mxc nand: modify send_page to send all pages, not only one

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

1 files changed, 20 insertions, 25 deletions

diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 67ddc35ca7bc..1131ad126fd2 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -228,16 +228,25 @@ static void send_addr(struct mxc_nand_host *host, uint16_t addr, int islast)
         wait_op_done(host, TROP_US_DELAY, islast);
 }
 
-static void send_page(struct mxc_nand_host *host, uint8_t buf_id,
-                unsigned int ops)
+static void send_page(struct mxc_nand_host *host, unsigned int ops)
 {
-        /* NANDFC buffer 0 is used for page read/write */
-        writew(buf_id, host->regs + NFC_BUF_ADDR);
+        int bufs, i;
 
-        writew(ops, host->regs + NFC_CONFIG2);
+        if (host->pagesize_2k)
+                bufs = 4;
+        else
+                bufs = 1;
 
-        /* Wait for operation to complete */
-        wait_op_done(host, TROP_US_DELAY, true);
+        for (i = 0; i < bufs; i++) {
+
+                /* NANDFC buffer 0 is used for page read/write */
+                writew(i, host->regs + NFC_BUF_ADDR);
+
+                writew(ops, host->regs + NFC_CONFIG2);
+
+                /* Wait for operation to complete */
+                wait_op_done(host, TROP_US_DELAY, true);
+        }
 }
 
 /* Request the NANDFC to perform a read of the NAND device ID. */
@@ -565,16 +574,10 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
                 send_cmd(host, command, false);
                 mxc_do_addr_cycle(mtd, column, page_addr);
 
-                if (host->pagesize_2k) {
-                        /* send read confirm command */
+                if (host->pagesize_2k)
                         send_cmd(host, NAND_CMD_READSTART, true);
-                        /* read for each AREA */
-                        send_page(host, 0, NFC_OUTPUT);
-                        send_page(host, 1, NFC_OUTPUT);
-                        send_page(host, 2, NFC_OUTPUT);
-                        send_page(host, 3, NFC_OUTPUT);
-                } else
-                        send_page(host, 0, NFC_OUTPUT);
+
+                send_page(host, NFC_OUTPUT);
 
                 memcpy(host->data_buf, host->regs + MAIN_AREA0, mtd->writesize);
                 copy_spare(mtd, true);
@@ -614,15 +617,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
         case NAND_CMD_PAGEPROG:
                 memcpy(host->regs + MAIN_AREA0, host->data_buf, mtd->writesize);
                 copy_spare(mtd, false);
-                send_page(host, 0, NFC_INPUT);
-
-                if (host->pagesize_2k) {
-                        /* data in 4 areas datas */
-                        send_page(host, 1, NFC_INPUT);
-                        send_page(host, 2, NFC_INPUT);
-                        send_page(host, 3, NFC_INPUT);
-                }
-
+                send_page(host, NFC_INPUT);
                 send_cmd(host, command, true);
                 mxc_do_addr_cycle(mtd, column, page_addr);
                 break;