Drop ELF remains from boot code

This stuff is not used, so let's drop it.

Change-Id: I671a5e87855b4c59622cafacdefe466ab3d70143
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3660
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

5 files changed, 28 insertions, 266 deletions

diff --git a/src/arch/armv7/boot.c b/src/arch/armv7/boot.c
index ab531be868..677480230b 100644
--- a/src/arch/armv7/boot.c
+++ b/src/arch/armv7/boot.c
@@ -1,189 +1,27 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * 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; version 2 of the License.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
 #include <console/console.h>
-#include <ip_checksum.h>
-#include <boot/elf.h>
-#include <boot/elf_boot.h>
-#include <string.h>
-#include <cpu/x86/multiboot.h>
 #include <arch/stages.h>
 
-
-#ifndef CMD_LINE
-#define CMD_LINE ""
-#endif
-
-
-
-#define UPSZ(X) ((sizeof(X) + 3) &~3)
-
-static struct {
-	Elf_Bhdr hdr;
-	Elf_Nhdr ft_hdr;
-	unsigned char ft_desc[UPSZ(FIRMWARE_TYPE)];
-	Elf_Nhdr bl_hdr;
-	unsigned char bl_desc[UPSZ(BOOTLOADER)];
-	Elf_Nhdr blv_hdr;
-	unsigned char blv_desc[UPSZ(BOOTLOADER_VERSION)];
-	Elf_Nhdr cmd_hdr;
-	unsigned char cmd_desc[UPSZ(CMD_LINE)];
-} elf_boot_notes = {
-	.hdr = {
-		.b_signature = 0x0E1FB007,
-		.b_size = sizeof(elf_boot_notes),
-		.b_checksum = 0,
-		.b_records = 4,
-	},
-	.ft_hdr = {
-		.n_namesz = 0,
-		.n_descsz = sizeof(FIRMWARE_TYPE),
-		.n_type = EBN_FIRMWARE_TYPE,
-	},
-	.ft_desc = FIRMWARE_TYPE,
-	.bl_hdr = {
-		.n_namesz = 0,
-		.n_descsz = sizeof(BOOTLOADER),
-		.n_type = EBN_BOOTLOADER_NAME,
-	},
-	.bl_desc = BOOTLOADER,
-	.blv_hdr = {
-		.n_namesz = 0,
-		.n_descsz = sizeof(BOOTLOADER_VERSION),
-		.n_type = EBN_BOOTLOADER_VERSION,
-	},
-	.blv_desc = BOOTLOADER_VERSION,
-	.cmd_hdr = {
-		.n_namesz = 0,
-		.n_descsz = sizeof(CMD_LINE),
-		.n_type = EBN_COMMAND_LINE,
-	},
-	.cmd_desc = CMD_LINE,
-};
-
-
-int elf_check_arch(Elf_ehdr *ehdr)
-{
-	return (
-		((ehdr->e_machine == EM_386) ||	(ehdr->e_machine == EM_486)) &&
-		(ehdr->e_ident[EI_CLASS] == ELFCLASS32) &&
-		(ehdr->e_ident[EI_DATA] == ELFDATA2LSB)
-		);
-
-}
-
 void jmp_to_elf_entry(void *entry, unsigned long buffer, unsigned long size)
 {
-	extern unsigned char _ram_seg, _eram_seg;
-	unsigned long lb_start, lb_size;
-	unsigned long adjust, adjusted_boot_notes;
-
-	elf_boot_notes.hdr.b_checksum =
-		compute_ip_checksum(&elf_boot_notes, sizeof(elf_boot_notes));
-
-	lb_start = (unsigned long)&_ram_seg;
-	lb_size = (unsigned long)(&_eram_seg - &_ram_seg);
-	adjust = buffer +  size - lb_start;
-
-	adjusted_boot_notes = (unsigned long)&elf_boot_notes;
-	adjusted_boot_notes += adjust;
-
-	printk(BIOS_SPEW, "entry    = 0x%08lx\n", (unsigned long)entry);
-	printk(BIOS_SPEW, "lb_start = 0x%08lx\n", lb_start);
-	printk(BIOS_SPEW, "lb_size  = 0x%08lx\n", lb_size);
-	printk(BIOS_SPEW, "adjust   = 0x%08lx\n", adjust);
-	printk(BIOS_SPEW, "buffer   = 0x%08lx\n", buffer);
-	printk(BIOS_SPEW, "     elf_boot_notes = 0x%08lx\n", (unsigned long)&elf_boot_notes);
