X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fgpio%2Ftegra_gpio.c;h=4921f0ff42e9706957ae6ca785187a3dcfc8e9ec;hb=42c91c10c52a3f3512ad5c5e906bc118349bbff5;hp=88f7ef5bf04d9abce9605cd7e8e161a11b135a8d;hpb=1fba907f9a8d178eee960294ecffc8ee8bc6b00d;p=oweals%2Fu-boot.git

diff --git a/drivers/gpio/tegra_gpio.c b/drivers/gpio/tegra_gpio.c
index 88f7ef5bf0..4921f0ff42 100644
--- a/drivers/gpio/tegra_gpio.c
+++ b/drivers/gpio/tegra_gpio.c
@@ -21,6 +21,7 @@
 #include <asm/arch/tegra.h>
 #include <asm/gpio.h>
 #include <dm/device-internal.h>
+#include <dt-bindings/gpio/gpio.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -131,21 +132,6 @@ static void set_level(unsigned gpio, int high)
 	writel(u, &bank->gpio_out[GPIO_PORT(gpio)]);
 }
 
-/* set GPIO pin 'gpio' as an output, with polarity 'value' */
-int tegra_spl_gpio_direction_output(int gpio, int value)
-{
-	/* Configure as a GPIO */
-	set_config(gpio, 1);
-
-	/* Configure GPIO output value. */
-	set_level(gpio, value);
-
-	/* Configure GPIO direction as output. */
-	set_direction(gpio, 1);
-
-	return 0;
-}
-
 /*
  * Generic_GPIO primitives.
  */
@@ -251,6 +237,22 @@ static int tegra_gpio_get_function(struct udevice *dev, unsigned offset)
 		return GPIOF_INPUT;
 }
 
+static int tegra_gpio_xlate(struct udevice *dev, struct gpio_desc *desc,
+			    struct fdtdec_phandle_args *args)
+{
+	int gpio, port, ret;
+
+	gpio = args->args[0];
+	port = gpio / TEGRA_GPIOS_PER_PORT;
+	ret = device_get_child(dev, port, &desc->dev);
+	if (ret)
+		return ret;
+	desc->offset = gpio % TEGRA_GPIOS_PER_PORT;
+	desc->flags = args->args[1] & GPIO_ACTIVE_LOW ? GPIOD_ACTIVE_LOW : 0;
+
+	return 0;
+}
+
 static const struct dm_gpio_ops gpio_tegra_ops = {
 	.request		= tegra_gpio_request,
 	.direction_input	= tegra_gpio_direction_input,
@@ -258,6 +260,7 @@ static const struct dm_gpio_ops gpio_tegra_ops = {
 	.get_value		= tegra_gpio_get_value,
 	.set_value		= tegra_gpio_set_value,
 	.get_function		= tegra_gpio_get_function,
+	.xlate			= tegra_gpio_xlate,
 };
 
 /**
@@ -292,7 +295,7 @@ static const struct udevice_id tegra_gpio_ids[] = {
 
 static int gpio_tegra_probe(struct udevice *dev)
 {
-	struct gpio_dev_priv *uc_priv = dev->uclass_priv;
+	struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);
 	struct tegra_port_info *priv = dev->priv;
 	struct tegra_gpio_platdata *plat = dev->platdata;
 
@@ -320,12 +323,19 @@ static int gpio_tegra_bind(struct udevice *parent)
 	int bank_count;
 	int bank;
 	int ret;
-	int len;
 
 	/* If this is a child device, there is nothing to do here */
 	if (plat)
 		return 0;
 
+	/* TODO(sjg@chromium.org): Remove once SPL supports device tree */
+#ifdef CONFIG_SPL_BUILD
+	ctlr = (struct gpio_ctlr *)NV_PA_GPIO_BASE;
+	bank_count = TEGRA_GPIO_BANKS;
+#else
+	{
+	int len;
+
 	/*
 	 * This driver does not make use of interrupts, other than to figure
 	 * out the number of GPIO banks
@@ -333,8 +343,9 @@ static int gpio_tegra_bind(struct udevice *parent)
 	if (!fdt_getprop(gd->fdt_blob, parent->of_offset, "interrupts", &len))
 		return -EINVAL;
 	bank_count = len / 3 / sizeof(u32);
-	ctlr = (struct gpio_ctlr *)fdtdec_get_addr(gd->fdt_blob,
-						   parent->of_offset, "reg");
+	ctlr = (struct gpio_ctlr *)dev_get_addr(parent);
+	}
+#endif
 	for (bank = 0; bank < bank_count; bank++) {
 		int port;
 
@@ -370,4 +381,5 @@ U_BOOT_DRIVER(gpio_tegra) = {
 	.probe = gpio_tegra_probe,
 	.priv_auto_alloc_size = sizeof(struct tegra_port_info),
 	.ops	= &gpio_tegra_ops,
+	.flags	= DM_FLAG_PRE_RELOC,
 };