[U-Boot] [PATCH] at91: Factored out common serial hardware initialization
Michael Roth
mroth at nessie.de
Fri Feb 6 15:12:33 CET 2009
Created a new function at91_serial_hw_init() which sets up the
dedicated PIO pins of several at91 SoC according to CONFIG_USARTx.
Please note that the used pins for serial communication varies on
different at91 SoC independently of the logic functionality equality
of the serial hardware. But for each serial channel there is only
one possibility for IO pin multiplexing so there is no need for board
specific PIO setup. So the usage of SoC specific PIO setup is advisable.
Signed-off-by: Michael Roth <mroth at nessie.de>
---
board/afeb9260/afeb9260.c | 30 +---------------
board/atmel/at91cap9adk/at91cap9adk.c | 30 +---------------
board/atmel/at91sam9260ek/at91sam9260ek.c | 30 +---------------
board/atmel/at91sam9261ek/at91sam9261ek.c | 30 +---------------
board/atmel/at91sam9263ek/at91sam9263ek.c | 30 +---------------
board/atmel/at91sam9rlek/at91sam9rlek.c | 30 +---------------
cpu/arm926ejs/at91/Makefile | 20 +++++++++++
cpu/arm926ejs/at91/at91cap9_serial.c | 53 +++++++++++++++++++++++++++++
cpu/arm926ejs/at91/at91sam9260_serial.c | 53 +++++++++++++++++++++++++++++
cpu/arm926ejs/at91/at91sam9261_serial.c | 53 +++++++++++++++++++++++++++++
cpu/arm926ejs/at91/at91sam9263_serial.c | 53 +++++++++++++++++++++++++++++
cpu/arm926ejs/at91/at91sam9rl_serial.c | 53 +++++++++++++++++++++++++++++
include/asm-arm/arch-at91/at91_serial.h | 25 +++++++++++++
13 files changed, 322 insertions(+), 168 deletions(-)
create mode 100644 cpu/arm926ejs/at91/at91cap9_serial.c
create mode 100644 cpu/arm926ejs/at91/at91sam9260_serial.c
create mode 100644 cpu/arm926ejs/at91/at91sam9261_serial.c
create mode 100644 cpu/arm926ejs/at91/at91sam9263_serial.c
create mode 100644 cpu/arm926ejs/at91/at91sam9rl_serial.c
create mode 100644 include/asm-arm/arch-at91/at91_serial.h
diff --git a/board/afeb9260/afeb9260.c b/board/afeb9260/afeb9260.c
index 32445ab..95950c7 100644
--- a/board/afeb9260/afeb9260.c
+++ b/board/afeb9260/afeb9260.c
@@ -29,6 +29,7 @@
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
+#include <asm/arch/at91_serial.h>
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
#include <asm/arch/hardware.h>
@@ -44,33 +45,6 @@ DECLARE_GLOBAL_DATA_PTR;
* Miscelaneous platform dependent initialisations
*/
-static void afeb9260_serial_hw_init(void)
-{
-#ifdef CONFIG_USART0
- at91_set_A_periph(AT91_PIN_PB4, 1); /* TXD0 */
- at91_set_A_periph(AT91_PIN_PB5, 0); /* RXD0 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_US0);
-#endif
-
-#ifdef CONFIG_USART1
- at91_set_A_periph(AT91_PIN_PB6, 1); /* TXD1 */
- at91_set_A_periph(AT91_PIN_PB7, 0); /* RXD1 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_US1);
-#endif
-
-#ifdef CONFIG_USART2
- at91_set_A_periph(AT91_PIN_PB8, 1); /* TXD2 */
- at91_set_A_periph(AT91_PIN_PB9, 0); /* RXD2 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_US2);
-#endif
-
-#ifdef CONFIG_USART3 /* DBGU */
- at91_set_A_periph(AT91_PIN_PB14, 0); /* DRXD */
- at91_set_A_periph(AT91_PIN_PB15, 1); /* DTXD */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
-#endif
-}
-
static void afeb9260_nand_hw_init(void)
{
unsigned long csa;
@@ -201,7 +175,7 @@ int board_init(void)
/* adress of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
- afeb9260_serial_hw_init();
+ at91_serial_hw_init();
#ifdef CONFIG_CMD_NAND
afeb9260_nand_hw_init();
#endif
diff --git a/board/atmel/at91cap9adk/at91cap9adk.c b/board/atmel/at91cap9adk/at91cap9adk.c
index f7d68b7..29b51ee 100644
--- a/board/atmel/at91cap9adk/at91cap9adk.c
+++ b/board/atmel/at91cap9adk/at91cap9adk.c
@@ -28,6 +28,7 @@
