at91sam9/at91cap: move common spi initialisation to cpu

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

board/afeb9260/afeb9260.c

@@ -78,19 +78,6 @@ static void afeb9260_nand_hw_init(void)
 	at91_set_gpio_output(AT91_PIN_PC14, 1);
 }
 
-static void afeb9260_spi_hw_init(void)
-{
-	at91_set_A_periph(AT91_PIN_PA3, 0);	/* SPI0_NPCS0 */
-	at91_set_B_periph(AT91_PIN_PC11, 0);	/* SPI0_NPCS1 */
-
-	at91_set_A_periph(AT91_PIN_PA0, 0);	/* SPI0_MISO */
-	at91_set_A_periph(AT91_PIN_PA1, 0);	/* SPI0_MOSI */
-	at91_set_A_periph(AT91_PIN_PA2, 0);	/* SPI0_SPCK */
-
-	/* Enable clock */
-	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_SPI0);
-}
-
 #ifdef CONFIG_MACB
 static void afeb9260_macb_hw_init(void)
 {
@@ -179,7 +166,7 @@ int board_init(void)
 #ifdef CONFIG_CMD_NAND
 	afeb9260_nand_hw_init();
 #endif
-	afeb9260_spi_hw_init();
+	at91_spi0_hw_init((1 << 0) || (1 << 1));
 #ifdef CONFIG_MACB
 	afeb9260_macb_hw_init();
 #endif

board/atmel/at91cap9adk/at91cap9adk.c

@@ -137,20 +137,6 @@ static void at91cap9_nand_hw_init(void)
 }
 #endif
 
-#ifdef CONFIG_HAS_DATAFLASH
-static void at91cap9_spi_hw_init(void)
-{
-	at91_set_B_periph(AT91_PIN_PA5, 0);	/* SPI0_NPCS0 */
-
-	at91_set_B_periph(AT91_PIN_PA0, 0);	/* SPI0_MISO */
-	at91_set_B_periph(AT91_PIN_PA1, 0);	/* SPI0_MOSI */
-	at91_set_B_periph(AT91_PIN_PA2, 0);	/* SPI0_SPCK */
-
-	/* Enable clock */
-	at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_SPI0);
-}
-#endif
-
 #ifdef CONFIG_MACB
 static void at91cap9_macb_hw_init(void)
 {
@@ -348,7 +334,7 @@ int board_init(void)
 	at91cap9_nand_hw_init();
 #endif
 #ifdef CONFIG_HAS_DATAFLASH
-	at91cap9_spi_hw_init();
+	at91_spi0_hw_init(1 << 0);
 #endif
 #ifdef CONFIG_MACB
 	at91cap9_macb_hw_init();

board/atmel/at91sam9260ek/at91sam9260ek.c

@@ -83,21 +83,6 @@ static void at91sam9260ek_nand_hw_init(void)
 }
 #endif
 
-#ifdef CONFIG_HAS_DATAFLASH
-static void at91sam9260ek_spi_hw_init(void)
-{
-	at91_set_A_periph(AT91_PIN_PA3, 0);	/* SPI0_NPCS0 */
-	at91_set_B_periph(AT91_PIN_PC11, 0);	/* SPI0_NPCS1 */
-
-	at91_set_A_periph(AT91_PIN_PA0, 0);	/* SPI0_MISO */
-	at91_set_A_periph(AT91_PIN_PA1, 0);	/* SPI0_MOSI */
-	at91_set_A_periph(AT91_PIN_PA2, 0);	/* SPI0_SPCK */
-
-	/* Enable clock */
-	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_SPI0);
-}
-#endif
-
 #ifdef CONFIG_MACB
 static void at91sam9260ek_macb_hw_init(void)
 {
@@ -196,7 +181,7 @@ int board_init(void)
 	at91sam9260ek_nand_hw_init();
 #endif
 #ifdef CONFIG_HAS_DATAFLASH
-	at91sam9260ek_spi_hw_init();
+	at91_spi0_hw_init((1 << 0) || (1 << 1));
 #endif
 #ifdef CONFIG_MACB
 	at91sam9260ek_macb_hw_init();

