+++ /dev/null
-/*
- * sata_dwc.c
- *
- * Synopsys DesignWare Cores (DWC) SATA host driver
- *
- * Author: Mark Miesfeld <mmiesfeld@amcc.com>
- *
- * Ported from 2.6.19.2 to 2.6.25/26 by Stefan Roese <sr@denx.de>
- * Copyright 2008 DENX Software Engineering
- *
- * Based on versions provided by AMCC and Synopsys which are:
- * Copyright 2006 Applied Micro Circuits Corporation
- * COPYRIGHT (C) 2005 SYNOPSYS, INC. ALL RIGHTS RESERVED
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-/*
- * SATA support based on the chip canyonlands.
- *
- * 04-17-2009
- * The local version of this driver for the canyonlands board
- * does not use interrupts but polls the chip instead.
- */
-
-#include <common.h>
-#include <command.h>
-#include <pci.h>
-#include <asm/processor.h>
-#include <linux/dma-direction.h>
-#include <linux/errno.h>
-#include <asm/io.h>
-#include <malloc.h>
-#include <ata.h>
-#include <sata.h>
-#include <linux/ctype.h>
-
-#include "sata_dwc.h"
-
-#define DMA_NUM_CHANS 1
-#define DMA_NUM_CHAN_REGS 8
-
-#define AHB_DMA_BRST_DFLT 16
-
-struct dmareg {
- u32 low;
- u32 high;
-};
-
-struct dma_chan_regs {
- struct dmareg sar;
- struct dmareg dar;
- struct dmareg llp;
- struct dmareg ctl;
- struct dmareg sstat;
- struct dmareg dstat;
- struct dmareg sstatar;
- struct dmareg dstatar;
- struct dmareg cfg;
- struct dmareg sgr;
- struct dmareg dsr;
-};
-
-struct dma_interrupt_regs {
- struct dmareg tfr;
- struct dmareg block;
- struct dmareg srctran;
- struct dmareg dsttran;
- struct dmareg error;
-};
-
-struct ahb_dma_regs {
- struct dma_chan_regs chan_regs[DMA_NUM_CHAN_REGS];
- struct dma_interrupt_regs interrupt_raw;
- struct dma_interrupt_regs interrupt_status;
- struct dma_interrupt_regs interrupt_mask;
- struct dma_interrupt_regs interrupt_clear;
- struct dmareg statusInt;
- struct dmareg rq_srcreg;
- struct dmareg rq_dstreg;
- struct dmareg rq_sgl_srcreg;
- struct dmareg rq_sgl_dstreg;
- struct dmareg rq_lst_srcreg;
- struct dmareg rq_lst_dstreg;
- struct dmareg dma_cfg;
- struct dmareg dma_chan_en;
- struct dmareg dma_id;
- struct dmareg dma_test;
- struct dmareg res1;
- struct dmareg res2;
- /* DMA Comp Params
- * Param 6 = dma_param[0], Param 5 = dma_param[1],
- * Param 4 = dma_param[2] ...
- */
- struct dmareg dma_params[6];
-};
-
-#define DMA_EN 0x00000001
-#define DMA_DI 0x00000000
-#define DMA_CHANNEL(ch) (0x00000001 << (ch))
-#define DMA_ENABLE_CHAN(ch) ((0x00000001 << (ch)) | \
- ((0x000000001 << (ch)) << 8))
-#define DMA_DISABLE_CHAN(ch) (0x00000000 | \
- ((0x000000001 << (ch)) << 8))
-
-#define SATA_DWC_MAX_PORTS 1
-#define SATA_DWC_SCR_OFFSET 0x24
-#define SATA_DWC_REG_OFFSET 0x64
-
-struct sata_dwc_regs {
- u32 fptagr;
- u32 fpbor;
- u32 fptcr;
- u32 dmacr;
- u32 dbtsr;
- u32 intpr;
- u32 intmr;
- u32 errmr;
- u32 llcr;
- u32 phycr;
- u32 physr;
- u32 rxbistpd;
- u32 rxbistpd1;
- u32 rxbistpd2;
- u32 txbistpd;
- u32 txbistpd1;
- u32 txbistpd2;
- u32 bistcr;
- u32 bistfctr;
- u32 bistsr;
- u32 bistdecr;
- u32 res[15];
- u32 testr;
- u32 versionr;
- u32 idr;
- u32 unimpl[192];
- u32 dmadr[256];
-};
-
-#define SATA_DWC_TXFIFO_DEPTH 0x01FF
-#define SATA_DWC_RXFIFO_DEPTH 0x01FF
-
-#define SATA_DWC_DBTSR_MWR(size) ((size / 4) & SATA_DWC_TXFIFO_DEPTH)
-#define SATA_DWC_DBTSR_MRD(size) (((size / 4) & \
- SATA_DWC_RXFIFO_DEPTH) << 16)
-#define SATA_DWC_INTPR_DMAT 0x00000001
-#define SATA_DWC_INTPR_NEWFP 0x00000002
-#define SATA_DWC_INTPR_PMABRT 0x00000004
-#define SATA_DWC_INTPR_ERR 0x00000008
-#define SATA_DWC_INTPR_NEWBIST 0x00000010
-#define SATA_DWC_INTPR_IPF 0x10000000
-#define SATA_DWC_INTMR_DMATM 0x00000001
-#define SATA_DWC_INTMR_NEWFPM 0x00000002
-#define SATA_DWC_INTMR_PMABRTM 0x00000004
-#define SATA_DWC_INTMR_ERRM 0x00000008
-#define SATA_DWC_INTMR_NEWBISTM 0x00000010
-
-#define SATA_DWC_DMACR_TMOD_TXCHEN 0x00000004
-#define SATA_DWC_DMACR_TXRXCH_CLEAR SATA_DWC_DMACR_TMOD_TXCHEN
-
-#define SATA_DWC_QCMD_MAX 32
-
-#define SATA_DWC_SERROR_ERR_BITS 0x0FFF0F03
-
-#define HSDEVP_FROM_AP(ap) (struct sata_dwc_device_port*) \
- (ap)->private_data
-
-struct sata_dwc_device {
- struct device *dev;
- struct ata_probe_ent *pe;
- struct ata_host *host;
- u8 *reg_base;
- struct sata_dwc_regs *sata_dwc_regs;
- int irq_dma;
-};
-
-struct sata_dwc_device_port {
- struct sata_dwc_device *hsdev;
- int cmd_issued[SATA_DWC_QCMD_MAX];
- u32 dma_chan[SATA_DWC_QCMD_MAX];
- int dma_pending[SATA_DWC_QCMD_MAX];
-};
-
-enum {
- SATA_DWC_CMD_ISSUED_NOT = 0,
- SATA_DWC_CMD_ISSUED_PEND = 1,
- SATA_DWC_CMD_ISSUED_EXEC = 2,
- SATA_DWC_CMD_ISSUED_NODATA = 3,
-
- SATA_DWC_DMA_PENDING_NONE = 0,
- SATA_DWC_DMA_PENDING_TX = 1,
- SATA_DWC_DMA_PENDING_RX = 2,
-};
-
-#define msleep(a) udelay(a * 1000)
-#define ssleep(a) msleep(a * 1000)
-
-static int ata_probe_timeout = (ATA_TMOUT_INTERNAL / 100);
-
-enum sata_dev_state {
- SATA_INIT = 0,
- SATA_READY = 1,
- SATA_NODEVICE = 2,
- SATA_ERROR = 3,
-};
-enum sata_dev_state dev_state = SATA_INIT;
-
-static struct ahb_dma_regs *sata_dma_regs = 0;
-static struct ata_host *phost;
-static struct ata_port ap;
-static struct ata_port *pap = ≈
-static struct ata_device ata_device;
-static struct sata_dwc_device_port dwc_devp;
-
-static void *scr_addr_sstatus;
-static u32 temp_n_block = 0;
-
-static unsigned ata_exec_internal(struct ata_device *dev,
- struct ata_taskfile *tf, const u8 *cdb,
- int dma_dir, unsigned int buflen,
- unsigned long timeout);
-static unsigned int ata_dev_set_feature(struct ata_device *dev,
- u8 enable,u8 feature);
-static unsigned int ata_dev_init_params(struct ata_device *dev,
- u16 heads, u16 sectors);
-static u8 ata_irq_on(struct ata_port *ap);
-static struct ata_queued_cmd *__ata_qc_from_tag(struct ata_port *ap,
- unsigned int tag);
-static int ata_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc,
- u8 status, int in_wq);
-static void ata_tf_to_host(struct ata_port *ap,
- const struct ata_taskfile *tf);
-static void ata_exec_command(struct ata_port *ap,
- const struct ata_taskfile *tf);
-static unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc);
-static u8 ata_check_altstatus(struct ata_port *ap);
-static u8 ata_check_status(struct ata_port *ap);
-static void ata_dev_select(struct ata_port *ap, unsigned int device,
- unsigned int wait, unsigned int can_sleep);
-static void ata_qc_issue(struct ata_queued_cmd *qc);
-static void ata_tf_load(struct ata_port *ap,
- const struct ata_taskfile *tf);
-static int ata_dev_read_sectors(unsigned char* pdata,
- unsigned long datalen, u32 block, u32 n_block);
-static int ata_dev_write_sectors(unsigned char* pdata,
- unsigned long datalen , u32 block, u32 n_block);
-static void ata_std_dev_select(struct ata_port *ap, unsigned int device);
-static void ata_qc_complete(struct ata_queued_cmd *qc);
-static void __ata_qc_complete(struct ata_queued_cmd *qc);
-static void fill_result_tf(struct ata_queued_cmd *qc);
-static void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf);
-static void ata_mmio_data_xfer(struct ata_device *dev,
- unsigned char *buf,
- unsigned int buflen,int do_write);
-static void ata_pio_task(struct ata_port *arg_ap);
-static void __ata_port_freeze(struct ata_port *ap);
-static int ata_port_freeze(struct ata_port *ap);
-static void ata_qc_free(struct ata_queued_cmd *qc);
-static void ata_pio_sectors(struct ata_queued_cmd *qc);
-static void ata_pio_sector(struct ata_queued_cmd *qc);
-static void ata_pio_queue_task(struct ata_port *ap,
- void *data,unsigned long delay);
-static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq);
