4 files changed, 49 insertions, 3 deletions

diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index a66cfc1..8669432 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -24,9 +24,9 @@
 
 /* Register access macros */
 #define ecc_readl(add, reg)				\
-	readl(AT91_BASE_SYS + add + ATMEL_ECC_##reg)
+	readl(add + ATMEL_ECC_##reg)
 #define ecc_writel(add, reg, value)			\
-	writel((value), AT91_BASE_SYS + add + ATMEL_ECC_##reg)
+	writel((value), add + ATMEL_ECC_##reg)
 
 #include "atmel_nand_ecc.h"	/* Hardware ECC registers */
 
@@ -1156,6 +1156,7 @@ int atmel_hwecc_nand_init_param(struct nand_chip *nand, struct mtd_info *mtd)
 	nand->ecc.hwctl = atmel_nand_hwctl;
 	nand->ecc.read_page = atmel_nand_read_page;
 	nand->ecc.bytes = 4;
+	nand->ecc.strength = 4;
 
 	if (nand->ecc.mode == NAND_ECC_HW) {
 		/* ECC is calculated for the whole page (1 step) */
diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c
index 7be1f86..c90a3a7 100644
--- a/drivers/mtd/nand/mxs_nand.c
+++ b/drivers/mtd/nand/mxs_nand.c
@@ -152,7 +152,7 @@ static inline uint32_t mxs_nand_get_ecc_strength(uint32_t page_data_size,
 	int max_ecc_strength_supported;
 
 	/* Refer to Chapter 17 for i.MX6DQ, Chapter 18 for i.MX6SX */
-	if (is_cpu_type(MXC_CPU_MX6SX) || is_soc_type(MXC_SOC_MX7))
+	if (is_mx6sx() || is_mx7())
 		max_ecc_strength_supported = 62;
 	else
 		max_ecc_strength_supported = 40;
diff --git a/drivers/mtd/nand/nand.c b/drivers/mtd/nand/nand.c
index f449316..0551241 100644
--- a/drivers/mtd/nand/nand.c
+++ b/drivers/mtd/nand/nand.c
@@ -9,6 +9,7 @@
 #include <common.h>
 #include <nand.h>
 #include <errno.h>
+#include <linux/mtd/concat.h>
 
 #ifndef CONFIG_SYS_NAND_BASE_LIST
 #define CONFIG_SYS_NAND_BASE_LIST { CONFIG_SYS_NAND_BASE }
@@ -92,6 +93,44 @@ static void nand_init_chip(int i)
 }
 #endif
 
+#ifdef CONFIG_MTD_CONCAT
+static void create_mtd_concat(void)
+{
+	struct mtd_info *nand_info_list[CONFIG_SYS_MAX_NAND_DEVICE];
+	int nand_devices_found = 0;
+	int i;
+
+	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) {
+		if (nand_info[i] != NULL) {
+			nand_info_list[nand_devices_found] = nand_info[i];
+			nand_devices_found++;
+		}
+	}
+	if (nand_devices_found > 1) {
+		struct mtd_info *mtd;
+		char c_mtd_name[16];
+
+		/*
+		 * We detected multiple devices. Concatenate them together.
+		 */
+		sprintf(c_mtd_name, "nand%d", nand_devices_found);
+		mtd = mtd_concat_create(nand_info_list, nand_devices_found,
+					c_mtd_name);
+
+		if (mtd == NULL)
+			return;
+
+		nand_register(nand_devices_found, mtd);
+	}
+
+	return;
+}
+#else
+static void create_mtd_concat(void)
+{
+}
+#endif
+
 void nand_init(void)
 {
 #ifdef CONFIG_SYS_NAND_SELF_INIT
@@ -112,4 +151,6 @@ void nand_init(void)
 	board_nand_select_device(mtd_to_nand(nand_info[nand_curr_device]),
 				 nand_curr_device);
 #endif
+
+	create_mtd_concat();
 }
diff --git a/drivers/mtd/nand/omap_gpmc.c b/drivers/mtd/nand/omap_gpmc.c
index 37c4341..67f293d 100644
--- a/drivers/mtd/nand/omap_gpmc.c
+++ b/drivers/mtd/nand/omap_gpmc.c
@@ -917,6 +917,10 @@ int __maybe_unused omap_nand_switch_ecc(uint32_t hardware, uint32_t eccstrength)
 			err = omap_select_ecc_scheme(nand,
 					OMAP_ECC_BCH8_CODE_HW,
 					mtd->writesize, mtd->oobsize);
+		} else if (eccstrength == 16) {
+			err = omap_select_ecc_scheme(nand,
+					OMAP_ECC_BCH16_CODE_HW,
+					mtd->writesize, mtd->oobsize);
 		} else {
 			printf("nand: error: unsupported ECC scheme\n");
 			return -EINVAL;