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I2C is alive yay!

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Lee Lup Yuen 2023-10-17 17:41:15 +08:00
parent 1d64915606
commit 33e41f77de
1 changed files with 5 additions and 6 deletions
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@ -7610,12 +7610,12 @@ TODO: Do we need to bother with Bus Connections?
Let's power up the I2C Controller for Star64 JH7110. Let's power up the I2C Controller for Star64 JH7110.
According to the [I2C Device Tree Configuration](https://doc-en.rvspace.org/VisionFive2/DG_I2C/JH7110_SDK/i2c_source_code.html)... According to the [I2C Device Tree Configuration](https://doc-en.rvspace.org/VisionFive2/DG_I2C/JH7110_SDK/i2c_source_code.html): I2C Base Address is 0x10030000, with range 0x10000.
I2C Base Address is 0x10030000, with range 0x10000. Let's dump the I2C Registers with U-Boot Bootloader... Let's dump the I2C Registers with U-Boot Bootloader...
```text ```bash
# md 0x10030000 $ md 0x10030000
10030000: 00000000 00000000 00000000 00000000 ................ 10030000: 00000000 00000000 00000000 00000000 ................
10030010: 00000000 00000000 00000000 00000000 ................ 10030010: 00000000 00000000 00000000 00000000 ................
10030020: 00000000 00000000 00000000 00000000 ................ 10030020: 00000000 00000000 00000000 00000000 ................
@ -7752,7 +7752,7 @@ $ md 0x13020300 1
Which says that... Which says that...
- All I2C Clocks are Disabled - All I2C Clocks are Disabled (except U5)
- All I2C Resets are Asserted (except U0 and U5) - All I2C Resets are Asserted (except U0 and U5)
@ -7766,7 +7766,6 @@ $ md 0x13020228 7
13020238: 80000000 80000000 80000000 ............ 13020238: 80000000 80000000 80000000 ............
## Deassert the I2C Resets ## Deassert the I2C Resets
$ mw 0x13020300 0xffe00fcc 1 $ mw 0x13020300 0xffe00fcc 1
$ md 0x13020300 1 $ md 0x13020300 1
13020300: ffe00fcc .... 13020300: ffe00fcc ....