From d1e5b4065ee14a6dbabd9318a8f73194c6536d6e Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 9 Dec 2014 22:25:23 -0700 Subject: [PATCH] ARM: tegra: Enable non-cached memory Some boards, most notably those with a PCIe ethernet NIC, require this to avoid cache coherency problems. Since the option adds very little code and overhead enable it across all Tegra generations. Other drivers may also start supporting this functionality at some point, so enabling it now will automatically reap the benefits later on. Acked-by: Stephen Warren Signed-off-by: Thierry Reding Signed-off-by: Simon Glass Signed-off-by: Tom Warren --- include/configs/tegra-common.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/include/configs/tegra-common.h b/include/configs/tegra-common.h index 06853285a2..8f1e370915 100644 --- a/include/configs/tegra-common.h +++ b/include/configs/tegra-common.h @@ -47,7 +47,9 @@ * Size of malloc() pool */ #define CONFIG_SYS_MALLOC_LEN (4 << 20) /* 4MB */ -#define CONFIG_SYS_MALLOC_F_LEN (1 << 10) +#define CONFIG_SYS_MALLOC_F_LEN (1 << 10) + +#define CONFIG_SYS_NONCACHED_MEMORY (1 << 20) /* 1 MiB */ /* * NS16550 Configuration -- 2.30.2