Files
u-boot/doc
Simon Glass 9932bb407a sandbox: Move PCI EA space out of RAM
The address chosen for testing this feature is 1MB which is part of the
sandbox RAM. When devices access this, e.g. with map_sysmem(), the
memory is mapped to a PCI device. Any changes then apply to that device
and are not written to memory. Reads also come from the device.

It is not safe to use RAM space in this way.

A symptom that something is wrong is the log message:

   map_physmem: Warning: partial map at 100000, wanted 4, got 2000

Move the memory out of the way and document it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Fixes: 21ebbafde8 ("test: dm: Add a test for PCI Enhanced Allocation")
2025-08-17 14:37:22 -06:00
..
2025-06-09 16:21:06 -06:00
2024-10-30 21:44:38 +01:00
2025-07-28 13:06:51 +12:00
2025-08-04 14:39:59 -06:00

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.