-From b61e70ad9080a6dbd3731917ec21dbcbb9d382a2 Mon Sep 17 00:00:00 2001
+From 0f91c21de577d2d9f1fd164ca686d9a4ff0e2c8b Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 26 Nov 2011 21:35:17 +0100
-Subject: [PATCH 20/21] USB: Add driver for the ssb bus
+Subject: [PATCH 20/26] USB: Add driver for the ssb bus
This adds a USB driver using the generic platform device driver for the
USB controller found on the Broadcom ssb bus. The ssb bus just
---
drivers/usb/host/Kconfig | 12 ++
drivers/usb/host/Makefile | 1 +
- drivers/usb/host/ssb-hcd.c | 320 ++++++++++++++++++++++++++++++++++++++++++++
- 3 files changed, 333 insertions(+), 0 deletions(-)
+ drivers/usb/host/ssb-hcd.c | 272 ++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 285 insertions(+), 0 deletions(-)
create mode 100644 drivers/usb/host/ssb-hcd.c
--- a/drivers/usb/host/Kconfig
+obj-$(CONFIG_USB_HCD_SSB) += ssb-hcd.o
--- /dev/null
+++ b/drivers/usb/host/ssb-hcd.c
-@@ -0,0 +1,268 @@
+@@ -0,0 +1,272 @@
+/*
+ * Sonics Silicon Backplane
+ * Broadcom USB-core driver (SSB bus glue)
+ u32 enable_flags;
+};
+
-+/* based on arch/mips/brcm-boards/bcm947xx/pcibios.c */
-+static u32 ssb_hcd_init_chip(struct ssb_device *dev)
++static void __devinit ssb_hcd_5354wa(struct ssb_device *dev)
+{
-+ u32 tmp, flags = 0;
++#ifdef CONFIG_SSB_DRIVER_MIPS
++ /* Work around for 5354 failures */
++ if (dev->id.revision == 2 && dev->bus->chip_id == 0x5354) {
++ /* Change syn01 reg */
++ ssb_write32(dev, 0x894, 0x00fe00fe);
++
++ /* Change syn03 reg */
++ ssb_write32(dev, 0x89c, ssb_read32(dev, 0x89c) | 0x1);
++ }
++#endif
++}
+
-+ if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV) {
-+ /* Put the device into host-mode. */
-+ flags |= SSB_HCD_TMSLOW_HOSTMODE;
-+ ssb_device_enable(dev, flags);
-+ } else if (dev->id.coreid == SSB_DEV_USB20_HOST) {
++static void __devinit ssb_hcd_usb20wa(struct ssb_device *dev)
++{
++ if (dev->id.coreid == SSB_DEV_USB20_HOST) {
+ /*
+ * USB 2.0 special considerations:
+ *
+ * Control Register must be programmed to bring the USB core
+ * and various phy components out of reset.
