ARM: bootm: Allow booting in secure mode on hyp capable systems

Older Linux kernels will not properly boot in hyp mode, add support for a
bootm_boot_mode environment variable, which can be set to "s

ARM: bootm: Allow booting in secure mode on hyp capable systems

Older Linux kernels will not properly boot in hyp mode, add support for a
bootm_boot_mode environment variable, which can be set to "sec" or "nonsec"
to force booting in secure or non-secure mode when build with non-sec support.

The default behavior can be selected through CONFIG_ARMV7_BOOT_SEC_DEFAULT,
when this is set booting in secure mode is the default. The default setting
for this Kconfig option is N, preserving the current behavior of booting in
non-secure mode by default when non-secure mode is supported.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>

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Revert "lib: bootm: add missing include"

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Revert "lib: bootm: add missing include"

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This reverts commit 1e96220a5687efae2aed45ce56e143336c40d0a7.

Remove duplicated vxworks.h header.
The same change was done by
"ARM: prevent compiler warnings from bootm.c"
(sha1: 8d196e52b58d1e50a80c2f5067b201cda521c75c)

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

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

lib: bootm: add missing include

since the vxworks weaks are reimplement make
sure their prototypes are visible.

Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>

ARM: prevent compiler warnings from bootm.c

Without preceding declarations, "make C=1" generates
"Should it be static?" warnings for symbols
do_bootm_linux,
boot_prep_vxworks, and
boot_jump_vxwor

ARM: prevent compiler warnings from bootm.c

Without preceding declarations, "make C=1" generates
"Should it be static?" warnings for symbols
do_bootm_linux,
boot_prep_vxworks, and
boot_jump_vxworks

Include of bootm.h also identified a signature mismatch
(const on argv[]).

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net>

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arm64: Correct passing of Linux kernel args

The Documentation/arm64/booting.txt document says that pass in x1/x2/x3
as 0 as they are reserved for future use.

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

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

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

ARM: convert arch_fixup_memory_node to a generic FDT fixup function

Some architecture needs extra device tree setup. Instead of adding
yet another hook, convert arch_fixup_memory_node to be a generi

ARM: convert arch_fixup_memory_node to a generic FDT fixup function

Some architecture needs extra device tree setup. Instead of adding
yet another hook, convert arch_fixup_memory_node to be a generic
FDT fixup function.

[maz: collapsed 3 patches into one, rewrote commit message]

Signed-off-by: Ma Haijun <mahaijuns@gmail.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

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ARM: HYP/non-sec: allow relocation to secure RAM

The current non-sec switching code suffers from one major issue:
it cannot run in secure RAM, as a large part of u-boot still needs
to be run while w

ARM: HYP/non-sec: allow relocation to secure RAM

The current non-sec switching code suffers from one major issue:
it cannot run in secure RAM, as a large part of u-boot still needs
to be run while we're switched to non-secure.

This patch reworks the whole HYP/non-secure strategy by:
- making sure the secure code is the *last* thing u-boot executes
before entering the payload
- performing an exception return from secure mode directly into
the payload
- allowing the code to be dynamically relocated to secure RAM
before switching to non-secure.

This involves quite a bit of horrible code, specially as u-boot
relocation is quite primitive.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

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ARM: HYP/non-sec: move switch to non-sec to the last boot phase

Having the switch to non-secure in the "prep" phase is causing
all kind of troubles, as that stage can be called multiple times.

Inst

ARM: HYP/non-sec: move switch to non-sec to the last boot phase

Having the switch to non-secure in the "prep" phase is causing
all kind of troubles, as that stage can be called multiple times.

Instead, move the switch to non-secure to the last possible phase,
when there is no turning back anymore.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

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bootstage: arm: fix fdt stashing code

The conditional is using a variable that is not defined.

Signed-off-by: Rommel G Custodio <sessyargc+u-boot@gmail.com>

armv8: Flush dcache before switching to EL2

For ARMv8, U-boot has been running at EL3 with cache and MMU enabled.
Without proper setup for EL2, cache and MMU are both disabled (out of
reset). Before

armv8: Flush dcache before switching to EL2

For ARMv8, U-boot has been running at EL3 with cache and MMU enabled.
Without proper setup for EL2, cache and MMU are both disabled (out of
reset). Before switching, we need to flush the dcache to make sure the
data is in the main memory.

Signed-off-by: York Sun <yorksun@freescale.com>
Acked-by: David.Feng <fenghua@phytium.com.cn>

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

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

Bringing in the MMC tree means that CONFIG_BOUNCE_BUFFER needed to be
added to include/configs/exynos5-dt.h now.

