u-boot.git/drivers/dfu, branch v2020.01

dfu: add dependency on the raw NAND core

2019-12-04T22:10:51+00:00

CONFIG_DFU_NAND needs the raw NAND core being compiled.

Also fix the colibri_vf defconfig to reflect this dependency.

Signed-off-by: Miquel Raynal 
Reviewed-by: Boris Brezillon

mtd: rename CONFIG_MTD -> CONFIG_DM_MTD

2019-12-04T04:04:10+00:00

CONFIG_MTD must be reserved for the MTD core. Like any other
subsystem, prefix the symbol by DM when it comes to DM support.

Signed-off-by: Miquel Raynal 
Reviewed-by: Boris Brezillon 
[trini: Add Kconfig files]
Signed-off-by: Tom Rini

dfu: add callback for flush and initiated operation

2019-10-31T11:12:31+00:00

Add weak callback to allow board specific behavior
- flush
- initiated

This patch prepare usage of DFU back end for communication with
STM32CubeProgrammer on stm32mp1 platform with stm32prog command.

Signed-off-by: Patrick Delaunay

dfu: add DFU virtual backend

2019-10-31T11:12:31+00:00

Add a virtual DFU backend to allow board specific read and write
(for OTP update for example).

Acked-by: Lukasz Majewski 
Signed-off-by: Patrick Delaunay

dfu: add partition support for MTD backend

2019-10-31T11:12:31+00:00

Add the support of MTD partition for the MTD backend.

The expected dfu_alt_info for one alternate on the mtd device :
	 part 
         partubi 

"partubi" also erase up to the end of the partition after write operation.

For example: dfu_alt_info = "spl part 1;u-boot part 2; UBI partubi 3"

U-Boot> dfu 0 mtd nand0

Acked-by: Lukasz Majewski 
Signed-off-by: Patrick Delaunay

dfu: add backend for MTD device

2019-10-31T11:12:31+00:00

Add DFU backend for MTD device: allow to read
and write on all MTD device (NAND, SPI-NOR,
SPI-NAND,...)

For example :
> set dfu_alt_info "nand_raw raw 0x0 0x100000"
> dfu 0 mtd nand0

This MTD backend provides the same level than dfu nand
backend for NAND and dfu sf backend for SPI-NOR;
So it can replace booth of them but it also
add support of spi-nand.

> set dfu_alt_info "nand_raw raw 0x0 0x100000"
> dfu 0 mtd spi-nand0

The backend code is based on the "mtd" command
introduced by commit 5db66b3aee6f ("cmd: mtd:
add 'mtd' command")

Signed-off-by: Patrick Delaunay

dfu: allow read with no data without error for EOF indication

2019-10-31T11:12:31+00:00

This patch allows the DFU backend to indicate that that it can't
provide no more data to fill the DFU buffer, by setting b_left =0
without error, even if the size of received data is lower of the
expected total size indicated by get_medium_size.

For USB DFU stack point of view, it is acceptable:
the read length < requested size in DFU_UPLOAD and the
transaction is stopped.

That avoid infinite loop issue in dfu_read_buffer_fill because the
size for the DFU read is limited by get_medium_size = r_left
and the DFU stack expects that read is allowed up to this size.

This issue never occurs for current flash device (where chunk are
always completely read, and b_left will be never 0) but it is useful for
virtual partition when the backend only know the max size of this
alternate, the real size of the data are only known in the read
treatment.

PS: for file access on mmc, EOF is never reached as
    dfu_get_medium_size_mmc returns the exact size of the file.

Signed-off-by: Patrick Delaunay

dfu: allow to manage DFU on several devices

2019-10-31T11:12:31+00:00

Add support of DFU for several interface/device
with one command.

The format for "dfu_alt_info" in this case is :
-  '='alternate list (';' separated)
- each interface is separated by '&'

The previous behavior is always supported.

One example for NOR (bootloaders) + NAND (rootfs in UBI):

U-Boot> env set dfu_alt_info \
"sf 0:0:10000000:0=spl part 0 1;u-boot part 0 2; \
u-boot-env part 0 3&nand 0=UBI partubi 0,3"

U-Boot> dfu 0 list

DFU alt settings list:
dev: SF alt: 0 name: spl layout: RAW_ADDR
dev: SF alt: 1 name: ssbl layout: RAW_ADDR
dev: SF alt: 2 name: u-boot-env layout: RAW_ADDR
dev: NAND alt: 3 name: UBI layout: RAW_ADDR

U-Boot> dfu 0

$> dfu-util -l

Found DFU: [0483:5720] ver=9999, devnum=96, cfg=1,\
 intf=0, alt=3, name="UBI", serial="002700333338511934383330"
Found DFU: [0483:5720] ver=9999, devnum=96, cfg=1,\
 intf=0, alt=2, name="u-boot-env", serial="002700333338511934383330"
Found DFU: [0483:5720] ver=9999, devnum=96, cfg=1,\
 intf=0, alt=1, name="u-boot", serial="002700333338511934383330"
Found DFU: [0483:5720] ver=9999, devnum=96, cfg=1,\
 intf=0, alt=0, name="spl", serial="002700333338511934383330"

Signed-off-by: Patrick Delaunay

dfu: prepare the support of multiple interface

2019-10-31T11:12:31+00:00

Split the function dfu_config_entities with 2 new functions
- dfu_alt_init
- dfu_alt_add

Signed-off-by: Patrick Delaunay

dfu: sf: add partition support for nor backend

2019-10-31T11:12:31+00:00

Copy the partition support from NAND backend to SF,
support part and partubi option.
In case of ubi partition, erase the rest of the
partition as it is mandatory for UBI.

The added code is under compilation flag CONFIG_DFU_SF_PART
activated by default.

for example:

U-Boot> env set dfu_alt_info "spl part 0 1;\
u-boot part 0 2;u-boot-env part 0 3;UBI partubi 0 4"
U-Boot> dfu 0 sf 0:0:10000000:0

Signed-off-by: Patrick Delaunay