# RK3568 Release Note ## rk3568_ddr_{1056...324}MHz_v1.16.bin | Date | File | Build commit | Severity | | ---------- | ------------------------------------ | ------------ | --------- | | 2023-02-26 | rk3568_ddr_{1056...324}MHz_v1.16.bin | 6f71c736ce | important | ### New 1. RK3568J/RK3568M use 1/2tREFI except LPDDR4/LPDDR4x. LPDDR4/LPDDR4x use derate mode. 2. TREFI, pageclose configurable by ddrbin tool. 3. Improve DDR4 performance. ### Fixed | Index | Severity | Update | Issue description | Issue source | | ----- | --------- | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------ | | 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 | - | | 2 | important | To solve 4GB ECC board Init fail bug | 4GB DDR4 board may crash in ddrbin | | ------ ## rk3568_ddr_{1560...324}MHz_v1.15.bin | Date | File | Build commit | Severity | | ---------- | ------------------------------------ | ------------ | --------- | | 2022-11-08 | rk3568_ddr_{1560...324}MHz_v1.15.bin | ec2fae0c96 | important | ### Fixed | Index | Severity | Update | Issue description | Issue source | | ----- | --------- | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------ | | 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 | - | ------ ## rk3568_bl31_v1.36.elf | Date | File | Build commit | Severity | | ---------- | --------------------- | ------------ | --------- | | 2022-11-08 | rk3568_bl31_v1.36.elf | 2c8be93f9 | important | ### Fixed | Index | Severity | Update | Issue description | Issue source | | ----- | --------- | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------ | | 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 | - | ------ ## rk356x_usbplug_v1.16.bin | Date | File | Build commit | Severity | | ---------- | :----------------------- | ------------ | -------- | | 2022-11-02 | rk356x_usbplug_v1.16.bin | eaaeb1 | moderate | ### New 1. Support more spiflash ------ ## rk3568_bl31_v1.35.elf | Date | File | Build commit | Severity | | ---------- | :-------------------- | ------------ | --------- | | 2022-10-24 | rk3568_bl31_v1.35.elf | cddd6f52e | important | ### Fixed | Index | Severity | Update | Issue description | Issue source | | ----- | --------- | --------------------------------------------------------- | ------------------------------------------------------------ | ------------ | | 1 | important | fix the suspend/resume stability problem, the PCIE suspend fail. | Linux kernel doesn't save/restore GICR, so we need do it if vdd_logic is off in suspend. | - | ------ ## rk356{x_usbplug, 8_miniloader_spinand}_v1.15.bin | Date | File | Build commit | Severity | | ---------- | :----------------------------------------------- | ------------ | -------- | | 2022-09-26 | rk356{x_usbplug, 8_miniloader_spinand}_v1.15.bin | 65048d1 | moderate | ### New 1. Support more spiflash ------ ## rk3568_bl32_v2.09.bin | Date | File | Build commit | Severity | | ---------- | :-------------------- | ------------ | --------- | | 2022-09-16 | rk3568_bl32_v2.09.bin | d84087907 | important | ### Fixed | Index | Severity | Update | Issue description | Issue source | | ----- | --------- | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------ | | 1 | important | Solve the problem that OPTEE is stuck during startup when printing is closed | User use /rkbin/tools/ddrbin_tool to close printing , then rk_atags will notify OPTEE to disable printing, When OPTEE starts, it will be stuck and unable to enter U-Boot | - | ------ ## rk3568_ddr_{1560...324}MHz_v1.14.bin | Date | File | Build commit | Severity | | ---------- | :----------------------------------- | ------------ | --------- | | 2022-08-27 | rk3568_ddr_{1560...324}MHz_v1.14.bin | b1f29a2a6f | important | ### Fixed | Index | Severity | Update | Issue description | Issue source | | ----- | --------- | --------------------------------------------------------- | ------------------------------------------------------------ | ------------ | | 1 | important | fix some LPDDR4 stability problem | CXMT CXDB5CCAM-MK instability for 1560MHz at LPDDR4 mode. Fix this issue by set CLK/CA slew rate from 0xf to 0x0 . | - | | 2 | 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. | - | | 3 | important | fix ddr4 528M stability problem | some DRAM DLL can't lock at 528M，DLL should be bypass for 528M | - | | | important | fix ddr4 1560M stability problem | some 2 rank DDR4 PCB DQS/DQ slew rate should be set to 0x0 when running at1560MHz. | - | ------