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i2c: Add support for Qualcomm Generic Interface (GENI) I2C controller

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Add Support for the Qualcomm Generic Interface (GENI) I2C interface
found on newer Qualcomm SoCs.

The Generic Interface (GENI) is a firmware based Qualcomm Universal
Peripherals (QUP) Serial Engine (SE) Wrapper which can support multiple
bus protocols depending on the firmware type loaded at early boot time
based on system configuration.

It also supports the "I2C Master Hub" which is a single function Wrapper
that only FIFO mode I2C.

It replaces the fixed-function QUP Wrapper found on older SoCs.

The geni-se.h containing the generic GENI Serial Engine registers defines
is imported from Linux.

Only FIFO mode is implemented, neither SE DMA nor GPI DMA are implemented.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
This commit is contained in:
Neil Armstrong
2024-04-22 11:33:52 +02:00
committed by Caleb Connolly
parent d286220078
commit 75db9ede12
4 changed files with 851 additions and 0 deletions
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10
drivers/i2c/Kconfig
View File

@@ -638,6 +638,16 @@ config SYS_I2C_QUP
Technical Reference Manual, chapter "6.1 Qualcomm Universal
Peripherals Engine (QUP)".
config SYS_I2C_GENI
bool "Qualcomm Generic Interface (GENI) I2C controller"
depends on ARCH_SNAPDRAGON
help
Support for the Qualcomm Generic Interface (GENI) I2C interface.
The Generic Interface (GENI) is a firmware based Qualcomm Universal
Peripherals (QUP) Serial Engine (SE) Wrapper which can support multiple
bus protocols depending on the firmware type loaded at early boot time
based on system configuration.
config SYS_I2C_S3C24X0
bool "Samsung I2C driver"
depends on (ARCH_EXYNOS4 || ARCH_EXYNOS5) && DM_I2C