ARM: imx: imx53: Add SATA PHY clock

Add SATA PHY clock which are derived from the USB PHY1 clock. Note that this
patch derives the SATA PHY clock from USB PHY1 clock gate so that the SATA
driver can ungate both the SATA PHY clock and USB PHY1 clock for the SATA to
work correctly.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Richard Zhu <r65037@freescale.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Linux-IDE <linux-ide@vger.kernel.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/mach-imx/clk-imx51-imx53.c

@@ -244,6 +244,7 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil,
 	clk[IMX5_CLK_SPDIF0_GATE]	= imx_clk_gate2("spdif0_gate", "spdif0_com_sel", MXC_CCM_CCGR5, 26);
 	clk[IMX5_CLK_SPDIF_IPG_GATE]	= imx_clk_gate2("spdif_ipg_gate", "ipg", MXC_CCM_CCGR5, 30);
 	clk[IMX5_CLK_SAHARA_IPG_GATE]	= imx_clk_gate2("sahara_ipg_gate", "ipg", MXC_CCM_CCGR4, 14);
+	clk[IMX5_CLK_SATA_REF]		= imx_clk_fixed_factor("sata_ref", "usb_phy1_gate", 1, 1);
 
 	for (i = 0; i < ARRAY_SIZE(clk); i++)
 		if (IS_ERR(clk[i]))

include/dt-bindings/clock/imx5-clock.h

@@ -197,6 +197,7 @@
 #define IMX5_CLK_SPDIF_IPG_GATE		185
 #define IMX5_CLK_OCRAM			186
 #define IMX5_CLK_SAHARA_IPG_GATE	187
-#define IMX5_CLK_END			188
+#define IMX5_CLK_SATA_REF		188
+#define IMX5_CLK_END			189
 
 #endif /* __DT_BINDINGS_CLOCK_IMX5_H */