Commit 78567f13 authored Sep 08, 2016 by Lee Jones Committed by Patrice Chotard Sep 08, 2016

ARM: dts: STiH407-family: Provide interconnect clock for consumption in ST SDHCI



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@vger.kernel.org
Tested-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Patrice Chotard <patrice.chotard@st.com>

parent 7e9d2850

arch/arm/boot/dts/stih407-family.dtsi

+6 −4

Original line number	Original line	Diff line number	Diff line
	@@ -550,8 +550,9 @@
	interrupt-names = "mmcirq";		interrupt-names = "mmcirq";
	pinctrl-names = "default";		pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_mmc0>;		pinctrl-0 = <&pinctrl_mmc0>;
	clock-names = "mmc";		clock-names = "mmc", "icn";
	clocks = <&clk_s_c0_flexgen CLK_MMC_0>;		clocks = <&clk_s_c0_flexgen CLK_MMC_0>,
			<&clk_s_c0_flexgen CLK_RX_ICN_HVA>;
	bus-width = <8>;		bus-width = <8>;
	non-removable;		non-removable;
	};		};
	@@ -565,8 +566,9 @@
	interrupt-names = "mmcirq";		interrupt-names = "mmcirq";
	pinctrl-names = "default";		pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_sd1>;		pinctrl-0 = <&pinctrl_sd1>;
	clock-names = "mmc";		clock-names = "mmc", "icn";
	clocks = <&clk_s_c0_flexgen CLK_MMC_1>;		clocks = <&clk_s_c0_flexgen CLK_MMC_1>,
			<&clk_s_c0_flexgen CLK_RX_ICN_HVA>;
	resets = <&softreset STIH407_MMC1_SOFTRESET>;		resets = <&softreset STIH407_MMC1_SOFTRESET>;
	bus-width = <4>;		bus-width = <4>;
	};		};