mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2025-08-22 15:01:17 +02:00
601e2d4325
* changes: docs: describe the new warning levels build: add -Wunused-const-variable=2 to W=2 build: include -Wextra in generic builds docs(porting-guide): update a reference fix(st-usb): replace redundant checks with asserts fix(brcm): add braces around bodies of conditionals fix(renesas): align incompatible function pointers fix(zynqmp): remove redundant api_version check fix: remove old-style declarations fix: unify fallthrough annotations
Table for dynamic ODT for DDR4 with PHY generation 2 ==================================================== Two-slot system Only symmetric configurations are supported for interleaving. Non-symmetric configurations are possible but not covered here. First slot empty is possbile but prohibited for simplicity. +-----------------------+-------------+---------------+-----------------------------+-----------------------------+ | Configuration | |DRAM controller| Slot 1 | Slot 2 | +-----------+-----------+-------------+-------+-------+--------------+--------------+--------------+--------------+ | | | | | | Rank 1 | Rank 2 | Rank 1 | Rank 2 | | Slot 1 | Slot 2 | Write/Read | Write | Read |-------+------+-------+------+-------+------+-------+------+ | | | | | | Write | Read | Write | Read | Write | Read | Write | Read | +-----------+-----------+------+------+-------+-------+-------+------+-------+------+-------+------+-------+------+ | | | |Rank 1| off | 60 | 240 | off | 60 | 240 | 60 | 60 | 60 | 60 | | | |Slot 1|------+-------+-------+-------+------+-------+------+-------+------+-------+------+ | | | |Rank 2| off | 60 | 60 | 240 | 240 | off | 60 | 60 | 60 | 60 | | Dual Rank | Dual Rank |------+------+-------+-------+-------+------+-------+------+-------+------+-------+------+ | | | |Rank 1| off | 60 | 60 | 60 | 60 | 60 | 240 | off | 60 | 240 | | | |Slot 2|------+-------+-------+-------+------+-------+------+-------+------+-------+------+ | | | |Rank 2| off | 60 | 60 | 60 | 60 | 60 | 60 | 240 | 240 | off | +-----------+-----------+------+------+-------+-------+-------+------+-------+------+-------+------+-------+------+ | | | Slot 1 | off | 60 | 80 | off | | | | | | | |Single Rank|Single Rank|-------------+-------+-------+-------+------+-------+------+-------+------+-------+------+ | | | Slot 2 | off | 60 | | | | | 80 | off | +-----------+-----------+------+------+-------+-------+-------+------+-------+------+-------+------+ | | | |Rank 1| off | 80 | 80 | off | off | off | | Dual Rank | |Slot 1|------+-------+-------+-------+------+-------+------+ | | | |Rank 2| off | 80 | 80 | off | off | off | +-----------+-----------+-------------+-------+-------+-------+------+-------+------+ |Single Rank| | Slot 1 | off | 80 | 80 | off | +-----------+-----------+-------------+-------+-------+-------+------+