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The build system supports generating two FIP images, fip and fwu_fip.
Accordingly, we have similar build macros.

   FIP_ADD_PAYLOAD   <-->  FWU_FIP_ADD_PAYLOAD
   CERT_ADD_CMD_OPT  <-->  FWU_CERT_ADD_CMD_OPT
   FIP_ADD_IMG       <-->  FWU_FIP_ADD_IMG

The duplicated code increases the maintenance burden.  Also, the build
rule of BL2U looks clumsy - we want to call MAKE_BL to compile it from
source files, but we want to put it in fwu_fip.  We can not do it in a
single macro call since the current MAKE_BL does not support fwu_fip.

To refactor those in a clean way is to support one more argument to
specify the FIP prefix.  If it is empty, the images are targeted to
fip, whereas if the argument is "FWU_", targeted to fwu_fip.

The build macros prefixed with FWU_ go away.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

Now, MAKE_TOOL_ARGS is only called from MAKE_BL.  Squash it.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

This complicated if-conditional combo was introduced by commit
70d1fc53

 ("Fix build error when `BL32` is not defined") in order
to fix the compile error of "make all" when SPD=opteed is given.

The requirement for the build system is like follows:

 - If both BL32 and BL32_SOURCES are defined, the former takes
   precedence.

 - If BL32 is undefined but BL32_SOURCES is defined, we compile
   BL32 from the source files.

 - We want to let the build fail if neither of them is defined,
   but we want to check it only when we are building FIP.

Refactor the code to not call FIP_ADD_IMG twice.  The behavior is
still the same.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

We use $(call MAKE_TOOL_ARGS,...) or $(call FIP_ADD_IMG,...) where we
expect externally built images.  The difference between the two is
check_* target.  It now checks if the given path exists, so it is a
good thing to use $(call FIP_ADD_IMG,...) in all the places.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

check_* targets check if the required option are given, but do not
check the validity of the argument.  If the specified file does not
exist, let the build fail immediately instead of passing the invalid
file path to tools.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

RK3399 GIC save/restore

fiptool: Fix use after free

Makefile: Use ld.bfd linker if available

Correct the Makefile logic for disabling PIE

Fix udelay issues that can make duration slightly too short

SPM: Map devices in the 1st GB

Fix documentation for CnP bit

docs: hikey: Fix typo

Some toolchain distributions install both the BFD and GOLD linkers under
the names <target>-ld.bfd and <target>-ld.gold. <target>-ld will then be
a symlink that may point to either one of these.

Trusted Firmware should always be linked with the BFD linker, since GOLD
is meant primarily for userspace programs and doesn't support many of
the more obscure linker script features that may be needed for firmware.
With this patch the Makefile will auto-detect if ld.bfd is available and
use it explicitly in that case.

Change-Id: I7017055f67db3bd57d191d20a7af06ca646937d7
Signed-off-by: Julius Werner <jwerner@chromium.org>

The CnP bit documentation in the Firmware Design Guide incorrectly
used the term "Page Entries" instead of "Processing Elements".
Fix that.

Change-Id: Ie44ee99c281b7b1a9ad90fba2c7d109f12425507
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>

hikey: fix assert in sec_protect()

This patch maps the devices in the first GB of the system address map
on the FVP into the S-EL1&0 translation regime when SPM support is
enabled. This grants the Secure Partition access to the devices in
this region, for example the memory-mapped Generic Timer device.

Change-Id: I3aeea65f859ecbe83efde2acee20c55500c451bc
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>

The correct name of the manufacturer is LeMaker.
Signed-off-by: Andreas Färber <afaerber@suse.de>

Commit 880b9e8b

 (Add padding at the end
of the last entry) added code using toc_entry pointer, whose memory is
already freed via variable buf. This causes enormous padding on openSUSE.

Free the memory buffer only after padding is done.
Signed-off-by: Andreas Färber <afaerber@suse.de>

`assert(e)` was used in place of `if (e) ERROR()` when sec_protect()
was ported from hikey fork so the logic should have been reversed.

Fixes: 3d5d9f5a ("hikey: configure the top 16MB of DRAM as secure")
Fixes: 52988b38

 ("hikey: configure 4 MB of secure DRAM for OP-TEE
Secure Data Path")
Signed-off-by: Victor Chong <victor.chong@linaro.org>
Tested-by: Victor Chong <victor.chong@linaro.org>

Hikey protect optee / sdp memory

This disables the redistributor before either of the pwr_dm_suspend
functions are called. This is because the rdist save code in the
rk3399 rockchip_soc_sys_pwr_dm_suspend function requires that each
redistributor be disabled before saving state.
Signed-off-by: Derek Basehore <dbasehore@chromium.org>

Delay functions like udelay() are often used to ensure that the
necessary time passed to allow some asynchronous event to finish, such
as the stabilization delay for a power rail. For these use cases it is
not very problematic if the delay is slightly longer than requested,
but it is critical that the delay must never be shorter.

