diff options
| author | Kevin Cernekee <cernekee@gmail.com> | 2014-11-25 16:49:53 -0800 |
|---|---|---|
| committer | Florian Fainelli <f.fainelli@gmail.com> | 2015-05-28 21:00:20 -0700 |
| commit | fbf4e262bb505a76c5cba227fcb2f4ea657d9921 (patch) | |
| tree | 206e3a70112f10633e5504762ed6e6da33258415 /drivers/bus/brcmstb_gisb.c | |
| parent | 7dc95b40f599293aedf30432749ad25b51549041 (diff) | |
| download | linux-fbf4e262bb505a76c5cba227fcb2f4ea657d9921.tar.bz2 | |
bus: brcmstb_gisb: Honor the "big-endian" and "native-endian" DT properties
On chips strapped for BE, we'll need to use ioread32be/iowrite32be instead of
ioread32/iowrite32.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Diffstat (limited to 'drivers/bus/brcmstb_gisb.c')
| -rw-r--r-- | drivers/bus/brcmstb_gisb.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/bus/brcmstb_gisb.c b/drivers/bus/brcmstb_gisb.c index 738612c45266..f364fa4d24eb 100644 --- a/drivers/bus/brcmstb_gisb.c +++ b/drivers/bus/brcmstb_gisb.c @@ -91,6 +91,7 @@ static const int gisb_offsets_bcm7445[] = { struct brcmstb_gisb_arb_device { void __iomem *base; const int *gisb_offsets; + bool big_endian; struct mutex lock; struct list_head next; u32 valid_mask; @@ -108,7 +109,10 @@ static u32 gisb_read(struct brcmstb_gisb_arb_device *gdev, int reg) if (offset == -1) return 1; - return ioread32(gdev->base + offset); + if (gdev->big_endian) + return ioread32be(gdev->base + offset); + else + return ioread32(gdev->base + offset); } static void gisb_write(struct brcmstb_gisb_arb_device *gdev, u32 val, int reg) @@ -117,7 +121,11 @@ static void gisb_write(struct brcmstb_gisb_arb_device *gdev, u32 val, int reg) if (offset == -1) return; - iowrite32(val, gdev->base + reg); + + if (gdev->big_endian) + iowrite32be(val, gdev->base + reg); + else + iowrite32(val, gdev->base + reg); } static ssize_t gisb_arb_get_timeout(struct device *dev, @@ -296,6 +304,7 @@ static int __init brcmstb_gisb_arb_probe(struct platform_device *pdev) return -EINVAL; } gdev->gisb_offsets = of_id->data; + gdev->big_endian = of_device_is_big_endian(dn); err = devm_request_irq(&pdev->dev, timeout_irq, brcmstb_gisb_timeout_handler, 0, pdev->name, |