mtd: mxc_nand: fix several sparse warnings about incorrect address space

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 1041bb1..ec5ba8b 100644 (file)
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -181,8 +181,8 @@ struct mxc_nand_host {
        struct nand_chip        nand;
        struct device           *dev;
 
-       void                    *spare0;
-       void                    *main_area0;
+       void __iomem            *spare0;
+       void __iomem            *main_area0;
 
        void __iomem            *base;
        void __iomem            *regs;
@@ -519,7 +519,7 @@ static void send_read_id_v3(struct mxc_nand_host *host)
 
        wait_op_done(host, true);
 
-       memcpy(host->data_buf, host->main_area0, 16);
+       memcpy_fromio(host->data_buf, host->main_area0, 16);
 }
 
 /* Request the NANDFC to perform a read of the NAND device ID. */
@@ -535,7 +535,7 @@ static void send_read_id_v1_v2(struct mxc_nand_host *host)
        /* Wait for operation to complete */
        wait_op_done(host, true);
 
-       memcpy(host->data_buf, host->main_area0, 16);
+       memcpy_fromio(host->data_buf, host->main_area0, 16);
 
        if (this->options & NAND_BUSWIDTH_16) {
                /* compress the ID info */
@@ -790,23 +790,23 @@ static void copy_spare(struct mtd_info *mtd, bool bfrom)
        u16 i, j;
        u16 n = mtd->writesize >> 9;
        u8 *d = host->data_buf + mtd->writesize;
-       u8 *s = host->spare0;
+       u8 __iomem *s = host->spare0;
        u16 t = host->devtype_data->spare_len;
 
        j = (mtd->oobsize / n >> 1) << 1;
 
        if (bfrom) {
                for (i = 0; i < n - 1; i++)
-                       memcpy(d + i * j, s + i * t, j);
+                       memcpy_fromio(d + i * j, s + i * t, j);
 
                /* the last section */
-               memcpy(d + i * j, s + i * t, mtd->oobsize - i * j);
+               memcpy_fromio(d + i * j, s + i * t, mtd->oobsize - i * j);
        } else {
                for (i = 0; i < n - 1; i++)
-                       memcpy(&s[i * t], &d[i * j], j);
+                       memcpy_toio(&s[i * t], &d[i * j], j);
 
                /* the last section */
-               memcpy(&s[i * t], &d[i * j], mtd->oobsize - i * j);
+               memcpy_toio(&s[i * t], &d[i * j], mtd->oobsize - i * j);
        }
 }
 
@@ -1070,7 +1070,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
 
                host->devtype_data->send_page(mtd, NFC_OUTPUT);
 
-               memcpy(host->data_buf, host->main_area0, mtd->writesize);
+               memcpy_fromio(host->data_buf, host->main_area0, mtd->writesize);
                copy_spare(mtd, true);
                break;
 
@@ -1086,7 +1086,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
                break;
 
        case NAND_CMD_PAGEPROG:
-               memcpy(host->main_area0, host->data_buf, mtd->writesize);
+               memcpy_toio(host->main_area0, host->data_buf, mtd->writesize);
                copy_spare(mtd, false);
                host->devtype_data->send_page(mtd, NFC_INPUT);
                host->devtype_data->send_cmd(host, command, true);