3 commits

Author	SHA1	Message	Date
Patrick Delaunay	d99998f76e	feat(st-uart): add initialization with the device tree ... Add the pincontrol configuration and clock enable in UART driver with information found in the device tree. This patch avoids an issue on STM32MP13x platform because the UART configuration is reset by the ROM code for UART serial boot (STM32MP_UART_PROGRAMMER=1). Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Change-Id: I575fd0e1026b857059abcfd4a3166eb3a239e1fd	2022-09-23 15:17:43 +02:00
Patrick Delaunay	1258189515	refactor(st-uart): compute the over sampling dynamically ... The parameter over_sampling of stm32_uart_init_s is not required as it can be computed dynamically from clock rate of the serial device and the requested baudrate. Oversampling by 8 is allowed only for higher speed (up to clock_rate / 8) to reduce the maximum receiver tolerance to clock deviation. This patch update the driver, the serial init struct and the only user, the stm32cubeprogrammer over uart support. Change-Id: I422731089730a288defeb7fa49886db65d0902b2 Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>	2022-09-23 15:17:43 +02:00
Nicolas Le Bayon	165ad5561e	feat(drivers/st/uart): add uart driver for STM32MP1 ... Add a UART/USART driver for STM32 with complete a hardware support; it used for STM32CubeProgrammer support with even parity. This driver is not used for console, which is already handle by a simple driver (drivers/st/uart/aarch32/stm32_console.S). Change-Id: Ia9266e5d177fe7fd09c8a15b81da1a05b1bc8b2d Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>	2021-12-03 09:26:11 +01:00