-static int sata_dwc_softreset(struct ata_port *ap);
-static int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
- unsigned int flags, u16 *id);
-static int check_sata_dev_state(void);
-
-static const struct ata_port_info sata_dwc_port_info[] = {
- {
- .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
- ATA_FLAG_MMIO | ATA_FLAG_PIO_POLLING |
- ATA_FLAG_SRST | ATA_FLAG_NCQ,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
- .udma_mask = 0x7f,
- },
-};
-
-int init_sata(int dev)
-{
- struct sata_dwc_device hsdev;
- struct ata_host host;
- struct ata_port_info pi = sata_dwc_port_info[0];
- struct ata_link *link;
- struct sata_dwc_device_port hsdevp = dwc_devp;
- u8 *base = 0;
- u8 *sata_dma_regs_addr = 0;
- u8 status;
- unsigned long base_addr = 0;
- int chan = 0;
- int rc;
- int i;
-
- phost = &host;
-
- base = (u8*)SATA_BASE_ADDR;
-
- hsdev.sata_dwc_regs = (void *__iomem)(base + SATA_DWC_REG_OFFSET);
-
- host.n_ports = SATA_DWC_MAX_PORTS;
-
- for (i = 0; i < SATA_DWC_MAX_PORTS; i++) {
- ap.pflags |= ATA_PFLAG_INITIALIZING;
- ap.flags = ATA_FLAG_DISABLED;
- ap.print_id = -1;
- ap.ctl = ATA_DEVCTL_OBS;
- ap.host = &host;
- ap.last_ctl = 0xFF;
-
- link = &ap.link;
- link->ap = ≈
- link->pmp = 0;
- link->active_tag = ATA_TAG_POISON;
- link->hw_sata_spd_limit = 0;
-
- ap.port_no = i;
- host.ports[i] = ≈
- }
-
- ap.pio_mask = pi.pio_mask;
- ap.mwdma_mask = pi.mwdma_mask;
- ap.udma_mask = pi.udma_mask;
- ap.flags |= pi.flags;
- ap.link.flags |= pi.link_flags;
-
- host.ports[0]->ioaddr.cmd_addr = base;
- host.ports[0]->ioaddr.scr_addr = base + SATA_DWC_SCR_OFFSET;
- scr_addr_sstatus = base + SATA_DWC_SCR_OFFSET;
-
- base_addr = (unsigned long)base;
-
- host.ports[0]->ioaddr.cmd_addr = (void *)base_addr + 0x00;
- host.ports[0]->ioaddr.data_addr = (void *)base_addr + 0x00;
-
- host.ports[0]->ioaddr.error_addr = (void *)base_addr + 0x04;
- host.ports[0]->ioaddr.feature_addr = (void *)base_addr + 0x04;
-
- host.ports[0]->ioaddr.nsect_addr = (void *)base_addr + 0x08;
-
- host.ports[0]->ioaddr.lbal_addr = (void *)base_addr + 0x0c;
- host.ports[0]->ioaddr.lbam_addr = (void *)base_addr + 0x10;
- host.ports[0]->ioaddr.lbah_addr = (void *)base_addr + 0x14;
-
- host.ports[0]->ioaddr.device_addr = (void *)base_addr + 0x18;
- host.ports[0]->ioaddr.command_addr = (void *)base_addr + 0x1c;
- host.ports[0]->ioaddr.status_addr = (void *)base_addr + 0x1c;
-
- host.ports[0]->ioaddr.altstatus_addr = (void *)base_addr + 0x20;
- host.ports[0]->ioaddr.ctl_addr = (void *)base_addr + 0x20;
-
- sata_dma_regs_addr = (u8*)SATA_DMA_REG_ADDR;
- sata_dma_regs = (void *__iomem)sata_dma_regs_addr;
-
- status = ata_check_altstatus(&ap);
-
- if (status == 0x7f) {
- printf("Hard Disk not found.\n");
- dev_state = SATA_NODEVICE;
- rc = false;
- return rc;
- }
-
- printf("Waiting for device...");
- i = 0;
- while (1) {
- udelay(10000);
-
- status = ata_check_altstatus(&ap);
-
- if ((status & ATA_BUSY) == 0) {
- printf("\n");
- break;
- }
-
- i++;
- if (i > (ATA_RESET_TIME * 100)) {
- printf("** TimeOUT **\n");
-
- dev_state = SATA_NODEVICE;
- rc = false;
- return rc;
- }
- if ((i >= 100) && ((i % 100) == 0))
- printf(".");
- }
-
- rc = sata_dwc_softreset(&ap);
-
- if (rc) {
- printf("sata_dwc : error. soft reset failed\n");
- return rc;
- }
-
- for (chan = 0; chan < DMA_NUM_CHANS; chan++) {
- out_le32(&(sata_dma_regs->interrupt_mask.error.low),
- DMA_DISABLE_CHAN(chan));
-
- out_le32(&(sata_dma_regs->interrupt_mask.tfr.low),
- DMA_DISABLE_CHAN(chan));
- }
-
- out_le32(&(sata_dma_regs->dma_cfg.low), DMA_DI);
-
- out_le32(&hsdev.sata_dwc_regs->intmr,
- SATA_DWC_INTMR_ERRM |
- SATA_DWC_INTMR_PMABRTM);
-
- /* Unmask the error bits that should trigger
- * an error interrupt by setting the error mask register.
- */
- out_le32(&hsdev.sata_dwc_regs->errmr, SATA_DWC_SERROR_ERR_BITS);
-
- hsdev.host = ap.host;
- memset(&hsdevp, 0, sizeof(hsdevp));
- hsdevp.hsdev = &hsdev;
-
- for (i = 0; i < SATA_DWC_QCMD_MAX; i++)
- hsdevp.cmd_issued[i] = SATA_DWC_CMD_ISSUED_NOT;
-
- out_le32((void __iomem *)scr_addr_sstatus + 4,
- in_le32((void __iomem *)scr_addr_sstatus + 4));
-
- rc = 0;
- return rc;
-}
-
-int reset_sata(int dev)
-{
- return 0;
-}
-
-static u8 ata_check_altstatus(struct ata_port *ap)
-{
- u8 val = 0;
- val = readb(ap->ioaddr.altstatus_addr);
- return val;
-}
-
-static int sata_dwc_softreset(struct ata_port *ap)
-{
- u8 nsect,lbal = 0;
- u8 tmp = 0;
- struct ata_ioports *ioaddr = &ap->ioaddr;
-
- in_le32((void *)ap->ioaddr.scr_addr + (SCR_ERROR * 4));
-
- writeb(0x55, ioaddr->nsect_addr);
- writeb(0xaa, ioaddr->lbal_addr);
- writeb(0xaa, ioaddr->nsect_addr);
- writeb(0x55, ioaddr->lbal_addr);
- writeb(0x55, ioaddr->nsect_addr);
- writeb(0xaa, ioaddr->lbal_addr);
-
- nsect = readb(ioaddr->nsect_addr);
- lbal = readb(ioaddr->lbal_addr);
-
- if ((nsect == 0x55) && (lbal == 0xaa)) {
- printf("Device found\n");
- } else {
- printf("No device found\n");
- dev_state = SATA_NODEVICE;
- return false;
- }
-
- tmp = ATA_DEVICE_OBS;
- writeb(tmp, ioaddr->device_addr);
- writeb(ap->ctl, ioaddr->ctl_addr);
-
- udelay(200);
-
- writeb(ap->ctl | ATA_SRST, ioaddr->ctl_addr);
-
- udelay(200);
- writeb(ap->ctl, ioaddr->ctl_addr);
-
- msleep(150);
- ata_check_status(ap);
-
- msleep(50);
- ata_check_status(ap);
-
- while (1) {
- u8 status = ata_check_status(ap);
-
- if (!(status & ATA_BUSY))
- break;
-
- printf("Hard Disk status is BUSY.\n");
- msleep(50);
- }
-
- tmp = ATA_DEVICE_OBS;
- writeb(tmp, ioaddr->device_addr);
-
- nsect = readb(ioaddr->nsect_addr);
- lbal = readb(ioaddr->lbal_addr);
-
- return 0;
-}
-
-static u8 ata_check_status(struct ata_port *ap)
-{
- u8 val = 0;
- val = readb(ap->ioaddr.status_addr);
- return val;
-}
-
-static int ata_id_has_hipm(const u16 *id)
-{
- u16 val = id[76];
-
- if (val == 0 || val == 0xffff)
- return -1;
-
- return val & (1 << 9);
-}
-
-static int ata_id_has_dipm(const u16 *id)
-{
- u16 val = id[78];
-
- if (val == 0 || val == 0xffff)
- return -1;
-
- return val & (1 << 3);
-}
-
-int scan_sata(int dev)
-{
- int i;
- int rc;
- u8 status;
- const u16 *id;
- struct ata_device *ata_dev = &ata_device;
- unsigned long pio_mask, mwdma_mask;
- char revbuf[7];
- u16 iobuf[ATA_SECTOR_WORDS];
-
- memset(iobuf, 0, sizeof(iobuf));
-
- if (dev_state == SATA_NODEVICE)
- return 1;
-
- printf("Waiting for device...");
- i = 0;
- while (1) {
- udelay(10000);
-
- status = ata_check_altstatus(&ap);
-
- if ((status & ATA_BUSY) == 0) {
- printf("\n");
- break;
- }
-
- i++;
- if (i > (ATA_RESET_TIME * 100)) {
- printf("** TimeOUT **\n");
-
- dev_state = SATA_NODEVICE;
- return 1;
- }
- if ((i >= 100) && ((i % 100) == 0))
- printf(".");
- }
-
- udelay(1000);
-
- rc = ata_dev_read_id(ata_dev, &ata_dev->class,
- ATA_READID_POSTRESET,ata_dev->id);
- if (rc) {
- printf("sata_dwc : error. failed sata scan\n");
- return 1;
- }
-
- /* SATA drives indicate we have a bridge. We don't know which
- * end of the link the bridge is which is a problem
- */
- if (ata_id_is_sata(ata_dev->id))
- ap.cbl = ATA_CBL_SATA;
-
- id = ata_dev->id;
-
- ata_dev->flags &= ~ATA_DFLAG_CFG_MASK;
- ata_dev->max_sectors = 0;
- ata_dev->cdb_len = 0;
- ata_dev->n_sectors = 0;
- ata_dev->cylinders = 0;
- ata_dev->heads = 0;
- ata_dev->sectors = 0;
-
- if (id[ATA_ID_FIELD_VALID] & (1 << 1)) {
- pio_mask = id[ATA_ID_PIO_MODES] & 0x03;
- pio_mask <<= 3;
- pio_mask |= 0x7;
- } else {
- /* If word 64 isn't valid then Word 51 high byte holds
- * the PIO timing number for the maximum. Turn it into
- * a mask.
