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ARM: imx6: dh-imx6: Enable USB OTG ID pin pull up in SPL

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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.vasut@mailbox.org>
Tested-by: Christoph Niedermaier <cniedermaier@dh-electronics.com>
This commit is contained in:
Marek Vasut
2025-08-07 08:16:03 -03:00
committed by Fabio Estevam
parent 5275b5612b
commit d011462eea
1 changed files with 5 additions and 1 deletions
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board/dhelectronics/dh_imx6/dh_imx6_spl.c
+5 -1
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@@ -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)),
};