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[u-boot] / arch / arm / imx-common / sata.c
1 /*
2  * Copyright 2011 Freescale Semiconductor, Inc.
3  *
4  * SPDX-License-Identifier:     GPL-2.0+
5  */
6
7 #include <asm/imx-common/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_cpu_type(MXC_CPU_MX6Q) && !is_cpu_type(MXC_CPU_MX6D))
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 }