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 ---
board/st/stm32mp1/stm32mp1.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c index 52881adef7..89a088cd28 100644 --- a/board/st/stm32mp1/stm32mp1.c +++ b/board/st/stm32mp1/stm32mp1.c @@ -715,10 +715,19 @@ int board_late_init(void) 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),