USB: bcma: drop Northstar PHY 2.0 initialization code

This driver should initialize controller only, PHY initialization should
be handled by separated PHY driver. We already have phy-bcm-ns-usb2 in
place so let it makes its duty.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c
index e0761d9..5f425c8 100644 (file)
--- a/drivers/usb/host/bcma-hcd.c
+++ b/drivers/usb/host/bcma-hcd.c
@@ -239,44 +239,10 @@ static int bcma_hcd_usb20_old_arm_init(struct bcma_hcd_device *usb_dev)
        return 0;
 }
 
-static void bcma_hcd_init_chip_arm_phy(struct bcma_device *dev)
-{
-       struct bcma_device *arm_core;
-       void __iomem *dmu;
-
-       arm_core = bcma_find_core(dev->bus, BCMA_CORE_ARMCA9);
-       if (!arm_core) {
-               dev_err(&dev->dev, "can not find ARM Cortex A9 ihost core\n");
-               return;
-       }
-
-       dmu = ioremap_nocache(arm_core->addr_s[0], 0x1000);
-       if (!dmu) {
-               dev_err(&dev->dev, "can not map ARM Cortex A9 ihost core\n");
-               return;
-       }
-
-       /* Unlock DMU PLL settings */
-       iowrite32(0x0000ea68, dmu + 0x180);
-
-       /* Write USB 2.0 PLL control setting */
-       iowrite32(0x00dd10c3, dmu + 0x164);
-
-       /* Lock DMU PLL settings */
-       iowrite32(0x00000000, dmu + 0x180);
-
-       iounmap(dmu);
-}
-
-static void bcma_hcd_init_chip_arm_hc(struct bcma_device *dev)
+static void bcma_hcd_usb20_ns_init_hc(struct bcma_device *dev)
 {
        u32 val;
 
-       /*
-        * Delay after PHY initialized to ensure HC is ready to be configured
-        */
-       usleep_range(1000, 2000);
-
        /* Set packet buffer OUT threshold */
        val = bcma_read32(dev, 0x94);
        val &= 0xffff;
@@ -287,20 +253,33 @@ static void bcma_hcd_init_chip_arm_hc(struct bcma_device *dev)
        val = bcma_read32(dev, 0x9c);
        val |= 1;
        bcma_write32(dev, 0x9c, val);
+
+       /*
+        * Broadcom initializes PHY and then waits to ensure HC is ready to be
+        * configured. In our case the order is reversed. We just initialized
+        * controller and we let HCD initialize PHY, so let's wait (sleep) now.
+        */
+       usleep_range(1000, 2000);
 }
 
-static void bcma_hcd_init_chip_arm(struct bcma_device *dev)
+/**
+ * bcma_hcd_usb20_ns_init - Initialize Northstar USB 2.0 controller
+ */
+static int bcma_hcd_usb20_ns_init(struct bcma_hcd_device *bcma_hcd)
 {
-       bcma_core_enable(dev, 0);
+       struct bcma_device *core = bcma_hcd->core;
+       struct bcma_chipinfo *ci = &core->bus->chipinfo;
+       struct device *dev = &core->dev;
 
-       if (dev->bus->chipinfo.id == BCMA_CHIP_ID_BCM4707 ||
-           dev->bus->chipinfo.id == BCMA_CHIP_ID_BCM53018) {
-               if (dev->bus->chipinfo.pkg == BCMA_PKG_ID_BCM4707 ||
-                   dev->bus->chipinfo.pkg == BCMA_PKG_ID_BCM4708)
-                       bcma_hcd_init_chip_arm_phy(dev);
+       bcma_core_enable(core, 0);
 
-               bcma_hcd_init_chip_arm_hc(dev);
-       }
+       if (ci->id == BCMA_CHIP_ID_BCM4707 ||
+           ci->id == BCMA_CHIP_ID_BCM53018)
+               bcma_hcd_usb20_ns_init_hc(core);
+
+       of_platform_default_populate(dev->of_node, NULL, dev);
+
+       return 0;
 }
 
 static void bcma_hci_platform_power_gpio(struct bcma_device *dev, bool val)
@@ -373,16 +352,7 @@ static int bcma_hcd_usb20_init(struct bcma_hcd_device *usb_dev)
        if (dma_set_mask_and_coherent(dev->dma_dev, DMA_BIT_MASK(32)))
                return -EOPNOTSUPP;
 
-       switch (dev->id.id) {
-       case BCMA_CORE_NS_USB20:
-               bcma_hcd_init_chip_arm(dev);
-               break;
-       case BCMA_CORE_USB20_HOST:
-               bcma_hcd_init_chip_mips(dev);
-               break;
-       default:
-               return -ENODEV;
-       }
+       bcma_hcd_init_chip_mips(dev);
 
        /* In AI chips EHCI is addrspace 0, OHCI is 1 */
        ohci_addr = dev->addr_s[0];
@@ -451,7 +421,7 @@ static int bcma_hcd_probe(struct bcma_device *core)
                        err = -ENOTSUPP;
                break;
        case BCMA_CORE_NS_USB20:
-               err = bcma_hcd_usb20_init(usb_dev);
+               err = bcma_hcd_usb20_ns_init(usb_dev);
                break;
        case BCMA_CORE_NS_USB30:
                err = bcma_hcd_usb30_init(usb_dev);