The UART can reliably go up to 2000000 baud when connected to the on-board st-link. Unfortunately u-boot will fall back to 115200 unless higher rates are declared via CONFIG_SYS_BAUDRATE_TABLE.
Signed-off-by: Alexandru Gagniuc mr.nuke.me@gmail.com Reviewed-by: Patrick Delaunay patrick.delaunay@foss.st.com --- include/configs/stm32mp1.h | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/include/configs/stm32mp1.h b/include/configs/stm32mp1.h index 06cd153d13..b12896bc07 100644 --- a/include/configs/stm32mp1.h +++ b/include/configs/stm32mp1.h @@ -16,6 +16,10 @@ #define CONFIG_ARMV7_SECURE_MAX_SIZE STM32_SYSRAM_SIZE #endif
+#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200, \ + 230400, 460800, 921600, \ + 1000000, 2000000 } + /* * Configuration of the external SRAM memory used by U-Boot */