diff mbox

[3/4] dt-bindings: mmc: sdhci-st: Mention the discretionary "icn" clock

Message ID 20160908091136.17301-4-lee.jones@linaro.org
State Accepted
Commit 981b178964d03f6f8e6cca01568c17d1dbafdf0e
Headers show

Commit Message

Lee Jones Sept. 8, 2016, 9:11 a.m. UTC
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.jones@linaro.org>

---
 Documentation/devicetree/bindings/mmc/sdhci-st.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.9.3

Comments

Ulf Hansson Sept. 9, 2016, 11:50 a.m. UTC | #1
On 8 September 2016 at 11:11, Lee Jones <lee.jones@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.jones@linaro.org>

> ---

>  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

>


This looks good to me!

I am guessing you want this to go through my mmc tree, as I think
patch 3 and patch 4 should go together. If not, tell me.

Kind regards
Uffe
Lee Jones Sept. 10, 2016, 5:09 p.m. UTC | #2
On 9 September 2016 at 12:50, Ulf Hansson <ulf.hansson@linaro.org> wrote:
> On 8 September 2016 at 11:11, Lee Jones <lee.jones@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.jones@linaro.org>

>> ---

>>  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

>>

>

> This looks good to me!

>

> I am guessing you want this to go through my mmc tree, as I think

> patch 3 and patch 4 should go together. If not, tell me.


That's correct, thanks.

-- 
Lee Jones
Linaro ST Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
Ulf Hansson Sept. 12, 2016, 12:35 p.m. UTC | #3
On 8 September 2016 at 11:11, Lee Jones <lee.jones@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.jones@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

>
diff mbox

Patch

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