i.MX6: add enable_sata_clock()

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Signed-off-by: Stefano Babic <sbabic@denx.de>

4 files changed, 152 insertions, 0 deletions

diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
index 0f0543294..52d5dc4d9 100644
--- a/arch/arm/cpu/armv7/mx6/clock.c
+++ b/arch/arm/cpu/armv7/mx6/clock.c
@@ -292,6 +292,37 @@ u32 imx_get_fecclk(void)
 	return decode_pll(PLL_ENET, CONFIG_SYS_MX6_HCLK);
 }
 
+int enable_sata_clock(void)
+{
+	u32 reg = 0;
+	s32 timeout = 100000;
+	struct mxc_ccm_reg *const imx_ccm
+		= (struct mxc_ccm_reg *) CCM_BASE_ADDR;
+
+	/* Enable sata clock */
+	reg = readl(&imx_ccm->CCGR5); /* CCGR5 */
+	reg |= MXC_CCM_CCGR5_CG2_MASK;
+	writel(reg, &imx_ccm->CCGR5);
+
+	/* Enable PLLs */
+	reg = readl(&imx_ccm->analog_pll_enet);
+	reg &= ~BM_ANADIG_PLL_SYS_POWERDOWN;
+	writel(reg, &imx_ccm->analog_pll_enet);
+	reg |= BM_ANADIG_PLL_SYS_ENABLE;
+	while (timeout--) {
+		if (readl(&imx_ccm->analog_pll_enet) & BM_ANADIG_PLL_SYS_LOCK)
+			break;
+	}
+	if (timeout <= 0)
+		return -EIO;
+	reg &= ~BM_ANADIG_PLL_SYS_BYPASS;
+	writel(reg, &imx_ccm->analog_pll_enet);
+	reg |= BM_ANADIG_PLL_ENET_ENABLE_SATA;
+	writel(reg, &imx_ccm->analog_pll_enet);
+
+	return 0 ;
+}
+
 unsigned int mxc_get_clock(enum mxc_clock clk)
 {
 	switch (clk) {
diff --git a/arch/arm/include/asm/arch-mx6/clock.h b/arch/arm/include/asm/arch-mx6/clock.h
index 613809bdd..b91d8bf45 100644
--- a/arch/arm/include/asm/arch-mx6/clock.h
+++ b/arch/arm/include/asm/arch-mx6/clock.h
@@ -47,5 +47,6 @@ u32 imx_get_uartclk(void);
 u32 imx_get_fecclk(void);
 unsigned int mxc_get_clock(enum mxc_clock clk);
 void enable_usboh3_clk(unsigned char enable);
+int enable_sata_clock(void);
 
 #endif /* __ASM_ARCH_CLOCK_H */
diff --git a/arch/arm/include/asm/arch-mx6/imx-regs.h b/arch/arm/include/asm/arch-mx6/imx-regs.h
index 6d25c8d98..e165810dd 100644
--- a/arch/arm/include/asm/arch-mx6/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx6/imx-regs.h
@@ -436,5 +436,14 @@ struct anatop_regs {
 	u32	digprog;		/* 0x260 */
 };
 
+struct iomuxc_base_regs {
+	u32     gpr[14];        /* 0x000 */
+	u32     obsrv[5];       /* 0x038 */
+	u32     swmux_ctl[197]; /* 0x04c */
+	u32     swpad_ctl[250]; /* 0x360 */
+	u32     swgrp[26];      /* 0x748 */
+	u32     daisy[104];     /* 0x7b0..94c */
+};
+
 #endif /* __ASSEMBLER__*/
 #endif /* __ASM_ARCH_MX6_IMX_REGS_H__ */
diff --git a/arch/arm/include/asm/arch-mx6/iomux-v3.h b/arch/arm/include/asm/arch-mx6/iomux-v3.h
index 4558f4fba..788b41321 100644
--- a/arch/arm/include/asm/arch-mx6/iomux-v3.h
+++ b/arch/arm/include/asm/arch-mx6/iomux-v3.h
@@ -100,4 +100,115 @@ typedef u64 iomux_v3_cfg_t;
 int imx_iomux_v3_setup_pad(iomux_v3_cfg_t pad);
 int imx_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t *pad_list, unsigned count);
 
