[PATCH 5/7] rockchip: Add DFU to SPL for RK3399

[FUKAUMI Naoki]

Boot the RK3399 from the USB OTG port using rkflashtool[1] or
rkusbboot[2] and dfu-util.

1a. Download the TPL and SPL using rkflashtool

$ openssl rc4 -provider legacy -K 7c4e0304550509072d2c7b38170d1711 \
        < mkimage-in-simple-bin.mkimage-rockchip-tpl | rkflashtool l
$ openssl rc4 -provider legacy -K 7c4e0304550509072d2c7b38170d1711 \
        < mkimage-in-simple-bin.mkimage-u-boot-spl | rkflashtool L

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 <na...@radxa.com>
---
 arch/arm/dts/rk3399-u-boot.dtsi        | 10 ++++++++++
 arch/arm/mach-rockchip/rk3399/rk3399.c |  1 +
 configs/generic-rk3399_defconfig       |  9 +++++++++
 include/configs/rk3399_common.h        | 11 +++++++----
 4 files changed, 27 insertions(+), 4 deletions(-)

diff --git a/arch/arm/dts/rk3399-u-boot.dtsi b/arch/arm/dts/rk3399-u-boot.dtsi
index 0e3143f8235..ce703d02538 100644
--- a/arch/arm/dts/rk3399-u-boot.dtsi
+++ b/arch/arm/dts/rk3399-u-boot.dtsi
@@ -192,6 +192,16 @@
        bootph-pre-ram;
 };
 
+&usbdrd3_0 {
+       bootph-pre-ram;
+       bootph-some-ram;
+};
+
+&usbdrd_dwc3_0 {
+       bootph-pre-ram;
+       bootph-some-ram;
+};
+
 &vopb {
        bootph-some-ram;
 };
diff --git a/arch/arm/mach-rockchip/rk3399/rk3399.c 
b/arch/arm/mach-rockchip/rk3399/rk3399.c
index 1ce43c6f0d4..681eecb1edd 100644
--- a/arch/arm/mach-rockchip/rk3399/rk3399.c
+++ b/arch/arm/mach-rockchip/rk3399/rk3399.c
@@ -27,6 +27,7 @@ const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
        [BROM_BOOTSOURCE_EMMC] = "/mmc@fe330000",
        [BROM_BOOTSOURCE_SPINOR] = "/spi@ff1d0000/flash@0",
        [BROM_BOOTSOURCE_SD] = "/mmc@fe320000",
+       [BROM_BOOTSOURCE_USB] = "/usb@fe800000/usb@fe800000",
 };
 
 static struct mm_region rk3399_mem_map[] = {
diff --git a/configs/generic-rk3399_defconfig b/configs/generic-rk3399_defconfig
index 4df70fa4c15..fd08159fa6b 100644
--- a/configs/generic-rk3399_defconfig
+++ b/configs/generic-rk3399_defconfig
@@ -24,11 +24,13 @@ CONFIG_DEFAULT_FDT_FILE="rockchip/rk3399-generic.dtb"
 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=0xE0000
 CONFIG_SPL_ATF_NO_PLATFORM_PARAM=y
 CONFIG_CMD_MEMINFO=y
 CONFIG_CMD_MEMINFO_MAP=y
+CONFIG_CMD_DFU=y
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_GPT=y
 CONFIG_CMD_MISC=y
@@ -44,6 +46,9 @@ CONFIG_OF_SPL_REMOVE_PROPS="clock-names interrupt-parent 
assigned-clocks assigne
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_NO_NET=y
 # CONFIG_ADC is not set
+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_SUPPORT_EMMC_RPMB=y
@@ -68,9 +73,13 @@ CONFIG_ROCKCHIP_SPI=y
 CONFIG_SYSRESET=y
 CONFIG_SYSRESET_PSCI=y
 CONFIG_USB=y
+CONFIG_SPL_DM_USB_GADGET=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
diff --git a/include/configs/rk3399_common.h b/include/configs/rk3399_common.h
index 76f40e7cd5f..c6db5e5d8e2 100644
--- a/include/configs/rk3399_common.h
+++ b/include/configs/rk3399_common.h
@@ -13,8 +13,6 @@
 #define CFG_SYS_SDRAM_BASE             0
 #define SDRAM_MAX_SIZE                 0xf8000000
 
-#ifndef CONFIG_XPL_BUILD
-
 #ifndef ROCKCHIP_DEVICE_SETTINGS
 #define ROCKCHIP_DEVICE_SETTINGS
 #endif
@@ -31,13 +29,18 @@
        "ramdisk_addr_r=0x12180000\0"   \
        "kernel_comp_size=0x8000000\0"
 
+#if defined(CONFIG_SPL_DFU) && defined(CONFIG_XPL_BUILD)
+#define CFG_EXTRA_ENV_SETTINGS                         \
+       "dfu_alt_info_ram=u-boot.itb ram "              \
+       __stringify(CONFIG_SPL_LOAD_FIT_ADDRESS) " "    \
+       __stringify(CONFIG_SYS_DFU_MAX_FILE_SIZE) "\0"
+#else
 #define CFG_EXTRA_ENV_SETTINGS         \
        "fdtfile=" CONFIG_DEFAULT_FDT_FILE "\0" \
        "partitions=" PARTS_DEFAULT     \
        ENV_MEM_LAYOUT_SETTINGS         \
        ROCKCHIP_DEVICE_SETTINGS        \
        "boot_targets=" BOOT_TARGETS "\0"
-
-#endif /* CONFIG_XPL_BUILD */
+#endif
 
 #endif /* __CONFIG_RK3399_COMMON_H */
-- 
2.43.0