sh4: use single u-boot linker script for all boards

Three supported SH4/SH4A boards with the bootloader image stored on
SPI flash have own flavour of a linker script, in turn they are equal
among each other. The only difference is that the text from
lowlevel_init.o is placed right after start.o, which makes sense.

Note that .bss section is not marked as NOLOAD, because for about
10 years this is a default option of a GNU linker, either the
attribute is found or not the resulting image file is the same.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/sh/cpu/u-boot.lds

@@ -11,6 +11,8 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
+#include "config.h"
+
 OUTPUT_FORMAT("elf32-sh-linux", "elf32-sh-linux", "elf32-sh-linux")
 OUTPUT_ARCH(sh)
 ENTRY(_start)
@@ -29,6 +31,8 @@ SECTIONS
 	.text :
 	{
 		KEEP(*/start.o		(.text))
+		KEEP(CONFIG_BOARDDIR/lowlevel_init.o	(.spiboot1.text))
+		KEEP(*(.spiboot2.text))
 		. = ALIGN(8192);
 		common/env_embedded.o	(.ppcenv)
 		. = ALIGN(8192);

board/renesas/sh7752evb/Makefile

@@ -4,4 +4,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 
 obj-y	:= sh7752evb.o spi-boot.o
-obj-y	+= lowlevel_init.o
+extra-y	+= lowlevel_init.o

board/renesas/sh7752evb/u-boot.lds

@@ -1,82 +0,0 @@
-/*
- * Copyright (C) 2007
- * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
- *
- * Copyright (C) 2012
- * Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-OUTPUT_FORMAT("elf32-sh-linux", "elf32-sh-linux", "elf32-sh-linux")
-OUTPUT_ARCH(sh)
-ENTRY(_start)
-
-SECTIONS
-{
-	/*
-	 * entry and reloct_dst will be provided via ldflags
-	 */
-	. = .;
-
-	PROVIDE (_ftext = .);
-	PROVIDE (_fcode = .);
-	PROVIDE (_start = .);
-
-	.text :
-	{
-		KEEP(arch/sh/cpu/sh4/start.o		(.text))
-		*(.spiboot1.text)
-		*(.spiboot2.text)
-		. = ALIGN(8192);
-		common/env_embedded.o	(.ppcenv)
-		. = ALIGN(8192);
-		common/env_embedded.o	(.ppcenvr)
-		. = ALIGN(8192);
-		*(.text)
-		. = ALIGN(4);
-	} =0xFF
-	PROVIDE (_ecode = .);
-	.rodata :
-	{
-		*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
-		. = ALIGN(4);
-	}
-	PROVIDE (_etext = .);
-
-
-	PROVIDE (_fdata = .);
-	.data :
-	{
-		*(.data)
-		. = ALIGN(4);
-	}
-	PROVIDE (_edata = .);
-
-	PROVIDE (_fgot = .);
-	.got :
-	{
-		*(.got)
-		. = ALIGN(4);
-	}
-	PROVIDE (_egot = .);
-
-	.u_boot_list : {
-		KEEP(*(SORT(.u_boot_list*)));
-	}
-
-	PROVIDE (__init_end = .);
-	PROVIDE (reloc_dst_end = .);
-	/* _reloc_dst_end = .; */
-
-	PROVIDE (bss_start = .);
-	PROVIDE (__bss_start = .);
-	.bss (NOLOAD) :
-	{
-		*(.bss)
-		. = ALIGN(4);
-	}
-	PROVIDE (bss_end = .);
-
-	PROVIDE (__bss_end = .);
-}

board/renesas/sh7753evb/Makefile

@@ -4,4 +4,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 
 obj-y	:= sh7753evb.o spi-boot.o
-obj-y	+= lowlevel_init.o
+extra-y	+= lowlevel_init.o

