drivers: flash: qspi stm32 driver supporting requires_ulbpr

[FRASTM]

Add the support of the requires_ulbpr property when a Microchip quad-spi flash is mounted.
Set the CONFIG_USE_MICROCHIP_QSPI_FLASH_WITH_STM32=y flag to access the command

Fixes #68622

[FRASTM]

Not all the quad-spi have the SPI_NOR_CMD_ULBPR command: (for example it is not listed in the Micron MT25QL512 or Macronix MX25R6435)
--> Send the qspi_write_unprotect() command during the quad-spi flash init if CONFIG_USE_MICROCHIP_QSPI_FLASH_WITH_STM32=y

[FRASTM]

Tested (samples/drivers/spi_flash) on a stm32l496g_disco which has a Macronix MX25R6435 quad-NOR with CONFIG_USE_MICROCHIP_QSPI_FLASH_WITH_STM32=n (no Microchip available)
Setting CONFIG_USE_MICROCHIP_QSPI_FLASH_WITH_STM32=y for a non-Microchip quad-NOR will fail !

[tt0776]

@FRASTM what is the status on using this changes in 3.7 LTS, it looks like still waiting on something for using "USE_MICROCHIP_QSPI_FLASH_WITH_STM32"

[tt0776]

@FRASTM just feedback and question on warning

Do you have an idea on what is not done correct configured or possible fix in zephyr/drivers/flash/flash_stm32_qspi.c?

I have checked out main and used it to flash for microchip sst26vf032b with sample "samples/drivers/spi_flash"
For easier reproduction warning, I have attached overlay for "stm32l476g_disco" to be placed in sample "boards"
(Need rename to .conf and .overlay to use)
stm32l476g_disco_conf.txt
stm32l476g_disco_overlay.txt

my_board is derived from nucleo_l476rg

Specific enable and using.
CONFIG_USE_MICROCHIP_QSPI_FLASH_WITH_STM32=y
requires-ulbpr;

I get warning on this and not sure on how to fix it or it will be a problem.
Warning (spi_bus_bridge): /soc/quadspi@a0001000: node name for SPI buses
Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge'

relevant devicetree part for sst26vf032b

sst26vf032b: qspi-nor-flash@90000000 {
		// https://docs.zephyrproject.org/latest/build/dts/api/bindings/flash_controller/st,stm32-qspi-nor.html
		compatible = "st,stm32-qspi-nor";
		reg = <0x90000000 DT_SIZE_M(32)>; // 4 MBytes
		qspi-max-frequency = <DT_FREQ_M(80)>;
		status = "okay"; // Is only to be enable when actually using external flash.
		//NOT IN USE// reset-gpios = <&gpiod 3 GPIO_ACTIVE_LOW>;
        //NOT IN USE// reset-gpios-duration = <1>; // The duration (in ms) for the flash memory reset pulse
		spi-bus-width = <4>;
		requires-ulbpr;		
		page-size = <4096>; // Force “Erase 4 Kbytes” (0x20) to insure using smalles possible page size possible to support
		writeoc = "PP_1_1_4";

		partitions {
			compatible = "fixed-partitions";
			#address-cells = <1>;
			#size-cells = <1>;

			partition@0 {
				label = "nor";
				reg = <0x00000000 DT_SIZE_M(4)>;
			};
		};
	};
};

Full printout with some path substitutes

COMMAND: west build -p always /home/ ... /samples/drivers/spi_flash -d /home/ ... /build -b [email protected]  -- -DBOARD_ROOT=/home/ ... /pjt
-- west build: making build dir /home/ ... /build pristine
-- west build: generating a build system
Loading Zephyr default modules (Zephyr base).
-- Application: /home/ ... /samples/drivers/spi_flash
-- CMake version: 3.30.2
-- Found Python3: /home/ ... /zephyrproject/.venv/bin/python3 (found suitable version "3.12.3", minimum required is "3.10") found components: Interpreter
-- Cache files will be written to: /home/ ... /.cache/zephyr
-- Zephyr version: 3.7.99 (/home/ ... /zephyrproject/zephyr)
-- Found west (found suitable version "1.2.0", minimum required is "0.14.0")
-- Board: my_board, Revision: 3.0.1, qualifiers: stm32l476xx
-- ZEPHYR_TOOLCHAIN_VARIANT not set, trying to locate Zephyr SDK
-- Found host-tools: zephyr 0.16.8 (/home/ ... /zephyr-sdk-0.16.8)
-- Found toolchain: zephyr 0.16.8 (/home/ ... /zephyr-sdk-0.16.8)
-- Found Dtc: /home/ ... /zephyr-sdk-0.16.8/sysroots/x86_64-pokysdk-linux/usr/bin/dtc (found suitable version "1.6.0", minimum required is "1.4.6")

-- Including generated dts.cmake file: / ... /zephyr/dts.cmake
CMake Warning at /home/ ... /zephyrproject/zephyr/cmake/modules/dts.cmake:405 (message):
  dtc raised one or more warnings:


  /home/ ... / ... /zephyr/zephyr.dts:446.29-485.5:
  Warning (spi_bus_bridge): /soc/quadspi@a0001000: node name for SPI buses
  should be 'spi'

  <stdout>: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge'

Call Stack (most recent call first):
  /home/ ... /zephyrproject/zephyr/cmake/modules/zephyr_default.cmake:133 (include)
  /home/ ... /zephyrproject/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include)
  /home/ ... /zephyrproject/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate)
  CMakeLists.txt:4 (find_package)

...

'/home/ ... / ... /zephyr/include/generated/zephyr/autoconf.h'
-- Found GnuLd: /home/ ... /zephyr-sdk-0.16.8/arm-zephyr-eabi/arm-zephyr-eabi/bin/ld.bfd (found version "2.38")
-- The C compiler identification is GNU 12.2.0
-- The CXX compiler identification is GNU 12.2.0
-- The ASM compiler identification is GNU
-- Found assembler: /home/ ... /zephyr-sdk-0.16.8/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc
-- Setting build type to 'MinSizeRel' as none was specified.
-- Using ccache: /usr/bin/ccache
-- Configuring done (7.8s)
-- Generating done (0.3s)
-- Build files have been written to: /home/ ... /build
-- west build: building application
[1/165] Preparing syscall dependency handling

[3/165] Generating include/generated/zephyr/version.h
-- Zephyr version: 3.7.99 (/home/ ... /zephyrproject/zephyr), build: v3.7.0-3720-g9c0f92db475f
[165/165] Linking C executable zephyr/zephyr.elf
Memory region         Used Size  Region Size  %age Used
           FLASH:       42444 B         1 MB      4.05%
             RAM:        5888 B        96 KB      5.99%
        IDT_LIST:          0 GB        32 KB      0.00%