1# RK3308 Release Note 2 3## rk3308_bl31_cpu3_v1.00.elf 4 5| Date | File | Build commit | Severity | 6| ---------- | :------------------------- | ------------ | -------- | 7| 2023-03-16 | rk3308_bl31_cpu3_v1.00.elf | 5fb7b7229 | moderate | 8 9### New 10 111. Support boot from CPU3. 12 13------ 14 15## rk3308_ddr_{589 ... 393}MHz_{uart2_m1, uart4_m0}_v2.07.bin 16 17| Date | File | Build commit | Severity | 18| ---------- | :--------------------------------------------------------- | ------------ | -------- | 19| 2022-11-29 | rk3308_ddr_{589 ... 393}MHz_{uart2_m1, uart4_m0}_v2.07.bin | 6ede97a868 | moderate | 20 21### Fixed 22 23| Index | Severity | Update | Issue description | Issue source | 24| ----- | -------- | -------------------------------------------------------- | ------------------------------------------------------------ | ------------ | 25| 1 | moderate | Improve the stability of some DDR in RK3308B/H at 393MHz | When RK3308B/H is less than 451MHz, the value of read DQS DLL delay is inaccurately configured. As a result, some DDR may be unstable at 393MHz. | - | 26 27------ 28 29## rk3308_bl31_{aarch32}_v2.26.elf 30 31| Date | File | Build commit | Severity | 32| ---------- | :------------------------------ | ------------ | --------- | 33| 2022-09-28 | rk3308_bl31_{aarch32}_v2.26.elf | 0252d5c8f | important | 34 35### Fixed 36 37| Index | Severity | Update | Issue description | Issue source | 38| ----- | --------- | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------ | 39| 1 | important | Solve the wdt reset while system suspend. Handle solution: bl31 disables pclk_wdt before sleep and resume it after wakeup. | The kernel can't disable secure pclk_wdt, it results in wdt reset. | 375529 | 40 41------ 42 43## rk3308_bl32_v2.05.bin 44 45| Date | File | Build commit | Severity | 46| ---------- | :-------------------- | ------------ | --------- | 47| 2022-09-16 | rk3308_bl32_v2.05.bin | d84087907 | important | 48 49### Fixed 50 51| Index | Severity | Update | Issue description | Issue source | 52| ----- | --------- | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------ | 53| 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 | - | 54 55------ 56 57## rk3308_{miniloader, usbplug}_v1.39.bin 58 59| Date | File | Build commit | Severity | 60| ---------- | :------------------------------------- | ------- | -------- | 61| 2022-09-08 | rk3308_{miniloader, usbplug}_v1.39.bin | 97d7a6 | moderate | 62 63### New 64 651. Check ftl super block 2nd page spare data. 66