Traditionally the DFU support is available only
as part 2nd stage boot loader(u-boot) and DFU
is not supported in SPL.
The SPL-DFU feature is useful for boards which has
only USB inteface and do not have external interface
like ethernet or MMC/SD to boot the board.
This patch add DFU support in SPL to flash boot inital
binary images to factory or bare-metal boards to
memory devices like SPI, eMMC, MMC/SD card using
USB interface.
This SPL-DFU support can be enabled through
Menuconfig->Boot Images->Enable SPL-DFU support
Signed-off-by: Ravi Babu <ravib...@ti.com>
---
Kconfig | 33 +++++++++++++++++++++++++++++++++
common/Makefile | 26 +++++++++++++++++++-------
common/command.c | 2 +-
scripts/Makefile.spl | 13 +++++++++++++
4 files changed, 66 insertions(+), 8 deletions(-)
diff --git a/Kconfig b/Kconfig
index f53759a..969641e 100644
--- a/Kconfig
+++ b/Kconfig
@@ -285,6 +285,39 @@ config SPL_LOAD_FIT
particular it can handle selecting from multiple device tree
and passing the correct one to U-Boot.
+config SPL_DFU
+ bool "Enable SPL with DFU to load binaries to bootdevices using USB"
+ depends on USB && CMD_DFU && TARGET_DRA7XX_EVM
+ help
+ Currently the SPL does not have capability to load the
+ binaries or boot images to boot devices like eMMC,SPI,etc.
+ This feature enables the DFU (Device Firmware Upgarde) in SPL with
+ RAM device as default bootdevice. The ROM code will load and execute
+ the SPL/MLO dfu image. The user can flash the binaries to selected
+ dfu device partition from host-pc using dfu-utils.
+ This feature will be useful to flash the binaries to factory
+ or bare-metal boards using USB interface.
+
+choice
+ bool "DFU device selection"
+ depends on CMD_DFU && SPL_DFU
+
+config SPL_DFU_RAM
+ bool "RAM device"
+ depends on CMD_DFU
+ help
+ select DDR memory device for flashing binary images to
+ the selected partition using DFU.
+
+config SPL_DFU_SF
+ bool "SPI device"
+ depends on CMD_DFU && SPL_DFU
+ help
+ select SPI flash memory device for flashing binary images to
+ the selected partition using DFU.
+
+endchoice
+
config SYS_CLK_FREQ
depends on ARC || ARCH_SUNXI
int "CPU clock frequency"
diff --git a/common/Makefile b/common/Makefile
index b23f312..0fa441f 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -6,15 +6,30 @@
#
# core
-ifndef CONFIG_SPL_BUILD
-obj-y += init/
-obj-y += main.o
-obj-y += exports.o
+
+CONFIG_INC_DFU=y
+ifdef CONFIG_SPL_BUILD
+ifndef CONFIG_SPL_DFU
+CONFIG_INC_DFU=n
+endif
+endif
+
+ifeq ($(CONFIG_INC_DFU),y)
obj-y += hash.o
ifdef CONFIG_SYS_HUSH_PARSER
obj-y += cli_hush.o
endif
+obj-y += env_attr.o
+obj-y += env_callback.o
+obj-y += env_flags.o
+endif
+
+ifndef CONFIG_SPL_BUILD
+obj-y += init/
+obj-y += main.o
+obj-y += exports.o
+
# This option is not just y/n - it can have a numeric value
ifdef CONFIG_BOOTDELAY
obj-y += autoboot.o
@@ -34,9 +49,6 @@ obj-$(CONFIG_DISPLAY_BOARDINFO_LATE) += board_info.o
obj-$(CONFIG_CMD_BOOTM) += bootm.o bootm_os.o
# environment
-obj-y += env_attr.o
-obj-y += env_callback.o
-obj-y += env_flags.o
obj-$(CONFIG_ENV_IS_IN_DATAFLASH) += env_dataflash.o
obj-$(CONFIG_ENV_IS_IN_EEPROM) += env_eeprom.o
extra-$(CONFIG_ENV_IS_EMBEDDED) += env_embedded.o
diff --git a/common/command.c b/common/command.c
index e5d9b9c..d1c049c 100644
--- a/common/command.c
+++ b/common/command.c
@@ -520,7 +520,7 @@ enum command_ret_t cmd_process(int flag, int argc, char *
const argv[],
if (argc > cmdtp->maxargs)
rc = CMD_RET_USAGE;
-#if defined(CONFIG_CMD_BOOTD)
+#if defined(CONFIG_CMD_BOOTD) && !defined(CONFIG_SPL_BUILD)
/* avoid "bootd" recursion */
else if (cmdtp->cmd == do_bootd) {
if (flag & CMD_FLAG_BOOTD) {
diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl
index ec8d8f1..be74991 100644
--- a/scripts/Makefile.spl
+++ b/scripts/Makefile.spl
@@ -35,6 +35,13 @@ else
SPL_BIN := u-boot-spl
endif
+CONFIG_INC_DFU=y
+ifdef CONFIG_SPL_BUILD
+ifndef CONFIG_SPL_DFU
+CONFIG_INC_DFU=n
+endif
+endif
+
include $(srctree)/config.mk
include $(srctree)/arch/$(ARCH)/Makefile
@@ -56,6 +63,12 @@ libs-y += common/init/
libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/
libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
libs-y += drivers/
+ifeq ($(CONFIG_INC_DFU),y)
+libs-y += drivers/dfu/
+libs-y += drivers/usb/gadget/
+libs-y += drivers/usb/gadget/udc/
+libs-y += drivers/usb/dwc3/
+endif
libs-y += dts/
libs-y += fs/
libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
--
1.7.9.5
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