xref: /openbmc/u-boot/arch/arm/mach-imx/sata.c (revision a3b36c84)
1 /*
2  * Copyright 2011 Freescale Semiconductor, Inc.
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <asm/mach-imx/iomux-v3.h>
8 #include <asm/arch/iomux.h>
9 #include <asm/io.h>
10 #include <asm/arch/clock.h>
11 #include <asm/arch/sys_proto.h>
12 
13 int setup_sata(void)
14 {
15 	struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
16 	int ret;
17 
18 	if (!is_mx6dq() && !is_mx6dqp())
19 		return 1;
20 
21 	ret = enable_sata_clock();
22 	if (ret)
23 		return ret;
24 
25 	clrsetbits_le32(&iomuxc_regs->gpr[13],
26 			IOMUXC_GPR13_SATA_MASK,
27 			IOMUXC_GPR13_SATA_PHY_8_RXEQ_3P0DB
28 			|IOMUXC_GPR13_SATA_PHY_7_SATA2M
29 			|IOMUXC_GPR13_SATA_SPEED_3G
30 			|(3<<IOMUXC_GPR13_SATA_PHY_6_SHIFT)
31 			|IOMUXC_GPR13_SATA_SATA_PHY_5_SS_DISABLED
32 			|IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_9_16
33 			|IOMUXC_GPR13_SATA_PHY_3_TXBOOST_0P00_DB
34 			|IOMUXC_GPR13_SATA_PHY_2_TX_1P104V
35 			|IOMUXC_GPR13_SATA_PHY_1_SLOW);
36 
37 	return 0;
38 }
39