diff options
Diffstat (limited to 'src/soc/intel/common/block/fast_spi/fast_spi.c')
| -rw-r--r-- | src/soc/intel/common/block/fast_spi/fast_spi.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/fast_spi/fast_spi.c b/src/soc/intel/common/block/fast_spi/fast_spi.c index f7ef68561f..078e0ae1f1 100644 --- a/src/soc/intel/common/block/fast_spi/fast_spi.c +++ b/src/soc/intel/common/block/fast_spi/fast_spi.c @@ -153,6 +153,23 @@ void fast_spi_lock_bar(void) } /* + * Set FAST_SPIBAR + DLOCK (0x0C) register bits to discrete lock the + * FAST_SPI Protected Range (PR) registers. + */ +void fast_spi_pr_dlock(void) +{ + void *spibar = fast_spi_get_bar(); + uint32_t dlock; + + dlock = read32(spibar + SPIBAR_DLOCK); + dlock |= (SPIBAR_DLOCK_PR0LOCKDN | SPIBAR_DLOCK_PR1LOCKDN + | SPIBAR_DLOCK_PR2LOCKDN | SPIBAR_DLOCK_PR3LOCKDN + | SPIBAR_DLOCK_PR4LOCKDN); + + write32(spibar + SPIBAR_DLOCK, dlock); +} + +/* * Set FAST_SPIBAR Soft Reset Data Register value. */ void fast_spi_set_strap_msg_data(uint32_t soft_reset_data) |