1# RK3566 Release Note 2 3## rk3566_ddr_{1056...324}MHz_v1.17.bin 4 5| Date | File | Build commit | Severity | 6| ---------- | ------------------------------------ | ------------ | --------- | 7| 2023-06-20 | rk3566_ddr_{1056...324}MHz_v1.17.bin | 992b933606 | important | 8 9### New 10 111. Added support for 4rank LPDDR3/LPDDR4/LPDDR4x of different rows. 122. Enable derate function for LPDDR4/LPDDR4x. 13 14------ 15 16## rk3566_ddr_1056MHz_eyescan_v1.16.bin 17 18| Date | File | Build commit | Severity | 19| ---------- | :----------------------------------- | ------------ | --------- | 20| 2023-04-19 | rk3566_ddr_1056MHz_eyescan_v1.16.bin | b9c108a4eb | important | 21 22### New 23 241. Add RK3566 2D eye scan support. 25 26------ 27 28## rk3566_ddr_{1056...324}MHz_v1.16.bin 29 30| Date | File | Build commit | Severity | 31| ---------- | ------------------------------------ | ------------ | --------- | 32| 2022-11-16 | rk3566_ddr_{1056...324}MHz_v1.16.bin | 6f71c736ce | important | 33 34### New 35 361. RK3568J/RK3568M use 1/2tREFI except LPDDR4/LPDDR4x. LPDDR4/LPDDR4x use derate mode. 372. TREFI, pageclose configurable by ddrbin tool. 383. Improve DDR4 performance. 39 40### Fixed 41 42| Index | Severity | Update | Issue description | Issue source | 43| ----- | --------- | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------ | 44| 1 | important | To solve the instability problem of some ddr4 when DDR run in 528MHz. | When DDR4 run in 528MHz, the system would unstable, causing a crash and restart | - | 45| 2 | important | To solve 4GB ECC board Init fail bug | 4GB DDR4 board may crash in ddrbin | | 46 47------ 48 49## rk3566_ddr_{1056...324}MHz_v1.15.bin 50 51| Date | File | Build commit | Severity | 52| ---------- | ------------------------------------ | ------------ | --------- | 53| 2022-11-08 | rk3566_ddr_{1056...324}MHz_v1.15.bin | ec2fae0c96 | important | 54 55### Fixed 56 57| Index | Severity | Update | Issue description | Issue source | 58| ----- | --------- | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------ | 59| 1 | important | To solve the instability problem of some chips when DDR run in 324MHz. | When DDR run in 324MHz, the system would unstable, causing a crash and restart | - | 60 61------ 62 63## rk3566_ddr_{1056...324}MHz_v1.14.bin 64 65| Date | File | Build commit | Severity | 66| ---------- | :----------------------------------- | ------------ | --------- | 67| 2022-08-27 | rk3566_ddr_{1056...324}MHz_v1.14.bin | b1f29a2a6f | important | 68 69### Fixed 70 71| Index | Severity | Update | Issue description | Issue source | 72| ----- | --------- | --------------------------------------------------------- | ------------------------------------------------------------ | ------------ | 73| 1 | moderate | fix Fix set of t_xs_x32, t_xs_abort_x32 and t_xs_fast_x32 | Fix set of t_xs_x32, t_xs_abort_x32 and t_xs_fast_x32.This bug may lead to some low density dram(128M) fail. | - | 74| 2 | important | fix ddr4 528M stability problem | some DRAM DLL can't lock at 528M，DLL should be bypass for 528M | - | 75 76------ 77