From mboxrd@z Thu Jan 1 00:00:00 1970 From: thierry.reding@gmail.com (Thierry Reding) Date: Thu, 25 Jul 2013 10:53:29 -0700 Subject: [PATCH v5 15/16] ARM: dts: tegra: Increase prefetchable PCI memory space In-Reply-To: <1374774810-18459-1-git-send-email-thierry.reding@gmail.com> References: <1374774810-18459-1-git-send-email-thierry.reding@gmail.com> Message-ID: <1374774810-18459-16-git-send-email-thierry.reding@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Jay Agarwal Instead of evenly splitting the 512 MiB area between prefetchable and non-prefetchable memory spaces, increase the prefetchable memory space to 384 MiB while at the same time decreasing the non-prefetchable memory space to 128 MiB. This is a more useful default as most PCIe devices require more prefetchable than non-prefetchable memory. Signed-off-by: Jay Agarwal Tested-by: Stephen Warren Signed-off-by: Thierry Reding --- arch/arm/boot/dts/tegra20.dtsi | 4 ++-- arch/arm/boot/dts/tegra30.dtsi | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi index ecd016a..3add9ac2 100644 --- a/arch/arm/boot/dts/tegra20.dtsi +++ b/arch/arm/boot/dts/tegra20.dtsi @@ -473,8 +473,8 @@ ranges = <0x82000000 0 0x80000000 0x80000000 0 0x00001000 /* port 0 registers */ 0x82000000 0 0x80001000 0x80001000 0 0x00001000 /* port 1 registers */ 0x81000000 0 0 0x82000000 0 0x00010000 /* downstream I/O */ - 0x82000000 0 0xa0000000 0xa0000000 0 0x10000000 /* non-prefetchable memory */ - 0xc2000000 0 0xb0000000 0xb0000000 0 0x10000000>; /* prefetchable memory */ + 0x82000000 0 0xa0000000 0xa0000000 0 0x08000000 /* non-prefetchable memory */ + 0xc2000000 0 0xa8000000 0xa8000000 0 0x18000000>; /* prefetchable memory */ clocks = <&tegra_car TEGRA20_CLK_PEX>, <&tegra_car TEGRA20_CLK_AFI>, diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi index c8facca..d81c52e 100644 --- a/arch/arm/boot/dts/tegra30.dtsi +++ b/arch/arm/boot/dts/tegra30.dtsi @@ -35,8 +35,8 @@ 0x82000000 0 0x00001000 0x00001000 0 0x00001000 /* port 1 configuration space */ 0x82000000 0 0x00004000 0x00004000 0 0x00001000 /* port 2 configuration space */ 0x81000000 0 0 0x02000000 0 0x00010000 /* downstream I/O */ - 0x82000000 0 0x20000000 0x20000000 0 0x10000000 /* non-prefetchable memory */ - 0xc2000000 0 0x30000000 0x30000000 0 0x10000000>; /* prefetchable memory */ + 0x82000000 0 0x20000000 0x20000000 0 0x08000000 /* non-prefetchable memory */ + 0xc2000000 0 0x28000000 0x28000000 0 0x18000000>; /* prefetchable memory */ clocks = <&tegra_car TEGRA30_CLK_PCIE>, <&tegra_car TEGRA30_CLK_AFI>, -- 1.8.1.5