In order to use its serial peripheral SERCOMs SAMD socs require their
pins to be configured with pinmux. Currently pins are muxed only for the
boards' default serial interfaces. The pinmux code is written to throw
a compiler error if a user tries to use any sercom in a way it wasn't
pre-defined to be used.
This commit changes compiler errors to warnings so that user can provide
custom pinmuxing code in their app.
Fixes#23133
Signed-off-by: Kuba Sanak <contact@kuba.fyi>
move pinmux.h to drivers/pinmux.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Move SERCOM peripherals to use the raw defines generated from DTS
parsing. This adds aliases to the DTS so that the SERCOM number
can still be used for clocking and pinmux.
Signed-off-by: Derek Hageman <hageman@inthat.cloud>
These changes were obtained by running a script created by
Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following
specification:
1. Read the contents of all dts_fixup.h files in Zephyr
2. Check the left-hand side of the #define macros (i.e. the X in
#define X Y)
3. Check if that name is also the name of a Kconfig option
3.a If it is, then do nothing
3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it
has neither of these two prefixes
4. Replace the use of the changed #define in the code itself
(.c, .h, .ld)
Additionally, some tweaks had to be added to this script to catch some
of the macros used in the code in a parameterized form, e.g.:
- CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS
- CONFIG_UART_##idx##_TX_PIN
- I2C_SBCON_##_num##_BASE_ADDR
and to prevent adding DT_ prefix to the following symbols:
- FLASH_START
- FLASH_SIZE
- SRAM_START
- SRAM_SIZE
- _ROM_ADDR
- _ROM_SIZE
- _RAM_ADDR
- _RAM_SIZE
which are surprisingly also defined in some dts_fixup.h files.
Finally, some manual corrections had to be done as well:
- name##_IRQ -> DT_##name##_IRQ in uart_stm32.c
Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
The Feather M0 Basic Proto is an Atmel SAMD21 based development board
with USB, UART, SPI, LED and onboard lithium polymer battery charger.
Use of the Adafruit stock photo (adafruit_feather_m0_basic_proto.jpg)
for the board documentation was approved by Adafruit Industries.
Signed-off-by: Henrik Brix Andersen <henrik@brixandersen.dk>
