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SoC specific code is generally used for older platforms that don't (yet)
use device tree to do the same things.
- Support is added for i.MXRT10xx, a Cortex-M7 based microcontroller
from NXP. At the moment this is still incomplete as other portions
are merged through different trees.
- Long abandoned support for running NOMMU ARMv4 or ARMv5 platforms
gets removed, now the Arm NOMMU platforms are limited to the
Cortex-M family of microcontrollers
- Two old PXA boards get removed, along with corresponding driver
bits.
- Continued cleanup of the Intel IXP4xx platforms, removing some
remnants of the old board files.
- Minor Cleanups and fixes for Orion, PXA, MMP, Mstar, Samsung
- CPU idle support for AT91
- A system controller driver for Polarfire
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Merge tag 'arm-soc-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC updates from Arnd Bergmann:
"SoC specific code is generally used for older platforms that don't
(yet) use device tree to do the same things.
- Support is added for i.MXRT10xx, a Cortex-M7 based microcontroller
from NXP. At the moment this is still incomplete as other portions
are merged through different trees.
- Long abandoned support for running NOMMU ARMv4 or ARMv5 platforms
gets removed, now the Arm NOMMU platforms are limited to the
Cortex-M family of microcontrollers
- Two old PXA boards get removed, along with corresponding driver
bits.
- Continued cleanup of the Intel IXP4xx platforms, removing some
remnants of the old board files.
- Minor Cleanups and fixes for Orion, PXA, MMP, Mstar, Samsung
- CPU idle support for AT91
- A system controller driver for Polarfire"
* tag 'arm-soc-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (29 commits)
ARM: remove support for NOMMU ARMv4/v5
ARM: PXA: fix up decompressor code
soc: microchip: make mpfs_sys_controller_put static
ARM: pxa: remove Intel Imote2 and Stargate 2 boards
ARM: mmp: Fix failure to remove sram device
ARM: mstar: Select ARM_ERRATA_814220
soc: add microchip polarfire soc system controller
ARM: at91: Kconfig: select PM_OPP
ARM: at91: PM: add cpu idle support for sama7g5
ARM: at91: ddr: fix typo to align with datasheet naming
ARM: at91: ddr: align macro definitions
ARM: at91: ddr: remove CONFIG_SOC_SAMA7 dependency
ARM: ixp4xx: Convert to SPARSE_IRQ and P2V
ARM: ixp4xx: Drop all common code
ARM: ixp4xx: Drop custom DMA coherency and bouncing
ARM: ixp4xx: Remove feature bit accessors
net: ixp4xx_hss: Check features using syscon
net: ixp4xx_eth: Drop platform data support
soc: ixp4xx-npe: Access syscon regs using regmap
soc: ixp4xx: Add features from regmap helper
...
The mstar SoCs have an arch timer but HAVE_ARM_ARCH_TIMER wasn't
selected. If MSC313E_TIMER isn't selected then the kernel gets
stuck at boot because there are no timers available.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Link: https://lore.kernel.org/r/20220301104349.3040422-1-daniel@0x0f.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
All of the SoCs that are supported so far are Cortex A7 r0p5.
So it seems like this errata is present.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Reviewed-by: Romain Perier <romain.perier@gmail.com>
Link: https://lore.kernel.org/r/20220223064807.261878-1-daniel@0x0f.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
All of the ARCH_MSTARV7 chips have an MPLL as the source for
peripheral clocks so select MSTAR_MSC313_MPLL.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Link: https://lore.kernel.org/r/20210301123542.2800643-2-daniel@0x0f.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This patch adds SMP support for MStar/Sigmastar chips that have a second core
like those in the infinity2m family.
So far only single and dual core chips have been found so this does
the bare minimum to boot the second core. From what I can tell not having
the "holding pen" code to handle multiple cores is fine if there is only
one core the will get booted. This might need to be reconsidered if chips
with more cores turn up.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Link: https://lore.kernel.org/r/20201201134330.3037007-11-daniel@0x0f.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The infinity2m series of chips are like the other Mstar/Sigmastar
chips in that they have a Cortex A7 system with DDR memory integrated
in a single package.
The infinity2m chips are intended for recording the incoming streams
from IP cameras. So instead of video encoders they have video decoders,
instead of a camera interface they have display hardware and so on.
Aside from the above points the big difference about these chips is that
they include a second Cortex A7 core.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Link: https://lore.kernel.org/r/20201201134330.3037007-5-daniel@0x0f.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
MediaTek recently introduced support for the MStar interrupt
controller that is also present in some of their chips as well
as the MStar/Sigmastar chips.
Almost all of the peripheral interrupts go through an instance of
this controller in MStar/SigmaStar Arm v7 chips so we want to select
it if CONFIG_ARCH_MSTARV7 is selected.
Link: https://lore.kernel.org/r/20201002133418.2250277-2-daniel@0x0f.com
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Initial support for the MStar/Sigmastar Armv7 based IP camera
and dashcam SoCs.
These chips are interesting in that they contain a Cortex-A7,
peripherals and system memory in a single tiny QFN package that
can be hand soldered allowing almost anyone to embed Linux
in their projects.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
