This patch adds an alterative SPL version of atmel_serial_enable_clk(). This enables the usage of this driver without full clock support (in drivers and DT nodes). This saves some space in the SPL image.
If some boards need a different clock than the one provided with this patch, then support for this needs to be added later.
Signed-off-by: Stefan Roese sr@denx.de Cc: Heiko Schocher hs@denx.de Cc: Andreas Bießmann andreas@biessmann.org Cc: Eugen Hristev eugen.hristev@microchip.com --- drivers/serial/atmel_usart.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/serial/atmel_usart.c b/drivers/serial/atmel_usart.c index aa8cdff840..049172baef 100644 --- a/drivers/serial/atmel_usart.c +++ b/drivers/serial/atmel_usart.c @@ -218,6 +218,17 @@ static const struct dm_serial_ops atmel_serial_ops = { .setbrg = atmel_serial_setbrg, };
+#ifdef CONFIG_SPL_BUILD +static int atmel_serial_enable_clk(struct udevice *dev) +{ + struct atmel_serial_priv *priv = dev_get_priv(dev); + + /* Use fixed clock value in SPL */ + priv->usart_clk_rate = 132096000; + + return 0; +} +#else static int atmel_serial_enable_clk(struct udevice *dev) { struct atmel_serial_priv *priv = dev_get_priv(dev); @@ -245,6 +256,7 @@ static int atmel_serial_enable_clk(struct udevice *dev)
return 0; } +#endif
static int atmel_serial_probe(struct udevice *dev) {