diff options
Diffstat (limited to 'target/linux/octeon/patches-4.9/170-cisco-hack.patch')
| -rw-r--r-- | target/linux/octeon/patches-4.9/170-cisco-hack.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/target/linux/octeon/patches-4.9/170-cisco-hack.patch b/target/linux/octeon/patches-4.9/170-cisco-hack.patch new file mode 100644 index 0000000000..124bcfd7a7 --- /dev/null +++ b/target/linux/octeon/patches-4.9/170-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 +@@ -1005,6 +1005,10 @@ void __init plat_mem_setup(void) + 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); |