On 8 September 2016 at 11:11, Lee Jones <lee.jo...@linaro.org> wrote: > The interconnect (ICN) clock is required for functional working of > MMC on some ST platforms. When not supplied it can result in > broken MMC and the following output: > > [ 13.916949] mmc0: Timeout waiting for hardware interrupt. > [ 13.922349] sdhci: =========== REGISTER DUMP (mmc0)=========== > [ 13.928175] sdhci: Sys addr: 0x00000000 | Version: 0x00001002 > [ 13.933999] sdhci: Blk size: 0x00007040 | Blk cnt: 0x00000001 > [ 13.939825] sdhci: Argument: 0x00fffff0 | Trn mode: 0x00000013 > [ 13.945650] sdhci: Present: 0x1fff0206 | Host ctl: 0x00000011 > [ 13.951475] sdhci: Power: 0x0000000f | Blk gap: 0x00000080 > [ 13.957300] sdhci: Wake-up: 0x00000000 | Clock: 0x00003f07 > [ 13.963126] sdhci: Timeout: 0x00000004 | Int stat: 0x00000000 > [ 13.968952] sdhci: Int enab: 0x02ff008b | Sig enab: 0x02ff008b > [ 13.974777] sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000 > [ 13.980602] sdhci: Caps: 0x21ed3281 | Caps_1: 0x00000000 > [ 13.986428] sdhci: Cmd: 0x0000063a | Max curr: 0x00000000 > [ 13.992252] sdhci: Host ctl2: 0x00000000 > [ 13.996166] sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x7c048200 > [ 14.001990] sdhci: =========================================== > [ 14.009802] mmc0: Got data interrupt 0x02000000 even though no > data operation was in progress. > > Signed-off-by: Lee Jones <lee.jo...@linaro.org>
Thanks, applied for fixes! Kind regards Uffe > --- > Documentation/devicetree/bindings/mmc/sdhci-st.txt | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/mmc/sdhci-st.txt > b/Documentation/devicetree/bindings/mmc/sdhci-st.txt > index 88faa91..3cd4c43 100644 > --- a/Documentation/devicetree/bindings/mmc/sdhci-st.txt > +++ b/Documentation/devicetree/bindings/mmc/sdhci-st.txt > @@ -10,7 +10,7 @@ Required properties: > subsystem (mmcss) inside the FlashSS (available in > STiH407 SoC > family). > > -- clock-names: Should be "mmc". > +- clock-names: Should be "mmc" and "icn". (NB: The latter is not > compulsory) > See: > Documentation/devicetree/bindings/resource-names.txt > - clocks: Phandle to the clock. > See: > Documentation/devicetree/bindings/clock/clock-bindings.txt > -- > 2.9.3 >
