[U-Boot] [EXT] Re: [v2 1/5] Revert "ata: fsl_ahci: Add sata DM support for Freescale powerpc socs"

Peng Ma peng.ma at nxp.com
Mon Dec 2 09:25:12 CET 2019



>-----Original Message-----
>From: Stefan Roese <sr at denx.de>
>Sent: 2019年12月2日 15:59
>To: Peng Ma <peng.ma at nxp.com>; Priyanka Jain <priyanka.jain at nxp.com>;
>wd at denx.de; Ruchika Gupta <ruchika.gupta at nxp.com>; Shengzhou Liu
><shengzhou.liu at nxp.com>
>Cc: Yinbo Zhu <yinbo.zhu at nxp.com>; Z.q. Hou <zhiqiang.hou at nxp.com>;
>sjg at chromium.org; jagan at openedev.com; andre.przywara at arm.com;
>smoch at web.de; Andy Tang <andy.tang at nxp.com>; u-boot at lists.denx.de
>Subject: [EXT] Re: [v2 1/5] Revert "ata: fsl_ahci: Add sata DM support for
>Freescale powerpc socs"
>
>Caution: EXT Email
>
>Hi Peng,
>
>On 02.12.19 04:40, Peng Ma wrote:
>> This reverts commit 1ee494291880fd51ef0c5f7342e072bdb069d7ff.
>>
>> Commit 1ee494291880 ("ata: fsl_ahci: Add sata DM support for Freescale
>> powerpc socs") introduced SCSI layer to call AHCI private API in order
>> to support sata operations, In DM mode, This is not necessary for
>> non-AHCI sata. So revert it and have already updated the driver itself
>> to operate sata directly.
>>
>> Signed-off-by: Peng Ma <peng.ma at nxp.com>
>> ---
>> Changed for v2:
>>       - Add detailed explanation.
>
>Thanks for adding a more detailed decription here. But at first glance I still
>failed to unterstand this. What's missing is (at least for me), that you explain
>that you added a new DM enabled SATA driver to support this controller [1]
>which makes this AHCI driver superfluous.
>
>Is this explanation correct?
>
>If yes, then feel free to add my:
>
>Reviewed-by: Stefan Roese <sr at denx.de>
>
>to the complete patchset.
>
Hi, Stefan,

Thanks for your quick comments, You understand exactly right.

Best Regards,
Peng
>Thanks,
>Stefan
>
>[1] drivers/ata/fsl_sata.c
>
>>   drivers/ata/Kconfig    |   10 -
>>   drivers/ata/Makefile   |    1 -
>>   drivers/ata/fsl_ahci.c | 1030 ----------------------------------------
>>   drivers/ata/fsl_sata.h |    1 -
>>   4 files changed, 1042 deletions(-)
>>   delete mode 100644 drivers/ata/fsl_ahci.c
>>
>> diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index
>> fe589d3aa8..d8c9756c2a 100644
>> --- a/drivers/ata/Kconfig
>> +++ b/drivers/ata/Kconfig
>> @@ -59,16 +59,6 @@ config DWC_AHCI
>>         Enable this driver to support Sata devices through
>>         Synopsys DWC AHCI module.
>>
>> -config FSL_AHCI
>> -     bool "Enable Freescale AHCI driver support"
>> -     select SCSI_AHCI
>> -     depends on AHCI
>> -     depends on DM_SCSI
>> -     help
>> -       Enable this driver to support Sata devices found in
>> -       some Freescale PowerPC SoCs.
>> -
>> -
>>   config DWC_AHSATA
>>       bool "Enable DWC AHSATA driver support"
>>       select LIBATA
>> diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile index
>> 6e03384f81..a69edb10f7 100644
>> --- a/drivers/ata/Makefile
>> +++ b/drivers/ata/Makefile
>> @@ -4,7 +4,6 @@
>>   # Wolfgang Denk, DENX Software Engineering, wd at denx.de.
>>
>>   obj-$(CONFIG_DWC_AHCI) += dwc_ahci.o
>> -obj-$(CONFIG_FSL_AHCI) += fsl_ahci.o
>>   obj-$(CONFIG_AHCI) += ahci-uclass.o
>>   obj-$(CONFIG_AHCI_PCI) += ahci-pci.o
>>   obj-$(CONFIG_SCSI_AHCI) += ahci.o
>> diff --git a/drivers/ata/fsl_ahci.c b/drivers/ata/fsl_ahci.c deleted
>> file mode 100644 index d04cff3ee7..0000000000
>> --- a/drivers/ata/fsl_ahci.c
>> +++ /dev/null
>> @@ -1,1030 +0,0 @@
>> -// SPDX-License-Identifier: GPL-2.0+
>> -/*
>> - * NXP PPC SATA platform driver
>> - *
>> - * (C) Copyright 2019 NXP, Inc.
