From mboxrd@z Thu Jan 1 00:00:00 1970 From: s.trumtrar@pengutronix.de (Steffen Trumtrar) Date: Mon, 4 Mar 2013 15:05:41 +0100 Subject: [PATCH 2/9] MXS/i.MX28: add the possibility to define the external RTC crystal In-Reply-To: <1362405948-12992-1-git-send-email-s.trumtrar@pengutronix.de> References: <1362405948-12992-1-git-send-email-s.trumtrar@pengutronix.de> Message-ID: <1362405948-12992-3-git-send-email-s.trumtrar@pengutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Juergen Beisert Signed-off-by: Juergen Beisert --- arch/arm/boot/dts/imx28.dtsi | 6 ++++++ drivers/clk/mxs/clk-imx28.c | 4 +++- 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi index 958bd10..dcd0844 100644 --- a/arch/arm/boot/dts/imx28.dtsi +++ b/arch/arm/boot/dts/imx28.dtsi @@ -41,6 +41,12 @@ #address-cells = <1>; #size-cells = <0>; + osc32k: rtc_oscillator { + compatible = "fsl,mxs-rtc", "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <0>; + }; + osc24m: system_oscillator { compatible = "fsl,mxs-system", "fixed-clock"; #clock-cells = <0>; diff --git a/drivers/clk/mxs/clk-imx28.c b/drivers/clk/mxs/clk-imx28.c index 01048b5..a910d72 100644 --- a/drivers/clk/mxs/clk-imx28.c +++ b/drivers/clk/mxs/clk-imx28.c @@ -141,7 +141,7 @@ enum imx28_clk { clk32k_div, rtc, lradc, spdif_div, clk32k, pwm, uart, ssp0, ssp1, ssp2, ssp3, gpmi, spdif, emi, saif0, saif1, lcdif, etm, fec, can0, can1, usb0, usb1, usb0_phy, usb1_phy, enet_out, - clk_max + rtc_32k, clk_max }; static struct clk *clks[clk_max]; @@ -167,6 +167,8 @@ int __init mx28_clocks_init(void) if (of_device_is_compatible(np, "fsl,mxs-system")) clks[ref_xtal] = mxs_clk_fixed("ref_xtal", rate); + else if (of_device_is_compatible(np, "fsl,mxs-rtc")) + clks[rtc_32k] = mxs_clk_fixed("rtc32k", rate); } /* if not set, guess their frequency */ -- 1.7.10.4