[PATCH] mtd: spi-nor: add dt support for Everspin MRAMs

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Mon Jan 16 05:35:03 PST 2017


The MR25 family doesn't support JEDEC, so they need explicit mentioning
in the list of supported spi IDs. This makes it possible to add these
using for example:

	compatible = "everspin,mr25h40";

Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
---
Hello,

independent of the decision if -nonjedec is ok for m25p, this is needed
to make Everspin's MRAMs work.

Best regards
Uwe

 drivers/mtd/devices/m25p80.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -305,6 +305,11 @@ static const struct spi_device_id m25p_ids[] = {
 	{"m25p40-nonjedec"},	{"m25p80-nonjedec"},	{"m25p16-nonjedec"},
 	{"m25p32-nonjedec"},	{"m25p64-nonjedec"},	{"m25p128-nonjedec"},
 
+	/* Everspin MRAMs without JEDEC support */
+	{ "mr25h256" }, /* 256 kib, 40 MHz */
+	{ "mr25h10" },  /*   1 Mib, 40 MHz */
+	{ "mr25h40" },  /*   4 Mib, 40 MHz */
+
 	{ },
 };
 MODULE_DEVICE_TABLE(spi, m25p_ids);
-- 
2.11.0




More information about the linux-mtd mailing list