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flash/nor: add DesignWare SPI controller driver

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Driver for DesignWare SPI controller, found on many SoCs (see compatible
list in Linux device tree bindings
Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml). This
implementation only supports MIPS as it was the only one available for the
tests, however, adding support for other architectures should require only
few adjustments. Driver relies on flash/nor/spi.h to find Flash chip info.
Driver internal functions support 24bit addressing mode, but due to
limitations of flash/nor/spi.h, it is not used. The reported writing speed
is about 60kb/s.
Lint, sanitizer and valgrind reported warnings were not related to the
driver.

Change-Id: Id3df5626ab88055f034f74f274823051dedefeb1
Signed-off-by: Sergey Matsievskiy <matsievskiysv@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/8400
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
This commit is contained in:
Sergey Matsievskiy
2024-09-18 20:12:48 +03:00
committed by Tomas Vanek
parent ce38758e3d
commit eb6f2745b7
14 changed files with 2560 additions and 0 deletions
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1
src/flash/nor/driver.h
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@@ -254,6 +254,7 @@ extern const struct flash_driver cc26xx_flash;
extern const struct flash_driver cc3220sf_flash;
extern const struct flash_driver cfi_flash;
extern const struct flash_driver dsp5680xx_flash;
extern const struct flash_driver dw_spi_flash;
extern const struct flash_driver efm32_flash;
extern const struct flash_driver em357_flash;
extern const struct flash_driver eneispif_flash;