+/*
+ * IOMUXC_GPR13 bit fields
+ */
+#define IOMUXC_GPR13_SDMA_STOP_REQ	(1<<30)
+#define IOMUXC_GPR13_CAN2_STOP_REQ	(1<<29)
+#define IOMUXC_GPR13_CAN1_STOP_REQ	(1<<28)
+#define IOMUXC_GPR13_ENET_STOP_REQ	(1<<27)
+#define IOMUXC_GPR13_SATA_PHY_8_MASK	(7<<24)
+#define IOMUXC_GPR13_SATA_PHY_7_MASK	(0x1f<<19)
+#define IOMUXC_GPR13_SATA_PHY_6_SHIFT	16
+#define IOMUXC_GPR13_SATA_PHY_6_MASK	(7<<IOMUXC_GPR13_SATA_PHY_6_SHIFT)
+#define IOMUXC_GPR13_SATA_SPEED_MASK	(1<<15)
+#define IOMUXC_GPR13_SATA_PHY_5_MASK	(1<<14)
+#define IOMUXC_GPR13_SATA_PHY_4_MASK	(7<<11)
+#define IOMUXC_GPR13_SATA_PHY_3_MASK	(0x1f<<7)
+#define IOMUXC_GPR13_SATA_PHY_2_MASK	(0x1f<<2)
+#define IOMUXC_GPR13_SATA_PHY_1_MASK	(3<<0)
+
+#define IOMUXC_GPR13_SATA_PHY_8_RXEQ_0P5DB	(0b000<<24)
+#define IOMUXC_GPR13_SATA_PHY_8_RXEQ_1P0DB	(0b001<<24)
+#define IOMUXC_GPR13_SATA_PHY_8_RXEQ_1P5DB	(0b010<<24)
+#define IOMUXC_GPR13_SATA_PHY_8_RXEQ_2P0DB	(0b011<<24)
+#define IOMUXC_GPR13_SATA_PHY_8_RXEQ_2P5DB	(0b100<<24)
+#define IOMUXC_GPR13_SATA_PHY_8_RXEQ_3P0DB	(0b101<<24)
+#define IOMUXC_GPR13_SATA_PHY_8_RXEQ_3P5DB	(0b110<<24)
+#define IOMUXC_GPR13_SATA_PHY_8_RXEQ_4P0DB	(0b111<<24)
+
+#define IOMUXC_GPR13_SATA_PHY_7_SATA1I	(0b10000<<19)
+#define IOMUXC_GPR13_SATA_PHY_7_SATA1M	(0b10000<<19)
+#define IOMUXC_GPR13_SATA_PHY_7_SATA1X	(0b11010<<19)
+#define IOMUXC_GPR13_SATA_PHY_7_SATA2I	(0b10010<<19)
+#define IOMUXC_GPR13_SATA_PHY_7_SATA2M	(0b10010<<19)
+#define IOMUXC_GPR13_SATA_PHY_7_SATA2X	(0b11010<<19)
+
+#define IOMUXC_GPR13_SATA_SPEED_1P5G	(0<<15)
+#define IOMUXC_GPR13_SATA_SPEED_3G	(1<<15)
+
+#define IOMUXC_GPR13_SATA_SATA_PHY_5_SS_DISABLED	(0<<14)
+#define IOMUXC_GPR13_SATA_SATA_PHY_5_SS_ENABLED		(1<<14)
+
+#define IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_16_16	(0<<11)
+#define IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_14_16	(1<<11)
+#define IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_12_16	(2<<11)
+#define IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_10_16	(3<<11)
+#define IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_9_16		(4<<11)
+#define IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_8_16		(5<<11)
+
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_0P00_DB	(0b0000<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_0P37_DB	(0b0001<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_0P74_DB	(0b0010<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_1P11_DB	(0b0011<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_1P48_DB	(0b0100<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_1P85_DB	(0b0101<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_2P22_DB	(0b0110<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_2P59_DB	(0b0111<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_2P96_DB	(0b1000<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_3P33_DB	(0b1001<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_3P70_DB	(0b1010<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_4P07_DB	(0b1011<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_4P44_DB	(0b1100<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_4P81_DB	(0b1101<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_5P28_DB	(0b1110<<7)
+#define IOMUXC_GPR13_SATA_PHY_3_TXBOOST_5P75_DB	(0b1111<<7)
+
+#define IOMUXC_GPR13_SATA_PHY_2_TX_0P937V	(0b00000<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_0P947V	(0b00001<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_0P957V	(0b00010<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_0P966V	(0b00011<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_0P976V	(0b00100<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_0P986V	(0b00101<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_0P996V	(0b00110<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P005V	(0b00111<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P015V	(0b01000<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P025V	(0b01001<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P035V	(0b01010<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P045V	(0b01011<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P054V	(0b01100<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P064V	(0b01101<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P074V	(0b01110<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P084V	(0b01111<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P094V	(0b10000<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P104V	(0b10001<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P113V	(0b10010<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P123V	(0b10011<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P133V	(0b10100<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P143V	(0b10101<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P152V	(0b10110<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P162V	(0b10111<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P172V	(0b11000<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P182V	(0b11001<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P191V	(0b11010<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P201V	(0b11011<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P211V	(0b11100<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P221V	(0b11101<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P230V	(0b11110<<2)
+#define IOMUXC_GPR13_SATA_PHY_2_TX_1P240V	(0b11111<<2)
+
+#define IOMUXC_GPR13_SATA_PHY_1_FAST	0
+#define IOMUXC_GPR13_SATA_PHY_1_MEDIUM	1
+#define IOMUXC_GPR13_SATA_PHY_1_SLOW	2
+
+#define IOMUXC_GPR13_SATA_MASK (IOMUXC_GPR13_SATA_PHY_8_MASK \
+				|IOMUXC_GPR13_SATA_PHY_7_MASK \
+				|IOMUXC_GPR13_SATA_PHY_6_MASK \
+				|IOMUXC_GPR13_SATA_SPEED_MASK \
+				|IOMUXC_GPR13_SATA_PHY_5_MASK \
+				|IOMUXC_GPR13_SATA_PHY_4_MASK \
+				|IOMUXC_GPR13_SATA_PHY_3_MASK \
+				|IOMUXC_GPR13_SATA_PHY_2_MASK \
+				|IOMUXC_GPR13_SATA_PHY_1_MASK)
+
 #endif	/* __MACH_IOMUX_V3_H__*/