>> - *
>> - */
>> -#include <common.h>
>> -#include <asm/fsl_serdes.h>
>> -#include <dm/lists.h>
>> -#include <dm.h>
>> -#include <ahci.h>
>> -#include <scsi.h>
>> -#include <libata.h>
>> -#include <sata.h>
>> -#include <malloc.h>
>> -#include <memalign.h>
>> -#include <fis.h>
>> -
>> -#include "fsl_sata.h"
>> -
>> -struct fsl_ahci_priv {
>> -     u32 base;
>> -     u32 flag;
>> -     u32 number;
>> -     fsl_sata_t *fsl_sata;
>> -};
>> -
>> -static int fsl_ahci_bind(struct udevice *dev) -{
>> -     return device_bind_driver(dev, "fsl_ahci_scsi", "fsl_ahci_scsi", NULL);
>> -}
>> -
>> -static int fsl_ahci_ofdata_to_platdata(struct udevice *dev) -{
>> -     struct fsl_ahci_priv *priv = dev_get_priv(dev);
>> -
>> -     priv->number = dev_read_u32_default(dev, "sata-number", -1);
>> -     priv->flag = dev_read_u32_default(dev, "sata-fpdma", -1);
>> -
>> -     priv->base = dev_read_addr(dev);
>> -     if (priv->base == FDT_ADDR_T_NONE)
>> -             return -EINVAL;
>> -
>> -     return 0;
>> -}
>> -
>> -static int ata_wait_register(unsigned __iomem *addr, u32 mask,
>> -                          u32 val, u32 timeout_msec)
>> -{
>> -     int i;
>> -
>> -     for (i = 0; ((in_le32(addr) & mask) != val) && i < timeout_msec; i++)
>> -             mdelay(1);
>> -
>> -     return (i < timeout_msec) ? 0 : -1;
>> -}
>> -
>> -static void fsl_sata_dump_sfis(struct sata_fis_d2h *s) -{
>> -     printf("Status FIS dump:\n\r");
>> -     printf("fis_type:               %02x\n\r", s->fis_type);
>> -     printf("pm_port_i:              %02x\n\r", s->pm_port_i);
>> -     printf("status:                 %02x\n\r", s->status);
>> -     printf("error:                  %02x\n\r", s->error);
>> -     printf("lba_low:                %02x\n\r", s->lba_low);
>> -     printf("lba_mid:                %02x\n\r", s->lba_mid);
>> -     printf("lba_high:               %02x\n\r", s->lba_high);
>> -     printf("device:                 %02x\n\r", s->device);
>> -     printf("lba_low_exp:            %02x\n\r", s->lba_low_exp);
>> -     printf("lba_mid_exp:            %02x\n\r", s->lba_mid_exp);
>> -     printf("lba_high_exp:           %02x\n\r", s->lba_high_exp);
>> -     printf("res1:                   %02x\n\r", s->res1);
>> -     printf("sector_count:           %02x\n\r", s->sector_count);
>> -     printf("sector_count_exp:       %02x\n\r", s->sector_count_exp);
>> -}
>> -
>> -static void fsl_sata_dump_regs(fsl_sata_reg_t __iomem *reg) -{
>> -     printf("\n\rSATA:           %08x\n\r", (u32)reg);
>> -     printf("CQR:            %08x\n\r", in_le32(&reg->cqr));
>> -     printf("CAR:            %08x\n\r", in_le32(&reg->car));
>> -     printf("CCR:            %08x\n\r", in_le32(&reg->ccr));
>> -     printf("CER:            %08x\n\r", in_le32(&reg->cer));
>> -     printf("CQR:            %08x\n\r", in_le32(&reg->cqr));
>> -     printf("DER:            %08x\n\r", in_le32(&reg->der));
>> -     printf("CHBA:           %08x\n\r", in_le32(&reg->chba));
>> -     printf("HStatus:        %08x\n\r", in_le32(&reg->hstatus));
>> -     printf("HControl:       %08x\n\r", in_le32(&reg->hcontrol));
>> -     printf("CQPMP:          %08x\n\r", in_le32(&reg->cqpmp));
>> -     printf("SIG:            %08x\n\r", in_le32(&reg->sig));
>> -     printf("ICC:            %08x\n\r", in_le32(&reg->icc));
>> -     printf("SStatus:        %08x\n\r", in_le32(&reg->sstatus));
>> -     printf("SError:         %08x\n\r", in_le32(&reg->serror));
>> -     printf("SControl:       %08x\n\r", in_le32(&reg->scontrol));
>> -     printf("SNotification:  %08x\n\r", in_le32(&reg->snotification));
>> -     printf("TransCfg:       %08x\n\r", in_le32(&reg->transcfg));
>> -     printf("TransStatus:    %08x\n\r", in_le32(&reg->transstatus));
>> -     printf("LinkCfg:        %08x\n\r", in_le32(&reg->linkcfg));
>> -     printf("LinkCfg1:       %08x\n\r", in_le32(&reg->linkcfg1));
>> -     printf("LinkCfg2:       %08x\n\r", in_le32(&reg->linkcfg2));
>> -     printf("LinkStatus:     %08x\n\r", in_le32(&reg->linkstatus));
>> -     printf("LinkStatus1:    %08x\n\r", in_le32(&reg->linkstatus1));
>> -     printf("PhyCtrlCfg:     %08x\n\r", in_le32(&reg->phyctrlcfg));
>> -     printf("SYSPR:          %08x\n\r", in_be32(&reg->syspr));
>> -}
>> -
>> -static int init_sata(struct fsl_ahci_priv *priv) -{
>> -     int i;
>> -     u32 cda;
>> -     u32 val32;
>> -     u32 sig;
>> -     fsl_sata_t *sata;
>> -     u32 length, align;
>> -     cmd_hdr_tbl_t *cmd_hdr;
>> -     fsl_sata_reg_t __iomem *reg;
>> -
>> -     int dev = priv->number;
>> -
>> -     if (dev < 0 || dev > (CONFIG_SYS_SATA_MAX_DEVICE - 1)) {
>> -             printf("the sata index %d is out of ranges\n\r", dev);
>> -             return -EINVAL;
>> -     }
>> -
>> -#ifdef CONFIG_MPC85xx
>> -     if (dev == 0 && (!is_serdes_configured(SATA1))) {
>> -             printf("SATA%d [dev = %d] is not enabled\n", dev + 1, dev);
>> -             return -EINVAL;
>> -     }
>> -     if (dev == 1 && (!is_serdes_configured(SATA2))) {
>> -             printf("SATA%d [dev = %d] is not enabled\n", dev + 1, dev);
>> -             return -EINVAL;
>> -     }
>> -#endif
>> -
>> -     /* Allocate SATA device driver struct */
