[PATCH v1 20/24] board: colibri_imx7: fix usb start on solo

[Marcel Ziswiler]

From: Marcel Ziswiler <marcel.ziswiler at toradex.com>

This fixes the following crash when run on a Colibri iMX7S aka solo:

Colibri iMX7 # usb start
starting USB...
Bus usb at 30b10000: USB EHCI 1.00
Bus usb at 30b20000:

The i.MX 7Solo has only one single USB OTG1 but no USB host port. Trying
to initialize the nonexisting port just crashes.

While at it also drop board_usb_phy_mode() which is also no longer used
in the driver model age.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler at toradex.com>
---

 board/toradex/colibri_imx7/colibri_imx7.c | 40 +++++------------------
 configs/colibri_imx7_defconfig            |  1 +
 2 files changed, 9 insertions(+), 32 deletions(-)

diff --git a/board/toradex/colibri_imx7/colibri_imx7.c b/board/toradex/colibri_imx7/colibri_imx7.c
index 6822102d2c3..486299b5e93 100644
--- a/board/toradex/colibri_imx7/colibri_imx7.c
+++ b/board/toradex/colibri_imx7/colibri_imx7.c
@@ -319,40 +319,16 @@ int ft_board_setup(void *blob, struct bd_info *bd)
 #endif
 
 #ifdef CONFIG_USB_EHCI_MX7
-static iomux_v3_cfg_t const usb_otg2_pads[] = {
-	MX7D_PAD_UART3_CTS_B__USB_OTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
-};
-
-int board_ehci_hcd_init(int port)
+int board_fix_fdt(void *rw_fdt_blob)
 {
-	switch (port) {
-	case 0:
-		break;
-	case 1:
-		if (is_cpu_type(MXC_CPU_MX7S))
-			return -ENODEV;
-
-		imx_iomux_v3_setup_multiple_pads(usb_otg2_pads,
-						 ARRAY_SIZE(usb_otg2_pads));
-		break;
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
+	/* i.MX 7Solo has only one single USB OTG1 but no USB host port */
+	if (is_cpu_type(MXC_CPU_MX7S)) {
+		int offset = fdt_path_offset(rw_fdt_blob, "/soc/bus at 30800000/usb at 30b20000");
 
-int board_usb_phy_mode(int port)
-{
-	switch (port) {
-	case 0:
-		if (gpio_get_value(USB_CDET_GPIO))
-			return USB_INIT_DEVICE;
-		else
-			return USB_INIT_HOST;
-	case 1:
-	default:
-		return USB_INIT_HOST;
+		return fdt_status_disabled(rw_fdt_blob, offset);
 	}
+
+	return 0;
 }
 
 #if defined(CONFIG_BOARD_LATE_INIT)
@@ -373,4 +349,4 @@ int board_late_init(void)
 }
 #endif /* CONFIG_BOARD_LATE_INIT */
 
-#endif
+#endif /* CONFIG_USB_EHCI_MX7 */
diff --git a/configs/colibri_imx7_defconfig b/configs/colibri_imx7_defconfig
index c00d1938eec..202fd05394d 100644
--- a/configs/colibri_imx7_defconfig
+++ b/configs/colibri_imx7_defconfig
@@ -12,6 +12,7 @@ CONFIG_TARGET_COLIBRI_IMX7=y
 CONFIG_IMX_RDC=y
 CONFIG_IMX_BOOTAUX=y
 CONFIG_IMX_HAB=y
+CONFIG_OF_BOARD_FIXUP=y
 CONFIG_DISTRO_DEFAULTS=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
-- 
2.34.1