With a few tweaks, the PXA serial driver can handle other 16550A clones.
Add a fifo-size DT property to override the FIFO depth (BCM7xxx uses 32),
and {native,big}-endian properties similar to regmap to support SoCs that
have BE or "automagic endian" registers.Signed-off-by: Kevin Cernekee <[email protected]> --- drivers/tty/serial/pxa.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c index 21b7d8b..21406dc 100644 --- a/drivers/tty/serial/pxa.c +++ b/drivers/tty/serial/pxa.c @@ -60,13 +60,19 @@ struct uart_pxa_port { static inline unsigned int serial_in(struct uart_pxa_port *up, int offset) { offset <<= 2; - return readl(up->port.membase + offset); + if (up->port.iotype == UPIO_MEM32BE) + return ioread32be(up->port.membase + offset); + else + return readl(up->port.membase + offset); } static inline void serial_out(struct uart_pxa_port *up, int offset, int value) { offset <<= 2; - writel(value, up->port.membase + offset); + if (up->port.iotype == UPIO_MEM32BE) + iowrite32be(value, up->port.membase + offset); + else + writel(value, up->port.membase + offset); } static void serial_pxa_enable_ms(struct uart_port *port) @@ -833,6 +839,7 @@ static int serial_pxa_probe_dt(struct platform_device *pdev, { struct device_node *np = pdev->dev.of_node; int ret; + u32 val; if (!np) return 1; @@ -843,6 +850,13 @@ static int serial_pxa_probe_dt(struct platform_device *pdev, return ret; } sport->port.line = ret; + + if (of_property_read_u32(np, "fifo-size", &val) == 0) + sport->port.fifosize = val; + + sport->port.iotype = + of_device_is_big_endian(np) ? UPIO_MEM32BE : UPIO_MEM32; + return 0; } -- 2.1.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