>> -     sata = (fsl_sata_t *)malloc(sizeof(fsl_sata_t));
>> -     if (!sata) {
>> -             printf("alloc the sata device struct failed\n\r");
>> -             return -ENOMEM;
>> -     }
>> -     /* Zero all of the device driver struct */
>> -     memset((void *)sata, 0, sizeof(fsl_sata_t));
>> -
>> -     sata->dma_flag = priv->flag;
>> -     snprintf(sata->name, 12, "SATA%d", dev);
>> -
>> -     /* Set the controller register base address to device struct */
>> -     reg = (fsl_sata_reg_t *)priv->base;
>> -     sata->reg_base = reg;
>> -
>> -     /* Allocate the command header table, 4 bytes aligned */
>> -     length = sizeof(struct cmd_hdr_tbl);
>> -     align = SATA_HC_CMD_HDR_TBL_ALIGN;
>> -     sata->cmd_hdr_tbl_offset = (void *)malloc(length + align);
>> -     if (!sata->cmd_hdr_tbl_offset) {
>> -             printf("alloc the command header failed\n\r");
>> -             return -ENOMEM;
>> -     }
>> -
>> -     cmd_hdr = (cmd_hdr_tbl_t *)(((u32)sata->cmd_hdr_tbl_offset + align)
>> -                                             & ~(align - 1));
>> -     sata->cmd_hdr = cmd_hdr;
>> -
>> -     /* Zero all of the command header table */
>> -     memset((void *)sata->cmd_hdr_tbl_offset, 0, length + align);
>> -
>> -     /* Allocate command descriptor for all command */
>> -     length = sizeof(struct cmd_desc) * SATA_HC_MAX_CMD;
>> -     align = SATA_HC_CMD_DESC_ALIGN;
>> -     sata->cmd_desc_offset = (void *)malloc(length + align);
>> -     if (!sata->cmd_desc_offset) {
>> -             printf("alloc the command descriptor failed\n\r");
>> -             return -ENOMEM;
>> -     }
>> -     sata->cmd_desc = (cmd_desc_t *)(((u32)sata->cmd_desc_offset +
>align)
>> -                                             & ~(align - 1));
>> -     /* Zero all of command descriptor */
>> -     memset((void *)sata->cmd_desc_offset, 0, length + align);
>> -
>> -     /* Link the command descriptor to command header */
>> -     for (i = 0; i < SATA_HC_MAX_CMD; i++) {
>> -             cda = ((u32)sata->cmd_desc + SATA_HC_CMD_DESC_SIZE *
>i)
>> -                                      & ~(CMD_HDR_CDA_ALIGN
>- 1);
>> -             cmd_hdr->cmd_slot[i].cda = cpu_to_le32(cda);
>> -     }
>> -
>> -     /* To have safe state, force the controller offline */
>> -     val32 = in_le32(&reg->hcontrol);
>> -     val32 &= ~HCONTROL_ONOFF;
>> -     val32 |= HCONTROL_FORCE_OFFLINE;
>> -     out_le32(&reg->hcontrol, val32);
>> -
>> -     /* Wait the controller offline */
>> -     ata_wait_register(&reg->hstatus, HSTATUS_ONOFF, 0, 1000);
>> -
>> -     /* Set the command header base address to CHBA register to tell
>DMA */
>> -     out_le32(&reg->chba, (u32)cmd_hdr & ~0x3);
>> -
>> -     /* Snoop for the command header */
>> -     val32 = in_le32(&reg->hcontrol);
>> -     val32 |= HCONTROL_HDR_SNOOP;
>> -     out_le32(&reg->hcontrol, val32);
>> -
>> -     /* Disable all of interrupts */
>> -     val32 = in_le32(&reg->hcontrol);
>> -     val32 &= ~HCONTROL_INT_EN_ALL;
>> -     out_le32(&reg->hcontrol, val32);
>> -
>> -     /* Clear all of interrupts */
>> -     val32 = in_le32(&reg->hstatus);
>> -     out_le32(&reg->hstatus, val32);
>> -
>> -     /* Set the ICC, no interrupt coalescing */
>> -     out_le32(&reg->icc, 0x01000000);
>> -
>> -     /* No PM attatched, the SATA device direct connect */
>> -     out_le32(&reg->cqpmp, 0);
>> -
>> -     /* Clear SError register */
>> -     val32 = in_le32(&reg->serror);
>> -     out_le32(&reg->serror, val32);
>> -
>> -     /* Clear CER register */
>> -     val32 = in_le32(&reg->cer);
>> -     out_le32(&reg->cer, val32);
>> -
>> -     /* Clear DER register */
>> -     val32 = in_le32(&reg->der);
>> -     out_le32(&reg->der, val32);
>> -
>> -     /* No device detection or initialization action requested */
>> -     out_le32(&reg->scontrol, 0x00000300);
>> -
>> -     /* Configure the transport layer, default value */
>> -     out_le32(&reg->transcfg, 0x08000016);
>> -
>> -     /* Configure the link layer, default value */
>> -     out_le32(&reg->linkcfg, 0x0000ff34);
>> -
>> -     /* Bring the controller online */
>> -     val32 = in_le32(&reg->hcontrol);
>> -     val32 |= HCONTROL_ONOFF;
>> -     out_le32(&reg->hcontrol, val32);
>> -
>> -     mdelay(100);
>> -
>> -     /* print sata device name */
>> -     printf("%s ", sata->name);
>> -
>> -     /* Wait PHY RDY signal changed for 500ms */
>> -     ata_wait_register(&reg->hstatus, HSTATUS_PHY_RDY,
>> -                       HSTATUS_PHY_RDY, 500);
>> -
>> -     /* Check PHYRDY */
>> -     val32 = in_le32(&reg->hstatus);
>> -     if (val32 & HSTATUS_PHY_RDY) {
>> -             sata->link = 1;
>> -     } else {
>> -             sata->link = 0;
>> -             printf("(No RDY)\n\r");
>> -             return -EINVAL;
>> -     }
>> -
>> -     /* Wait for signature updated, which is 1st D2H */
>> -     ata_wait_register(&reg->hstatus, HSTATUS_SIGNATURE,
>> -                       HSTATUS_SIGNATURE, 10000);
>> -
>> -     if (val32 & HSTATUS_SIGNATURE) {
>> -             sig = in_le32(&reg->sig);
>> -             debug("Signature updated, the sig =%08x\n\r", sig);
