Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""

When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.

This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>

arm: stm32/stm32mp: Remove <common.h> and add needed includes

Remove <common.h> from all mach-stm32 and mach-stm32mp files and when
needed add missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>

common: Drop linux/printk.h from common header

This old patch was marked as deferred. Bring it back to life, to continue
towards the removal of common.h

Move this out of the common header and include it only where needed.

Signed-off-by: Simon Glass <sjg@chromium.org>

stm32mp: stm32prog: solve warning for 64bits compilation

Solve many compilation warning when stm32prog is activated on the aarch64.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: change default flashlayout location to CONFIG_SYS_LOAD_ADDR

Change the defaut flashlayout location, hardcoded at STM32_DDR_BASE,
to CONFIG_SYS_LOAD_ADDR to avoid issue on board with reserved memory
at STM32_DDR_BASE.

This patch changes the command behavior for STM32MP13 and STM32MP15
platform, as CONFIG_SYS_LOAD_ADDR(0xc2000000) != STM32_DDR_BASE
but without impact for serial boot with STM32CubeProgrammer.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

cyclic: Use schedule() instead of WATCHDOG_RESET()

Globally replace all occurances of WATCHDOG_RESET() with schedule(),
which handles the HW_WATCHDOG functionality and the cyclic
infrastructure.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Tom Rini <trini@konsulko.com> [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]

doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

stm32mp: stm32prog: use get_cpu_dev for GetID command

Use get_cpu_dev() in uart getID command and remove the defines
DEVICE_ID_BYTE1 and 2 defines.

This patch prepare the support for new SOC family.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: add timeout in stm32prog_serial_get_buffer

Handle timeout in stm32prog_serial_get_buffer to sent NACK
to STM32CubeProgrammer when the buffer is not fully received.

This patch avoids to reach the STM32CubeProgrammer timeout and
the associated unrecoverable error.

Timeout error occurred while waiting for acknowledgment.

Error: Write Operation fails at packet number 4165 at address 0x1044FF

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: remove all the header check for UART download

This patch removes the header check for UART download;
the check of checksum is not mandatory with even parity and chuck
checksum for each 256 received bytes and it is only done for
STM32 image (FSBL = TF-A BL2), not for FIT image.

This patch solve issue of duplicated 0x100 byte written with FIP header.

Fixes: 4fb7b3e10891 ("stm32mp: stm32prog: add FIP header support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: add FIP header support

Add support of TF-A FIP header in command stm32prog for all the boot
partition and not only the STM32IMAGE.

This patch is a preliminary patch to support FIP as second boot stage
after TF-A BL2 when CONFIG_TFABOOT is activated for trusted boot chain.

The FIP is archive binary loaded by TF-A BL2, which contains the secure OS
= OP-TEE and the non secure firmware and device tree = U-Boot.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: replace alias by serial device sequence number

The command "stm32prog serial <dev>" can directly use the device sequence
number of serial uclass as this sequence number is egual to alias when it
exist; this assumption simplify the code and avoid access to gd->fdt_blob
and the device tree parsing.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

common: Drop asm/global_data.h from common header

Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

arm: stm32mp: stm32prog: always flush DFU on start command for uart

Remove the test on data->dfu_seq, because dfu_seq=0 not only when
the DFU is not started (mask with 0xffff). This flush is mandatory
as the final treatment, common with USB, is done in DFU callback.

This patch avoids issue if the received length is a multiple of
the DFU packet.

For example if size of bootfs partition is egual to 0x4000000,
data->dfu_seq=0 at the end of the partition, the flush it not
requested and the phase is not increased in the callback.
U-Boot continue to request the bootfs in the next GetPhase command.

Fixes: 468f0508b58b ("stm32mp: stm32prog: add serial link support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

arm: stm32mp: migrate cmd_stm32prog to log macro

Change debug and pr_ macro to log macro.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

sf: Drop dm.h header file from spi_flash.h

This header file should not be included in other header files. Remove it
and use a forward declaration instead.

