u-boot.git/drivers/mtd/spi, branch v2020.01

mtd: spi-nor-core: Fix static checker warnings

2019-12-27T12:17:26Z

Static checker warns 'ret' variable may be used uninitialized in spi_nor_erase() and spi_nor_write() in case of zero length requests. Fix these warnings by checking for zero length requests and returning early. Reported-by: Dan Murphy Signed-off-by: Vignesh Raghavendra

mtd: spi-nor: ids: Add GigaDevice gd25q128

2019-12-18T14:35:40Z

Add gd25q128 128Mbit chip to spi-nor id table. Tested on Pinebook Pro Signed-off-by: Peter Robinson Acked-by: Vignesh Raghavendra Tested-by: Jagan Teki # roc-rk3399-pc Reviewed-by: Jagan Teki

mtd: spi: SPI_FLASH_MTD depends on MTD

2019-12-04T22:10:51Z

It is already the case that all defconfigs with SPI_FLASH_MTD also declare using MTD, but let's make this consistent and enforce it in Kconfig. Most of the time SPI_FLASH_MTD is used in conjunction with UBI, which already depends on MTD. Suggested-by: Vignesh R Signed-off-by: Miquel Raynal

common: Move ARM cache operations out of common.h

2019-12-02T23:24:58Z

These functions are CPU-related and do not use driver model. Move them to cpu_func.h Signed-off-by: Simon Glass Reviewed-by: Daniel Schwierzeck Reviewed-by: Tom Rini

spi-nor-ids: Add support for Adesto AT25SL321

2019-10-24T19:18:32Z

Add an entry for the Adesto AT25SL321 SPI NOR chip. This SPI NOR chip is found in the Embedded Artist i.MX7ULP COM board. Signed-off-by: Fabio Estevam Reviewed-by: Jagan Teki

mtd: spi: Clean up usage of CONFIG_SPI_FLASH_MTD

2019-10-24T19:18:32Z

Most boards currently use SPI_FLASH_MTD only in U-Boot proper, not in SPL. They often rely on hacks in the board header files to include this option conditionally. To be able to fix this, we previously introduced a separate option SPL_SPI_FLASH_MTD. Therefore we can now adjust the Makefile and change the code in sf_probe.c and sf_internal.h to use CONFIG_IS_ENABLED(SPI_FLASH_MTD). We also need to move all occurences of CONFIG_SPI_FLASH_MTD from the header files to the according defconfigs. The affected boards are socfpga, aristainetos, cm_fx6, display5, ventana, rcar-gen2, dh_imx6 and da850evm. We do this all in one patch to guarantee bisectibility. This change was tested with buildman to make sure it does not introduce any regressions by comparing the resulting binary sizes. Signed-off-by: Frieder Schrempf Reviewed-by: Stefan Roese Reviewed-by: Simon Goldschmidt Acked-by: Lukasz Majewski Reviewed-by: Heiko Schocher Reviewed-by: Jagan Teki

spi-nor: spi-nor-ids: Add USE_FSR flag for mt25q* and n25q* entry

2019-10-24T19:18:32Z

n25q* and mt25q* (both 256Mb and 512Mb) flashes support Flag status register that indicates various errors that may be encountered during erase/write operations. Therefore add USE_FSR flag wherever missing. Signed-off-by: Vignesh Raghavendra Reviewed-by: Tudor Ambarus Reviewed-by: Simon Goldschmidt Reviewed-by: Jagan Teki

spi-nor: spi-nor-ids: Add entries for mt25q variants

2019-10-24T19:18:32Z

mt25q* flashes support stateless 4 byte addressing opcodes. Add entries for the same. These flashes have bit 6 set in 5th byte of READ ID response when compared to n25q* variants. Signed-off-by: Vignesh Raghavendra Reviewed-by: Tudor Ambarus Tested-by: Simon Goldschmidt Reviewed-by: Jagan Teki

spi-nor: spi-nor-ids: Disable SPI_NOR_4B_OPCODES for n25q512* and n25q256*

2019-10-24T19:18:32Z

Per datasheets of n25q256* and n25q512* not all variants of n25q256* and n25q512* support 4 Byte stateless addressing opcodes. Therefore drop SPI_NOR_4B_OPCODES flag from these entries Signed-off-by: Vignesh Raghavendra Reviewed-by: Tudor Ambarus Reviewed-by: Simon Goldschmidt Tested-by: Simon Goldschmidt Tested-by: Eugeniy Paltsev Reviewed-by: Jagan Teki

mtd: spi-nor-core: Replace MTD_SPI_NOR_USE_4K_SECTORS with SPI_FLASH_USE_4K_SECTORS

2019-10-24T19:18:32Z

U-Boot uses CONFIG_SPI_FLASH_USE_4K_SECTORS to enable 4K small sector support. Use that instead of MTD_SPI_NOR_USE_4K_SECTORS. Reported-by: Eugeniy Paltsev Signed-off-by: Vignesh Raghavendra Reviewed-by: Jagan Teki