>> -             sata->ata_device_type = ata_dev_classify(sig);
>> -     }
>> -
>> -     /* Check the speed */
>> -     val32 = in_le32(&reg->sstatus);
>> -     if ((val32 & SSTATUS_SPD_MASK) == SSTATUS_SPD_GEN1)
>> -             printf("(1.5 Gbps)\n\r");
>> -     else if ((val32 & SSTATUS_SPD_MASK) == SSTATUS_SPD_GEN2)
>> -             printf("(3 Gbps)\n\r");
>> -
>> -     priv->fsl_sata = sata;
>> -
>> -     return 0;
>> -}
>> -
>> -static int fsl_ata_exec_ata_cmd(struct fsl_sata *sata,
>> -                             struct sata_fis_h2d *cfis,
>> -                             int is_ncq, int tag,
>> -                             u8 *buffer, u32 len)
>> -{
>> -     cmd_hdr_entry_t *cmd_hdr;
>> -     cmd_desc_t *cmd_desc;
>> -     sata_fis_h2d_t *h2d;
>> -     prd_entry_t *prde;
>> -     u32 ext_c_ddc;
>> -     u32 prde_count;
>> -     u32 val32;
>> -     u32 ttl;
>> -     u32 der;
>> -     int i;
>> -
>> -     fsl_sata_reg_t *reg = sata->reg_base;
>> -
>> -     /* Check xfer length */
>> -     if (len > SATA_HC_MAX_XFER_LEN) {
>> -             printf("max transfer length is 64MB\n\r");
>> -             return 0;
>> -     }
>> -
>> -     /* Setup the command descriptor */
>> -     cmd_desc = sata->cmd_desc + tag;
>> -
>> -     /* Get the pointer cfis of command descriptor */
>> -     h2d = (sata_fis_h2d_t *)cmd_desc->cfis;
>> -
>> -     /* Zero the cfis of command descriptor */
>> -     memset((void *)h2d, 0, SATA_HC_CMD_DESC_CFIS_SIZE);
>> -
>> -     /* Copy the cfis from user to command descriptor */
>> -     h2d->fis_type = cfis->fis_type;
>> -     h2d->pm_port_c = cfis->pm_port_c;
>> -     h2d->command = cfis->command;
>> -
>> -     h2d->features = cfis->features;
>> -     h2d->features_exp = cfis->features_exp;
>> -
>> -     h2d->lba_low = cfis->lba_low;
>> -     h2d->lba_mid = cfis->lba_mid;
>> -     h2d->lba_high = cfis->lba_high;
>> -     h2d->lba_low_exp = cfis->lba_low_exp;
>> -     h2d->lba_mid_exp = cfis->lba_mid_exp;
>> -     h2d->lba_high_exp = cfis->lba_high_exp;
>> -
>> -     if (!is_ncq) {
>> -             h2d->sector_count = cfis->sector_count;
>> -             h2d->sector_count_exp = cfis->sector_count_exp;
>> -     } else { /* NCQ */
>> -             h2d->sector_count = (u8)(tag << 3);
>> -     }
>> -
>> -     h2d->device = cfis->device;
>> -     h2d->control = cfis->control;
>> -
>> -     /* Setup the PRD table */
>> -     prde = (prd_entry_t *)cmd_desc->prdt;
>> -     memset((void *)prde, 0, sizeof(struct prdt));
>> -
>> -     prde_count = 0;
>> -     ttl = len;
>> -     for (i = 0; i < SATA_HC_MAX_PRD_DIRECT; i++) {
>> -             if (!len)
>> -                     break;
>> -             prde->dba = cpu_to_le32((u32)buffer & ~0x3);
>> -             debug("dba = %08x\n\r", (u32)buffer);
>> -
>> -             if (len < PRD_ENTRY_MAX_XFER_SZ) {
>> -                     ext_c_ddc = PRD_ENTRY_DATA_SNOOP | len;
>> -                     debug("ext_c_ddc1 = %08x, len = %08x\n\r",
>> -                           ext_c_ddc, len);
>> -                     prde->ext_c_ddc = cpu_to_le32(ext_c_ddc);
>> -                     prde_count++;
>> -                     prde++;
>> -             } else {
>> -                     ext_c_ddc = PRD_ENTRY_DATA_SNOOP; /* 4M
>bytes */
>> -                     debug("ext_c_ddc2 = %08x, len = %08x\n\r",
>> -                           ext_c_ddc, len);
>> -                     prde->ext_c_ddc = cpu_to_le32(ext_c_ddc);
>> -                     buffer += PRD_ENTRY_MAX_XFER_SZ;
>> -                     len -= PRD_ENTRY_MAX_XFER_SZ;
>> -                     prde_count++;
>> -                     prde++;
>> -             }
>> -     }
>> -
>> -     /* Setup the command slot of cmd hdr */
>> -     cmd_hdr = (cmd_hdr_entry_t *)&sata->cmd_hdr->cmd_slot[tag];
>> -
>> -     cmd_hdr->cda = cpu_to_le32((u32)cmd_desc & ~0x3);
>> -
>> -     val32 = prde_count << CMD_HDR_PRD_ENTRY_SHIFT;
>> -     val32 |= sizeof(sata_fis_h2d_t);
>> -     cmd_hdr->prde_fis_len = cpu_to_le32(val32);
>> -
>> -     cmd_hdr->ttl = cpu_to_le32(ttl);
>> -
>> -     if (!is_ncq)
>> -             val32 = CMD_HDR_ATTR_RES | CMD_HDR_ATTR_SNOOP;
>> -     else
>> -             val32 = CMD_HDR_ATTR_RES | CMD_HDR_ATTR_SNOOP |
>> -                     CMD_HDR_ATTR_FPDMA;
>> -
>> -     tag &= CMD_HDR_ATTR_TAG;
>> -     val32 |= tag;
>> -
>> -     debug("attribute = %08x\n\r", val32);
>> -     cmd_hdr->attribute = cpu_to_le32(val32);
>> -
>> -     /* Make sure cmd desc and cmd slot valid before command issue */
>> -     sync();
>> -
>> -     /* PMP*/
>> -     val32 = (u32)(h2d->pm_port_c & 0x0f);
>> -     out_le32(&reg->cqpmp, val32);
>> -
>> -     /* Wait no active */
>> -     if (ata_wait_register(&reg->car, (1 << tag), 0, 10000))
>> -             printf("Wait no active time out\n\r");
>> -
>> -     /* Issue command */
>> -     if (!(in_le32(&reg->cqr) & (1 << tag))) {
>> -             val32 = 1 << tag;
>> -             out_le32(&reg->cqr, val32);
>> -     }
>> -
>> -     /* Wait command completed for 10s */
>> -     if (ata_wait_register(&reg->ccr, (1 << tag), (1 << tag), 10000)) {
>> -             if (!is_ncq)
>> -                     printf("Non-NCQ command time out\n\r");
