Signing on i.MX8MQ is done by signing only the PBL, since the DRAM is
not available on early start and the SRAM is not big enough to contain
the whole image. Reserve a CSF area between PBL and the piggydata, to
ensure that the CSF area can be loaded into SRAM.
Signed-off-by: Rouven Czerwinski <r.czerwinski@xxxxxxxxxxxxxx>
---
arch/arm/lib/pbl.lds.S | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm/lib/pbl.lds.S b/arch/arm/lib/pbl.lds.S
index 300671b..d2f5ab2 100644
--- a/arch/arm/lib/pbl.lds.S
+++ b/arch/arm/lib/pbl.lds.S
@@ -90,6 +90,16 @@ SECTIONS
pbl_memory_size = . - BASE;
+#if defined(CONFIG_CPU_64) && defined(CONFIG_HABV4)
+ . = ALIGN(0x1000);
+ __csf_start = .;
+ .hab_csf : {
+ BYTE(0x5a);
+ . += + 0x1fff;
+ } = 0x5a
+ __csf_end = .;
+#endif /* CONFIG_CPU_64 && CONFIG_HABV4 */
+
. = ALIGN(4);
__piggydata_start = .;
.piggydata : {
--
git-series 0.9.1
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