- */
- u8 mode = (id[ATA_ID_OLD_PIO_MODES] >> 8) & 0xFF;
- if (mode < 5) {
- pio_mask = (2 << mode) - 1;
- } else {
- pio_mask = 1;
- }
- }
-
- mwdma_mask = id[ATA_ID_MWDMA_MODES] & 0x07;
-
- if (ata_id_is_cfa(id)) {
- int pio = id[163] & 0x7;
- int dma = (id[163] >> 3) & 7;
-
- if (pio)
- pio_mask |= (1 << 5);
- if (pio > 1)
- pio_mask |= (1 << 6);
- if (dma)
- mwdma_mask |= (1 << 3);
- if (dma > 1)
- mwdma_mask |= (1 << 4);
- }
-
- if (ata_dev->class == ATA_DEV_ATA) {
- if (ata_id_is_cfa(id)) {
- if (id[162] & 1)
- printf("supports DRM functions and may "
- "not be fully accessable.\n");
- strcpy(revbuf, "CFA");
- } else {
- if (ata_id_has_tpm(id))
- printf("supports DRM functions and may "
- "not be fully accessable.\n");
- }
-
- ata_dev->n_sectors = ata_id_n_sectors((u16*)id);
-
- if (ata_dev->id[59] & 0x100)
- ata_dev->multi_count = ata_dev->id[59] & 0xff;
-
- if (ata_id_has_lba(id)) {
- char ncq_desc[20];
-
- ata_dev->flags |= ATA_DFLAG_LBA;
- if (ata_id_has_lba48(id)) {
- ata_dev->flags |= ATA_DFLAG_LBA48;
-
- if (ata_dev->n_sectors >= (1UL << 28) &&
- ata_id_has_flush_ext(id))
- ata_dev->flags |= ATA_DFLAG_FLUSH_EXT;
- }
- if (!ata_id_has_ncq(ata_dev->id))
- ncq_desc[0] = '\0';
-
- if (ata_dev->horkage & ATA_HORKAGE_NONCQ)
- strcpy(ncq_desc, "NCQ (not used)");
-
- if (ap.flags & ATA_FLAG_NCQ)
- ata_dev->flags |= ATA_DFLAG_NCQ;
- }
- ata_dev->cdb_len = 16;
- }
- ata_dev->max_sectors = ATA_MAX_SECTORS;
- if (ata_dev->flags & ATA_DFLAG_LBA48)
- ata_dev->max_sectors = ATA_MAX_SECTORS_LBA48;
-
- if (!(ata_dev->horkage & ATA_HORKAGE_IPM)) {
- if (ata_id_has_hipm(ata_dev->id))
- ata_dev->flags |= ATA_DFLAG_HIPM;
- if (ata_id_has_dipm(ata_dev->id))
- ata_dev->flags |= ATA_DFLAG_DIPM;
- }
-
- if ((ap.cbl == ATA_CBL_SATA) && (!ata_id_is_sata(ata_dev->id))) {
- ata_dev->udma_mask &= ATA_UDMA5;
- ata_dev->max_sectors = ATA_MAX_SECTORS;
- }
-
- if (ata_dev->horkage & ATA_HORKAGE_DIAGNOSTIC) {
- printf("Drive reports diagnostics failure."
- "This may indicate a drive\n");
- printf("fault or invalid emulation."
- "Contact drive vendor for information.\n");
- }
-
- rc = check_sata_dev_state();
-
- ata_id_c_string(ata_dev->id,
- (unsigned char *)sata_dev_desc[dev].revision,
- ATA_ID_FW_REV, sizeof(sata_dev_desc[dev].revision));
- ata_id_c_string(ata_dev->id,
- (unsigned char *)sata_dev_desc[dev].vendor,
- ATA_ID_PROD, sizeof(sata_dev_desc[dev].vendor));
- ata_id_c_string(ata_dev->id,
- (unsigned char *)sata_dev_desc[dev].product,
- ATA_ID_SERNO, sizeof(sata_dev_desc[dev].product));
-
- sata_dev_desc[dev].lba = (u32) ata_dev->n_sectors;
-
-#ifdef CONFIG_LBA48
- if (ata_dev->id[83] & (1 << 10)) {
- sata_dev_desc[dev].lba48 = 1;
- } else {
- sata_dev_desc[dev].lba48 = 0;
- }
-#endif
-
- return 0;
-}
-
-static u8 ata_busy_wait(struct ata_port *ap,
- unsigned int bits,unsigned int max)
-{
- u8 status;
-
- do {
- udelay(10);
- status = ata_check_status(ap);
- max--;
- } while (status != 0xff && (status & bits) && (max > 0));
-
- return status;
-}
-
-static int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
- unsigned int flags, u16 *id)
-{
- struct ata_port *ap = pap;
- unsigned int class = *p_class;
- struct ata_taskfile tf;
- unsigned int err_mask = 0;
- const char *reason;
- int may_fallback = 1, tried_spinup = 0;
- u8 status;
- int rc;
-
- status = ata_busy_wait(ap, ATA_BUSY, 30000);
- if (status & ATA_BUSY) {
- printf("BSY = 0 check. timeout.\n");
- rc = false;
- return rc;
- }
-
- ata_dev_select(ap, dev->devno, 1, 1);
-
-retry:
- memset(&tf, 0, sizeof(tf));
- ap->print_id = 1;
- ap->flags &= ~ATA_FLAG_DISABLED;
- tf.ctl = ap->ctl;
- tf.device = ATA_DEVICE_OBS;
- tf.command = ATA_CMD_ID_ATA;
- tf.protocol = ATA_PROT_PIO;
-
- /* Some devices choke if TF registers contain garbage. Make
- * sure those are properly initialized.
- */
- tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
-
- /* Device presence detection is unreliable on some
- * controllers. Always poll IDENTIFY if available.
- */
- tf.flags |= ATA_TFLAG_POLLING;
-
- temp_n_block = 1;
-
- err_mask = ata_exec_internal(dev, &tf, NULL, DMA_FROM_DEVICE,
- sizeof(id[0]) * ATA_ID_WORDS, 0);
-
- if (err_mask) {
- if (err_mask & AC_ERR_NODEV_HINT) {
- printf("NODEV after polling detection\n");
- return -ENOENT;
- }
-
- if ((err_mask == AC_ERR_DEV) && (tf.feature & ATA_ABORTED)) {
- /* Device or controller might have reported
- * the wrong device class. Give a shot at the
- * other IDENTIFY if the current one is
- * aborted by the device.
- */
- if (may_fallback) {
- may_fallback = 0;
-
- if (class == ATA_DEV_ATA) {
- class = ATA_DEV_ATAPI;
- } else {
- class = ATA_DEV_ATA;
- }
- goto retry;
- }
- /* Control reaches here iff the device aborted
- * both flavors of IDENTIFYs which happens
- * sometimes with phantom devices.
- */
- printf("both IDENTIFYs aborted, assuming NODEV\n");
- return -ENOENT;
- }
- rc = -EIO;
- reason = "I/O error";
- goto err_out;
- }
-
- /* Falling back doesn't make sense if ID data was read
- * successfully at least once.
- */
- may_fallback = 0;
-
- unsigned int id_cnt;
-
- for (id_cnt = 0; id_cnt < ATA_ID_WORDS; id_cnt++)
- id[id_cnt] = le16_to_cpu(id[id_cnt]);
-
-
- rc = -EINVAL;
- reason = "device reports invalid type";
-
- if (class == ATA_DEV_ATA) {
- if (!ata_id_is_ata(id) && !ata_id_is_cfa(id))
- goto err_out;
- } else {
- if (ata_id_is_ata(id))
- goto err_out;
- }
- if (!tried_spinup && (id[2] == 0x37c8 || id[2] == 0x738c)) {
- tried_spinup = 1;
- /*
- * Drive powered-up in standby mode, and requires a specific
- * SET_FEATURES spin-up subcommand before it will accept
- * anything other than the original IDENTIFY command.
- */
- err_mask = ata_dev_set_feature(dev, SETFEATURES_SPINUP, 0);
- if (err_mask && id[2] != 0x738c) {
- rc = -EIO;
- reason = "SPINUP failed";
- goto err_out;
- }
- /*
- * If the drive initially returned incomplete IDENTIFY info,
- * we now must reissue the IDENTIFY command.
- */
- if (id[2] == 0x37c8)
- goto retry;
- }
-
- if ((flags & ATA_READID_POSTRESET) && class == ATA_DEV_ATA) {
- /*
- * The exact sequence expected by certain pre-ATA4 drives is:
- * SRST RESET
- * IDENTIFY (optional in early ATA)
- * INITIALIZE DEVICE PARAMETERS (later IDE and ATA)
- * anything else..
- * Some drives were very specific about that exact sequence.
- *
- * Note that ATA4 says lba is mandatory so the second check
- * shoud never trigger.
- */
- if (ata_id_major_version(id) < 4 || !ata_id_has_lba(id)) {
- err_mask = ata_dev_init_params(dev, id[3], id[6]);
- if (err_mask) {
- rc = -EIO;
- reason = "INIT_DEV_PARAMS failed";
- goto err_out;
- }
-
- /* current CHS translation info (id[53-58]) might be
- * changed. reread the identify device info.
