Add the device tree support.
Signed-off-by: Wenyou Yang <wenyou.y...@atmel.com>
---
drivers/gpio/at91_gpio.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/gpio/at91_gpio.c b/drivers/gpio/at91_gpio.c
index 8e52e3d..23b2dc3 100644
--- a/drivers/gpio/at91_gpio.c
+++ b/drivers/gpio/at91_gpio.c
@@ -520,14 +520,29 @@ static int at91_gpio_probe(struct udevice *dev)
uc_priv->bank_name = plat->bank_name;
uc_priv->gpio_count = GPIO_PER_BANK;
+
+#if CONFIG_IS_ENABLED(OF_CONTROL)
+ plat->base_addr = (uint32_t)dev_get_addr_ptr(dev);
+#endif
port->regs = (struct at91_port *)plat->base_addr;
return 0;
}
+#if CONFIG_IS_ENABLED(OF_CONTROL)
+static const struct udevice_id at91_gpio_ids[] = {
+ { .compatible = "atmel,at91rm9200-gpio" },
+ { }
+};
+#endif
+
U_BOOT_DRIVER(gpio_at91) = {
.name = "gpio_at91",
.id = UCLASS_GPIO,
+#if CONFIG_IS_ENABLED(OF_CONTROL)
+ .of_match = at91_gpio_ids,
+ .platdata_auto_alloc_size = sizeof(struct at91_port_platdata),
+#endif
.ops = &gpio_at91_ops,
.probe = at91_gpio_probe,
.priv_auto_alloc_size = sizeof(struct at91_port_priv),
--
2.7.4
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