Add Serial Download Protocol support as it is a useful method to load flash.bin to RAM and run it via 'uuu'.
With this patch, it is possible to start both U-Boot SPL and U-Boot proper using the following 'uuu'command:
$ uuu -brun spl flash.bin
Based on a patch from Marek Vasut for the imx8mm-mx8menlo board.
Also, to fit the SPL binary into the internal RAM, select CONFIG_LTO to reduce its size.
Signed-off-by: Fabio Estevam festevam@denx.de --- arch/arm/dts/imx8mm-evk-u-boot.dtsi | 16 ++++++++++++++++ configs/imx8mm_evk_defconfig | 21 +++++++++++++++++++++ 2 files changed, 37 insertions(+)
diff --git a/arch/arm/dts/imx8mm-evk-u-boot.dtsi b/arch/arm/dts/imx8mm-evk-u-boot.dtsi index 36fbf56bc5..d82428f8fe 100644 --- a/arch/arm/dts/imx8mm-evk-u-boot.dtsi +++ b/arch/arm/dts/imx8mm-evk-u-boot.dtsi @@ -20,6 +20,10 @@ }; };
+&aips4 { + u-boot,dm-spl; +}; + ®_usdhc2_vmmc { u-boot,off-on-delay-us = <20000>; }; @@ -84,6 +88,18 @@ u-boot,dm-spl; };
+&usbmisc1 { + u-boot,dm-spl; +}; + +&usbphynop1 { + u-boot,dm-spl; +}; + +&usbotg1 { + u-boot,dm-spl; +}; + &usdhc1 { u-boot,dm-spl; }; diff --git a/configs/imx8mm_evk_defconfig b/configs/imx8mm_evk_defconfig index 7bcedcd51f..2dff26b3eb 100644 --- a/configs/imx8mm_evk_defconfig +++ b/configs/imx8mm_evk_defconfig @@ -17,6 +17,7 @@ CONFIG_SPL_SERIAL=y CONFIG_SPL_DRIVERS_MISC=y CONFIG_SPL=y CONFIG_SYS_LOAD_ADDR=0x40480000 +CONFIG_LTO=y CONFIG_DISTRO_DEFAULTS=y CONFIG_FIT=y CONFIG_FIT_EXTERNAL_OFFSET=0x3000 @@ -38,6 +39,9 @@ CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR=y CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x300 CONFIG_SPL_I2C=y CONFIG_SPL_POWER=y +CONFIG_SPL_USB_HOST=y +CONFIG_SPL_USB_GADGET=y +CONFIG_SPL_USB_SDP_SUPPORT=y CONFIG_SPL_WATCHDOG=y CONFIG_SYS_MAXARGS=64 CONFIG_SYS_CBSIZE=2048 @@ -50,6 +54,8 @@ CONFIG_CMD_FUSE=y CONFIG_CMD_GPIO=y CONFIG_CMD_I2C=y CONFIG_CMD_MMC=y +CONFIG_CMD_USB_SDP=y +CONFIG_CMD_USB_MASS_STORAGE=y CONFIG_CMD_CACHE=y CONFIG_CMD_REGULATOR=y CONFIG_CMD_EXT4_WRITE=y @@ -80,9 +86,13 @@ CONFIG_PHY_ATHEROS=y CONFIG_PHY_GIGE=y CONFIG_FEC_MXC=y CONFIG_MII=y +CONFIG_SPL_PHY=y +CONFIG_SPL_NOP_PHY=y CONFIG_PINCTRL=y CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_IMX8M=y +CONFIG_POWER_DOMAIN=y +CONFIG_IMX8M_POWER_DOMAIN=y CONFIG_DM_PMIC=y CONFIG_SPL_DM_PMIC_PCA9450=y CONFIG_DM_REGULATOR=y @@ -97,4 +107,15 @@ CONFIG_SPL_SYSRESET=y CONFIG_SYSRESET_PSCI=y CONFIG_SYSRESET_WATCHDOG=y CONFIG_DM_THERMAL=y +CONFIG_USB=y +CONFIG_USB_EHCI_HCD=y +CONFIG_MXC_USB_OTG_HACTIVE=y +# CONFIG_USB_STORAGE is not set +CONFIG_USB_GADGET=y +CONFIG_USB_GADGET_MANUFACTURER="FSL" +CONFIG_USB_GADGET_VENDOR_NUM=0x0525 +CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5 +CONFIG_CI_UDC=y +CONFIG_SDP_LOADADDR=0x40400000 +CONFIG_USB_GADGET_DOWNLOAD=y CONFIG_IMX_WATCHDOG=y