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authorOctavian Purdila <octavian.purdila@intel.com>2014-05-12 19:55:05 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-05-16 00:19:00 +0400
commitf10d8434201859d5ad7f51032dcd2d0c09e85ee2 (patch)
treed063c057509a94a571c250567ec8601e9c85204e /drivers/platform
parent25c72c786cb571cfdf39a31f9f64d143d8623a7a (diff)
downloadlinux-f10d8434201859d5ad7f51032dcd2d0c09e85ee2.tar.xz
goldfish: add support for 64bit to the virtual bus
This patchs adds a new register to pass the upper 32bits for the device name address when running in 64bit mode. Signed-off-by: Octavian Purdila <octavian.purdila@intel.com> Signed-off-by: Jun Tian <jun.j.tian@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/goldfish/pdev_bus.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/platform/goldfish/pdev_bus.c b/drivers/platform/goldfish/pdev_bus.c
index 4eb2bb34790d..eb254400c44a 100644
--- a/drivers/platform/goldfish/pdev_bus.c
+++ b/drivers/platform/goldfish/pdev_bus.c
@@ -36,6 +36,7 @@
#define PDEV_BUS_IO_SIZE (0x14)
#define PDEV_BUS_IRQ (0x18)
#define PDEV_BUS_IRQ_COUNT (0x1c)
+#define PDEV_BUS_GET_NAME_HIGH (0x20)
struct pdev_bus_dev {
struct list_head list;
@@ -129,7 +130,10 @@ static int goldfish_new_pdev(void)
dev->pdev.dev.dma_mask = (void *)(dev->pdev.name + name_len + 1);
*dev->pdev.dev.dma_mask = ~0;
- writel((unsigned long)name, pdev_bus_base + PDEV_BUS_GET_NAME);
+#ifdef CONFIG_64BIT
+ writel((u32)((u64)name>>32), pdev_bus_base + PDEV_BUS_GET_NAME_HIGH);
+#endif
+ writel((u32)(u64)name, pdev_bus_base + PDEV_BUS_GET_NAME);
name[name_len] = '\0';
dev->pdev.id = readl(pdev_bus_base + PDEV_BUS_ID);
dev->pdev.resource[0].start = base;