diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index 835adb85b016..e3ae937bef1c 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -115,6 +115,8 @@ struct zpci_report_error_header {
 	u8 data[0];	/* Subsequent Data passed verbatim to SCLP ET 24 */
 } __packed;
 
+extern char *sclp_early_sccb;
+
 void sclp_early_set_buffer(void *sccb);
 int sclp_early_read_info(void);
 int sclp_early_read_storage_info(void);
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 3364ebfae215..f46f12aebceb 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -793,6 +793,7 @@ static void __init reserve_kernel(void)
 	unsigned long start_pfn = PFN_UP(__pa(_end));
 
 	memblock_reserve(0, STARTUP_NORMAL_OFFSET);
+	memblock_reserve((unsigned long)sclp_early_sccb, EXT_SCCB_READ_SCP);
 	memblock_reserve((unsigned long)_stext, PFN_PHYS(start_pfn)
 			 - (unsigned long)_stext);
 }
diff --git a/drivers/s390/char/sclp.h b/drivers/s390/char/sclp.h
index 8dd8ad83b78b..5e434108aae6 100644
--- a/drivers/s390/char/sclp.h
+++ b/drivers/s390/char/sclp.h
@@ -310,8 +310,6 @@ extern int sclp_console_drop;
 extern unsigned long sclp_console_full;
 extern bool sclp_mask_compat_mode;
 
-extern char *sclp_early_sccb;
-
 void sclp_early_wait_irq(void);
 int sclp_early_cmd(sclp_cmdw_t cmd, void *sccb);
 unsigned int sclp_early_con_check_linemode(struct init_sccb *sccb);