nand: Move the sub-page read support enable to a flag

[u-boot] / include / linux / mtd / nand.h

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index c06866b061c6cd516285800b8a12ec25e2e358be..e9e904523a5acca89277321383521429e33f0930 100644 (file)
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -194,6 +194,9 @@ typedef enum {
 /* Device behaves just like nand, but is readonly */
 #define NAND_ROM               0x00000800
 
+/* Device supports subpage reads */
+#define NAND_SUBPAGE_READ       0x00001000
+
 /* Options valid for Samsung large page devices */
 #define NAND_SAMSUNG_LP_OPTIONS \
        (NAND_NO_PADDING | NAND_CACHEPRG | NAND_COPYBACK)
@@ -203,9 +206,7 @@ typedef enum {
 #define NAND_MUST_PAD(chip) (!(chip->options & NAND_NO_PADDING))
 #define NAND_HAS_CACHEPROG(chip) ((chip->options & NAND_CACHEPRG))
 #define NAND_HAS_COPYBACK(chip) ((chip->options & NAND_COPYBACK))
-/* Large page NAND with SOFT_ECC should support subpage reads */
-#define NAND_SUBPAGE_READ(chip) ((chip->ecc.mode == NAND_ECC_SOFT) \
-                                       && (chip->page_shift > 9))
+#define NAND_HAS_SUBPAGE_READ(chip) ((chip->options & NAND_SUBPAGE_READ))
 
 /* Non chip related options */
 /*
@@ -390,9 +391,10 @@ struct nand_ecc_ctrl {
  * consecutive order.
  */
 struct nand_buffers {
-       uint8_t ecccalc[NAND_MAX_OOBSIZE];
-       uint8_t ecccode[NAND_MAX_OOBSIZE];
-       uint8_t databuf[NAND_MAX_PAGESIZE + NAND_MAX_OOBSIZE];
+       uint8_t ecccalc[ALIGN(NAND_MAX_OOBSIZE, ARCH_DMA_MINALIGN)];
+       uint8_t ecccode[ALIGN(NAND_MAX_OOBSIZE, ARCH_DMA_MINALIGN)];
+       uint8_t databuf[ALIGN(NAND_MAX_PAGESIZE + NAND_MAX_OOBSIZE,
+                             ARCH_DMA_MINALIGN)];
 };
 
 /**