[][MT79xx add USBIF compliance toolkit]

[Description]
Add USBIF compliance toolkit for MT79xx
usb3hqa
RG_USB20_INTR_EN
RG_UsB20_VRT_VREF_SEL
RG_USB20_TERM_VREF_SEL
RG_USB20_HSTX_SRCTRL
RG_USB20_DISCTH
RG_CHGDT_EN

[Release-log]
N/A

Change-Id: I2f7e4bdf27c2197a198ce10af3a09c362adfc04a
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5351515
diff --git a/target/linux/mediatek/patches-5.4/9001-PATCH-1-2-xHCI-MT7986-USB-2.0-USBIF-compliance-toolkit.patch b/target/linux/mediatek/patches-5.4/9001-PATCH-1-2-xHCI-MT7986-USB-2.0-USBIF-compliance-toolkit.patch
new file mode 100644
index 0000000..738d9b2
--- /dev/null
+++ b/target/linux/mediatek/patches-5.4/9001-PATCH-1-2-xHCI-MT7986-USB-2.0-USBIF-compliance-toolkit.patch
@@ -0,0 +1,134 @@
+From b4048b5efd1ac39f85d86dedbf54a9b614d17d64 Mon Sep 17 00:00:00 2001
+From: Zhanyong Wang <zhanyong.wang@mediatek.com>
+Date: Thu, 27 May 2021 11:44:17 +0800
+Subject: [PATCH 1/2] xHCI: MT7986 USB 2.0 USBIF compliance toolkit
+
+MT7986 USB 2.0 USBIF compliance toolkit
+
+Signed-off-by: Zhanyong Wang <zhanyong.wang@mediatek.com>
+---
+ drivers/usb/host/Kconfig    | 9 +++++++++
+ drivers/usb/host/Makefile   | 8 ++++++++
+ drivers/usb/host/xhci-mtk.c | 5 ++++-
+ drivers/usb/host/xhci-mtk.h | 7 +++++++
+ drivers/usb/host/xhci.c     | 2 +-
+ drivers/usb/host/xhci.h     | 1 +
+ 6 files changed, 30 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
+index 79b2e79dddd0..12b1bf9aa043 100644
+--- a/drivers/usb/host/Kconfig
++++ b/drivers/usb/host/Kconfig
+@@ -69,6 +69,15 @@ config USB_XHCI_MTK
+ 	  found in MediaTek SoCs.
+ 	  If unsure, say N.
+ 
++config USB_XHCI_MTK_DEBUGFS
++	tristate "xHCI DEBUGFS support for Mediatek MT65xx"
++	depends on USB_XHCI_MTK && DEBUG_FS
++       default y
++	---help---
++	  Say 'Y' to enable the debugfs support for the xHCI host controller
++	  found in Mediatek MT65xx SoCs.
++	  If don't need, say N.
++
+ config USB_XHCI_MVEBU
+ 	tristate "xHCI support for Marvell Armada 375/38x/37xx"
+ 	select USB_XHCI_PLATFORM
+diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
+index b191361257cc..704237831a58 100644
+--- a/drivers/usb/host/Makefile
++++ b/drivers/usb/host/Makefile
+@@ -21,6 +21,14 @@ endif
+ 
+ ifneq ($(CONFIG_USB_XHCI_MTK), )
+ 	xhci-hcd-y += xhci-mtk-sch.o
++	xhci-hcd-$(CONFIG_USB_XHCI_MTK_DEBUGFS) += xhci-mtk-test.o
++	xhci-hcd-$(CONFIG_USB_XHCI_MTK_DEBUGFS) += xhci-mtk-unusual.o
++	xhci-hcd-$(CONFIG_USB_XHCI_MTK_DEBUGFS) += xhci-mtk-intr-en.o
++	xhci-hcd-$(CONFIG_USB_XHCI_MTK_DEBUGFS) += xhci-mtk-vrt-vref.o
++	xhci-hcd-$(CONFIG_USB_XHCI_MTK_DEBUGFS) += xhci-mtk-term-vref.o
++	xhci-hcd-$(CONFIG_USB_XHCI_MTK_DEBUGFS) += xhci-mtk-hstx-srctrl.o
