mtd: nand: omap: add support for BCH16_ECC - GPMC driver updates

This patch add support for BCH16_ECC in GPMC (controller) driver:
- extends configuration space to include BCH16 registers
- extends parsing of DT binding for selecting BCH16 ecc-scheme

Signed-off-by: Pekon Gupta <pekon@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/platform_data/mtd-nand-omap2.h b/include/linux/platform_data/mtd-nand-omap2.h
index 3e9dd6676b97..660c029d694f 100644
--- a/include/linux/platform_data/mtd-nand-omap2.h
+++ b/include/linux/platform_data/mtd-nand-omap2.h
@@ -31,6 +31,8 @@ enum omap_ecc {
         OMAP_ECC_BCH8_CODE_HW_DETECTION_SW,
         /* 8-bit  ECC calculation by GPMC, Error detection by ELM */
         OMAP_ECC_BCH8_CODE_HW,
+        /* 16-bit ECC calculation by GPMC, Error detection by ELM */
+        OMAP_ECC_BCH16_CODE_HW,
 };
 
 struct gpmc_nand_regs {
@@ -50,6 +52,9 @@ struct gpmc_nand_regs {
         void __iomem    *gpmc_bch_result1[GPMC_BCH_NUM_REMAINDER];
         void __iomem    *gpmc_bch_result2[GPMC_BCH_NUM_REMAINDER];
         void __iomem    *gpmc_bch_result3[GPMC_BCH_NUM_REMAINDER];
+        void __iomem    *gpmc_bch_result4[GPMC_BCH_NUM_REMAINDER];
+        void __iomem    *gpmc_bch_result5[GPMC_BCH_NUM_REMAINDER];
+        void __iomem    *gpmc_bch_result6[GPMC_BCH_NUM_REMAINDER];
 };
 
 struct omap_nand_platform_data {