[U-Boot] [PATCH 1/5] arm: mx6: introduce disable_sata_clock

[Nikita Kiryanov]

Implement disable_sata_clock for mx6 SoCs.

Signed-off-by: Nikita Kiryanov <nikita at compulab.co.il>
Cc: Stefano Babic <sbabic at denx.de>
---
 arch/arm/cpu/armv7/mx6/clock.c        | 8 ++++++++
 arch/arm/include/asm/arch-mx6/clock.h | 1 +
 2 files changed, 9 insertions(+)

diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
index 6c9c78c..3274a5e 100644
--- a/arch/arm/cpu/armv7/mx6/clock.c
+++ b/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)
diff --git a/arch/arm/include/asm/arch-mx6/clock.h b/arch/arm/include/asm/arch-mx6/clock.h
index 3c58a0a..ff505ab 100644
--- a/arch/arm/include/asm/arch-mx6/clock.h
+++ b/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);
-- 
1.9.1