- */
- flags &= ~ATA_READID_POSTRESET;
- goto retry;
- }
- }
-
- *p_class = class;
- return 0;
-
-err_out:
- printf("failed to READ ID (%s, err_mask=0x%x)\n", reason, err_mask);
- return rc;
-}
-
-static u8 ata_wait_idle(struct ata_port *ap)
-{
- u8 status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
- return status;
-}
-
-static void ata_dev_select(struct ata_port *ap, unsigned int device,
- unsigned int wait, unsigned int can_sleep)
-{
- if (wait)
- ata_wait_idle(ap);
-
- ata_std_dev_select(ap, device);
-
- if (wait)
- ata_wait_idle(ap);
-}
-
-static void ata_std_dev_select(struct ata_port *ap, unsigned int device)
-{
- u8 tmp;
-
- if (device == 0) {
- tmp = ATA_DEVICE_OBS;
- } else {
- tmp = ATA_DEVICE_OBS | ATA_DEV1;
- }
-
- writeb(tmp, ap->ioaddr.device_addr);
-
- readb(ap->ioaddr.altstatus_addr);
-
- udelay(1);
-}
-
-static int waiting_for_reg_state(volatile u8 *offset,
- int timeout_msec,
- u32 sign)
-{
- int i;
- u32 status;
-
- for (i = 0; i < timeout_msec; i++) {
- status = readl(offset);
- if ((status & sign) != 0)
- break;
- msleep(1);
- }
-
- return (i < timeout_msec) ? 0 : -1;
-}
-
-static void ata_qc_reinit(struct ata_queued_cmd *qc)
-{
- qc->dma_dir = DMA_NONE;
- qc->flags = 0;
- qc->nbytes = qc->extrabytes = qc->curbytes = 0;
- qc->n_elem = 0;
- qc->err_mask = 0;
- qc->sect_size = ATA_SECT_SIZE;
- qc->nbytes = ATA_SECT_SIZE * temp_n_block;
-
- memset(&qc->tf, 0, sizeof(qc->tf));
- qc->tf.ctl = 0;
- qc->tf.device = ATA_DEVICE_OBS;
-
- qc->result_tf.command = ATA_DRDY;
- qc->result_tf.feature = 0;
-}
-
-struct ata_queued_cmd *__ata_qc_from_tag(struct ata_port *ap,
- unsigned int tag)
-{
- if (tag < ATA_MAX_QUEUE)
- return &ap->qcmd[tag];
- return NULL;
-}
-
-static void __ata_port_freeze(struct ata_port *ap)
-{
- printf("set port freeze.\n");
- ap->pflags |= ATA_PFLAG_FROZEN;
-}
-
-static int ata_port_freeze(struct ata_port *ap)
-{
- __ata_port_freeze(ap);
- return 0;
-}
-
-unsigned ata_exec_internal(struct ata_device *dev,
- struct ata_taskfile *tf, const u8 *cdb,
- int dma_dir, unsigned int buflen,
- unsigned long timeout)
-{
- struct ata_link *link = dev->link;
- struct ata_port *ap = pap;
- struct ata_queued_cmd *qc;
- unsigned int tag, preempted_tag;
- u32 preempted_sactive, preempted_qc_active;
- int preempted_nr_active_links;
- unsigned int err_mask;
- int rc = 0;
- u8 status;
-
- status = ata_busy_wait(ap, ATA_BUSY, 300000);
- if (status & ATA_BUSY) {
- printf("BSY = 0 check. timeout.\n");
- rc = false;
- return rc;
- }
-
- if (ap->pflags & ATA_PFLAG_FROZEN)
- return AC_ERR_SYSTEM;
-
- tag = ATA_TAG_INTERNAL;
-
- if (test_and_set_bit(tag, &ap->qc_allocated)) {
- rc = false;
- return rc;
- }
-
- qc = __ata_qc_from_tag(ap, tag);
- qc->tag = tag;
- qc->ap = ap;
- qc->dev = dev;
-
- ata_qc_reinit(qc);
-
- preempted_tag = link->active_tag;
- preempted_sactive = link->sactive;
- preempted_qc_active = ap->qc_active;
- preempted_nr_active_links = ap->nr_active_links;
- link->active_tag = ATA_TAG_POISON;
- link->sactive = 0;
- ap->qc_active = 0;
- ap->nr_active_links = 0;
-
- qc->tf = *tf;
- if (cdb)
- memcpy(qc->cdb, cdb, ATAPI_CDB_LEN);
- qc->flags |= ATA_QCFLAG_RESULT_TF;
- qc->dma_dir = dma_dir;
- qc->private_data = 0;
-
- ata_qc_issue(qc);
-
- if (!timeout)
- timeout = ata_probe_timeout * 1000 / HZ;
-
- status = ata_busy_wait(ap, ATA_BUSY, 30000);
- if (status & ATA_BUSY) {
- printf("BSY = 0 check. timeout.\n");
- printf("altstatus = 0x%x.\n", status);
- qc->err_mask |= AC_ERR_OTHER;
- return qc->err_mask;
- }
-
- if (waiting_for_reg_state(ap->ioaddr.altstatus_addr, 1000, 0x8)) {
- u8 status = 0;
- u8 errorStatus = 0;
-
- status = readb(ap->ioaddr.altstatus_addr);
- if ((status & 0x01) != 0) {
- errorStatus = readb(ap->ioaddr.feature_addr);
- if (errorStatus == 0x04 &&
- qc->tf.command == ATA_CMD_PIO_READ_EXT){
- printf("Hard Disk doesn't support LBA48\n");
- dev_state = SATA_ERROR;
- qc->err_mask |= AC_ERR_OTHER;
- return qc->err_mask;
- }
- }
- qc->err_mask |= AC_ERR_OTHER;
- return qc->err_mask;
- }
-
- status = ata_busy_wait(ap, ATA_BUSY, 10);
- if (status & ATA_BUSY) {
- printf("BSY = 0 check. timeout.\n");
- qc->err_mask |= AC_ERR_OTHER;
- return qc->err_mask;
- }
-
- ata_pio_task(ap);
-
- if (!rc) {
- if (qc->flags & ATA_QCFLAG_ACTIVE) {
- qc->err_mask |= AC_ERR_TIMEOUT;
- ata_port_freeze(ap);
- }
- }
-
- if (qc->flags & ATA_QCFLAG_FAILED) {
- if (qc->result_tf.command & (ATA_ERR | ATA_DF))
- qc->err_mask |= AC_ERR_DEV;
-
- if (!qc->err_mask)
- qc->err_mask |= AC_ERR_OTHER;
-
- if (qc->err_mask & ~AC_ERR_OTHER)
- qc->err_mask &= ~AC_ERR_OTHER;
- }
-
- *tf = qc->result_tf;
- err_mask = qc->err_mask;
- ata_qc_free(qc);
- link->active_tag = preempted_tag;
- link->sactive = preempted_sactive;
- ap->qc_active = preempted_qc_active;
- ap->nr_active_links = preempted_nr_active_links;
-
- if (ap->flags & ATA_FLAG_DISABLED) {
- err_mask |= AC_ERR_SYSTEM;
- ap->flags &= ~ATA_FLAG_DISABLED;
- }
-
- return err_mask;
-}
-
-static void ata_qc_issue(struct ata_queued_cmd *qc)
-{
- struct ata_port *ap = qc->ap;
- struct ata_link *link = qc->dev->link;
- u8 prot = qc->tf.protocol;
-
- if (ata_is_ncq(prot)) {
- if (!link->sactive)
- ap->nr_active_links++;
- link->sactive |= 1 << qc->tag;
- } else {
- ap->nr_active_links++;
- link->active_tag = qc->tag;
- }
-
- qc->flags |= ATA_QCFLAG_ACTIVE;
- ap->qc_active |= 1 << qc->tag;
-
- if (qc->dev->flags & ATA_DFLAG_SLEEPING) {
- msleep(1);
- return;
- }
-
- qc->err_mask |= ata_qc_issue_prot(qc);
- if (qc->err_mask)
- goto err;
-
- return;
-err:
- ata_qc_complete(qc);
-}
-
-static unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc)
-{
- struct ata_port *ap = qc->ap;
-
- if (ap->flags & ATA_FLAG_PIO_POLLING) {
- switch (qc->tf.protocol) {
- case ATA_PROT_PIO:
- case ATA_PROT_NODATA:
- case ATAPI_PROT_PIO:
- case ATAPI_PROT_NODATA:
- qc->tf.flags |= ATA_TFLAG_POLLING;
- break;
- default:
- break;
- }
- }
-
- ata_dev_select(ap, qc->dev->devno, 1, 0);
-
- switch (qc->tf.protocol) {
- case ATA_PROT_PIO:
- if (qc->tf.flags & ATA_TFLAG_POLLING)
- qc->tf.ctl |= ATA_NIEN;
-
- ata_tf_to_host(ap, &qc->tf);
-
- ap->hsm_task_state = HSM_ST;
-
- if (qc->tf.flags & ATA_TFLAG_POLLING)
- ata_pio_queue_task(ap, qc, 0);
-
- break;
-
- default:
- return AC_ERR_SYSTEM;
- }
-
- return 0;
-}
-
-static void ata_tf_to_host(struct ata_port *ap,
- const struct ata_taskfile *tf)
-{
- ata_tf_load(ap, tf);
- ata_exec_command(ap, tf);
-}
-
-static void ata_tf_load(struct ata_port *ap,
- const struct ata_taskfile *tf)
-{
- struct ata_ioports *ioaddr = &ap->ioaddr;
- unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
-
- if (tf->ctl != ap->last_ctl) {
- if (ioaddr->ctl_addr)
- writeb(tf->ctl, ioaddr->ctl_addr);
- ap->last_ctl = tf->ctl;
- ata_wait_idle(ap);
- }
-
- if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
- writeb(tf->hob_feature, ioaddr->feature_addr);
- writeb(tf->hob_nsect, ioaddr->nsect_addr);
- writeb(tf->hob_lbal, ioaddr->lbal_addr);
- writeb(tf->hob_lbam, ioaddr->lbam_addr);
- writeb(tf->hob_lbah, ioaddr->lbah_addr);
- }
-
- if (is_addr) {
- writeb(tf->feature, ioaddr->feature_addr);
- writeb(tf->nsect, ioaddr->nsect_addr);
- writeb(tf->lbal, ioaddr->lbal_addr);
- writeb(tf->lbam, ioaddr->lbam_addr);
- writeb(tf->lbah, ioaddr->lbah_addr);
- }
-
- if (tf->flags & ATA_TFLAG_DEVICE)
- writeb(tf->device, ioaddr->device_addr);
-
- ata_wait_idle(ap);
-}
-
-static void ata_exec_command(struct ata_port *ap,
- const struct ata_taskfile *tf)
-{
- writeb(tf->command, ap->ioaddr.command_addr);
-
- readb(ap->ioaddr.altstatus_addr);
-
- udelay(1);
-}
-
-static void ata_pio_queue_task(struct ata_port *ap,
- void *data,unsigned long delay)
-{
- ap->port_task_data = data;
-}
-
-static unsigned int ac_err_mask(u8 status)
-{
- if (status & (ATA_BUSY | ATA_DRQ))
- return AC_ERR_HSM;
- if (status & (ATA_ERR | ATA_DF))
- return AC_ERR_DEV;
- return 0;
-}
-
-static unsigned int __ac_err_mask(u8 status)
-{
- unsigned int mask = ac_err_mask(status);
- if (mask == 0)
- return AC_ERR_OTHER;
- return mask;
-}
-
-static void ata_pio_task(struct ata_port *arg_ap)
-{
- struct ata_port *ap = arg_ap;
- struct ata_queued_cmd *qc = ap->port_task_data;
- u8 status;
- int poll_next;
-
-fsm_start:
- /*
- * This is purely heuristic. This is a fast path.
- * Sometimes when we enter, BSY will be cleared in
- * a chk-status or two. If not, the drive is probably seeking
- * or something. Snooze for a couple msecs, then
- * chk-status again. If still busy, queue delayed work.
- */
- status = ata_busy_wait(ap, ATA_BUSY, 5);
- if (status & ATA_BUSY) {
- msleep(2);
- status = ata_busy_wait(ap, ATA_BUSY, 10);
- if (status & ATA_BUSY) {
- ata_pio_queue_task(ap, qc, ATA_SHORT_PAUSE);
- return;
- }
- }
-
- poll_next = ata_hsm_move(ap, qc, status, 1);
-
- /* another command or interrupt handler
- * may be running at this point.
