Hi Simon,
-----Original Message----- From: Simon Glass sjg@chromium.org Sent: Monday, July 29, 2024 3:36 AM To: Z.Q. Hou zhiqiang.hou@nxp.com; Heinrich Schuchardt xypron.glpk@gmx.de Cc: u-boot@lists.denx.de; trini@konsulko.com; Peng Fan peng.fan@nxp.com; festevam@gmail.com Subject: Re: [PATCHv3 09/12] doc: cmd: add documentation for cpu command
+Heinrich Schuchardt for review too
Hi Zhiqiang,
On Fri, 26 Jul 2024 at 11:30, Zhiqiang Hou Zhiqiang.Hou@nxp.com wrote:
From: Hou Zhiqiang Zhiqiang.Hou@nxp.com
Add documentation for the 'cpu' command, taking NXP i.MX 8M Plus as a example.
Signed-off-by: Hou Zhiqiang Zhiqiang.Hou@nxp.com
V3:
- New patch.
doc/usage/cmd/cpu.rst | 82 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 doc/usage/cmd/cpu.rst
I think you have left behind the review tags I sent on the previous version. You should pick those up for the next version ('patman status' can do it for you).
Will add in v4.
diff --git a/doc/usage/cmd/cpu.rst b/doc/usage/cmd/cpu.rst new file mode 100644 index 00000000000..0970e57d5b5 --- /dev/null +++ b/doc/usage/cmd/cpu.rst @@ -0,0 +1,82 @@ +.. SPDX-License-Identifier: GPL-2.0+ +.. Copyright 2024 NXP
+.. index::
- single: cpu (command)
+cpu command +===========
+Synopsis +--------
+::
- cpu list
- cpu detail
- cpu release <core ID> <addr>
+Description +-----------
+The *cpu* command prints information about the CPUs, and release a +CPU core to a given address to run applications.
+Example +-------
We normally put the examples at the bottom, after all subcommands have been explained.
Will add brief description for each subcommand.
+cpu list +~~~~~~~~ +List and print brief information of all the CPU cores On i.MX8M Plus EVK: +::
- u-boot=> cpu list
0: cpu@0 NXP i.MX8MP Rev1.1 A53 at 1200 MHz at 31CAre there blank lines here? It seems like there should not be?
Yes, copied from the test logs.
1: cpu@1 NXP i.MX8MP Rev1.1 A53 at 1200 MHz at 30C2: cpu@2 NXP i.MX8MP Rev1.1 A53 at 1200 MHz at 31C3: cpu@3 NXP i.MX8MP Rev1.1 A53 at 1200 MHz at 31C+cpu detail +~~~~~~~~~~ +Print more details of all the CPU cores On i.MX8M Plus EVK: +::
- u-boot=> cpu detail
0: cpu@0 NXP i.MX8MP Rev1.1 A53 at 1200 MHz at 31CID = 0, freq = 1.2 GHz: L1 cache, MMU1: cpu@1 NXP i.MX8MP Rev1.1 A53 at 1200 MHz at 30CID = 0, freq = 1.2 GHz: L1 cache, MMU2: cpu@2 NXP i.MX8MP Rev1.1 A53 at 1200 MHz at 31CID = 0, freq = 1.2 GHz: L1 cache, MMU3: cpu@3 NXP i.MX8MP Rev1.1 A53 at 1200 MHz at 31CID = 0, freq = 1.2 GHz: L1 cache, MMU+cpu release +~~~~~~~~~~~ +On i.MX8M Plus EVK, release the LAST core to run a RTOS application, +the <core ID> is the sequence number refer to the 'cpu list': +::
u-boot=> load mmc 1:2 C0000000 /hello_world.bin66008 bytes read in 5 ms (12.6 MiB/s)u-boot=> dcache flush; icache flushu-boot=> cpu release 3 C0000000lower-case c
Will change in v4.
Thanks, Zhiqiang