mxc_nand: Get rid of pagesize_2k flag

Later versions of this controller also allow 4k pagesize,
so use mtd->writesize instead of a flag.

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 c84fd6c..09b9aab 100644 (file)
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -101,7 +101,6 @@ struct mxc_nand_host {
        void __iomem            *base;
        void __iomem            *regs;
        int                     status_request;
-       int                     pagesize_2k;
        struct clk              *clk;
        int                     clk_act;
        int                     irq;
@@ -214,11 +213,13 @@ 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, unsigned int ops)
+static void send_page(struct mtd_info *mtd, unsigned int ops)
 {
+       struct nand_chip *nand_chip = mtd->priv;
+       struct mxc_nand_host *host = nand_chip->priv;
        int bufs, i;
 
-       if (host->pagesize_2k)
+       if (mtd->writesize > 512)
                bufs = 4;
        else
                bufs = 1;
@@ -490,7 +491,7 @@ static void mxc_do_addr_cycle(struct mtd_info *mtd, int column, int page_addr)
                 * the full page.
                 */
                send_addr(host, 0, page_addr == -1);
-               if (host->pagesize_2k)
+               if (mtd->writesize > 512)
                        /* another col addr cycle for 2k page */
                        send_addr(host, 0, false);
        }
@@ -500,7 +501,7 @@ static void mxc_do_addr_cycle(struct mtd_info *mtd, int column, int page_addr)
                /* paddr_0 - p_addr_7 */
                send_addr(host, (page_addr & 0xff), false);
 
-               if (host->pagesize_2k) {
+               if (mtd->writesize > 512) {
                        if (mtd->size >= 0x10000000) {
                                /* paddr_8 - paddr_15 */
                                send_addr(host, (page_addr >> 8) & 0xff, false);
@@ -554,16 +555,16 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
                else
                        host->buf_start = column + mtd->writesize;
 
-               if (host->pagesize_2k)
+               if (mtd->writesize > 512)
                        command = NAND_CMD_READ0; /* only READ0 is valid */
 
                send_cmd(host, command, false);
                mxc_do_addr_cycle(mtd, column, page_addr);
 
-               if (host->pagesize_2k)
+               if (mtd->writesize > 512)
                        send_cmd(host, NAND_CMD_READSTART, true);
 
-               send_page(host, NFC_OUTPUT);
+               send_page(mtd, NFC_OUTPUT);
 
                memcpy(host->data_buf, host->main_area0, mtd->writesize);
                copy_spare(mtd, true);
@@ -578,7 +579,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
                         * pointer to spare area, we must write the whole page
                         * including OOB together.
                         */
-                       if (host->pagesize_2k)
+                       if (mtd->writesize > 512)
                                /* call ourself to read a page */
                                mxc_nand_command(mtd, NAND_CMD_READ0, 0,
                                                page_addr);
@@ -586,13 +587,13 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
                        host->buf_start = column;
 
                        /* Set program pointer to spare region */
-                       if (!host->pagesize_2k)
+                       if (mtd->writesize == 512)
                                send_cmd(host, NAND_CMD_READOOB, false);
                } else {
                        host->buf_start = column;
 
                        /* Set program pointer to page start */
-                       if (!host->pagesize_2k)
+                       if (mtd->writesize == 512)
                                send_cmd(host, NAND_CMD_READ0, false);
                }
 
@@ -603,7 +604,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
        case NAND_CMD_PAGEPROG:
                memcpy(host->main_area0, host->data_buf, mtd->writesize);
                copy_spare(mtd, false);
-               send_page(host, NFC_INPUT);
+               send_page(mtd, NFC_INPUT);
                send_cmd(host, command, true);
                mxc_do_addr_cycle(mtd, column, page_addr);
                break;
@@ -745,10 +746,8 @@ static int __init mxcnd_probe(struct platform_device *pdev)
                goto escan;
        }
 
-       if (mtd->writesize == 2048) {
-               host->pagesize_2k = 1;
+       if (mtd->writesize == 2048)
                this->ecc.layout = &nand_hw_eccoob_largepage;
-       }
 
        /* second phase scan */
        if (nand_scan_tail(mtd)) {