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board: stm32mp1: set environment variable fdtfile

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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>
This commit is contained in:
Patrick Delaunay 2020-04-22 14:29:14 +02:00
parent 055065a8ac
commit 99f6743d63
1 changed files with 11 additions and 2 deletions
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13
board/st/stm32mp1/stm32mp1.c
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@ -699,10 +699,19 @@ int board_late_init(void)
fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible", fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
&fdt_compat_len); &fdt_compat_len);
if (fdt_compat && 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); 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); 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, ret = uclass_get_device_by_driver(UCLASS_MISC,
DM_GET_DRIVER(stm32mp_bsec), DM_GET_DRIVER(stm32mp_bsec),