On 29.03.2024 01:08, Volodymyr Babchuk wrote: > Generic Interface (GENI) is a newer interface for low speed interfaces > like UART, I2C or SPI. This patch adds the simple driver for the UART > instance of GENI. Code is based on similar drivers in U-Boot and Linux > kernel. > > This driver implements only simple synchronous mode, because although > GENI supports FIFO mode, it needs to know number of > characters **before** starting TX transaction. This is a stark > contrast when compared to other UART peripherals, which allow adding > characters to a FIFO while TX operation is running. > > The patch adds both normal UART driver and earlyprintk version. > > Signed-off-by: Volodymyr Babchuk <volodymyr_babc...@epam.com> > --- > xen/arch/arm/Kconfig.debug | 19 +- > xen/arch/arm/arm64/debug-qcom.inc | 76 +++++++ > xen/arch/arm/include/asm/qcom-uart.h | 48 +++++ > xen/drivers/char/Kconfig | 8 + > xen/drivers/char/Makefile | 1 + > xen/drivers/char/qcom-uart.c | 288 +++++++++++++++++++++++++++ > 6 files changed, 439 insertions(+), 1 deletion(-) > create mode 100644 xen/arch/arm/arm64/debug-qcom.inc > create mode 100644 xen/arch/arm/include/asm/qcom-uart.h > create mode 100644 xen/drivers/char/qcom-uart.c
This last new file wants mentioning in ./MAINTAINERS'es "ARM (W/ VIRTUALISATION EXTENSIONS) ARCHITECTURE" section, I suppose. Jan
