board: stm32mp1: set environment variable fdtfile
For booting Linux in the generic distro mechanism and support of
FDTDIR in extlinux.conf , cmd/pxe.c retrieves the FDT file name
from "fdtfile" environment variable.
Dynamically build this variable with compatible of STMicroelectronics
boards.
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 62b648f..c64f20a 100644
--- a/board/st/stm32mp1/stm32mp1.c
+++ b/board/st/stm32mp1/stm32mp1.c
@@ -699,10 +699,19 @@
fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
&fdt_compat_len);
if (fdt_compat && fdt_compat_len) {
- if (strncmp(fdt_compat, "st,", 3) != 0)
+ if (strncmp(fdt_compat, "st,", 3) != 0) {
env_set("board_name", fdt_compat);
- else
+ } else {
+ char dtb_name[256];
+ int buf_len = sizeof(dtb_name);
+
env_set("board_name", fdt_compat + 3);
+
+ strncpy(dtb_name, fdt_compat + 3, buf_len);
+ buf_len -= strlen(fdt_compat + 3);
+ strncat(dtb_name, ".dtb", buf_len);
+ env_set("fdtfile", dtb_name);
+ }
}
ret = uclass_get_device_by_driver(UCLASS_MISC,
DM_GET_DRIVER(stm32mp_bsec),