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/delay.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

stm32mp: stm32prog: add serial link support

Add a support of UART, using the same protocol than MCU STM32.

See "AN5275: USB DFU/USART protocols used in STM32MP1 Series
bootloaders" for details.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

arm: stm32/stm32mp: Remove <common.h> and add needed includes

Remove <common.h> from all mach-stm32 and mach-stm32mp files and when
needed add missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>

common: Drop linux/printk.h from common header

This old patch was marked as deferred. Bring it back to life, to continue
towards the removal of common.h

Move this out of the common header and include it only where needed.

Signed-off-by: Simon Glass <sjg@chromium.org>

stm32mp: stm32prog: solve warning for 64bits compilation

Solve many compilation warning when stm32prog is activated on the aarch64.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: change default flashlayout location to CONFIG_SYS_LOAD_ADDR

Change the defaut flashlayout location, hardcoded at STM32_DDR_BASE,
to CONFIG_SYS_LOAD_ADDR to avoid issue on board with reserved memory
at STM32_DDR_BASE.

This patch changes the command behavior for STM32MP13 and STM32MP15
platform, as CONFIG_SYS_LOAD_ADDR(0xc2000000) != STM32_DDR_BASE
but without impact for serial boot with STM32CubeProgrammer.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

cyclic: Use schedule() instead of WATCHDOG_RESET()

Globally replace all occurances of WATCHDOG_RESET() with schedule(),
which handles the HW_WATCHDOG functionality and the cyclic
infrastructure.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Tom Rini <trini@konsulko.com> [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]

doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

stm32mp: stm32prog: use get_cpu_dev for GetID command

Use get_cpu_dev() in uart getID command and remove the defines
DEVICE_ID_BYTE1 and 2 defines.

This patch prepare the support for new SOC family.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: add timeout in stm32prog_serial_get_buffer

Handle timeout in stm32prog_serial_get_buffer to sent NACK
to STM32CubeProgrammer when the buffer is not fully received.

This patch avoids to reach the STM32CubeProgrammer timeout and
the associated unrecoverable error.

Timeout error occurred while waiting for acknowledgment.

Error: Write Operation fails at packet number 4165 at address 0x1044FF

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: remove all the header check for UART download

This patch removes the header check for UART download;
the check of checksum is not mandatory with even parity and chuck
checksum for each 256 received bytes and it is only done for
STM32 image (FSBL = TF-A BL2), not for FIT image.

This patch solve issue of duplicated 0x100 byte written with FIP header.

Fixes: 4fb7b3e10891 ("stm32mp: stm32prog: add FIP header support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: add FIP header support

Add support of TF-A FIP header in command stm32prog for all the boot
partition and not only the STM32IMAGE.

This patch is a preliminary patch to support FIP as second boot stage
after TF-A BL2 when CONFIG_TFABOOT is activated for trusted boot chain.

The FIP is archive binary loaded by TF-A BL2, which contains the secure OS
= OP-TEE and the non secure firmware and device tree = U-Boot.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: replace alias by serial device sequence number

The command "stm32prog serial <dev>" can directly use the device sequence
number of serial uclass as this sequence number is egual to alias when it
exist; this assumption simplify the code and avoid access to gd->fdt_blob
and the device tree parsing.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

common: Drop asm/global_data.h from common header

Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

arm: stm32mp: stm32prog: always flush DFU on start command for uart

Remove the test on data->dfu_seq, because dfu_seq=0 not only when
the DFU is not started (mask with 0xffff). This flush is mandatory
as the final treatment, common with USB, is done in DFU callback.

This patch avoids issue if the received length is a multiple of
the DFU packet.

For example if size of bootfs partition is egual to 0x4000000,
data->dfu_seq=0 at the end of the partition, the flush it not
requested and the phase is not increased in the callback.
U-Boot continue to request the bootfs in the next GetPhase command.

Fixes: 468f0508b58b ("stm32mp: stm32prog: add serial link support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

arm: stm32mp: migrate cmd_stm32prog to log macro

Change debug and pr_ macro to log macro.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

sf: Drop dm.h header file from spi_flash.h

This header file should not be included in other header files. Remove it
and use a forward declaration instead.