+ */
-+ ssb_device_enable(dev, 0);
+ ssb_write32(dev, 0x200, 0x7ff);
+
+ /* Change Flush control reg */
-+ tmp = ssb_read32(dev, 0x400);
-+ tmp &= ~8;
-+ ssb_write32(dev, 0x400, tmp);
-+ tmp = ssb_read32(dev, 0x400);
++ ssb_write32(dev, 0x400, ssb_read32(dev, 0x400) & ~8);
++ ssb_read32(dev, 0x400);
+
+ /* Change Shim control reg */
-+ tmp = ssb_read32(dev, 0x304);
-+ tmp &= ~0x100;
-+ ssb_write32(dev, 0x304, tmp);
-+ tmp = ssb_read32(dev, 0x304);
++ ssb_write32(dev, 0x304, ssb_read32(dev, 0x304) & ~0x100);
++ ssb_read32(dev, 0x304);
+
+ udelay(1);
+
-+ /* Work around for 5354 failures */
-+ if (dev->id.revision == 2 && dev->bus->chip_id == 0x5354) {
-+ /* Change syn01 reg */
-+ tmp = 0x00fe00fe;
-+ ssb_write32(dev, 0x894, tmp);
++ ssb_hcd_5354wa(dev);
++ }
++}
++
++/* based on arch/mips/brcm-boards/bcm947xx/pcibios.c */
++static u32 __devinit ssb_hcd_init_chip(struct ssb_device *dev)
++{
++ u32 flags = 0;
+
-+ /* Change syn03 reg */
-+ tmp = ssb_read32(dev, 0x89c);
-+ tmp |= 0x1;
-+ ssb_write32(dev, 0x89c, tmp);
-+ }
-+ } else
-+ ssb_device_enable(dev, 0);
++ if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV)
++ /* Put the device into host-mode. */
++ flags |= SSB_HCD_TMSLOW_HOSTMODE;
++
++ ssb_device_enable(dev, flags);
++
++ ssb_hcd_usb20wa(dev);
+
+ return flags;
+}
+
-+static struct platform_device *ssb_hcd_create_pdev(struct ssb_device *dev,
-+ char *name, u32 addr,
-+ u32 len)
++static struct platform_device * __devinit
++ssb_hcd_create_pdev(struct ssb_device *dev, char *name, u32 addr, u32 len)
+{
+ struct platform_device *hci_dev;
-+ struct resource *hci_res;
++ struct resource hci_res[2];
+ int ret = -ENOMEM;
+
-+ hci_res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
-+ if (!hci_res)
-+ return ERR_PTR(-ENOMEM);
++ memset(hci_res, 0, sizeof(hci_res));
+
+ hci_res[0].start = addr;
+ hci_res[0].end = hci_res[0].start + len - 1;
+ ret = platform_device_add(hci_dev);
+ if (ret) {
+err_alloc:
-+ kfree(hci_res);
+ platform_device_put(hci_dev);
+ return ERR_PTR(ret);
+ }
+ return hci_dev;
+}
+
-+static int ssb_hcd_probe(struct ssb_device *dev, const struct ssb_device_id *id)
++static int __devinit ssb_hcd_probe(struct ssb_device *dev,
++ const struct ssb_device_id *id)
+{
+ int err, tmp;
+ int start, len;
+ return err;
+}
+
-+static void ssb_hcd_remove(struct ssb_device *dev)
++static void __devexit ssb_hcd_remove(struct ssb_device *dev)
+{
+ struct ssb_hcd_device *usb_dev;
+ struct platform_device *ohci_dev;
+ ssb_device_disable(dev, 0);
+}
+
-+static void ssb_hcd_shutdown(struct ssb_device *dev)
++static void __devexit ssb_hcd_shutdown(struct ssb_device *dev)
+{
+ ssb_device_disable(dev, 0);
+}
+
+static int ssb_hcd_resume(struct ssb_device *dev)
+{
++ struct ssb_hcd_device *usb_dev = ssb_get_drvdata(dev);
++
+ ssb_device_enable(dev, usb_dev->enable_flags);
+
+ return 0;
+#define ssb_hcd_resume NULL
+#endif /* CONFIG_PM */
+
-+static const struct ssb_device_id ssb_hcd_table[] = {
++static const struct ssb_device_id ssb_hcd_table[] __devinitconst = {
+ SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOSTDEV, SSB_ANY_REV),
+ SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOST, SSB_ANY_REV),
+ SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB20_HOST, SSB_ANY_REV),
+ .name = KBUILD_MODNAME,
+ .id_table = ssb_hcd_table,
+ .probe = ssb_hcd_probe,
-+ .remove = ssb_hcd_remove,
++ .remove = __devexit_p(ssb_hcd_remove),
+ .shutdown = ssb_hcd_shutdown,
+ .suspend = ssb_hcd_suspend,
+ .resume = ssb_hcd_resume,
projects / openwrt.git / blobdiff