[PATCH 3/6] usb: ehci-mx6: add support for i.MXRT

[Giulio Benetti]

Add support for usb1 and usb2 present on i.IMXRT.

Signed-off-by: Giulio Benetti <giulio.benetti at benettiengineering.com>
---
 arch/arm/include/asm/arch-imxrt/imx-regs.h |  4 ++++
 drivers/usb/host/Kconfig                   |  2 +-
 drivers/usb/host/ehci-mx6.c                | 13 +++++++------
 3 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/arch/arm/include/asm/arch-imxrt/imx-regs.h b/arch/arm/include/asm/arch-imxrt/imx-regs.h
index 44c95dcd11..d01e6ca2e0 100644
--- a/arch/arm/include/asm/arch-imxrt/imx-regs.h
+++ b/arch/arm/include/asm/arch-imxrt/imx-regs.h
@@ -23,4 +23,8 @@
 #include <asm/mach-imx/regs-lcdif.h>
 #endif
 
+#define USB_BASE_ADDR		0x402E0000
+#define USB_PHY0_BASE_ADDR	0x400D9000
+#define USB_PHY1_BASE_ADDR	0x400DA000
+
 #endif /* __ASM_ARCH_IMX_REGS_H__ */
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index bf5d82f035..f34cba2395 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -149,7 +149,7 @@ config USB_EHCI_MX5
 
 config USB_EHCI_MX6
 	bool "Support for i.MX6/i.MX7ULP on-chip EHCI USB controller"
-	depends on ARCH_MX6 || ARCH_MX7ULP
+	depends on ARCH_MX6 || ARCH_MX7ULP || ARCH_IMXRT
 	default y
 	---help---
 	  Enables support for the on-chip EHCI controller on i.MX6 SoCs.
diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c
index 06be9deaaa..238c93183b 100644
--- a/drivers/usb/host/ehci-mx6.c
+++ b/drivers/usb/host/ehci-mx6.c
@@ -177,7 +177,7 @@ static void __maybe_unused
 usb_power_config_mx7ulp(void *usbphy) { }
 #endif
 
-#if defined(CONFIG_MX6) || defined(CONFIG_MX7ULP)
+#if defined(CONFIG_MX6) || defined(CONFIG_MX7ULP) || defined(CONFIG_IMXRT)
 static const unsigned phy_bases[] = {
 	USB_PHY0_BASE_ADDR,
 #if defined(USB_PHY1_BASE_ADDR)
@@ -340,7 +340,7 @@ int ehci_hcd_init(int index, enum usb_init_type init,
 		struct ehci_hccr **hccr, struct ehci_hcor **hcor)
 {
 	enum usb_init_type type;
-#if defined(CONFIG_MX6)
+#if defined(CONFIG_MX6) || defined(CONFIG_IMXRT)
 	u32 controller_spacing = 0x200;
 	struct anatop_regs __iomem *anatop =
 		(struct anatop_regs __iomem *)ANATOP_BASE_ADDR;
@@ -382,7 +382,7 @@ int ehci_hcd_init(int index, enum usb_init_type init,
 		return ret;
 	}
 
-#if defined(CONFIG_MX6)
+#if defined(CONFIG_MX6) || defined(CONFIG_IMXRT)
 	usb_power_config_mx6(anatop, index);
 #elif defined (CONFIG_MX7)
 	usb_power_config_mx7(usbnc);
@@ -392,7 +392,7 @@ int ehci_hcd_init(int index, enum usb_init_type init,
 
 	usb_oc_config(usbnc, index);
 
-#if defined(CONFIG_MX6) || defined(CONFIG_MX7ULP)
+#if defined(CONFIG_MX6) || defined(CONFIG_MX7ULP) || defined(CONFIG_IMXRT)
 	if (index < ARRAY_SIZE(phy_bases)) {
 		usb_internal_phy_clock_gate((void __iomem *)phy_bases[index], 1);
 		usb_phy_enable(ehci, (void __iomem *)phy_bases[index]);
@@ -504,7 +504,7 @@ static int ehci_usb_phy_mode(struct udevice *dev)
 	 * About fsl,usbphy, Refer to
 	 * Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt.
 	 */
-	if (is_mx6() || is_mx7ulp()) {
+	if (is_mx6() || is_mx7ulp() || is_imxrt()) {
 		phy_off = fdtdec_lookup_phandle(blob,
 						offset,
 						"fsl,usbphy");
@@ -671,7 +671,7 @@ static int ehci_usb_probe(struct udevice *dev)
 
 	usb_oc_config(priv->misc_addr, priv->portnr);
 
-#if defined(CONFIG_MX6) || defined(CONFIG_MX7ULP)
+#if defined(CONFIG_MX6) || defined(CONFIG_MX7ULP) || defined(CONFIG_IMXRT)
 	usb_internal_phy_clock_gate(priv->phy_addr, 1);
 	usb_phy_enable(ehci, priv->phy_addr);
 #endif
@@ -757,6 +757,7 @@ int ehci_usb_remove(struct udevice *dev)
 static const struct udevice_id mx6_usb_ids[] = {
 	{ .compatible = "fsl,imx27-usb" },
 	{ .compatible = "fsl,imx7d-usb" },
+	{ .compatible = "fsl,imxrt-usb" },
 	{ }
 };
 
-- 
2.25.1