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| author | Jun Tian <jun.j.tian@intel.com> | 2014-05-12 16:55:26 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-15 13:19:01 -0700 |
| commit | b8658bc81089d656fe54b12e21f0cae5116b6483 (patch) | |
| tree | 4495fba97e29bd3e9c4ecc50ea9c71dbcc989e5d /drivers/tty/goldfish.c | |
| parent | ec5e34c074793a1f80faaf75e9468dd2f39ec1dc (diff) | |
| download | linux-b8658bc81089d656fe54b12e21f0cae5116b6483.tar.gz | |
goldfish: enable 64-bit tty driver
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/tty/goldfish.c')
| -rw-r--r-- | drivers/tty/goldfish.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/tty/goldfish.c b/drivers/tty/goldfish.c index 75dc9d25f326..08167aa093b2 100644 --- a/drivers/tty/goldfish.c +++ b/drivers/tty/goldfish.c @@ -29,6 +29,9 @@ enum { GOLDFISH_TTY_DATA_PTR = 0x10, GOLDFISH_TTY_DATA_LEN = 0x14, +#ifdef CONFIG_64BIT + GOLDFISH_TTY_DATA_PTR_HIGH = 0x18, +#endif GOLDFISH_TTY_CMD_INT_DISABLE = 0, GOLDFISH_TTY_CMD_INT_ENABLE = 1, @@ -58,6 +61,9 @@ static void goldfish_tty_do_write(int line, const char *buf, unsigned count) void __iomem *base = qtty->base; spin_lock_irqsave(&qtty->lock, irq_flags); writel((u32)buf, base + GOLDFISH_TTY_DATA_PTR); +#ifdef CONFIG_64BIT + writel((u32)((u64)buf >> 32), base + GOLDFISH_TTY_DATA_PTR_HIGH); +#endif writel(count, base + GOLDFISH_TTY_DATA_LEN); writel(GOLDFISH_TTY_CMD_WRITE_BUFFER, base + GOLDFISH_TTY_CMD); spin_unlock_irqrestore(&qtty->lock, irq_flags); @@ -79,6 +85,9 @@ static irqreturn_t goldfish_tty_interrupt(int irq, void *dev_id) count = tty_prepare_flip_string(&qtty->port, &buf, count); spin_lock_irqsave(&qtty->lock, irq_flags); writel((u32)buf, base + GOLDFISH_TTY_DATA_PTR); +#ifdef CONFIG_64BIT + writel((u32)((u64)buf >> 32), base + GOLDFISH_TTY_DATA_PTR_HIGH); +#endif writel(count, base + GOLDFISH_TTY_DATA_LEN); writel(GOLDFISH_TTY_CMD_READ_BUFFER, base + GOLDFISH_TTY_CMD); spin_unlock_irqrestore(&qtty->lock, irq_flags); |