Changes need for host controller to detect UHS-I highspeed cards.
Changes in VDDQ_MMC2 voltage range help scale
the required voltage to detect and load the microSD cards.
Signed-off-by: Anand Moon <linux.amoon@xxxxxxxxx>
---
Changes based on git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung.git v4.4-next/dt-samsung branch
Changes:
Drop the ranp_delay for LDO9.
Thanks to : Krzysztof, Doug Anderson, Jaehoon Chung for helping
me out figure out the mmc core requirement.
Also drop the previous changes:
use cd-gpio method to detect sd-card.
Added UHS-I bus speed support.
[ 4.713553] random: nonblocking pool is initialized
[ 4.718423] 14530000.hdmi supply hdmi-en not found, using dummy regulator
[ 4.726206] exynos-drm exynos-drm: bound 14400000.fimd (ops fimd_component_ops)
[ 4.732555] exynos-drm exynos-drm: bound 14450000.mixer (ops mixer_component_ops)
[ 4.740180] exynos-drm exynos-drm: bound 14530000.hdmi (ops hdmi_component_ops)
[ 4.746936] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 4.753428] [drm] No driver support for vblank timestamp query.
[ 4.940794] Console: switching to colour frame buffer device 274x77
[ 4.995344] exynos-drm exynos-drm: fb0: frame buffer device
[ 5.024573] [drm] Initialized exynos 1.0.0 20110530 on minor 0
[ 5.031164] exynos-dwc3 usb@12000000: no suspend clk specified
[ 5.054571] usb 2-1: new full-speed USB device number 2 using exynos-ohci
[ 5.159527] dwmmc_exynos 12220000.mmc: Busy; trying anyway
[ 5.163705] mmc_host mmc1: Timeout sending command (cmd 0x202000 arg 0x0 status 0x0)
---
arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
index 1af5bdc..a4be3e0 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
@@ -182,9 +182,10 @@
ldo13_reg: LDO13 {
regulator-name = "vdd_ldo13";
- regulator-min-microvolt = <2800000>;
+ regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <2800000>;
regulator-always-on;
+ regulator-ramp-delay = <12000>;
};
ldo15_reg: LDO15 {
@@ -213,6 +214,7 @@
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-always-on;
+ regulator-ramp-delay = <12000>;
};
ldo24_reg: LDO24 {
@@ -338,6 +340,7 @@
samsung,dw-mshc-ddr-timing = <0 2>;
samsung,dw-mshc-hs400-timing = <0 2>;
samsung,read-strobe-delay = <90>;
+ vmmc-supply = <&ldo3_reg>;
pinctrl-names = "default";
pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8 &sd0_cd &sd0_rclk>;
bus-width = <8>;
@@ -355,6 +358,8 @@
pinctrl-names = "default";
pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus1 &sd2_bus4>;
bus-width = <4>;
+ vmmc-supply = <&ldo19_reg>;
+ vqmmc-supply = <&ldo13_reg>;
cap-sd-highspeed;
};
--
2.1.4
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