[PATCH] x86: spi: Only use the fast SPI peripheral when support

Simon Glass sjg at chromium.org
Tue Mar 24 14:45:27 CET 2020

At present we query the memory map on boards which don't support it. Fix
this by only doing it on Apollo Lake.

This fixes booting on chromebook_link.

Signed-off-by: Simon Glass <sjg at chromium.org>
Fixes: 92842147c31 ("spi: ich: Add support for get_mmap() method")

 drivers/spi/ich.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/spi/ich.c b/drivers/spi/ich.c
index a9d7715a55..9f8af45242 100644
--- a/drivers/spi/ich.c
+++ b/drivers/spi/ich.c
@@ -637,7 +637,10 @@ static int ich_get_mmap(struct udevice *dev, ulong *map_basep, uint *map_sizep,
 			uint *offsetp)
 	struct udevice *bus = dev_get_parent(dev);
+	struct ich_spi_platdata *plat = dev_get_platdata(bus);
+	if (plat->ich_version != ICHV_APL)
+		return -ENOENT;
 	return ich_get_mmap_bus(bus, map_basep, map_sizep, offsetp);

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