Signed-off-by: Bernhard Messerklinger bernhard.messerklinger@br-automation.com ---
drivers/spi/ich.c | 7 +++++++ drivers/spi/ich.h | 1 + 2 files changed, 8 insertions(+)
diff --git a/drivers/spi/ich.c b/drivers/spi/ich.c index d84bbdb2e5..4ec107d323 100644 --- a/drivers/spi/ich.c +++ b/drivers/spi/ich.c @@ -213,6 +213,10 @@ static int ich_init_controller(struct udevice *dev, return -EINVAL; }
+ /* Check devicetree for max frequency */ + if (plat->max_speed) + ctlr->max_speed = plat->max_speed; + debug("ICH SPI: Version ID %d detected at %p, speed %ld\n", plat->ich_version, ctlr->base, ctlr->max_speed);
@@ -784,6 +788,9 @@ static int ich_spi_ofdata_to_platdata(struct udevice *dev) plat->lockdown = fdtdec_get_bool(gd->fdt_blob, node, "intel,spi-lock-down");
+ plat->max_speed = fdtdec_get_uint(gd->fdt_blob, node, + "spi-max-frequency", 0); + return ret; }
diff --git a/drivers/spi/ich.h b/drivers/spi/ich.h index 5e3ac2d2c2..85ddc171cc 100644 --- a/drivers/spi/ich.h +++ b/drivers/spi/ich.h @@ -214,6 +214,7 @@ struct ich_spi_platdata { enum ich_version ich_version; /* Controller version*/ bool lockdown; /* lock down controller settings? */ unsigned long base; /* PCI device BAR */ + unsigned long max_speed; };
struct ich_spi_priv {