MIPS: Octeon: Use model string from DTB for unknown board type

Use model string from DTB for board type if the board is unknown.
This is more informative, e.g. with EdgeRouter Pro the /proc/cpuinfo
will display "ubnt,e200 (CN6120p1.1-1000-NSP)" instead of misleading
"Unsupported Board".

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12582/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c
index 09a83cd6bfe81a329a1beacb3e9b7c4a32d21884..37ac229bebb6d0e2bb75d3a55da631dbf8ce67b3 100644 (file)
--- a/arch/mips/cavium-octeon/setup.c
+++ b/arch/mips/cavium-octeon/setup.c
@@ -469,8 +469,16 @@ static void __init init_octeon_system_type(void)
        char const *board_type;
 
        board_type = cvmx_board_type_to_string(octeon_bootinfo->board_type);
-       if (board_type == NULL)
-               board_type = "Unsupported Board";
+       if (board_type == NULL) {
+               struct device_node *root;
+               int ret;
+
+               root = of_find_node_by_path("/");
+               ret = of_property_read_string(root, "model", &board_type);
+               of_node_put(root);
+               if (ret)
+                       board_type = "Unsupported Board";
+       }
 
        snprintf(octeon_system_type, sizeof(octeon_system_type), "%s (%s)",
                 board_type, octeon_model_get_string(read_c0_prid()));