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-rw-r--r--target/linux/sunxi/patches-3.12/153-add-sunxi-ehci.patch499
1 files changed, 0 insertions, 499 deletions
diff --git a/target/linux/sunxi/patches-3.12/153-add-sunxi-ehci.patch b/target/linux/sunxi/patches-3.12/153-add-sunxi-ehci.patch
deleted file mode 100644
index 8a78c2d..0000000
--- a/target/linux/sunxi/patches-3.12/153-add-sunxi-ehci.patch
+++ /dev/null
@@ -1,499 +0,0 @@
-From b84d49247eb062672a56ce15f1c08f792099de97 Mon Sep 17 00:00:00 2001
-From: arokux <arokux@gmail.com>
-Date: Wed, 18 Sep 2013 21:45:03 +0200
-Subject: [PATCH] ARM: sunxi: usb: Add Allwinner sunXi EHCI driver
-
----
- drivers/usb/host/Kconfig | 9 +
- drivers/usb/host/Makefile | 1 +
- drivers/usb/host/ehci-sunxi.c | 446 ++++++++++++++++++++++++++++++++++++++++++
- 3 files changed, 456 insertions(+)
- create mode 100644 drivers/usb/host/ehci-sunxi.c
-
-diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
-index b3f20d7..ecc2745 100644
---- a/drivers/usb/host/Kconfig
-+++ b/drivers/usb/host/Kconfig
-@@ -274,6 +274,15 @@ config USB_OCTEON_EHCI
- USB 2.0 device support. All CN6XXX based chips with USB are
- supported.
-
-+config USB_SUNXI_EHCI
-+ tristate "Allwinner sunXi EHCI support"
-+ depends on ARCH_SUNXI
-+ default n
-+ help
-+ Enable support for the Allwinner sunXi on-chip EHCI
-+ controller. It is needed for high-speed (480Mbit/sec)
-+ USB 2.0 device support.
-+
- endif # USB_EHCI_HCD
-
- config USB_OXU210HP_HCD
-diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
-index 50b0041..d2e2c8c 100644
---- a/drivers/usb/host/Makefile
-+++ b/drivers/usb/host/Makefile
-@@ -38,6 +38,7 @@ obj-$(CONFIG_USB_EHCI_S5P) += ehci-s5p.o
- obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o
- obj-$(CONFIG_USB_EHCI_MSM) += ehci-msm.o
- obj-$(CONFIG_USB_EHCI_TEGRA) += ehci-tegra.o
-+obj-$(CONFIG_USB_SUNXI_EHCI) += ehci-sunxi.o
-
- obj-$(CONFIG_USB_OXU210HP_HCD) += oxu210hp-hcd.o
- obj-$(CONFIG_USB_ISP116X_HCD) += isp116x-hcd.o
-diff --git a/drivers/usb/host/ehci-sunxi.c b/drivers/usb/host/ehci-sunxi.c
-new file mode 100644
-index 0000000..e7e15cc
---- /dev/null
-+++ b/drivers/usb/host/ehci-sunxi.c
-@@ -0,0 +1,446 @@
-+/*
-+ * Copyright (C) 2013 Roman Byshko
-+ *
-+ * Roman Byshko <rbyshko@gmail.com>
-+ *
-+ * Based on code from
-+ * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
-+ *
-+ * This file is licensed under the terms of the GNU General Public
-+ * License version 2. This program is licensed "as is" without any
-+ * warranty of any kind, whether express or implied.
