forked from Openwrt-EcoNet/openwrt
456b7a5d48
This is an automatically generated commit which aids following Kernel patch history, as git will see the move and copy as a rename thus defeating the purpose. For the original discussion see: https://lists.openwrt.org/pipermail/openwrt-devel/2023-October/041673.html Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com> Link: https://github.com/openwrt/openwrt/pull/16547 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
74 lines
2.1 KiB
Diff
74 lines
2.1 KiB
Diff
From c3f9b7b4e5f9de319d00784577cda42036ff243a Mon Sep 17 00:00:00 2001
|
|
From: Peng Fan <peng.fan@nxp.com>
|
|
Date: Mon, 2 Sep 2024 15:29:45 +0100
|
|
Subject: [PATCH] nvmem: imx-ocotp-ele: support i.MX95
|
|
|
|
i.MX95 OCOTP has same accessing method, so add an entry for i.MX95, but
|
|
some fuse has ECC feature, so only read out the lower 16bits for ECC fuses.
|
|
|
|
Signed-off-by: Peng Fan <peng.fan@nxp.com>
|
|
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
|
|
Link: https://lore.kernel.org/r/20240902142952.71639-3-srinivas.kandagatla@linaro.org
|
|
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
---
|
|
drivers/nvmem/imx-ocotp-ele.c | 32 +++++++++++++++++++++++++++++---
|
|
1 file changed, 29 insertions(+), 3 deletions(-)
|
|
|
|
--- a/drivers/nvmem/imx-ocotp-ele.c
|
|
+++ b/drivers/nvmem/imx-ocotp-ele.c
|
|
@@ -14,8 +14,9 @@
|
|
#include <linux/slab.h>
|
|
|
|
enum fuse_type {
|
|
- FUSE_FSB = 1,
|
|
- FUSE_ELE = 2,
|
|
+ FUSE_FSB = BIT(0),
|
|
+ FUSE_ELE = BIT(1),
|
|
+ FUSE_ECC = BIT(2),
|
|
FUSE_INVALID = -1
|
|
};
|
|
|
|
@@ -95,7 +96,10 @@ static int imx_ocotp_reg_read(void *cont
|
|
continue;
|
|
}
|
|
|
|
- *buf++ = readl_relaxed(reg + (i << 2));
|
|
+ if (type & FUSE_ECC)
|
|
+ *buf++ = readl_relaxed(reg + (i << 2)) & GENMASK(15, 0);
|
|
+ else
|
|
+ *buf++ = readl_relaxed(reg + (i << 2));
|
|
}
|
|
|
|
memcpy(val, ((u8 *)p) + skipbytes, bytes);
|
|
@@ -179,8 +183,30 @@ static const struct ocotp_devtype_data i
|
|
},
|
|
};
|
|
|
|
+static const struct ocotp_devtype_data imx95_ocotp_data = {
|
|
+ .reg_off = 0x8000,
|
|
+ .reg_read = imx_ocotp_reg_read,
|
|
+ .size = 2048,
|
|
+ .num_entry = 12,
|
|
+ .entry = {
|
|
+ { 0, 1, FUSE_FSB | FUSE_ECC },
|
|
+ { 7, 1, FUSE_FSB | FUSE_ECC },
|
|
+ { 9, 3, FUSE_FSB | FUSE_ECC },
|
|
+ { 12, 24, FUSE_FSB },
|
|
+ { 36, 2, FUSE_FSB | FUSE_ECC },
|
|
+ { 38, 14, FUSE_FSB },
|
|
+ { 63, 1, FUSE_ELE },
|
|
+ { 128, 16, FUSE_ELE },
|
|
+ { 188, 1, FUSE_ELE },
|
|
+ { 317, 2, FUSE_FSB | FUSE_ECC },
|
|
+ { 320, 7, FUSE_FSB },
|
|
+ { 328, 184, FUSE_FSB }
|
|
+ },
|
|
+};
|
|
+
|
|
static const struct of_device_id imx_ele_ocotp_dt_ids[] = {
|
|
{ .compatible = "fsl,imx93-ocotp", .data = &imx93_ocotp_data, },
|
|
+ { .compatible = "fsl,imx95-ocotp", .data = &imx95_ocotp_data, },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, imx_ele_ocotp_dt_ids);
|