++	xhci-hcd-$(CONFIG_USB_XHCI_MTK_DEBUGFS) += xhci-mtk-discth.o
++	xhci-hcd-$(CONFIG_USB_XHCI_MTK_DEBUGFS) += xhci-mtk-chgdt-en.o
+ endif
+ 
+ xhci-plat-hcd-y := xhci-plat.o
+diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
+index 5c0eb35cd007..8bd4c95a5435 100644
+--- a/drivers/usb/host/xhci-mtk.c
++++ b/drivers/usb/host/xhci-mtk.c
+@@ -18,9 +18,10 @@
+ #include <linux/pm_runtime.h>
+ #include <linux/regmap.h>
+ #include <linux/regulator/consumer.h>
+-
++#include <linux/usb/of.h>
+ #include "xhci.h"
+ #include "xhci-mtk.h"
++#include "xhci-mtk-test.h"
+ 
+ /* ip_pw_ctrl0 register */
+ #define CTRL0_IP_SW_RST	BIT(0)
+@@ -570,6 +571,7 @@ static int xhci_mtk_probe(struct platform_device *pdev)
+ 	ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
+ 	if (ret)
+ 		goto dealloc_usb2_hcd;
++	hqa_create_attr(dev);
+ 
+ 	return 0;
+ 
+@@ -604,6 +606,7 @@ static int xhci_mtk_remove(struct platform_device *dev)
+ 	struct usb_hcd	*hcd = mtk->hcd;
+ 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
+ 	struct usb_hcd  *shared_hcd = xhci->shared_hcd;
++	hqa_remove_attr(&dev->dev);
+ 
+ 	pm_runtime_put_noidle(&dev->dev);
+ 	pm_runtime_disable(&dev->dev);
+diff --git a/drivers/usb/host/xhci-mtk.h b/drivers/usb/host/xhci-mtk.h
+index 985e7a19f6f6..1540c66799d7 100644
+--- a/drivers/usb/host/xhci-mtk.h
++++ b/drivers/usb/host/xhci-mtk.h
+@@ -158,6 +158,13 @@ struct xhci_hcd_mtk {
+ 	struct regmap *uwk;
+ 	u32 uwk_reg_base;
+ 	u32 uwk_vers;
++
++#ifdef CONFIG_USB_XHCI_MTK_DEBUGFS
++	int     test_mode;
++	size_t  hqa_size;
++	u32     hqa_pos;
++	char   *hqa_buf;
++#endif
+ };
+ 
+ static inline struct xhci_hcd_mtk *hcd_to_mtk(struct usb_hcd *hcd)
+diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
+index 4bb850370bb6..710ccbe5a3b8 100644
+--- a/drivers/usb/host/xhci.c
++++ b/drivers/usb/host/xhci.c
+@@ -713,7 +713,7 @@ EXPORT_SYMBOL_GPL(xhci_run);
+  * Disable device contexts, disable IRQs, and quiesce the HC.
+  * Reset the HC, finish any completed transactions, and cleanup memory.
+  */
+-static void xhci_stop(struct usb_hcd *hcd)
++void xhci_stop(struct usb_hcd *hcd)
+ {
+ 	u32 temp;
+ 	struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
+index 02df309e4409..3af400068324 100644
+--- a/drivers/usb/host/xhci.h
++++ b/drivers/usb/host/xhci.h
+@@ -2067,6 +2067,7 @@ int xhci_halt(struct xhci_hcd *xhci);
+ int xhci_start(struct xhci_hcd *xhci);
+ int xhci_reset(struct xhci_hcd *xhci);
+ int xhci_run(struct usb_hcd *hcd);
++void xhci_stop(struct usb_hcd *hcd);
+ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks);
+ void xhci_shutdown(struct usb_hcd *hcd);
+ void xhci_init_driver(struct hc_driver *drv,
+-- 
+2.18.0
+