diff --git a/lib/cpus/aarch64/cortex_a78c.S b/lib/cpus/aarch64/cortex_a78c.S
index 71f0725..88bd291 100644
--- a/lib/cpus/aarch64/cortex_a78c.S
+++ b/lib/cpus/aarch64/cortex_a78c.S
@@ -18,6 +18,33 @@
 #endif
 
 /* --------------------------------------------------
+ * Errata Workaround for A78C Erratum 1827430.
+ * This applies to revision r0p0 of the Cortex A78C
+ * processor and is fixed in r0p1.
+ * x0: variant[4:7] and revision[0:3] of current cpu.
+ * Shall clobber: x0-x17
+ * --------------------------------------------------
+ */
+func errata_a78c_1827430_wa
+	mov	x17, x30
+	bl	check_errata_1827430
+	cbz	x0, 1f
+
+	/* Disable allocation of splintered pages in the L2 TLB */
+	mrs	x1, CORTEX_A78C_CPUECTLR_EL1
+	orr	x1, x1, CORTEX_A78C_CPUECTLR_EL1_MM_ASP_EN
+	msr	CORTEX_A78C_CPUECTLR_EL1, x1
+1:
+	ret	x17
+endfunc errata_a78c_1827430_wa
+
+func check_errata_1827430
+	/* Applies to revision r0p0 only */
+	mov	x1, #0x00
+	b	cpu_rev_var_ls
+endfunc check_errata_1827430
+
+/* --------------------------------------------------
  * Errata Workaround for Cortex A78C Erratum 2376749.
  * This applies to revision r0p1 and r0p2 of the A78C
  * and is currently open. It is a Cat B erratum.
@@ -225,6 +252,11 @@
 	bl	cpu_get_rev_var
 	mov	x18, x0
 
+#if ERRATA_A78C_1827430
+	mov	x0, x18
+	bl	errata_a78c_1827430_wa
+#endif
+
 #if ERRATA_A78C_2132064
 	mov	x0, x18
 	bl	errata_a78c_2132064_wa
@@ -299,6 +331,7 @@
 	 * Report all errata. The revision-variant information is passed to
 	 * checking functions of each errata.
 	 */
+	report_errata ERRATA_A78C_1827430, cortex_a78c, 1827430
 	report_errata ERRATA_A78C_2132064, cortex_a78c, 2132064
 	report_errata ERRATA_A78C_2242638, cortex_a78c, 2242638
 	report_errata ERRATA_A78C_2376749, cortex_a78c, 2376749
diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk
index e26548f..13cf508 100644
--- a/lib/cpus/cpu-ops.mk
+++ b/lib/cpus/cpu-ops.mk
@@ -354,6 +354,10 @@
 # to revisions r0p0 and r0p1 of the A78 AE cpu. It is still open.
 CPU_FLAG_LIST += ERRATA_A78_AE_2395408
 
+# Flag to apply erratum 1827430 workaround during reset. This erratum applies
+# to revision r0p0 of the A78C cpu. It is fixed in r0p1.
+CPU_FLAG_LIST += ERRATA_A78C_1827430
+
 # Flag to apply erratum 2132064 workaround during reset. This erratum applies
 # to revisions r0p1 and r0p2 of the A78C cpu. It is still open.
 CPU_FLAG_LIST += ERRATA_A78C_2132064