SPL: Move the omap SPL framework to common/spl

Add a new flag, CONFIG_SPL_FRAMEWORK to opt into the common/spl SPL
framework, enable on all of the previously using boards.  We move the
spl_ymodem.c portion to common/ and spl_mmc.c to drivers/mmc/.  We leave
the NAND one in-place as we plan to replace it later in this series.

We use common/spl to avoid linker problems with respect to merging
constant strings in objects.   Otherwise all strings in common/ will be
linked in and kept which grows SPL in size too much.

Signed-off-by: Tom Rini <trini@ti.com>

README

@@ -2597,6 +2597,11 @@ FIT uImage format:
 		CONFIG_SYS_SPL_MALLOC_SIZE
 		The size of the malloc pool used in SPL.
 
+		CONFIG_SPL_FRAMEWORK
+		Enable the SPL framework under common/.  This framework
+		supports MMC, NAND and YMODEM loading of U-Boot and NAND
+		NAND loading of the Linux Kernel.
+
 		CONFIG_SPL_DISPLAY_PRINT
 		For ARM, enable an optional function to print more information
 		about the running system.

arch/arm/cpu/armv7/am33xx/board.c

@@ -18,6 +18,7 @@
 
 #include <common.h>
 #include <errno.h>
+#include <spl.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/omap.h>
@@ -29,7 +30,6 @@
 #include <asm/io.h>
 #include <asm/emif.h>
 #include <asm/gpio.h>
-#include <asm/spl.h>
 #include <i2c.h>
 #include <miiphy.h>
 #include <cpsw.h>

arch/arm/cpu/armv7/omap-common/Makefile

@@ -43,16 +43,9 @@ SOBJS	+= lowlevel_init.o
 endif
 
 ifdef CONFIG_SPL_BUILD
-COBJS	+= spl.o
 ifdef CONFIG_SPL_NAND_SUPPORT
 COBJS	+= spl_nand.o
 endif
-ifdef CONFIG_SPL_MMC_SUPPORT
-COBJS	+= spl_mmc.o
-endif
-ifdef CONFIG_SPL_YMODEM_SUPPORT
-COBJS	+= spl_ymodem.o
-endif
 endif
 
 ifndef CONFIG_SPL_BUILD

arch/arm/cpu/armv7/omap-common/boot-common.c

@@ -17,7 +17,7 @@
  */
 
 #include <common.h>
-#include <asm/spl.h>
+#include <spl.h>
 #include <asm/omap_common.h>
 #include <asm/arch/omap.h>
 #include <asm/arch/mmc_host_def.h>

arch/arm/cpu/armv7/omap-common/hwinit-common.c

@@ -28,10 +28,10 @@
  * MA 02111-1307 USA
  */
 #include <common.h>
+#include <spl.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/sizes.h>
 #include <asm/emif.h>
-#include <asm/spl.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 

arch/arm/cpu/armv7/omap-common/spl_nand.c

@@ -21,7 +21,7 @@
  * MA 02111-1307 USA
  */
 #include <common.h>
-#include <asm/spl.h>
+#include <spl.h>
 #include <asm/u-boot.h>
 #include <asm/utils.h>
 #include <asm/io.h>

arch/arm/cpu/armv7/omap3/board.c

@@ -33,13 +33,13 @@
  * MA 02111-1307 USA
  */
 #include <common.h>
+#include <spl.h>
 #include <asm/io.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/arch/mem.h>
 #include <asm/cache.h>
 #include <asm/armv7.h>
 #include <asm/arch/gpio.h>
-#include <asm/spl.h>
 #include <asm/omap_common.h>
 #include <asm/arch/mmc_host_def.h>
 #include <i2c.h>

arch/arm/include/asm/spl.h

@@ -26,44 +26,4 @@
 /* Platform-specific defines */
 #include <asm/arch/spl.h>
 
-/* Boot type */
-#define MMCSD_MODE_UNDEFINED	0
-#define MMCSD_MODE_RAW		1
-#define MMCSD_MODE_FAT		2
-
-struct spl_image_info {
-	const char *name;
-	u8 os;
-	u32 load_addr;
-	u32 entry_point;
-	u32 size;
-};
-
-extern struct spl_image_info spl_image;
-extern u32 *boot_params_ptr;
-
-/* SPL common functions */
-void preloader_console_init(void);
-u32 spl_boot_device(void);
-u32 spl_boot_mode(void);
-void spl_parse_image_header(const struct image_header *header);
-void spl_board_prepare_for_linux(void);
-int spl_start_uboot(void);
-void spl_display_print(void);
-
-/* NAND SPL functions */
-void spl_nand_load_image(void);
-
-/* MMC SPL functions */
-void spl_mmc_load_image(void);
-
-/* YMODEM SPL functions */
-void spl_ymodem_load_image(void);
-
-/* SPI SPL functions */
-void spi_boot(void);
-
-#ifdef CONFIG_SPL_BOARD_INIT
-void spl_board_init(void);
-#endif
 #endif

