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ARM: dts: dra7: Add "max-frequency" property to MMC dt nodes

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Add "max-frequency" property to MMC dt nodes and set the
maximum frequency to 192MHz for MMC1/MMC2, 64MHz for MMC3
and 192MHz for MMC4. pdata quirks must be utilized to
detect presence of rev 1.1/1.0 of silicon and adjust
maximum frequencies as per restrictions documented in i843.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Kishon Vijay Abraham I 2017-06-07 15:07:47 +05:30 committed by Tony Lindgren
parent b5ca62a53d
commit 866b5e447f
1 changed files with 5 additions and 0 deletions
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5
arch/arm/boot/dts/dra7.dtsi
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@ -1037,6 +1037,7 @@ mmc1: mmc@4809c000 {
dma-names = "tx", "rx";
status = "disabled";
pbias-supply = <&pbias_mmc_reg>;
max-frequency = <192000000>;
};
mmc2: mmc@480b4000 {
@ -1048,6 +1049,7 @@ mmc2: mmc@480b4000 {
dmas = <&sdma_xbar 47>, <&sdma_xbar 48>;
dma-names = "tx", "rx";
status = "disabled";
max-frequency = <192000000>;
};
mmc3: mmc@480ad000 {
@ -1059,6 +1061,8 @@ mmc3: mmc@480ad000 {
dmas = <&sdma_xbar 77>, <&sdma_xbar 78>;
dma-names = "tx", "rx";
status = "disabled";
/* Errata i887 limits max-frequency of MMC3 to 64 MHz */
max-frequency = <64000000>;
};
mmc4: mmc@480d1000 {
@ -1070,6 +1074,7 @@ mmc4: mmc@480d1000 {
dmas = <&sdma_xbar 57>, <&sdma_xbar 58>;
dma-names = "tx", "rx";
status = "disabled";
max-frequency = <192000000>;
};
mmu0_dsp1: mmu@40d01000 {