Subject: [PATCH] bcma-hcd: add BCM5301x platform support

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---
--- a/drivers/usb/host/bcma-hcd.c
+++ b/drivers/usb/host/bcma-hcd.c
@@ -88,7 +88,7 @@ static void bcma_hcd_4716wa(struct bcma_
 }
 
 /* based on arch/mips/brcm-boards/bcm947xx/pcibios.c */
-static void bcma_hcd_init_chip(struct bcma_device *dev)
+static void bcma_hcd_init_chip_mips(struct bcma_device *dev)
 {
 	u32 tmp;
 
@@ -159,6 +159,52 @@ static void bcma_hcd_init_chip(struct bc
 	}
 }
 
+static void bcma_hcd_init_chip_arm(struct bcma_device *dev)
+{
+	struct bcma_device *arm_core;
+	void __iomem *dmu;
+	u32 val;
+
+	bcma_core_disable(dev, 0);
+	bcma_core_enable(dev, 0);
+
+	msleep(1);
+
+	/* Set packet buffer OUT threshold */
+	val = bcma_read32(dev, 0x94);
+	val &= 0xffff;
+	val |= 0x80 << 16;
+	bcma_write32(dev, 0x94, val);
+
+	/* Enable break memory transfer */
+	val = bcma_read32(dev, 0x9c);
+	val |= 1;
+	bcma_write32(dev, 0x9c, val);
+
+	if (dev->bus->chipinfo.pkg != BCMA_PKG_ID_BCM4707 &&
+	    dev->bus->chipinfo.pkg != BCMA_PKG_ID_BCM4708)
+		return;
+
+	arm_core = bcma_find_core(dev->bus, BCMA_CORE_ARMCA9);
+	if (!arm_core)
+		return;
+
+	dmu = ioremap_nocache(arm_core->addr_s[0], 0x1000);
+	if (!dmu)
+		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 const struct usb_ehci_pdata ehci_pdata = {
 };
 
@@ -222,7 +268,8 @@ static int bcma_hcd_probe(struct bcma_de
 	chipinfo = &dev->bus->chipinfo;
 	/* USBcores are only connected on embedded devices. */
 	chipid_top = (chipinfo->id & 0xFF00);
-	if (chipid_top != 0x4700 && chipid_top != 0x5300)
+	if (chipid_top != 0x4700 && chipid_top != 0x5300 &&
+	    chipinfo->id != BCMA_CHIP_ID_BCM4707)
 		return -ENODEV;
 
 	/* TODO: Probably need checks here; is the core connected? */
@@ -234,7 +281,12 @@ static int bcma_hcd_probe(struct bcma_de
 	if (!usb_dev)
 		return -ENOMEM;
 
-	bcma_hcd_init_chip(dev);
+	if (IS_BUILTIN(CONFIG_ARCH_BCM_5301X) &&
+	    chipinfo->id == BCMA_CHIP_ID_BCM4707) {
+		bcma_hcd_init_chip_arm(dev);
+	} else if(IS_BUILTIN(CONFIG_BCM47XX)) {
+		bcma_hcd_init_chip_mips(dev);
+	}
 
 	/* In AI chips EHCI is addrspace 0, OHCI is 1 */
 	ohci_addr = dev->addr_s[0];
@@ -306,6 +358,7 @@ static int bcma_hcd_resume(struct bcma_d
 
 static const struct bcma_device_id bcma_hcd_table[] = {
 	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_USB20_HOST, BCMA_ANY_REV, BCMA_ANY_CLASS),
+	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_NS_USB20, BCMA_ANY_REV, BCMA_ANY_CLASS),
 	BCMA_CORETABLE_END
 };
 MODULE_DEVICE_TABLE(bcma, bcma_hcd_table);