mxc_nand: merge send_read_page and send_prog_page

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index dafa1f0..8aa8a42 100644 (file)
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -226,12 +226,10 @@ static void send_addr(struct mxc_nand_host *host, uint16_t addr, int islast)
        wait_op_done(host, TROP_US_DELAY, addr, islast);
 }
 
-/* This function requests the NANDFC to initate the transfer
- * of data currently in the NANDFC RAM buffer to the NAND device. */
-static void send_prog_page(struct mxc_nand_host *host, uint8_t buf_id,
-                       int spare_only)
+static void send_page(struct mxc_nand_host *host, uint8_t buf_id,
+                       int spare_only, unsigned int ops)
 {
-       DEBUG(MTD_DEBUG_LEVEL3, "send_prog_page (%d)\n", spare_only);
+       DEBUG(MTD_DEBUG_LEVEL3, "send_page (%d)\n", spare_only);
 
        /* NANDFC buffer 0 is used for page read/write */
        writew(buf_id, host->regs + NFC_BUF_ADDR);
@@ -246,33 +244,7 @@ static void send_prog_page(struct mxc_nand_host *host, uint8_t buf_id,
                writew(config1, host->regs + NFC_CONFIG1);
        }
 
-       writew(NFC_INPUT, host->regs + NFC_CONFIG2);
-
-       /* Wait for operation to complete */
-       wait_op_done(host, TROP_US_DELAY, spare_only, true);
-}
-
-/* Requests NANDFC to initated the transfer of data from the
- * NAND device into in the NANDFC ram buffer. */
-static void send_read_page(struct mxc_nand_host *host, uint8_t buf_id,
-               int spare_only)
-{
-       DEBUG(MTD_DEBUG_LEVEL3, "send_read_page (%d)\n", spare_only);
-
-       /* NANDFC buffer 0 is used for page read/write */
-       writew(buf_id, host->regs + NFC_BUF_ADDR);
-
-       /* Configure spare or page+spare access */
-       if (!host->pagesize_2k) {
-               uint32_t config1 = readw(host->regs + NFC_CONFIG1);
-               if (spare_only)
-                       config1 |= NFC_SP_EN;
-               else
-                       config1 &= ~NFC_SP_EN;
-               writew(config1, host->regs + NFC_CONFIG1);
-       }
-
-       writew(NFC_OUTPUT, host->regs + NFC_CONFIG2);
+       writew(ops, host->regs + NFC_CONFIG2);
 
        /* Wait for operation to complete */
        wait_op_done(host, TROP_US_DELAY, spare_only, true);
@@ -756,13 +728,13 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
                break;
 
        case NAND_CMD_PAGEPROG:
-               send_prog_page(host, 0, host->spare_only);
+               send_page(host, 0, host->spare_only, NFC_INPUT);
 
                if (host->pagesize_2k) {
                        /* data in 4 areas datas */
-                       send_prog_page(host, 1, host->spare_only);
-                       send_prog_page(host, 2, host->spare_only);
-                       send_prog_page(host, 3, host->spare_only);
+                       send_page(host, 1, host->spare_only, NFC_INPUT);
+                       send_page(host, 2, host->spare_only, NFC_INPUT);
+                       send_page(host, 3, host->spare_only, NFC_INPUT);
                }
 
                break;
@@ -827,12 +799,12 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
                        /* send read confirm command */
                        send_cmd(host, NAND_CMD_READSTART, true);
                        /* read for each AREA */
-                       send_read_page(host, 0, host->spare_only);
-                       send_read_page(host, 1, host->spare_only);
-                       send_read_page(host, 2, host->spare_only);
-                       send_read_page(host, 3, host->spare_only);
+                       send_page(host, 0, host->spare_only, NFC_OUTPUT);
+                       send_page(host, 1, host->spare_only, NFC_OUTPUT);
+                       send_page(host, 2, host->spare_only, NFC_OUTPUT);
+                       send_page(host, 3, host->spare_only, NFC_OUTPUT);
                } else
-                       send_read_page(host, 0, host->spare_only);
+                       send_page(host, 0, host->spare_only, NFC_OUTPUT);
                break;
 
        case NAND_CMD_READID: