diff options
| author | Neil Armstrong <neil.armstrong@linaro.org> | 2023-10-23 14:41:36 +0200 |
|---|---|---|
| committer | Neil Armstrong <neil.armstrong@linaro.org> | 2023-10-26 17:39:03 +0200 |
| commit | 4aa027b3f8c1b018ab50570ccf337587cc6178f8 (patch) | |
| tree | 733c03329b384545688ae208d9c652df897aba60 | |
| parent | 72f63d85fefebed59921456bb29138fbd9f73bb7 (diff) | |
configs: meson64: add alternate USB DFU boot target
Add boot over DFU RAM as an alternate to running script at
a fixed address like done today.
The main culprit is that it's not possible to do that
on G12A/Sm1 platforms due to changes in the USB boot protocol.
With this, U-Boot will present a DFU device with a ram slot where
the Host could write a fitImage or legacy U-Boot image, then with the
detach command boot will continue trying to boot the uploaded image.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20231023-usb-dfu-boot-v1-3-df9d121c67c1@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
| -rw-r--r-- | include/configs/meson64.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/configs/meson64.h b/include/configs/meson64.h index a64817ec9b..efab9a624d 100644 --- a/include/configs/meson64.h +++ b/include/configs/meson64.h @@ -53,6 +53,30 @@ #define BOOTENV_DEV_NAME_ROMUSB(devtypeu, devtypel, instance) \ "romusb " +/* + * Fallback to "USB DFU" boot if script is not at scriptaddr + * + * DFU will expose the kernel_addr_r memory range as DFU entry, + * then with `dfu-util --detach`, booting the uploaded image + * will be attempted: + * $ dfu-util -a 0 -D fitImage + * $ dfu-util -a 0 -e + */ +#if CONFIG_IS_ENABLED(USB_GADGET) && CONFIG_IS_ENABLED(DFU_RAM) + #define BOOTENV_DEV_USB_DFU(devtypeu, devtypel, instance) \ + "bootcmd_usbdfu=" \ + "if test \"${boot_source}\" = \"usb\"; then " \ + "dfu 0 ram 0 60;" \ + "bootm ${kernel_addr_r};" \ + "fi\0" + + #define BOOTENV_DEV_NAME_USB_DFU(devtypeu, devtypel, instance) \ + "usbdfu " +#else + #define BOOTENV_DEV_USB_DFU(devtypeu, devtypel, instance) + #define BOOTENV_DEV_NAME_USB_DFU(devtypeu, devtypel, instance) +#endif + #ifdef CONFIG_CMD_USB #define BOOT_TARGET_DEVICES_USB(func) func(USB, usb, 0) #else @@ -74,6 +98,7 @@ #ifndef BOOT_TARGET_DEVICES #define BOOT_TARGET_DEVICES(func) \ func(ROMUSB, romusb, na) \ + func(USB_DFU, usbdfu, na) \ func(MMC, mmc, 0) \ func(MMC, mmc, 1) \ func(MMC, mmc, 2) \ @@ -109,6 +134,7 @@ "fdtoverlay_addr_r=" FDTOVERLAY_ADDR_R "\0" \ "ramdisk_addr_r=" RAMDISK_ADDR_R "\0" \ "fdtfile=amlogic/" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \ + "dfu_alt_info=fitimage ram " KERNEL_ADDR_R " 0x4000000 \0" \ BOOTENV #endif |