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/delay.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

stm32mp: stm32prog: add serial link support

Add a support of UART, using the same protocol than MCU STM32.

See "AN5275: USB DFU/USART protocols used in STM32MP1 Series
bootloaders" for details.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

common: Drop linux/printk.h from common header

This old patch was marked as deferred. Bring it back to life, to continue
towards the removal of common.h

Move this out of the common header and include it only where needed.

Signed-off-by: Simon Glass <sjg@chromium.org>

stm32mp: stm32prog: solve warning for 64bits compilation

Solve many compilation warning when stm32prog is activated on the aarch64.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: change default flashlayout location to CONFIG_SYS_LOAD_ADDR

Change the defaut flashlayout location, hardcoded at STM32_DDR_BASE,
to CONFIG_SYS_LOAD_ADDR to avoid issue on board with reserved memory
at STM32_DDR_BASE.

This patch changes the command behavior for STM32MP13 and STM32MP15
platform, as CONFIG_SYS_LOAD_ADDR(0xc2000000) != STM32_DDR_BASE
but without impact for serial boot with STM32CubeProgrammer.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

cyclic: Use schedule() instead of WATCHDOG_RESET()

Globally replace all occurances of WATCHDOG_RESET() with schedule(),
which handles the HW_WATCHDOG functionality and the cyclic
infrastructure.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Tom Rini <trini@konsulko.com> [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]

doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

stm32mp: stm32prog: use get_cpu_dev for GetID command

Use get_cpu_dev() in uart getID command and remove the defines
DEVICE_ID_BYTE1 and 2 defines.

This patch prepare the support for new SOC family.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: add timeout in stm32prog_serial_get_buffer

Handle timeout in stm32prog_serial_get_buffer to sent NACK
to STM32CubeProgrammer when the buffer is not fully received.

This patch avoids to reach the STM32CubeProgrammer timeout and
the associated unrecoverable error.

Timeout error occurred while waiting for acknowledgment.

Error: Write Operation fails at packet number 4165 at address 0x1044FF

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: remove all the header check for UART download

This patch removes the header check for UART download;
the check of checksum is not mandatory with even parity and chuck
checksum for each 256 received bytes and it is only done for
STM32 image (FSBL = TF-A BL2), not for FIT image.

This patch solve issue of duplicated 0x100 byte written with FIP header.

Fixes: 4fb7b3e10891 ("stm32mp: stm32prog: add FIP header support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: add FIP header support

Add support of TF-A FIP header in command stm32prog for all the boot
partition and not only the STM32IMAGE.

This patch is a preliminary patch to support FIP as second boot stage
after TF-A BL2 when CONFIG_TFABOOT is activated for trusted boot chain.

The FIP is archive binary loaded by TF-A BL2, which contains the secure OS
= OP-TEE and the non secure firmware and device tree = U-Boot.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: replace alias by serial device sequence number

The command "stm32prog serial <dev>" can directly use the device sequence
number of serial uclass as this sequence number is egual to alias when it
exist; this assumption simplify the code and avoid access to gd->fdt_blob
and the device tree parsing.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

common: Drop asm/global_data.h from common header

Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

arm: stm32mp: stm32prog: always flush DFU on start command for uart

Remove the test on data->dfu_seq, because dfu_seq=0 not only when
the DFU is not started (mask with 0xffff). This flush is mandatory
as the final treatment, common with USB, is done in DFU callback.

This patch avoids issue if the received length is a multiple of
the DFU packet.

For example if size of bootfs partition is egual to 0x4000000,
data->dfu_seq=0 at the end of the partition, the flush it not
requested and the phase is not increased in the callback.
U-Boot continue to request the bootfs in the next GetPhase command.

Fixes: 468f0508b58b ("stm32mp: stm32prog: add serial link support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

arm: stm32mp: migrate cmd_stm32prog to log macro

Change debug and pr_ macro to log macro.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

sf: Drop dm.h header file from spi_flash.h

This header file should not be included in other header files. Remove it
and use a forward declaration instead.

