Enable SoC pull up for USB OTG ID pin in SPL. There is no dedicated pull up
resistor on the SoM itself, and the pull up is mandatory for correct USB OTG
ID pin detection. U-Boot proper already configures the USB OTG ID pin pull
up via DT pinctrl node entry.
Signed-off-by: Marek Vasut <marek.va...@mailbox.org>
---
Cc: Andreas Geisreiter <ageisrei...@dh-electronics.de>
Cc: Christoph Niedermaier <cniederma...@dh-electronics.com>
Cc: Tom Rini <tr...@konsulko.com>
Cc: u-b...@dh-electronics.com
Cc: u-boot@lists.denx.de
---
board/dhelectronics/dh_imx6/dh_imx6_spl.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/board/dhelectronics/dh_imx6/dh_imx6_spl.c
b/board/dhelectronics/dh_imx6/dh_imx6_spl.c
index a50763e1926..eb9bc93d973 100644
--- a/board/dhelectronics/dh_imx6/dh_imx6_spl.c
+++ b/board/dhelectronics/dh_imx6/dh_imx6_spl.c
@@ -49,6 +49,10 @@
(PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
PAD_CTL_SRE_FAST | PAD_CTL_HYS)
+#define OTG_PAD_CTRL \
+ (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
+ PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
+
static const struct mx6dq_iomux_ddr_regs dhcom6dq_ddr_ioregs = {
.dram_sdclk_0 = 0x00020030,
.dram_sdclk_1 = 0x00020030,
@@ -509,7 +513,7 @@ int board_mmc_init(struct bd_info *bis)
/* USB */
static iomux_v3_cfg_t const usb_pads[] = {
- IOMUX_PADS(PAD_GPIO_1__USB_OTG_ID | MUX_PAD_CTRL(NO_PAD_CTRL)),
+ IOMUX_PADS(PAD_GPIO_1__USB_OTG_ID | MUX_PAD_CTRL(OTG_PAD_CTRL)),
IOMUX_PADS(PAD_EIM_D31__GPIO3_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};
--
2.47.2
