MLK-16273-2 imx8mq: evk: add usb init for USB0 device mode

Add USB0(type-c) config and PHY init to enable device mode.

Acked-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Li Jun <jun.li@nxp.com>

diff --git a/board/freescale/imx8mq_evk/imx8m_evk.c b/board/freescale/imx8mq_evk/imx8m_evk.c
index 842eda7..14542dc 100644 (file)
--- a/board/freescale/imx8mq_evk/imx8m_evk.c
+++ b/board/freescale/imx8mq_evk/imx8m_evk.c
@@ -24,6 +24,8 @@
 #include <power/pmic.h>
 #include <power/pfuze100_pmic.h>
 #include "../common/pfuze.h"
+#include <usb.h>
+#include <dwc3-uboot.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -134,6 +136,71 @@ int board_phy_config(struct phy_device *phydev)
 }
 #endif
 
+#ifdef CONFIG_USB_DWC3
+
+#define USB_PHY_CTRL0                  0xF0040
+#define USB_PHY_CTRL0_REF_SSP_EN       BIT(2)
+
+#define USB_PHY_CTRL1                  0xF0044
+#define USB_PHY_CTRL1_RESET            BIT(0)
+#define USB_PHY_CTRL1_COMMONONN                BIT(1)
+#define USB_PHY_CTRL1_ATERESET         BIT(3)
+#define USB_PHY_CTRL1_VDATSRCENB0      BIT(19)
+#define USB_PHY_CTRL1_VDATDETENB0      BIT(20)
+
+#define USB_PHY_CTRL2                  0xF0048
+#define USB_PHY_CTRL2_TXENABLEN0       BIT(8)
+
+static struct dwc3_device dwc3_device_data = {
+       .maximum_speed = USB_SPEED_SUPER,
+       .base = USB1_BASE_ADDR,
+       .dr_mode = USB_DR_MODE_PERIPHERAL,
+       .index = 0,
+       .power_down_scale = 2,
+};
+
+int usb_gadget_handle_interrupts(void)
+{
+       dwc3_uboot_handle_interrupt(0);
+       return 0;
+}
+
+static void dwc3_nxp_usb_phy_init(struct dwc3_device *dwc3)
+{
+       u32 RegData;
+
+       RegData = readl(dwc3->base + USB_PHY_CTRL1);
+       RegData &= ~(USB_PHY_CTRL1_VDATSRCENB0 | USB_PHY_CTRL1_VDATDETENB0 |
+                       USB_PHY_CTRL1_COMMONONN);
+       RegData |= USB_PHY_CTRL1_RESET | USB_PHY_CTRL1_ATERESET;
+       writel(RegData, dwc3->base + USB_PHY_CTRL1);
+
+       RegData = readl(dwc3->base + USB_PHY_CTRL0);
+       RegData |= USB_PHY_CTRL0_REF_SSP_EN;
+       writel(RegData, dwc3->base + USB_PHY_CTRL0);
+
+       RegData = readl(dwc3->base + USB_PHY_CTRL2);
+       RegData |= USB_PHY_CTRL2_TXENABLEN0;
+       writel(RegData, dwc3->base + USB_PHY_CTRL2);
+
+       RegData = readl(dwc3->base + USB_PHY_CTRL1);
+       RegData &= ~(USB_PHY_CTRL1_RESET | USB_PHY_CTRL1_ATERESET);
+       writel(RegData, dwc3->base + USB_PHY_CTRL1);
+}
+
+int board_usb_init(int index, enum usb_init_type init)
+{
+       dwc3_nxp_usb_phy_init(&dwc3_device_data);
+       return dwc3_uboot_init(&dwc3_device_data);
+}
+
+int board_usb_cleanup(int index, enum usb_init_type init)
+{
+       dwc3_uboot_exit(index);
+       return 0;
+}
+#endif
+
 int board_init(void)
 {
        board_qspi_init();