keystone: usb: add support of usb xhci
Add support of usb xhci. xHCI controls all USB speeds of the Host
mode, that is, the SS through the SS PHY, as well as the HS, FS, and
LS through the USB2 PHY. xHCI replaces and supersedes all previous
host HCIs (HS-only EHCI, FS/LS OHCI and UHCI), and is therefore not
backwards compatible with any of them. The USB3SS’s USB Controller is
fully compliant with xHC.
Acked-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: WingMan Kwok <w-kwok2@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
diff --git a/arch/arm/include/asm/arch-keystone/hardware.h b/arch/arm/include/asm/arch-keystone/hardware.h
index ddc4be3..c1642a5 100644
--- a/arch/arm/include/asm/arch-keystone/hardware.h
+++ b/arch/arm/include/asm/arch-keystone/hardware.h
@@ -163,6 +163,12 @@
/* MSMC control */
#define KS2_MSMC_CTRL_BASE 0x0bc00000
+/* USB */
+#define KS2_USB_SS_BASE 0x02680000
+#define KS2_USB_HOST_XHCI_BASE (KS2_USB_SS_BASE + 0x10000)
+#define KS2_DEV_USB_PHY_BASE 0x02620738
+#define KS2_USB_PHY_CFG_BASE 0x02630000
+
#ifdef CONFIG_SOC_K2HK
#include <asm/arch/hardware-k2hk.h>
#endif
diff --git a/arch/arm/include/asm/arch-keystone/xhci-keystone.h b/arch/arm/include/asm/arch-keystone/xhci-keystone.h
new file mode 100644
index 0000000..3aab4e0
--- /dev/null
+++ b/arch/arm/include/asm/arch-keystone/xhci-keystone.h
@@ -0,0 +1,21 @@
+/*
+ * USB 3.0 DRD Controller
+ *
+ * (C) Copyright 2012-2014
+ * Texas Instruments Incorporated, <www.ti.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#define USB3_PHY_REF_SSP_EN BIT(29)
+#define USB3_PHY_OTG_VBUSVLDECTSEL BIT(16)
+
+/* KEYSTONE2 XHCI PHY register structure */
+struct keystone_xhci_phy {
+ unsigned int phy_utmi; /* ctl0 */
+ unsigned int phy_pipe; /* ctl1 */
+ unsigned int phy_param_ctrl_1; /* ctl2 */
+ unsigned int phy_param_ctrl_2; /* ctl3 */
+ unsigned int phy_clock; /* ctl4 */
+ unsigned int phy_pll; /* ctl5 */
+};