vbe: Add info about the VBE device to the fwupd node

At present we put the driver in the /chosen node in U-Boot. This is a bit
strange, since U-Boot doesn't normally use that node itself. It is better
to put it under the bootstd node.

To make this work we need to copy create the node under /chosen when
fixing up the device tree. Copy over all the properties so that fwupd
knows what to do.

Update the sandbox device tree accordingly.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index db72c64..2bcc2e8 100644 (file)
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -78,6 +78,7 @@
        };
 
        bootstd {
+               u-boot,dm-vpl;
                compatible = "u-boot,boot-std";
 
                filename-prefixes = "/", "/boot/";
@@ -90,6 +91,19 @@
                efi {
                        compatible = "u-boot,distro-efi";
                };
+
+               firmware0 {
+                       u-boot,dm-vpl;
+                       compatible = "fwupd,vbe-simple";
+                       storage = "mmc1";
+                       skip-offset = <0x200>;
+                       area-start = <0x400>;
+                       area-size = <0x1000>;
+                       state-offset = <0x400>;
+                       state-size = <0x40>;
+                       version-offset = <0x800>;
+                       version-size = <0x100>;
+               };
        };
 
        fuzzing-engine {
@@ -1404,21 +1418,6 @@
                        compatible = "denx,u-boot-fdt-test";
                        reg = <9 1>;
                };
-
-               fwupd {
-                       compatible = "simple-bus";
-                       firmware0 {
-                               compatible = "fwupd,vbe-simple";
-                               storage = "mmc1";
-                               area-start = <0x400>;
-                               area-size = <0x1000>;
-                               skip-offset = <0x200>;
-                               state-offset = <0x400>;
-                               state-size = <0x40>;
-                               version-offset = <0x800>;
-                               version-size = <0x100>;
-                       };
-               };
        };
 
        translation-test@8000 {

diff --git a/boot/vbe_simple_os.c b/boot/vbe_simple_os.c
index 87778bb..b2041a9 100644 (file)
--- a/boot/vbe_simple_os.c
+++ b/boot/vbe_simple_os.c
@@ -62,24 +62,34 @@ static int bootmeth_vbe_simple_ft_fixup(void *ctx, struct event *event)
         */
        for (vbe_find_first_device(&dev); dev; vbe_find_next_device(&dev)) {
                struct simple_state state;
-               ofnode node, subnode;
+               ofnode node, subnode, chosen;
                int ret;
 
                if (strcmp("vbe_simple", dev->driver->name))
                        continue;
 
-               /* Check if there is a node to fix up */
-               node = oftree_path(tree, "/chosen/fwupd");
-               if (!ofnode_valid(node))
-                       continue;
-               subnode = ofnode_find_subnode(node, dev->name);
-               if (!ofnode_valid(subnode))
+               /* Check if there is a node to fix up, adding if not */
+               chosen = oftree_path(tree, "/chosen");
+               if (!ofnode_valid(chosen))
                        continue;
+               ret = ofnode_add_subnode(chosen, "fwupd", &node);
+               if (ret && ret != -EEXIST)
+                       return log_msg_ret("fwu", ret);
+
+               ret = ofnode_add_subnode(node, dev->name, &subnode);
+               if (ret && ret != -EEXIST)
+                       return log_msg_ret("dev", ret);
 
-               log_debug("Fixing up: %s\n", dev->name);
                ret = device_probe(dev);
                if (ret)
                        return log_msg_ret("probe", ret);
+
+               /* Copy over the vbe properties for fwupd */
+               log_debug("Fixing up: %s\n", dev->name);
+               ret = ofnode_copy_props(dev_ofnode(dev), subnode);
+               if (ret)
+                       return log_msg_ret("cp", ret);
+
                ret = vbe_simple_read_state(dev, &state);
                if (ret)
                        return log_msg_ret("read", ret);

diff --git a/test/boot/vbe_simple.c b/test/boot/vbe_simple.c
index a50785d..5e61840 100644 (file)
--- a/test/boot/vbe_simple.c
+++ b/test/boot/vbe_simple.c
@@ -16,7 +16,12 @@
 #include <test/ut.h>
 #include "bootstd_common.h"
 
-/* Basic test of reading nvdata and updating a fwupd node in the device tree */
+/*
+ * Basic test of reading nvdata and updating a fwupd node in the device tree
+ *
+ * This sets up its own VBE info in the device, using bootstd_setup_for_tests()
+ * then does a VBE fixup and checks that everything is present.
+ */
 static int vbe_simple_test_base(struct unit_test_state *uts)
 {
        const char *version, *bl_version;