1# RK3308 Release Note 2 3## rk3308_ddr_{589 ... 393}MHz_{uart2_m1, uart4_m0}_v2.07.bin 4 5| Date | File | Build commit | Severity | 6| ---------- | :--------------------------------------------------------- | ------------ | -------- | 7| 2022-11-29 | rk3308_ddr_{589 ... 393}MHz_{uart2_m1, uart4_m0}_v2.07.bin | 6ede97a868 | moderate | 8 9### Fixed 10 11| Index | Severity | Update | Issue description | Issue source | 12| ----- | -------- | -------------------------------------------------------- | ------------------------------------------------------------ | ------------ | 13| 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. | - | 14 15------ 16 17## rk3308_bl31_{aarch32}_v2.26.elf 18 19| Date | File | Build commit | Severity | 20| ---------- | :------------------------------ | ------------ | --------- | 21| 2022-09-28 | rk3308_bl31_{aarch32}_v2.26.elf | 0252d5c8f | important | 22 23### Fixed 24 25| Index | Severity | Update | Issue description | Issue source | 26| ----- | --------- | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------ | 27| 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 | 28 29------ 30 31## rk3308_bl32_v2.05.bin 32 33| Date | File | Build commit | Severity | 34| ---------- | :-------------------- | ------------ | --------- | 35| 2022-09-16 | rk3308_bl32_v2.05.bin | d84087907 | important | 36 37### Fixed 38 39| Index | Severity | Update | Issue description | Issue source | 40| ----- | --------- | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------ | 41| 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 | - | 42 43------ 44 45## rk3308_{miniloader, usbplug}_v1.39.bin 46 47| Date | File | Build commit | Severity | 48| ---------- | :------------------------------------- | ------- | -------- | 49| 2022-09-08 | rk3308_{miniloader, usbplug}_v1.39.bin | 97d7a6 | moderate | 50 51### New 52 531. Check ftl super block 2nd page spare data