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/delay.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

stm32mp: stm32prog: add serial link support

Add a support of UART, using the same protocol than MCU STM32.

See "AN5275: USB DFU/USART protocols used in STM32MP1 Series
bootloaders" for details.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

stm32mp: stm32prog: solve warning for 64bits compilation

Solve many compilation warning when stm32prog is activated on the aarch64.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: change default flashlayout location to CONFIG_SYS_LOAD_ADDR

Change the defaut flashlayout location, hardcoded at STM32_DDR_BASE,
to CONFIG_SYS_LOAD_ADDR to avoid issue on board with reserved memory
at STM32_DDR_BASE.

This patch changes the command behavior for STM32MP13 and STM32MP15
platform, as CONFIG_SYS_LOAD_ADDR(0xc2000000) != STM32_DDR_BASE
but without impact for serial boot with STM32CubeProgrammer.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

cyclic: Use schedule() instead of WATCHDOG_RESET()

Globally replace all occurances of WATCHDOG_RESET() with schedule(),
which handles the HW_WATCHDOG functionality and the cyclic
infrastructure.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Tom Rini <trini@konsulko.com> [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]

doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

stm32mp: stm32prog: use get_cpu_dev for GetID command

Use get_cpu_dev() in uart getID command and remove the defines
DEVICE_ID_BYTE1 and 2 defines.

This patch prepare the support for new SOC family.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: add timeout in stm32prog_serial_get_buffer

Handle timeout in stm32prog_serial_get_buffer to sent NACK
to STM32CubeProgrammer when the buffer is not fully received.

This patch avoids to reach the STM32CubeProgrammer timeout and
the associated unrecoverable error.

Timeout error occurred while waiting for acknowledgment.

Error: Write Operation fails at packet number 4165 at address 0x1044FF

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: remove all the header check for UART download

This patch removes the header check for UART download;
the check of checksum is not mandatory with even parity and chuck
checksum for each 256 received bytes and it is only done for
STM32 image (FSBL = TF-A BL2), not for FIT image.

This patch solve issue of duplicated 0x100 byte written with FIP header.

Fixes: 4fb7b3e10891 ("stm32mp: stm32prog: add FIP header support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: add FIP header support

Add support of TF-A FIP header in command stm32prog for all the boot
partition and not only the STM32IMAGE.

This patch is a preliminary patch to support FIP as second boot stage
after TF-A BL2 when CONFIG_TFABOOT is activated for trusted boot chain.

The FIP is archive binary loaded by TF-A BL2, which contains the secure OS
= OP-TEE and the non secure firmware and device tree = U-Boot.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: replace alias by serial device sequence number

The command "stm32prog serial <dev>" can directly use the device sequence
number of serial uclass as this sequence number is egual to alias when it
exist; this assumption simplify the code and avoid access to gd->fdt_blob
and the device tree parsing.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

common: Drop asm/global_data.h from common header

Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

arm: stm32mp: stm32prog: always flush DFU on start command for uart

Remove the test on data->dfu_seq, because dfu_seq=0 not only when
the DFU is not started (mask with 0xffff). This flush is mandatory
as the final treatment, common with USB, is done in DFU callback.

This patch avoids issue if the received length is a multiple of
the DFU packet.

For example if size of bootfs partition is egual to 0x4000000,
data->dfu_seq=0 at the end of the partition, the flush it not
requested and the phase is not increased in the callback.
U-Boot continue to request the bootfs in the next GetPhase command.

Fixes: 468f0508b58b ("stm32mp: stm32prog: add serial link support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

arm: stm32mp: migrate cmd_stm32prog to log macro

Change debug and pr_ macro to log macro.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

sf: Drop dm.h header file from spi_flash.h

This header file should not be included in other header files. Remove it
and use a forward declaration instead.

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/delay.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

stm32mp: stm32prog: add serial link support

Add a support of UART, using the same protocol than MCU STM32.

