arm: armv7/8: add CONFIG_ARM_CPU_SUSPEND definition

Make it as a optional choice.

Change-Id: I87c5d8ce863eb64f3922fb4124e1f4a6aaf79257
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>

arm: armv7: introduce cpu suspend and resume support

Just like linux, it supports cpu save and restore context
during enter and exit low power mode. With this patch, cpu
is able to suspend with core

arm: armv7: introduce cpu suspend and resume support

Just like linux, it supports cpu save and restore context
during enter and exit low power mode. With this patch, cpu
is able to suspend with core power off.

Workflow for trap into ATF for system suspend:
cpu_suspend
-> cpu_do_suspend
-> arch specific fn: int (*fn)(unsigned long)
-> psci_system_suspend(deliver 'cpu_resume()' address to ATF)
-> ATF system suspend
<- ATF system resume
<- cpu_resume
<- cpu_do_resume
next instruction

Notice: If needed, you should remember to save and restore GIC by yourself.

Change-Id: I5cb6fb6ac5b6a7f4ec4a975b0fc38250b000b28e
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>

show more ...

Merge branch 'master' of git://www.denx.de/git/u-boot-imx

imx: reorganize IMX code as other SOCs

Change is consistent with other SOCs and it is in preparation
for adding SOMs. SOC's related files are moved from cpu/ to
mach-imx/<SOC>.

This change is also

imx: reorganize IMX code as other SOCs

Change is consistent with other SOCs and it is in preparation
for adding SOMs. SOC's related files are moved from cpu/ to
mach-imx/<SOC>.

This change is also coherent with the structure in kernel.

Signed-off-by: Stefano Babic <sbabic@denx.de>

CC: Fabio Estevam <fabio.estevam@nxp.com>
CC: Akshay Bhat <akshaybhat@timesys.com>
CC: Ken Lin <Ken.Lin@advantech.com.tw>
CC: Marek Vasut <marek.vasut@gmail.com>
CC: Heiko Schocher <hs@denx.de>
CC: "Sébastien Szymanski" <sebastien.szymanski@armadeus.com>
CC: Christian Gmeiner <christian.gmeiner@gmail.com>
CC: Stefan Roese <sr@denx.de>
CC: Patrick Bruenn <p.bruenn@beckhoff.com>
CC: Troy Kisky <troy.kisky@boundarydevices.com>
CC: Nikita Kiryanov <nikita@compulab.co.il>
CC: Otavio Salvador <otavio@ossystems.com.br>
CC: "Eric Bénard" <eric@eukrea.com>
CC: Jagan Teki <jagan@amarulasolutions.com>
CC: Ye Li <ye.li@nxp.com>
CC: Peng Fan <peng.fan@nxp.com>
CC: Adrian Alonso <adrian.alonso@nxp.com>
CC: Alison Wang <b18965@freescale.com>
CC: Tim Harvey <tharvey@gateworks.com>
CC: Martin Donnelly <martin.donnelly@ge.com>
CC: Marcin Niestroj <m.niestroj@grinn-global.com>
CC: Lukasz Majewski <lukma@denx.de>
CC: Adam Ford <aford173@gmail.com>
CC: "Albert ARIBAUD (3ADEV)" <albert.aribaud@3adev.fr>
CC: Boris Brezillon <boris.brezillon@free-electrons.com>
CC: Soeren Moch <smoch@web.de>
CC: Richard Hu <richard.hu@technexion.com>
CC: Wig Cheng <wig.cheng@technexion.com>
CC: Vanessa Maegima <vanessa.maegima@nxp.com>
CC: Max Krummenacher <max.krummenacher@toradex.com>
CC: Stefan Agner <stefan.agner@toradex.com>
CC: Markus Niebel <Markus.Niebel@tq-group.com>
CC: Breno Lima <breno.lima@nxp.com>
CC: Francesco Montefoschi <francesco.montefoschi@udoo.org>
CC: Jaehoon Chung <jh80.chung@samsung.com>
CC: Scott Wood <oss@buserror.net>
CC: Joe Hershberger <joe.hershberger@ni.com>
CC: Anatolij Gustschin <agust@denx.de>
CC: Simon Glass <sjg@chromium.org>
CC: "Andrew F. Davis" <afd@ti.com>
CC: "Łukasz Majewski" <l.majewski@samsung.com>
CC: Patrice Chotard <patrice.chotard@st.com>
CC: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
CC: Hans de Goede <hdegoede@redhat.com>
CC: Masahiro Yamada <yamada.masahiro@socionext.com>
CC: Stephen Warren <swarren@nvidia.com>
CC: Andre Przywara <andre.przywara@arm.com>
CC: "Álvaro Fernández Rojas" <noltari@gmail.com>
CC: York Sun <york.sun@nxp.com>
CC: Xiaoliang Yang <xiaoliang.yang@nxp.com>
CC: Chen-Yu Tsai <wens@csie.org>
CC: George McCollister <george.mccollister@gmail.com>
CC: Sven Ebenfeld <sven.ebenfeld@gmail.com>
CC: Filip Brozovic <fbrozovic@gmail.com>
CC: Petr Kulhavy <brain@jikos.cz>
CC: Eric Nelson <eric@nelint.com>
CC: Bai Ping <ping.bai@nxp.com>
CC: Anson Huang <Anson.Huang@nxp.com>
CC: Sanchayan Maity <maitysanchayan@gmail.com>
CC: Lokesh Vutla <lokeshvutla@ti.com>
CC: Patrick Delaunay <patrick.delaunay@st.com>
CC: Gary Bisson <gary.bisson@boundarydevices.com>
CC: Alexander Graf <agraf@suse.de>
CC: u-boot@lists.denx.de
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