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
+#include <asm/arch/at91_serial.h>
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
#include <asm/arch/hardware.h>
@@ -47,33 +48,6 @@ DECLARE_GLOBAL_DATA_PTR;
* Miscelaneous platform dependent initialisations
*/
-static void at91cap9_serial_hw_init(void)
-{
-#ifdef CONFIG_USART0
- at91_set_A_periph(AT91_PIN_PA22, 1); /* TXD0 */
- at91_set_A_periph(AT91_PIN_PA23, 0); /* RXD0 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_US0);
-#endif
-
-#ifdef CONFIG_USART1
- at91_set_A_periph(AT91_PIN_PD0, 1); /* TXD1 */
- at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_US1);
-#endif
-
-#ifdef CONFIG_USART2
- at91_set_A_periph(AT91_PIN_PD2, 1); /* TXD2 */
- at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_US2);
-#endif
-
-#ifdef CONFIG_USART3 /* DBGU */
- at91_set_A_periph(AT91_PIN_PC30, 0); /* DRXD */
- at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
-#endif
-}
-
static void at91cap9_slowclock_hw_init(void)
{
/*
@@ -367,7 +341,7 @@ int board_init(void)
/* adress of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
- at91cap9_serial_hw_init();
+ at91_serial_hw_init();
at91cap9_slowclock_hw_init();
at91cap9_nor_hw_init();
#ifdef CONFIG_CMD_NAND
diff --git a/board/atmel/at91sam9260ek/at91sam9260ek.c b/board/atmel/at91sam9260ek/at91sam9260ek.c
index ef99b8b..686bfe2 100644
--- a/board/atmel/at91sam9260ek/at91sam9260ek.c
+++ b/board/atmel/at91sam9260ek/at91sam9260ek.c
@@ -28,6 +28,7 @@
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
+#include <asm/arch/at91_serial.h>
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
#include <asm/arch/hardware.h>
@@ -43,33 +44,6 @@ DECLARE_GLOBAL_DATA_PTR;
* Miscelaneous platform dependent initialisations
*/
-static void at91sam9260ek_serial_hw_init(void)
-{
-#ifdef CONFIG_USART0
- at91_set_A_periph(AT91_PIN_PB4, 1); /* TXD0 */
- at91_set_A_periph(AT91_PIN_PB5, 0); /* RXD0 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_US0);
-#endif
-
-#ifdef CONFIG_USART1
- at91_set_A_periph(AT91_PIN_PB6, 1); /* TXD1 */
- at91_set_A_periph(AT91_PIN_PB7, 0); /* RXD1 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_US1);
-#endif
-
-#ifdef CONFIG_USART2
- at91_set_A_periph(AT91_PIN_PB8, 1); /* TXD2 */
- at91_set_A_periph(AT91_PIN_PB9, 0); /* RXD2 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_US2);
-#endif
-
-#ifdef CONFIG_USART3 /* DBGU */
- at91_set_A_periph(AT91_PIN_PB14, 0); /* DRXD */
- at91_set_A_periph(AT91_PIN_PB15, 1); /* DTXD */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
-#endif
-}
-
#ifdef CONFIG_CMD_NAND
static void at91sam9260ek_nand_hw_init(void)
{
@@ -217,7 +191,7 @@ int board_init(void)
/* adress of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
- at91sam9260ek_serial_hw_init();
+ at91_serial_hw_init();
#ifdef CONFIG_CMD_NAND
at91sam9260ek_nand_hw_init();
#endif
diff --git a/board/atmel/at91sam9261ek/at91sam9261ek.c b/board/atmel/at91sam9261ek/at91sam9261ek.c
index 14f236d..7707dc3 100644
--- a/board/atmel/at91sam9261ek/at91sam9261ek.c
+++ b/board/atmel/at91sam9261ek/at91sam9261ek.c
@@ -28,6 +28,7 @@
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
+#include <asm/arch/at91_serial.h>
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
#include <lcd.h>
@@ -43,33 +44,6 @@ DECLARE_GLOBAL_DATA_PTR;
* Miscelaneous platform dependent initialisations
*/
-static void at91sam9261ek_serial_hw_init(void)
-{
-#ifdef CONFIG_USART0
- at91_set_A_periph(AT91_PIN_PC8, 1); /* TXD0 */
- at91_set_A_periph(AT91_PIN_PC9, 0); /* RXD0 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9261_ID_US0);
-#endif
-
-#ifdef CONFIG_USART1
- at91_set_A_periph(AT91_PIN_PC12, 1); /* TXD1 */