-	printk(BIOS_SPEW, "adjusted_boot_notes = 0x%08lx\n", adjusted_boot_notes);
-
+	printk(BIOS_SPEW, "entry    = %p\n", entry);
 	stage_exit(entry);
-#if 0
-	/* FIXME: do we need any of this? */
-	/* Jump to kernel */
-	__asm__ __volatile__(
-		"	cld	\n\t"
-		/* Save the callee save registers... */
-		"	pushl	%%esi\n\t"
-		"	pushl	%%edi\n\t"
-		"	pushl	%%ebx\n\t"
-		/* Save the parameters I was passed */
-		"	pushl	$0\n\t" /* 20 adjust */
-	        "	pushl	%0\n\t" /* 16 lb_start */
-		"	pushl	%1\n\t" /* 12 buffer */
-		"	pushl	%2\n\t" /*  8 lb_size */
-		"	pushl	%3\n\t" /*  4 entry */
-		"	pushl	%4\n\t" /*  0 elf_boot_notes */
-		/* Compute the adjustment */
-		"	xorl	%%eax, %%eax\n\t"
-		"	subl	16(%%esp), %%eax\n\t"
-		"	addl	12(%%esp), %%eax\n\t"
-		"	addl	 8(%%esp), %%eax\n\t"
-		"	movl	%%eax, 20(%%esp)\n\t"
-		/* Place a copy of coreboot in its new location */
-		/* Move ``longs'' the coreboot size is 4 byte aligned */
-		"	movl	12(%%esp), %%edi\n\t"
-		"	addl	 8(%%esp), %%edi\n\t"
-		"	movl	16(%%esp), %%esi\n\t"
-		"	movl	 8(%%esp), %%ecx\n\n"
-		"	shrl	$2, %%ecx\n\t"
-		"	rep	movsl\n\t"
-
-		/* Adjust the stack pointer to point into the new coreboot image */
-		"	addl	20(%%esp), %%esp\n\t"
-		/* Adjust the instruction pointer to point into the new coreboot image */
-		"	movl	$1f, %%eax\n\t"
-		"	addl	20(%%esp), %%eax\n\t"
-		"	jmp	*%%eax\n\t"
-		"1:	\n\t"
-
-		/* Copy the coreboot bounce buffer over coreboot */
-		/* Move ``longs'' the coreboot size is 4 byte aligned */
-		"	movl	16(%%esp), %%edi\n\t"
-		"	movl	12(%%esp), %%esi\n\t"
-		"	movl	 8(%%esp), %%ecx\n\t"
-		"	shrl	$2, %%ecx\n\t"
-		"	rep	movsl\n\t"
-
-		/* Now jump to the loaded image */
-		"	movl	%5, %%eax\n\t"
-		"	movl	 0(%%esp), %%ebx\n\t"
-		"	call	*4(%%esp)\n\t"
-
-		/* The loaded image returned? */
-		"	cli	\n\t"
-		"	cld	\n\t"
-
-		/* Copy the saved copy of coreboot where coreboot runs */
-		/* Move ``longs'' the coreboot size is 4 byte aligned */
-		"	movl	16(%%esp), %%edi\n\t"
-		"	movl	12(%%esp), %%esi\n\t"
-		"	addl	 8(%%esp), %%esi\n\t"
-		"	movl	 8(%%esp), %%ecx\n\t"
-		"	shrl	$2, %%ecx\n\t"
-		"	rep	movsl\n\t"
-
-		/* Adjust the stack pointer to point into the old coreboot image */
-		"	subl	20(%%esp), %%esp\n\t"
-
-		/* Adjust the instruction pointer to point into the old coreboot image */
-		"	movl	$1f, %%eax\n\t"
-		"	subl	20(%%esp), %%eax\n\t"
-		"	jmp	*%%eax\n\t"
-		"1:	\n\t"
-
-		/* Drop the parameters I was passed */
-		"	addl	$24, %%esp\n\t"
-
-		/* Restore the callee save registers */
-		"	popl	%%ebx\n\t"
-		"	popl	%%edi\n\t"
-		"	popl	%%esi\n\t"
-
-		::
-		"ri" (lb_start), "ri" (buffer), "ri" (lb_size),
-		"ri" (entry),
-#if CONFIG_MULTIBOOT
-		"ri"(mbi), "ri" (MB_MAGIC2)
-#else
-		"ri"(adjusted_boot_notes), "ri" (0x0E1FB007)
-#endif
-		);
-#endif
 }
diff --git a/src/arch/armv7/include/arch/stages.h b/src/arch/armv7/include/arch/stages.h
index 671c02b3dd..3fd54b9bb4 100644
--- a/src/arch/armv7/include/arch/stages.h
+++ b/src/arch/armv7/include/arch/stages.h
@@ -24,5 +24,6 @@ extern void main(void);
 