-+ */
-+
-+#include <linux/bitops.h>
-+#include <linux/clk.h>
-+#include <linux/dma-mapping.h>
-+#include <linux/io.h>
-+#include <linux/irq.h>
-+#include <linux/module.h>
-+#include <linux/of.h>
-+#include <linux/platform_device.h>
-+#include <linux/regulator/consumer.h>
-+#include <linux/reset.h>
-+#include <linux/usb.h>
-+#include <linux/usb/hcd.h>
-+
-+#include "ehci.h"
-+
-+#define DRV_DESC "Allwinner sunXi EHCI driver"
-+#define DRV_NAME "sunxi-ehci"
-+
-+#define SUNXI_USB_PASSBY_EN 1
-+
-+#define SUNXI_EHCI_AHB_ICHR8_EN BIT(10)
-+#define SUNXI_EHCI_AHB_INCR4_BURST_EN BIT(9)
-+#define SUNXI_EHCI_AHB_INCRX_ALIGN_EN BIT(8)
-+#define SUNXI_EHCI_ULPI_BYPASS_EN BIT(0)
-+
-+struct sunxi_ehci_hcd {
-+ struct clk *phy_clk;
-+ struct clk *ahb_ehci_clk;
-+ struct reset_control *reset;
-+ struct regulator *vbus_reg;
-+ void __iomem *csr;
-+ void __iomem *pmuirq;
-+ int irq;
-+ int id;
-+};
-+
-+
-+static void usb_phy_write(struct sunxi_ehci_hcd *sunxi_ehci,u32 addr, u32 data, u32 len)
-+{
-+ u32 j = 0;
-+ u32 temp = 0;
-+ u32 usbc_bit = 0;
-+ void __iomem *dest = sunxi_ehci->csr;
-+
-+ usbc_bit = BIT(sunxi_ehci->id << 1);
-+
-+ for (j = 0; j < len; j++) {
-+ temp = readl(dest);
-+
-+ /* clear the address portion */
-+ temp &= ~(0xff << 8);
-+
-+ /* set the address */
-+ temp |= ((addr + j) << 8);
-+ writel(temp, dest);
-+
-+ /* set the data bit and clear usbc bit*/
-+ temp = readb(dest);
-+ if (data & 0x1)
-+ temp |= BIT(7);
-+ else
-+ temp &= ~BIT(7);
-+ temp &= ~usbc_bit;
-+ writeb(temp, dest);
-+
-+ /* flip usbc_bit */
-+ __set_bit(usbc_bit, dest);
-+ __clear_bit(usbc_bit, dest);
-+
-+ data >>= 1;
-+ }
-+}
-+
-+/* FIXME: should this function be protected by a lock?
-+ * ehci1 and ehci0 could call it concurrently with same csr.
-+ */
-+static void sunxi_usb_phy_init(struct sunxi_ehci_hcd *sunxi_ehci)
-+{
-+ /* The following comments are machine
-+ * translated from Chinese, you have been warned!
-+ */
-+
-+ /* adjust PHY's magnitude and rate */
-+ usb_phy_write(sunxi_ehci, 0x20, 0x14, 5);
-+
-+ /* threshold adjustment disconnect */
-+ usb_phy_write(sunxi_ehci, 0x2a, 3, 2);
-+
-+ return;
-+}
-+
-+static void sunxi_usb_passby(struct sunxi_ehci_hcd *sunxi_ehci, int enable)
-+{
-+ unsigned long reg_value = 0;
-+ unsigned long bits = 0;
-+ static DEFINE_SPINLOCK(lock);
-+ unsigned long flags = 0;
-+ void __iomem *addr = sunxi_ehci->pmuirq;
-+
-+ bits = SUNXI_EHCI_AHB_ICHR8_EN |
-+ SUNXI_EHCI_AHB_INCR4_BURST_EN |
-+ SUNXI_EHCI_AHB_INCRX_ALIGN_EN |
-+ SUNXI_EHCI_ULPI_BYPASS_EN;
-+
-+ spin_lock_irqsave(&lock, flags);
-+
-+ reg_value = readl(addr);
-+
-+ if (enable)
-+ reg_value |= bits;
-+ else
-+ reg_value &= ~bits;
-+
-+ writel(reg_value, addr);
-+
-+ spin_unlock_irqrestore(&lock, flags);
-+
-+ return;
-+}
-+
