[U-Boot] [EXT] Re: [PATCH 2/5] Revert "ata: fsl_ahci: Add sata DM support for Freescale powerpc socs"
Peng Ma
peng.ma at nxp.com
Thu Nov 28 02:25:10 UTC 2019
>-----Original Message-----
>From: Stefan Roese <sr at denx.de>
>Sent: 2019年11月27日 18:31
>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: [PATCH 2/5] Revert "ata: fsl_ahci: Add sata DM support for
>Freescale powerpc socs"
>
>Caution: EXT Email
>
>Hi Peng,
>
>On 27.11.19 11:02, Peng Ma wrote:
>> This reverts commit 1ee494291880fd51ef0c5f7342e072bdb069d7ff.
>
>I'm missing an explanation for this revert (or even better for this whole
>patch-set). Why are you doing this? Is the new DM driver causing problems?
>
[Peng Ma] The new driver work well but that's not the best way to do it. I make some changes
in fsl_sata.c, please see /drivers/ata/fsl_sata.c.
Thanks,
Peng
>Thanks,
>Stefan
>
>> Signed-off-by: Peng Ma <peng.ma at nxp.com>
>> ---
>> 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(®->cqr));
>> - printf("CAR: %08x\n\r", in_le32(®->car));
>> - printf("CCR: %08x\n\r", in_le32(®->ccr));
>> - printf("CER: %08x\n\r", in_le32(®->cer));
>> - printf("CQR: %08x\n\r", in_le32(®->cqr));
>> - printf("DER: %08x\n\r", in_le32(®->der));
>> - printf("CHBA: %08x\n\r", in_le32(®->chba));
>> - printf("HStatus: %08x\n\r", in_le32(®->hstatus));
>> - printf("HControl: %08x\n\r", in_le32(®->hcontrol));
>> - printf("CQPMP: %08x\n\r", in_le32(®->cqpmp));
>> - printf("SIG: %08x\n\r", in_le32(®->sig));
>> - printf("ICC: %08x\n\r", in_le32(®->icc));
>> - printf("SStatus: %08x\n\r", in_le32(®->sstatus));
>> - printf("SError: %08x\n\r", in_le32(®->serror));
>> - printf("SControl: %08x\n\r", in_le32(®->scontrol));
>> - printf("SNotification: %08x\n\r", in_le32(®->snotification));
>> - printf("TransCfg: %08x\n\r", in_le32(®->transcfg));
>> - printf("TransStatus: %08x\n\r", in_le32(®->transstatus));
>> - printf("LinkCfg: %08x\n\r", in_le32(®->linkcfg));
>> - printf("LinkCfg1: %08x\n\r", in_le32(®->linkcfg1));
>> - printf("LinkCfg2: %08x\n\r", in_le32(®->linkcfg2));
>> - printf("LinkStatus: %08x\n\r", in_le32(®->linkstatus));
>> - printf("LinkStatus1: %08x\n\r", in_le32(®->linkstatus1));
>> - printf("PhyCtrlCfg: %08x\n\r", in_le32(®->phyctrlcfg));
>> - printf("SYSPR: %08x\n\r", in_be32(®->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(®->hcontrol);
>> - val32 &= ~HCONTROL_ONOFF;
>> - val32 |= HCONTROL_FORCE_OFFLINE;
>> - out_le32(®->hcontrol, val32);
>> -
>> - /* Wait the controller offline */
>> - ata_wait_register(®->hstatus, HSTATUS_ONOFF, 0, 1000);
>> -
>> - /* Set the command header base address to CHBA register to tell
>DMA */
>> - out_le32(®->chba, (u32)cmd_hdr & ~0x3);
>> -
>> - /* Snoop for the command header */
>> - val32 = in_le32(®->hcontrol);
>> - val32 |= HCONTROL_HDR_SNOOP;
>> - out_le32(®->hcontrol, val32);
>> -
>> - /* Disable all of interrupts */
>> - val32 = in_le32(®->hcontrol);
>> - val32 &= ~HCONTROL_INT_EN_ALL;
>> - out_le32(®->hcontrol, val32);
>> -
>> - /* Clear all of interrupts */
>> - val32 = in_le32(®->hstatus);
>> - out_le32(®->hstatus, val32);
>> -
>> - /* Set the ICC, no interrupt coalescing */
>> - out_le32(®->icc, 0x01000000);
>> -
>> - /* No PM attatched, the SATA device direct connect */
>> - out_le32(®->cqpmp, 0);
>> -
>> - /* Clear SError register */
>> - val32 = in_le32(®->serror);
>> - out_le32(®->serror, val32);
>> -
>> - /* Clear CER register */
>> - val32 = in_le32(®->cer);
>> - out_le32(®->cer, val32);
>> -
>> - /* Clear DER register */
>> - val32 = in_le32(®->der);
>> - out_le32(®->der, val32);
>> -
>> - /* No device detection or initialization action requested */
>> - out_le32(®->scontrol, 0x00000300);
>> -
>> - /* Configure the transport layer, default value */
>> - out_le32(®->transcfg, 0x08000016);
>> -
>> - /* Configure the link layer, default value */
>> - out_le32(®->linkcfg, 0x0000ff34);
>> -
>> - /* Bring the controller online */
>> - val32 = in_le32(®->hcontrol);
>> - val32 |= HCONTROL_ONOFF;
>> - out_le32(®->hcontrol, val32);
>> -
>> - mdelay(100);
>> -
>> - /* print sata device name */
>> - printf("%s ", sata->name);
>> -
>> - /* Wait PHY RDY signal changed for 500ms */
>> - ata_wait_register(®->hstatus, HSTATUS_PHY_RDY,
>> - HSTATUS_PHY_RDY, 500);
>> -
>> - /* Check PHYRDY */
>> - val32 = in_le32(®->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(®->hstatus, HSTATUS_SIGNATURE,
>> - HSTATUS_SIGNATURE, 10000);
>> -
>> - if (val32 & HSTATUS_SIGNATURE) {
>> - sig = in_le32(®->sig);
>> - debug("Signature updated, the sig =%08x\n\r", sig);
>> - sata->ata_device_type = ata_dev_classify(sig);
>> - }
>> -
>> - /* Check the speed */
>> - val32 = in_le32(®->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(®->cqpmp, val32);
>> -
>> - /* Wait no active */
>> - if (ata_wait_register(®->car, (1 << tag), 0, 10000))
>> - printf("Wait no active time out\n\r");
>> -
>> - /* Issue command */
>> - if (!(in_le32(®->cqr) & (1 << tag))) {
>> - val32 = 1 << tag;
>> - out_le32(®->cqr, val32);
>> - }
>> -
>> - /* Wait command completed for 10s */
>> - if (ata_wait_register(®->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(®->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(®->der);
>> - out_le32(®->cer, val32);
>> - out_le32(®->der, der);
>> - }
>> -
>> - /* Clear complete flags */
>> - val32 = in_le32(®->ccr);
>> - out_le32(®->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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