diff options
Diffstat (limited to 'drivers/spi/designware_spi.c')
| -rw-r--r-- | drivers/spi/designware_spi.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/spi/designware_spi.c b/drivers/spi/designware_spi.c index 5cca414486..02d93763d4 100644 --- a/drivers/spi/designware_spi.c +++ b/drivers/spi/designware_spi.c @@ -369,7 +369,13 @@ static int poll_transfer(struct dw_spi_priv *priv) return 0; } -static void external_cs_manage(struct udevice *dev, bool on) +/* + * We define external_cs_manage function as 'weak' as some targets + * (like MSCC Ocelot) don't control the external CS pin using a GPIO + * controller. These SoCs use specific registers to control by + * software the SPI pins (and especially the CS). + */ +__weak void external_cs_manage(struct udevice *dev, bool on) { #if defined(CONFIG_DM_GPIO) && !defined(CONFIG_SPL_BUILD) struct dw_spi_priv *priv = dev_get_priv(dev->parent); |