From: Noam Camus <no...@ezchip.com>
Direct call to readl()/writel() is checked against iotype
and in case of UPIO_MEM32BE we use ioread32be()/iowrite32be()
instead of them.
Signed-off-by: Noam Camus <no...@ezchip.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
(cherry picked from commit 5a43140cc4a59eda4549cc3b74989efa77973158)
Signed-off-by: Tan Jui Nee <jui.nee....@intel.com>
---
drivers/tty/serial/8250/8250_dw.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_dw.c
b/drivers/tty/serial/8250/8250_dw.c
index 92c4a9b..30810ac 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -114,6 +114,8 @@ static void dw8250_check_lcr(struct uart_port *p, int value)
#else
if (p->iotype == UPIO_MEM32)
writel(value, offset);
+ else if (p->iotype == UPIO_MEM32BE)
+ iowrite32be(value, offset);
else
writeb(value, offset);
#endif
@@ -327,14 +329,20 @@ static void dw8250_setup_port(struct uart_port *p)
* If the Component Version Register returns zero, we know that
* ADDITIONAL_FEATURES are not enabled. No need to go any further.
*/
- reg = readl(p->membase + DW_UART_UCV);
+ if (p->iotype == UPIO_MEM32BE)
+ reg = ioread32be(p->membase + DW_UART_UCV);
+ else
+ reg = readl(p->membase + DW_UART_UCV);
if (!reg)
return;
dev_dbg(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);
+ if (p->iotype == UPIO_MEM32BE)
+ reg = ioread32be(p->membase + DW_UART_CPR);
+ else
+ reg = readl(p->membase + DW_UART_CPR);
if (!reg)
return;
--
1.9.1
--
_______________________________________________
linux-yocto mailing list
linux-yocto@yoctoproject.org
https://lists.yoctoproject.org/listinfo/linux-yocto
