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authorArnd Bergmann <arnd@arndb.de>2015-06-01 18:54:31 +0300
committerArnd Bergmann <arnd@arndb.de>2015-06-01 18:54:31 +0300
commitc9531b4f1535f88fd82e45d1ffbfa61dbee26fb6 (patch)
tree236d15d1d1baad66a338ab4db659c8bd07359a5e /drivers/bus
parent4fd8a5a5ac6bc042d9de8847e6b8e9182b9c566c (diff)
parentb35d2e561ea711626749fcb511637f0e4604ff18 (diff)
downloadlinux-c9531b4f1535f88fd82e45d1ffbfa61dbee26fb6.tar.xz
Merge tag 'arm-soc/for-4.2/soc-part2' of http://github.com/broadcom/stblinux into next/soc
Merge "changes for Broadcom SoCs": - Dan fixes an error path in the BCM63xx SMP code - Ray adds the relevant Kconfig selects to enable the Broadcom NAND driver on Cygnus - Kevin provides a change to the Broadcom GISB arbiter driver to make it work with MIPS-based big-endian STB SoCs (this was a long-standing change that had dependencies on code in drivers/of/*) - Gregory enables the use of GPIOLIB for brcmstb SoCs and bumps the number of GPIOs for these platforms * tag 'arm-soc/for-4.2/soc-part2' of http://github.com/broadcom/stblinux: ARM: brcmstb: Add default gpio number ARM: brcmstb: Select ARCH_WANT_OPTIONAL_GPIOLIB bus: brcmstb_gisb: Honor the "big-endian" and "native-endian" DT properties ARM: BCM: Enable NAND support for iProc SoCs ARM: BCM63xx: fix an error path in bcm63xx_pmb_power_on_cpu()
Diffstat (limited to 'drivers/bus')
-rw-r--r--drivers/bus/brcmstb_gisb.c13
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,