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Lee Lup Yuen 2023-08-27 18:42:26 +08:00
parent 6078b8768e
commit ae92b1bb33
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@ -6094,6 +6094,19 @@ StarFive # mw 17030044 0x50 1
StarFive #
StarFive # md 17030080 1
17030080: 00000013 ....
```
_Is the Display Controller now powered up?_
From U-Boot Log above, the [Current Power Mode](https://doc-en.rvspace.org/JH7110/TRM/JH7110_TRM/register_info_pmu.html) (0x17030080) is 0x13, which means...
- Bit 0 (systop_power_mode): SYSTOP Power is Enabled
- Bit 1 (cpu_power_mode): CPU Power is Enabled
- Bit 4 (vout_power_mode): VOUT Power is Enabled
But the Display Controller Registers are still missing...
```text
StarFive # md 29400000 0x40
29400000: 00000000 00000000 00000000 00000000 ................
29400010: 00000000 00000000 00000000 00000000 ................
@ -6182,7 +6195,7 @@ StarFive # md 295C0000 0x40
StarFive #
```
Hmmm the Display Controller Registers are still missing. Let's poke the Clock and Reset Registers...
Let's poke the Clock and Reset Registers...
# Clock and Reset Registers for Star64 JH7110 Display Controller