board/atmel/at91sam9261ek/at91sam9261ek.c

@@ -86,20 +86,6 @@ static void at91sam9261ek_nand_hw_init(void)
 }
 #endif
 
-#ifdef CONFIG_HAS_DATAFLASH
-static void at91sam9261ek_spi_hw_init(void)
-{
-	at91_set_A_periph(AT91_PIN_PA3, 0);	/* SPI0_NPCS0 */
-
-	at91_set_A_periph(AT91_PIN_PA0, 0);	/* SPI0_MISO */
-	at91_set_A_periph(AT91_PIN_PA1, 0);	/* SPI0_MOSI */
-	at91_set_A_periph(AT91_PIN_PA2, 0);	/* SPI0_SPCK */
-
-	/* Enable clock */
-	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9261_ID_SPI0);
-}
-#endif
-
 #ifdef CONFIG_DRIVER_DM9000
 static void at91sam9261ek_dm9000_hw_init(void)
 {
@@ -229,7 +215,7 @@ int board_init(void)
 	at91sam9261ek_nand_hw_init();
 #endif
 #ifdef CONFIG_HAS_DATAFLASH
-	at91sam9261ek_spi_hw_init();
+	at91_spi0_hw_init(1 << 0);
 #endif
 #ifdef CONFIG_DRIVER_DM9000
 	at91sam9261ek_dm9000_hw_init();

board/atmel/at91sam9263ek/at91sam9263ek.c

@@ -87,20 +87,6 @@ static void at91sam9263ek_nand_hw_init(void)
 }
 #endif
 
-#ifdef CONFIG_HAS_DATAFLASH
-static void at91sam9263ek_spi_hw_init(void)
-{
-	at91_set_B_periph(AT91_PIN_PA5, 0);	/* SPI0_NPCS0 */
-
-	at91_set_B_periph(AT91_PIN_PA0, 0);	/* SPI0_MISO */
-	at91_set_B_periph(AT91_PIN_PA1, 0);	/* SPI0_MOSI */
-	at91_set_B_periph(AT91_PIN_PA2, 0);	/* SPI0_SPCK */
-
-	/* Enable clock */
-	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_SPI0);
-}
-#endif
-
 #ifdef CONFIG_MACB
 static void at91sam9263ek_macb_hw_init(void)
 {
@@ -280,7 +266,8 @@ int board_init(void)
 	at91sam9263ek_nand_hw_init();
 #endif
 #ifdef CONFIG_HAS_DATAFLASH
-	at91sam9263ek_spi_hw_init();
+	at91_set_gpio_output(AT91_PIN_PE20, 1);	/* select spi0 clock */
+	at91_spi0_hw_init(1 << 0);
 #endif
 #ifdef CONFIG_MACB
 	at91sam9263ek_macb_hw_init();

board/atmel/at91sam9rlek/at91sam9rlek.c

@@ -86,20 +86,6 @@ static void at91sam9rlek_nand_hw_init(void)
 }
 #endif
 
-#ifdef CONFIG_HAS_DATAFLASH
-static void at91sam9rlek_spi_hw_init(void)
-{
-	at91_set_A_periph(AT91_PIN_PA28, 0);	/* SPI0_NPCS0 */
-
-	at91_set_A_periph(AT91_PIN_PA25, 0);	/* SPI0_MISO */
-	at91_set_A_periph(AT91_PIN_PA26, 0);	/* SPI0_MOSI */
-	at91_set_A_periph(AT91_PIN_PA27, 0);	/* SPI0_SPCK */
-
-	/* Enable clock */
-	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_SPI);
-}
-#endif
-
 #ifdef CONFIG_LCD
 vidinfo_t panel_info = {
 	vl_col:		240,
@@ -202,7 +188,7 @@ int board_init(void)
 	at91sam9rlek_nand_hw_init();
 #endif
 #ifdef CONFIG_HAS_DATAFLASH
-	at91sam9rlek_spi_hw_init();
+	at91_spi0_hw_init(1 << 0);
 #endif
 #ifdef CONFIG_LCD
 	at91sam9rlek_lcd_hw_init();

