bcm53xx: add USB 2.0 support
Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 45450v19.07.3_mercusys_ac12_duma
Felix Fietkau
9 years ago
parent
f1119373f2
commit
83e31eb7e7
@ -0,0 +1,122 @@
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Subject: [PATCH] bcma-hcd: add BCM5301x platform support
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
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---
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--- a/drivers/usb/host/bcma-hcd.c
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+++ b/drivers/usb/host/bcma-hcd.c
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@@ -88,7 +88,7 @@ static void bcma_hcd_4716wa(struct bcma_
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}
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/* based on arch/mips/brcm-boards/bcm947xx/pcibios.c */
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-static void bcma_hcd_init_chip(struct bcma_device *dev)
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+static void bcma_hcd_init_chip_mips(struct bcma_device *dev)
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{
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u32 tmp;
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@@ -159,6 +159,52 @@ static void bcma_hcd_init_chip(struct bc
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}
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}
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+static void bcma_hcd_init_chip_arm(struct bcma_device *dev)
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+{
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+ struct bcma_device *arm_core;
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+ void __iomem *dmu;
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+ u32 val;
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+
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+ bcma_core_disable(dev, 0);
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+ bcma_core_enable(dev, 0);
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+
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+ msleep(1);
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+
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+ /* Set packet buffer OUT threshold */
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+ val = bcma_read32(dev, 0x94);
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+ val &= 0xffff;
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+ val |= 0x80 << 16;
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+ bcma_write32(dev, 0x94, val);
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+
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+ /* Enable break memory transfer */
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+ val = bcma_read32(dev, 0x9c);
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+ val |= 1;
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+ bcma_write32(dev, 0x9c, val);
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+
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+ if (dev->bus->chipinfo.pkg != BCMA_PKG_ID_BCM4707 &&
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+ dev->bus->chipinfo.pkg != BCMA_PKG_ID_BCM4708)
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+ return;
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+
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+ arm_core = bcma_find_core(dev->bus, BCMA_CORE_ARMCA9);
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+ if (!arm_core)
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+ return;
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+
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+ dmu = ioremap_nocache(arm_core->addr_s[0], 0x1000);
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+ if (!dmu)
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+ return;
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+
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+ /* Unlock DMU PLL settings */
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+ iowrite32(0x0000ea68, dmu + 0x180);
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+
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+ /* Write USB 2.0 PLL control setting */
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+ iowrite32(0x00dd10c3, dmu + 0x164);
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+
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+ /* Lock DMU PLL settings */
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+ iowrite32(0x00000000, dmu + 0x180);
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+
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+ iounmap(dmu);
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+}
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+
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static const struct usb_ehci_pdata ehci_pdata = {
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};
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@@ -222,7 +268,8 @@ static int bcma_hcd_probe(struct bcma_de
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chipinfo = &dev->bus->chipinfo;
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/* USBcores are only connected on embedded devices. */
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chipid_top = (chipinfo->id & 0xFF00);
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- if (chipid_top != 0x4700 && chipid_top != 0x5300)
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+ if (chipid_top != 0x4700 && chipid_top != 0x5300 &&
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+ chipinfo->id != BCMA_CHIP_ID_BCM4707)
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return -ENODEV;
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/* TODO: Probably need checks here; is the core connected? */
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@@ -234,18 +281,23 @@ static int bcma_hcd_probe(struct bcma_de
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if (!usb_dev)
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return -ENOMEM;
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- bcma_hcd_init_chip(dev);
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-
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- /* In AI chips EHCI is addrspace 0, OHCI is 1 */
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- ohci_addr = dev->addr_s[0];
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- if ((chipinfo->id == 0x5357 || chipinfo->id == 0x4749)
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- && chipinfo->rev == 0)
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- ohci_addr = 0x18009000;
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-
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- usb_dev->ohci_dev = bcma_hcd_create_pdev(dev, true, ohci_addr);
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- if (IS_ERR(usb_dev->ohci_dev)) {