- at91_set_A_periph(AT91_PIN_PC13, 0); /* RXD1 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9261_ID_US1);
-#endif
-
-#ifdef CONFIG_USART2
- at91_set_A_periph(AT91_PIN_PC14, 1); /* TXD2 */
- at91_set_A_periph(AT91_PIN_PC15, 0); /* RXD2 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9261_ID_US2);
-#endif
-
-#ifdef CONFIG_USART3 /* DBGU */
- at91_set_A_periph(AT91_PIN_PA9, 0); /* DRXD */
- at91_set_A_periph(AT91_PIN_PA10, 1); /* DTXD */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
-#endif
-}
-
#ifdef CONFIG_CMD_NAND
static void at91sam9261ek_nand_hw_init(void)
{
@@ -250,7 +224,7 @@ int board_init(void)
/* adress of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
- at91sam9261ek_serial_hw_init();
+ at91_serial_hw_init();
#ifdef CONFIG_CMD_NAND
at91sam9261ek_nand_hw_init();
#endif
diff --git a/board/atmel/at91sam9263ek/at91sam9263ek.c b/board/atmel/at91sam9263ek/at91sam9263ek.c
index ebd4649..35c18b0 100644
--- a/board/atmel/at91sam9263ek/at91sam9263ek.c
+++ b/board/atmel/at91sam9263ek/at91sam9263ek.c
@@ -29,6 +29,7 @@
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
+#include <asm/arch/at91_serial.h>
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
#include <asm/arch/hardware.h>
@@ -46,33 +47,6 @@ DECLARE_GLOBAL_DATA_PTR;
* Miscelaneous platform dependent initialisations
*/
-static void at91sam9263ek_serial_hw_init(void)
-{
-#ifdef CONFIG_USART0
- at91_set_A_periph(AT91_PIN_PA26, 1); /* TXD0 */
- at91_set_A_periph(AT91_PIN_PA27, 0); /* RXD0 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_US0);
-#endif
-
-#ifdef CONFIG_USART1
- at91_set_A_periph(AT91_PIN_PD0, 1); /* TXD1 */
- at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_US1);
-#endif
-
-#ifdef CONFIG_USART2
- at91_set_A_periph(AT91_PIN_PD2, 1); /* TXD2 */
- at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_US2);
-#endif
-
-#ifdef CONFIG_USART3 /* DBGU */
- at91_set_A_periph(AT91_PIN_PC30, 0); /* DRXD */
- at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
-#endif
-}
-
#ifdef CONFIG_CMD_NAND
static void at91sam9263ek_nand_hw_init(void)
{
@@ -301,7 +275,7 @@ int board_init(void)
/* adress of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
- at91sam9263ek_serial_hw_init();
+ at91_serial_hw_init();
#ifdef CONFIG_CMD_NAND
at91sam9263ek_nand_hw_init();
#endif
diff --git a/board/atmel/at91sam9rlek/at91sam9rlek.c b/board/atmel/at91sam9rlek/at91sam9rlek.c
index b6fef9d..a6ce9d9 100644
--- a/board/atmel/at91sam9rlek/at91sam9rlek.c
+++ b/board/atmel/at91sam9rlek/at91sam9rlek.c
@@ -28,6 +28,7 @@
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
+#include <asm/arch/at91_serial.h>
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
#include <lcd.h>
@@ -43,33 +44,6 @@ DECLARE_GLOBAL_DATA_PTR;
* Miscelaneous platform dependent initialisations
*/
-static void at91sam9rlek_serial_hw_init(void)
-{
-#ifdef CONFIG_USART0
- at91_set_A_periph(AT91_PIN_PA6, 1); /* TXD0 */
- at91_set_A_periph(AT91_PIN_PA7, 0); /* RXD0 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_US0);
-#endif
-
-#ifdef CONFIG_USART1
- at91_set_A_periph(AT91_PIN_PA11, 1); /* TXD1 */
- at91_set_A_periph(AT91_PIN_PA12, 0); /* RXD1 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_US1);
-#endif
-
-#ifdef CONFIG_USART2
- at91_set_A_periph(AT91_PIN_PA13, 1); /* TXD2 */
- at91_set_A_periph(AT91_PIN_PA14, 0); /* RXD2 */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_US2);
-#endif
-
-#ifdef CONFIG_USART3 /* DBGU */
- at91_set_A_periph(AT91_PIN_PA21, 0); /* DRXD */
- at91_set_A_periph(AT91_PIN_PA22, 1); /* DTXD */
- at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
-#endif
-}
-
#ifdef CONFIG_CMD_NAND
static void at91sam9rlek_nand_hw_init(void)
{
@@ -223,7 +197,7 @@ int board_init(void)
