Hi Lee
On 09/08/2016 11:11 AM, Lee Jones wrote:
> The STiH4{07,10} platform contains some interconnect clocks which are used
> by various IPs. If these clocks aren't handled correctly by ST's SDHCI
> driver MMC will break and the following output can be observed:
>
> [ 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.
>
> Cc: stable@xxxxxxxxxxxxxxx
> Tested-by: Peter Griffin <peter.griffin@xxxxxxxxxx>
> Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
> ---
> arch/arm/boot/dts/stih407-family.dtsi | 10 ++++++----
> 1 file changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm/boot/dts/stih407-family.dtsi b/arch/arm/boot/dts/stih407-family.dtsi
> index 55ecfbe..744c5bc 100644
> --- a/arch/arm/boot/dts/stih407-family.dtsi
> +++ b/arch/arm/boot/dts/stih407-family.dtsi
> @@ -550,8 +550,9 @@
> interrupt-names = "mmcirq";
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_mmc0>;
> - clock-names = "mmc";
> - clocks = <&clk_s_c0_flexgen CLK_MMC_0>;
> + clock-names = "mmc", "icn";
> + clocks = <&clk_s_c0_flexgen CLK_MMC_0>,
> + <&clk_s_c0_flexgen CLK_RX_ICN_HVA>;
> bus-width = <8>;
> };
>
> @@ -564,8 +565,9 @@
> interrupt-names = "mmcirq";
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_sd1>;
> - clock-names = "mmc";
> - clocks = <&clk_s_c0_flexgen CLK_MMC_1>;
> + clock-names = "mmc", "icn";
> + clocks = <&clk_s_c0_flexgen CLK_MMC_1>,
> + <&clk_s_c0_flexgen CLK_RX_ICN_HVA>;
> resets = <&softreset STIH407_MMC1_SOFTRESET>;
> bus-width = <4>;
> };
Acked-by: Patrice Chotard <patrice.chotard@xxxxxx>
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