[PATCH 3/6] rockchip: Add DFU to boot from USB for Radxa ROCK 3B

[FUKAUMI Naoki]

Boot the Radxa ROCK 3B from the USB OTG port using rkflashtool[1] or
rkusbboot[2] and dfu-util.

1a. Download the TPL and SPL using rkflashtool

$ rkflashtool l < mkimage-in-simple-bin.mkimage-rockchip-tpl
$ rkflashtool L < mkimage-in-simple-bin.mkimage-u-boot-spl

1b. Download the TPL and SPL using rkusbboot

$ rkusbboot \
	mkimage-in-simple-bin.mkimage-rockchip-tpl \
	mkimage-in-simple-bin.mkimage-u-boot-spl

2. Download the U-Boot

$ dfu-util -a 0 -D u-boot.itb

[1] https://github.com/linux-rockchip/rkflashtool
[2] https://github.com/RadxaNaoki/rkusbboot

Signed-off-by: FUKAUMI Naoki <naoki at radxa.com>
---
 configs/rock-3b-rk3568_defconfig | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/configs/rock-3b-rk3568_defconfig b/configs/rock-3b-rk3568_defconfig
index 2023feb36c2..45092aec6ac 100644
--- a/configs/rock-3b-rk3568_defconfig
+++ b/configs/rock-3b-rk3568_defconfig
@@ -28,9 +28,11 @@ CONFIG_DISPLAY_BOARDINFO_LATE=y
 CONFIG_SPL_MAX_SIZE=0x40000
 CONFIG_SPL_PAD_TO=0x7f8000
 # CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
+CONFIG_SPL_ENV_SUPPORT=y
 CONFIG_SPL_SPI_LOAD=y
 CONFIG_SYS_SPI_U_BOOT_OFFS=0x60000
 CONFIG_SPL_ATF=y
+CONFIG_CMD_DFU=y
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_GPT=y
 CONFIG_CMD_I2C=y
@@ -54,6 +56,9 @@ CONFIG_SPL_SYSCON=y
 CONFIG_SCSI_AHCI=y
 CONFIG_AHCI_PCI=y
 CONFIG_SPL_CLK=y
+CONFIG_DFU_RAM=y
+CONFIG_SYS_DFU_DATA_BUF_SIZE=0x100000
+CONFIG_SYS_DFU_MAX_FILE_SIZE=0x200000
 # CONFIG_USB_FUNCTION_FASTBOOT is not set
 CONFIG_ROCKCHIP_GPIO=y
 CONFIG_SYS_I2C_ROCKCHIP=y
@@ -89,12 +94,16 @@ CONFIG_SYS_NS16550_MEM32=y
 CONFIG_ROCKCHIP_SFC=y
 CONFIG_SYSRESET=y
 CONFIG_USB=y
+CONFIG_SPL_DM_USB_GADGET=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_GENERIC=y
 CONFIG_USB_DWC3=y
 CONFIG_USB_DWC3_GENERIC=y
+CONFIG_SPL_USB_DWC3_GENERIC=y
 CONFIG_USB_GADGET=y
+CONFIG_SPL_USB_GADGET=y
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_USB_FUNCTION_ROCKUSB=y
+CONFIG_SPL_DFU=y
 CONFIG_ERRNO_STR=y
-- 
2.43.0