See "AN5275: USB DFU/USART protocols used in STM32MP1 Series
bootloaders" for details.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

stm32mp: stm32prog: use get_cpu_dev for GetID command

Use get_cpu_dev() in uart getID command and remove the defines
DEVICE_ID_BYTE1 and 2 defines.

This patch prepare the support for new SOC family.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: add timeout in stm32prog_serial_get_buffer

Handle timeout in stm32prog_serial_get_buffer to sent NACK
to STM32CubeProgrammer when the buffer is not fully received.

This patch avoids to reach the STM32CubeProgrammer timeout and
the associated unrecoverable error.

Timeout error occurred while waiting for acknowledgment.

Error: Write Operation fails at packet number 4165 at address 0x1044FF

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: remove all the header check for UART download

This patch removes the header check for UART download;
the check of checksum is not mandatory with even parity and chuck
checksum for each 256 received bytes and it is only done for
STM32 image (FSBL = TF-A BL2), not for FIT image.

This patch solve issue of duplicated 0x100 byte written with FIP header.

Fixes: 4fb7b3e10891 ("stm32mp: stm32prog: add FIP header support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: add FIP header support

Add support of TF-A FIP header in command stm32prog for all the boot
partition and not only the STM32IMAGE.

This patch is a preliminary patch to support FIP as second boot stage
after TF-A BL2 when CONFIG_TFABOOT is activated for trusted boot chain.

The FIP is archive binary loaded by TF-A BL2, which contains the secure OS
= OP-TEE and the non secure firmware and device tree = U-Boot.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: replace alias by serial device sequence number

The command "stm32prog serial <dev>" can directly use the device sequence
number of serial uclass as this sequence number is egual to alias when it
exist; this assumption simplify the code and avoid access to gd->fdt_blob
and the device tree parsing.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

common: Drop asm/global_data.h from common header

Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

arm: stm32mp: stm32prog: always flush DFU on start command for uart

Remove the test on data->dfu_seq, because dfu_seq=0 not only when
the DFU is not started (mask with 0xffff). This flush is mandatory
as the final treatment, common with USB, is done in DFU callback.

This patch avoids issue if the received length is a multiple of
the DFU packet.

For example if size of bootfs partition is egual to 0x4000000,
data->dfu_seq=0 at the end of the partition, the flush it not
requested and the phase is not increased in the callback.
U-Boot continue to request the bootfs in the next GetPhase command.

Fixes: 468f0508b58b ("stm32mp: stm32prog: add serial link support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

arm: stm32mp: migrate cmd_stm32prog to log macro

Change debug and pr_ macro to log macro.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

sf: Drop dm.h header file from spi_flash.h

This header file should not be included in other header files. Remove it
and use a forward declaration instead.

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/delay.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

stm32mp: stm32prog: add serial link support

Add a support of UART, using the same protocol than MCU STM32.

See "AN5275: USB DFU/USART protocols used in STM32MP1 Series
bootloaders" for details.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

stm32mp: stm32prog: use get_cpu_dev for GetID command

Use get_cpu_dev() in uart getID command and remove the defines
DEVICE_ID_BYTE1 and 2 defines.

This patch prepare the support for new SOC family.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: add timeout in stm32prog_serial_get_buffer

Handle timeout in stm32prog_serial_get_buffer to sent NACK
to STM32CubeProgrammer when the buffer is not fully received.

This patch avoids to reach the STM32CubeProgrammer timeout and
the associated unrecoverable error.

Timeout error occurred while waiting for acknowledgment.

Error: Write Operation fails at packet number 4165 at address 0x1044FF

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: remove all the header check for UART download

This patch removes the header check for UART download;
the check of checksum is not mandatory with even parity and chuck
checksum for each 256 received bytes and it is only done for
STM32 image (FSBL = TF-A BL2), not for FIT image.

This patch solve issue of duplicated 0x100 byte written with FIP header.

Fixes: 4fb7b3e10891 ("stm32mp: stm32prog: add FIP header support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: add FIP header support

Add support of TF-A FIP header in command stm32prog for all the boot
partition and not only the STM32IMAGE.

