arch/arm/mach-imx/sata.c

   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 }