diff options
| author | Peng Fan <peng.fan@nxp.com> | 2024-09-02 16:29:45 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-03 12:13:18 +0200 |
| commit | c3f9b7b4e5f9de319d00784577cda42036ff243a (patch) | |
| tree | ccc1ccc017dcd3b8f8a13bc5db67d60b31bd6e18 /drivers/nvmem | |
| parent | dt-bindings: nvmem: imx-ocotp: support i.MX95 (diff) | |
| download | linux-c3f9b7b4e5f9de319d00784577cda42036ff243a.tar.xz linux-c3f9b7b4e5f9de319d00784577cda42036ff243a.zip | |
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>
Diffstat (limited to 'drivers/nvmem')
| -rw-r--r-- | drivers/nvmem/imx-ocotp-ele.c | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/drivers/nvmem/imx-ocotp-ele.c b/drivers/nvmem/imx-ocotp-ele.c index cf920542f939..1ba494497698 100644 --- 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 }; @@ -93,7 +94,10 @@ static int imx_ocotp_reg_read(void *context, unsigned int offset, void *val, siz 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, bytes); @@ -155,8 +159,30 @@ static const struct ocotp_devtype_data imx93_ocotp_data = { }, }; +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); |