On some processors this ier register configuration is different
for ex. Marvell Armada100
This patch introduce CONFIG_SYS_NS16550_IER macro support to
unconditionally initialize this register.
Signed-off-by: Prafulla Wadaskar <prafu...@marvell.com>
---
drivers/serial/ns16550.c | 4 ++--
include/ns16550.h | 4 ++++
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
index 32f24de..8dcfcb9 100644
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -26,7 +26,7 @@
void NS16550_init (NS16550_t com_port, int baud_divisor)
{
- serial_out(0x00, &com_port->ier);
+ serial_out(CONFIG_SYS_NS16550_IER, &com_port->ier);
#if defined(CONFIG_OMAP) && !defined(CONFIG_OMAP3_ZOOM2)
serial_out(0x7, &com_port->mdr1); /* mode select reset TL16C750*/
#endif
@@ -52,7 +52,7 @@ void NS16550_init (NS16550_t com_port, int baud_divisor)
#ifndef CONFIG_NS16550_MIN_FUNCTIONS
void NS16550_reinit (NS16550_t com_port, int baud_divisor)
{
- serial_out(0x00, &com_port->ier);
+ serial_out(CONFIG_SYS_NS16550_IER, &com_port->ier);
serial_out(UART_LCR_BKSE | UART_LCRVAL, &com_port->lcr);
serial_out(0, &com_port->dll);
serial_out(0, &com_port->dlm);
diff --git a/include/ns16550.h b/include/ns16550.h
index 9ea81e9..e9cb449 100644
--- a/include/ns16550.h
+++ b/include/ns16550.h
@@ -33,6 +33,10 @@
unsigned char postpad_##x[-CONFIG_SYS_NS16550_REG_SIZE - 1];
#endif
+#ifndef CONFIG_SYS_NS16550_IER
+#define CONFIG_SYS_NS16550_IER 0x00
+#endif /* CONFIG_SYS_NS16550_IER */
+
struct NS16550 {
UART_REG(rbr); /* 0 */
UART_REG(ier); /* 1 */
--
1.6.0.3
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