diff options
Diffstat (limited to 'drivers/serial/serial_stm32.c')
| -rw-r--r-- | drivers/serial/serial_stm32.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/serial/serial_stm32.c b/drivers/serial/serial_stm32.c index 31b43ee88d..e31c87b9ac 100644 --- a/drivers/serial/serial_stm32.c +++ b/drivers/serial/serial_stm32.c @@ -7,6 +7,7 @@ #include <common.h> #include <clk.h> #include <dm.h> +#include <reset.h> #include <serial.h> #include <watchdog.h> #include <asm/io.h> @@ -171,6 +172,7 @@ static int stm32_serial_probe(struct udevice *dev) { struct stm32x7_serial_platdata *plat = dev_get_platdata(dev); struct clk clk; + struct reset_ctl reset; int ret; plat->uart_info = (struct stm32_uart_info *)dev_get_driver_data(dev); @@ -185,6 +187,13 @@ static int stm32_serial_probe(struct udevice *dev) return ret; } + ret = reset_get_by_index(dev, 0, &reset); + if (!ret) { + reset_assert(&reset); + udelay(2); + reset_deassert(&reset); + } + plat->clock_rate = clk_get_rate(&clk); if (plat->clock_rate < 0) { clk_disable(&clk); |