diff options
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/serial_msm.c | 4 | ||||
| -rw-r--r-- | drivers/serial/serial_pl01x.c | 11 |
2 files changed, 12 insertions, 3 deletions
diff --git a/drivers/serial/serial_msm.c b/drivers/serial/serial_msm.c index d8dd5c1104b..ac4d0824b98 100644 --- a/drivers/serial/serial_msm.c +++ b/drivers/serial/serial_msm.c @@ -18,6 +18,7 @@ #include <asm/global_data.h> #include <asm/io.h> #include <linux/compiler.h> +#include <linux/delay.h> #include <dm/pinctrl.h> /* Serial registers - this driver works in uartdm mode*/ @@ -193,6 +194,9 @@ static int msm_uart_clk_init(struct udevice *dev) static void uart_dm_init(struct msm_serial_data *priv) { + /* Delay initialization for a bit to let pins stabilize if necessary */ + mdelay(5); + writel(priv->clk_bit_rate, priv->base + UARTDM_CSR); writel(0x0, priv->base + UARTDM_MR1); writel(MSM_BOOT_UART_DM_8_N_1_MODE, priv->base + UARTDM_MR2); diff --git a/drivers/serial/serial_pl01x.c b/drivers/serial/serial_pl01x.c index 76b96ad414c..67caa063c9a 100644 --- a/drivers/serial/serial_pl01x.c +++ b/drivers/serial/serial_pl01x.c @@ -404,8 +404,12 @@ static void _debug_uart_init(void) { #ifndef CONFIG_DEBUG_UART_SKIP_INIT struct pl01x_regs *regs = (struct pl01x_regs *)CONFIG_DEBUG_UART_BASE; - enum pl01x_type type = CONFIG_IS_ENABLED(DEBUG_UART_PL011) ? - TYPE_PL011 : TYPE_PL010; + enum pl01x_type type; + + if (IS_ENABLED(CONFIG_DEBUG_UART_PL011)) + type = TYPE_PL011; + else + type = TYPE_PL010; pl01x_generic_serial_init(regs, type); pl01x_generic_setbrg(regs, type, @@ -417,7 +421,8 @@ static inline void _debug_uart_putc(int ch) { struct pl01x_regs *regs = (struct pl01x_regs *)CONFIG_DEBUG_UART_BASE; - pl01x_putc(regs, ch); + while (pl01x_putc(regs, ch) == -EAGAIN) + ; } DEBUG_UART_FUNCS |