This patch is a preliminary patch to support FIP as second boot stage
after TF-A BL2 when CONFIG_TFABOOT is activated for trusted boot chain.

The FIP is archive binary loaded by TF-A BL2, which contains the secure OS
= OP-TEE and the non secure firmware and device tree = U-Boot.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: replace alias by serial device sequence number

The command "stm32prog serial <dev>" can directly use the device sequence
number of serial uclass as this sequence number is egual to alias when it
exist; this assumption simplify the code and avoid access to gd->fdt_blob
and the device tree parsing.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

common: Drop asm/global_data.h from common header

Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

arm: stm32mp: stm32prog: always flush DFU on start command for uart

Remove the test on data->dfu_seq, because dfu_seq=0 not only when
the DFU is not started (mask with 0xffff). This flush is mandatory
as the final treatment, common with USB, is done in DFU callback.

This patch avoids issue if the received length is a multiple of
the DFU packet.

For example if size of bootfs partition is egual to 0x4000000,
data->dfu_seq=0 at the end of the partition, the flush it not
requested and the phase is not increased in the callback.
U-Boot continue to request the bootfs in the next GetPhase command.

Fixes: 468f0508b58b ("stm32mp: stm32prog: add serial link support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

arm: stm32mp: migrate cmd_stm32prog to log macro

Change debug and pr_ macro to log macro.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

sf: Drop dm.h header file from spi_flash.h

This header file should not be included in other header files. Remove it
and use a forward declaration instead.

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/delay.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

stm32mp: stm32prog: add serial link support

Add a support of UART, using the same protocol than MCU STM32.

See "AN5275: USB DFU/USART protocols used in STM32MP1 Series
bootloaders" for details.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

stm32mp: stm32prog: add FIP header support

Add support of TF-A FIP header in command stm32prog for all the boot
partition and not only the STM32IMAGE.

This patch is a preliminary patch to support FIP as second boot stage
after TF-A BL2 when CONFIG_TFABOOT is activated for trusted boot chain.

The FIP is archive binary loaded by TF-A BL2, which contains the secure OS
= OP-TEE and the non secure firmware and device tree = U-Boot.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

stm32mp: stm32prog: replace alias by serial device sequence number

The command "stm32prog serial <dev>" can directly use the device sequence
number of serial uclass as this sequence number is egual to alias when it
exist; this assumption simplify the code and avoid access to gd->fdt_blob
and the device tree parsing.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

common: Drop asm/global_data.h from common header

Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

arm: stm32mp: stm32prog: always flush DFU on start command for uart

Remove the test on data->dfu_seq, because dfu_seq=0 not only when
the DFU is not started (mask with 0xffff). This flush is mandatory
as the final treatment, common with USB, is done in DFU callback.

This patch avoids issue if the received length is a multiple of
the DFU packet.

For example if size of bootfs partition is egual to 0x4000000,
data->dfu_seq=0 at the end of the partition, the flush it not
requested and the phase is not increased in the callback.
U-Boot continue to request the bootfs in the next GetPhase command.

Fixes: 468f0508b58b ("stm32mp: stm32prog: add serial link support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

arm: stm32mp: migrate cmd_stm32prog to log macro

Change debug and pr_ macro to log macro.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

sf: Drop dm.h header file from spi_flash.h

This header file should not be included in other header files. Remove it
and use a forward declaration instead.

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/delay.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

stm32mp: stm32prog: add serial link support

Add a support of UART, using the same protocol than MCU STM32.

See "AN5275: USB DFU/USART protocols used in STM32MP1 Series
bootloaders" for details.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

stm32mp: stm32prog: replace alias by serial device sequence number

The command "stm32prog serial <dev>" can directly use the device sequence
number of serial uclass as this sequence number is egual to alias when it
exist; this assumption simplify the code and avoid access to gd->fdt_blob
and the device tree parsing.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

common: Drop asm/global_data.h from common header

Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

arm: stm32mp: stm32prog: always flush DFU on start command for uart

Remove the test on data->dfu_seq, because dfu_seq=0 not only when
the DFU is not started (mask with 0xffff). This flush is mandatory
as the final treatment, common with USB, is done in DFU callback.

