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mmc: sdhci-pxav3: Extend binding with SDIO3 conf reg for the Armada 38x

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The SDHCI unit used on the Armada 38x needs using an extra register to
do specific clock adjustments in order to support the SDR50 and DDR50
modes. This patch extends the binding to allow using this register.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Gregory CLEMENT 2015-01-29 12:36:26 +01:00 committed by Ulf Hansson
parent a39128bcd6
commit d58a2ea5cb
1 changed files with 11 additions and 4 deletions
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15
Documentation/devicetree/bindings/mmc/sdhci-pxa.txt
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@ -9,9 +9,13 @@ Required properties:
- reg:
* for "mrvl,pxav2-mmc" and "mrvl,pxav3-mmc", one register area for
the SDHCI registers.
* for "marvell,armada-380-sdhci", two register areas. The first one
for the SDHCI registers themselves, and the second one for the
AXI/Mbus bridge registers of the SDHCI unit.
* for "marvell,armada-380-sdhci", three register areas. The first
one for the SDHCI registers themselves, the second one for the
AXI/Mbus bridge registers of the SDHCI unit, the third one for the
SDIO3 Configuration register
- reg names: should be "sdhci", "mbus", "conf-sdio3". only mandatory
for "marvell,armada-380-sdhci"
- clocks: Array of clocks required for SDHCI; requires at least one for
I/O clock.
- clock-names: Array of names corresponding to clocks property; shall be
@ -35,7 +39,10 @@ sdhci@d4280800 {
sdhci@d8000 {
compatible = "marvell,armada-380-sdhci";
reg = <0xd8000 0x1000>, <0xdc000 0x100>;
reg-names = "sdhci", "mbus", "conf-sdio3";
reg = <0xd8000 0x1000>,
<0xdc000 0x100>;
<0x18454 0x4>;
interrupts = <0 25 0x4>;
clocks = <&gateclk 17>;
clock-names = "io";