>> -             else
>> -                     printf("NCQ command time out\n\r");
>> -     }
>> -
>> -     val32 = in_le32(&reg->cer);
>> -
>> -     if (val32) {
>> -             fsl_sata_dump_sfis((struct sata_fis_d2h *)cmd_desc->sfis);
>> -             printf("CE at device\n\r");
>> -             fsl_sata_dump_regs(reg);
>> -             der = in_le32(&reg->der);
>> -             out_le32(&reg->cer, val32);
>> -             out_le32(&reg->der, der);
>> -     }
>> -
>> -     /* Clear complete flags */
>> -     val32 = in_le32(&reg->ccr);
>> -     out_le32(&reg->ccr, val32);
>> -
>> -     return len;
>> -}
>> -
>> -static int fsl_sata_exec_cmd(struct fsl_sata *sata, struct sata_fis_h2d *cfis,
>> -                          enum cmd_type command_type, int tag, u8
>*buffer,
>> -                          u32 len)
>> -{
>> -     int rc;
>> -
>> -     if (tag > SATA_HC_MAX_CMD || tag < 0) {
>> -             printf("tag is out of range, tag=%d\n\r", tag);
>> -             return -1;
>> -     }
>> -
>> -     switch (command_type) {
>> -     case CMD_ATA:
>> -             rc = fsl_ata_exec_ata_cmd(sata, cfis, 0, tag, buffer, len);
>> -             return rc;
>> -     case CMD_NCQ:
>> -             rc = fsl_ata_exec_ata_cmd(sata, cfis, 1, tag, buffer, len);
>> -             return rc;
>> -     case CMD_ATAPI:
>> -     case CMD_VENDOR_BIST:
>> -     case CMD_BIST:
>> -             printf("not support now\n\r");
>> -             return -1;
>> -     default:
>> -             break;
>> -     }
>> -
>> -     return -1;
>> -}
>> -
>> -static void fsl_sata_identify(fsl_sata_t *sata, u16 *id) -{
>> -     struct sata_fis_h2d h2d, *cfis = &h2d;
>> -
>> -     memset(cfis, 0, sizeof(struct sata_fis_h2d));
>> -
>> -     cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
>> -     cfis->pm_port_c = 0x80; /* is command */
>> -     cfis->command = ATA_CMD_ID_ATA;
>> -
>> -     fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, (u8 *)id, ATA_ID_WORDS *
>2);
>> -     ata_swap_buf_le16(id, ATA_ID_WORDS);
>> -}
>> -
>> -static void fsl_sata_xfer_mode(fsl_sata_t *sata, u16 *id) -{
>> -     sata->pio = id[ATA_ID_PIO_MODES];
>> -     sata->mwdma = id[ATA_ID_MWDMA_MODES];
>> -     sata->udma = id[ATA_ID_UDMA_MODES];
>> -     debug("pio %04x, mwdma %04x, udma %04x\n\r", sata->pio,
>> -           sata->mwdma, sata->udma);
>> -}
>> -
>> -static void fsl_sata_init_wcache(fsl_sata_t *sata, u16 *id) -{
>> -     if (ata_id_has_wcache(id) && ata_id_wcache_enabled(id))
>> -             sata->wcache = 1;
>> -     if (ata_id_has_flush(id))
>> -             sata->flush = 1;
>> -     if (ata_id_has_flush_ext(id))
>> -             sata->flush_ext = 1;
>> -}
>> -
>> -static void fsl_sata_set_features(fsl_sata_t *sata) -{
>> -     struct sata_fis_h2d h2d, *cfis = &h2d;
>> -     u8 udma_cap;
>> -
>> -     memset(cfis, 0, sizeof(struct sata_fis_h2d));
>> -
>> -     cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
>> -     cfis->pm_port_c = 0x80; /* is command */
>> -     cfis->command = ATA_CMD_SET_FEATURES;
>> -     cfis->features = SETFEATURES_XFER;
>> -
>> -     /* First check the device capablity */
>> -     udma_cap = (u8)(sata->udma & 0xff);
>> -     debug("udma_cap %02x\n\r", udma_cap);
>> -
>> -     if (udma_cap == ATA_UDMA6)
>> -             cfis->sector_count = XFER_UDMA_6;
>> -     if (udma_cap == ATA_UDMA5)
>> -             cfis->sector_count = XFER_UDMA_5;
>> -     if (udma_cap == ATA_UDMA4)
>> -             cfis->sector_count = XFER_UDMA_4;
>> -     if (udma_cap == ATA_UDMA3)
>> -             cfis->sector_count = XFER_UDMA_3;
>> -
>> -     fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, NULL, 0);
>> -}
>> -
>> -static u32 fsl_sata_rw_cmd(fsl_sata_t *sata, u32 start, u32 blkcnt,
>> -                        u8 *buffer, int is_write)
>> -{
>> -     struct sata_fis_h2d h2d, *cfis = &h2d;
>> -     u32 block;
>> -
>> -     block = start;
>> -
>> -     memset(cfis, 0, sizeof(struct sata_fis_h2d));
>> -
>> -     cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
>> -     cfis->pm_port_c = 0x80; /* is command */
>> -     cfis->command = (is_write) ? ATA_CMD_WRITE : ATA_CMD_READ;
>> -     cfis->device = ATA_LBA;
>> -
>> -     cfis->device |= (block >> 24) & 0xf;
>> -     cfis->lba_high = (block >> 16) & 0xff;
>> -     cfis->lba_mid = (block >> 8) & 0xff;
>> -     cfis->lba_low = block & 0xff;
>> -     cfis->sector_count = (u8)(blkcnt & 0xff);
>> -
>> -     fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, buffer,
>> -                       ATA_SECT_SIZE * blkcnt);
>> -     return blkcnt;
>> -}
>> -
>> -static void fsl_sata_flush_cache(fsl_sata_t *sata) -{
>> -     struct sata_fis_h2d h2d, *cfis = &h2d;
>> -
>> -     memset(cfis, 0, sizeof(struct sata_fis_h2d));
>> -
>> -     cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
>> -     cfis->pm_port_c = 0x80; /* is command */
>> -     cfis->command = ATA_CMD_FLUSH;
>> -
>> -     fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, NULL, 0);
>> -}
>> -
>> -static u32 fsl_sata_rw_cmd_ext(fsl_sata_t *sata, u32 start,
>> -                            u32 blkcnt, u8 *buffer, int is_write)
>> -{
