This is preparation to move imx_soc_device_init to drivers/soc/imx/
There is no reason to must put dt devices under /sys/devices/soc0,
they could also be under /sys/devices/platform, so we could
pass NULL as parent when calling of_platform_default_populate.
Following soc-imx8.c soc-imx-scu.c using device_initcall, need
to change return type to int type for imx_soc_device_init.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
The patch adds plumbing to soc device info code necessary to support
Vybrid devices. Use case in mind for this is CAAM driver, which
utilizes said API.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-imx@nxp.com
Tested-by: Chris Healy <cphealy@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 3029 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch allows to build the Kernel for Vybrid (VF6xx) SoC
when ARMv7-M CPU is selected. The resulting image runs on the
secondary Cortex-M4 core. This core has equally access to all
peripherals as the main Cortex-A5 core. However, there is no
resource control mechanism, hence when both cores are used
simultaneously, orthogonal device tree's are required.
The boot CPU is dependent on the SoC variant. The available
boards use mostly variants where the Cortex-A5 is the primary
and hence the boot CPU. Booting the secondary Cortex-M4 CPU
needs SoC specific registers written. There is no in kernel
support for this right now, a external userspace utility
called "m4boot" can be used to boot the kernel:
m4boot xipImage initramfs.cpio.lzo vf610m4-colibri.dtb
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The Vybrid SoC family (in the kernel known as vf610) is a familiy
of multiple similar SoC's. The VF5xx series comes without secondary
Cortex-M4 core, while the second number VFx1x indicates the presence
of a L2 cache controller.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
System restart mechanism has been changed with the introduction
of "kernel restart handler call chain support". The imx2 watchdog
based restart handler has been moved to the driver, and these
restart can be removed from the machine layer.
This patch cleans up the device tree version machine reset init with
mxc_arch_reset_init_dt and removes corresponding .restart handler,
for the .init_machine that can be handled by system default after
removing the mxc_arch_reset_init_dt, the .init_machine is also removed.
Signed-off-by: Jingchang Lu <jingchang.lu@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Otherwise GCC will mark the .init.rodata section R/W, which causes
a compile error once we add other real R/O data.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Remove the explicit call to l2x0_of_init(), converting to the generic
infrastructure instead. Since the .init_irq method only calls
irqchip_init(), we can remove that too as the generic code will take
care of that.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
They're u32, they're not unsigned long. The UL suffix is not required
here.
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
0-DAY kernel build testing backend reports the following.
scripts/checkpatch.pl 0001-ARM-imx-add-support-code-for-IMX50-based-machines.patch
# many are suggestions rather than must-fix
ERROR: Use of const init definition must use __initconst
#80: arch/arm/mach-imx/mach-imx50.c:26:
+static const char *imx50_dt_board_compat[] __initdata = {
While at it, fix the error globally for IMX platform.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Peng Fan
Andrey Smirnov
Thomas Gleixner
Stefan Agner
Jingchang Lu
Shawn Guo
Russell King
Shawn Guo
Sebastian Hesselbarth
Jingchang Lu