imx8m: Enable LTO by default

In an attempt to select ARMV8_SPL_EXCEPTION_VECTORS, the SPL size
could not fit into the internal SRAM of some imx8m targets:

   aarch64:  +   imx8mm_phg
+aarch64-linux-ld.bfd: u-boot-spl section `__u_boot_list' will not fit in region `.sram'
+aarch64-linux-ld.bfd: region `.sram' overflowed by 1824 bytes

Select LTO to prevent that.

Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Marek Vasut <marex@denx.de>

diff --git a/arch/arm/mach-imx/imx8m/Kconfig b/arch/arm/mach-imx/imx8m/Kconfig
index b1937198402fae7357a7b4fc3047a498504d8bc4..328c3e38805144a2cc108731fc0780eeccaca562 100644 (file)
--- a/arch/arm/mach-imx/imx8m/Kconfig
+++ b/arch/arm/mach-imx/imx8m/Kconfig
@@ -5,6 +5,7 @@ config IMX8M
        select BINMAN
        select GICV3 if ARMV8_PSCI
        select HAS_CAAM
+       select LTO
        select ROM_UNIFIED_SECTIONS
        select ARMV8_CRYPTO