1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm926ejs/spear/cpu.c b/arch/arm/cpu/arm926ejs/spear/cpu.c
index e39cdba..be0d14f 100644
--- a/arch/arm/cpu/arm926ejs/spear/cpu.c
+++ b/arch/arm/cpu/arm926ejs/spear/cpu.c
@@ -83,3 +83,37 @@ int print_cpuinfo(void)
 	return 0;
 }
 #endif
+
+#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_NAND_ECC_BCH)
+static int do_switch_ecc(cmd_tbl_t *cmdtp, int flag, int argc,
+			 char *const argv[])
+{
+	if (argc != 2)
+		goto usage;
+
+	if (strncmp(argv[1], "hw", 2) == 0) {
+		/* 1-bit HW ECC */
+		printf("Switching to 1-bit HW ECC\n");
+		fsmc_nand_switch_ecc(1);
+	} else if (strncmp(argv[1], "bch4", 2) == 0) {
+		/* 4-bit SW ECC BCH4 */
+		printf("Switching to 4-bit SW ECC (BCH4)\n");
+		fsmc_nand_switch_ecc(4);
+	} else {
+		goto usage;
+	}
+
+	return 0;
+
+usage:
+	printf("Usage: nandecc %s\n", cmdtp->usage);
+	return 1;
+}
+
+U_BOOT_CMD(
+	nandecc, 2, 0,	do_switch_ecc,
+	"switch NAND ECC calculation algorithm",
+	"hw|bch4 - Switch between NAND hardware 1-bit HW and"
+	" 4-bit SW BCH\n"
+);
+#endif