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mtd: mchp48l640: add support for Fujitsu MB85RS128TY FRAM

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The Fujitsu FRAM chips use the same command set as Microchip EERAM.
The only differences are that the Fujitsu FRAM chips don't really have a
page size limit, nor do they automatically reset the WEL bit.

Signed-off-by: David Jander <david@protonic.nl>
Reviewed-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Jonas Rebmann <jre@pengutronix.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
This commit is contained in:
David Jander 2024-12-03 11:38:37 +01:00 • committed by Miquel Raynal
parent 5b68d4d2db
commit 02ba194fea
1 changed files with 14 additions and 0 deletions
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14
drivers/mtd/devices/mchp48l640.c
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@ -303,6 +303,12 @@ static const struct mchp48_caps mchp48l640_caps = {
.auto_disable_wel = true,
};
static const struct mchp48_caps mb85rs128ty_caps = {
.size = SZ_16K,
.page_size = 256,
.auto_disable_wel = false,
};
static int mchp48l640_probe(struct spi_device *spi)
{
struct mchp48l640_flash *flash;
@ -361,6 +367,10 @@ static const struct of_device_id mchp48l640_of_table[] = {
.compatible = "microchip,48l640",
.data = &mchp48l640_caps,
},
{
.compatible = "fujitsu,mb85rs128ty",
.data = &mb85rs128ty_caps,
},
{}
};
MODULE_DEVICE_TABLE(of, mchp48l640_of_table);
@ -370,6 +380,10 @@ static const struct spi_device_id mchp48l640_spi_ids[] = {
.name = "48l640",
.driver_data = (kernel_ulong_t)&mchp48l640_caps,
},
{
.name = "mb85rs128ty",
.driver_data = (kernel_ulong_t)&mb85rs128ty_caps,
},
{}
};
MODULE_DEVICE_TABLE(spi, mchp48l640_spi_ids);