cpu/arm926ejs/at91/Makefile

@@ -25,11 +25,26 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(SOC).a
 
-COBJS-$(CONFIG_AT91CAP9)	+= at91cap9_serial.o
+ifdef CONFIG_AT91CAP9
-COBJS-$(CONFIG_AT91SAM9260)	+= at91sam9260_serial.o
+COBJS-y				+= at91cap9_serial.o
-COBJS-$(CONFIG_AT91SAM9261)	+= at91sam9261_serial.o
+COBJS-$(CONFIG_HAS_DATAFLASH)	+= at91cap9_spi.o
-COBJS-$(CONFIG_AT91SAM9263)	+= at91sam9263_serial.o
+endif
-COBJS-$(CONFIG_AT91SAM9RL)	+= at91sam9rl_serial.o
+ifdef CONFIG_AT91SAM9260
+COBJS-y				+= at91sam9260_serial.o
+COBJS-$(CONFIG_HAS_DATAFLASH)	+= at91sam9260_spi.o
+endif
+ifdef CONFIG_AT91SAM9261
+COBJS-y				+= at91sam9261_serial.o
+COBJS-$(CONFIG_HAS_DATAFLASH)	+= at91sam9261_spi.o
+endif
+ifdef CONFIG_AT91SAM9263
+COBJS-y				+= at91sam9263_serial.o
+COBJS-$(CONFIG_HAS_DATAFLASH)	+= at91sam9263_spi.o
+endif
+ifdef CONFIG_AT91SAM9RL
+COBJS-y				+= at91sam9rl_serial.o
+COBJS-$(CONFIG_HAS_DATAFLASH)	+= at91sam9rl_spi.o
+endif
 COBJS-$(CONFIG_HAS_DATAFLASH)	+= spi.o
 COBJS-y	+= timer.o
 COBJS-y	+= usb.o

cpu/arm926ejs/at91/at91cap9_spi.c

@@ -0,0 +1,75 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop@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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+
+void at91_spi0_hw_init(unsigned long cs_mask)
+{
+	at91_set_B_periph(AT91_PIN_PA0, 0);	/* SPI0_MISO */
+	at91_set_B_periph(AT91_PIN_PA1, 0);	/* SPI0_MOSI */
+	at91_set_B_periph(AT91_PIN_PA2, 0);	/* SPI0_SPCK */
+
+	/* Enable clock */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_SPI0);
+
+	if (cs_mask & (1 << 0)) {
+		at91_set_gpio_output(AT91_PIN_PA5, 1);
+	}
+	if (cs_mask & (1 << 1)) {
+		at91_set_gpio_output(AT91_PIN_PA3, 1);
+	}
+	if (cs_mask & (1 << 2)) {
+		at91_set_gpio_output(AT91_PIN_PD0, 1);
+	}
+	if (cs_mask & (1 << 3)) {
+		at91_set_gpio_output(AT91_PIN_PD1, 1);
+	}
+}
+
+void at91_spi1_hw_init(unsigned long cs_mask)
+{
+	at91_set_A_periph(AT91_PIN_PB12, 0);	/* SPI1_MISO */
+	at91_set_A_periph(AT91_PIN_PB13, 0);	/* SPI1_MOSI */
+	at91_set_A_periph(AT91_PIN_PB14, 0);	/* SPI1_SPCK */
+
+	/* Enable clock */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_SPI1);
+
+	if (cs_mask & (1 << 0)) {
+		at91_set_gpio_output(AT91_PIN_PB15, 1);
+	}
+	if (cs_mask & (1 << 1)) {
+		at91_set_gpio_output(AT91_PIN_PB16, 1);
+	}
+	if (cs_mask & (1 << 2)) {
+		at91_set_gpio_output(AT91_PIN_PB17, 1);
+	}
+	if (cs_mask & (1 << 3)) {
+		at91_set_gpio_output(AT91_PIN_PB18, 1);
+	}
+}

