Some SD card connectors do not have separate card detection pin. In that
case card detection has to be done on CD/DAT3 data line. This means
software (i.e. architecture level driver) has to take care of pin
configuration switching (pin has to be set as data pin in case of
transfer and as interrupt card detection pin when there is no action
on data line).
This commit adds CD/DAT3 line card detection support for SAMv7 MCU.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
When I try to set priorities in certain programs, such as init_priority(HIGH_PRIORITY), I've noticed that during linking, there's no guarantee that the programs will be compiled in the sequence I've specified based on priority. This has led to some runtime errors in my program.
I realized that in the ld file, when initializing dynamic arrays, there's no assurance of initializing init_array.* before init_array. This has resulted in runtime errors in the program. Consequently, I've rearranged the init_array.* in the ld file of NuttX to be placed before init_array and added a SORT operation to init_array.* to ensure accurate initialization based on priorities during linking.
replace *(.init_array .init_array.*) with KEEP(*(.init_array .init_array.*)).
The KEEP statement within a linker script will instruct the linker to keep the specified section, even if no symbols inside it are referenced. This statement is used within the SECTIONS section of the linker script. This becomes relevant when garbage collection is performed at link time, enabled by passing the --gc-sections switch to the linker. The KEEP statement instructs the linker to use the specified section as a root node when creating a dependency graph, looking for unused sections. Essentially forcing the section to be marked as used.
Signed-off-by: cuiziwei <cuiziwei@xiaomi.com>
SAMv7 encoder driver with GPIO pins was written without IOCTL support.
While this driver does not require any lower level IOCTLs for its
functionality the upper layer fails on assertion when unknown command
can not be send to lower layer. This commit adds IOCTL handler that
always returns -ENOTTY as no commands are supported.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
Board related code may use different mounts for MTD device (block
character for one, SmartFS for another) if required by the board.
Additional type member was therefore added to mtd_partition_s structure
in order to support this.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
The original code hard-coded card detection to the low when card is
inserted and high when not. This might not be true on every board
because it depends on the slot and wiring used. The second reason is
because it is also possible to detect card with D3 pin pull-up when the
slot does not provide dedicated card detection switch.
This introduces new argument to the sam_hsmci_initialize to allow
invert of card detection pin. It also applies this invert to existing
boards as that was the state up to this point.
This commit adds support for GPIO driver based encoder for SAMv7 boards.
This encoder do not use the microcontroller's dedicated driver but two
GPIO pins with interrupts. The position is calculated based on those
interrupts.
This can be used for boards that do not have pins routed to the dedicated
driver.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
## Summary
A lot of linker scripts were listed twice, once for unix, once for windows.
This PR cleans up the logic so they're only listed once.
## Impact
Any opportunity to use a single source of truth and reduce lines of code is a win!
## Testing
CI will test all build
Move MCUboot bootloader implementation to samv7 common folder. This drop
all duplicated code and unify implementation.
Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
This introduce common folder structre and rework scripts & tools
files. The linker scripts were reorganized to use best the current
infrastructure which uses a template to create a final samv7.ld
file based in the current SoC memories and bootloader definitions.
Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
