drivers: i2c: Introduce GD32 I2C driver #41506
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nandojve
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Use i2c_gd32_reg_dump() to track i2c runtime state, looks it can help us to learn how the i2c work. |
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I think i2c functional work is done, only some document work left. |
teburd
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Jan 4, 2022
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The following west manifest projects have been modified in this Pull Request:
Note: This message is automatically posted and updated by the Manifest GitHub Action. |
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gmarull
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Jan 10, 2022
gmarull
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Jan 10, 2022
upgrade hal_gigadevice to get i2c clock frequency boundary definition. Signed-off-by: HaiLong Yang <[email protected]>
Add gd32 i2c interface support. Signed-off-by: HaiLong Yang <[email protected]>
gmarull
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Jan 10, 2022
cameled
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Jan 11, 2022
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@nandojve please take a look |
gmarull
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Jan 13, 2022
Add an interrupt driven i2c driver for gd32 i2c peripheral. The transmit and reception method refer from GD32 SoCs user manual. Particularly, reception method choose the solution B. There have some wait for state ready logic in the driver. It cause by i2c device internal state change slower than i2c driver. Signed-off-by: HaiLong Yang <[email protected]>
Add i2c0 interface to gd32f450i_eval board. Signed-off-by: HaiLong Yang <[email protected]>
Add gd32f450i_eval board with AT2402C eeprom. Signed-off-by: HaiLong Yang <[email protected]>
gmarull
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Jan 13, 2022
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Add a interrupt driven gd32 i2c driver.
Support transfer mode: Standard-mode, Fast-mode and Fast-mode Puls.
For GD32 SoCs, normally Standard-mode and Fast-mode are supported. Some SoCs, like GD32VF103xx, support Fast-mode Puls too. Since Standard-mode(up to 100kbit/s) and Fast-mode(up to 400kbit/s) is too slow, I use the interrupts to driven the data transfer.
There still have some known issue which list in below:
More GD32 work #38657