avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/drivers/usb/host/ehci-sunxi.c

@@ -0,0 +1,114 @@
+/*
+ * Sunxi ehci glue
+ *
+ * Copyright (C) 2015 Hans de Goede <hdegoede@redhat.com>
+ * Copyright (C) 2014 Roman Byshko <rbyshko@gmail.com>
+ *
+ * Based on code from
+ * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/usb_phy.h>
+#include <asm/io.h>
+#include <dm.h>
+#include "ehci.h"
+
+#ifdef CONFIG_SUNXI_GEN_SUN4I
+#define BASE_DIST		0x8000
+#define AHB_CLK_DIST		2
+#else
+#define BASE_DIST		0x1000
+#define AHB_CLK_DIST		1
+#endif
+
+struct ehci_sunxi_priv {
+	struct ehci_ctrl ehci;
+	int ahb_gate_mask; /* Mask of ahb_gate0 clk gate bits for this hcd */
+	int phy_index;     /* Index of the usb-phy attached to this hcd */
+};
+
+static int ehci_usb_probe(struct udevice *dev)
+{
+	struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+	struct usb_platdata *plat = dev_get_platdata(dev);
+	struct ehci_sunxi_priv *priv = dev_get_priv(dev);
+	struct ehci_hccr *hccr = (struct ehci_hccr *)dev_get_addr(dev);
+	struct ehci_hcor *hcor;
+	int extra_ahb_gate_mask = 0;
+
+	/*
+	 * This should go away once we've moved to the driver model for
+	 * clocks resp. phys.
+	 */
+	priv->ahb_gate_mask = 1 << AHB_GATE_OFFSET_USB_EHCI0;
+#ifdef CONFIG_MACH_SUN8I_H3
+	extra_ahb_gate_mask = 1 << AHB_GATE_OFFSET_USB_OHCI0;
+#endif
+	priv->phy_index = ((u32)hccr - SUNXI_USB1_BASE) / BASE_DIST;
+	priv->ahb_gate_mask <<= priv->phy_index * AHB_CLK_DIST;
+	extra_ahb_gate_mask <<= priv->phy_index * AHB_CLK_DIST;
+	priv->phy_index++; /* Non otg phys start at 1 */
+
+	setbits_le32(&ccm->ahb_gate0,
+		     priv->ahb_gate_mask | extra_ahb_gate_mask);
+#ifdef CONFIG_SUNXI_GEN_SUN6I
+	setbits_le32(&ccm->ahb_reset0_cfg,
+		     priv->ahb_gate_mask | extra_ahb_gate_mask);
+#endif
+
+	sunxi_usb_phy_init(priv->phy_index);
+	sunxi_usb_phy_power_on(priv->phy_index);
+
+	hcor = (struct ehci_hcor *)((uint32_t)hccr +
+				    HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
+
+	return ehci_register(dev, hccr, hcor, NULL, 0, plat->init_type);
+}
+
+static int ehci_usb_remove(struct udevice *dev)
+{
+	struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+	struct ehci_sunxi_priv *priv = dev_get_priv(dev);
+	int ret;
+
+	ret = ehci_deregister(dev);
+	if (ret)
+		return ret;
+
+	sunxi_usb_phy_exit(priv->phy_index);
+
+#ifdef CONFIG_SUNXI_GEN_SUN6I
+	clrbits_le32(&ccm->ahb_reset0_cfg, priv->ahb_gate_mask);
+#endif
+	clrbits_le32(&ccm->ahb_gate0, priv->ahb_gate_mask);
+
+	return 0;
+}
+
+static const struct udevice_id ehci_usb_ids[] = {
+	{ .compatible = "allwinner,sun4i-a10-ehci", },
+	{ .compatible = "allwinner,sun5i-a13-ehci", },
+	{ .compatible = "allwinner,sun6i-a31-ehci", },
+	{ .compatible = "allwinner,sun7i-a20-ehci", },
+	{ .compatible = "allwinner,sun8i-a23-ehci", },
+	{ .compatible = "allwinner,sun8i-a83t-ehci", },
+	{ .compatible = "allwinner,sun8i-h3-ehci",  },
+	{ .compatible = "allwinner,sun9i-a80-ehci", },
+	{ }
+};
+
+U_BOOT_DRIVER(ehci_sunxi) = {
+	.name	= "ehci_sunxi",
+	.id	= UCLASS_USB,
+	.of_match = ehci_usb_ids,
+	.probe = ehci_usb_probe,
+	.remove = ehci_usb_remove,
+	.ops	= &ehci_usb_ops,
+	.platdata_auto_alloc_size = sizeof(struct usb_platdata),
+	.priv_auto_alloc_size = sizeof(struct ehci_sunxi_priv),
+	.flags	= DM_FLAG_ALLOC_PRIV_DMA,
+};