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| author | John Crispin <john@phrozen.org> | 2016-06-14 13:29:30 +0200 |
|---|---|---|
| committer | John Crispin <john@phrozen.org> | 2016-06-14 13:30:11 +0200 |
| commit | 7992633e63b9317ce78d8b9decddc418a55e4cbc (patch) | |
| tree | ac67c61642eb23c199b2db6fad400f2381571381 /target/linux/octeon/patches-4.4/170-cisco-hack.patch | |
| parent | 9361285a41b8b1164f523dbd493042ae0b8e63d7 (diff) | |
| download | upstream-7992633e63b9317ce78d8b9decddc418a55e4cbc.tar.gz upstream-7992633e63b9317ce78d8b9decddc418a55e4cbc.tar.bz2 upstream-7992633e63b9317ce78d8b9decddc418a55e4cbc.zip | |
octeon: Ignore MEM boot param when too small
Cisco RV0XX u-boot sets MEM=2048 as boot param. We assume that at least
4MB (mem_alloc_size) of ram is needed to run linux on cavium boards, so
if mem < 4M - ignore it and set default value
Signed-off-by: Michał Osowiecki <michal.osowiecki@gmail.com>
Diffstat (limited to 'target/linux/octeon/patches-4.4/170-cisco-hack.patch')
| -rw-r--r-- | target/linux/octeon/patches-4.4/170-cisco-hack.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/target/linux/octeon/patches-4.4/170-cisco-hack.patch b/target/linux/octeon/patches-4.4/170-cisco-hack.patch new file mode 100644 index 0000000000..6e49100e6a --- /dev/null +++ b/target/linux/octeon/patches-4.4/170-cisco-hack.patch @@ -0,0 +1,31 @@ +From patchwork Wed Jun 8 13:49:26 2016 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 8bit +Subject: [LEDE-DEV] cavium: Ignore MEM boot param when too small +From: =?utf-8?q?Micha=C5=82_Osowiecki?= <michal.osowiecki@gmail.com> +X-Patchwork-Id: 632273 +Message-Id: <57582266.8020105@gmail.com> +To: lede-dev@lists.infradead.org +Date: Wed, 8 Jun 2016 15:49:26 +0200 + +Cisco RV0XX u-boot sets MEM=2048 as boot param. We assume that at least +4MB (mem_alloc_size) of ram is needed to run linux on cavium boards, so +if mem < 4M - ignore it and set default value + + +Signed-off-by: Michał Osowiecki <michal.osowiecki@gmail.com> + +--- a/arch/mips/cavium-octeon/setup.c ++++ b/arch/mips/cavium-octeon/setup.c +@@ -944,6 +944,10 @@ + if (mem_alloc_size > MAX_MEMORY) + mem_alloc_size = MAX_MEMORY; + ++ /* Ignore bootarg MEM <= 4MB - cisco uses a b0rked uboot env on their products */ ++ if (MAX_MEMORY <= mem_alloc_size) ++ MAX_MEMORY = 512ull << 20; ++ + /* Crashkernel ignores bootmem list. It relies on mem=X@Y option */ + #ifdef CONFIG_CRASH_DUMP + add_memory_region(RESERVE_LOW_MEM, MAX_MEMORY, BOOT_MEM_RAM); |