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ARM: imx: Enable SDP download in SPL on DH i.MX6 DHSOM

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Enable SDP protocol support in SPL for DH i.MX6 DHSOM, now that those
components fit into the SPL due to LTO.

To start U-Boot via SDP upload on i.MX6 DHSOM based board, proceed as follows:
- Compile imx_usb [1] .
- Power off the i.MX6 DHSOM based board.
- Connect both USB-serial console and USB-OTG miniB ports to host PC.
- Switch board to USB boot mode.
- Power on the board.
- Verify using '$ dmesg' that a new device has been detected as follows:
    New USB device found, idVendor=15a2, idProduct=0054, bcdDevice= 0.01
    New USB device strings: Mfr=1, Product=2, SerialNumber=0
    Product: SE Blank ARIK
    Manufacturer: Freescale SemiConductor Inc

- Upload U-Boot SPL:
$ imx_usb u-boot-with-spl.imx

- Wait for SPL to come up, the following print ought to be the last on
  UART console:
SDP: handle requests...

- Upload U-Boot proper:
$ imx_usb u-boot.img

[1] https://github.com/boundarydevices/imx_usb_loader.git

Signed-off-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Marek Vasut 2023-03-07 08:51:05 +01:00 • committed by Stefano Babic
parent a25dcda452
commit d08c000821
2 changed files with 5 additions and 2 deletions
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5
configs/dh_imx6_defconfig
View file

@ -39,6 +39,10 @@ CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
CONFIG_SYS_SPL_MALLOC=y
CONFIG_SPL_SPI_LOAD=y
CONFIG_SYS_SPI_U_BOOT_OFFS=0x11400
CONFIG_SPL_USB_HOST=y
CONFIG_SPL_USB_GADGET=y
CONFIG_SPL_USB_SDP_SUPPORT=y
CONFIG_SPL_WATCHDOG=y
CONFIG_SYS_MAXARGS=32
CONFIG_SYS_PBSIZE=532
CONFIG_CMD_MEMTEST=y
@ -113,6 +117,7 @@ CONFIG_USB_GADGET_MANUFACTURER="dh"
CONFIG_USB_GADGET_VENDOR_NUM=0x0525
CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
CONFIG_CI_UDC=y
CONFIG_SDP_LOADADDR=0x17ffffc0
CONFIG_USB_GADGET_DOWNLOAD=y
CONFIG_WATCHDOG_TIMEOUT_MSECS=60000
CONFIG_IMX_WATCHDOG=y

2
include/configs/dh_imx6.h
View file

@ -31,7 +31,6 @@
#define CFG_MXC_UART_BASE UART1_BASE
/* USB Configs */
#ifdef CONFIG_CMD_USB
#define CFG_MXC_USB_PORTSC (PORT_PTS_UTMI | PORT_PTS_PTW)
#define CFG_MXC_USB_FLAGS 0
@ -39,7 +38,6 @@
#if defined(CONFIG_CMD_DFU) || defined(CONFIG_CMD_USB_MASS_STORAGE)
#define DFU_DEFAULT_POLL_TIMEOUT 300
#endif
#endif
#define CFG_EXTRA_ENV_SETTINGS \
"console=ttymxc0,115200\0" \