leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

spi: bcm-qspi: MSPI_SPCR0_MSB MSTR bit exists only on legacy controllers

Browse Source 
Set MASTER bit on the MSPI_SPCR0_MSB only for legacy MSPI and HIF_MSPI
controllers.

Fixes: fa236a7ef2 ("spi: bcm-qspi: Add Broadcom MSPI driver")
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Link: https://lore.kernel.org/r/20200420190853.45614-10-kdasu.kdev@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kamal Dasu 2020-04-20 15:08:53 -04:00 committed by Mark Brown
parent ab2b493d17
commit 2f5f5302c5
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/spi/spi-bcm-qspi.c
View File

@ -576,11 +576,17 @@ static void bcm_qspi_hw_set_parms(struct bcm_qspi *qspi,
spcr = clamp_val(spbr, bcm_qspi_spbr_min(qspi), QSPI_SPBR_MAX);
bcm_qspi_write(qspi, MSPI, MSPI_SPCR0_LSB, spcr);
if (!qspi->mspi_maj_rev)
/* legacy controller */
spcr = MSPI_MASTER_BIT;
else
spcr = 0;
/* for 16 bit the data should be zero */
if (xp->bits_per_word != 16)
spcr |= xp->bits_per_word << 2;
spcr |= xp->mode & 3;
bcm_qspi_write(qspi, MSPI, MSPI_SPCR0_MSB, spcr);
if (bcm_qspi_has_fastbr(qspi)) {