show more ...

armv7: Mark the default lowlevel_init function as weak

Rather than have a long and if check in the Makefile, mark the default
lowlevel_init function as weak (as we do on armv8) so that SoCs can
over

armv7: Mark the default lowlevel_init function as weak

Rather than have a long and if check in the Makefile, mark the default
lowlevel_init function as weak (as we do on armv8) so that SoCs can
override it if needed, and it will still be discarded if unused.
Provide a weak s_init as well to allow for this to link and be
discarded.

Signed-off-by: Tom Rini <trini@konsulko.com>

show more ...

Merge branch 'master' of git://git.denx.de/u-boot

Signed-off-by: Stefano Babic <sbabic@denx.de>

Merge git://git.denx.de/u-boot-fsl-qoriq

ARM: adjust arm-smccc code for use in U-Boot

Adjust ARM SMC Calling Convention code for U-Boot:
- Replace the license block with SPDX
- Change path to asm-offsets.h
- Define UNWIND() as no-op

ARM: adjust arm-smccc code for use in U-Boot

Adjust ARM SMC Calling Convention code for U-Boot:
- Replace the license block with SPDX
- Change path to asm-offsets.h
- Define UNWIND() as no-op
- Add Kconfig entry
- Add asm-offsets

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

show more ...

armv7: ls1021a: Drop macro CONFIG_LS102XA

Use CONFIG_ARCH_LS1021A instead.

Signed-off-by: York Sun <york.sun@nxp.com>

Merge branch 'master' of git://www.denx.de/git/u-boot-imx

Signed-off-by: Tom Rini <trini@konsulko.com>

Conflicts:
configs/bk4r1_defconfig
configs/colibri_vf_defconfig
configs/pcm052_defconfig
i

Merge branch 'master' of git://www.denx.de/git/u-boot-imx

Signed-off-by: Tom Rini <trini@konsulko.com>

Conflicts:
configs/bk4r1_defconfig
configs/colibri_vf_defconfig
configs/pcm052_defconfig
include/configs/colibri_vf.h
include/configs/pcm052.h

show more ...

imx: mx7ulp: Add mx7ulp to Kconfig

i.MX7ULP is a new series SoC which has different architecture
from previous i.MX platforms. Create a new cpu folder for it,
and add it to Kconfig.

Signed-off-by:

imx: mx7ulp: Add mx7ulp to Kconfig

i.MX7ULP is a new series SoC which has different architecture
from previous i.MX platforms. Create a new cpu folder for it,
and add it to Kconfig.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by : Stefano Babic <sbabic@denx.de>

show more ...

Merge branch 'master' of git://git.denx.de/u-boot

Signed-off-by: Stefano Babic <sbabic@denx.de>

arm: Introduce arch/arm/mach-omap2 for OMAP2 derivative platforms

This moves what was in arch/arm/cpu/armv7/omap-common in to
arch/arm/mach-omap2 and moves
arch/arm/cpu/armv7/{am33xx,omap3,omap4,oma

arm: Introduce arch/arm/mach-omap2 for OMAP2 derivative platforms

This moves what was in arch/arm/cpu/armv7/omap-common in to
arch/arm/mach-omap2 and moves
arch/arm/cpu/armv7/{am33xx,omap3,omap4,omap5} in to arch/arm/mach-omap2
as subdirectories. All refernces to the former locations are updated to
the current locations. For the logic to decide what our outputs are,
consolidate the tests into a single config.mk rather than including 4.

