aboutsummaryrefslogtreecommitdiffstats
path: root/docs
diff options
context:
space:
mode:
Diffstat (limited to 'docs')
-rw-r--r--docs/plat/meson-gxbb.rst26
-rw-r--r--docs/plat/stm32mp1.rst16
-rw-r--r--docs/user-guide.rst4
3 files changed, 46 insertions, 0 deletions
diff --git a/docs/plat/meson-gxbb.rst b/docs/plat/meson-gxbb.rst
new file mode 100644
index 000000000..f909e9933
--- /dev/null
+++ b/docs/plat/meson-gxbb.rst
@@ -0,0 +1,26 @@
+Trusted Firmware-A for Amlogic Meson S905 (GXBB)
+================================================
+
+The Amlogic Meson S905 is a SoC with a quad core Arm Cortex-A53 running at
+1.5Ghz. It also contains a Cortex-M3 used as SCP.
+
+This port is a minimal implementation of BL31 capable of booting mainline U-Boot
+and Linux:
+
+- SCPI support.
+- Basic PSCI support (CPU_ON, CPU_OFF, SYSTEM_RESET, SYSTEM_OFF). Note that CPU0
+ can't be turned off, so there is a workaround to hide this from the caller.
+- GICv2 driver set up.
+- Basic SIP services (read efuse data, enable/disable JTAG).
+
+In order to build it:
+
+::
+
+ CROSS_COMPILE=aarch64-linux-gnu- make DEBUG=1 PLAT=gxbb bl31
+
+This port has been tested in a ODROID-C2. After building it, follow the
+instructions in the `U-Boot repository`_, replacing the mentioned **bl31.bin**
+by the one built from this port.
+
+.. _U-Boot repository: https://github.com/u-boot/u-boot/blob/master/board/amlogic/odroid-c2/README
diff --git a/docs/plat/stm32mp1.rst b/docs/plat/stm32mp1.rst
index 9e731a419..f8379b4eb 100644
--- a/docs/plat/stm32mp1.rst
+++ b/docs/plat/stm32mp1.rst
@@ -76,7 +76,23 @@ To build:
.. code:: bash
make CROSS_COMPILE=arm-linux-gnueabihf- PLAT=stm32mp1 ARCH=aarch32 ARM_ARCH_MAJOR=7 AARCH32_SP=sp_min
+ cd <u-boot_directory>
+ make stm32mp15_basic_defconfig
+ make DEVICE_TREE=stm32mp157c_ev1 all
+ ./tools/mkimage -T stm32image -a 0xC0100000 -e 0xC0100000 -d u-boot.bin u-boot.stm32
The following build options are supported:
- ``ENABLE_STACK_PROTECTOR``: To enable the stack protection.
+
+
+Populate SD-card
+----------------
+
+The SD-card has to be formated with GPT.
+It should contain at least those partitions:
+
+- fsbl: to copy the tf-a-stm32mp157c-ev1.stm32 binary
+- ssbl: to copy the u-boot.stm32 binary
+
+Usually, two copies of fsbl are used (fsbl1 and fsbl2) instead of one partition fsbl.
diff --git a/docs/user-guide.rst b/docs/user-guide.rst
index f4ef85d2a..52cb45c09 100644
--- a/docs/user-guide.rst
+++ b/docs/user-guide.rst
@@ -371,6 +371,10 @@ Common build options
partitioning in EL3, however. Platform initialisation code should configure
and use partitions in EL3 as required. This option defaults to ``0``.
+- ``ENABLE_PIE``: Boolean option to enable Position Independent Executable(PIE)
+ support within generic code in TF-A. This option is currently only supported
+ in BL31. Default is 0.
+
- ``ENABLE_PMF``: Boolean option to enable support for optional Performance
Measurement Framework(PMF). Default is 0.