-+static void sunxi_ehci_disable(struct sunxi_ehci_hcd *sunxi_ehci)
-+{
-+ regulator_disable(sunxi_ehci->vbus_reg);
-+
-+ sunxi_usb_passby(sunxi_ehci, !SUNXI_USB_PASSBY_EN);
-+
-+ clk_disable_unprepare(sunxi_ehci->ahb_ehci_clk);
-+ clk_disable_unprepare(sunxi_ehci->phy_clk);
-+
-+ reset_control_assert(sunxi_ehci->reset);
-+}
-+
-+static int sunxi_ehci_enable(struct sunxi_ehci_hcd *sunxi_ehci)
-+{
-+ int ret;
-+
-+ ret = clk_prepare_enable(sunxi_ehci->phy_clk);
-+ if (ret)
-+ return ret;
-+
-+ ret = reset_control_deassert(sunxi_ehci->reset);
-+ if (ret)
-+ goto fail1;
-+
-+ ret = clk_prepare_enable(sunxi_ehci->ahb_ehci_clk);
-+ if (ret)
-+ goto fail2;
-+
-+ sunxi_usb_phy_init(sunxi_ehci);
-+
-+ sunxi_usb_passby(sunxi_ehci, SUNXI_USB_PASSBY_EN);
-+
-+ ret = regulator_enable(sunxi_ehci->vbus_reg);
-+ if (ret)
-+ goto fail3;
-+
-+ return 0;
-+
-+fail3:
-+ clk_disable_unprepare(sunxi_ehci->ahb_ehci_clk);
-+fail2:
-+ reset_control_assert(sunxi_ehci->reset);
-+fail1:
-+ clk_disable_unprepare(sunxi_ehci->phy_clk);
-+
-+ return ret;
-+}
-+
-+#ifdef CONFIG_PM
-+static int sunxi_ehci_suspend(struct device *dev)
-+{
-+ struct sunxi_ehci_hcd *sunxi_ehci = NULL;
-+ struct usb_hcd *hcd = dev_get_drvdata(dev);
-+ int ret;
-+
-+ bool do_wakeup = device_may_wakeup(dev);
-+
-+ ret = ehci_suspend(hcd, do_wakeup);
-+
-+ sunxi_ehci = (struct sunxi_ehci_hcd *)hcd_to_ehci(hcd)->priv;
-+
-+ sunxi_ehci_disable(sunxi_ehci);
-+
-+ return ret;
-+}
-+
-+static int sunxi_ehci_resume(struct device *dev)
-+{
-+ struct sunxi_ehci_hcd *sunxi_ehci = NULL;
-+ struct usb_hcd *hcd = dev_get_drvdata(dev);
-+ int ret;
-+
-+ sunxi_ehci = (struct sunxi_ehci_hcd *)hcd_to_ehci(hcd)->priv;
-+
-+ ret = sunxi_ehci_enable(sunxi_ehci);
-+ if (ret)
-+ return ret;
-+
-+ return ehci_resume(hcd, false);
-+}
-+
-+
-+static const struct dev_pm_ops sunxi_ehci_pmops = {
-+ .suspend = sunxi_ehci_suspend,
-+ .resume = sunxi_ehci_resume,
-+};
-+
-+#define SUNXI_EHCI_PMOPS (&sunxi_ehci_pmops)
-+#else /* !CONFIG_PM */
-+#define SUNXI_EHCI_PMOPS NULL
-+#endif /* CONFIG_PM */
-+
-+static const struct ehci_driver_overrides sunxi_overrides __initconst = {
-+ .reset = NULL,
-+ .extra_priv_size = sizeof(struct sunxi_ehci_hcd),
-+};
-+
-+/* FIXME: Should there be two instances of hc_driver,
-+ * or one is enough to handle two EHCI controllers? */
-+static struct hc_driver __read_mostly sunxi_ehci_hc_driver;
-+
-+static int sunxi_ehci_init(struct platform_device *pdev, struct usb_hcd *hcd,
-+ struct sunxi_ehci_hcd *sunxi_ehci)
-+{
-+ void __iomem *ehci_regs = NULL;
-+ struct resource *res = NULL;
-+
-+ sunxi_ehci->vbus_reg = devm_regulator_get(&pdev->dev, "vbus");
-+ if (IS_ERR(sunxi_ehci->vbus_reg)) {
-+ if (PTR_ERR(sunxi_ehci->vbus_reg) == -EPROBE_DEFER)
