plat: imx: common: implement IMX_SIP_AARCH32 ...

Implement IMX_SIP_AARCH32 to let AArch64 Bootloader could issue
SIP call to switch to AArch32 mode to run OS.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Change-Id: I38b04ef909a6dbfba5ded12a7bb6e799a3935a66

plat: imx: imx8_iomux: fix shift-overflow errors ...

This fixes shift overflow errors, when compiled with CONSOLE_DEBUG
support:

plat/imx/common/include/imx8_iomux.h:11:35: error: result of ‘1 << 31’
requires 33 bits to represent, but ‘int’ only has 32 bits
[-Werror=shift-overflow=]

Signed-off-by: Igor Opaniuk <igor.opaniuk@gmail.com>
Change-Id: I0488e22c30314ba27caabc5c767164baa1e8004c

imx: console: Use CONSOLE_T_BASE for UART base address ...

Since commit ac71344e9eca we have the UART base address in the generic
console_t structure. For most platforms the platform-specific struct
console is gone, so we *must* use the embedded base address, since there
is no storage behind the generic console_t anymore.

Replace the usage of CONSOLE_T_DRVDATA with CONSOLE_T_BASE to fix this.

Change-Id: I6d2ab0bc2c845c71f98b9dd64d89eef3252f4591
Reported-by: Varun Wadekar <vwadekar@nvidia.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

imx: Use generic console_t data structure ...

Since now the generic console_t structure holds the UART base address as
well, let's use that generic location and drop the UART driver specific
data structure at all.

Change-Id: I058f793e4024fa7291e432f5be374a77faf16f36
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

Merge changes Ib1ed9786,I6c4855c8 into integration ...

* changes:
  plat: imx: Correct the SGIs that used for secure interrupt
  plat: imx8mm: Add the support for opteed spd on imx8mq/imx8mm

imx: Fix multiple definition of ipc_handle ...

This is not conforming C and does not compile with -fno-common.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: I6535954cc567d6efa06919069b91e3f50975b073

imx: Fix missing inclusion of cdefs.h ...

This was found by compiling with -fno-common:

./build/picopi/release/bl2/imx_snvs.o:(.bss.__packed+0x0): multiple definition of `__packed';
./build/picopi/release/bl2/imx_caam.o:(.bss.__packed+0x0): first defined here

__packed was intended to be the attribute macro from cdefs.h, not an
object of the structure type.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Id02fac3f098be2d71c35c6b4a18012515532f32a

plat: imx: Correct the SGIs that used for secure interrupt ...

Normally, SGI6 & SGI7 is used by non-secure world, these
two SGIs should not be reserved for secure interrupt purpose.
On i.MX8M platform, SGI8 is used for secure group0 IPI for
DDR DVFS, So update the code to reserve SGI8 for secure world.

Change-Id: Ib1ed9786e0a79bb729b120a0d4d791d13b6f048a
Signed-off-by: Jacky Bai <ping.bai@nxp.com>

Replace __ASSEMBLY__ with compiler-builtin __ASSEMBLER__ ...

NOTE: __ASSEMBLY__ macro is now deprecated in favor of __ASSEMBLER__.

All common C compilers predefine a macro called __ASSEMBLER__ when
preprocessing a .S file. There is no reason for TF-A to define it's own
__ASSEMBLY__ macro for this purpose instead. To unify code with the
export headers (which use __ASSEMBLER__ to avoid one extra dependency),
let's deprecate __ASSEMBLY__ and switch the code base over to the
predefined standard.

Change-Id: Id7d0ec8cf330195da80499c68562b65cb5ab7417
Signed-off-by: Julius Werner <jwerner@chromium.org>

Merge changes from topic "jun-add-imx7-pico" into integration ...

* changes:
  plat: imx7: Add PicoPi iMX7D basic support
  plat: imx7: refactor code for reuse

plat: imx7: Add PicoPi iMX7D basic support ...

The PicoPi iMX7D is a 2 board development board consisting of
a System-on-Module and a carrier baseboard and optimized for
the Internet-of-Things (IoT).

This patch add basic support to this board.

