From: Noam Camus <noamc@xxxxxxxxxx>
readl() for UCV and CPR will not work for port type UPIO_MEM32BE.
Instead we use the serial_in32() accessor which is initialized
properly according to endianness.
Signed-off-by: Noam Camus <noamc@xxxxxxxxxx>
---
drivers/tty/serial/8250/8250_dw.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index f479433..62f766a 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -310,7 +310,8 @@ static bool dw8250_dma_filter(struct dma_chan *chan, void *param)
static void dw8250_setup_port(struct uart_8250_port *up)
{
struct uart_port *p = &up->port;
- u32 reg = readl(p->membase + DW_UART_UCV);
+ struct dw8250_data *d = p->private_data;
+ u32 reg = d->serial_in(p->membase + DW_UART_UCV);
/*
* If the Component Version Register returns zero, we know that
@@ -322,7 +323,7 @@ static void dw8250_setup_port(struct uart_8250_port *up)
dev_dbg_ratelimited(p->dev, "Designware UART version %c.%c%c\n",
(reg >> 24) & 0xff, (reg >> 16) & 0xff, (reg >> 8) & 0xff);
- reg = readl(p->membase + DW_UART_CPR);
+ reg = d->serial_in(p->membase + DW_UART_CPR);
if (!reg)
return;
--
1.7.1
--
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