>> -     struct sata_fis_h2d h2d, *cfis = &h2d;
>> -     u64 block;
>> -
>> -     block = (u64)start;
>> -
>> -     memset(cfis, 0, sizeof(struct sata_fis_h2d));
>> -
>> -     cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
>> -     cfis->pm_port_c = 0x80; /* is command */
>> -
>> -     cfis->command = (is_write) ? ATA_CMD_WRITE_EXT
>> -                              : ATA_CMD_READ_EXT;
>> -
>> -     cfis->lba_high_exp = (block >> 40) & 0xff;
>> -     cfis->lba_mid_exp = (block >> 32) & 0xff;
>> -     cfis->lba_low_exp = (block >> 24) & 0xff;
>> -     cfis->lba_high = (block >> 16) & 0xff;
>> -     cfis->lba_mid = (block >> 8) & 0xff;
>> -     cfis->lba_low = block & 0xff;
>> -     cfis->device = ATA_LBA;
>> -     cfis->sector_count_exp = (blkcnt >> 8) & 0xff;
>> -     cfis->sector_count = blkcnt & 0xff;
>> -
>> -     fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, buffer,
>> -                       ATA_SECT_SIZE * blkcnt);
>> -     return blkcnt;
>> -}
>> -
>> -static u32 fsl_sata_rw_ncq_cmd(fsl_sata_t *sata, u32 start, u32 blkcnt,
>> -                            u8 *buffer,
>> -                            int is_write)
>> -{
>> -     struct sata_fis_h2d h2d, *cfis = &h2d;
>> -     int ncq_channel;
>> -     u64 block;
>> -
>> -     if (sata->lba48 != 1) {
>> -             printf("execute FPDMA command on non-LBA48 hard
>disk\n\r");
>> -             return -1;
>> -     }
>> -
>> -     block = (u64)start;
>> -
>> -     memset(cfis, 0, sizeof(struct sata_fis_h2d));
>> -
>> -     cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
>> -     cfis->pm_port_c = 0x80; /* is command */
>> -
>> -     cfis->command = (is_write) ? ATA_CMD_FPDMA_WRITE
>> -                              : ATA_CMD_FPDMA_READ;
>> -
>> -     cfis->lba_high_exp = (block >> 40) & 0xff;
>> -     cfis->lba_mid_exp = (block >> 32) & 0xff;
>> -     cfis->lba_low_exp = (block >> 24) & 0xff;
>> -     cfis->lba_high = (block >> 16) & 0xff;
>> -     cfis->lba_mid = (block >> 8) & 0xff;
>> -     cfis->lba_low = block & 0xff;
>> -
>> -     cfis->device = ATA_LBA;
>> -     cfis->features_exp = (blkcnt >> 8) & 0xff;
>> -     cfis->features = blkcnt & 0xff;
>> -
>> -     if (sata->queue_depth >= SATA_HC_MAX_CMD)
>> -             ncq_channel = SATA_HC_MAX_CMD - 1;
>> -     else
>> -             ncq_channel = sata->queue_depth - 1;
>> -
>> -     /* Use the latest queue */
>> -     fsl_sata_exec_cmd(sata, cfis, CMD_NCQ, ncq_channel, buffer,
>> -                       ATA_SECT_SIZE * blkcnt);
>> -     return blkcnt;
>> -}
>> -
>> -static void fsl_sata_flush_cache_ext(fsl_sata_t *sata) -{
>> -     struct sata_fis_h2d h2d, *cfis = &h2d;
>> -
>> -     memset(cfis, 0, sizeof(struct sata_fis_h2d));
>> -
>> -     cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
>> -     cfis->pm_port_c = 0x80; /* is command */
>> -     cfis->command = ATA_CMD_FLUSH_EXT;
>> -
>> -     fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, NULL, 0);
>> -}
>> -
>> -static u32 ata_low_level_rw_lba48(fsl_sata_t *sata, u32 blknr, lbaint_t
>blkcnt,
>> -                               const void *buffer, int is_write)
>> -{
>> -     u32 start, blks;
>> -     u8 *addr;
>> -     int max_blks;
>> -
>> -     start = blknr;
>> -     blks = blkcnt;
>> -     addr = (u8 *)buffer;
>> -
>> -     max_blks = ATA_MAX_SECTORS_LBA48;
>> -     do {
>> -             if (blks > max_blks) {
>> -                     if (sata->dma_flag != FLAGS_FPDMA)
>> -                             fsl_sata_rw_cmd_ext(sata, start,
>max_blks,
>> -                                                 addr, is_write);
>> -                     else
>> -                             fsl_sata_rw_ncq_cmd(sata, start,
>max_blks,
>> -                                                 addr, is_write);
>> -                     start += max_blks;
>> -                     blks -= max_blks;
>> -                     addr += ATA_SECT_SIZE * max_blks;
>> -             } else {
>> -                     if (sata->dma_flag != FLAGS_FPDMA)
>> -                             fsl_sata_rw_cmd_ext(sata, start, blks,
>> -                                                 addr, is_write);
>> -                     else
>> -                             fsl_sata_rw_ncq_cmd(sata, start, blks,
>> -                                                 addr, is_write);
>> -                     start += blks;
>> -                     blks = 0;
>> -                     addr += ATA_SECT_SIZE * blks;
>> -             }
>> -     } while (blks != 0);
>> -
>> -     return blks;
>> -}
>> -
>> -static u32 ata_low_level_rw_lba28(fsl_sata_t *sata, u32 blknr, u32 blkcnt,
>> -                               const void *buffer, int is_write)
>> -{
>> -     u32 start, blks;
>> -     u8 *addr;
>> -     int max_blks;
>> -
>> -     start = blknr;
>> -     blks = blkcnt;
>> -     addr = (u8 *)buffer;
>> -
>> -     max_blks = ATA_MAX_SECTORS;
>> -     do {
>> -             if (blks > max_blks) {
>> -                     fsl_sata_rw_cmd(sata, start, max_blks, addr,
>is_write);
>> -                     start += max_blks;
>> -                     blks -= max_blks;
>> -                     addr += ATA_SECT_SIZE * max_blks;
>> -             } else {