/* adress of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
- at91sam9rlek_serial_hw_init();
+ at91_serial_hw_init();
#ifdef CONFIG_CMD_NAND
at91sam9rlek_nand_hw_init();
#endif
diff --git a/cpu/arm926ejs/at91/Makefile b/cpu/arm926ejs/at91/Makefile
index 2d2a888..f94d961 100644
--- a/cpu/arm926ejs/at91/Makefile
+++ b/cpu/arm926ejs/at91/Makefile
@@ -30,6 +30,26 @@ COBJS-$(CONFIG_HAS_DATAFLASH) +=spi.o
COBJS-y += usb.o
SOBJS = lowlevel_init.o
+ifdef CONFIG_AT91CAP9
+COBJS-y += at91cap9_serial.o
+endif
+
+ifdef CONFIG_AT91SAM9260
+COBJS-y += at91sam9260_serial.o
+endif
+
+ifdef CONFIG_AT91SAM9261
+COBJS-y += at91sam9261_serial.o
+endif
+
+ifdef CONFIG_AT91SAM9263
+COBJS-y += at91sam9263_serial.o
+endif
+
+ifdef CONFIG_AT91SAM9RL
+COBJS-y += at91sam9rl_serial.o
+endif
+
SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS-y))
diff --git a/cpu/arm926ejs/at91/at91cap9_serial.c b/cpu/arm926ejs/at91/at91cap9_serial.c
new file mode 100644
index 0000000..6dd53cf
--- /dev/null
+++ b/cpu/arm926ejs/at91/at91cap9_serial.c
@@ -0,0 +1,53 @@
+/*
+ * (C) Copyright 2009 Michael Roth <mroth at nessie.de>
+ *
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop at leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_serial.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+
+void at91_serial_hw_init(void)
+{
+#ifdef CONFIG_USART0
+ at91_set_A_periph(AT91_PIN_PA22, 1); /* TXD0 */
+ at91_set_A_periph(AT91_PIN_PA23, 0); /* RXD0 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_US0);
+#endif
+#ifdef CONFIG_USART1
+ at91_set_A_periph(AT91_PIN_PD0, 1); /* TXD1 */
+ at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_US1);
+#endif
+#ifdef CONFIG_USART2
+ at91_set_A_periph(AT91_PIN_PD2, 1); /* TXD2 */
+ at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_US2);
+#endif
+#ifdef CONFIG_USART3 /* DBGU */
+ at91_set_A_periph(AT91_PIN_PC30, 0); /* DRXD */
+ at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
+#endif
+}
diff --git a/cpu/arm926ejs/at91/at91sam9260_serial.c b/cpu/arm926ejs/at91/at91sam9260_serial.c
new file mode 100644
index 0000000..e63748b
--- /dev/null
+++ b/cpu/arm926ejs/at91/at91sam9260_serial.c
@@ -0,0 +1,53 @@
+/*
+ * (C) Copyright 2009 Michael Roth <mroth at nessie.de>
+ *
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop at leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_serial.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+
+void at91_serial_hw_init(void)
+{
+#ifdef CONFIG_USART0
+ at91_set_A_periph(AT91_PIN_PB4, 1); /* TXD0 */
+ at91_set_A_periph(AT91_PIN_PB5, 0); /* RXD0 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_US0);
+#endif
+#ifdef CONFIG_USART1
+ at91_set_A_periph(AT91_PIN_PB6, 1); /* TXD1 */
+ at91_set_A_periph(AT91_PIN_PB7, 0); /* RXD1 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_US1);
+#endif
+#ifdef CONFIG_USART2
+ at91_set_A_periph(AT91_PIN_PB8, 1); /* TXD2 */
+ at91_set_A_periph(AT91_PIN_PB9, 0); /* RXD2 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_US2);
+#endif
+#ifdef CONFIG_USART3 /* DBGU */
+ at91_set_A_periph(AT91_PIN_PB14, 0); /* DRXD */
+ at91_set_A_periph(AT91_PIN_PB15, 1); /* DTXD */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
+#endif
+}
diff --git a/cpu/arm926ejs/at91/at91sam9261_serial.c b/cpu/arm926ejs/at91/at91sam9261_serial.c
new file mode 100644
index 0000000..f3b4fd4
--- /dev/null
+++ b/cpu/arm926ejs/at91/at91sam9261_serial.c
@@ -0,0 +1,53 @@
+/*
+ * (C) Copyright 2009 Michael Roth <mroth at nessie.de>
+ *
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop at leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_serial.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+
+void at91_serial_hw_init(void)
