diff options
Diffstat (limited to 'drivers/mtd/spi-nor/core.c')
| -rw-r--r-- | drivers/mtd/spi-nor/core.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index 20ea80450f22..d3f8a78efd3b 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -2459,6 +2459,16 @@ spi_nor_spimem_adjust_hwcaps(struct spi_nor *nor, u32 *hwcaps) ¶ms->page_programs[ppidx])) *hwcaps &= ~BIT(cap); } + + /* Some SPI controllers might not support CR read opcode. */ + if (!(nor->flags & SNOR_F_NO_READ_CR)) { + struct spi_mem_op op = SPI_NOR_RDCR_OP(nor->bouncebuf); + + spi_nor_spimem_setup_op(nor, &op, nor->reg_proto); + + if (spi_nor_spimem_check_op(nor, &op)) + nor->flags |= SNOR_F_NO_READ_CR; + } } /** |