--- zzzz-none-000/linux-5.4.213/arch/arm/kernel/devtree.c	2022-09-15 10:04:56.000000000 +0000
+++ miami-7690-761/linux-5.4.213/arch/arm/kernel/devtree.c	2024-05-29 11:19:50.000000000 +0000
@@ -24,6 +24,11 @@
 #include <asm/mach/arch.h>
 #include <asm/mach-types.h>
 
+#if defined(CONFIG_MTD_AVM_MTDRAM)
+int __init avm_mtdram_mem_reserve(void);
+#else
+static inline int avm_mtdram_mem_reserve(void) { return 0; }
+#endif
 
 #ifdef CONFIG_SMP
 extern struct of_cpu_method __cpu_method_of_table[];
@@ -216,6 +221,9 @@
 	DT_MACHINE_START(GENERIC_DT, "Generic DT based system")
 		.l2c_aux_val = 0x0,
 		.l2c_aux_mask = ~0x0,
+#if defined(CONFIG_MTD_AVM_MTDRAM)
+	.reserve = (void*)avm_mtdram_mem_reserve
+#endif
 	MACHINE_END
 
 	mdesc_best = &__mach_desc_GENERIC_DT;