diff options
| author | Marcus Folkesson <marcus.folkesson@gmail.com> | 2016-10-17 13:28:00 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-10-25 11:08:15 +0800 |
| commit | 4e518816a938187b3bfe1b62fa291d4e38dca06e (patch) | |
| tree | 6ba07039848d4948846ba7a84e45e6115e55656f | |
| parent | 119a0798dc42ed4c4f96d39b8b676efcea73aec6 (diff) | |
crypto: caam - add support for iMX6UL
i.MX6UL does only require three clocks to enable CAAM module.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | Documentation/devicetree/bindings/crypto/fsl-sec4.txt | 20 | ||||
| -rw-r--r-- | drivers/crypto/caam/ctrl.c | 35 |
2 files changed, 40 insertions, 15 deletions
diff --git a/Documentation/devicetree/bindings/crypto/fsl-sec4.txt b/Documentation/devicetree/bindings/crypto/fsl-sec4.txt index adeca34c5a33..10a425f451fc 100644 --- a/Documentation/devicetree/bindings/crypto/fsl-sec4.txt +++ b/Documentation/devicetree/bindings/crypto/fsl-sec4.txt @@ -123,6 +123,9 @@ PROPERTIES EXAMPLE + +iMX6QDL/SX requires four clocks + crypto@300000 { compatible = "fsl,sec-v4.0"; fsl,sec-era = <2>; @@ -139,6 +142,23 @@ EXAMPLE clock-names = "mem", "aclk", "ipg", "emi_slow"; }; + +iMX6UL does only require three clocks + + crypto: caam@2140000 { + compatible = "fsl,sec-v4.0"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0x2140000 0x3c000>; + ranges = <0 0x2140000 0x3c000>; + interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>; + + clocks = <&clks IMX6UL_CLK_CAAM_MEM>, + <&clks IMX6UL_CLK_CAAM_ACLK>, + <&clks IMX6UL_CLK_CAAM_IPG>; + clock-names = "mem", "aclk", "ipg"; + }; + ===================================================================== Job Ring (JR) Node diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c index 72ff19658985..a79937d68c26 100644 --- a/drivers/crypto/caam/ctrl.c +++ b/drivers/crypto/caam/ctrl.c @@ -330,8 +330,8 @@ static int caam_remove(struct platform_device *pdev) clk_disable_unprepare(ctrlpriv->caam_ipg); clk_disable_unprepare(ctrlpriv->caam_mem); clk_disable_unprepare(ctrlpriv->caam_aclk); - clk_disable_unprepare(ctrlpriv->caam_emi_slow); - + if (!of_machine_is_compatible("fsl,imx6ul")) + clk_disable_unprepare(ctrlpriv->caam_emi_slow); return 0; } @@ -482,14 +482,16 @@ static int caam_probe(struct platform_device *pdev) } ctrlpriv->caam_aclk = clk; - clk = caam_drv_identify_clk(&pdev->dev, "emi_slow"); - if (IS_ERR(clk)) { - ret = PTR_ERR(clk); - dev_err(&pdev->dev, - "can't identify CAAM emi_slow clk: %d\n", ret); - return ret; + if (!of_machine_is_compatible("fsl,imx6ul")) { + clk = caam_drv_identify_clk(&pdev->dev, "emi_slow"); + if (IS_ERR(clk)) { + ret = PTR_ERR(clk); + dev_err(&pdev->dev, + "can't identify CAAM emi_slow clk: %d\n", ret); + return ret; + } + ctrlpriv->caam_emi_slow = clk; } - ctrlpriv->caam_emi_slow = clk; ret = clk_prepare_enable(ctrlpriv->caam_ipg); if (ret < 0) { @@ -510,11 +512,13 @@ static int caam_probe(struct platform_device *pdev) goto disable_caam_mem; } - ret = clk_prepare_enable(ctrlpriv->caam_emi_slow); - if (ret < 0) { - dev_err(&pdev->dev, "can't enable CAAM emi slow clock: %d\n", - ret); - goto disable_caam_aclk; + if (!of_machine_is_compatible("fsl,imx6ul")) { + ret = clk_prepare_enable(ctrlpriv->caam_emi_slow); + if (ret < 0) { + dev_err(&pdev->dev, "can't enable CAAM emi slow clock: %d\n", + ret); + goto disable_caam_aclk; + } } /* Get configuration properties from device tree */ @@ -832,7 +836,8 @@ caam_remove: iounmap_ctrl: iounmap(ctrl); disable_caam_emi_slow: - clk_disable_unprepare(ctrlpriv->caam_emi_slow); + if (!of_machine_is_compatible("fsl,imx6ul")) + clk_disable_unprepare(ctrlpriv->caam_emi_slow); disable_caam_aclk: clk_disable_unprepare(ctrlpriv->caam_aclk); disable_caam_mem: |