Signed-off-by: Jun Nie <jun.nie@linaro.org>
Reviewed-by: Louis Mayencourt <louis.mayencourt@arm.com>
Change-Id: I009d85819c4f73b7063aab73d0f6ee74e6ef3fc4

plat: imx7: refactor code for reuse ...

For the iMX7 SOCs, part of the code for platform
setup implementation can be reused and made
common for all these SoCs. This patch extracts
the common part for reuse.

Signed-off-by: Jun Nie <jun.nie@linaro.org>
Change-Id: I42fd4167e6903416df96a0159a046abf3896e878

Update imx platform to not rely on undefined overflow behaviour ...

This consists of ensuring that the left operand of each shift is
unsigned when the operation might overflow into the sign bit.

Change-Id: Ia0a10b4a30e63c0cbf1d0f8dfe5768e0a93ae1c7
Signed-off-by: Justin Chadwell <justin.chadwell@arm.com>

imx8: Replace PLAT_IMX8* with automatic PLAT_imx8* ...

Platform defines are already provided by the build system so let's not
duplicate them.

Change-Id: Icf1ea76c3c3213e27b447c95e2b22b961fa7693e
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>

plat: imx8mq: Implement IMX_SIP_GET_SOC_INFO ...

The manual documents that 0x3036006c should contains the soc revision
for imx8mq but this always reports A0. Work around this by parsing the
ROM header and checking if OCOTP register 0x40 is stuck at 0xff0055aa.

Determining this inside TF-A makes life easier for OS, see for example
this linux discussion: https://lkml.org/lkml/2019/5/3/465

The soc revision can also be useful inside TF-A itself, for example for
the non-upstream DDR DVFS "busfreq" feature is affected by 8mq erratas.

The clock for OCOTP block can be disabled by OS so only initialize soc
revision once at boot time.

Change-Id: I9ca3f27840229ce8a28b53870e44da29f63c73aa
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>

plat: imx8m: Implement IMX_SIP_BUILDINFO ...

The IMX_SIP_BUILDINFO call was implemented for imx8qm and imx8qx but
it's also applicable to imx8m.

This fixes U-Boot not printing commit hash on 8m with upstream TF-A.

Change-Id: Idcfd9729eaaccf329c24e241da325f1f6cd3c880
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>

Makefile: remove extra include paths in INCLUDES ...

Now it is needed to use the full path of the common header files.

Commit 09d40e0e0828 ("Sanitise includes across codebase") provides more
information.

Change-Id: Ifedc79d9f664d208ba565f5736612a3edd94c647
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>

Console: remove deprecated finish_console_register ...

The old version of the macro is deprecated.

Commit cc5859ca19ff ("Multi-console: Deprecate the
`finish_console_register` macro") provides more details.

Change-Id: I3d1cdf6496db7d8e6cfbb5804f508ff46ae7e67e
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>

imx: make sure GIC redistributor is awake before initialization ...

GICR_WAKER.ProcessorSleep can only be set to zero when:
— GICR_WAKER.Sleep bit[0] == 0.
— GICR_WAKER.Quiescent bit[31] == 0.

On some platforms, when system reboot with GIC in sleep
mode but with power ON, such as on NXP's i.MX8QM, Linux
kernel enters suspend but could be requested to reboot,
and GIC is in sleep mode and it is inside a power domain
which is ON in this scenario, when CPU reset, the GIC
driver trys to set CORE's redistributor interface to awake,
with GICR_WAKER.Sleep bit[0] and GICR_WAKER.Quiescent bit[31]
both set, the ProcessorSleep bit[1] will never be clear
and cause system hang.

This patch makes sure GICR_WAKER.Sleep bit[0] and
GICR_WAKER.Quiescent bit[31] are both zeor before clearing
ProcessorSleep bit[1].

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

imx: warp7: Migrate to MULTI_CONSOLE_API ...

This commit migrates to MULTI_CONSOLE_API for IMX Warp7 board.
We also rename the functions in imx_uart driver to more specific one.

Signed-off-by: Ying-Chun Liu (PaulLiu) <paulliu@debian.org>

imx: power optimization for i.mx8qm ...

Current implementation of i.MX8QM power management related
features does NOT optimize power number, all system resources
like CCI, DDR, and A cluster etc. are kept in STBY mode (powered
ON) when system suspend or CPU hotplug.

