xref: /openbmc/u-boot/arch/arm/mach-imx/sata.c (revision 78a88f79)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2011 Freescale Semiconductor, Inc.
4  */
5 
6 #include <asm/mach-imx/iomux-v3.h>
7 #include <asm/arch/iomux.h>
8 #include <asm/io.h>
9 #include <asm/arch/clock.h>
10 #include <asm/arch/sys_proto.h>
11 
12 int setup_sata(void)
13 {
14 	struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
15 	int ret;
16 
17 	if (!is_mx6dq() && !is_mx6dqp())
18 		return 1;
19 
20 	ret = enable_sata_clock();
21 	if (ret)
22 		return ret;
23 
24 	clrsetbits_le32(&iomuxc_regs->gpr[13],
25 			IOMUXC_GPR13_SATA_MASK,
26 			IOMUXC_GPR13_SATA_PHY_8_RXEQ_3P0DB
27 			|IOMUXC_GPR13_SATA_PHY_7_SATA2M
28 			|IOMUXC_GPR13_SATA_SPEED_3G
29 			|(3<<IOMUXC_GPR13_SATA_PHY_6_SHIFT)
30 			|IOMUXC_GPR13_SATA_SATA_PHY_5_SS_DISABLED
31 			|IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_9_16
32 			|IOMUXC_GPR13_SATA_PHY_3_TXBOOST_0P00_DB
33 			|IOMUXC_GPR13_SATA_PHY_2_TX_1P104V
34 			|IOMUXC_GPR13_SATA_PHY_1_SLOW);
35 
36 	return 0;
37 }
38