4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Daniel Schultz <d.schultz@xxxxxxxxx>
[ Upstream commit 14ba972842f9e84e6d3264bc0302101b8a792288 ]
All i.MX6 SoCs have an OCOTP Controller with 4kbit fuses. The i.MX6SL is
an exception and has only 2kbit fuses.
In the TRM for the i.MX6DQ (IMX6QDRM - Rev 2, 06/2014) the fuses size is
described in chapter 46.1.1 with:
"32-bit word restricted program and read to 4Kbits of eFuse OTP(512x8)."
In the TRM for the i.MX6SL (IMX6SLRM - Rev 2, 06/2015) the fuses size is
described in chapter 34.1.1 with:
"32-bit word restricted program and read to 2 kbit of eFuse OTP(128x8)."
Since the Freescale Linux kernel OCOTP driver works with a fuses size of
2 kbit for the i.MX6SL, it looks like the TRM is wrong and the formula
to calculate the correct fuses size has to be 256x8.
Signed-off-by: Daniel Schultz <d.schultz@xxxxxxxxx>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/nvmem/imx-ocotp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/nvmem/imx-ocotp.c
+++ b/drivers/nvmem/imx-ocotp.c
@@ -88,7 +88,7 @@ static struct nvmem_config imx_ocotp_nvm
static const struct of_device_id imx_ocotp_dt_ids[] = {
{ .compatible = "fsl,imx6q-ocotp", (void *)128 },
- { .compatible = "fsl,imx6sl-ocotp", (void *)32 },
+ { .compatible = "fsl,imx6sl-ocotp", (void *)64 },
{ .compatible = "fsl,imx6sx-ocotp", (void *)128 },
{ },
};