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goldfish: add support for 64bit to the virtual bus

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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>
This commit is contained in:
Octavian Purdila 2014-05-12 16:55:05 +01:00 committed by Greg Kroah-Hartman
parent 25c72c786c
commit f10d843420
1 changed files with 5 additions and 1 deletions
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6
drivers/platform/goldfish/pdev_bus.c
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@ -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;