powerpc/powernv: Add interfaces for flash device access

[firefly-linux-kernel-4.4.55.git] / arch / powerpc / platforms / powernv / opal.c

diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 3fb981c0ca8046757f47e9d40dfd8d594ce66790..2241565b0739ff3bc6dc84f9bc6c63c70edf8b8c 100644 (file)
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -693,6 +693,15 @@ static void __init opal_dump_region_init(void)
                        "rc = %d\n", rc);
 }
 
+static void opal_flash_init(struct device_node *opal_node)
+{
+       struct device_node *np;
+
+       for_each_child_of_node(opal_node, np)
+               if (of_device_is_compatible(np, "ibm,opal-flash"))
+                       of_platform_device_create(np, NULL, NULL);
+}
+
 static void opal_ipmi_init(struct device_node *opal_node)
 {
        struct device_node *np;
@@ -817,7 +826,7 @@ static int __init opal_init(void)
                /* Setup error log interface */
                rc = opal_elog_init();
                /* Setup code update interface */
-               opal_flash_init();
+               opal_flash_update_init();
                /* Setup platform dump extract interface */
                opal_platform_dump_init();
                /* Setup system parameters interface */
@@ -829,6 +838,8 @@ static int __init opal_init(void)
        /* Initialize OPAL IPMI backend */
        opal_ipmi_init(opal_node);
 
+       opal_flash_init(opal_node);
+
        return 0;
 }
 machine_subsys_initcall(powernv, opal_init);
@@ -867,6 +878,9 @@ void opal_shutdown(void)
 EXPORT_SYMBOL_GPL(opal_invalid_call);
 EXPORT_SYMBOL_GPL(opal_ipmi_send);
 EXPORT_SYMBOL_GPL(opal_ipmi_recv);
+EXPORT_SYMBOL_GPL(opal_flash_read);
+EXPORT_SYMBOL_GPL(opal_flash_write);
+EXPORT_SYMBOL_GPL(opal_flash_erase);
 
 /* Convert a region of vmalloc memory to an opal sg list */
 struct opal_sg_list *opal_vmalloc_to_sg_list(void *vmalloc_addr,