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authorDinh Nguyen <dinguyen@altera.com>2014-01-06 12:17:24 -0600
committerMike Turquette <mturquette@linaro.org>2014-02-18 14:08:14 -0800
commit044abbde7bef2726489b5e11ec3fcdc012a4de4a (patch)
treec4d78dceb33f2b1450f37a778f1af8946f82c9ae /arch/arm/boot/dts/socfpga.dtsi
parent97259e99bdc9144d071815536f1dbc2e41c6b5a8 (diff)
downloadblackbird-op-linux-044abbde7bef2726489b5e11ec3fcdc012a4de4a.tar.gz
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clk: socfpga: Add a clk-phase property to the "altr,socfpga-gate-clk"
The clk-phase property is used to represent the 2 clock phase values that is needed for the SD/MMC driver. Add a prepare function to the clk_ops, that will use the syscon driver to set sdmmc_clk's phase shift that is located in the system manager. Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> --- v9: none v8: Use degrees in the clk-phase binding property v7: Add dts property to represent the clk phase of the sdmmc_clk. Add a prepare function to the gate clk that will toggle clock phase setting. Remove the "altr,socfpga-sdmmc-sdr-clk" clock type. v6: Add a new clock type "altr,socfpga-sdmmc-sdr-clk" that will be used to set the phase shift settings. v5: Use the "snps,dw-mshc" binding v4: Use the sdmmc_clk prepare function to set the phase shift settings v3: Not use the syscon driver because as of 3.13-rc1, the syscon driver is loaded after the clock driver. v2: Use the syscon driver
Diffstat (limited to 'arch/arm/boot/dts/socfpga.dtsi')
-rw-r--r--arch/arm/boot/dts/socfpga.dtsi1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index 537f1a5c07f5..3d62f47bead2 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -415,6 +415,7 @@
compatible = "altr,socfpga-gate-clk";
clocks = <&f2s_periph_ref_clk>, <&main_nand_sdmmc_clk>, <&per_nand_mmc_clk>;
clk-gate = <0xa0 8>;
+ clk-phase = <0 135>;
};
nand_x_clk: nand_x_clk {
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