Support a way to put SMBIOS properties in the device tree. These can be
placed in a 'board' device in an 'smbios' subnode.
Signed-off-by: Simon Glass <s...@chromium.org>
---
(no changes since v1)
lib/smbios.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++------
1 file changed, 50 insertions(+), 6 deletions(-)
diff --git a/lib/smbios.c b/lib/smbios.c
index 4bb3bac56b4..28a2ddf7a69 100644
--- a/lib/smbios.c
+++ b/lib/smbios.c
@@ -52,6 +52,43 @@ static int smbios_add_string(char *start, const char *str)
}
}
+/**
+ * smbios_add_prop_default() - Add a property from the device tree or default
+ *
+ * @start: string area start address
+ * @node: node containing the information to write (ofnode_null() if none)
+ * @prop: property to write
+ * @def: default string if the node has no such property
+ * @return 0 if not found, else SMBIOS string number (1 or more)
+ */
+static int smbios_add_prop_default(char *start, ofnode node, const char *prop,
+ const char *def)
+{
+ const char *str = NULL;
+
+ if (IS_ENABLED(CONFIG_OF_CONTROL))
+ str = ofnode_read_string(node, prop);
+ if (str)
+ return smbios_add_string(start, str);
+ else if (def)
+ return smbios_add_string(start, def);
+
+ return 0;
+}
+
+/**
+ * smbios_add_prop() - Add a property from the device tree
+ *
+ * @start: string area start address
+ * @node: node containing the information to write (ofnode_null() if none)
+ * @prop: property to write
+ * @return 0 if not found, else SMBIOS string number (1 or more)
+ */
+static int smbios_add_prop(char *start, ofnode node, const char *prop)
+{
+ return smbios_add_prop_default(start, node, prop, NULL);
+}
+
/**
* smbios_string_table_len() - compute the string area size
*
@@ -120,11 +157,15 @@ static int smbios_write_type1(ulong *current, int handle,
ofnode node)
t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type1));
fill_smbios_header(t, SMBIOS_SYSTEM_INFORMATION, len, handle);
- t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
- t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME);
+ t->manufacturer = smbios_add_prop_default(t->eos, node, "manufactuer",
+ CONFIG_SMBIOS_MANUFACTURER);
+ t->product_name = smbios_add_prop_default(t->eos, node, "product",
+ CONFIG_SMBIOS_PRODUCT_NAME);
if (serial_str) {
- strncpy((char *)t->uuid, serial_str, sizeof(t->uuid));
t->serial_number = smbios_add_string(t->eos, serial_str);
+ strncpy((char *)t->uuid, serial_str, sizeof(t->uuid));
+ } else {
+ t->serial_number = smbios_add_prop(t->eos, node, "serial");
}
len = t->length + smbios_string_table_len(t->eos);
@@ -142,8 +183,10 @@ static int smbios_write_type2(ulong *current, int handle,
ofnode node)
t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type2));
fill_smbios_header(t, SMBIOS_BOARD_INFORMATION, len, handle);
- t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
- t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME);
+ t->manufacturer = smbios_add_prop_default(t->eos, node, "manufactuer",
+ CONFIG_SMBIOS_MANUFACTURER);
+ t->product_name = smbios_add_prop_default(t->eos, node, "product",
+ CONFIG_SMBIOS_PRODUCT_NAME);
t->feature_flags = SMBIOS_BOARD_FEATURE_HOSTING;
t->board_type = SMBIOS_BOARD_MOTHERBOARD;
@@ -162,7 +205,8 @@ static int smbios_write_type3(ulong *current, int handle,
ofnode node)
t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type3));
fill_smbios_header(t, SMBIOS_SYSTEM_ENCLOSURE, len, handle);
- t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
+ t->manufacturer = smbios_add_prop_default(t->eos, node, "manufactuer",
+ CONFIG_SMBIOS_MANUFACTURER);
t->chassis_type = SMBIOS_ENCLOSURE_DESKTOP;
t->bootup_state = SMBIOS_STATE_SAFE;
t->power_supply_state = SMBIOS_STATE_SAFE;
--
2.28.0.806.g8561365e88-goog
