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authorJonas Gorski <jogo@openwrt.org>2015-03-30 20:20:15 +0000
committerJonas Gorski <jogo@openwrt.org>2015-03-30 20:20:15 +0000
commitd8ba40cfcdd509e7e1ed68878cb93d9a81e245b6 (patch)
tree9e287d80d109a48c824498a2eb1ba576834ccd6f /target/linux/brcm63xx/patches-3.18
parent8353a3bd455f1ee5e0250d0a97b5d058f21316c7 (diff)
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brcm63xx: use relocate to move the kernel back to start of ram
Appearently the kernel only uses kernel above it, so moving it to an higher address causes a lot of unavailable memory (#19327). Also move the on-flash kernel to 0x80a0000, as newer CFEs don't like uncompressing there (net-booting an ELF kernel is fine, though). Signed-off-by: Jonas Gorski <jogo@openwrt.org> SVN-Revision: 45164
Diffstat (limited to 'target/linux/brcm63xx/patches-3.18')
-rw-r--r--target/linux/brcm63xx/patches-3.18/810-BCM63XX-move-kernel-behind-CFE.patch29
1 files changed, 0 insertions, 29 deletions
diff --git a/target/linux/brcm63xx/patches-3.18/810-BCM63XX-move-kernel-behind-CFE.patch b/target/linux/brcm63xx/patches-3.18/810-BCM63XX-move-kernel-behind-CFE.patch
deleted file mode 100644
index b161edbd72..0000000000
--- a/target/linux/brcm63xx/patches-3.18/810-BCM63XX-move-kernel-behind-CFE.patch
+++ /dev/null
@@ -1,29 +0,0 @@
-From b99815f47828214b298178b0d0e2a9f3aae9f24a Mon Sep 17 00:00:00 2001
-From: Jonas Gorski <jogo@openwrt.org>
-Date: Sun, 22 Mar 2015 11:49:16 +0100
-Subject: [PATCH] MIPS: BCM63XX: move kernel behind CFE
-
-CFE will load itself to offset 4 MiB (or 6 MiB) in memory occupying a
-bit over one MiB. Traditionally the kernel will get linked to and loaded
-at offset 64k.
-This will pose a problem if the kernel size reaches 4 MiB - 64 kB, as
-CFE will start overwriting itself. This can easily happen by including a
-ramdisk image in the kernel.
-While for net-booted elf kernels this can be worked around by wrapping
-them in a lzma boot loader, on-flash images require the kernel to be
-lzma compressed. This would cause inefficient double compression.
-
-Luckily we have full control over where the kernel will be extracted to
-and the entry point to be called, so move the kernel to behind CFE.
----
- arch/mips/bcm63xx/Platform | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- a/arch/mips/bcm63xx/Platform
-+++ b/arch/mips/bcm63xx/Platform
-@@ -4,4 +4,4 @@
- platform-$(CONFIG_BCM63XX) += bcm63xx/
- cflags-$(CONFIG_BCM63XX) += \
- -I$(srctree)/arch/mips/include/asm/mach-bcm63xx/
--load-$(CONFIG_BCM63XX) := 0xffffffff80010000
-+load-$(CONFIG_BCM63XX) := 0xffffffff80800000