[PATCH] arm: mvebu: turris_omnia: Remove hardcoded spi-nor device tree path

[Pali Rohár]

Linux kernel DTS files renamed spi-nor@0 node to flash@0 which effectively
broke U-Boot to boot new Linux kernel versions correctly.

So remove hardcoded spi-nor device tree path from Turris Omnia board code
and replace it by searching for mtd node by compatible string.

Signed-off-by: Pali Rohár <p...@kernel.org>
---
 board/CZ.NIC/turris_omnia/turris_omnia.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/board/CZ.NIC/turris_omnia/turris_omnia.c 
b/board/CZ.NIC/turris_omnia/turris_omnia.c
index 108d160f486d..9d7e63865f14 100644
--- a/board/CZ.NIC/turris_omnia/turris_omnia.c
+++ b/board/CZ.NIC/turris_omnia/turris_omnia.c
@@ -32,8 +32,6 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#define OMNIA_SPI_NOR_PATH             "/soc/spi@10600/spi-nor@0"
-
 #define OMNIA_I2C_BUS_NAME             "i2c@11000->i2cmux@70->i2c@0"
 
 #define OMNIA_I2C_MCU_CHIP_ADDR                0x2a
@@ -1030,14 +1028,22 @@ static bool fixup_mtd_partitions(void *blob, int 
offset, struct mtd_info *mtd)
 
 static void fixup_spi_nor_partitions(void *blob)
 {
-       struct mtd_info *mtd;
+       struct mtd_info *mtd = NULL;
+       char mtd_path[64];
        int node;
 
-       mtd = get_mtd_device_nm(OMNIA_SPI_NOR_PATH);
+       node = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "jedec,spi-nor");
+       if (node < 0)
+               goto fail;
+
+       if (fdt_get_path(gd->fdt_blob, node, mtd_path, sizeof(mtd_path)) < 0)
+               goto fail;
+
+       mtd = get_mtd_device_nm(mtd_path);
        if (IS_ERR_OR_NULL(mtd))
                goto fail;
 
-       node = fdt_path_offset(blob, OMNIA_SPI_NOR_PATH);
+       node = fdt_node_offset_by_compatible(blob, -1, "jedec,spi-nor");
        if (node < 0)
                goto fail;
 
-- 
2.20.1