arm: mx6: introduce disable_sata_clock

Implement disable_sata_clock for mx6 SoCs.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Cc: Stefano Babic <sbabic@denx.de>

arch/arm/cpu/armv7/mx6/clock.c

@@ -596,6 +596,14 @@ int enable_sata_clock(void)
 	ungate_sata_clock();
 	return enable_enet_pll(BM_ANADIG_PLL_ENET_ENABLE_SATA);
 }
+
+void disable_sata_clock(void)
+{
+	struct mxc_ccm_reg *const imx_ccm =
+		(struct mxc_ccm_reg *)CCM_BASE_ADDR;
+
+	clrbits_le32(&imx_ccm->CCGR5, MXC_CCM_CCGR5_SATA_MASK);
+}
 #endif
 
 int enable_pcie_clock(void)

arch/arm/include/asm/arch-mx6/clock.h

@@ -60,6 +60,7 @@ void enable_uart_clk(unsigned char enable);
 int enable_cspi_clock(unsigned char enable, unsigned spi_num);
 int enable_usdhc_clk(unsigned char enable, unsigned bus_num);
 int enable_sata_clock(void);
+void disable_sata_clock(void);
 int enable_pcie_clock(void);
 int enable_i2c_clk(unsigned char enable, unsigned i2c_num);
 int enable_spi_clk(unsigned char enable, unsigned spi_num);