soc: renesas: Identify RZ/V2M SoC

Add support for identifying the RZ/V2M (R9A09G011) SoC.
Note that the SoC does not have a identification register.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
[biju: removed config changes ]
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20221116102140.852889-3-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/drivers/soc/renesas/renesas-soc.c b/drivers/soc/renesas/renesas-soc.c
index 621ceaa..468ebce 100644 (file)
--- a/drivers/soc/renesas/renesas-soc.c
+++ b/drivers/soc/renesas/renesas-soc.c
@@ -76,6 +76,10 @@ static const struct renesas_family fam_rzv2l __initconst __maybe_unused = {
        .name   = "RZ/V2L",
 };
 
+static const struct renesas_family fam_rzv2m __initconst __maybe_unused = {
+       .name   = "RZ/V2M",
+};
+
 static const struct renesas_family fam_shmobile __initconst __maybe_unused = {
        .name   = "SH-Mobile",
        .reg    = 0xe600101c,           /* CCCR (Common Chip Code Register) */
@@ -171,6 +175,10 @@ static const struct renesas_soc soc_rz_v2l __initconst __maybe_unused = {
        .id     = 0x8447447,
 };
 
+static const struct renesas_soc soc_rz_v2m __initconst __maybe_unused = {
+       .family = &fam_rzv2m,
+};
+
 static const struct renesas_soc soc_rcar_m1a __initconst __maybe_unused = {
        .family = &fam_rcar_gen1,
 };
@@ -380,6 +388,9 @@ static const struct of_device_id renesas_socs[] __initconst = {
 #if defined(CONFIG_ARCH_R9A07G054)
        { .compatible = "renesas,r9a07g054",    .data = &soc_rz_v2l },
 #endif
+#if defined(CONFIG_ARCH_R9A09G011)
+       { .compatible = "renesas,r9a09g011",    .data = &soc_rz_v2m },
+#endif
 #ifdef CONFIG_ARCH_SH73A0
        { .compatible = "renesas,sh73a0",       .data = &soc_shmobile_ag5 },
 #endif
@@ -405,6 +416,11 @@ static const struct renesas_id id_rzg2l __initconst = {
        .mask = 0xfffffff,
 };
 
+static const struct renesas_id id_rzv2m __initconst = {
+       .offset = 0x104,
+       .mask = 0xff,
+};
+
 static const struct renesas_id id_prr __initconst = {
        .offset = 0,
        .mask = 0xff00,
@@ -415,6 +431,7 @@ static const struct of_device_id renesas_ids[] __initconst = {
        { .compatible = "renesas,r9a07g043-sysc",       .data = &id_rzg2l },
        { .compatible = "renesas,r9a07g044-sysc",       .data = &id_rzg2l },
        { .compatible = "renesas,r9a07g054-sysc",       .data = &id_rzg2l },
+       { .compatible = "renesas,r9a09g011-sys",        .data = &id_rzv2m },
        { .compatible = "renesas,prr",                  .data = &id_prr },
        { /* sentinel */ }
 };
@@ -485,6 +502,11 @@ static int __init renesas_soc_init(void)
                        soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u",
                                                           eshi);
                        rev_prefix = "Rev ";
+               } else if (id == &id_rzv2m) {
+                       eshi = ((product >> 4) & 0x0f);
+                       eslo = product & 0xf;
+                       soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u.%u",
+                                                          eshi, eslo);
                }
 
                if (soc->id &&