 void stage_entry(void) __attribute__((section(".text.stage_entry.armv7")));
 void stage_exit(void *);
+void jmp_to_elf_entry(void *entry, unsigned long buffer, unsigned long size);
 
 #endif
diff --git a/src/arch/armv7/stages.c b/src/arch/armv7/stages.c
index e26dbe5e81..0d2072de50 100644
--- a/src/arch/armv7/stages.c
+++ b/src/arch/armv7/stages.c
@@ -1,7 +1,7 @@
 /*
  * This file is part of the coreboot project.
  *
- * Copyright (C) 2012 The ChromiumOS Authors.  All rights reserved.
+ * Copyright 2012 Google Inc.
  *
  * 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
@@ -15,7 +15,9 @@
  * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
+ */
+
+/*
  * This file contains entry/exit functions for each stage during coreboot
  * execution (bootblock entry and ramstage exit will depend on external
  * loading.
diff --git a/src/arch/x86/boot/boot.c b/src/arch/x86/boot/boot.c
index 4892c5e009..7fc433db22 100644
--- a/src/arch/x86/boot/boot.c
+++ b/src/arch/x86/boot/boot.c
@@ -1,81 +1,14 @@
 #include <console/console.h>
+#include <arch/stages.h>
 #include <ip_checksum.h>
-#include <boot/elf.h>
-#include <boot/elf_boot.h>
 #include <string.h>
 #include <cpu/x86/multiboot.h>
 
