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serial: atmel_usart: Add device tree support

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Add device tree support.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Wenyou Yang 2016-06-01 08:36:56 +08:00 committed by Andreas Bießmann
parent d3b6662086
commit c1631c8a04
1 changed files with 19 additions and 0 deletions
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19
drivers/serial/atmel_usart.c
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@ -191,16 +191,35 @@ static int atmel_serial_probe(struct udevice *dev)
{
struct atmel_serial_platdata *plat = dev->platdata;
struct atmel_serial_priv *priv = dev_get_priv(dev);
#if CONFIG_IS_ENABLED(OF_CONTROL)
fdt_addr_t addr_base;
addr_base = dev_get_addr(dev);
if (addr_base == FDT_ADDR_T_NONE)
return -ENODEV;
plat->base_addr = (uint32_t)addr_base;
#endif
priv->usart = (atmel_usart3_t *)plat->base_addr;
atmel_serial_init_internal(priv->usart);
return 0;
}
#if CONFIG_IS_ENABLED(OF_CONTROL)
static const struct udevice_id atmel_serial_ids[] = {
{ .compatible = "atmel,at91sam9260-usart" },
{ }
};
#endif
U_BOOT_DRIVER(serial_atmel) = {
.name = "serial_atmel",
.id = UCLASS_SERIAL,
#if CONFIG_IS_ENABLED(OF_CONTROL)
.of_match = atmel_serial_ids,
.platdata_auto_alloc_size = sizeof(struct atmel_serial_platdata),
#endif
.probe = atmel_serial_probe,
.ops = &atmel_serial_ops,
.flags = DM_FLAG_PRE_RELOC,