common/spl/Makefile

@@ -0,0 +1,37 @@
+#
+# (C) Copyright 2012
+# Texas Instruments Incorporated - http://www.ti.com/
+# Aneesh V <aneesh@ti.com>
+#
+# This file is released under the terms of GPL v2 and any later version.
+# See the file COPYING in the root directory of the source tree for details.
+#
+# Based on common/Makefile.
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)libspl.o
+
+ifdef CONFIG_SPL_BUILD
+COBJS-$(CONFIG_SPL_FRAMEWORK) += spl.o
+COBJS-$(CONFIG_SPL_YMODEM_SUPPORT) += spl_ymodem.o
+endif
+
+COBJS	:= $(sort $(COBJS-y))
+SRCS	:= $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS-y))
+
+all:	$(obj).depend $(LIB)
+
+$(LIB):	$(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################

common/spl/spl.c

@@ -23,9 +23,8 @@
  * MA 02111-1307 USA
  */
 #include <common.h>
-#include <asm/spl.h>
+#include <spl.h>
 #include <asm/u-boot.h>
-#include <asm/utils.h>
 #include <nand.h>
 #include <fat.h>
 #include <version.h>

common/spl/spl_ymodem.c

@@ -26,11 +26,10 @@
  * MA 02111-1307 USA
  */
 #include <common.h>
-#include <asm/spl.h>
+#include <spl.h>
 #include <xyzModem.h>
 #include <asm/u-boot.h>
 #include <asm/utils.h>
-#include <asm/arch/sys_proto.h>
 
 #define BUF_SIZE 1024
 

drivers/mmc/Makefile

@@ -25,8 +25,11 @@ include $(TOPDIR)/config.mk
 
 LIB	:= $(obj)libmmc.o
 
-ifdef CONFIG_SPL_MMC_LOAD
+ifdef CONFIG_SPL_BUILD
 COBJS-$(CONFIG_SPL_MMC_LOAD)	+= spl_mmc_load.o
+ifdef CONFIG_SPL_FRAMEWORK
+COBJS-$(CONFIG_SPL_MMC_SUPPORT) += spl_mmc.o
+endif
 endif
 
 COBJS-$(CONFIG_BFIN_SDH) += bfin_sdh.o

drivers/mmc/spl_mmc.c

@@ -23,7 +23,7 @@
  * MA 02111-1307 USA
  */
 #include <common.h>
-#include <asm/spl.h>
+#include <spl.h>
 #include <asm/u-boot.h>
 #include <asm/utils.h>
 #include <mmc.h>

include/configs/am335x_evm.h

@@ -193,6 +193,7 @@
 
 /* Defines for SPL */
 #define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
 #define CONFIG_SPL_TEXT_BASE		0x402F0400
 #define CONFIG_SPL_MAX_SIZE		(46 * 1024)
 #define CONFIG_SPL_STACK		CONFIG_SYS_INIT_SP_ADDR

include/configs/am3517_crane.h

@@ -314,6 +314,7 @@
 
 /* Defines for SPL */
 #define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
 #define CONFIG_SPL_BOARD_INIT
 #define CONFIG_SPL_NAND_SIMPLE
 #define CONFIG_SPL_TEXT_BASE		0x40200800

include/configs/am3517_evm.h

@@ -313,6 +313,7 @@
 
 /* Defines for SPL */
 #define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
 #define CONFIG_SPL_BOARD_INIT
 #define CONFIG_SPL_NAND_SIMPLE
 #define CONFIG_SPL_TEXT_BASE		0x40200800

include/configs/devkit8000.h

@@ -303,6 +303,7 @@
 
 /* Defines for SPL */
 #define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
 #define CONFIG_SPL_NAND_SIMPLE
 