board/renesas/sh7753evb/u-boot.lds

@@ -1,82 +0,0 @@
-/*
- * Copyright (C) 2007
- * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
- *
- * Copyright (C) 2012
- * Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-OUTPUT_FORMAT("elf32-sh-linux", "elf32-sh-linux", "elf32-sh-linux")
-OUTPUT_ARCH(sh)
-ENTRY(_start)
-
-SECTIONS
-{
-	/*
-	 * entry and reloct_dst will be provided via ldflags
-	 */
-	. = .;
-
-	PROVIDE (_ftext = .);
-	PROVIDE (_fcode = .);
-	PROVIDE (_start = .);
-
-	.text :
-	{
-		KEEP(arch/sh/cpu/sh4/start.o		(.text))
-		*(.spiboot1.text)
-		*(.spiboot2.text)
-		. = ALIGN(8192);
-		common/env_embedded.o	(.ppcenv)
-		. = ALIGN(8192);
-		common/env_embedded.o	(.ppcenvr)
-		. = ALIGN(8192);
-		*(.text)
-		. = ALIGN(4);
-	} =0xFF
-	PROVIDE (_ecode = .);
-	.rodata :
-	{
-		*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
-		. = ALIGN(4);
-	}
-	PROVIDE (_etext = .);
-
-
-	PROVIDE (_fdata = .);
-	.data :
-	{
-		*(.data)
-		. = ALIGN(4);
-	}
-	PROVIDE (_edata = .);
-
-	PROVIDE (_fgot = .);
-	.got :
-	{
-		*(.got)
-		. = ALIGN(4);
-	}
-	PROVIDE (_egot = .);
-
-	.u_boot_list : {
-		KEEP(*(SORT(.u_boot_list*)));
-	}
-
-	PROVIDE (__init_end = .);
-	PROVIDE (reloc_dst_end = .);
-	/* _reloc_dst_end = .; */
-
-	PROVIDE (bss_start = .);
-	PROVIDE (__bss_start = .);
-	.bss (NOLOAD) :
-	{
-		*(.bss)
-		. = ALIGN(4);
-	}
-	PROVIDE (bss_end = .);
-
-	PROVIDE (__bss_end = .);
-}

board/renesas/sh7757lcr/Makefile

@@ -4,4 +4,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 
 obj-y	:= sh7757lcr.o spi-boot.o
-obj-y	+= lowlevel_init.o
+extra-y	+= lowlevel_init.o

board/renesas/sh7757lcr/u-boot.lds

@@ -1,83 +0,0 @@
-/*
- * Copyright (C) 2007
- * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
- *
- * Copyright (C) 2011
- * Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-OUTPUT_FORMAT("elf32-sh-linux", "elf32-sh-linux", "elf32-sh-linux")
-OUTPUT_ARCH(sh)
-ENTRY(_start)
-
-SECTIONS
-{
-	/*
-	 * entry and reloct_dst will be provided via ldflags
-	 */
-	. = .;
-
-	PROVIDE (_ftext = .);
-	PROVIDE (_fcode = .);
-	PROVIDE (_start = .);
-
-	.text :
-	{
-		KEEP(arch/sh/cpu/sh4/start.o		(.text))
-		*(.spiboot1.text)
-		*(.spiboot2.text)
-		. = ALIGN(8192);
-		common/env_embedded.o	(.ppcenv)
-		. = ALIGN(8192);
-		common/env_embedded.o	(.ppcenvr)
-		. = ALIGN(8192);
-		*(.text)
-		. = ALIGN(4);
-	} =0xFF
-	PROVIDE (_ecode = .);
-	.rodata :
-	{
-		*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
-		. = ALIGN(4);
-	}
-	PROVIDE (_etext = .);
-
-
-	PROVIDE (_fdata = .);
-	.data :
-	{
-		*(.data)
-		. = ALIGN(4);
-	}
-	PROVIDE (_edata = .);
-
-	PROVIDE (_fgot = .);
-	.got :
-	{
-		*(.got)
-		. = ALIGN(4);
-	}
-	PROVIDE (_egot = .);
-
-
-	.u_boot_list : {
-		KEEP(*(SORT(.u_boot_list*)));
-	}
-
-	PROVIDE (__init_end = .);
-	PROVIDE (reloc_dst_end = .);
-	/* _reloc_dst_end = .; */
-
-	PROVIDE (bss_start = .);
-	PROVIDE (__bss_start = .);
-	.bss (NOLOAD) :
-	{
-		*(.bss)
-		. = ALIGN(4);
-	}
-	PROVIDE (bss_end = .);
-
-	PROVIDE (__bss_end = .);
-}

include/configs/sh7752evb.h

@@ -14,7 +14,6 @@
 #define CONFIG_SH7752EVB	1
 
 #define CONFIG_SYS_TEXT_BASE	0x5ff80000
-#define CONFIG_SYS_LDSCRIPT	"board/renesas/sh7752evb/u-boot.lds"
 
 #define CONFIG_CMD_DFL
 #define CONFIG_CMD_SDRAM

include/configs/sh7753evb.h

@@ -14,7 +14,6 @@
 #define CONFIG_SH7753EVB	1
 
 #define CONFIG_SYS_TEXT_BASE	0x5ff80000
-#define CONFIG_SYS_LDSCRIPT	"board/renesas/sh7753evb/u-boot.lds"
 
 #define CONFIG_CMD_DFL
 #define CONFIG_CMD_SDRAM

include/configs/sh7757lcr.h

@@ -15,7 +15,6 @@
 #define CONFIG_SH7757LCR_DDR_ECC	1
 
 #define CONFIG_SYS_TEXT_BASE	0x8ef80000
-#define CONFIG_SYS_LDSCRIPT	"board/renesas/sh7757lcr/u-boot.lds"
 
 #define CONFIG_CMD_SDRAM
 #define CONFIG_CMD_MD5SUM