From: Ashok Reddy Soma ashok.reddy.soma@amd.com

Enable mt35xu512aba_fixups for all mt35 series flashes to work in DTR mode, and return after nor->fixups is updated, otherwise it will get overwritten with macronix_octal_fixups. This flash works in DTR mode only if CONFIG_SPI_FLASH_MT35XU is enabled and SPI_NOR_OCTAL_DTR_READ flag is set in id table.

Additionally, a new flag, "SPI_XFER_SET_DDR," has been introduced to instruct the Ospi controller driver to switch to DDR mode.

Signed-off-by: Ashok Reddy Soma ashok.reddy.soma@amd.com Signed-off-by: Tejas Bhumkar tejas.arvind.bhumkar@amd.com --- drivers/mtd/spi/spi-nor-core.c | 8 +++++++- include/spi.h | 1 + 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c index 8949dab548..e505648e5d 100644 --- a/drivers/mtd/spi/spi-nor-core.c +++ b/drivers/mtd/spi/spi-nor-core.c @@ -3991,6 +3991,7 @@ static int spi_nor_micron_octal_dtr_enable(struct spi_nor *nor) if (ret) return ret;

+ nor->spi->flags |= SPI_XFER_SET_DDR; buf = SPINOR_MT_OCT_DTR; op = (struct spi_mem_op) SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_MT_WR_ANY_REG, 1), @@ -4305,8 +4306,13 @@ void spi_nor_set_fixups(struct spi_nor *nor) #endif

#ifdef CONFIG_SPI_FLASH_MT35XU - if (!strcmp(nor->info->name, "mt35xu512aba")) + if (!strcmp(nor->info->name, "mt35xu512aba") || + !strcmp(nor->info->name, "mt35xl512aba") || + !strcmp(nor->info->name, "mt35xu01g") || + !strcmp(nor->info->name, "mt35xu02g")) { nor->fixups = &mt35xu512aba_fixups; + return; + } #endif

#if CONFIG_IS_ENABLED(SPI_FLASH_MACRONIX) diff --git a/include/spi.h b/include/spi.h index 6bc8808bb9..eb015ecbf5 100644 --- a/include/spi.h +++ b/include/spi.h @@ -171,6 +171,7 @@ struct spi_slave { #define SPI_XFER_ONCE (SPI_XFER_BEGIN | SPI_XFER_END) #define SPI_XFER_U_PAGE BIT(4) #define SPI_XFER_STACKED BIT(5) +#define SPI_XFER_SET_DDR BIT(6) /* * Flag indicating that the spi-controller has multi chip select * capability and can assert/de-assert more than one chip select