cpu/arm926ejs/at91/at91sam9260_spi.c

@@ -0,0 +1,75 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop@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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+
+void at91_spi0_hw_init(unsigned long cs_mask)
+{
+	at91_set_A_periph(AT91_PIN_PA0, 0);	/* SPI0_MISO */
+	at91_set_A_periph(AT91_PIN_PA1, 0);	/* SPI0_MOSI */
+	at91_set_A_periph(AT91_PIN_PA2, 0);	/* SPI0_SPCK */
+
+	/* Enable clock */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_SPI0);
+
+	if (cs_mask & (1 << 0)) {
+		at91_set_gpio_output(AT91_PIN_PA3, 1);
+	}
+	if (cs_mask & (1 << 1)) {
+		at91_set_gpio_output(AT91_PIN_PC11, 1);
+	}
+	if (cs_mask & (1 << 2)) {
+		at91_set_gpio_output(AT91_PIN_PC16, 1);
+	}
+	if (cs_mask & (1 << 3)) {
+		at91_set_gpio_output(AT91_PIN_PC17, 1);
+	}
+}
+
+void at91_spi1_hw_init(unsigned long cs_mask)
+{
+	at91_set_A_periph(AT91_PIN_PB0, 0);	/* SPI1_MISO */
+	at91_set_A_periph(AT91_PIN_PB1, 0);	/* SPI1_MOSI */
+	at91_set_A_periph(AT91_PIN_PB2, 0);	/* SPI1_SPCK */
+
+	/* Enable clock */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_SPI1);
+
+	if (cs_mask & (1 << 0)) {
+		at91_set_gpio_output(AT91_PIN_PB3, 1);
+	}
+	if (cs_mask & (1 << 1)) {
+		at91_set_gpio_output(AT91_PIN_PC5, 1);
+	}
+	if (cs_mask & (1 << 2)) {
+		at91_set_gpio_output(AT91_PIN_PC4, 1);
+	}
+	if (cs_mask & (1 << 3)) {
+		at91_set_gpio_output(AT91_PIN_PC3, 1);
+	}
+}

cpu/arm926ejs/at91/at91sam9261_spi.c

@@ -0,0 +1,75 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop@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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+
+void at91_spi0_hw_init(unsigned long cs_mask)
+{
+	at91_set_A_periph(AT91_PIN_PA0, 0);	/* SPI0_MISO */
+	at91_set_A_periph(AT91_PIN_PA1, 0);	/* SPI0_MOSI */
+	at91_set_A_periph(AT91_PIN_PA2, 0);	/* SPI0_SPCK */
+
+	/* Enable clock */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9261_ID_SPI0);
+
+	if (cs_mask & (1 << 0)) {
+		at91_set_gpio_output(AT91_PIN_PA3, 1);
+	}
+	if (cs_mask & (1 << 1)) {
+		at91_set_gpio_output(AT91_PIN_PA4, 1);
+	}
+	if (cs_mask & (1 << 2)) {
+		at91_set_gpio_output(AT91_PIN_PA5, 1);
+	}
+	if (cs_mask & (1 << 3)) {
+		at91_set_gpio_output(AT91_PIN_PA6, 1);
+	}
+}
+
+void at91_spi1_hw_init(unsigned long cs_mask)
+{
+	at91_set_A_periph(AT91_PIN_PB30, 0);	/* SPI1_MISO */
+	at91_set_A_periph(AT91_PIN_PB31, 0);	/* SPI1_MOSI */
+	at91_set_A_periph(AT91_PIN_PB29, 0);	/* SPI1_SPCK */
+
+	/* Enable clock */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9261_ID_SPI1);
+
+	if (cs_mask & (1 << 0)) {
+		at91_set_gpio_output(AT91_PIN_PB28, 1);
+	}
+	if (cs_mask & (1 << 1)) {
+		at91_set_gpio_output(AT91_PIN_PA24, 1);
+	}
+	if (cs_mask & (1 << 2)) {
+		at91_set_gpio_output(AT91_PIN_PA25, 1);
+	}
+	if (cs_mask & (1 << 3)) {
+		at91_set_gpio_output(AT91_PIN_PA26, 1);
+	}
+}

