diff options
Diffstat (limited to 'drivers/soc/renesas/renesas-soc.c')
| -rw-r--r-- | drivers/soc/renesas/renesas-soc.c | 307 |
1 files changed, 242 insertions, 65 deletions
diff --git a/drivers/soc/renesas/renesas-soc.c b/drivers/soc/renesas/renesas-soc.c index 4af96e668a2f..ee4f17bb4db4 100644 --- a/drivers/soc/renesas/renesas-soc.c +++ b/drivers/soc/renesas/renesas-soc.c @@ -5,6 +5,7 @@ * Copyright (C) 2014-2016 Glider bvba */ +#include <linux/bitfield.h> #include <linux/io.h> #include <linux/of.h> #include <linux/of_address.h> @@ -12,7 +13,6 @@ #include <linux/string.h> #include <linux/sys_soc.h> - struct renesas_family { const char name[16]; u32 reg; /* CCCR or PRR, if not in DT */ @@ -33,6 +33,14 @@ static const struct renesas_family fam_rcar_gen3 __initconst __maybe_unused = { .reg = 0xfff00044, /* PRR (Product Register) */ }; +static const struct renesas_family fam_rcar_gen4 __initconst __maybe_unused = { + .name = "R-Car Gen4", +}; + +static const struct renesas_family fam_rcar_gen5 __initconst __maybe_unused = { + .name = "R-Car Gen5", +}; + static const struct renesas_family fam_rmobile __initconst __maybe_unused = { .name = "R-Mobile", .reg = 0xe600101c, /* CCCR (Common Chip Code Register) */ @@ -46,6 +54,10 @@ static const struct renesas_family fam_rza2 __initconst __maybe_unused = { .name = "RZ/A2", }; +static const struct renesas_family fam_rzfive __initconst __maybe_unused = { + .name = "RZ/Five", +}; + static const struct renesas_family fam_rzg1 __initconst __maybe_unused = { .name = "RZ/G1", .reg = 0xff000044, /* PRR (Product Register) */ @@ -56,15 +68,30 @@ static const struct renesas_family fam_rzg2 __initconst __maybe_unused = { .reg = 0xfff00044, /* PRR (Product Register) */ }; +static const struct renesas_family fam_rzg2l __initconst __maybe_unused = { + .name = "RZ/G2L", +}; + +static const struct renesas_family fam_rzg2ul __initconst __maybe_unused = { + .name = "RZ/G2UL", +}; + +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) */ }; - struct renesas_soc { const struct renesas_family *family; - u8 id; + u32 id; }; static const struct renesas_soc soc_rz_a1h __initconst __maybe_unused = { @@ -86,6 +113,11 @@ static const struct renesas_soc soc_rmobile_a1 __initconst __maybe_unused = { .id = 0x40, }; +static const struct renesas_soc soc_rz_five __initconst __maybe_unused = { + .family = &fam_rzfive, + .id = 0x847c447, +}; + static const struct renesas_soc soc_rz_g1h __initconst __maybe_unused = { .family = &fam_rzg1, .id = 0x45, @@ -116,11 +148,40 @@ static const struct renesas_soc soc_rz_g2m __initconst __maybe_unused = { .id = 0x52, }; +static const struct renesas_soc soc_rz_g2n __initconst __maybe_unused = { + .family = &fam_rzg2, + .id = 0x55, +}; + static const struct renesas_soc soc_rz_g2e __initconst __maybe_unused = { .family = &fam_rzg2, .id = 0x57, }; +static const struct renesas_soc soc_rz_g2h __initconst __maybe_unused = { + .family = &fam_rzg2, + .id = 0x4f, +}; + +static const struct renesas_soc soc_rz_g2l __initconst __maybe_unused = { + .family = &fam_rzg2l, + .id = 0x841c447, +}; + +static const struct renesas_soc soc_rz_g2ul __initconst __maybe_unused = { + .family = &fam_rzg2ul, + .id = 0x8450447, +}; + +static const struct renesas_soc soc_rz_v2l __initconst __maybe_unused = { + .family = &fam_rzv2l, + .