- */
- if (poll_next)
- goto fsm_start;
-}
-
-static int ata_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc,
- u8 status, int in_wq)
-{
- int poll_next;
-
-fsm_start:
- switch (ap->hsm_task_state) {
- case HSM_ST_FIRST:
- poll_next = (qc->tf.flags & ATA_TFLAG_POLLING);
-
- if ((status & ATA_DRQ) == 0) {
- if (status & (ATA_ERR | ATA_DF)) {
- qc->err_mask |= AC_ERR_DEV;
- } else {
- qc->err_mask |= AC_ERR_HSM;
- }
- ap->hsm_task_state = HSM_ST_ERR;
- goto fsm_start;
- }
-
- /* Device should not ask for data transfer (DRQ=1)
- * when it finds something wrong.
- * We ignore DRQ here and stop the HSM by
- * changing hsm_task_state to HSM_ST_ERR and
- * let the EH abort the command or reset the device.
- */
- if (status & (ATA_ERR | ATA_DF)) {
- if (!(qc->dev->horkage & ATA_HORKAGE_STUCK_ERR)) {
- printf("DRQ=1 with device error, "
- "dev_stat 0x%X\n", status);
- qc->err_mask |= AC_ERR_HSM;
- ap->hsm_task_state = HSM_ST_ERR;
- goto fsm_start;
- }
- }
-
- if (qc->tf.protocol == ATA_PROT_PIO) {
- /* PIO data out protocol.
- * send first data block.
- */
- /* ata_pio_sectors() might change the state
- * to HSM_ST_LAST. so, the state is changed here
- * before ata_pio_sectors().
- */
- ap->hsm_task_state = HSM_ST;
- ata_pio_sectors(qc);
- } else {
- printf("protocol is not ATA_PROT_PIO \n");
- }
- break;
-
- case HSM_ST:
- if ((status & ATA_DRQ) == 0) {
- if (status & (ATA_ERR | ATA_DF)) {
- qc->err_mask |= AC_ERR_DEV;
- } else {
- /* HSM violation. Let EH handle this.
- * Phantom devices also trigger this
- * condition. Mark hint.
- */
- qc->err_mask |= AC_ERR_HSM | AC_ERR_NODEV_HINT;
- }
-
- ap->hsm_task_state = HSM_ST_ERR;
- goto fsm_start;
- }
- /* For PIO reads, some devices may ask for
- * data transfer (DRQ=1) alone with ERR=1.
- * We respect DRQ here and transfer one
- * block of junk data before changing the
- * hsm_task_state to HSM_ST_ERR.
- *
- * For PIO writes, ERR=1 DRQ=1 doesn't make
- * sense since the data block has been
- * transferred to the device.
- */
- if (status & (ATA_ERR | ATA_DF)) {
- qc->err_mask |= AC_ERR_DEV;
-
- if (!(qc->tf.flags & ATA_TFLAG_WRITE)) {
- ata_pio_sectors(qc);
- status = ata_wait_idle(ap);
- }
-
- if (status & (ATA_BUSY | ATA_DRQ))
- qc->err_mask |= AC_ERR_HSM;
-
- /* ata_pio_sectors() might change the
- * state to HSM_ST_LAST. so, the state
- * is changed after ata_pio_sectors().
- */
- ap->hsm_task_state = HSM_ST_ERR;
- goto fsm_start;
- }
-
- ata_pio_sectors(qc);
- if (ap->hsm_task_state == HSM_ST_LAST &&
- (!(qc->tf.flags & ATA_TFLAG_WRITE))) {
- status = ata_wait_idle(ap);
- goto fsm_start;
- }
-
- poll_next = 1;
- break;
-
- case HSM_ST_LAST:
- if (!ata_ok(status)) {
- qc->err_mask |= __ac_err_mask(status);
- ap->hsm_task_state = HSM_ST_ERR;
- goto fsm_start;
- }
-
- ap->hsm_task_state = HSM_ST_IDLE;
-
- ata_hsm_qc_complete(qc, in_wq);
-
- poll_next = 0;
- break;
-
- case HSM_ST_ERR:
- /* make sure qc->err_mask is available to
- * know what's wrong and recover
- */
- ap->hsm_task_state = HSM_ST_IDLE;
-
- ata_hsm_qc_complete(qc, in_wq);
-
- poll_next = 0;
- break;
- default:
- poll_next = 0;
- }
-
- return poll_next;
-}
-
-static void ata_pio_sectors(struct ata_queued_cmd *qc)
-{
- struct ata_port *ap;
- ap = pap;
- qc->pdata = ap->pdata;
-
- ata_pio_sector(qc);
-
- readb(qc->ap->ioaddr.altstatus_addr);
- udelay(1);
-}
-
-static void ata_pio_sector(struct ata_queued_cmd *qc)
-{
- int do_write = (qc->tf.flags & ATA_TFLAG_WRITE);
- struct ata_port *ap = qc->ap;
- unsigned int offset;
- unsigned char *buf;
- char temp_data_buf[512];
-
- if (qc->curbytes == qc->nbytes - qc->sect_size)
- ap->hsm_task_state = HSM_ST_LAST;
-
- offset = qc->curbytes;
-
- switch (qc->tf.command) {
- case ATA_CMD_ID_ATA:
- buf = (unsigned char *)&ata_device.id[0];
- break;
- case ATA_CMD_PIO_READ_EXT:
- case ATA_CMD_PIO_READ:
- case ATA_CMD_PIO_WRITE_EXT:
- case ATA_CMD_PIO_WRITE:
- buf = qc->pdata + offset;
- break;
- default:
- buf = (unsigned char *)&temp_data_buf[0];
- }
-
- ata_mmio_data_xfer(qc->dev, buf, qc->sect_size, do_write);
-
- qc->curbytes += qc->sect_size;
-
-}
-
-static void ata_mmio_data_xfer(struct ata_device *dev, unsigned char *buf,
- unsigned int buflen, int do_write)
-{
- struct ata_port *ap = pap;
- void __iomem *data_addr = ap->ioaddr.data_addr;
- unsigned int words = buflen >> 1;
- u16 *buf16 = (u16 *)buf;
- unsigned int i = 0;
-
- udelay(100);
- if (do_write) {
- for (i = 0; i < words; i++)
- writew(le16_to_cpu(buf16[i]), data_addr);
- } else {
- for (i = 0; i < words; i++)
- buf16[i] = cpu_to_le16(readw(data_addr));
- }
-
- if (buflen & 0x01) {
- __le16 align_buf[1] = { 0 };
- unsigned char *trailing_buf = buf + buflen - 1;
-
- if (do_write) {
- memcpy(align_buf, trailing_buf, 1);
- writew(le16_to_cpu(align_buf[0]), data_addr);
- } else {
- align_buf[0] = cpu_to_le16(readw(data_addr));
- memcpy(trailing_buf, align_buf, 1);
- }
- }
-}
-
-static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq)
-{
- struct ata_port *ap = qc->ap;
-
- if (in_wq) {
- /* EH might have kicked in while host lock is
- * released.
- */
- qc = &ap->qcmd[qc->tag];
- if (qc) {
- if (!(qc->err_mask & AC_ERR_HSM)) {
- ata_irq_on(ap);
- ata_qc_complete(qc);
- } else {
- ata_port_freeze(ap);
- }
- }
- } else {
- if (!(qc->err_mask & AC_ERR_HSM)) {
- ata_qc_complete(qc);
- } else {
- ata_port_freeze(ap);
- }
- }
-}
-
-static u8 ata_irq_on(struct ata_port *ap)
-{
- struct ata_ioports *ioaddr = &ap->ioaddr;
- u8 tmp;
-
- ap->ctl &= ~ATA_NIEN;
- ap->last_ctl = ap->ctl;
-
- if (ioaddr->ctl_addr)
- writeb(ap->ctl, ioaddr->ctl_addr);
-
- tmp = ata_wait_idle(ap);
-
- return tmp;
-}
-
-static unsigned int ata_tag_internal(unsigned int tag)
-{
- return tag == ATA_MAX_QUEUE - 1;
-}
-
-static void ata_qc_complete(struct ata_queued_cmd *qc)
-{
- struct ata_device *dev = qc->dev;
- if (qc->err_mask)
- qc->flags |= ATA_QCFLAG_FAILED;
-
- if (qc->flags & ATA_QCFLAG_FAILED) {
- if (!ata_tag_internal(qc->tag)) {
- fill_result_tf(qc);
- return;
- }
- }
- if (qc->flags & ATA_QCFLAG_RESULT_TF)
- fill_result_tf(qc);
-
- /* Some commands need post-processing after successful
- * completion.