cpu/arm926ejs/at91/at91sam9263_spi.c

@@ -0,0 +1,75 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop@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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+
+void at91_spi0_hw_init(unsigned long cs_mask)
+{
+	at91_set_B_periph(AT91_PIN_PA0, 0);	/* SPI0_MISO */
+	at91_set_B_periph(AT91_PIN_PA1, 0);	/* SPI0_MOSI */
+	at91_set_B_periph(AT91_PIN_PA2, 0);	/* SPI0_SPCK */
+
+	/* Enable clock */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_SPI0);
+
+	if (cs_mask & (1 << 0)) {
+		at91_set_gpio_output(AT91_PIN_PA5, 1);
+	}
+	if (cs_mask & (1 << 1)) {
+		at91_set_gpio_output(AT91_PIN_PA3, 1);
+	}
+	if (cs_mask & (1 << 2)) {
+		at91_set_gpio_output(AT91_PIN_PA4, 1);
+	}
+	if (cs_mask & (1 << 3)) {
+		at91_set_gpio_output(AT91_PIN_PB11, 1);
+	}
+}
+
+void at91_spi1_hw_init(unsigned long cs_mask)
+{
+	at91_set_A_periph(AT91_PIN_PB12, 0);	/* SPI1_MISO */
+	at91_set_A_periph(AT91_PIN_PB13, 0);	/* SPI1_MOSI */
+	at91_set_A_periph(AT91_PIN_PB14, 0);	/* SPI1_SPCK */
+
+	/* Enable clock */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_SPI1);
+
+	if (cs_mask & (1 << 0)) {
+		at91_set_gpio_output(AT91_PIN_PB15, 1);
+	}
+	if (cs_mask & (1 << 1)) {
+		at91_set_gpio_output(AT91_PIN_PB16, 1);
+	}
+	if (cs_mask & (1 << 2)) {
+		at91_set_gpio_output(AT91_PIN_PB17, 1);
+	}
+	if (cs_mask & (1 << 3)) {
+		at91_set_gpio_output(AT91_PIN_PB18, 1);
+	}
+}

cpu/arm926ejs/at91/at91sam9rl_spi.c

@@ -0,0 +1,52 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop@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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+
+void at91_spi0_hw_init(unsigned long cs_mask)
+{
+	at91_set_A_periph(AT91_PIN_PA25, 0);	/* SPI0_MISO */
+	at91_set_A_periph(AT91_PIN_PA26, 0);	/* SPI0_MOSI */
+	at91_set_A_periph(AT91_PIN_PA27, 0);	/* SPI0_SPCK */
+
+	/* Enable clock */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_SPI);
+
+	if (cs_mask & (1 << 0)) {
+		at91_set_gpio_output(AT91_PIN_PA28, 1);
+	}
+	if (cs_mask & (1 << 1)) {
+		at91_set_gpio_output(AT91_PIN_PB7, 1);
+	}
+	if (cs_mask & (1 << 2)) {
+		at91_set_gpio_output(AT91_PIN_PD8, 1);
+	}
+	if (cs_mask & (1 << 3)) {
+		at91_set_gpio_output(AT91_PIN_PD9, 1);
+	}
+}

include/asm-arm/arch-at91/at91_common.h

@@ -30,5 +30,7 @@ void at91_serial0_hw_init(void);
 void at91_serial1_hw_init(void);
 void at91_serial2_hw_init(void);
 void at91_serial3_hw_init(void);
+void at91_spi0_hw_init(unsigned long cs_mask);
+void at91_spi1_hw_init(unsigned long cs_mask);
 
 #endif /* AT91_COMMON_H */