+{
+#ifdef CONFIG_USART0
+ at91_set_A_periph(AT91_PIN_PC8, 1); /* TXD0 */
+ at91_set_A_periph(AT91_PIN_PC9, 0); /* RXD0 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9261_ID_US0);
+#endif
+#ifdef CONFIG_USART1
+ at91_set_A_periph(AT91_PIN_PC12, 1); /* TXD1 */
+ at91_set_A_periph(AT91_PIN_PC13, 0); /* RXD1 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9261_ID_US1);
+#endif
+#ifdef CONFIG_USART2
+ at91_set_A_periph(AT91_PIN_PC14, 1); /* TXD2 */
+ at91_set_A_periph(AT91_PIN_PC15, 0); /* RXD2 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9261_ID_US2);
+#endif
+#ifdef CONFIG_USART3 /* DBGU */
+ at91_set_A_periph(AT91_PIN_PA9, 0); /* DRXD */
+ at91_set_A_periph(AT91_PIN_PA10, 1); /* DTXD */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
+#endif
+}
diff --git a/cpu/arm926ejs/at91/at91sam9263_serial.c b/cpu/arm926ejs/at91/at91sam9263_serial.c
new file mode 100644
index 0000000..0e83a21
--- /dev/null
+++ b/cpu/arm926ejs/at91/at91sam9263_serial.c
@@ -0,0 +1,53 @@
+/*
+ * (C) Copyright 2009 Michael Roth <mroth at nessie.de>
+ *
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop at leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_serial.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+
+void at91_serial_hw_init(void)
+{
+#ifdef CONFIG_USART0
+ at91_set_A_periph(AT91_PIN_PA26, 1); /* TXD0 */
+ at91_set_A_periph(AT91_PIN_PA27, 0); /* RXD0 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_US0);
+#endif
+#ifdef CONFIG_USART1
+ at91_set_A_periph(AT91_PIN_PD0, 1); /* TXD1 */
+ at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_US1);
+#endif
+#ifdef CONFIG_USART2
+ at91_set_A_periph(AT91_PIN_PD2, 1); /* TXD2 */
+ at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_US2);
+#endif
+#ifdef CONFIG_USART3 /* DBGU */
+ at91_set_A_periph(AT91_PIN_PC30, 0); /* DRXD */
+ at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
+#endif
+}
diff --git a/cpu/arm926ejs/at91/at91sam9rl_serial.c b/cpu/arm926ejs/at91/at91sam9rl_serial.c
new file mode 100644
index 0000000..e71305c
--- /dev/null
+++ b/cpu/arm926ejs/at91/at91sam9rl_serial.c
@@ -0,0 +1,53 @@
+/*
+ * (C) Copyright 2009 Michael Roth <mroth at nessie.de>
+ *
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop at leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_serial.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+
+void at91_serial_hw_init(void)
+{
+#ifdef CONFIG_USART0
+ at91_set_A_periph(AT91_PIN_PA6, 1); /* TXD0 */
+ at91_set_A_periph(AT91_PIN_PA7, 0); /* RXD0 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_US0);
+#endif
+#ifdef CONFIG_USART1
+ at91_set_A_periph(AT91_PIN_PA11, 1); /* TXD1 */
+ at91_set_A_periph(AT91_PIN_PA12, 0); /* RXD1 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_US1);
+#endif
+#ifdef CONFIG_USART2
+ at91_set_A_periph(AT91_PIN_PA13, 1); /* TXD2 */
+ at91_set_A_periph(AT91_PIN_PA14, 0); /* RXD2 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_US2);
+#endif
+#ifdef CONFIG_USART3 /* DBGU */
+ at91_set_A_periph(AT91_PIN_PA21, 0); /* DRXD */
+ at91_set_A_periph(AT91_PIN_PA22, 1); /* DTXD */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
+#endif
+}
diff --git a/include/asm-arm/arch-at91/at91_serial.h b/include/asm-arm/arch-at91/at91_serial.h
new file mode 100644
index 0000000..d7ce640
--- /dev/null
+++ b/include/asm-arm/arch-at91/at91_serial.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2009 Michael Roth <mroth at nessie.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __AT91_SERIAL_H__
+#define __AT91_SERIAL_H__
+
+#include <common.h>
+
+extern void at91_serial_hw_init(void);
+
+#endif /* __AT91_SERIAL_H__ */
--
1.6.0.6
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