[RFC PATCH 0/5] Implement exiting 4-byte adressing mode before reset
Robert Marko
robert.marko at sartura.hr
Tue May 7 12:03:48 CEST 2024
This fixes the issue with 4-byte adressing mode being left enabled on
board reset.
That is an issue on Qualcomm IPQ4019 boards since the CPU expects flash
to be in 3-byte adressing mode and will just hang otherwise.
Note that this does not fix a case where you remove the power while U-Boot
is still running and in that case it will still be stuck in 4-byte mode.
Robert Marko (5):
dm: core: add on_reset method
dm: core: introduce uclass_id_on_reset()
mtd: spi-nor: rename and export 4-byte adressing mode function
mtd: spi: sf: implement .on_reset method
sysreset: call .on_reset for UCLASS_SPI_FLASH before reset request
drivers/core/uclass.c | 13 +++++++++++++
drivers/mtd/spi/sf_probe.c | 10 ++++++++++
drivers/mtd/spi/spi-nor-core.c | 7 +++----
drivers/sysreset/sysreset-uclass.c | 7 +++++++
include/dm/device.h | 2 ++
include/dm/uclass.h | 8 ++++++++
include/linux/mtd/spi-nor.h | 10 ++++++++++
7 files changed, 53 insertions(+), 4 deletions(-)
--
2.45.0
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