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authorNicolas Dechesne <nicolas.dechesne@linaro.org>2015-03-19 09:36:21 +0100
committerNicolas Dechesne <nicolas.dechesne@linaro.org>2015-03-19 09:38:08 +0100
commitdf45bb423207aa10a1baa97d653eb04de9da3ac5 (patch)
treec9e630e106b1b92d38a66934035686cf519a2d40
parent25f0ab71646e08258e5da85aa706c3975d143271 (diff)
Revert "fixup: ATAG MEM fixup loader for Qualcomm devices"ubuntu-qcom-snapdragon-15.03
This reverts commit 2aa026258e78e8225a29822137f048d65b048626. This hack is no longer needed since commit: mm: Don't offset memmap for flatmem Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>
-rw-r--r--fixup.S84
-rw-r--r--fixup.binbin84 -> 0 bytes
-rw-r--r--fixup.txt17
3 files changed, 0 insertions, 101 deletions
diff --git a/fixup.S b/fixup.S
deleted file mode 100644
index 42d27fc0c949..000000000000
--- a/fixup.S
+++ /dev/null
@@ -1,84 +0,0 @@
-/* Copyright (c) 2013, The Linux Foundation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- * * Neither the name of The Linux Foundation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
- * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
- * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-/* Fixup the atags for dragonboard (and possibly other targets). */
-/*
- * The bootloader on some targets passes an ATAG in that sets the
- * first memory region to be 2MB after the actual start of memory.
- * With newer upstream kernels, the PHYS_OFFSET must be a multiple of
- * a large boundary (currently 128MB). Without devicetree, we work
- * around this with an early init hook, and a fixup that adds a
- * reservation. These hooks don't run in time to fix it in Device
- * tree.
- *
- * The following code can be prepended to the zImage. It adjusts the
- * memory atag back down to the actual start of memory. The
- * assumption is that the device tree will describe the necessary
- * memory reservation. The zImage is relocatable, so it is easy to
- * prepend this code.
- */
-
- /* Figure out what the broken mem tag would be */
- mov r8, pc
- and r8, r8, #0xf8000000
- add r8, r8, #0x00200000
-
- /* R2 is where the atags are passed. r5 on are scratch. */
- mov r5, r2
- ldr r7, .tag_mem
-
-.next:
- /* Load the tag, and check. */
- ldr r6, [r5, #4]
- cmp r6, #0
- beq .done
-
- /* Is the a 'mem' tag. */
- cmp r6, r7
- bne .not_mem
-
- /* Is this memory base what we want? */
- ldr r6, [r5, #12]
- cmp r6, r8
-
- subeq r6, r6, #0x200000
- streq r6, [r5, #12]
- ldreq r6, [r5, #8]
- addeq r6, r6, #0x200000
- streq r6, [r5, #8]
-
-.not_mem:
- /* Move r5 to the next tag. */
- ldr r6, [r5, #0]
- add r5, r5, r6, asl #2
- b .next
-
-.tag_mem:
- .word 0x54410002
-
-.done:
diff --git a/fixup.bin b/fixup.bin
deleted file mode 100644
index 67f2a17eaaa8..000000000000
--- a/fixup.bin
+++ /dev/null
Binary files differ
diff --git a/fixup.txt b/fixup.txt
deleted file mode 100644
index 07bcb3c52a0d..000000000000
--- a/fixup.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-
-Fixup loader to boot mainline on Qualcomm platforms that needs adjustment of
-ATAG MEM.
-
-Found at [1], built by issuing:
-
- arm-eabi-as -o fixup.o fixup.S
- arm-eabi-objcopy -O binary fixup.o fixup.bin
-
-
-Use by concatenating together with zImage:
-
- cat fixup.bin arch/arm/boot/zImage > zImage
-
-
-[1] https://www.codeaurora.org/cgit/quic/kernel/skales/tree/atag-fix/fixup.S
-