 #define CONFIG_SPL_LIBCOMMON_SUPPORT

include/configs/igep00x0.h

@@ -295,6 +295,7 @@
 
 /* SPL */
 #define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
 #define CONFIG_SPL_NAND_SIMPLE
 #define CONFIG_SPL_TEXT_BASE		0x40200800
 #define CONFIG_SPL_MAX_SIZE		(54 * 1024)

include/configs/mcx.h

@@ -359,6 +359,7 @@
 
 /* Defines for SPL */
 #define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
 #define CONFIG_SPL_BOARD_INIT
 #define CONFIG_SPL_NAND_SIMPLE
 #define CONFIG_SPL_NAND_SOFTECC

include/configs/omap3_beagle.h

@@ -391,6 +391,7 @@
 
 /* Defines for SPL */
 #define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
 #define CONFIG_SPL_NAND_SIMPLE
 #define CONFIG_SPL_TEXT_BASE		0x40200800
 #define CONFIG_SPL_MAX_SIZE		(54 * 1024)	/* 8 KB for stack */

include/configs/omap3_evm_common.h

@@ -273,6 +273,7 @@
 
 /* Defines for SPL */
 #define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
 #define CONFIG_SPL_TEXT_BASE		0x40200800
 #define CONFIG_SPL_MAX_SIZE		(54 * 1024)	/* 8 KB for stack */
 #define CONFIG_SPL_STACK		LOW_LEVEL_SRAM_STACK

include/configs/omap3_overo.h

@@ -293,6 +293,7 @@
 
 /* Defines for SPL */
 #define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
 #define CONFIG_SPL_NAND_SIMPLE
 #define CONFIG_SPL_TEXT_BASE		0x40200800
 #define CONFIG_SPL_MAX_SIZE		(54 * 1024)	/* 8 KB for stack */

include/configs/omap4_common.h

@@ -232,6 +232,7 @@
 
 /* Defines for SPL */
 #define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
 #define CONFIG_SPL_TEXT_BASE		0x40304350
 #define CONFIG_SPL_MAX_SIZE		(38 * 1024)
 #define CONFIG_SPL_STACK		CONFIG_SYS_INIT_SP_ADDR

include/configs/omap5_evm.h

@@ -229,6 +229,7 @@
 
 /* Defines for SPL */
 #define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
 #define CONFIG_SPL_TEXT_BASE		0x40300350
 #define CONFIG_SPL_MAX_SIZE		0x19000	/* 100K */
 #define CONFIG_SPL_STACK		CONFIG_SYS_INIT_SP_ADDR

include/configs/tam3517-common.h

@@ -239,6 +239,7 @@
 
 /* Defines for SPL */
 #define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
 #define CONFIG_SPL_BOARD_INIT
 #define CONFIG_SPL_CONSOLE
 #define CONFIG_SPL_NAND_SIMPLE

include/configs/tricorder.h

@@ -271,6 +271,7 @@
 
 /* Defines for SPL */
 #define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
 #define CONFIG_SPL_NAND_SIMPLE
 
 #define CONFIG_SPL_BOARD_INIT

include/spl.h

@@ -0,0 +1,69 @@
+/*
+ * (C) Copyright 2012
+ * Texas Instruments, <www.ti.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	_SPL_H_
+#define	_SPL_H_
+
+/* Platform-specific defines */
+#include <asm/spl.h>
+
+/* Boot type */
+#define MMCSD_MODE_UNDEFINED	0
+#define MMCSD_MODE_RAW		1
+#define MMCSD_MODE_FAT		2
+
+struct spl_image_info {
+	const char *name;
+	u8 os;
+	u32 load_addr;
+	u32 entry_point;
+	u32 size;
+};
+
+extern struct spl_image_info spl_image;
+extern u32 *boot_params_ptr;
+
+/* SPL common functions */
+void preloader_console_init(void);
+u32 spl_boot_device(void);
+u32 spl_boot_mode(void);
+void spl_parse_image_header(const struct image_header *header);
+void spl_board_prepare_for_linux(void);
+int spl_start_uboot(void);
+void spl_display_print(void);
+
+/* NAND SPL functions */
+void spl_nand_load_image(void);
+
+/* MMC SPL functions */
+void spl_mmc_load_image(void);
+
+/* YMODEM SPL functions */
+void spl_ymodem_load_image(void);
+
+/* SPI SPL functions */
+void spi_boot(void);
+
+#ifdef CONFIG_SPL_BOARD_INIT
+void spl_board_init(void);
+#endif
+#endif

spl/Makefile

@@ -41,6 +41,7 @@ endif
 LIBS-y += board/$(BOARDDIR)/lib$(BOARD).o
 LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/lib$(VENDOR).o
 
+LIBS-$(CONFIG_SPL_FRAMEWORK) += common/spl/libspl.o
 LIBS-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/libcommon.o
 LIBS-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/libdisk.o
 LIBS-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/libi2c.o