This patch avoids issue if the received length is a multiple of
the DFU packet.

For example if size of bootfs partition is egual to 0x4000000,
data->dfu_seq=0 at the end of the partition, the flush it not
requested and the phase is not increased in the callback.
U-Boot continue to request the bootfs in the next GetPhase command.

Fixes: 468f0508b58b ("stm32mp: stm32prog: add serial link support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

arm: stm32mp: migrate cmd_stm32prog to log macro

Change debug and pr_ macro to log macro.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

sf: Drop dm.h header file from spi_flash.h

This header file should not be included in other header files. Remove it
and use a forward declaration instead.

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/delay.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

stm32mp: stm32prog: add serial link support

Add a support of UART, using the same protocol than MCU STM32.

See "AN5275: USB DFU/USART protocols used in STM32MP1 Series
bootloaders" for details.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

common: Drop asm/global_data.h from common header

Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

arm: stm32mp: stm32prog: always flush DFU on start command for uart

Remove the test on data->dfu_seq, because dfu_seq=0 not only when
the DFU is not started (mask with 0xffff). This flush is mandatory
as the final treatment, common with USB, is done in DFU callback.

This patch avoids issue if the received length is a multiple of
the DFU packet.

For example if size of bootfs partition is egual to 0x4000000,
data->dfu_seq=0 at the end of the partition, the flush it not
requested and the phase is not increased in the callback.
U-Boot continue to request the bootfs in the next GetPhase command.

Fixes: 468f0508b58b ("stm32mp: stm32prog: add serial link support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

arm: stm32mp: migrate cmd_stm32prog to log macro

Change debug and pr_ macro to log macro.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

sf: Drop dm.h header file from spi_flash.h

This header file should not be included in other header files. Remove it
and use a forward declaration instead.

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/delay.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

stm32mp: stm32prog: add serial link support

Add a support of UART, using the same protocol than MCU STM32.

See "AN5275: USB DFU/USART protocols used in STM32MP1 Series
bootloaders" for details.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

arm: stm32mp: stm32prog: always flush DFU on start command for uart

Remove the test on data->dfu_seq, because dfu_seq=0 not only when
the DFU is not started (mask with 0xffff). This flush is mandatory
as the final treatment, common with USB, is done in DFU callback.

This patch avoids issue if the received length is a multiple of
the DFU packet.

For example if size of bootfs partition is egual to 0x4000000,
data->dfu_seq=0 at the end of the partition, the flush it not
requested and the phase is not increased in the callback.
U-Boot continue to request the bootfs in the next GetPhase command.

Fixes: 468f0508b58b ("stm32mp: stm32prog: add serial link support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

arm: stm32mp: migrate cmd_stm32prog to log macro

Change debug and pr_ macro to log macro.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

sf: Drop dm.h header file from spi_flash.h

This header file should not be included in other header files. Remove it
and use a forward declaration instead.

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/delay.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

stm32mp: stm32prog: add serial link support

Add a support of UART, using the same protocol than MCU STM32.

See "AN5275: USB DFU/USART protocols used in STM32MP1 Series
bootloaders" for details.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

sf: Drop dm.h header file from spi_flash.h

This header file should not be included in other header files. Remove it
and use a forward declaration instead.

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Drop linux/delay.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

stm32mp: stm32prog: add serial link support

Add a support of UART, using the same protocol than MCU STM32.

See "AN5275: USB DFU/USART protocols used in STM32MP1 Series
bootloaders" for details.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

common: Drop linux/delay.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

stm32mp: stm32prog: add serial link support

Add a support of UART, using the same protocol than MCU STM32.

See "AN5275: USB DFU/USART protocols used in STM32MP1 Series
bootloaders" for details.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

stm32mp: stm32prog: add serial link support

Add a support of UART, using the same protocol than MCU STM32.

See "AN5275: USB DFU/USART protocols used in STM32MP1 Series
bootloaders" for details.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>