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, }; @@ -190,13 +251,37 @@ static const struct renesas_soc soc_rcar_d3 __initconst __maybe_unused = { .id = 0x58, }; +static const struct renesas_soc soc_rcar_v3u __initconst __maybe_unused = { + .family = &fam_rcar_gen4, + .id = 0x59, +}; + +static const struct renesas_soc soc_rcar_s4 __initconst __maybe_unused = { + .family = &fam_rcar_gen4, + .id = 0x5a, +}; + +static const struct renesas_soc soc_rcar_v4h __initconst __maybe_unused = { + .family = &fam_rcar_gen4, + .id = 0x5c, +}; + +static const struct renesas_soc soc_rcar_v4m __initconst __maybe_unused = { + .family = &fam_rcar_gen4, + .id = 0x5d, +}; + +static const struct renesas_soc soc_rcar_x5h __initconst __maybe_unused = { + .family = &fam_rcar_gen5, + .id = 0x60, +}; + static const struct renesas_soc soc_shmobile_ag5 __initconst __maybe_unused = { .family = &fam_shmobile, .id = 0x37, }; - -static const struct of_device_id renesas_socs[] __initconst = { +static const struct of_device_id renesas_socs[] __initconst __maybe_unused = { #ifdef CONFIG_ARCH_R7S72100 { .compatible = "renesas,r7s72100", .data = &soc_rz_a1h }, #endif @@ -227,9 +312,15 @@ static const struct of_device_id renesas_socs[] __initconst = { #ifdef CONFIG_ARCH_R8A774A1 { .compatible = "renesas,r8a774a1", .data = &soc_rz_g2m }, #endif +#ifdef CONFIG_ARCH_R8A774B1 + { .compatible = "renesas,r8a774b1", .data = &soc_rz_g2n }, +#endif #ifdef CONFIG_ARCH_R8A774C0 { .compatible = "renesas,r8a774c0", .data = &soc_rz_g2e }, #endif +#ifdef CONFIG_ARCH_R8A774E1 + { .compatible = "renesas,r8a774e1", .data = &soc_rz_g2h }, +#endif #ifdef CONFIG_ARCH_R8A7778 { .compatible = "renesas,r8a7778", .data = &soc_rcar_m1a }, #endif @@ -251,14 +342,25 @@ static const struct of_device_id renesas_socs[] __initconst = { #ifdef CONFIG_ARCH_R8A7794 { .compatible = "renesas,r8a7794", .data = &soc_rcar_e2 }, #endif -#ifdef CONFIG_ARCH_R8A7795 +#ifdef CONFIG_ARCH_R8A77951 { .compatible = "renesas,r8a7795", .data = &soc_rcar_h3 }, + { .compatible = "renesas,r8a779m0", .data = &soc_rcar_h3 }, + { .compatible = "renesas,r8a779m1", .data = &soc_rcar_h3 }, + { .compatible = "renesas,r8a779m8", .data = &soc_rcar_h3 }, + { .compatible = "renesas,r8a779mb", .data = &soc_rcar_h3 }, #endif -#ifdef CONFIG_ARCH_R8A7796 +#ifdef CONFIG_ARCH_R8A77960 { .compatible = "renesas,r8a7796", .data = &soc_rcar_m3_w }, #endif +#ifdef CONFIG_ARCH_R8A77961 + { .compatible = "renesas,r8a77961", .data = &soc_rcar_m3_w }, + { .compatible = "renesas,r8a779m2", .data = &soc_rcar_m3_w }, + { .compatible = "renesas,r8a779m3", .data = &soc_rcar_m3_w }, +#endif #ifdef CONFIG_ARCH_R8A77965 { .compatible = "renesas,r8a77965", .data = &soc_rcar_m3_n }, + { .compatible = "renesas,r8a779m4", .data = &soc_rcar_m3_n }, + { .compatible = "renesas,r8a779m5", .data = &soc_rcar_m3_n }, #endif #ifdef CONFIG_ARCH_R8A77970 { .compatible = "renesas,r8a77970", .data = &soc_rcar_v3m }, @@ -268,9 +370,42 @@ static const struct of_device_id renesas_socs[] __initconst = { #endif #ifdef CONFIG_ARCH_R8A77990 { .compatible = "renesas,r8a77990", .data = &soc_rcar_e3 }, + { .compatible = "renesas,r8a779m6", .data = &soc_rcar_e3 }, #endif #ifdef CONFIG_ARCH_R8A77995 { .compatible = "renesas,r8a77995", .data = &soc_rcar_d3 }, + { .compatible = "renesas,r8a779m7", .data = &soc_rcar_d3 }, +#endif +#ifdef CONFIG_ARCH_R8A779A0 + { .compatible = "renesas,r8a779a0", .data = &soc_rcar_v3u }, +#endif +#ifdef CONFIG_ARCH_R8A779F0 + { .compatible = "renesas,r8a779f0", .data = &soc_rcar_s4 }, +#endif +#ifdef CONFIG_ARCH_R8A779G0 + { .compatible = "renesas,r8a779g0", .data = &soc_rcar_v4h }, +#endif +#ifdef CONFIG_ARCH_R8A779H0 + { .compatible = "renesas,r8a779h0", .data = &soc_rcar_v4m }, +#endif +#ifdef CONFIG_ARCH_R8A78000 + { .compatible = "renesas,r8a78000", .data = &soc_rcar_x5h }, +#endif +#ifdef CONFIG_ARCH_R9A07G043 +#ifdef CONFIG_RISCV + { .compatible = "renesas,r9a07g043", .data = &soc_rz_five }, +#else + { .compatible = "renesas,r9a07g043", .data = &soc_rz_g2ul }, +#endif +#endif +#ifdef CONFIG_ARCH_R9A07G044 + { .compatible = "renesas,r9a07g044", .data = &soc_rz_g2l }, +#endif +#ifdef CONFIG_ARCH_R9A07G054 + { .compatible = "renesas,r9a07g054", .data = &soc_rz_v2l }, +#endif +#ifdef CONFIG_ARCH_R9A09G011 + { .compatible = "renesas,r9a09g011", .data = &soc_rz_v2m }, #endif #ifdef CONFIG_ARCH_SH73A0 { .compatible = "renesas,sh73a0", .data = &soc_shmobile_ag5 }, @@ -278,99 +413,141 @@ static const struct of_device_id renesas_socs[] __initconst = { { /* sentinel */ } }; +struct renesas_id { + unsigned int offset; + u32 mask; +}; + +static const struct renesas_id id_bsid __initconst = { + .offset = 0, + .mask = 0xff0000, + /* + * TODO: Upper 4 bits of BSID are for chip version, but the format is + * not known at this time so we don't know how to specify eshi and eslo + */ +}; + +static const struct renesas_id id_rzg2l __initconst = { + .offset = 0xa04, + .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, +}; + +static const struct of_device_id renesas_ids[] __initconst = { + { .compatible = "renesas,bsid", .data = &id_bsid }, + { .compatible = "renesas,r9a07g043-sysc", .data = &id_rzg2l }, + { .compatible = "renesas,r9a07g044-sysc", .data = &id_rzg2l }, + { .compatible = "renesas,r9a07g054-sysc", .data = &id_rzg2l }, + { .compatible = "renesas,r9a08g045-sysc", .data = &id_rzg2l }, + { .compatible = "renesas,r9a09g011-sys", .data = &id_rzv2m }, + { .compatible = "renesas,prr", .data = &id_prr }, + { /* sentinel */ } +}; + static int __init renesas_soc_init(void) { struct soc_device_attribute *soc_dev_attr; + unsigned int product, eshi = 0, eslo; const struct renesas_family *family; const struct of_device_id *match; const struct renesas_soc *soc; + const struct renesas_id *id; void __iomem *chipid = NULL; + const char *rev_prefix = ""; struct soc_device *soc_dev; struct device_node *np; - unsigned int product, eshi = 0, eslo; + const char *soc_id; + int ret; match = of_match_node(renesas_socs, of_root); if (!match) return -ENODEV; + soc_id = strchr(match->compatible, ',') + 1; soc = match->data; family = soc->family; - np = of_find_compatible_node(NULL, NULL, "renesas,bsid"); + np = of_find_matching_node_and_match(NULL, renesas_ids, &match); if (np) { + id = match->data; chipid = of_iomap(np, 0); of_node_put(np); + } else if (soc->id && family->reg) { + /* Try hardcoded CCCR/PRR fallback */ + id = &id_prr; + chipid = ioremap(family->reg, 4); + } - if (chipid) { - product = readl(chipid); + soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL); + if (!soc_dev_attr) { + if (chipid) iounmap(chipid); - - if (soc->id && ((product >> 16) & 0xff) != soc->id) { - pr_warn("SoC mismatch (product = 0x%x)\n", - product); - return -ENODEV; - } - } - - /* - * TODO: Upper 4 bits of BSID are for chip version, but the - * format is not known at this time so we don't know how to - * specify eshi and eslo - */ - - goto done; + return -ENOMEM; } - /* Try PRR first, then hardcoded fallback */ - np = of_find_compatible_node(NULL, NULL, "renesas,prr"); - if (np) { - chipid = of_iomap(np, 0); - of_node_put(np); - } else if (soc->id) { - chipid = ioremap(family->reg, 4); - } + soc_dev_attr->family = kstrdup_const(family->name, GFP_KERNEL); + soc_dev_attr->soc_id = kstrdup_const(soc_id, GFP_KERNEL); + if (chipid) { - product = readl(chipid); + product = readl(chipid + id->offset); iounmap(chipid); - /* R-Car M3-W ES1.1 incorrectly identifies as ES2.0 */ - if ((product & 0x7fff) == 0x5210) - product ^= 0x11; - if (soc->id && ((product >> 8) & 0xff) != soc->id) { + + if (id == &id_prr) { + /* R-Car M3-W ES1.1 incorrectly identifies as ES2.0 */ + if ((product & 0x7fff) == 0x5210) + product ^= 0x11; + /* R-Car M3-W ES1.3 incorrectly identifies as ES2.1 */ + if ((product & 0x7fff) == 0x5211) + product ^= 0x12; + + eshi = ((product >> 4) & 0x0f) + 1; + eslo = product & 0xf; + soc_dev_attr->revision = kasprintf(GFP_KERNEL, "ES%u.%u", + eshi, eslo); + } else if (id == &id_rzg2l) { + eshi = ((product >> 28) & 0x0f); + 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 && field_get(id->mask, product) != soc->id) { pr_warn("SoC mismatch (product = 0x%x)\n", product); - return -ENODEV; + ret = -ENODEV; + goto free_soc_dev_attr; } - eshi = ((product >> 4) & 0x0f) + 1; - eslo = product & 0xf; } -done: - soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL); - if (!soc_dev_attr) - return -ENOMEM; - - np = of_find_node_by_path("/"); - of_property_read_string(np, "model", &soc_dev_attr->machine); - of_node_put(np); - - soc_dev_attr->family = kstrdup_const(family->name, GFP_KERNEL); - soc_dev_attr->soc_id = kstrdup_const(strchr(match->compatible, ',') + 1, - GFP_KERNEL); - if (eshi) - soc_dev_attr->revision = kasprintf(GFP_KERNEL, "ES%u.%u", eshi, - eslo); - - pr_info("Detected Renesas %s %s %s\n", soc_dev_attr->family, - soc_dev_attr->soc_id, soc_dev_attr->revision ?: ""); + pr_info("Detected Renesas %s %s %s%s\n", soc_dev_attr->family, + soc_dev_attr->soc_id, rev_prefix, soc_dev_attr->revision ?: ""); soc_dev = soc_device_register(soc_dev_attr); if (IS_ERR(soc_dev)) { - kfree(soc_dev_attr->revision); - kfree_const(soc_dev_attr->soc_id); - kfree_const(soc_dev_attr->family); - kfree(soc_dev_attr); - return PTR_ERR(soc_dev); + ret = PTR_ERR(soc_dev); + goto free_soc_dev_attr; } return 0; + +free_soc_dev_attr: + kfree(soc_dev_attr->revision); + kfree_const(soc_dev_attr->soc_id); + kfree_const(soc_dev_attr->family); + kfree(soc_dev_attr); + return ret; } early_initcall(renesas_soc_init); 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