tegra: clean up board include hell

The prototypes used in board files were all scattered out, which lead to
code duplication between SPL and normal U-Boot and some prototypes not actually
being used. Consolidate this in a common board header.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

arch/arm/cpu/arm720t/tegra-common/board.h

@@ -1,25 +0,0 @@
-/*
- * (C) Copyright 2010-2011
- * NVIDIA Corporation <www.nvidia.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
- */
-
-void board_init_uart_f(void);
-void gpio_early_init_uart(void);

arch/arm/cpu/arm720t/tegra-common/spl.c

@@ -33,13 +33,13 @@
 #include <image.h>
 #include <malloc.h>
 #include <linux/compiler.h>
-#include "board.h"
 #include "cpu.h"
 
 #include <asm/io.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/pinmux.h>
 #include <asm/arch/tegra.h>
+#include <asm/arch-tegra/board.h>
 #include <asm/arch-tegra/clk_rst.h>
 #include <asm/arch-tegra/pmc.h>
 #include <asm/arch-tegra/scu.h>

arch/arm/cpu/tegra-common/board.c

@@ -26,6 +26,7 @@
 #include <asm/arch/clock.h>
 #include <asm/arch/funcmux.h>
 #include <asm/arch/tegra.h>
+#include <asm/arch-tegra/board.h>
 #include <asm/arch-tegra/pmc.h>
 #include <asm/arch-tegra/sys_proto.h>
 #include <asm/arch-tegra/warmboot.h>

arch/arm/include/asm/arch-tegra/board.h

@@ -24,7 +24,24 @@
 #ifndef _TEGRA_BOARD_H_
 #define _TEGRA_BOARD_H_
 
-/* Setup UARTs for the board according to the selected config */
+/* Set up pinmux to make UART usable */
+void gpio_config_uart(void);      /* CONFIG_SPI_UART_SWITCH */
+void gpio_early_init_uart(void);  /*!CONFIG_SPI_UART_SWITCH */
+
+/* Set up early UART output */
 void board_init_uart_f(void);
 
+/* Set up any early GPIOs the board might need for proper operation */
+void gpio_early_init(void);  /* overrideable GPIO config        */
+
+/*
+ * Hooks to allow boards to set up the pinmux for a specific function.
+ * Has to be implemented in the board files as we don't yet support pinmux
+ * setup from FTD. If a board file does not implement one of those functions
+ * an empty stub function will be called.
+ */
+
+void pin_mux_usb(void);      /* overrideable USB pinmux setup   */
+void pin_mux_spi(void);      /* overrideable SPI pinmux setup   */
+
 #endif

board/nvidia/common/board.c

@@ -39,7 +39,6 @@
 #include <asm/arch-tegra/warmboot.h>
 #include <spi.h>
 #include <i2c.h>
-#include "board.h"
 #include "emc.h"
 
 DECLARE_GLOBAL_DATA_PTR;

board/nvidia/common/board.h

@@ -1,37 +0,0 @@
-/*
- *  (C) Copyright 2010,2011
- *  NVIDIA Corporation <www.nvidia.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
- */
-
-#ifndef _BOARD_H_
-#define _BOARD_H_
-
-void gpio_config_uart(void);
-void gpio_early_init(void);
-void gpio_early_init_uart(void);
-
-/*
- * Set up any pin muxing needed for USB (for now, since fdt doesn't support
- * it). Boards can overwrite the default fucction which does nothing.
- */
-void pin_mux_usb(void);
-
-#endif	/* BOARD_H */

board/nvidia/common/uart-spi-switch.c

@@ -26,7 +26,7 @@
 #include <asm/arch/uart-spi-switch.h>
 #include <asm/arch/tegra.h>
 #include <asm/arch-tegra/tegra_spi.h>
-
+#include <asm/arch-tegra/board.h>
 
 /* position of the UART/SPI select switch */
 enum spi_uart_switch {