When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
Some Freescale boards used an extra version of the constant to hold the
Generic Timer frequency. This can easily be covered by the now unified
COUNTER_FREQUENCY constant, so remove this extra variable from those
boards.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: York Sun <york.sun@nxp.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
The deep sleep function of LS1 platform, is mapped into PSCI system
suspend function, this patch adds implementation of it.
Signed-off-by: Hongbo Zhang <hongbo.zhang@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
This patch implements PSCI functions for ls102xa SoC following PSCI v1.0,
they are as the list:
psci_version,
psci_features,
psci_cpu_suspend,
psci_affinity_info,
psci_system_reset,
psci_system_off.
Tested on LS1021aQDS, LS1021aTWR.
Signed-off-by: Wang Dongsheng <dongsheng.wang@nxp.com>
Signed-off-by: Hongbo Zhang <hongbo.zhang@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
The input parameter CPU ID needs to be validated before furher oprations such
as CPU_ON, this patch introduces the function to do this.
Signed-off-by: Wang Dongsheng <dongsheng.wang@nxp.com>
Signed-off-by: Hongbo Zhang <hongbo.zhang@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
Now that we have a secure data section and space to store per-CPU target
PC address, switch to it instead of storing the target PC on the stack.
Also save clobbered r4-r7 registers on the stack and restore them on
return in psci_cpu_on for Tegra, i.MX7, and LS102xA platforms.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
psci_text_end was used to calculate the PSCI stack address following the
secure monitor text. Now that we have an explicit secure stack section,
this is no longer used.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Every platform has the same stack setup code in assembly as part of
psci_arch_init.
Move this out into a common separate function, psci_stack_setup, for
all platforms. This will allow us to move the remaining parts of
psci_arch_init into C code, or drop it entirely.
Also provide a stub no-op psci_arch_init for platforms that don't need
their own specific setup code.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Base on PSCI services, implement CPU_ON/CPU_OFF for ls102xa platform.
Tested on LS1021AQDS, LS1021ATWR.
Test CPU hotplug times: 60K
Test kernel boot times: 1.2K
Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com>
Acked-by: Alison Wang <alison.wang@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
