init: Support for emmc boot and init.target.rc

 * Via CodeAurora

Change-Id: Iaa9ed356574f364d8061e8941cffc3d458efc603

init/init.c

@@ -95,6 +95,8 @@ static time_t process_needs_restart;
 
 static const char *ENV[32];
 
+static unsigned emmc_boot = 0;
+
 /* add_environment - add "key=value" to the current environment */
 int add_environment(const char *key, const char *val)
 {
@@ -611,6 +613,10 @@ static void import_kernel_nv(char *name, int for_emulator)
 
     if (!strcmp(name,"qemu")) {
         strlcpy(qemu, value, sizeof(qemu));
+    } else if (!strcmp(name,"androidboot.emmc")) {
+        if (!strcmp(value,"true")) {
+            emmc_boot = 1;
+        }
     } else if (!strncmp(name, "androidboot.", 12) && name_len > 12) {
         const char *boot_prop_name = name + 12;
         char prop[PROP_NAME_MAX];
@@ -659,6 +665,7 @@ static void export_kernel_boot_props(void)
 
     snprintf(tmp, PROP_VALUE_MAX, "%d", revision);
     property_set("ro.revision", tmp);
+    property_set("ro.emmc",emmc_boot ? "1" : "0");
 
     /* TODO: these are obsolete. We should delete them */
     if (!strcmp(bootmode,"factory"))
@@ -890,6 +897,12 @@ int main(int argc, char **argv)
     INFO("reading config file\n");
     init_parse_config_file("/init.rc");
 
+    /* Check for a target specific initialisation file and read if present */
+    if (access("/init.target.rc", R_OK) == 0) {
+        INFO("Reading target specific config file");
+            init_parse_config_file("/init.target.rc");
+    }
+
     action_for_each_trigger("early-init", action_add_queue_tail);
 
     queue_builtin_action(wait_for_coldboot_done_action, "wait_for_coldboot_done");
@@ -902,7 +915,11 @@ int main(int argc, char **argv)
     /* skip mounting filesystems in charger mode */
     if (!is_charger) {
         action_for_each_trigger("early-fs", action_add_queue_tail);
+    if(emmc_boot) {
+        action_for_each_trigger("emmc-fs", action_add_queue_tail);
+    } else {
         action_for_each_trigger("fs", action_add_queue_tail);
+    }
         action_for_each_trigger("post-fs", action_add_queue_tail);
         action_for_each_trigger("post-fs-data", action_add_queue_tail);
     }