sunxi_nand_spl: clear status flags in SPL implementation

[u-boot] / drivers / mtd / nand / nand_spl_simple.c

diff --git a/drivers/mtd/nand/nand_spl_simple.c b/drivers/mtd/nand/nand_spl_simple.c
index cead4b506cf101cfa159b1f47b09690d7d657d07..e69f66226da3c116f9b367ec664484387ddbfa47 100644 (file)
--- a/drivers/mtd/nand/nand_spl_simple.c
+++ b/drivers/mtd/nand/nand_spl_simple.c
@@ -78,7 +78,7 @@ static int nand_command(int block, int page, uint32_t offs,
        }
 
        /* Shift the offset from byte addressing to word addressing. */
-       if (this->options & NAND_BUSWIDTH_16)
+       if ((this->options & NAND_BUSWIDTH_16) && !nand_opcode_8bits(cmd))
                offs >>= 1;
 
        /* Begin command latch cycle */
@@ -115,6 +115,7 @@ static int nand_command(int block, int page, uint32_t offs,
 static int nand_is_bad_block(int block)
 {
        struct nand_chip *this = mtd.priv;
+       u_char bb_data[2];
 
        nand_command(block, 0, CONFIG_SYS_NAND_BAD_BLOCK_POS,
                NAND_CMD_READOOB);
@@ -123,10 +124,12 @@ static int nand_is_bad_block(int block)
         * Read one byte (or two if it's a 16 bit chip).
         */
        if (this->options & NAND_BUSWIDTH_16) {
-               if (readw(this->IO_ADDR_R) != 0xffff)
+               this->read_buf(&mtd, bb_data, 2);
+               if (bb_data[0] != 0xff || bb_data[1] != 0xff)
                        return 1;
        } else {
-               if (readb(this->IO_ADDR_R) != 0xff)
+               this->read_buf(&mtd, bb_data, 1);
+               if (bb_data[0] != 0xff)
                        return 1;
        }