Conflicts:
include/configs/ex

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

Bringing in the MMC tree means that CONFIG_BOUNCE_BUFFER needed to be
added to include/configs/exynos5-dt.h now.

Conflicts:
include/configs/exynos5250-dt.h

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

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arm64: core support

Relocation code based on a patch by Scott Wood, which is:
Signed-off-by: Scott Wood <scottwood@freescale.com>

Signed-off-by: David Feng <fenghua@phytium.com.cn>

common/cmd_bootm: extend do_bootm_vxworks to support the new VxWorks boot interface.

The next version VxWorks adopts device tree (for PowerPC and ARM) as its hardware
description mechanism. For Powe

common/cmd_bootm: extend do_bootm_vxworks to support the new VxWorks boot interface.

The next version VxWorks adopts device tree (for PowerPC and ARM) as its hardware
description mechanism. For PowerPC, the boot interface conforms to
the ePAPR standard, which is:

void (*kernel_entry)(ulong fdt_addr,
ulong r4 /* 0 */,
ulong r5 /* 0 */,
ulong r6 /* EPAPR_MAGIC */, ulong r7 /* IMA size */,
ulong r8 /* 0 */, ulong r9 /* 0 */)

For ARM, the boot interface is:

void (*kernel_entry)(void *fdt_addr)

Signed-off-by: Miao Yan <miao.yan@windriver.com>
[trini: Fix build error when !CONFIG_OF_FDT is set, typo on PowerPC,
missing extern ft_fixup_num_cores]
Signed-off-by: Tom Rini <trini@ti.com>

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

ARM: extend non-secure switch to also go into HYP mode

For the KVM and XEN hypervisors to be usable, we need to enter the
kernel in HYP mode. Now that we already are in non-secure state,
HYP mode sw

ARM: extend non-secure switch to also go into HYP mode

For the KVM and XEN hypervisors to be usable, we need to enter the
kernel in HYP mode. Now that we already are in non-secure state,
HYP mode switching is within short reach.

While doing the non-secure switch, we have to enable the HVC
instruction and setup the HYP mode HVBAR (while still secure).

The actual switch is done by dropping back from a HYP mode handler
without actually leaving HYP mode, so we introduce a new handler
routine in our new secure exception vector table.

In the assembly switching routine we save and restore the banked LR
and SP registers around the hypercall to do the actual HYP mode
switch.

The C routine first checks whether we are in HYP mode already and
also whether the virtualization extensions are available. It also
checks whether the HYP mode switch was finally successful.
The bootm command part only calls the new function after the
non-secure switch.

Signed-off-by: Andre Przywara <andre.przywara@linaro.org>

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ARM: trigger non-secure state switch during bootm execution

To actually trigger the non-secure switch we just implemented, call
the switching routine from within the bootm command implementation.
Th

ARM: trigger non-secure state switch during bootm execution

To actually trigger the non-secure switch we just implemented, call
the switching routine from within the bootm command implementation.
This way we automatically enable this feature without further user
intervention.

Signed-off-by: Andre Przywara <andre.przywara@linaro.org>

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Merge git://git.denx.de/u-boot-arm

Conflicts:
board/freescale/mx6qsabrelite/Makefile
board/freescale/mx6qsabrelite/mx6qsabrelite.c
include/configs/mx6qsabrelite.h

Signed-off-by: Stefano Babic <s

Merge git://git.denx.de/u-boot-arm

Conflicts:
board/freescale/mx6qsabrelite/Makefile
board/freescale/mx6qsabrelite/mx6qsabrelite.c
include/configs/mx6qsabrelite.h

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

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Merge branch 'u-boot/master' into u-boot-arm/master

Add GPL-2.0+ SPDX-License-Identifier to source files

Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>

bootm: Clean up bootz_setup() function

This function has no prototype in the headers and passes void * around, thus
requiring several casts. Tidy this up.

- Add new patch to clean up bootz_setup()

bootm: Clean up bootz_setup() function

This function has no prototype in the headers and passes void * around, thus
requiring several casts. Tidy this up.

- Add new patch to clean up bootz_setup() function

Signed-off-by: Simon Glass <sjg@chromium.org>

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arm: Implement the 'fake' go command

Implement this feature on ARM for tracing.

It would be nice to have generic bootm support so that it is easily
implemented on any arch.

Signed-off-by: Simon Gl

arm: Implement the 'fake' go command

Implement this feature on ARM for tracing.

It would be nice to have generic bootm support so that it is easily
implemented on any arch.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net>

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