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Diffstat (limited to 'docs/plat/marvell/armada/build.rst')
| -rw-r--r-- | docs/plat/marvell/armada/build.rst | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/docs/plat/marvell/armada/build.rst b/docs/plat/marvell/armada/build.rst index 8af27b1b5..6872f56a1 100644 --- a/docs/plat/marvell/armada/build.rst +++ b/docs/plat/marvell/armada/build.rst @@ -58,6 +58,7 @@ There are several build options: - a3700 - A3720 DB, EspressoBin and Turris MOX - a70x0 - a70x0_amc - AMC board + - a70x0_mochabin - Globalscale MOCHAbin - a80x0 - a80x0_mcbin - MacchiatoBin - a80x0_puzzle - IEI Puzzle-M801 @@ -150,9 +151,42 @@ A7K/8K/CN913x specific build options: Specify path to the MSS fimware image binary which will run on Cortex-M3 coprocessor. It is available in Marvell binaries-marvell git repository. Required when ``MSS_SUPPORT=1``. +Globalscale MOCHAbin specific build options: + +- DDR_TOPOLOGY + + The DDR topology map index/name, default is 0. + + Supported Options: + - 0 - DDR4 1CS 2GB + - 1 - DDR4 1CS 4GB + - 2 - DDR4 2CS 8GB Armada37x0 specific build options: +- HANDLE_EA_EL3_FIRST + + When ``HANDLE_EA_EL3_FIRST=1``, External Aborts and SError Interrupts will be always trapped + in TF-A. TF-A in this case enables dirty hack / workaround for a bug found in U-Boot and + Linux kernel PCIe controller driver pci-aardvark.c, traps and then masks SError interrupt + caused by AXI SLVERR on external access (syndrome 0xbf000002). + + Otherwise when ``HANDLE_EA_EL3_FIRST=0``, these exceptions will be trapped in the current + exception level (or in EL1 if the current exception level is EL0). So exceptions caused by + U-Boot will be trapped in U-Boot, exceptions caused by Linux kernel (or user applications) + will be trapped in Linux kernel. + + Mentioned bug in pci-aardvark.c driver is fixed in U-Boot version v2021.07 and Linux kernel + version v5.13 (workarounded since Linux kernel version 5.9) and also backported in Linux + kernel stable releases since versions v5.12.13, v5.10.46, v5.4.128, v4.19.198, v4.14.240. + + If target system has already patched version of U-Boot and Linux kernel then it is strongly + recommended to not enable this workaround as it disallows propagating of all External Aborts + to running Linux kernel and makes correctable errors as fatal aborts. + + This option is now disabled by default. In past this option was enabled by default in + TF-A versions v2.2, v2.3, v2.4 and v2.5. + - CM3_SYSTEM_RESET When ``CM3_SYSTEM_RESET=1``, the Cortex-M3 secure coprocessor will be used for system reset. |