bcm53xx: add USB 2.0 support

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 45450

2 files changed, 184 insertions, 0 deletions

diff --git a/target/linux/bcm53xx/patches-3.18/190-bcma_hcd_add_bcm5301x_support.patch b/target/linux/bcm53xx/patches-3.18/190-bcma_hcd_add_bcm5301x_support.patch
new file mode 100644
index 0000000000..2e528b6a0b
--- /dev/null
+++ b/target/linux/bcm53xx/patches-3.18/190-bcma_hcd_add_bcm5301x_support.patch
@@ -0,0 +1,122 @@
+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? */
+@@ -234,18 +281,23 @@ static int bcma_hcd_probe(struct bcma_de
+ 	if (!usb_dev)
+ 		return -ENOMEM;
+ 
+-	bcma_hcd_init_chip(dev);
+-
+-	/* In AI chips EHCI is addrspace 0, OHCI is 1 */
+-	ohci_addr = dev->addr_s[0];
+-	if ((chipinfo->id == 0x5357 || chipinfo->id == 0x4749)
+-	    && chipinfo->rev == 0)
+-		ohci_addr = 0x18009000;
+-
+-	usb_dev->ohci_dev = bcma_hcd_create_pdev(dev, true, ohci_addr);
+-	if (IS_ERR(usb_dev->ohci_dev)) {
+-		err = PTR_ERR(usb_dev->ohci_dev);
+-		goto err_free_usb_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];
++		if ((chipinfo->id == 0x5357 || chipinfo->id == 0x4749)
++			&& chipinfo->rev == 0)
++			ohci_addr = 0x18009000;
++
++		usb_dev->ohci_dev = bcma_hcd_create_pdev(dev, true, ohci_addr);
++		if (IS_ERR(usb_dev->ohci_dev)) {
++			err = PTR_ERR(usb_dev->ohci_dev);
++			goto err_free_usb_dev;
++		}
+ 	}
+ 
+ 	usb_dev->ehci_dev = bcma_hcd_create_pdev(dev, false, dev->addr);
+@@ -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);
diff --git a/target/linux/bcm53xx/patches-3.18/191-bcma_hcd_add_gpio_power_control.patch b/target/linux/bcm53xx/patches-3.18/191-bcma_hcd_add_gpio_power_control.patch
new file mode 100644
index 0000000000..9c45556ec9
--- /dev/null
+++ b/target/linux/bcm53xx/patches-3.18/191-bcma_hcd_add_gpio_power_control.patch
@@ -0,0 +1,62 @@
+Subject: [PATCH] bcma-hcd: add support for controlling bus power through GPIO
+
+Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+---
+--- a/drivers/usb/host/bcma-hcd.c
++++ b/drivers/usb/host/bcma-hcd.c
+@@ -23,6 +23,8 @@
+ #include <linux/platform_device.h>
+ #include <linux/module.h>
+ #include <linux/slab.h>
++#include <linux/of.h>
++#include <linux/of_gpio.h>
+ #include <linux/usb/ehci_pdriver.h>
+ #include <linux/usb/ohci_pdriver.h>
+ 
+@@ -205,7 +207,38 @@ static void bcma_hcd_init_chip_arm(struc
+ 	iounmap(dmu);
+ }
+ 
++static void bcma_hci_platform_power_gpio(struct platform_device *dev, bool val)
++{
++	int gpio;
++
++	gpio = of_get_named_gpio(dev->dev.of_node, "vcc-gpio", 0);
++	if (!gpio_is_valid(gpio))
++		return;
++
++	if (val) {
++		gpio_request(gpio, "bcma-hcd-gpio");
++		gpio_set_value(gpio, 1);
++	} else {
++		gpio_set_value(gpio, 0);
++		gpio_free(gpio);
++	}
++}
++
++static int bcma_hci_platform_power_on(struct platform_device *dev)
++{
++	bcma_hci_platform_power_gpio(dev, true);
++	return 0;
++}
++
++static void bcma_hci_platform_power_off(struct platform_device *dev)
++{
++	bcma_hci_platform_power_gpio(dev, false);
++}
++
+ static const struct usb_ehci_pdata ehci_pdata = {
++    .power_on =		bcma_hci_platform_power_on,
++    .power_suspend =	bcma_hci_platform_power_off,
++    .power_off =	bcma_hci_platform_power_off,
+ };
+ 
+ static const struct usb_ohci_pdata ohci_pdata = {
+@@ -233,6 +266,7 @@ static struct platform_device *bcma_hcd_
+ 
+ 	hci_dev->dev.parent = &dev->dev;
+ 	hci_dev->dev.dma_mask = &hci_dev->dev.coherent_dma_mask;
++	hci_dev->dev.of_node = dev->dev.of_node;
+ 
+ 	ret = platform_device_add_resources(hci_dev, hci_res,
+ 					    ARRAY_SIZE(hci_res));