[PATCH v5 19/39] board: dragonboard820c: use LINUX_KERNEL_IMAGE_HEADER

[Caleb Connolly]

db820c predated support for prepending the kernel image header
automatically, drop it's custom linker script and head.S in favour of
this generic support.

Reviewed-by: Neil Armstrong <neil.armstrong at linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas at linaro.org>
Reviewed-by: Sumit Garg <sumit.garg at linaro.org>
Tested-by: Sumit Garg <sumit.garg at linaro.org> #qcs404
Signed-off-by: Caleb Connolly <caleb.connolly at linaro.org>
---
 arch/arm/mach-snapdragon/Kconfig          |   1 +
 board/qualcomm/dragonboard820c/Makefile   |   1 -
 board/qualcomm/dragonboard820c/head.S     |  33 ---------
 board/qualcomm/dragonboard820c/u-boot.lds | 111 ------------------------------
 4 files changed, 1 insertion(+), 145 deletions(-)

diff --git a/arch/arm/mach-snapdragon/Kconfig b/arch/arm/mach-snapdragon/Kconfig
index ad6671081910..f897c393464f 100644
--- a/arch/arm/mach-snapdragon/Kconfig
+++ b/arch/arm/mach-snapdragon/Kconfig
@@ -44,8 +44,9 @@ config TARGET_DRAGONBOARD410C
 	  - 20-pin low speed and 40-pin high speed expanders, 4 LED, 3 buttons
 
 config TARGET_DRAGONBOARD820C
 	bool "96Boards Dragonboard 820C"
+	select LINUX_KERNEL_IMAGE_HEADER
 	imply CLK_QCOM_APQ8096
 	imply PINCTRL_QCOM_APQ8096
 	imply BUTTON_QCOM_PMIC
 	help
diff --git a/board/qualcomm/dragonboard820c/Makefile b/board/qualcomm/dragonboard820c/Makefile
index 643311f5b3ba..2ae6d16364aa 100644
--- a/board/qualcomm/dragonboard820c/Makefile
+++ b/board/qualcomm/dragonboard820c/Makefile
@@ -2,5 +2,4 @@
 #
 # (C) Copyright 2017 Jorge Ramirez-Ortiz <jorge.ramirez-ortiz at gmail.com>
 
 obj-y	:= dragonboard820c.o
-extra-y += head.o
diff --git a/board/qualcomm/dragonboard820c/head.S b/board/qualcomm/dragonboard820c/head.S
deleted file mode 100644
index b052a858fd32..000000000000
--- a/board/qualcomm/dragonboard820c/head.S
+++ /dev/null
@@ -1,33 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * ARM64 header for proper chain-loading with Little Kernel.
- *
- * Little Kernel shipped with Dragonboard820C boots standard Linux images for
- * ARM64. This file adds header that is required to boot U-Boot properly.
- *
- * For details see:
- * https://www.kernel.org/doc/Documentation/arm64/booting.txt
- *
- * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski at gmail.com>
- */
-
-#include <config.h>
-
-/*
- *   per document in linux/Doc/arm64/booting.text
- */
-.global _arm64_header
-_arm64_header:
-	b _start
-	.word 0
-	.quad   CONFIG_TEXT_BASE-PHYS_SDRAM_1 /* Image load offset, LE */
-	.quad   0    /* Effective size of kernel image, little-endian */
-	.quad   0    /* kernel flags, little-endian */
-	.quad   0    /* reserved */
-	.quad   0    /* reserved */
-	.quad   0    /* reserved */
-	.byte   0x41 /* Magic number, "ARM\x64" */
-	.byte   0x52
-	.byte   0x4d
-	.byte   0x64
-	.word   0    /* reserved (used for PE COFF offset) */
diff --git a/board/qualcomm/dragonboard820c/u-boot.lds b/board/qualcomm/dragonboard820c/u-boot.lds
deleted file mode 100644
index 5251b59fbe76..000000000000
--- a/board/qualcomm/dragonboard820c/u-boot.lds
+++ /dev/null
@@ -1,111 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * Override linker script for fastboot-readable images
- *
- * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski at gmail.com>
- *
- * Based on arch/arm/cpu/armv8/u-boot.lds (Just add header)
- */
-
-OUTPUT_FORMAT("elf64-littleaarch64", "elf64-littleaarch64", "elf64-littleaarch64")
-OUTPUT_ARCH(aarch64)
-ENTRY(_arm64_header)
-SECTIONS
-{
-	. = 0x00000000;
-
-	. = ALIGN(8);
-	.text :
-	{
-		*(.__image_copy_start)
-		board/qualcomm/dragonboard820c/head.o (.text*)
-		CPUDIR/start.o (.text*)
-	}
-
-	/* This needs to come before *(.text*) */
-	.efi_runtime : {
-                __efi_runtime_start = .;
-		*(.text.efi_runtime*)
-		*(.rodata.efi_runtime*)
-		*(.data.efi_runtime*)
-                __efi_runtime_stop = .;
-	}
-
-	.text_rest :
-	{
-		*(.text*)
-	}
-
-	. = ALIGN(8);
-	.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
-
-	. = ALIGN(8);
-	.data : {
-		*(.data*)
-	}
-
-	. = ALIGN(8);
-
-	. = .;
-
-	. = ALIGN(8);
-	__u_boot_list : {
-		KEEP(*(SORT(__u_boot_list*)));
-	}
-
-	. = ALIGN(8);
-
-	.efi_runtime_rel : {
-                __efi_runtime_rel_start = .;
-		*(.rel*.efi_runtime)
-		*(.rel*.efi_runtime.*)
-                __efi_runtime_rel_stop = .;
-	}
-
-	. = ALIGN(8);
-
-	.image_copy_end :
-	{
-		*(.__image_copy_end)
-	}
-
-	. = ALIGN(8);
-
-	.rel_dyn_start :
-	{
-		*(.__rel_dyn_start)
-	}
-
-	.rela.dyn : {
-		*(.rela*)
-	}
-
-	.rel_dyn_end :
-	{
-		*(.__rel_dyn_end)
-	}
-
-	_end = .;
-
-	. = ALIGN(8);
-
-	.bss_start : {
-		KEEP(*(.__bss_start));
-	}
-
-	.bss : {
-		*(.bss*)
-		 . = ALIGN(8);
-	}
-
-	.bss_end : {
-		KEEP(*(.__bss_end));
-	}
-
-	/DISCARD/ : { *(.dynsym) }
-	/DISCARD/ : { *(.dynstr*) }
-	/DISCARD/ : { *(.dynamic*) }
-	/DISCARD/ : { *(.plt*) }
-	/DISCARD/ : { *(.interp*) }
-	/DISCARD/ : { *(.gnu*) }
-}

-- 
2.43.1