-+ return -EPROBE_DEFER;
-+
-+ dev_info(&pdev->dev, "no USB VBUS power supply found\n");
-+ }
-+
-+ sunxi_ehci->id = of_alias_get_id(pdev->dev.of_node, "ehci");
-+ if (sunxi_ehci->id < 0)
-+ return sunxi_ehci->id;
-+
-+ /* FIXME: should res be freed on some failure? */
-+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+ if (!res) {
-+ dev_err(&pdev->dev, "failed to get I/O memory\n");
-+ return -ENXIO;
-+ }
-+ ehci_regs = devm_ioremap_resource(&pdev->dev, res);
-+ if (IS_ERR(ehci_regs))
-+ return PTR_ERR(ehci_regs);
-+
-+ hcd->rsrc_start = res->start;
-+ hcd->rsrc_len = resource_size(res);
-+ hcd->regs = ehci_regs;
-+ hcd_to_ehci(hcd)->caps = ehci_regs;
-+
-+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-+ if (!res) {
-+ dev_err(&pdev->dev, "failed to get I/O memory\n");
-+ return -ENXIO;
-+ }
-+ sunxi_ehci->pmuirq = devm_ioremap_resource(&pdev->dev, res);
-+ if (IS_ERR(sunxi_ehci->pmuirq))
-+ return PTR_ERR(sunxi_ehci->pmuirq);
-+
-+ res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
-+ if (!res) {
-+ dev_err(&pdev->dev, "failed to get I/O memory\n");
-+ return -ENXIO;
-+ }
-+
-+ /* FIXME: this one byte needs to be shared between both EHCIs,
-+ * that is why ioremap instead of devm_ioremap_resource,
-+ * memory is not unmaped back for now.
-+ */
-+ sunxi_ehci->csr = ioremap(res->start, resource_size(res));
-+ if (IS_ERR(sunxi_ehci->csr)) {
-+ dev_err(&pdev->dev, "failed to remap memory\n");
-+ return PTR_ERR(sunxi_ehci->csr);
-+ }
-+
-+ sunxi_ehci->irq = platform_get_irq(pdev, 0);
-+ if (!sunxi_ehci->irq) {
-+ dev_err(&pdev->dev, "failed to get IRQ\n");
-+ return -ENODEV;
-+ }
-+
-+ sunxi_ehci->phy_clk = devm_clk_get(&pdev->dev, "usb_phy");
-+ if (IS_ERR(sunxi_ehci->phy_clk)) {
-+ dev_err(&pdev->dev, "failed to get usb_phy clock\n");
-+ return PTR_ERR(sunxi_ehci->phy_clk);
-+ }
-+ sunxi_ehci->ahb_ehci_clk = devm_clk_get(&pdev->dev, "ahb_ehci");
-+ if (IS_ERR(sunxi_ehci->ahb_ehci_clk)) {
-+ dev_err(&pdev->dev, "failed to get ahb_ehci clock\n");
-+ return PTR_ERR(sunxi_ehci->ahb_ehci_clk);
-+ }
-+
-+ sunxi_ehci->reset = reset_control_get(&pdev->dev, "ehci_reset");
-+ if (IS_ERR(sunxi_ehci->reset))
-+ {
-+ dev_err(&pdev->dev, "failed to get ehci_reset reset line\n");
-+ return PTR_ERR(sunxi_ehci->reset);
-+ }
-+
-+ return 0;
-+}
-+
-+static int sunxi_ehci_probe(struct platform_device *pdev)
-+{
-+ struct sunxi_ehci_hcd *sunxi_ehci = NULL;
-+ struct usb_hcd *hcd = NULL;
-+ int ret;
-+
-+ if (pdev->num_resources != 4) {
-+ dev_err(&pdev->dev, "invalid number of resources: %i\n",
-+ pdev->num_resources);
-+ return -ENODEV;
-+ }
-+
-+ if (pdev->resource[0].flags != IORESOURCE_MEM
-+ || pdev->resource[1].flags != IORESOURCE_MEM
-+ || pdev->resource[2].flags != IORESOURCE_MEM
