nuttx/arch
Austin.Chen 5197329b67 arch/arm/stm32h5: add SDMMC1/SDMMC2 driver
Add the STM32H5 SDMMC1/SDMMC2 lower-half SDIO driver (interrupt-mode and
IDMA transfers, SD/SDIO card mode), following the same structure as the
existing STM32H7 SDMMC driver.

Three fixes were needed to get this actually building, selectable, and
correct:

- The driver checked CONFIG_STM32H5_SDMMC1/CONFIG_STM32H5_SDMMC_IDMA/
  CONFIG_STM32H5_SDMMC_XFRDEBUG, but the real Kconfig symbols selected by
  this chip are the shared CONFIG_STM32_SDMMC1/CONFIG_STM32_SDMMC_IDMA/
  CONFIG_STM32_SDMMC_XFRDEBUG (see arch/arm/src/common/stm32/Kconfig.sdio,
  Kconfig.periph). With the old names the driver silently compiled out.
  Renamed all guards in stm32_sdmmc.c to match. Also fixed a similar typo,
  STM32H5_SRAM3_SIZE -> STM32_SRAM3_SIZE, in the IDMA-reach check.

- arch/arm/src/common/stm32/Kconfig.sdio's STM32_SDMMC_IDMA and the
  SDMMC1/2 SDIO-mode/pull-up options depended on ARCH_CHIP_STM32H7 /
  STM32_COMMON_F7_H7 only. Extended STM32_SDMMC_IDMA to also allow
  ARCH_CHIP_STM32H5, and switched the SDIO-mode/pull-up options to
  STM32_COMMON_F7_H7_H5, matching the pattern already used for other
  STM32H5 peripherals (Ethernet, ADC, SPI, timers).

- stm32_sdmmc.c was only added to Make.defs, not to CMakeLists.txt, so
  the driver would silently be omitted from CMake builds. Added it to
  the same unconditional source list as stm32_exti_gpio.c.

Also ports a fix from a related STM32H7 SDMMC commit
(2cb7b7c03e): stm32_recvdma()'s aligned
IDMA receive path invalidated the destination buffer before the DMA but
never again after it completed, so a speculative cache prefetch into
that buffer between those two points could shadow the freshly-received
data with a stale line. Added the missing post-DMA invalidate, matching
the pattern already used elsewhere on this chip for other DMA-capable
peripherals (e.g. stm32_ethernet.c's RX path).

Needed for a custom STM32H5 board that uses SDMMC1 in SDIO mode with
IDMA to talk to an onboard WiFi module.

Co-authored-by: Liam Howatt <liamhowatt@geotab.com>
Signed-off-by: Marwan Madkour <marwanmadkour@geotab.com>
2026-09-25 18:30:40 +08:00
..
arm arch/arm/stm32h5: add SDMMC1/SDMMC2 driver 2026-09-25 18:30:40 +08:00
arm64 arch/arm64/imx9: give the ELE a physical address and the cache a virtual one. 2026-09-24 10:36:52 -03:00
avr arch, boards, cmake: Build C++ ELF modules without __cxa_atexit. 2026-09-04 15:44:24 -03:00
ceva arch/atomic: remove up_testset in spinlock 2026-09-08 08:58:54 +08:00
dummy
hc tools: fix stale archive members surviving a Kconfig-driven CSRCS change 2026-07-28 21:26:03 -03:00
mips arch, boards, cmake: Build C++ ELF modules without __cxa_atexit. 2026-09-04 15:44:24 -03:00
misoc arch, boards, cmake: Build C++ ELF modules without __cxa_atexit. 2026-09-04 15:44:24 -03:00
or1k arch, boards, cmake: Build C++ ELF modules without __cxa_atexit. 2026-09-04 15:44:24 -03:00
renesas nuttx/libc: refine the atomic related Kconfig 2026-08-24 13:20:45 +08:00
risc-v sched/semaphore: Fix pre-existing nxstyle issues in the touched files 2026-09-25 10:37:43 +02:00
sim arch/sim: buffer several mouse reports 2026-09-25 10:36:28 +02:00
sparc arch/atomic: remove up_testset in spinlock 2026-09-08 08:58:54 +08:00
tricore arch/atomic: remove up_testset in spinlock 2026-09-08 08:58:54 +08:00
x86 arch/x86: Add -P to CPP to suppress linemarkers. 2026-09-17 16:21:59 +08:00
x86_64 arch/x86_64: Implement up_addrenv_fork() and provide POSIX fork(). 2026-09-24 18:02:36 -03:00
xtensa sched/semaphore: Fix pre-existing nxstyle issues in the touched files 2026-09-25 10:37:43 +02:00
z16 tools: fix stale archive members surviving a Kconfig-driven CSRCS change 2026-07-28 21:26:03 -03:00
z80
CMakeLists.txt cmake: Use NUTTX(_DIR/_BIN_DIR) instead CMAKE(_SRC_DIR/_BIN_DIR) 2026-08-09 11:13:08 -03:00
Kconfig arch/x86_64: Let the architecture select ARCH_HAVE_FORK. 2026-09-24 18:02:36 -03:00