>> -                     fsl_sata_rw_cmd(sata, start, blks, addr, is_write);
>> -                     start += blks;
>> -                     blks = 0;
>> -                     addr += ATA_SECT_SIZE * blks;
>> -             }
>> -     } while (blks != 0);
>> -
>> -     return blks;
>> -}
>> -
>> -/*
>> - * SATA interface between low level driver and command layer
>> - */
>> -static int sata_read(fsl_sata_t *sata, ulong blknr, lbaint_t blkcnt,
>> -                  void *buffer)
>> -{
>> -     u32 rc;
>> -
>> -     if (sata->lba48)
>> -             rc = ata_low_level_rw_lba48(sata, blknr, blkcnt, buffer,
>> -                                         READ_CMD);
>> -     else
>> -             rc = ata_low_level_rw_lba28(sata, blknr, blkcnt, buffer,
>> -                                         READ_CMD);
>> -     return rc;
>> -}
>> -
>> -static int sata_write(fsl_sata_t *sata, ulong blknr, lbaint_t blkcnt,
>> -                   const void *buffer)
>> -{
>> -     u32 rc;
>> -
>> -     if (sata->lba48) {
>> -             rc = ata_low_level_rw_lba48(sata, blknr, blkcnt, buffer,
>> -                                         WRITE_CMD);
>> -             if (sata->wcache && sata->flush_ext)
>> -                     fsl_sata_flush_cache_ext(sata);
>> -     } else {
>> -             rc = ata_low_level_rw_lba28(sata, blknr, blkcnt, buffer,
>> -                                         WRITE_CMD);
>> -             if (sata->wcache && sata->flush)
>> -                     fsl_sata_flush_cache(sata);
>> -     }
>> -
>> -     return rc;
>> -}
>> -
>> -int sata_getinfo(fsl_sata_t *sata, u16 *id) -{
>> -     /* if no detected link */
>> -     if (!sata->link)
>> -             return -EINVAL;
>> -
>> -#ifdef CONFIG_LBA48
>> -     /* Check if support LBA48 */
>> -     if (ata_id_has_lba48(id)) {
>> -             sata->lba48 = 1;
>> -             debug("Device support LBA48\n\r");
>> -     } else {
>> -             debug("Device supports LBA28\n\r");
>> -     }
>> -#endif
>> -
>> -     /* Get the NCQ queue depth from device */
>> -     sata->queue_depth = ata_id_queue_depth(id);
>> -
>> -     /* Get the xfer mode from device */
>> -     fsl_sata_xfer_mode(sata, id);
>> -
>> -     /* Get the write cache status from device */
>> -     fsl_sata_init_wcache(sata, id);
>> -
>> -     /* Set the xfer mode to highest speed */
>> -     fsl_sata_set_features(sata);
>> -
>> -     return 0;
>> -}
>> -
>> -static int fsl_scsi_exec(fsl_sata_t *sata, struct scsi_cmd *pccb,
>> -                      bool is_write)
>> -{
>> -     int ret;
>> -     u32 temp;
>> -     u16 blocks = 0;
>> -     lbaint_t start = 0;
>> -     u8 *buffer = pccb->pdata;
>> -
>> -     /* Retrieve the base LBA number from the ccb structure. */
>> -     if (pccb->cmd[0] == SCSI_READ16) {
>> -             memcpy(&start, pccb->cmd + 2, 8);
>> -             start = be64_to_cpu(start);
>> -     } else {
>> -             memcpy(&temp, pccb->cmd + 2, 4);
>> -             start = be32_to_cpu(temp);
>> -     }
>> -
>> -     if (pccb->cmd[0] == SCSI_READ16)
>> -             blocks = (((u16)pccb->cmd[13]) << 8) |
>((u16)pccb->cmd[14]);
>> -     else
>> -             blocks = (((u16)pccb->cmd[7]) << 8) | ((u16)pccb->cmd[8]);
>> -
>> -     debug("scsi_ahci: %s %u blocks starting from lba 0x" LBAFU "\n",
>> -           is_write ?  "write" : "read", blocks, start);
>> -
>> -     if (is_write)
>> -             ret = sata_write(sata, start, blocks, buffer);
>> -     else
>> -             ret = sata_read(sata, start, blocks, buffer);
>> -
>> -     return ret;
>> -}
>> -
>> -static char *fsl_ata_id_strcpy(u16 *target, u16 *src, int len) -{
>> -     int i;
>> -
>> -     for (i = 0; i < len / 2; i++)
>> -             target[i] = src[i];
>> -
>> -     return (char *)target;
>> -}
>> -
>> -static int fsl_ata_scsiop_inquiry(struct ahci_uc_priv *uc_priv,
>> -                               struct scsi_cmd *pccb,
>> -                               fsl_sata_t *sata)
>> -{
>> -     u8 port;
>> -     u16 *idbuf;
>> -
>> -     ALLOC_CACHE_ALIGN_BUFFER(u16, tmpid, ATA_ID_WORDS);
>> -
>> -     /* Clean ccb data buffer */
>> -     memset(pccb->pdata, 0, pccb->datalen);
>> -
>> -     if (pccb->datalen <= 35)
>> -             return 0;
>> -
>> -     /* Read id from sata */
>> -     port = pccb->target;
>> -
>> -     fsl_sata_identify(sata, (u16 *)tmpid);
>> -
>> -     if (!uc_priv->ataid[port]) {
>> -             uc_priv->ataid[port] = malloc(ATA_ID_WORDS * 2);
>> -             if (!uc_priv->ataid[port]) {
>> -                     printf("%s: No memory for ataid[port]\n",
>__func__);
>> -                     return -ENOMEM;
>> -             }
>> -     }
>> -
>> -     idbuf = uc_priv->ataid[port];
>> -
>> -     memcpy(idbuf, tmpid, ATA_ID_WORDS * 2);
>> -
>> -     memcpy(&pccb->pdata[8], "ATA     ", 8);
>> -     fsl_ata_id_strcpy((u16 *)&pccb->pdata[16], &idbuf[ATA_ID_PROD],
>16);
>> -     fsl_ata_id_strcpy((u16 *)&pccb->pdata[32], &idbuf[ATA_ID_FW_REV],
>4);
>> -
>> -     sata_getinfo(sata, (u16 *)idbuf);
>> -#ifdef DEBUG
>> -     ata_dump_id(idbuf);
>> -#endif
>> -     return 0;
>> -}
>> -
>> -/*
>> - * SCSI READ CAPACITY10 command operation.
