[PATCH 14/16] arch: arm: fsl-layerscape: allow "opt-out" of fsl_setenv_bootcmd

Mathew McBride matt at traverse.com.au
Fri Jul 21 06:39:29 CEST 2023

Allow individual Layerscape boards to opt-out of fsl_setenv_bootcmd
by declaring the original function as weak.

fsl_setenv_bootcmd is used to change the bootcmd based on the
TF-A boot source (e.g QSPI vs SD/MMC) for reasons including
secure boot / integrity measurements and DPAA2 configuration loading.
See previous discussion at [1].

On the Ten64 board, our bootcmd is the same across
all TF-A boot sources so we don't want this behaviour.

Signed-off-by: Mathew McBride <matt at traverse.com.au>

[1] https://patchwork.ozlabs.org/project/uboot/patch/20211110044639.7070-3-matt@traverse.com.au/#2790037
 arch/arm/cpu/armv8/fsl-layerscape/soc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
index 359cbc0430..577a0b6098 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
@@ -810,7 +810,7 @@ int qspi_ahb_init(void)
 #define MAX_BOOTCMD_SIZE	512
-int fsl_setenv_bootcmd(void)
+__weak int fsl_setenv_bootcmd(void)
 	int ret;
 	enum boot_src src = get_boot_src();

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