- */
- switch (qc->tf.command) {
- case ATA_CMD_SET_FEATURES:
- if (qc->tf.feature != SETFEATURES_WC_ON &&
- qc->tf.feature != SETFEATURES_WC_OFF)
- break;
- case ATA_CMD_INIT_DEV_PARAMS:
- case ATA_CMD_SET_MULTI:
- break;
-
- case ATA_CMD_SLEEP:
- dev->flags |= ATA_DFLAG_SLEEPING;
- break;
- }
-
- __ata_qc_complete(qc);
-}
-
-static void fill_result_tf(struct ata_queued_cmd *qc)
-{
- struct ata_port *ap = qc->ap;
-
- qc->result_tf.flags = qc->tf.flags;
- ata_tf_read(ap, &qc->result_tf);
-}
-
-static void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
-{
- struct ata_ioports *ioaddr = &ap->ioaddr;
-
- tf->command = ata_check_status(ap);
- tf->feature = readb(ioaddr->error_addr);
- tf->nsect = readb(ioaddr->nsect_addr);
- tf->lbal = readb(ioaddr->lbal_addr);
- tf->lbam = readb(ioaddr->lbam_addr);
- tf->lbah = readb(ioaddr->lbah_addr);
- tf->device = readb(ioaddr->device_addr);
-
- if (tf->flags & ATA_TFLAG_LBA48) {
- if (ioaddr->ctl_addr) {
- writeb(tf->ctl | ATA_HOB, ioaddr->ctl_addr);
-
- tf->hob_feature = readb(ioaddr->error_addr);
- tf->hob_nsect = readb(ioaddr->nsect_addr);
- tf->hob_lbal = readb(ioaddr->lbal_addr);
- tf->hob_lbam = readb(ioaddr->lbam_addr);
- tf->hob_lbah = readb(ioaddr->lbah_addr);
-
- writeb(tf->ctl, ioaddr->ctl_addr);
- ap->last_ctl = tf->ctl;
- } else {
- printf("sata_dwc warnning register read.\n");
- }
- }
-}
-
-static void __ata_qc_complete(struct ata_queued_cmd *qc)
-{
- struct ata_port *ap = qc->ap;
- struct ata_link *link = qc->dev->link;
-
- link->active_tag = ATA_TAG_POISON;
- ap->nr_active_links--;
-
- if (qc->flags & ATA_QCFLAG_CLEAR_EXCL && ap->excl_link == link)
- ap->excl_link = NULL;
-
- qc->flags &= ~ATA_QCFLAG_ACTIVE;
- ap->qc_active &= ~(1 << qc->tag);
-}
-
-static void ata_qc_free(struct ata_queued_cmd *qc)
-{
- struct ata_port *ap = qc->ap;
- unsigned int tag;
- qc->flags = 0;
- tag = qc->tag;
- if (tag < ATA_MAX_QUEUE) {
- qc->tag = ATA_TAG_POISON;
- clear_bit(tag, &ap->qc_allocated);
- }
-}
-
-static int check_sata_dev_state(void)
-{
- unsigned long datalen;
- unsigned char *pdata;
- int ret = 0;
- int i = 0;
- char temp_data_buf[512];
-
- while (1) {
- udelay(10000);
-
- pdata = (unsigned char*)&temp_data_buf[0];
- datalen = 512;
-
- ret = ata_dev_read_sectors(pdata, datalen, 0, 1);
-
- if (ret == true)
- break;
-
- i++;
- if (i > (ATA_RESET_TIME * 100)) {
- printf("** TimeOUT **\n");
- dev_state = SATA_NODEVICE;
- return false;
- }
-
- if ((i >= 100) && ((i % 100) == 0))
- printf(".");
- }
-
- dev_state = SATA_READY;
-
- return true;
-}
-
-static unsigned int ata_dev_set_feature(struct ata_device *dev,
- u8 enable, u8 feature)
-{
- struct ata_taskfile tf;
- struct ata_port *ap;
- ap = pap;
- unsigned int err_mask;
-
- memset(&tf, 0, sizeof(tf));
- tf.ctl = ap->ctl;
-
- tf.device = ATA_DEVICE_OBS;
- tf.command = ATA_CMD_SET_FEATURES;
- tf.feature = enable;
- tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
- tf.protocol = ATA_PROT_NODATA;
- tf.nsect = feature;
-
- err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, 0, 0);
-
- return err_mask;
-}
-
-static unsigned int ata_dev_init_params(struct ata_device *dev,
- u16 heads, u16 sectors)
-{
- struct ata_taskfile tf;
- struct ata_port *ap;
- ap = pap;
- unsigned int err_mask;
-
- if (sectors < 1 || sectors > 255 || heads < 1 || heads > 16)
- return AC_ERR_INVALID;
-
- memset(&tf, 0, sizeof(tf));
- tf.ctl = ap->ctl;
- tf.device = ATA_DEVICE_OBS;
- tf.command = ATA_CMD_INIT_DEV_PARAMS;
- tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
- tf.protocol = ATA_PROT_NODATA;
- tf.nsect = sectors;
- tf.device |= (heads - 1) & 0x0f;
-
- err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, 0, 0);
-
- if (err_mask == AC_ERR_DEV && (tf.feature & ATA_ABORTED))
- err_mask = 0;
-
- return err_mask;
-}
-
-#if defined(CONFIG_SATA_DWC) && !defined(CONFIG_LBA48)
-#define SATA_MAX_READ_BLK 0xFF
-#else
-#define SATA_MAX_READ_BLK 0xFFFF
-#endif
-
-ulong sata_read(int device, ulong blknr, lbaint_t blkcnt, void *buffer)
-{
- ulong start,blks, buf_addr;
- unsigned short smallblks;
- unsigned long datalen;
- unsigned char *pdata;
- device &= 0xff;
-
- u32 block = 0;
- u32 n_block = 0;
-
- if (dev_state != SATA_READY)
- return 0;
-
- buf_addr = (unsigned long)buffer;
- start = blknr;
- blks = blkcnt;
- do {
- pdata = (unsigned char *)buf_addr;
- if (blks > SATA_MAX_READ_BLK) {
- datalen = sata_dev_desc[device].blksz * SATA_MAX_READ_BLK;
- smallblks = SATA_MAX_READ_BLK;
-
- block = (u32)start;
- n_block = (u32)smallblks;
-
- start += SATA_MAX_READ_BLK;
- blks -= SATA_MAX_READ_BLK;
- } else {
- datalen = sata_dev_desc[device].blksz * SATA_MAX_READ_BLK;
- datalen = sata_dev_desc[device].blksz * blks;
- smallblks = (unsigned short)blks;
-
- block = (u32)start;
- n_block = (u32)smallblks;
-
- start += blks;
- blks = 0;
- }
-
- if (ata_dev_read_sectors(pdata, datalen, block, n_block) != true) {
- printf("sata_dwc : Hard disk read error.\n");
- blkcnt -= blks;
- break;
- }
- buf_addr += datalen;
- } while (blks != 0);
-
- return (blkcnt);
-}
-
-static int ata_dev_read_sectors(unsigned char *pdata, unsigned long datalen,
- u32 block, u32 n_block)
-{
- struct ata_port *ap = pap;
- struct ata_device *dev = &ata_device;
- struct ata_taskfile tf;
- unsigned int class = ATA_DEV_ATA;
- unsigned int err_mask = 0;
- const char *reason;
- int may_fallback = 1;
-
- if (dev_state == SATA_ERROR)
- return false;
-
- ata_dev_select(ap, dev->devno, 1, 1);
-
-retry:
- memset(&tf, 0, sizeof(tf));
- tf.ctl = ap->ctl;
- ap->print_id = 1;
- ap->flags &= ~ATA_FLAG_DISABLED;
-
- ap->pdata = pdata;
-
- tf.device = ATA_DEVICE_OBS;
-
- temp_n_block = n_block;
-
-#ifdef CONFIG_LBA48
- tf.command = ATA_CMD_PIO_READ_EXT;
- tf.flags |= ATA_TFLAG_LBA | ATA_TFLAG_LBA48;
-
- tf.hob_feature = 31;
- tf.feature = 31;
- tf.hob_nsect = (n_block >> 8) & 0xff;
- tf.nsect = n_block & 0xff;
-
- tf.hob_lbah = 0x0;
- tf.hob_lbam = 0x0;
- tf.hob_lbal = (block >> 24) & 0xff;
- tf.lbah = (block >> 16) & 0xff;
- tf.lbam = (block >> 8) & 0xff;
- tf.lbal = block & 0xff;
-
- tf.device = 1 << 6;
- if (tf.flags & ATA_TFLAG_FUA)
- tf.device |= 1 << 7;
-#else
- tf.command = ATA_CMD_PIO_READ;
- tf.flags |= ATA_TFLAG_LBA ;
-
- tf.feature = 31;
- tf.nsect = n_block & 0xff;
-
- tf.lbah = (block >> 16) & 0xff;
- tf.lbam = (block >> 8) & 0xff;
- tf.lbal = block & 0xff;
-
- tf.device = (block >> 24) & 0xf;
-
- tf.device |= 1 << 6;
- if (tf.flags & ATA_TFLAG_FUA)
- tf.device |= 1 << 7;
-
-#endif
-
- tf.protocol = ATA_PROT_PIO;
-
- /* Some devices choke if TF registers contain garbage. Make
- * sure those are properly initialized.
- */
- tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
- tf.flags |= ATA_TFLAG_POLLING;
-
- err_mask = ata_exec_internal(dev, &tf, NULL, DMA_FROM_DEVICE, 0, 0);
-
- if (err_mask) {
- if (err_mask & AC_ERR_NODEV_HINT) {
- printf("READ_SECTORS NODEV after polling detection\n");
- return -ENOENT;
- }
-
- if ((err_mask == AC_ERR_DEV) && (tf.feature & ATA_ABORTED)) {
- /* Device or controller might have reported
- * the wrong device class. Give a shot at the
- * other IDENTIFY if the current one is
- * aborted by the device.
- */
- if (may_fallback) {
- may_fallback = 0;
-
- if (class == ATA_DEV_ATA) {
- class = ATA_DEV_ATAPI;
- } else {
- class = ATA_DEV_ATA;
- }
- goto retry;
- }
- /* Control reaches here iff the device aborted
- * both flavors of IDENTIFYs which happens
- * sometimes with phantom devices.
