x86: spi: Set maximum write size for ICH
This SPI controller can only write 64 bytes at a time. Add this restriction
in so that 'sf write' works correct for blocks larger than 64 bytes.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/spi/ich.c b/drivers/spi/ich.c
index ef1ce1d..8865df5 100644
--- a/drivers/spi/ich.c
+++ b/drivers/spi/ich.c
@@ -147,6 +147,11 @@
return NULL;
}
+ /*
+ * Yes this controller can only write a small number of bytes at
+ * once! The limit is typically 64 bytes.
+ */
+ ich->slave.max_write_size = ctlr.databytes;
ich->speed = max_hz;
return &ich->slave;