-+ || pdev->resource[3].flags != IORESOURCE_IRQ) {
-+ dev_err(&pdev->dev, "invalid resource type\n");
-+ return -ENODEV;
-+ }
-+
-+ if (!pdev->dev.dma_mask)
-+ pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-+ if (!pdev->dev.coherent_dma_mask)
-+ pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
-+
-+ hcd = usb_create_hcd(&sunxi_ehci_hc_driver, &pdev->dev,
-+ dev_name(&pdev->dev));
-+ if (!hcd) {
-+ dev_err(&pdev->dev, "unable to create HCD\n");
-+ return -ENOMEM;
-+ }
-+
-+ platform_set_drvdata(pdev, hcd);
-+
-+ sunxi_ehci = (struct sunxi_ehci_hcd *)hcd_to_ehci(hcd)->priv;
-+ ret = sunxi_ehci_init(pdev, hcd, sunxi_ehci);
-+ if (ret)
-+ goto fail1;
-+
-+ ret = sunxi_ehci_enable(sunxi_ehci);
-+ if (ret)
-+ goto fail1;
-+
-+ ret = usb_add_hcd(hcd, sunxi_ehci->irq, IRQF_SHARED | IRQF_DISABLED);
-+ if (ret) {
-+ dev_err(&pdev->dev, "failed to add USB HCD\n");
-+ goto fail2;
-+ }
-+
-+ return 0;
-+
-+fail2:
-+ sunxi_ehci_disable(sunxi_ehci);
-+
-+fail1:
-+ usb_put_hcd(hcd);
-+ return ret;
-+}
-+
-+static int sunxi_ehci_remove(struct platform_device *pdev)
-+{
-+ struct usb_hcd *hcd = platform_get_drvdata(pdev);
-+ struct sunxi_ehci_hcd *sunxi_ehci = NULL;
-+
-+ sunxi_ehci = (struct sunxi_ehci_hcd *)hcd_to_ehci(hcd)->priv;
-+
-+ usb_remove_hcd(hcd);
-+
-+ sunxi_ehci_disable(sunxi_ehci);
-+
-+ usb_put_hcd(hcd);
-+
-+ return 0;
-+}
-+
-+static void sunxi_ehci_shutdown(struct platform_device *pdev)
-+{
-+ struct usb_hcd *hcd = platform_get_drvdata(pdev);
-+ struct sunxi_ehci_hcd *sunxi_ehci = NULL;
-+
-+ sunxi_ehci = (struct sunxi_ehci_hcd *)hcd_to_ehci(hcd)->priv;
-+
-+ usb_hcd_platform_shutdown(pdev);
-+
-+ sunxi_ehci_disable(sunxi_ehci);
-+}
-+
-+static const struct of_device_id ehci_of_match[] = {
-+ {.compatible = "allwinner,sunxi-ehci"},
-+ {},
-+};
-+
-+static struct platform_driver ehci_sunxi_driver = {
-+ .driver = {
-+ .of_match_table = ehci_of_match,
-+ .name = DRV_NAME,
-+ .pm = SUNXI_EHCI_PMOPS,
-+ },
-+ .probe = sunxi_ehci_probe,
-+ .remove = sunxi_ehci_remove,
-+ .shutdown = sunxi_ehci_shutdown,
-+};
-+
-+static int __init sunxi_ehci_init_module(void)
-+{
-+ if (usb_disabled())
-+ return -ENODEV;
-+
-+ pr_info(DRV_NAME ": " DRV_DESC "\n");
-+
-+ ehci_init_driver(&sunxi_ehci_hc_driver, &sunxi_overrides);
-+
-+ return platform_driver_register(&ehci_sunxi_driver);
-+}
-+module_init(sunxi_ehci_init_module);
-+
-+static void __exit sunxi_ehci_exit_module(void)
-+{
-+ platform_driver_unregister(&ehci_sunxi_driver);
-+}
-+module_exit(sunxi_ehci_exit_module);
-+
-+MODULE_DESCRIPTION(DRIVER_DESC);
-+MODULE_LICENSE("GPL");
-+MODULE_ALIAS("platform:" DRV_NAME);
-+MODULE_DEVICE_TABLE(of, ehci_of_match);
-+MODULE_AUTHOR("Roman Byshko <rbyshko@gmail.com>");
---
-1.8.4
-
generated by cgit v1.1 at 2024-12-15 06:52:58 +0000