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charset="utf-8" From: Peng Fan i.MX93 Device Unique ID(UID) is in eFuse that could be read through OCOTP Fuse Shadow Block. i.MX93 UID is 128 bits long, so introduce soc_uid_high to indicate the higher 64bits. The overall logic is similar as i.MX8M, so reuse soc-imx8m driver for i.MX93. Signed-off-by: Peng Fan --- V3: Update commit log Drop uneeded {} V2: The ocotp yaml has got R-b from DT maintainer drivers/soc/imx/Makefile | 2 +- drivers/soc/imx/soc-imx8m.c | 63 ++++++++++++++++++++++++++++++++++++- 2 files changed, 63 insertions(+), 2 deletions(-) diff --git a/drivers/soc/imx/Makefile b/drivers/soc/imx/Makefile index a28c44a1f16a..83aff181ae51 100644 --- a/drivers/soc/imx/Makefile +++ b/drivers/soc/imx/Makefile @@ -7,5 +7,5 @@ obj-$(CONFIG_IMX_GPCV2_PM_DOMAINS) +=3D gpcv2.o obj-$(CONFIG_SOC_IMX8M) +=3D soc-imx8m.o obj-$(CONFIG_IMX8M_BLK_CTRL) +=3D imx8m-blk-ctrl.o obj-$(CONFIG_IMX8M_BLK_CTRL) +=3D imx8mp-blk-ctrl.o -obj-$(CONFIG_SOC_IMX9) +=3D imx93-src.o imx93-pd.o +obj-$(CONFIG_SOC_IMX9) +=3D soc-imx8m.o imx93-src.o imx93-pd.o obj-$(CONFIG_IMX9_BLK_CTRL) +=3D imx93-blk-ctrl.o diff --git a/drivers/soc/imx/soc-imx8m.c b/drivers/soc/imx/soc-imx8m.c index 1dcd243df567..6723ac6c0f04 100644 --- a/drivers/soc/imx/soc-imx8m.c +++ b/drivers/soc/imx/soc-imx8m.c @@ -25,8 +25,11 @@ =20 #define IMX8MP_OCOTP_UID_OFFSET 0x10 =20 +#define IMX93_OCOTP_UID_OFFSET 0x80c0 + /* Same as ANADIG_DIGPROG_IMX7D */ #define ANADIG_DIGPROG_IMX8MM 0x800 +#define ANADIG_DIGPROG_IMX93 0x800 =20 struct imx8_soc_data { char *name; @@ -34,6 +37,7 @@ struct imx8_soc_data { }; =20 static u64 soc_uid; +static u64 soc_uid_h; =20 #ifdef CONFIG_HAVE_ARM_SMCCC static u32 imx8mq_soc_revision_from_atf(void) @@ -141,6 +145,53 @@ static u32 __init imx8mm_soc_revision(void) return rev; } =20 +static void __init imx93_soc_uid(void) +{ + void __iomem *ocotp_base; + struct device_node *np; + + np =3D of_find_compatible_node(NULL, NULL, "fsl,imx93-ocotp"); + if (!np) + return; + + ocotp_base =3D of_iomap(np, 0); + WARN_ON(!ocotp_base); + + soc_uid =3D readl_relaxed(ocotp_base + IMX93_OCOTP_UID_OFFSET + 0x8); + soc_uid <<=3D 32; + soc_uid |=3D readl_relaxed(ocotp_base + IMX93_OCOTP_UID_OFFSET + 0xC); + + soc_uid_h =3D readl_relaxed(ocotp_base + IMX93_OCOTP_UID_OFFSET + 0x0); + soc_uid_h <<=3D 32; + soc_uid_h |=3D readl_relaxed(ocotp_base + IMX93_OCOTP_UID_OFFSET + 0x4); + + iounmap(ocotp_base); + of_node_put(np); +} + +static u32 __init imx93_soc_revision(void) +{ + struct device_node *np; + void __iomem *anatop_base; + u32 rev; + + np =3D of_find_compatible_node(NULL, NULL, "fsl,imx93-anatop"); + if (!np) + return 0; + + anatop_base =3D of_iomap(np, 0); + WARN_ON(!anatop_base); + + rev =3D readl_relaxed(anatop_base + ANADIG_DIGPROG_IMX93); + + iounmap(anatop_base); + of_node_put(np); + + imx93_soc_uid(); + + return rev; +} + static const struct imx8_soc_data imx8mq_soc_data =3D { .name =3D "i.MX8MQ", .soc_revision =3D imx8mq_soc_revision, @@ -161,11 +212,17 @@ static const struct imx8_soc_data imx8mp_soc_data =3D= { .soc_revision =3D imx8mm_soc_revision, }; =20 +static const struct imx8_soc_data imx93_soc_data =3D { + .name =3D "i.MX93", + .soc_revision =3D imx93_soc_revision, +}; + static __maybe_unused const struct of_device_id imx8_soc_match[] =3D { { .compatible =3D "fsl,imx8mq", .data =3D &imx8mq_soc_data, }, { .compatible =3D "fsl,imx8mm", .data =3D &imx8mm_soc_data, }, { .compatible =3D "fsl,imx8mn", .data =3D &imx8mn_soc_data, }, { .compatible =3D "fsl,imx8mp", .data =3D &imx8mp_soc_data, }, + { .compatible =3D "fsl,imx93", .data =3D &imx93_soc_data, }, { } }; =20 @@ -212,7 +269,11 @@ static int __init imx8_soc_init(void) goto free_soc; } =20 - soc_dev_attr->serial_number =3D kasprintf(GFP_KERNEL, "%016llX", soc_uid); + if (soc_uid_h) + soc_dev_attr->serial_number =3D kasprintf(GFP_KERNEL, "%016llX%016llX", + soc_uid_h, soc_uid); + else + soc_dev_attr->serial_number =3D kasprintf(GFP_KERNEL, "%016llX", soc_uid= ); if (!soc_dev_attr->serial_number) { ret =3D -ENOMEM; goto free_rev; --=20 2.37.1