> -----Original Message----- > From: Simon Glass <s...@chromium.org> > Sent: Thursday, July 25, 2024 10:03 PM > To: Z.Q. Hou <zhiqiang....@nxp.com> > Cc: u-boot@lists.denx.de; tr...@konsulko.com; Peng Fan > <peng....@nxp.com>; feste...@gmail.com > Subject: Re: [PATCHv2 7/9] cmd: cpu: add release subcommand > > Hi Zhiqiang, > > On Thu, 25 Jul 2024 at 03:32, Zhiqiang Hou <zhiqiang....@nxp.com> wrote: > > > > From: Hou Zhiqiang <zhiqiang....@nxp.com> > > > > Add a new subcommand 'release' to bring up a core to run baremetal and > > RTOS applications. > > > > For example on i.MX8M Plus EVK, release the LAST core to run a RTOS > > application, passing the sequence number of the CPU core to release, > > here it is 3: > > u-boot=> cpu list > > 0: cpu@0 NXP i.MX8MP Rev1.1 A53 at 1200 MHz at 31C > > > > 1: cpu@1 NXP i.MX8MP Rev1.1 A53 at 1200 MHz at 30C > > > > 2: cpu@2 NXP i.MX8MP Rev1.1 A53 at 1200 MHz at 31C > > > > 3: cpu@3 NXP i.MX8MP Rev1.1 A53 at 1200 MHz at 31C > > > > u-boot=> load mmc 1:2 C0000000 /hello_world.bin > > 66008 bytes read in 5 ms (12.6 MiB/s) > > u-boot=> dcache flush; icache flush > > u-boot=> cpu release 3 C0000000 > > Released CPU core (mpidr: 0x3) to address 0xc0000000 > > > > Signed-off-by: Hou Zhiqiang <zhiqiang....@nxp.com> > > --- > > V2: > > - No change. > > > > cmd/cpu.c | 44 ++++++++++++++++++++++++++++++++++++++++++-- > > 1 file changed, 42 insertions(+), 2 deletions(-) > > Reviewed-by: Simon Glass <s...@chromium.org> > > While you are here, would you mind adding a doc/usage/cmd/cpu.rst as that > is missing.
Yes, I'd like to. Zhiqiang
