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sunxi: Enable DFU for RAM

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The DFU protocol implementation in U-Boot is much faster than the
FEL protocol implementation in the boot ROM on Allwinner devices.
Using DFU instead of FEL improves the USB transfer speed from
500-900 KB/s to 3.2-3.7 MB/s. This is particularly useful for
reducing the time needed for booting systems with large initrd
images.

FEL is still useful for loading the U-Boot bootloader and a boot
script, which may then activate DFU in the following way:

   setenv dfu_alt_info ${dfu_alt_info_ram}
   dfu 0 ram 0
   bootm ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}

The rest of the files can be transferred to the device using the
"dfu-util" tool.

Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Siarhei Siamashka 2015-10-25 06:44:46 +02:00 committed by Hans de Goede
parent 1d149eddcc
commit 2a909c5f7a
1 changed files with 25 additions and 5 deletions
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30
include/configs/sunxi-common.h
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@ -335,6 +335,7 @@ extern int soft_i2c_gpio_scl;
#define CONFIG_USB_GADGET_VBUS_DRAW 0
#define CONFIG_USB_GADGET_DOWNLOAD
#define CONFIG_USB_FUNCTION_DFU
#define CONFIG_USB_FUNCTION_FASTBOOT
#define CONFIG_USB_FUNCTION_MASS_STORAGE
#endif
@ -345,6 +346,11 @@ extern int soft_i2c_gpio_scl;
#define CONFIG_G_DNL_MANUFACTURER "Allwinner Technology"
#endif
#ifdef CONFIG_USB_FUNCTION_DFU
#define CONFIG_CMD_DFU
#define CONFIG_DFU_RAM
#endif
#ifdef CONFIG_USB_FUNCTION_FASTBOOT
#define CONFIG_CMD_FASTBOOT
#define CONFIG_FASTBOOT_BUF_ADDR CONFIG_SYS_LOAD_ADDR
@ -392,13 +398,26 @@ extern int soft_i2c_gpio_scl;
* 32M uncompressed kernel, 16M compressed kernel, 1M fdt,
* 1M script, 1M pxe and the ramdisk at the end.
*/
#define KERNEL_ADDR_R __stringify(SDRAM_OFFSET(2000000))
#define FDT_ADDR_R __stringify(SDRAM_OFFSET(3000000))
#define SCRIPT_ADDR_R __stringify(SDRAM_OFFSET(3100000))
#define PXEFILE_ADDR_R __stringify(SDRAM_OFFSET(3200000))
#define RAMDISK_ADDR_R __stringify(SDRAM_OFFSET(3300000))
#define MEM_LAYOUT_ENV_SETTINGS \
"bootm_size=0xa000000\0" \
"kernel_addr_r=" __stringify(SDRAM_OFFSET(2000000)) "\0" \
"fdt_addr_r=" __stringify(SDRAM_OFFSET(3000000)) "\0" \
"scriptaddr=" __stringify(SDRAM_OFFSET(3100000)) "\0" \
"pxefile_addr_r=" __stringify(SDRAM_OFFSET(3200000)) "\0" \
"ramdisk_addr_r=" __stringify(SDRAM_OFFSET(3300000)) "\0"
"kernel_addr_r=" KERNEL_ADDR_R "\0" \
"fdt_addr_r=" FDT_ADDR_R "\0" \
"scriptaddr=" SCRIPT_ADDR_R "\0" \
"pxefile_addr_r=" PXEFILE_ADDR_R "\0" \
"ramdisk_addr_r=" RAMDISK_ADDR_R "\0"
#define DFU_ALT_INFO_RAM \
"dfu_alt_info_ram=" \
"kernel ram " KERNEL_ADDR_R " 0x1000000;" \
"fdt ram " FDT_ADDR_R " 0x100000;" \
"ramdisk ram " RAMDISK_ADDR_R " 0x4000000\0"
#ifdef CONFIG_MMC
#define BOOT_TARGET_DEVICES_MMC(func) func(MMC, mmc, 0)
@ -480,6 +499,7 @@ extern int soft_i2c_gpio_scl;
#define CONFIG_EXTRA_ENV_SETTINGS \
CONSOLE_ENV_SETTINGS \
MEM_LAYOUT_ENV_SETTINGS \
DFU_ALT_INFO_RAM \
"fdtfile=" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \
"console=ttyS0,115200\0" \
BOOTCMD_SUNXI_COMPAT \