To lower the power number, OFF mode should be adopted for those
system resources whenever they can be OFF, A cluster will be OFF
if the CPUs in the cluster are all off line, DDR/MU/DB can be OFF
if system suspend, IRQ steer can be OFF if the wakeup source is
belonged to system controller partition, so wakeup source runtime
check is used to determine if IRQ steer can be OFF before system
suspend.

If resources are powered off for suspend, they should be restored
properly after system resume.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

imx: add i.MX8 SoCs build info SIP(silicon provider) service support ...

This patch adds NXP i.MX8 SoCs' build info SIP support for easy debug.
With this function enabled, TF-A's commit hash can be showed in u-boot
debug console when booting up, when there is any issue which could be
related to TF-A, users can use the commit hash value to easily identify
which commit introduces the issue.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

imx: add i.MX8 SoCs thermal alarm SIP(silicon provider) service support ...

For NXP's i.MX8 SoCs with system controller inside, thermal sensors
are maintained by SCFW, Linux needs to call SMC to trap to TF-A for
thermal alarm operation etc. by calling SCFW API.

This patch adds temperature alarm SIP service support.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

imx: add i.MX8 SoCs OTP SIP(silicon provider) service support ...

For NXP's i.MX8 SoCs with system controller inside, OTP is
maintained by SCFW, Linux needs to call SMC to trap to TF-A
for OTP read/write etc. operations by calling SCFW API.

This patch adds OTP SIP service support.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

imx: support for i.MX8 SoCs misc IPC ...

NXP's i.MX8 SoCs have system controller (M4 core) which takes
control of misc functions like temperature alarm, dma etc., other
Cortex-A clusters can send out command via MU (Message Unit) to
system controller for misc operation etc..

This patch adds misc IPC(inter-processor communication) support.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

imx: add wakeup source SIP runtime service support ...

On i.MX8QM/i.MX8QX with system controller inside, the wakeup
source is managed in SCFW(system controller firmware), if the
wakeup source is belonged to system controller partition, then
before Linux suspend, the wakeup source should be set to
SC_PM_WAKE_SRC_SCU, and if the wakeup source is belonged to
Cortex-A partition, the wakeup source should be set to
SC_PM_WAKE_SRC_IRQSTEER, so need to add wakeup source SIP runtime
service to get Linux kernel's wakeup source and set the correct
wakeup source for system controller.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

imx: add cpu-freq SIP runtime service support ...

On i.MX8QM/i.MX8QX with system controller inside, the CPU's clock
rate is managed by SCFW(system controller firmware) and can ONLY be
changed from secure world, so SIP runtime service is needed for
setting CPU's clock rate, this patch adds cpu-freq SIP runtime service
support.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

imx: add imx8qm/imx8qx SRTC SIP runtime service support ...

On i.MX8QM/i.MX8QX with system controller inside, the SRTC is
managed by SCFW(system controller firmware) and some functions
like setting SRTC's time etc. can ONLY be requested from secure
world, so SIP runtime service is needed for such kind of operations,
this patch adds SRTC SIP runtime service support for i.MX8QM and
i.MX8QX.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

Support for NXP's i.MX8 SoCs timer IPC ...

NXP's i.MX8 SoCs have system controller (M4 core) which takes
control of timer management, including watchdog, srtc and system
counter etc., other clusters like Cortex-A35 can send out command
via MU (Message Unit) to system controller for timer operation.

This patch adds timer IPC(inter-processor communication) support.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

imx: make imx uart work for debug mode ...

With DEBUG_CONSOLE enabled, build will fail for imx8mq platform:

./build/imx8mq/release/bl31/imx8mq_bl31_setup.o:
In function `bl31_early_platform_setup2':
imx8mq_bl31_setup.c:(.text.bl31_early_platform_setup2+0x40):
	undefined reference to `console_uart_register'
Makefile:741: recipe for target 'build/imx8mq/release/bl31/bl31.elf' failed
make: *** [build/imx8mq/release/bl31/bl31.elf] Error 1

Besides, the .console_flush callback needs to be added to avoid
panic when debug mode is enabled, since the console_flush() will
call it without checking whether the function callback is valid.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>