- */
- printf("both IDENTIFYs aborted, assuming NODEV\n");
- return -ENOENT;
- }
-
- reason = "I/O error";
- goto err_out;
- }
-
- return true;
-
-err_out:
- printf("failed to READ SECTORS (%s, err_mask=0x%x)\n", reason, err_mask);
- return false;
-}
-
-#if defined(CONFIG_SATA_DWC) && !defined(CONFIG_LBA48)
-#define SATA_MAX_WRITE_BLK 0xFF
-#else
-#define SATA_MAX_WRITE_BLK 0xFFFF
-#endif
-
-ulong sata_write(int device, ulong blknr, lbaint_t blkcnt, const void *buffer)
-{
- ulong start,blks, buf_addr;
- unsigned short smallblks;
- unsigned long datalen;
- unsigned char *pdata;
- device &= 0xff;
-
-
- u32 block = 0;
- u32 n_block = 0;
-
- if (dev_state != SATA_READY)
- return 0;
-
- buf_addr = (unsigned long)buffer;
- start = blknr;
- blks = blkcnt;
- do {
- pdata = (unsigned char *)buf_addr;
- if (blks > SATA_MAX_WRITE_BLK) {
- datalen = sata_dev_desc[device].blksz * SATA_MAX_WRITE_BLK;
- smallblks = SATA_MAX_WRITE_BLK;
-
- block = (u32)start;
- n_block = (u32)smallblks;
-
- start += SATA_MAX_WRITE_BLK;
- blks -= SATA_MAX_WRITE_BLK;
- } else {
- datalen = sata_dev_desc[device].blksz * blks;
- smallblks = (unsigned short)blks;
-
- block = (u32)start;
- n_block = (u32)smallblks;
-
- start += blks;
- blks = 0;
- }
-
- if (ata_dev_write_sectors(pdata, datalen, block, n_block) != true) {
- printf("sata_dwc : Hard disk read error.\n");
- blkcnt -= blks;
- break;
- }
- buf_addr += datalen;
- } while (blks != 0);
-
- return (blkcnt);
-}
-
-static int ata_dev_write_sectors(unsigned char* pdata, unsigned long datalen,
- u32 block, u32 n_block)
-{
- struct ata_port *ap = pap;
- struct ata_device *dev = &ata_device;
- struct ata_taskfile tf;
- unsigned int class = ATA_DEV_ATA;
- unsigned int err_mask = 0;
- const char *reason;
- int may_fallback = 1;
-
- if (dev_state == SATA_ERROR)
- return false;
-
- ata_dev_select(ap, dev->devno, 1, 1);
-
-retry:
- memset(&tf, 0, sizeof(tf));
- tf.ctl = ap->ctl;
- ap->print_id = 1;
- ap->flags &= ~ATA_FLAG_DISABLED;
-
- ap->pdata = pdata;
-
- tf.device = ATA_DEVICE_OBS;
-
- temp_n_block = n_block;
-
-
-#ifdef CONFIG_LBA48
- tf.command = ATA_CMD_PIO_WRITE_EXT;
- tf.flags |= ATA_TFLAG_LBA | ATA_TFLAG_LBA48 | ATA_TFLAG_WRITE;
-
- tf.hob_feature = 31;
- tf.feature = 31;
- tf.hob_nsect = (n_block >> 8) & 0xff;
- tf.nsect = n_block & 0xff;
-
- tf.hob_lbah = 0x0;
- tf.hob_lbam = 0x0;
- tf.hob_lbal = (block >> 24) & 0xff;
- tf.lbah = (block >> 16) & 0xff;
- tf.lbam = (block >> 8) & 0xff;
- tf.lbal = block & 0xff;
-
- tf.device = 1 << 6;
- if (tf.flags & ATA_TFLAG_FUA)
- tf.device |= 1 << 7;
-#else
- tf.command = ATA_CMD_PIO_WRITE;
- tf.flags |= ATA_TFLAG_LBA | ATA_TFLAG_WRITE;
-
- tf.feature = 31;
- tf.nsect = n_block & 0xff;
-
- tf.lbah = (block >> 16) & 0xff;
- tf.lbam = (block >> 8) & 0xff;
- tf.lbal = block & 0xff;
-
- tf.device = (block >> 24) & 0xf;
-
- tf.device |= 1 << 6;
- if (tf.flags & ATA_TFLAG_FUA)
- tf.device |= 1 << 7;
-
-#endif
-
- tf.protocol = ATA_PROT_PIO;
-
- /* Some devices choke if TF registers contain garbage. Make
- * sure those are properly initialized.
- */
- tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
- tf.flags |= ATA_TFLAG_POLLING;
-
- err_mask = ata_exec_internal(dev, &tf, NULL, DMA_FROM_DEVICE, 0, 0);
-
- if (err_mask) {
- if (err_mask & AC_ERR_NODEV_HINT) {
- printf("READ_SECTORS NODEV after polling detection\n");
- return -ENOENT;
- }
-
- if ((err_mask == AC_ERR_DEV) && (tf.feature & ATA_ABORTED)) {
- /* Device or controller might have reported
- * the wrong device class. Give a shot at the
- * other IDENTIFY if the current one is
- * aborted by the device.
- */
- if (may_fallback) {
- may_fallback = 0;
-
- if (class == ATA_DEV_ATA) {
- class = ATA_DEV_ATAPI;
- } else {
- class = ATA_DEV_ATA;
- }
- goto retry;
- }
- /* Control reaches here iff the device aborted
- * both flavors of IDENTIFYs which happens
- * sometimes with phantom devices.
- */
- printf("both IDENTIFYs aborted, assuming NODEV\n");
- return -ENOENT;
- }
-
- reason = "I/O error";
- goto err_out;
- }
-
- return true;
-
-err_out:
- printf("failed to WRITE SECTORS (%s, err_mask=0x%x)\n", reason, err_mask);
- return false;
-}
+++ /dev/null
-/*
- * sata_dwc.h
- *
- * Synopsys DesignWare Cores (DWC) SATA host driver
- *
- * Author: Mark Miesfeld <mmiesfeld@amcc.com>
- *
- * Ported from 2.6.19.2 to 2.6.25/26 by Stefan Roese <sr@denx.de>
- * Copyright 2008 DENX Software Engineering
- *
- * Based on versions provided by AMCC and Synopsys which are:
- * Copyright 2006 Applied Micro Circuits Corporation
- * COPYRIGHT (C) 2005 SYNOPSYS, INC. ALL RIGHTS RESERVED
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-/*
- * SATA support based on the chip canyonlands.
- *
- * 04-17-2009
- * The local version of this driver for the canyonlands board
- * does not use interrupts but polls the chip instead.
- */
-
-
-#ifndef _SATA_DWC_H_
-#define _SATA_DWC_H_
-
-#define __U_BOOT__
-
-#define HZ 100
-#define READ 0
-#define WRITE 1
-
-enum {
- ATA_READID_POSTRESET = (1 << 0),
-
- ATA_DNXFER_PIO = 0,
- ATA_DNXFER_DMA = 1,
- ATA_DNXFER_40C = 2,
- ATA_DNXFER_FORCE_PIO = 3,
- ATA_DNXFER_FORCE_PIO0 = 4,
-
- ATA_DNXFER_QUIET = (1 << 31),
-};
-
-enum hsm_task_states {
- HSM_ST_IDLE,
- HSM_ST_FIRST,
- HSM_ST,
- HSM_ST_LAST,
- HSM_ST_ERR,
-};
-
-#define ATA_SHORT_PAUSE ((HZ >> 6) + 1)
-
-struct ata_queued_cmd {
- struct ata_port *ap;
- struct ata_device *dev;
-
- struct ata_taskfile tf;
- u8 cdb[ATAPI_CDB_LEN];
- unsigned long flags;
- unsigned int tag;
- unsigned int n_elem;
-
- int dma_dir;
- unsigned int sect_size;
-
- unsigned int nbytes;
- unsigned int extrabytes;
- unsigned int curbytes;
-
- unsigned int err_mask;
- struct ata_taskfile result_tf;
-
- void *private_data;
-#ifndef __U_BOOT__
- void *lldd_task;
-#endif
- unsigned char *pdata;
-};
-
-typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc);
-
-#define ATA_TAG_POISON 0xfafbfcfdU
-
-enum {
- LIBATA_MAX_PRD = ATA_MAX_PRD / 2,
- LIBATA_DUMB_MAX_PRD = ATA_MAX_PRD / 4,
- ATA_MAX_PORTS = 8,
- ATA_DEF_QUEUE = 1,
- ATA_MAX_QUEUE = 32,
- ATA_TAG_INTERNAL = ATA_MAX_QUEUE - 1,
- ATA_MAX_BUS = 2,
- ATA_DEF_BUSY_WAIT = 10000,
-
- ATAPI_MAX_DRAIN = 16 << 10,
-
- ATA_SHT_EMULATED = 1,
- ATA_SHT_CMD_PER_LUN = 1,
- ATA_SHT_THIS_ID = -1,
- ATA_SHT_USE_CLUSTERING = 1,
-
- ATA_DFLAG_LBA = (1 << 0),
- ATA_DFLAG_LBA48 = (1 << 1),
- ATA_DFLAG_CDB_INTR = (1 << 2),
- ATA_DFLAG_NCQ = (1 << 3),
- ATA_DFLAG_FLUSH_EXT = (1 << 4),
- ATA_DFLAG_ACPI_PENDING = (1 << 5),
- ATA_DFLAG_ACPI_FAILED = (1 << 6),
- ATA_DFLAG_AN = (1 << 7),
- ATA_DFLAG_HIPM = (1 << 8),
- ATA_DFLAG_DIPM = (1 << 9),
- ATA_DFLAG_DMADIR = (1 << 10),
- ATA_DFLAG_CFG_MASK = (1 << 12) - 1,
-
- ATA_DFLAG_PIO = (1 << 12),
- ATA_DFLAG_NCQ_OFF = (1 << 13),
- ATA_DFLAG_SPUNDOWN = (1 << 14),
- ATA_DFLAG_SLEEPING = (1 << 15),
- ATA_DFLAG_DUBIOUS_XFER = (1 << 16),
- ATA_DFLAG_INIT_MASK = (1 << 24) - 1,
-
- ATA_DFLAG_DETACH = (1 << 24),
- ATA_DFLAG_DETACHED = (1 << 25),
-
- ATA_LFLAG_HRST_TO_RESUME = (1 << 0),
- ATA_LFLAG_SKIP_D2H_BSY = (1 << 1),
- ATA_LFLAG_NO_SRST = (1 << 2),
- ATA_LFLAG_ASSUME_ATA = (1 << 3),
- ATA_LFLAG_ASSUME_SEMB = (1 << 4),
- ATA_LFLAG_ASSUME_CLASS = ATA_LFLAG_ASSUME_ATA | ATA_LFLAG_ASSUME_SEMB,
- ATA_LFLAG_NO_RETRY = (1 << 5),
- ATA_LFLAG_DISABLED = (1 << 6),
-
- ATA_FLAG_SLAVE_POSS = (1 << 0),
- ATA_FLAG_SATA = (1 << 1),
- ATA_FLAG_NO_LEGACY = (1 << 2),
- ATA_FLAG_MMIO = (1 << 3),
- ATA_FLAG_SRST = (1 << 4),
- ATA_FLAG_SATA_RESET = (1 << 5),
- ATA_FLAG_NO_ATAPI = (1 << 6),
- ATA_FLAG_PIO_DMA = (1 << 7),
- ATA_FLAG_PIO_LBA48 = (1 << 8),
- ATA_FLAG_PIO_POLLING = (1 << 9),
- ATA_FLAG_NCQ = (1 << 10),
- ATA_FLAG_DEBUGMSG = (1 << 13),
- ATA_FLAG_IGN_SIMPLEX = (1 << 15),
- ATA_FLAG_NO_IORDY = (1 << 16),
- ATA_FLAG_ACPI_SATA = (1 << 17),
- ATA_FLAG_AN = (1 << 18),
- ATA_FLAG_PMP = (1 << 19),
- ATA_FLAG_IPM = (1 << 20),
-
- ATA_FLAG_DISABLED = (1 << 23),
-
- ATA_PFLAG_EH_PENDING = (1 << 0),
- ATA_PFLAG_EH_IN_PROGRESS = (1 << 1),
- ATA_PFLAG_FROZEN = (1 << 2),
- ATA_PFLAG_RECOVERED = (1 << 3),
- ATA_PFLAG_LOADING = (1 << 4),
- ATA_PFLAG_UNLOADING = (1 << 5),
- ATA_PFLAG_SCSI_HOTPLUG = (1 << 6),
- ATA_PFLAG_INITIALIZING = (1 << 7),
- ATA_PFLAG_RESETTING = (1 << 8),
- ATA_PFLAG_SUSPENDED = (1 << 17),
- ATA_PFLAG_PM_PENDING = (1 << 18),
-
- ATA_QCFLAG_ACTIVE = (1 << 0),
- ATA_QCFLAG_DMAMAP = (1 << 1),
- ATA_QCFLAG_IO = (1 << 3),
- ATA_QCFLAG_RESULT_TF = (1 << 4),
- ATA_QCFLAG_CLEAR_EXCL = (1 << 5),
- ATA_QCFLAG_QUIET = (1 << 6),
-
- ATA_QCFLAG_FAILED = (1 << 16),
- ATA_QCFLAG_SENSE_VALID = (1 << 17),
- ATA_QCFLAG_EH_SCHEDULED = (1 << 18),
-
- ATA_HOST_SIMPLEX = (1 << 0),
- ATA_HOST_STARTED = (1 << 1),
-
- ATA_TMOUT_BOOT = 30 * 100,
- ATA_TMOUT_BOOT_QUICK = 7 * 100,
- ATA_TMOUT_INTERNAL = 30 * 100,
- ATA_TMOUT_INTERNAL_QUICK = 5 * 100,
-
- /* FIXME: GoVault needs 2s but we can't afford that without
- * parallel probing. 800ms is enough for iVDR disk
- * HHD424020F7SV00. Increase to 2secs when parallel probing
- * is in place.
