diff options
Diffstat (limited to 'drivers/mtd/nand/orion_nand.c')
| -rw-r--r-- | drivers/mtd/nand/orion_nand.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c index f59c07427af3..da6e75343052 100644 --- a/drivers/mtd/nand/orion_nand.c +++ b/drivers/mtd/nand/orion_nand.c @@ -60,7 +60,13 @@ static void orion_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) } buf64 = (uint64_t *)buf; while (i < len/8) { - uint64_t x; + /* + * Since GCC has no proper constraint (PR 43518) + * force x variable to r2/r3 registers as ldrd instruction + * requires first register to be even. + */ + register uint64_t x asm ("r2"); + asm volatile ("ldrd\t%0, [%1]" : "=&r" (x) : "r" (io_base)); buf64[i++] = x; } @@ -74,6 +80,7 @@ static int __init orion_nand_probe(struct platform_device *pdev) struct mtd_info *mtd; struct nand_chip *nc; struct orion_nand_data *board; + struct resource *res; void __iomem *io_base; int ret = 0; #ifdef CONFIG_MTD_PARTITIONS @@ -89,8 +96,13 @@ static int __init orion_nand_probe(struct platform_device *pdev) } mtd = (struct mtd_info *)(nc + 1); - io_base = ioremap(pdev->resource[0].start, - pdev->resource[0].end - pdev->resource[0].start + 1); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + ret = -ENODEV; + goto no_res; + } + + io_base = ioremap(res->start, resource_size(res)); if (!io_base) { printk(KERN_ERR "orion_nand: ioremap failed\n"); ret = -EIO; @@ -114,6 +126,9 @@ static int __init orion_nand_probe(struct platform_device *pdev) if (board->width == 16) nc->options |= NAND_BUSWIDTH_16; + if (board->dev_ready) + nc->dev_ready = board->dev_ready; + platform_set_drvdata(pdev, mtd); if (nand_scan(mtd, 1)) { |