>> - */
>> -static int fsl_ata_scsiop_read_capacity10(struct ahci_uc_priv *uc_priv,
>> -                                       struct scsi_cmd *pccb)
>> -{
>> -     u32 cap;
>> -     u64 cap64;
>> -     u32 block_size;
>> -
>> -     if (!uc_priv->ataid[pccb->target]) {
>> -             printf("scsi_ahci: SCSI READ CAPACITY10 command
>failure.");
>> -             printf("\tNo ATA info!\n");
>> -             printf("\tPlease run SCSI command INQUIRY first!\n");
>> -             return -EPERM;
>> -     }
>> -
>> -     cap64 = ata_id_n_sectors(uc_priv->ataid[pccb->target]);
>> -     if (cap64 > 0x100000000ULL)
>> -             cap64 = 0xffffffff;
>> -
>> -     cap = cpu_to_be32(cap64);
>> -     memcpy(pccb->pdata, &cap, sizeof(cap));
>> -
>> -     block_size = cpu_to_be32((u32)512);
>> -     memcpy(&pccb->pdata[4], &block_size, 4);
>> -
>> -     return 0;
>> -}
>> -
>> -/*
>> - * SCSI READ CAPACITY16 command operation.
>> - */
>> -static int fsl_ata_scsiop_read_capacity16(struct ahci_uc_priv *uc_priv,
>> -                                       struct scsi_cmd *pccb)
>> -{
>> -     u64 cap;
>> -     u64 block_size;
>> -
>> -     if (!uc_priv->ataid[pccb->target]) {
>> -             printf("scsi_ahci: SCSI READ CAPACITY16 command
>failure.");
>> -             printf("\tNo ATA info!\n");
>> -             printf("\tPlease run SCSI command INQUIRY first!\n");
>> -             return -EPERM;
>> -     }
>> -
>> -     cap = ata_id_n_sectors(uc_priv->ataid[pccb->target]);
>> -     cap = cpu_to_be64(cap);
>> -     memcpy(pccb->pdata, &cap, sizeof(cap));
>> -
>> -     block_size = cpu_to_be64((u64)512);
>> -     memcpy(&pccb->pdata[8], &block_size, 8);
>> -
>> -     return 0;
>> -}
>> -
>> -/*
>> - * SCSI TEST UNIT READY command operation.
>> - */
>> -static int fsl_ata_scsiop_test_unit_ready(struct ahci_uc_priv *uc_priv,
>> -                                       struct scsi_cmd *pccb)
>> -{
>> -     return (uc_priv->ataid[pccb->target]) ? 0 : -EPERM;
>> -}
>> -
>> -static int fsl_ahci_scsi_exec(struct udevice *dev, struct scsi_cmd
>> *pccb) -{
>> -     struct ahci_uc_priv *uc_priv = dev_get_uclass_priv(dev->parent);
>> -     struct fsl_ahci_priv *priv = dev_get_priv(dev->parent);
>> -     fsl_sata_t *sata = priv->fsl_sata;
>> -     int ret;
>> -
>> -     switch (pccb->cmd[0]) {
>> -     case SCSI_READ16:
>> -     case SCSI_READ10:
>> -             ret = fsl_scsi_exec(sata, pccb, 0);
>> -             break;
>> -     case SCSI_WRITE10:
>> -             ret = fsl_scsi_exec(sata, pccb, 1);
>> -             break;
>> -     case SCSI_RD_CAPAC10:
>> -             ret = fsl_ata_scsiop_read_capacity10(uc_priv, pccb);
>> -             break;
>> -     case SCSI_RD_CAPAC16:
>> -             ret = fsl_ata_scsiop_read_capacity16(uc_priv, pccb);
>> -             break;
>> -     case SCSI_TST_U_RDY:
>> -             ret = fsl_ata_scsiop_test_unit_ready(uc_priv, pccb);
>> -             break;
>> -     case SCSI_INQUIRY:
>> -             ret = fsl_ata_scsiop_inquiry(uc_priv, pccb, sata);
>> -             break;
>> -     default:
>> -             printf("Unsupport SCSI command 0x%02x\n",
>pccb->cmd[0]);
>> -             return -ENOTSUPP;
>> -     }
>> -
>> -     if (ret) {
>> -             debug("SCSI command 0x%02x ret errno %d\n",
>pccb->cmd[0], ret);
>> -             return ret;
>> -     }
>> -
>> -     return 0;
>> -}
>> -
>> -static int fsl_ahci_probe(struct udevice *dev) -{
>> -     struct fsl_ahci_priv *priv = dev_get_priv(dev);
>> -     struct udevice *child_dev;
>> -     struct scsi_platdata *uc_plat;
>> -
>> -     device_find_first_child(dev, &child_dev);
>> -     if (!child_dev)
>> -             return -ENODEV;
>> -     uc_plat = dev_get_uclass_platdata(child_dev);
>> -     uc_plat->base = priv->base;
>> -     uc_plat->max_lun = 1;
>> -     uc_plat->max_id = 1;
>> -
>> -     return init_sata(priv);
>> -}
>> -
>> -struct scsi_ops fsl_scsi_ops = {
>> -     .exec           = fsl_ahci_scsi_exec,
>> -};
>> -
>> -static const struct udevice_id fsl_ahci_ids[] = {
>> -     { .compatible = "fsl,pq-sata-v2" },
>> -     { }
>> -};
>> -
>> -U_BOOT_DRIVER(fsl_ahci_scsi) = {
>> -     .name           = "fsl_ahci_scsi",
>> -     .id             = UCLASS_SCSI,
>> -     .ops            = &fsl_scsi_ops,
>> -};
>> -
>> -U_BOOT_DRIVER(fsl_ahci) = {
>> -     .name   = "fsl_ahci",
>> -     .id     = UCLASS_AHCI,
>> -     .of_match = fsl_ahci_ids,
>> -     .bind   = fsl_ahci_bind,
>> -     .ofdata_to_platdata = fsl_ahci_ofdata_to_platdata,
>> -     .probe  = fsl_ahci_probe,
>> -     .priv_auto_alloc_size = sizeof(struct fsl_ahci_priv),
>> -};
>> diff --git a/drivers/ata/fsl_sata.h b/drivers/ata/fsl_sata.h index
>> 5b9daa79e0..882803c8cd 100644
>> --- a/drivers/ata/fsl_sata.h
>> +++ b/drivers/ata/fsl_sata.h
>> @@ -313,7 +313,6 @@ typedef struct fsl_sata {
>>       int             wcache;
>>       int             flush;
>>       int             flush_ext;
>> -     u32             dma_flag;
>>   } fsl_sata_t;
>>
>>   #define READ_CMD    0
>>
>
>Viele Grüße,
>Stefan
>
>--
>DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
>HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
>Phone: (+49)-8142-66989-51 Fax: (+49)-8142-66989-80 Email: sr at denx.de


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