From 99f6743d6323c7cfa00a2517896aaf0af4f6a88e Mon Sep 17 00:00:00 2001 From: Patrick Delaunay Date: Wed, 22 Apr 2020 14:29:14 +0200 Subject: [PATCH] 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 Reviewed-by: Patrice Chotard --- 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 62b648f6e4..c64f20ab08 100644 --- a/board/st/stm32mp1/stm32mp1.c +++ b/board/st/stm32mp1/stm32mp1.c @@ -699,10 +699,19 @@ 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), -- 2.39.5