29 lines
1.2 KiB
Diff
29 lines
1.2 KiB
Diff
From b99815f47828214b298178b0d0e2a9f3aae9f24a Mon Sep 17 00:00:00 2001
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From: Jonas Gorski <jogo@openwrt.org>
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Date: Sun, 22 Mar 2015 11:49:16 +0100
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Subject: [PATCH] MIPS: BCM63XX: move kernel behind CFE
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CFE will load itself to offset 4 MiB (or 6 MiB) in memory occupying a
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bit over one MiB. Traditionally the kernel will get linked to and loaded
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at offset 64k.
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This will pose a problem if the kernel size reaches 4 MiB - 64 kB, as
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CFE will start overwriting itself. This can easily happen by including a
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ramdisk image in the kernel.
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While for net-booted elf kernels this can be worked around by wrapping
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them in a lzma boot loader, on-flash images require the kernel to be
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lzma compressed. This would cause inefficient double compression.
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Luckily we have full control over where the kernel will be extracted to
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and the entry point to be called, so move the kernel to behind CFE.
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---
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arch/mips/bcm63xx/Platform | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/arch/mips/bcm63xx/Platform
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+++ b/arch/mips/bcm63xx/Platform
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@@ -4,4 +4,4 @@
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platform-$(CONFIG_BCM63XX) += bcm63xx/
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cflags-$(CONFIG_BCM63XX) += \
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-I$(srctree)/arch/mips/include/asm/mach-bcm63xx/
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-load-$(CONFIG_BCM63XX) := 0xffffffff80010000
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+load-$(CONFIG_BCM63XX) := 0xffffffff80800000
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