The current udelay() implementation contains two hazards that may cause
the delay to be slightly shorter than intended: Firstly, the amount of
ticks to wait is calculated with an integer division, which may cut off
the last fraction of ticks needed. Secondly, the delay may be short by a
fraction of a tick because we do not know whether the initial ("start")
sample of the timer was near the start or near the end of the current
tick. Thus, if the code intends to wait for one tick, it might read the
timer value close to the end of the current tick and then read it again
right after the start of the next tick, concluding that the duration of
a full tick has passed when it in fact was just a fraction of it.

This patch rounds up the division and always adds one extra tick to
counteract both problems and ensure that delays will always be larger
but never smaller than requested.

Change-Id: Ic5fe5f858b5cdf3c0dbf3e488d4d5702d9569433
Signed-off-by: Julius Werner <jwerner@chromium.org>

uniphier: migrate to BL2-AT-EL3

SPM: Declare explicit width based types in secure_partition_boot_info…

Hikey960: Enable invalid FIQ handling

Workarounds for CVE-2017-5715 on A9/A15 and A17 + serial console reporting

poplar: Enable emmc and recovery build support

New console API and coreboot support [v4]

UniPhier platform implements non-TF boot ROM.  Prior to the BL2-AT-EL3
support, BL1 (worked as a pseudo ROM) was needed just for ensuring BL2
is entered at EL1-S.  Now, this platform is able to avoid this waste.

Enable the BL2_AT_EL3 option, and remove BL1.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

The warm boot mailbox code is compiled if PROGRAMMABLE_RESET_ADDRESS
is disabled.

The warm boot mailbox is useless for UniPhier SoC family because BL1
is not the first image.  The UniPhier platform implements non-TF ROM,
then BL1 works as a pseudo ROM, so it is never executed in the warm
boot.

The reset vector address is not actually programmable for UniPhier
platform, but it should not hurt to enable PROGRAMMABLE_RESET_ADDRESS
to disable the mailbox and remove pointless plat_get_my_entrypoint.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

Allow API deprecation for uniphier platform

Update the memory firewall configuration to reserve 4 MB of secure RAM
for use by the kernel and OP-TEE as the Secure Data Path pool.
Note that this address range (0x3E800000 - 0x3EC00000) falls in the
range already set aside by UEFI (which reserves the upper 32 MB of the
1GB DRAM for OP-TEE [1]) and was previously unused.

[1] https://github.com/96boards-hikey/edk2/blob/hikey/HisiPkg/HiKeyPkg/Library/HiKeyLib/HiKeyMem.c#L44

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Victor Chong <victor.chong@linaro.org>

DRAM region 0x3f000000 - 0x3fffffff is reserved for OP-TEE and should
therefore be accessible only from secure world.
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Victor Chong <victor.chong@linaro.org>

This adds calls to the GICv3 save/restore functions for the GIC
distributor and redistributor.
Signed-off-by: Derek Basehore <dbasehore@chromium.org>

We were looping for MAX_WAIT_COUNT in several places without any
delays, so this adds the delays to make those loops more predictable.
Signed-off-by: Derek Basehore <dbasehore@chromium.org>

The code was accidentally restoring the QOS on suspend and saving the
QOS on resume. This is the opposite of what we want.
Signed-off-by: Derek Basehore <dbasehore@chromium.org>

If the GIC loses power during suspend, which the restore code was
written for, exit early in the post restore power sequence. This
prevents an assert from tripping, and the power sequence isn't needed
in this case anyways.
Signed-off-by: Derek Basehore <dbasehore@chromium.org>

This brings ATF into line with the kernel on the timeout for power
domains turning on. We could actually timeout (when we shouldn't) on
resume when turning power domains on. The guaranteed maximum delay is
now 10ms.
Signed-off-by: Derek Basehore <dbasehore@chromium.org>

In the Makefile we use findstring to locate gcc toolchains
that have PIE enabled by default.

Unfortunately the result of findstring is compared against
an integer, 1, rather than a non-empty string; the logic to
disable PIE then doesn't get applied.

This patch fixes the flag test.

Fixes: f7ec31db

 ("Disable PIE compilation option")
Change-Id: I4cd2866974e313d6b408f9681311d78a208ab468
Signed-off-by: Steve Capper <steve.capper@arm.com>