--- zzzz-none-000/linux-4.19.183/arch/arm/mm/init.c	2021-03-24 10:07:39.000000000 +0000
+++ bcm63-7530ax-756/linux-4.19.183/arch/arm/mm/init.c	2023-06-28 08:54:18.000000000 +0000
@@ -296,7 +296,10 @@
 	if (mdesc->reserve)
 		mdesc->reserve();
 
+	avm_mtdram_mem_reserve();
+
 	early_init_fdt_reserve_self();
+
 	early_init_fdt_scan_reserved_mem();
 
 	/* reserve memory for DMA contiguous allocations */
@@ -773,8 +776,12 @@
 static inline void fix_kernmem_perms(void) { }
 #endif /* CONFIG_STRICT_KERNEL_RWX */
 
-void free_initmem(void)
+void __init avm_mtd_cleanup(void) __weak;
+void __init avm_mtd_cleanup(void) {}
+
+void __ref free_initmem(void)
 {
+	avm_mtd_cleanup();
 	fix_kernmem_perms();
 
 	poison_init_mem(__init_begin, __init_end - __init_begin);