[PATCH v7] ARM: dts: Add HS400 support for exynos5420 and exynos5800
From: Alim Akhtar <alim.akhtar@samsung.com>
Date: 2015-03-18 11:20:23
Also in:
linux-arm-kernel, linux-mmc, linux-samsung-soc
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Seungwon Jeon <redacted>
HS400 timing values are added for SMDK5420, exynos5420-peach-pit
and exynos5800-peach-pi boards.
This also adds RCLK GPIO line, this gpio should be in pull-down
state.
This also enables HS400 on peach-pi and this updates the clock frequency
to 800MHz to be set as input clock to controller.
Signed-off-by: Seungwon Jeon <redacted>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
[Alim: addressed review comments]
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
---
Changes in V7:
Add back bus1 pin, which was removed during rebase in v6
as rightly pointed out by Javier[1].
Changes in V6:
Rebased on kukjin's for-next branch[0]
(commit: 77105c8 Merge branch 'v4.0-samsung-fixes-2' into for-next)
[0]: git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung.git
[1]: http://www.spinics.net/lists/arm-kernel/msg406618.html
arch/arm/boot/dts/exynos5420-peach-pit.dts | 4 +++-
arch/arm/boot/dts/exynos5420-pinctrl.dtsi | 7 +++++++
arch/arm/boot/dts/exynos5420-smdk5420.dts | 5 ++++-
arch/arm/boot/dts/exynos5800-peach-pi.dts | 7 +++++--
4 files changed, 19 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
index 3f4e2fe..0788d08 100644
--- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts@@ -699,8 +699,10 @@ samsung,dw-mshc-ciu-div = <3>; samsung,dw-mshc-sdr-timing = <0 4>; samsung,dw-mshc-ddr-timing = <0 2>; + samsung,dw-mshc-hs400-timing = <0 2>; + samsung,read-strobe-delay = <90>; pinctrl-names = "default"; - pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8>; + pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8 &sd0_rclk>; bus-width = <8>; };
diff --git a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
index ba686e4..8b15316 100644
--- a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
+++ b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi@@ -201,6 +201,13 @@ samsung,pin-drv = <3>; }; + sd0_rclk: sd0-rclk { + samsung,pins = "gpc0-7"; + samsung,pin-function = <2>; + samsung,pin-pud = <1>; + samsung,pin-drv = <3>; + }; + sd1_cmd: sd1-cmd { samsung,pins = "gpc1-1"; samsung,pin-function = <2>;
diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts b/arch/arm/boot/dts/exynos5420-smdk5420.dts
index 7a56852..9103f23 100644
--- a/arch/arm/boot/dts/exynos5420-smdk5420.dts
+++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts@@ -80,8 +80,11 @@ samsung,dw-mshc-ciu-div = <3>; samsung,dw-mshc-sdr-timing = <0 4>; samsung,dw-mshc-ddr-timing = <0 2>; + samsung,dw-mshc-hs400-timing = <0 2>; + samsung,read-strobe-delay = <90>; pinctrl-names = "default"; - pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8>; + pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8 + &sd0_rclk>; bus-width = <8>; cap-mmc-highspeed; };
diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index c833bac..412f41d 100644
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts@@ -654,15 +654,18 @@ num-slots = <1>; broken-cd; mmc-hs200-1_8v; + mmc-hs400-1_8v; cap-mmc-highspeed; non-removable; card-detect-delay = <200>; - clock-frequency = <400000000>; + clock-frequency = <800000000>; samsung,dw-mshc-ciu-div = <3>; samsung,dw-mshc-sdr-timing = <0 4>; samsung,dw-mshc-ddr-timing = <0 2>; + samsung,dw-mshc-hs400-timing = <0 2>; + samsung,read-strobe-delay = <90>; pinctrl-names = "default"; - pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8>; + pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8 &sd0_rclk>; bus-width = <8>; };
--
1.9.1