020-07-16 12:37:01 +02:00
2022-04-25 16:04:05 -04:00

This patch series adds support for ZFS listing and load to u-boot.

To Enable zfs ls and load commands, modify the board specific config file with
#define CONFIG_CMD_ZFS

Steps to test:

1. After applying the patch, zfs specific commands can be seen
   in the boot loader prompt using
	UBOOT #help

	zfsload- load binary file from a ZFS file system
	zfsls  - list files in a directory (default /)

2. To list the files in zfs pool, device or partition, execute
	zfsls <interface> <dev[:part]> [POOL/@/dir/file]
	For example:
	UBOOT #zfsls mmc 0:5 /rpool/@/usr/bin/

3. To read and load a file from an ZFS formatted partition to RAM, execute
	zfsload <interface> <dev[:part]> [addr] [filename] [bytes]
	For example:
	UBOOT #zfsload mmc 2:2 0x30007fc0 /rpool/@/boot/uImage

References :
	-- ZFS GRUB sources from Solaris GRUB-0.97
	-- GRUB Bazaar repository

Jorgen Lundman <lundman at lundman.net> 2012.