Signed-off-by: Tom Rini <trini@konsulko.com>

show more ...

Merge branch 'master' of http://git.denx.de/u-boot-sunxi

sunxi: Rename CONFIG_SUNXI to CONFIG_ARCH_SUNXI

CONFIG_SUNXI -> CONFIG_ARCH_SUNXI
and removed CONFIG_SUNIX from config_whitelist.txt

Cc: Simon Glass <sjg@chromium.org>
Cc: Ian Campbell <ijc@hellion

sunxi: Rename CONFIG_SUNXI to CONFIG_ARCH_SUNXI

CONFIG_SUNXI -> CONFIG_ARCH_SUNXI
and removed CONFIG_SUNIX from config_whitelist.txt

Cc: Simon Glass <sjg@chromium.org>
Cc: Ian Campbell <ijc@hellion.org.uk>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

show more ...

Merge git://git.denx.de/u-boot-fsl-qoriq

Signed-off-by: Tom Rini <trini@konsulko.com>

Conflicts:
include/configs/ls1021aqds.h
include/configs/ls1021atwr.h

armv7: LS1021a: enable i-cache in start.S

Delete CONFIG_SKIP_LOWLEVEL_INIT define in ls1021atwr.h and
ls1021aqds.h can let it run cpu_init_cp15 to enable i-cache. First
stage of u-boot can run faste

armv7: LS1021a: enable i-cache in start.S

Delete CONFIG_SKIP_LOWLEVEL_INIT define in ls1021atwr.h and
ls1021aqds.h can let it run cpu_init_cp15 to enable i-cache. First
stage of u-boot can run faster after that. There is a description
about skip lowlevel init in board/freescale/ls1021atwr/README.

Signed-off-by: Xiaoliang Yang <xiaoliang.yang@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

show more ...

Merge branch 'master' of http://git.denx.de/u-boot-sunxi

ARM: PSCI: Add helper functions to access per-CPU target PC storage

Now that we have a data section, add helper functions to save and fetch
per-CPU target PC.

Signed-off-by: Chen-Yu Tsai <wens@csie

ARM: PSCI: Add helper functions to access per-CPU target PC storage

Now that we have a data section, add helper functions to save and fetch
per-CPU target PC.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

show more ...

ARM: armv7: refactor Makefile slightly

Use Kbuild standard style where possible.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

board: arm:: Add support for Broadcom BCM23550

Add support for the Broadcom BCM23550 board.

Signed-off-by: Steve Rae <srae@broadcom.com>

arm: Replace v7_maint_dcache_all(ARMV7_DCACHE_CLEAN_INVAL_ALL) with asm code

v7_maint_dcache_all() does not work reliable when build with gcc6,
see: https://bugzilla.redhat.com/show_bug.cgi?id=13187

arm: Replace v7_maint_dcache_all(ARMV7_DCACHE_CLEAN_INVAL_ALL) with asm code

v7_maint_dcache_all() does not work reliable when build with gcc6,
see: https://bugzilla.redhat.com/show_bug.cgi?id=1318788

While debugging this I learned that v7_maint_dcache_all() is unreliable
when build with gcc5 too when it is marked as noinline.

This commit fixes the reliability issues by replacing the C-code with
the ready to use asm implementation from the kernel.

Given that this code when written as C-code clearly is quite fragile
(also see the existing comments about the C-code being the way it is
to get optimal assembly) and that we have a proven asm alternative,
I believe that this is the best solution.

Note that we actually already had a copy of the kernel's
v7_flush_dcache_all() before this commit in
arch/arm/mach-uniphier/arm32/lowlevel_init.S.

This commit moves that code arch/arm/cpu/armv7/cache_v7_asm.S, renames
it to __v7_flush_dcache_all(), and adds a v7_flush_dcache_all() wrapper
which saves / restores the clobbered registers for use from C-code.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>

show more ...

Merge branch 'master' of git://git.denx.de/u-boot-samsung

arm: s5pc1xx: move SoC to mach-s5pc1xx

move arm/arm/cpu/armv7/s5pc1xx to arch/arm/mach-s5pc1xx

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

Merge remote-tracking branch 'u-boot/master'