-
-#ifndef CMD_LINE
-#define CMD_LINE ""
-#endif
-
-
-
-#define UPSZ(X) ((sizeof(X) + 3) &~3)
-
-static struct {
-	Elf_Bhdr hdr;
-	Elf_Nhdr ft_hdr;
-	unsigned char ft_desc[UPSZ(FIRMWARE_TYPE)];
-	Elf_Nhdr bl_hdr;
-	unsigned char bl_desc[UPSZ(BOOTLOADER)];
-	Elf_Nhdr blv_hdr;
-	unsigned char blv_desc[UPSZ(BOOTLOADER_VERSION)];
-	Elf_Nhdr cmd_hdr;
-	unsigned char cmd_desc[UPSZ(CMD_LINE)];
-} elf_boot_notes = {
-	.hdr = {
-		.b_signature = 0x0E1FB007,
-		.b_size = sizeof(elf_boot_notes),
-		.b_checksum = 0,
-		.b_records = 4,
-	},
-	.ft_hdr = {
-		.n_namesz = 0,
-		.n_descsz = sizeof(FIRMWARE_TYPE),
-		.n_type = EBN_FIRMWARE_TYPE,
-	},
-	.ft_desc = FIRMWARE_TYPE,
-	.bl_hdr = {
-		.n_namesz = 0,
-		.n_descsz = sizeof(BOOTLOADER),
-		.n_type = EBN_BOOTLOADER_NAME,
-	},
-	.bl_desc = BOOTLOADER,
-	.blv_hdr = {
-		.n_namesz = 0,
-		.n_descsz = sizeof(BOOTLOADER_VERSION),
-		.n_type = EBN_BOOTLOADER_VERSION,
-	},
-	.blv_desc = BOOTLOADER_VERSION,
-	.cmd_hdr = {
-		.n_namesz = 0,
-		.n_descsz = sizeof(CMD_LINE),
-		.n_type = EBN_COMMAND_LINE,
-	},
-	.cmd_desc = CMD_LINE,
-};
-
-
-int elf_check_arch(Elf_ehdr *ehdr)
-{
-	return (
-		((ehdr->e_machine == EM_386) ||	(ehdr->e_machine == EM_486)) &&
-		(ehdr->e_ident[EI_CLASS] == ELFCLASS32) &&
-		(ehdr->e_ident[EI_DATA] == ELFDATA2LSB)
-		);
-
-}
-
 #if CONFIG_RELOCATABLE_RAMSTAGE
 /* When the ramstage is relocatable the elf loading ensures an elf image cannot
  * be loaded over the ramstage code. */
 void jmp_to_elf_entry(void *entry, unsigned long unused1, unsigned long unused2)
 {
-	elf_boot_notes.hdr.b_checksum =
-		compute_ip_checksum(&elf_boot_notes, sizeof(elf_boot_notes));
-
 	/* Jump to kernel */
 	__asm__ __volatile__(
 		"	cld	\n\t"
@@ -90,8 +23,6 @@ void jmp_to_elf_entry(void *entry, unsigned long unused1, unsigned long unused2)
 		"r" (entry),
 #if CONFIG_MULTIBOOT
 		"b"(mbi), "a" (MB_MAGIC2)
-#else
-		"b"(&elf_boot_notes), "a" (0x0E1FB007)
 #endif
 		);
 }
@@ -100,25 +31,14 @@ void jmp_to_elf_entry(void *entry, unsigned long buffer, unsigned long size)
 {
 	extern unsigned char _ram_seg, _eram_seg;
 	unsigned long lb_start, lb_size;
-	unsigned long adjust, adjusted_boot_notes;
-
-	elf_boot_notes.hdr.b_checksum =
-		compute_ip_checksum(&elf_boot_notes, sizeof(elf_boot_notes));
 
 	lb_start = (unsigned long)&_ram_seg;
 	lb_size = (unsigned long)(&_eram_seg - &_ram_seg);
-	adjust = buffer +  size - lb_start;
-
-	adjusted_boot_notes = (unsigned long)&elf_boot_notes;
-	adjusted_boot_notes += adjust;
 
 	printk(BIOS_SPEW, "entry    = 0x%08lx\n", (unsigned long)entry);
 	printk(BIOS_SPEW, "lb_start = 0x%08lx\n", lb_start);
 	printk(BIOS_SPEW, "lb_size  = 0x%08lx\n", lb_size);
-	printk(BIOS_SPEW, "adjust   = 0x%08lx\n", adjust);
 	printk(BIOS_SPEW, "buffer   = 0x%08lx\n", buffer);
-	printk(BIOS_SPEW, "     elf_boot_notes = 0x%08lx\n", (unsigned long)&elf_boot_notes);
-	printk(BIOS_SPEW, "adjusted_boot_notes = 0x%08lx\n", adjusted_boot_notes);
 
 	/* Jump to kernel */
 	__asm__ __volatile__(
@@ -206,7 +126,7 @@ void jmp_to_elf_entry(void *entry, unsigned long buffer, unsigned long size)
 #if CONFIG_MULTIBOOT
 		"ri"(mbi), "ri" (MB_MAGIC2)
 #else
-		"ri"(adjusted_boot_notes), "ri" (0x0E1FB007)
+		"ri"(0), "ri" (0)
 #endif
 		);
 }
diff --git a/src/arch/x86/include/arch/stages.h b/src/arch/x86/include/arch/stages.h
index 3dea4278f3..8cbf5da34a 100644
--- a/src/arch/x86/include/arch/stages.h
+++ b/src/arch/x86/include/arch/stages.h
@@ -23,4 +23,5 @@
 #include <arch/cpu.h>
 
 void asmlinkage copy_and_run(void);
+void jmp_to_elf_entry(void *entry, unsigned long buffer, unsigned long size);
 #endif