07a5e432c8
This adds support for the Kontron i.MX8MP OSM-S size system-on-module +
eval board.
CPU: NXP i.MX8MP @ 1600MHz (quad-core A53)
Memory: 4 (up to 8) GByte LPDDR4-RAM
Storage: 32 (up to 128) GByte eMMC + microSD slot
Ethernet: 2x 1 Gbit/s IEEE (1x with TSN)
UART: 1x UART console output on the Mini-B USB Debug Port
(signals are really UART on this Mini-B USB port!!!, there is
an adapter with ftdi available from Kontron)
1x RS232, 1x RS485
USB: 2x USB 2.0 Type-A, 1x USB 3.0 Type-C DRP
Misc: 8 (up to 128) kByte EEPROM (at24), RTC, 2x CAN, HDMI, 1x PCIe
This will create an SD card image for the board.
To use this image you have to bring the board to the recovery boot mode
(normal boot mode is eMMC). At the time of writing, the SoM (or the SoC)
has a bug that the FORCE_RECOVERY signal (switch S1 on the eval board)
doesn't work as long as the eMMC boot0 partition contains data.
Therefore you have to wipe this boot0 partition to be able to boot from
SD card. To do this call the following commands at uboot:
mmc dev 0 1
mmc erase 0 0x2000
After that, the system will try to boot from SD card.
Signed-off-by: Martin Schiller <ms@dev.tdt.de>
80 lines
2.8 KiB
Diff
80 lines
2.8 KiB
Diff
From 0153bcd37c61fdfd4953bc3e2953f00a19577e2a Mon Sep 17 00:00:00 2001
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From: Frieder Schrempf <frieder.schrempf@kontron.de>
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Date: Mon, 21 Jul 2025 12:05:42 +0200
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Subject: arm64: dts: imx8mp-kontron: Fix GPIO labels for latest BL board
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Hardware rev 3 changed a few signals. Reflect these changes in
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the GPIO labels.
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* digital IOs were moved to GPIO expander
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* remove labels for unused signals
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* add labels for TFT, CSI and USB hub IOs
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Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
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Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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---
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.../boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts | 30 ++++++++++------------
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1 file changed, 14 insertions(+), 16 deletions(-)
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--- a/arch/arm64/boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts
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+++ b/arch/arm64/boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts
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@@ -123,38 +123,36 @@
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/*
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* Rename SoM signals according to board usage:
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- * GPIO_B_0 -> DIO1_OUT
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- * GPIO_B_1 -> DIO2_OUT
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+ * GPIO_B_0 -> IO_EXP_INT
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+ * GPIO_B_1 -> IO_EXP_RST
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*/
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&gpio3 {
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gpio-line-names = "PCIE_WAKE", "PCIE_CLKREQ", "PCIE_A_PERST", "SDIO_B_D5",
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"SDIO_B_D6", "SDIO_B_D7", "SPI_A_WP", "SPI_A_HOLD",
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"UART_B_RTS", "UART_B_CTS", "SDIO_B_D0", "SDIO_B_D1",
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"SDIO_B_D2", "SDIO_B_D3", "SDIO_B_WP", "SDIO_B_D4",
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- "PCIE_SM_ALERT", "SDIO_B_CLK", "SDIO_B_CMD", "DIO1_OUT",
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- "DIO2_OUT", "", "BOOT_SEL0", "BOOT_SEL1",
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+ "PCIE_SM_ALERT", "SDIO_B_CLK", "SDIO_B_CMD", "IO_EXP_INT",
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+ "IO_EXP_RST", "", "BOOT_SEL0", "BOOT_SEL1",
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"", "", "SDIO_B_CD", "SDIO_B_PWR_EN",
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"HDMI_CEC", "HDMI_HPD";
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};
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/*
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- * Rename SoM signals according to board usage:
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- * GPIO_B_5 -> DIO2_IN
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- * GPIO_B_6 -> DIO3_IN
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- * GPIO_B_7 -> DIO4_IN
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- * GPIO_B_3 -> DIO4_OUT
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- * GPIO_B_4 -> DIO1_IN
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- * GPIO_B_2 -> DIO3_OUT
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+ * Rename SoM signals according to board usage and remove labels for unsed pins:
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+ * GPIO_A_6 -> TFT_RESET
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+ * GPIO_A_7 -> TFT_STBY
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+ * GPIO_B_3 -> CSI_ENABLE
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+ * GPIO_B_2 -> USB_HUB_RST
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*/
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&gpio4 {
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- gpio-line-names = "DIO2_IN", "DIO3_IN", "DIO4_IN", "GPIO_C_0",
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+ gpio-line-names = "", "", "", "",
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"ETH_A_MDC", "ETH_A_MDIO", "ETH_A_RXD0", "ETH_A_RXD1",
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"ETH_A_RXD2", "ETH_A_RXD3", "ETH_A_RX_DV", "ETH_A_RX_CLK",
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"ETH_A_TXD0", "ETH_A_TXD1", "ETH_A_TXD2", "ETH_A_TXD3",
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- "ETH_A_TX_EN", "ETH_A_TX_CLK", "DIO4_OUT", "DIO1_IN",
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- "DIO3_OUT", "GPIO_A_6", "CAN_A_TX", "UART_A_CTS",
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+ "ETH_A_TX_EN", "ETH_A_TX_CLK", "CSI_ENABLE", "",
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+ "USB_HUB_RST", "TFT_RESET", "CAN_A_TX", "UART_A_CTS",
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"UART_A_RTS", "CAN_A_RX", "CAN_B_TX", "CAN_B_RX",
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- "GPIO_A_7", "CARRIER_PWR_EN", "I2S_A_DATA_IN", "I2S_LRCLK";
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+ "TFT_STBY", "CARRIER_PWR_EN", "I2S_A_DATA_IN", "I2S_LRCLK";
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};
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/*
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@@ -325,4 +323,4 @@
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MX8MP_IOMUXC_NAND_DQS__GPIO3_IO14 0x46
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>;
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};
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-};
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\ No newline at end of file
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+};
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