68 lines
2 KiB
Diff
68 lines
2 KiB
Diff
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From 3cc7e7b7872ebd0f200b5450f5471bc3700de141 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Fri, 8 Jul 2016 14:02:50 +0200
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Subject: [PATCH] USB: bcma: initialize Northstar USB 3.0 controller
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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It's a rather simple controller, we just need to make sure USB is
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powered (using GPIO pin) and reset bus core. Once this is done it's
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safe to register XHCI controller and let it init PHY and do its magic.
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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---
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drivers/usb/host/bcma-hcd.c | 19 +++++++++++++++++++
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1 file changed, 19 insertions(+)
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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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@@ -27,6 +27,7 @@
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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/of_platform.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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@@ -338,6 +339,18 @@ err_unregister_ohci_dev:
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return err;
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}
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+static int bcma_hcd_usb30_init(struct bcma_hcd_device *bcma_hcd)
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+{
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+ struct bcma_device *core = bcma_hcd->core;
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+ struct device *dev = &core->dev;
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+
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+ bcma_core_enable(core, 0);
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+
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+ of_platform_default_populate(dev->of_node, NULL, dev);
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+
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+ return 0;
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+}
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+
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static int bcma_hcd_probe(struct bcma_device *core)
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{
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int err;
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@@ -362,6 +375,11 @@ static int bcma_hcd_probe(struct bcma_de
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if (err)
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return err;
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break;
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+ case BCMA_CORE_NS_USB30:
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+ err = bcma_hcd_usb30_init(usb_dev);
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+ if (err)
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+ return err;
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+ break;
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default:
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return -ENODEV;
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}
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@@ -416,6 +434,7 @@ 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_CORE(BCMA_MANUF_BCM, BCMA_CORE_NS_USB30, BCMA_ANY_REV, BCMA_ANY_CLASS),
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{},
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};
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MODULE_DEVICE_TABLE(bcma, bcma_hcd_table);
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