mtd: rawnand: fsmc: Keep bank enable bit set

[uclinux-h8/linux.git] / drivers / mtd / nand / raw / fsmc_nand.c

diff --git a/drivers/mtd/nand/raw/fsmc_nand.c b/drivers/mtd/nand/raw/fsmc_nand.c
index 325b441..c9149a3 100644 (file)
--- a/drivers/mtd/nand/raw/fsmc_nand.c
+++ b/drivers/mtd/nand/raw/fsmc_nand.c
@@ -593,23 +593,6 @@ static void fsmc_write_buf_dma(struct fsmc_nand_data *host, const u8 *buf,
        dma_xfer(host, (void *)buf, len, DMA_TO_DEVICE);
 }
 
-/* fsmc_select_chip - assert or deassert nCE */
-static void fsmc_ce_ctrl(struct fsmc_nand_data *host, bool assert)
-{
-       u32 pc = readl(host->regs_va + FSMC_PC);
-
-       if (!assert)
-               writel_relaxed(pc & ~FSMC_ENABLE, host->regs_va + FSMC_PC);
-       else
-               writel_relaxed(pc | FSMC_ENABLE, host->regs_va + FSMC_PC);
-
-       /*
-        * nCE line changes must be applied before returning from this
-        * function.
-        */
-       mb();
-}
-
 /*
  * fsmc_exec_op - hook called by the core to execute NAND operations
  *
@@ -627,8 +610,6 @@ static int fsmc_exec_op(struct nand_chip *chip, const struct nand_operation *op,
 
        pr_debug("Executing operation [%d instructions]:\n", op->ninstrs);
 
-       fsmc_ce_ctrl(host, true);
-
        for (op_id = 0; op_id < op->ninstrs; op_id++) {
                instr = &op->instrs[op_id];
 
@@ -686,8 +667,6 @@ static int fsmc_exec_op(struct nand_chip *chip, const struct nand_operation *op,
                }
        }
 
-       fsmc_ce_ctrl(host, false);
-
        return ret;
 }