1# RK3568 Release Note 2 3## rk3568_bl31_v1.38.elf 4 5| Date | File | Build commit | Severity | 6| ---------- | --------------------- | ------------ | --------- | 7| 2023-02-16 | rk3568_bl31_v1.38.elf | 94b2d40dc | important | 8 9### New 10 111. Improve the stability of sdei. 12 13------ 14 15## rk3568_bl31_v1.37.elf 16 17| Date | File | Build commit | Severity | 18| ---------- | --------------------- | ------------ | --------- | 19| 2023-02-02 | rk3568_bl31_v1.37.elf | 1cd72fefa | important | 20 21### New 22 231. Enable sdei. 242. Support config l3 partition according to atags. 25 26------ 27 28## rk3568_ddr_{1560...324}MHz_v1.15.bin 29 30| Date | File | Build commit | Severity | 31| ---------- | ------------------------------------ | ------------ | --------- | 32| 2022-11-08 | rk3568_ddr_{1560...324}MHz_v1.15.bin | ec2fae0c96 | important | 33 34### Fixed 35 36| Index | Severity | Update | Issue description | Issue source | 37| ----- | --------- | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------ | 38| 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 | - | 39 40------ 41 42## rk3568_bl31_v1.36.elf 43 44| Date | File | Build commit | Severity | 45| ---------- | --------------------- | ------------ | --------- | 46| 2022-11-08 | rk3568_bl31_v1.36.elf | 2c8be93f9 | important | 47 48### Fixed 49 50| Index | Severity | Update | Issue description | Issue source | 51| ----- | --------- | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------ | 52| 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 | - | 53 54------ 55 56## rk356x_usbplug_v1.16.bin 57 58| Date | File | Build commit | Severity | 59| ---------- | :----------------------- | ------------ | -------- | 60| 2022-11-02 | rk356x_usbplug_v1.16.bin | eaaeb1 | moderate | 61 62### New 63 641. Support more spiflash. 65 66------ 67 68## rk3568_bl31_v1.35.elf 69 70| Date | File | Build commit | Severity | 71| ---------- | :-------------------- | ------------ | --------- | 72| 2022-10-24 | rk3568_bl31_v1.35.elf | cddd6f52e | important | 73 74### Fixed 75 76| Index | Severity | Update | Issue description | Issue source | 77| ----- | --------- | --------------------------------------------------------- | ------------------------------------------------------------ | ------------ | 78| 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. | - | 79 80------ 81 82## rk356{x_usbplug, 8_miniloader_spinand}_v1.15.bin 83 84| Date | File | Build commit | Severity | 85| ---------- | :----------------------------------------------- | ------------ | -------- | 86| 2022-09-26 | rk356{x_usbplug, 8_miniloader_spinand}_v1.15.bin | 65048d1 | moderate | 87 88### New 89 901. Support more spiflash. 91 92------ 93 94## rk3568_bl32_v2.09.bin 95 96| Date | File | Build commit | Severity | 97| ---------- | :-------------------- | ------------ | --------- | 98| 2022-09-16 | rk3568_bl32_v2.09.bin | d84087907 | important | 99 100### Fixed 101 102| Index | Severity | Update | Issue description | Issue source | 103| ----- | --------- | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------ | 104| 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 | - | 105 106------ 107 108## rk3568_ddr_{1560...324}MHz_v1.14.bin 109 110| Date | File | Build commit | Severity | 111| ---------- | :----------------------------------- | ------------ | --------- | 112| 2022-08-27 | rk3568_ddr_{1560...324}MHz_v1.14.bin | b1f29a2a6f | important | 113 114### Fixed 115 116| Index | Severity | Update | Issue description | Issue source | 117| ----- | --------- | --------------------------------------------------------- | ------------------------------------------------------------ | ------------ | 118| 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 . | - | 119| 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. | - | 120| 3 | important | fix ddr4 528M stability problem | some DRAM DLL can't lock at 528M，DLL should be bypass for 528M | - | 121| | important | fix ddr4 1560M stability problem | some 2 rank DDR4 PCB DQS/DQ slew rate should be set to 0x0 when running at1560MHz. | - | 122 123------ 124