diff options
Diffstat (limited to 'drivers/mtd/spi-nor')
| -rw-r--r-- | drivers/mtd/spi-nor/micron-st.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-st.c index a96f74e0f568..3c9681a3f7a3 100644 --- a/drivers/mtd/spi-nor/micron-st.c +++ b/drivers/mtd/spi-nor/micron-st.c @@ -399,8 +399,16 @@ static int micron_st_nor_ready(struct spi_nor *nor) return sr_ready; ret = micron_st_nor_read_fsr(nor, nor->bouncebuf); - if (ret) - return ret; + if (ret) { + /* + * Some controllers, such as Intel SPI, do not support low + * level operations such as reading the flag status + * register. They only expose small amount of high level + * operations to the software. If this is the case we use + * only the status register value. + */ + return ret == -EOPNOTSUPP ? sr_ready : ret; + } if (nor->bouncebuf[0] & (FSR_E_ERR | FSR_P_ERR)) { if (nor->bouncebuf[0] & FSR_E_ERR) |