- */
- ATA_TMOUT_FF_WAIT = 4 * 100 / 5,
-
- BUS_UNKNOWN = 0,
- BUS_DMA = 1,
- BUS_IDLE = 2,
- BUS_NOINTR = 3,
- BUS_NODATA = 4,
- BUS_TIMER = 5,
- BUS_PIO = 6,
- BUS_EDD = 7,
- BUS_IDENTIFY = 8,
- BUS_PACKET = 9,
-
- PORT_UNKNOWN = 0,
- PORT_ENABLED = 1,
- PORT_DISABLED = 2,
-
- /* encoding various smaller bitmaps into a single
- * unsigned long bitmap
- */
- ATA_NR_PIO_MODES = 7,
- ATA_NR_MWDMA_MODES = 5,
- ATA_NR_UDMA_MODES = 8,
-
- ATA_SHIFT_PIO = 0,
- ATA_SHIFT_MWDMA = ATA_SHIFT_PIO + ATA_NR_PIO_MODES,
- ATA_SHIFT_UDMA = ATA_SHIFT_MWDMA + ATA_NR_MWDMA_MODES,
-
- ATA_DMA_PAD_SZ = 4,
-
- ATA_ERING_SIZE = 32,
-
- ATA_DEFER_LINK = 1,
- ATA_DEFER_PORT = 2,
-
- ATA_EH_DESC_LEN = 80,
-
- ATA_EH_REVALIDATE = (1 << 0),
- ATA_EH_SOFTRESET = (1 << 1),
- ATA_EH_HARDRESET = (1 << 2),
- ATA_EH_ENABLE_LINK = (1 << 3),
- ATA_EH_LPM = (1 << 4),
-
- ATA_EH_RESET_MASK = ATA_EH_SOFTRESET | ATA_EH_HARDRESET,
- ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE,
-
- ATA_EHI_HOTPLUGGED = (1 << 0),
- ATA_EHI_RESUME_LINK = (1 << 1),
- ATA_EHI_NO_AUTOPSY = (1 << 2),
- ATA_EHI_QUIET = (1 << 3),
-
- ATA_EHI_DID_SOFTRESET = (1 << 16),
- ATA_EHI_DID_HARDRESET = (1 << 17),
- ATA_EHI_PRINTINFO = (1 << 18),
- ATA_EHI_SETMODE = (1 << 19),
- ATA_EHI_POST_SETMODE = (1 << 20),
-
- ATA_EHI_DID_RESET = ATA_EHI_DID_SOFTRESET | ATA_EHI_DID_HARDRESET,
- ATA_EHI_RESET_MODIFIER_MASK = ATA_EHI_RESUME_LINK,
-
- ATA_EH_MAX_TRIES = 5,
-
- ATA_PROBE_MAX_TRIES = 3,
- ATA_EH_DEV_TRIES = 3,
- ATA_EH_PMP_TRIES = 5,
- ATA_EH_PMP_LINK_TRIES = 3,
-
- SATA_PMP_SCR_TIMEOUT = 250,
-
- /* Horkage types. May be set by libata or controller on drives
- (some horkage may be drive/controller pair dependant */
-
- ATA_HORKAGE_DIAGNOSTIC = (1 << 0),
- ATA_HORKAGE_NODMA = (1 << 1),
- ATA_HORKAGE_NONCQ = (1 << 2),
- ATA_HORKAGE_MAX_SEC_128 = (1 << 3),
- ATA_HORKAGE_BROKEN_HPA = (1 << 4),
- ATA_HORKAGE_SKIP_PM = (1 << 5),
- ATA_HORKAGE_HPA_SIZE = (1 << 6),
- ATA_HORKAGE_IPM = (1 << 7),
- ATA_HORKAGE_IVB = (1 << 8),
- ATA_HORKAGE_STUCK_ERR = (1 << 9),
-
- ATA_DMA_MASK_ATA = (1 << 0),
- ATA_DMA_MASK_ATAPI = (1 << 1),
- ATA_DMA_MASK_CFA = (1 << 2),
-
- ATAPI_READ = 0,
- ATAPI_WRITE = 1,
- ATAPI_READ_CD = 2,
- ATAPI_PASS_THRU = 3,
- ATAPI_MISC = 4,
-};
-
-enum ata_completion_errors {
- AC_ERR_DEV = (1 << 0),
- AC_ERR_HSM = (1 << 1),
- AC_ERR_TIMEOUT = (1 << 2),
- AC_ERR_MEDIA = (1 << 3),
- AC_ERR_ATA_BUS = (1 << 4),
- AC_ERR_HOST_BUS = (1 << 5),
- AC_ERR_SYSTEM = (1 << 6),
- AC_ERR_INVALID = (1 << 7),
- AC_ERR_OTHER = (1 << 8),
- AC_ERR_NODEV_HINT = (1 << 9),
- AC_ERR_NCQ = (1 << 10),
-};
-
-enum ata_xfer_mask {
- ATA_MASK_PIO = ((1LU << ATA_NR_PIO_MODES) - 1) << ATA_SHIFT_PIO,
- ATA_MASK_MWDMA = ((1LU << ATA_NR_MWDMA_MODES) - 1) << ATA_SHIFT_MWDMA,
- ATA_MASK_UDMA = ((1LU << ATA_NR_UDMA_MODES) - 1) << ATA_SHIFT_UDMA,
-};
-
-struct ata_port_info {
-#ifndef __U_BOOT__
- struct scsi_host_template *sht;
-#endif
- unsigned long flags;
- unsigned long link_flags;
- unsigned long pio_mask;
- unsigned long mwdma_mask;
- unsigned long udma_mask;
-#ifndef __U_BOOT__
- const struct ata_port_operations *port_ops;
- void *private_data;
-#endif
-};
-
-struct ata_ioports {
- void __iomem *cmd_addr;
- void __iomem *data_addr;
- void __iomem *error_addr;
- void __iomem *feature_addr;
- void __iomem *nsect_addr;
- void __iomem *lbal_addr;
- void __iomem *lbam_addr;
- void __iomem *lbah_addr;
- void __iomem *device_addr;
- void __iomem *status_addr;
- void __iomem *command_addr;
- void __iomem *altstatus_addr;
- void __iomem *ctl_addr;
-#ifndef __U_BOOT__
- void __iomem *bmdma_addr;
-#endif
- void __iomem *scr_addr;
-};
-
-struct ata_host {
-#ifndef __U_BOOT__
- void __iomem * const *iomap;
- void *private_data;
- const struct ata_port_operations *ops;
- unsigned long flags;
- struct ata_port *simplex_claimed;
-#endif
- unsigned int n_ports;
- struct ata_port *ports[0];
-};
-
-#ifndef __U_BOOT__
-struct ata_port_stats {
- unsigned long unhandled_irq;
- unsigned long idle_irq;
- unsigned long rw_reqbuf;
-};
-#endif
-
-struct ata_device {
- struct ata_link *link;
- unsigned int devno;
- unsigned long flags;
- unsigned int horkage;
-#ifndef __U_BOOT__
- struct scsi_device *sdev;
-#ifdef CONFIG_ATA_ACPI
- acpi_handle acpi_handle;
- union acpi_object *gtf_cache;
-#endif
-#endif
- u64 n_sectors;
- unsigned int class;
-
- union {
- u16 id[ATA_ID_WORDS];
- u32 gscr[SATA_PMP_GSCR_DWORDS];
- };
-#ifndef __U_BOOT__
- u8 pio_mode;
- u8 dma_mode;
- u8 xfer_mode;
- unsigned int xfer_shift;
-#endif
- unsigned int multi_count;
- unsigned int max_sectors;
- unsigned int cdb_len;
-#ifndef __U_BOOT__
- unsigned long pio_mask;
- unsigned long mwdma_mask;
-#endif
- unsigned long udma_mask;
- u16 cylinders;
- u16 heads;
- u16 sectors;
-#ifndef __U_BOOT__
- int spdn_cnt;
-#endif
-};
-
-struct ata_link {
- struct ata_port *ap;
- int pmp;
- unsigned int active_tag;
- u32 sactive;
- unsigned int flags;
- unsigned int hw_sata_spd_limit;
-#ifndef __U_BOOT__
- unsigned int sata_spd_limit;
- unsigned int sata_spd;
- struct ata_device device[2];
-#endif
-};
-
-struct ata_port {
- unsigned long flags;
- unsigned int pflags;
- unsigned int print_id;
- unsigned int port_no;
-
- struct ata_ioports ioaddr;
-
- u8 ctl;
- u8 last_ctl;
- unsigned int pio_mask;
- unsigned int mwdma_mask;
- unsigned int udma_mask;
- unsigned int cbl;
-
- struct ata_queued_cmd qcmd[ATA_MAX_QUEUE];
- unsigned long qc_allocated;
- unsigned int qc_active;
- int nr_active_links;
-
- struct ata_link link;
-#ifndef __U_BOOT__
- int nr_pmp_links;
- struct ata_link *pmp_link;
-#endif
- struct ata_link *excl_link;
- int nr_pmp_links;
-#ifndef __U_BOOT__
- struct ata_port_stats stats;
- struct device *dev;
- u32 msg_enable;
-#endif
- struct ata_host *host;
- void *port_task_data;
-
- unsigned int hsm_task_state;
- void *private_data;
- unsigned char *pdata;
-};
-
-#endif
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