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- err = PTR_ERR(usb_dev->ohci_dev);
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- goto err_free_usb_dev;
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+ if (IS_BUILTIN(CONFIG_ARCH_BCM_5301X) &&
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+ chipinfo->id == BCMA_CHIP_ID_BCM4707) {
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+ bcma_hcd_init_chip_arm(dev);
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+ } else if(IS_BUILTIN(CONFIG_BCM47XX)) {
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+ bcma_hcd_init_chip_mips(dev);
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+
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+ /* In AI chips EHCI is addrspace 0, OHCI is 1 */
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+ ohci_addr = dev->addr_s[0];
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+ if ((chipinfo->id == 0x5357 || chipinfo->id == 0x4749)
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+ && chipinfo->rev == 0)
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+ ohci_addr = 0x18009000;
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+
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+ usb_dev->ohci_dev = bcma_hcd_create_pdev(dev, true, ohci_addr);
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+ if (IS_ERR(usb_dev->ohci_dev)) {
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+ err = PTR_ERR(usb_dev->ohci_dev);
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+ goto err_free_usb_dev;
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+ }
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}
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usb_dev->ehci_dev = bcma_hcd_create_pdev(dev, false, dev->addr);
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@@ -306,6 +358,7 @@ static int bcma_hcd_resume(struct bcma_d
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static const struct bcma_device_id bcma_hcd_table[] = {
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BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_USB20_HOST, BCMA_ANY_REV, BCMA_ANY_CLASS),
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+ BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_NS_USB20, BCMA_ANY_REV, BCMA_ANY_CLASS),
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BCMA_CORETABLE_END
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};
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MODULE_DEVICE_TABLE(bcma, bcma_hcd_table);
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@ -0,0 +1,62 @@
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Subject: [PATCH] bcma-hcd: add support for controlling bus power through GPIO
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
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---
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--- a/drivers/usb/host/bcma-hcd.c
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+++ b/drivers/usb/host/bcma-hcd.c
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@@ -23,6 +23,8 @@
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#include <linux/platform_device.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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+#include <linux/of.h>
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+#include <linux/of_gpio.h>
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#include <linux/usb/ehci_pdriver.h>
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#include <linux/usb/ohci_pdriver.h>
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@@ -205,7 +207,38 @@ static void bcma_hcd_init_chip_arm(struc
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iounmap(dmu);
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}
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+static void bcma_hci_platform_power_gpio(struct platform_device *dev, bool val)
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+{
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+ int gpio;
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+
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+ gpio = of_get_named_gpio(dev->dev.of_node, "vcc-gpio", 0);
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+ if (!gpio_is_valid(gpio))
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+ return;
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+
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+ if (val) {
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+ gpio_request(gpio, "bcma-hcd-gpio");
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+ gpio_set_value(gpio, 1);
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+ } else {
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+ gpio_set_value(gpio, 0);
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+ gpio_free(gpio);
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+ }
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+}
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+
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+static int bcma_hci_platform_power_on(struct platform_device *dev)
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+{
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+ bcma_hci_platform_power_gpio(dev, true);
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+ return 0;
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+}
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+
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+static void bcma_hci_platform_power_off(struct platform_device *dev)
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+{
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+ bcma_hci_platform_power_gpio(dev, false);
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+}
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+
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static const struct usb_ehci_pdata ehci_pdata = {
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+ .power_on = bcma_hci_platform_power_on,
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+ .power_suspend = bcma_hci_platform_power_off,
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+ .power_off = bcma_hci_platform_power_off,
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};
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static const struct usb_ohci_pdata ohci_pdata = {
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@@ -233,6 +266,7 @@ static struct platform_device *bcma_hcd_
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hci_dev->dev.parent = &dev->dev;
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hci_dev->dev.dma_mask = &hci_dev->dev.coherent_dma_mask;
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+ hci_dev->dev.of_node = dev->dev.of_node;
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ret = platform_device_add_resources(hci_dev, hci_res,
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ARRAY_SIZE(hci_res));
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