diff options
| author | Boris Brezillon <boris.brezillon@bootlin.com> | 2018-07-09 22:09:28 +0200 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2018-07-18 10:10:17 +0200 |
| commit | c5b76d8dd2bf318d9e6b4b3a480b9e96c01b31c8 (patch) | |
| tree | c0c37faf307f26d78cd1d0ef045407810d38ca81 /drivers/mtd/nand/raw/davinci_nand.c | |
| parent | 88a40e7dca00fef96e4396c3e8c0077ab96b15a6 (diff) | |
| download | linux-c5b76d8dd2bf318d9e6b4b3a480b9e96c01b31c8.tar.bz2 | |
mtd: rawnand: davinci: Stop doing iomem pointer <-> u32 conversions
There is no point in doing this sort of conversion since we can
replace |= by += operations which are perfectly valid on pointers.
This is done in preparation of COMPILE_TEST addition to the NAND_DAVINCI
Kconfig entry, since building for x86 generates several warnings because
of inappropriate u32 <-> void * conversions (pointers are 64-bit large
on x86_64).
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Diffstat (limited to 'drivers/mtd/nand/raw/davinci_nand.c')
| -rw-r--r-- | drivers/mtd/nand/raw/davinci_nand.c | 23 |
1 files changed, 10 insertions, 13 deletions
diff --git a/drivers/mtd/nand/raw/davinci_nand.c b/drivers/mtd/nand/raw/davinci_nand.c index cd12e5abafde..9cd36a750965 100644 --- a/drivers/mtd/nand/raw/davinci_nand.c +++ b/drivers/mtd/nand/raw/davinci_nand.c @@ -60,8 +60,7 @@ struct davinci_nand_info { void __iomem *base; void __iomem *vaddr; - uint32_t ioaddr; - uint32_t current_cs; + void __iomem *current_cs; uint32_t mask_chipsel; uint32_t mask_ale; @@ -102,17 +101,17 @@ static void nand_davinci_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct davinci_nand_info *info = to_davinci_nand(mtd); - uint32_t addr = info->current_cs; + void __iomem *addr = info->current_cs; struct nand_chip *nand = mtd_to_nand(mtd); /* Did the control lines change? */ if (ctrl & NAND_CTRL_CHANGE) { if ((ctrl & NAND_CTRL_CLE) == NAND_CTRL_CLE) - addr |= info->mask_cle; + addr += info->mask_cle; else if ((ctrl & NAND_CTRL_ALE) == NAND_CTRL_ALE) - addr |= info->mask_ale; + addr += info->mask_ale; - nand->IO_ADDR_W = (void __iomem __force *)addr; + nand->IO_ADDR_W = addr; } if (cmd != NAND_CMD_NONE) @@ -122,14 +121,14 @@ static void nand_davinci_hwcontrol(struct mtd_info *mtd, int cmd, static void nand_davinci_select_chip(struct mtd_info *mtd, int chip) { struct davinci_nand_info *info = to_davinci_nand(mtd); - uint32_t addr = info->ioaddr; + + info->current_cs = info->vaddr; /* maybe kick in a second chipselect */ if (chip > 0) - addr |= info->mask_chipsel; - info->current_cs = addr; + info->current_cs += info->mask_chipsel; - info->chip.IO_ADDR_W = (void __iomem __force *)addr; + info->chip.IO_ADDR_W = info->current_cs; info->chip.IO_ADDR_R = info->chip.IO_ADDR_W; } @@ -680,9 +679,7 @@ static int nand_davinci_probe(struct platform_device *pdev) info->chip.bbt_md = pdata->bbt_md; info->timing = pdata->timing; - info->ioaddr = (uint32_t __force) vaddr; - - info->current_cs = info->ioaddr; + info->current_cs = info->vaddr; info->core_chipsel = pdata->core_chipsel; info->mask_chipsel = pdata->mask_chipsel; |