[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/soc/amlogic/meson-gx-socinfo.c b/src/kernel/linux/v4.14/drivers/soc/amlogic/meson-gx-socinfo.c
new file mode 100644
index 0000000..f2d8c3c
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/soc/amlogic/meson-gx-socinfo.c
@@ -0,0 +1,177 @@
+/*
+ * Copyright (c) 2017 BayLibre, SAS
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/sys_soc.h>
+#include <linux/bitfield.h>
+#include <linux/regmap.h>
+#include <linux/mfd/syscon.h>
+
+#define AO_SEC_SD_CFG8 0xe0
+#define AO_SEC_SOCINFO_OFFSET AO_SEC_SD_CFG8
+
+#define SOCINFO_MAJOR GENMASK(31, 24)
+#define SOCINFO_PACK GENMASK(23, 16)
+#define SOCINFO_MINOR GENMASK(15, 8)
+#define SOCINFO_MISC GENMASK(7, 0)
+
+static const struct meson_gx_soc_id {
+ const char *name;
+ unsigned int id;
+} soc_ids[] = {
+ { "GXBB", 0x1f },
+ { "GXTVBB", 0x20 },
+ { "GXL", 0x21 },
+ { "GXM", 0x22 },
+ { "TXL", 0x23 },
+};
+
+static const struct meson_gx_package_id {
+ const char *name;
+ unsigned int major_id;
+ unsigned int pack_id;
+} soc_packages[] = {
+ { "S905", 0x1f, 0 },
+ { "S905M", 0x1f, 0x20 },
+ { "S905D", 0x21, 0 },
+ { "S905X", 0x21, 0x80 },
+ { "S905L", 0x21, 0xc0 },
+ { "S905M2", 0x21, 0xe0 },
+ { "S912", 0x22, 0 },
+};
+
+static inline unsigned int socinfo_to_major(u32 socinfo)
+{
+ return FIELD_GET(SOCINFO_MAJOR, socinfo);
+}
+
+static inline unsigned int socinfo_to_minor(u32 socinfo)
+{
+ return FIELD_GET(SOCINFO_MINOR, socinfo);
+}
+
+static inline unsigned int socinfo_to_pack(u32 socinfo)
+{
+ return FIELD_GET(SOCINFO_PACK, socinfo);
+}
+
+static inline unsigned int socinfo_to_misc(u32 socinfo)
+{
+ return FIELD_GET(SOCINFO_MISC, socinfo);
+}
+
+static const char *socinfo_to_package_id(u32 socinfo)
+{
+ unsigned int pack = socinfo_to_pack(socinfo) & 0xf0;
+ unsigned int major = socinfo_to_major(socinfo);
+ int i;
+
+ for (i = 0 ; i < ARRAY_SIZE(soc_packages) ; ++i) {
+ if (soc_packages[i].major_id == major &&
+ soc_packages[i].pack_id == pack)
+ return soc_packages[i].name;
+ }
+
+ return "Unknown";
+}
+
+static const char *socinfo_to_soc_id(u32 socinfo)
+{
+ unsigned int id = socinfo_to_major(socinfo);
+ int i;
+
+ for (i = 0 ; i < ARRAY_SIZE(soc_ids) ; ++i) {
+ if (soc_ids[i].id == id)
+ return soc_ids[i].name;
+ }
+
+ return "Unknown";
+}
+
+int __init meson_gx_socinfo_init(void)
+{
+ struct soc_device_attribute *soc_dev_attr;
+ struct soc_device *soc_dev;
+ struct device_node *np;
+ struct regmap *regmap;
+ unsigned int socinfo;
+ struct device *dev;
+ int ret;
+
+ /* look up for chipid node */
+ np = of_find_compatible_node(NULL, NULL, "amlogic,meson-gx-ao-secure");
+ if (!np)
+ return -ENODEV;
+
+ /* check if interface is enabled */
+ if (!of_device_is_available(np))
+ return -ENODEV;
+
+ /* check if chip-id is available */
+ if (!of_property_read_bool(np, "amlogic,has-chip-id"))
+ return -ENODEV;
+
+ /* node should be a syscon */
+ regmap = syscon_node_to_regmap(np);
+ of_node_put(np);
+ if (IS_ERR(regmap)) {
+ pr_err("%s: failed to get regmap\n", __func__);
+ return -ENODEV;
+ }
+
+ ret = regmap_read(regmap, AO_SEC_SOCINFO_OFFSET, &socinfo);
+ if (ret < 0)
+ return ret;
+
+ if (!socinfo) {
+ pr_err("%s: invalid chipid value\n", __func__);
+ return -EINVAL;
+ }
+
+ soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+ if (!soc_dev_attr)
+ return -ENODEV;
+
+ soc_dev_attr->family = "Amlogic Meson";
+
+ np = of_find_node_by_path("/");
+ of_property_read_string(np, "model", &soc_dev_attr->machine);
+ of_node_put(np);
+
+ soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%x:%x - %x:%x",
+ socinfo_to_major(socinfo),
+ socinfo_to_minor(socinfo),
+ socinfo_to_pack(socinfo),
+ socinfo_to_misc(socinfo));
+ soc_dev_attr->soc_id = kasprintf(GFP_KERNEL, "%s (%s)",
+ socinfo_to_soc_id(socinfo),
+ socinfo_to_package_id(socinfo));
+
+ 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(soc_dev_attr);
+ return PTR_ERR(soc_dev);
+ }
+ dev = soc_device_to_device(soc_dev);
+
+ dev_info(dev, "Amlogic Meson %s Revision %x:%x (%x:%x) Detected\n",
+ soc_dev_attr->soc_id,
+ socinfo_to_major(socinfo),
+ socinfo_to_minor(socinfo),
+ socinfo_to_pack(socinfo),
+ socinfo_to_misc(socinfo));
+
+ return 0;
+}
+device_initcall(meson_gx_socinfo_init);