diff --git a/arch/powerpc/platforms/8xx/Kconfig b/arch/powerpc/platforms/8xx/Kconfig
index d408162d5af4..e0fe670f06f6 100644
--- a/arch/powerpc/platforms/8xx/Kconfig
+++ b/arch/powerpc/platforms/8xx/Kconfig
@@ -157,6 +157,13 @@ config I2C_SPI_SMC1_UCODE_PATCH
 	help
 	  Help not implemented yet, coming soon.
 
+config SMC_UCODE_PATCH
+	bool "SMC relocation patch"
+	help
+	  This microcode relocates SMC1 and SMC2 parameter RAMs at
+	  offset 0x1ec0 and 0x1fc0 to allow extended parameter RAM
+	  for SCC3 and SCC4.
+
 endchoice
 
 config UCODE_PATCH
diff --git a/arch/powerpc/platforms/8xx/micropatch.c b/arch/powerpc/platforms/8xx/micropatch.c
index 4ae846030ea7..c80bd7afd6c5 100644
--- a/arch/powerpc/platforms/8xx/micropatch.c
+++ b/arch/powerpc/platforms/8xx/micropatch.c
@@ -234,6 +234,94 @@ static uint patch_2f00[] __initdata = {
 static uint patch_2e00[] __initdata = {};
 #endif
 
+/*
+ * SMC relocation patch arrays.
+ */
+
+#ifdef CONFIG_SMC_UCODE_PATCH
+
+static char patch_name[] __initdata = "SMC";
+
+static struct patch_params patch_params __initdata = {
+	2, 0x8080, 0x8088,
+};
+
+static uint patch_2000[] __initdata = {
+	0x3fff0000, 0x3ffd0000, 0x3ffb0000, 0x3ff90000,
+	0x5fefeff8, 0x5f91eff8, 0x3ff30000, 0x3ff10000,
+	0x3a11e710, 0xedf0ccb9, 0xf318ed66, 0x7f0e5fe2,
+	0x7fedbb38, 0x3afe7468, 0x7fedf4d8, 0x8ffbb92d,
+	0xb83b77fd, 0xb0bb5eb9, 0xdfda7fed, 0x90bde74d,
+	0x6f0dcbd3, 0xe7decfed, 0xcb50cfed, 0xcfeddf6d,
+	0x914d4f74, 0x5eaedfcb, 0x9ee0e7df, 0xefbb6ffb,
+	0xe7ef7f0e, 0x9ee57fed, 0xebb7effa, 0xeb30affb,
+	0x7fea90b3, 0x7e0cf09f, 0xbffff318, 0x5fffdfff,
+	0xac35efea, 0x7fce1fc1, 0xe2ff5fbd, 0xaffbe2ff,
+	0x5fbfaffb, 0xf9a87d0f, 0xaef8770f, 0x7d0fb0a2,
+	0xeffbbfff, 0xcfef5fba, 0x7d0fbfff, 0x5fba4cf8,
+	0x7fddd09b, 0x49f847fd, 0x7efdf097, 0x7fedfffd,
+	0x7dfdf093, 0xef7e7e1e, 0x5fba7f0e, 0x3a11e710,
+	0xedf0cc87, 0xfb18ad0a, 0x1f85bbb8, 0x74283b7e,
+	0x7375e4bb, 0x2ab64fb8, 0x5c7de4bb, 0x32fdffbf,
+	0x5f0843f8, 0x7ce3e1bb, 0xe74f7ded, 0x6f0f4fe8,
+	0xc7ba32be, 0x73f2efeb, 0x600b4f78, 0xe5bb760b,
+	0x5388aef8, 0x4ef80b6a, 0xcfef9ee5, 0xabf8751f,
+	0xefef5b88, 0x741f4fe8, 0x751e760d, 0x7fdb70dd,
+	0x741cafce, 0xefcc7fce, 0x751e7088, 0x741ce7bb,
+	0x334ecfed, 0xafdbefeb, 0xe5bb760b, 0x53ceaef8,
+	0xafe8e7eb, 0x4bf8771e, 0x7e007fed, 0x4fcbe2cc,
+	0x7fbc3085, 0x7b0f7a0f, 0x34b177fd, 0xb0e75e93,
+	0xdf313e3b, 0xaf78741f, 0x741f30cc, 0xcfef5f08,
+	0x741f3e88, 0xafb8771e, 0x5f437fed, 0x0bafe2cc,
+	0x741ccfec, 0xe5ca53a9, 0x6fcb4f74, 0x5e89df27,
+	0x2a923d14, 0x4b8fdf0c, 0x751f741c, 0x6c1eeffa,
+	0xefea7fce, 0x6ffc309a, 0xefec3fca, 0x308fdf0a,
+	0xadf85e7a, 0xaf7daefd, 0x5e7adf0a, 0x5e7aafdd,
+	0x761f1088, 0x1e7c7efd, 0x3089fffe, 0x4908fb18,
+	0x5fffdfff, 0xafbbf0f7, 0x4ef85f43, 0xadf81489,
+	0x7a0f7089, 0xcfef5089, 0x7a0fdf0c, 0x5e7cafed,
+	0xbc6e780f, 0xefef780f, 0xefef790f, 0xa7f85eeb,
+	0xffef790f, 0xefef790f, 0x1489df0a, 0x5e7aadfd,
+	0x5f09fffb, 0xe79aded9, 0xeff96079, 0x607ae79a,
+	0xded8eff9, 0x60795edb, 0x607acfef, 0xefefefdf,
+	0xefbfef7f, 0xeeffedff, 0xebffe7ff, 0xafefafdf,
+	0xafbfaf7f, 0xaeffadff, 0xabffa7ff, 0x6fef6fdf,
+	0x6fbf6f7f, 0x6eff6dff, 0x6bff67ff, 0x2fef2fdf,
+	0x2fbf2f7f, 0x2eff2dff, 0x2bff27ff, 0x4e08fd1f,
+	0xe5ff6e0f, 0xaff87eef, 0x7e0ffdef, 0xf11f6079,
+	0xabf8f51e, 0x7e0af11c, 0x37cfae16, 0x7fec909a,
+	0xadf8efdc, 0xcfeae52f, 0x7d0fe12b, 0xf11c6079,
+	0x7e0a4df8, 0xcfea5ea0, 0x7d0befec, 0xcfea5ea2,
+	0xe522efdc, 0x5ea2cfda, 0x4e08fd1f, 0x6e0faff8,
+	0x7c1f761f, 0xfdeff91f, 0x6079abf8, 0x761cee00,
+	0xf91f2bfb, 0xefefcfec, 0xf91f6079, 0x761c27fb,
+	0xefdf5e83, 0xcfdc7fdd, 0x50f84bf8, 0x47fd7c1f,
+	0x761ccfcf, 0x7eef7fed, 0x7dfd70ef, 0xef7e7f1e,
+	0x771efb18, 0x6079e722, 0xe6bbe5bb, 0x2e66e5bb,
+	0x600b2ee1, 0xe2bbe2bb, 0xe2bbe2bb, 0x2f5ee2bb,
+	0xe2bb2ff9, 0x6079e2bb,
+};
+
+static uint patch_2f00[] __initdata = {
+	0x30303030, 0x3e3e3030, 0xaf79b9b3, 0xbaa3b979,
+	0x9693369f, 0x79f79777, 0x97333fff, 0xfb3b9e9f,
+	0x79b91d11, 0x9e13f3ff, 0x3f9b6bd9, 0xe173d136,
+	0x695669d1, 0x697b3daf, 0x79b93a3a, 0x3f979f91,
+	0x379ff976, 0xf99777fd, 0x9779737d, 0xe9d6bbf9,
+	0xbfffd9df, 0x97f7fd97, 0x6f7b9bff, 0xf9bd9683,
+	0x397db973, 0xd97b3b9f, 0xd7f9f733, 0x9993bb9e,
+	0xe1f9ef93, 0x73773337, 0xb936917d, 0x11f87379,
+	0xb979d336, 0x8b7ded73, 0x1b7d9337, 0x31f3f22f,
+	0x3f2327ee, 0xeeeeeeee, 0xeeeeeeee, 0xeeeeeeee,
+	0xeeeeee4b, 0xf4fbdbd2, 0x58bb1878, 0x577fdfd2,
+	0xd573b773, 0xf7374b4f, 0xbdbd25b8, 0xb177d2d1,
+	0x7376856b, 0xbfdd687b, 0xdd2fff8f, 0x78ffff8f,
+	0xf22f0000,
+};
+
+static uint patch_2e00[] __initdata = {};
+#endif
+
 static void __init cpm_write_patch(cpm8xx_t *cp, int offset, uint *patch, int len)
 {
 	if (!len)
@@ -270,6 +358,15 @@ void __init cpm_load_patch(cpm8xx_t *cp)
 		}
 	}
 
+	if (IS_ENABLED(CONFIG_SMC_UCODE_PATCH)) {
+		smc_uart_t *smp;
+
+		smp = (smc_uart_t *)&cp->cp_dparam[PROFF_SMC1];
+		out_be16(&smp->smc_rpbase, 0x1ec0);
+		smp = (smc_uart_t *)&cp->cp_dparam[PROFF_SMC2];
+		out_be16(&smp->smc_rpbase, 0x1fc0);
+	}
+
 	out_be16(&cp->cp_cpmcr1, patch_params.cpmcr1);
 	out_be16(&cp->cp_cpmcr2, patch_params.cpmcr2);
 	out_be16(&cp->cp_cpmcr3, patch_params.cpmcr3);