[U-Boot] [PATCH 2/5] Serial: Add UART support for Marvell ARMADA 100 SoCs.
Prafulla Wadaskar
prafulla at marvell.com
Wed Oct 27 15:53:21 CEST 2010
From: Prafulla WADASKAR <prafulla at marvell.com>
ARMADA 100 SoCs has NS16550 compatible UART peripheral
This patch enables the same for ARMADA100 platforms
Signed-off-by: Mahavir Jain <mjain at marvell.com>
Signed-off-by: Prafulla WADASKAR <prafulla at marvell.com>
---
drivers/serial/ns16550.c | 16 ++++++++++++++++
drivers/serial/serial.c | 3 +++
2 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
index 32f24de..e57ed1f 100644
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -26,7 +26,15 @@
void NS16550_init (NS16550_t com_port, int baud_divisor)
{
+#ifdef CONFIG_ARMADA100
+ /*
+ * For ARMADA 100 Based Processors bit 6 in IER register
+ * represents UART Unit Enable bit.
+ */
+ serial_out((1 << 6), &com_port->ier);
+#else
serial_out(0x00, &com_port->ier);
+#endif
#if defined(CONFIG_OMAP) && !defined(CONFIG_OMAP3_ZOOM2)
serial_out(0x7, &com_port->mdr1); /* mode select reset TL16C750*/
#endif
@@ -52,7 +60,15 @@ 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)
{
+#ifdef CONFIG_ARMADA100
+ /*
+ * For ARMADA 100 Based Processors bit 6 in IER register
+ * represents UART Unit Enable bit.
+ */
+ serial_out((1 << 6), &com_port->ier);
+#else
serial_out(0x00, &com_port->ier);
+#endif
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/drivers/serial/serial.c b/drivers/serial/serial.c
index 1073ac0..f9a964e 100644
--- a/drivers/serial/serial.c
+++ b/drivers/serial/serial.c
@@ -33,6 +33,9 @@
#ifdef CONFIG_ORION5X
#include <asm/arch/orion5x.h>
#endif
+#ifdef CONFIG_ARMADA100
+#include <asm/arch/armada100.h>
+#endif
#if defined (CONFIG_SERIAL_MULTI)
#include <serial.h>
--
1.7.2.1
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