board: stm32mp1: no MTD partitions fixup for serial boot

Remove the update of the MTD partitions in kernel device tree
for serial boot (USB / UART), and the kernel will use the MTD
partitions define in the loaded DTB because U-Boot can't known the
expected flash layout in this case.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c
index 03a19af..8a3ce0a 100644 (file)
--- a/board/st/stm32mp1/stm32mp1.c
+++ b/board/st/stm32mp1/stm32mp1.c
@@ -848,9 +848,14 @@ int ft_board_setup(void *blob, struct bd_info *bd)
                { "st,stm32mp15-fmc2",          MTD_DEV_TYPE_NAND, },
                { "st,stm32mp1-fmc2-nfc",       MTD_DEV_TYPE_NAND, },
        };
-
-       if (IS_ENABLED(CONFIG_FDT_FIXUP_PARTITIONS))
-               fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
+       char *boot_device;
+
+       /* Check the boot-source and don't update MTD for serial or usb boot */
+       boot_device = env_get("boot_device");
+       if (!boot_device ||
+           (strcmp(boot_device, "serial") && strcmp(boot_device, "usb")))
+               if (IS_ENABLED(CONFIG_FDT_FIXUP_PARTITIONS))
+                       fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
 
        return 0;
 }