diff options
| author | Yunhui Cui <yunhui.cui@nxp.com> | 2016-03-10 03:33:40 (GMT) |
|---|---|---|
| committer | Xie Xiaobo <xiaobo.xie@nxp.com> | 2017-09-25 07:25:31 (GMT) |
| commit | 68fed1e59c93d44bdbc5803616a5340d085ef858 (patch) | |
| tree | e19fd772c2e4c326bb921dd659a60eb0cbd9e7c4 /drivers/mtd | |
| parent | 383e0ab2de49b36bda8b14c8b99b4a9220382979 (diff) | |
| download | linux-68fed1e59c93d44bdbc5803616a5340d085ef858.tar.xz | |
mtd: fsl-quadspi: add multi flash chip R/W on ls2080a
There is a hardware feature that qspi_amba_base is added
internally by SOC design on ls2080a. so memmap_phy need not
be added in driver. If memmap_phy is added, the flash A1
addr space is [0, memmap_phy] which far more than flash size.
The AMBA memory will be divided into four parts and assign to
every chipselect. Every channel will has two valid chipselects.
Signed-off-by: Yunhui Cui <yunhui.cui@nxp.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/spi-nor/fsl-quadspi.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/mtd/spi-nor/fsl-quadspi.c b/drivers/mtd/spi-nor/fsl-quadspi.c index b37b55d..f2379d18 100644 --- a/drivers/mtd/spi-nor/fsl-quadspi.c +++ b/drivers/mtd/spi-nor/fsl-quadspi.c @@ -703,11 +703,17 @@ static void fsl_qspi_set_map_addr(struct fsl_qspi *q) { int nor_size = q->nor_size; void __iomem *base = q->iobase; + u32 mem_base; - qspi_writel(q, nor_size + q->memmap_phy, base + QUADSPI_SFA1AD); - qspi_writel(q, nor_size * 2 + q->memmap_phy, base + QUADSPI_SFA2AD); - qspi_writel(q, nor_size * 3 + q->memmap_phy, base + QUADSPI_SFB1AD); - qspi_writel(q, nor_size * 4 + q->memmap_phy, base + QUADSPI_SFB2AD); + if (has_added_amba_base_internal(q)) + mem_base = 0x0; + else + mem_base = q->memmap_phy; + + qspi_writel(q, nor_size + mem_base, base + QUADSPI_SFA1AD); + qspi_writel(q, nor_size * 2 + mem_base, base + QUADSPI_SFA2AD); + qspi_writel(q, nor_size * 3 + mem_base, base + QUADSPI_SFB1AD); + qspi_writel(q, nor_size * 4 + mem_base, base + QUADSPI_SFB2AD); } /* |