]> git.kernelconcepts.de Git - karo-tx-uboot.git/commitdiff
drivers: add the support for Freescale SATA controller
authorDave Liu <r63238@freescale.com>
Wed, 26 Mar 2008 14:55:32 +0000 (22:55 +0800)
committerWolfgang Denk <wd@denx.de>
Wed, 26 Mar 2008 22:38:58 +0000 (23:38 +0100)
Add the Freescale on-chip SATA controller driver to u-boot,
The SATA controller is used on the 837x and 8315 targets,
The driver can be used to load kernel, fs and dtb.

The features list:
- 1.5/3 Gbps link speed
- LBA48, LBA28 support
- DMA and FPDMA support
- Two ports support

Signed-off-by: Dave Liu <daveliu@freescale.com>
drivers/block/Makefile
drivers/block/fsl_sata.c [new file with mode: 0644]
drivers/block/fsl_sata.h [new file with mode: 0644]

index d63ca2d0bfaf9aeadaad3d1616854b1519b37a67..dca3547919e6fe9227bc347d483927f9b5aa475f 100644 (file)
@@ -27,6 +27,7 @@ LIB   := $(obj)libblock.a
 
 COBJS-y += ahci.o
 COBJS-y += ata_piix.o
+COBJS-$(CONFIG_FSL_SATA) += fsl_sata.o
 COBJS-$(CONFIG_LIBATA) += libata.o
 COBJS-y += sil680.o
 COBJS-y += sym53c8xx.o
diff --git a/drivers/block/fsl_sata.c b/drivers/block/fsl_sata.c
new file mode 100644 (file)
index 0000000..7436c4d
--- /dev/null
@@ -0,0 +1,916 @@
+/*
+ * Copyright (C) 2008 Freescale Semiconductor, Inc.
+ *             Dave Liu <daveliu@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/io.h>
+#include <malloc.h>
+#include <libata.h>
+#include <fis.h>
+#include "fsl_sata.h"
+
+extern block_dev_desc_t sata_dev_desc[CFG_SATA_MAX_DEVICE];
+
+#ifndef CFG_SATA1_FLAGS
+       #define CFG_SATA1_FLAGS FLAGS_DMA
+#endif
+#ifndef CFG_SATA2_FLAGS
+       #define CFG_SATA2_FLAGS FLAGS_DMA
+#endif
+
+static struct fsl_sata_info fsl_sata_info[] = {
+#ifdef CONFIG_SATA1
+       {CFG_SATA1, CFG_SATA1_FLAGS},
+#else
+       {0, 0},
+#endif
+#ifdef CONFIG_SATA2
+       {CFG_SATA2, CFG_SATA2_FLAGS},
+#else
+       {0, 0},
+#endif
+};
+
+static inline void mdelay(unsigned long msec)
+{
+       unsigned long i;
+       for (i = 0; i < msec; i++)
+               udelay(1000);
+}
+
+static inline void sdelay(unsigned long sec)
+{
+       unsigned long i;
+       for (i = 0; i < sec; i++)
+               mdelay(1000);
+}
+
+void dprint_buffer(unsigned char *buf, int len)
+{
+       int i, j;
+
+       i = 0;
+       j = 0;
+       printf("\n\r");
+
+       for (i = 0; i < len; i++) {
+               printf("%02x ", *buf++);
+               j++;
+               if (j == 16) {
+                       printf("\n\r");
+                       j = 0;
+               }
+       }
+       printf("\n\r");
+}
+
+static void fsl_sata_dump_sfis(struct sfis *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 int ata_wait_register(volatile unsigned *addr, u32 mask,
+                        u32 val, u32 timeout_msec)
+{
+       int i;
+       u32 temp;
+
+       for (i = 0; (((temp = in_le32(addr)) & mask) != val)
+                        && i < timeout_msec; i++)
+               mdelay(1);
+       return (i < timeout_msec) ? 0 : -1;
+}
+
+int init_sata(int dev)
+{
+       u32 length, align;
+       cmd_hdr_tbl_t *cmd_hdr;
+       u32 cda;
+       u32 val32;
+       fsl_sata_reg_t *reg;
+       u32 sig;
+       int i;
+       fsl_sata_t *sata;
+
+       if (dev < 0 || dev > (CFG_SATA_MAX_DEVICE - 1)) {
+               printf("the sata index %d is out of ranges\n\r", dev);
+               return -1;
+       }
+
+       /* 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 -1;
+       }
+       /* Zero all of the device driver struct */
+       memset((void *)sata, 0, sizeof(fsl_sata_t));
+
+       /* Save the private struct to block device struct */
+       sata_dev_desc[dev].priv = (void *)sata;
+
+       sprintf(sata->name, "SATA%d", dev);
+
+       /* Set the controller register base address to device struct */
+       reg = (fsl_sata_reg_t *)(fsl_sata_info[dev].sata_reg_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) {
+               printf("alloc the command header failed\n\r");
+               return -1;
+       }
+
+       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 -1;
+       }
+       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 */
+       if (!dev)
+               printf("%s ", sata->name);
+       else
+               printf("       %s ", sata->name);
+
+       /* 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 -1;
+       }
+
+       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");
+
+       return 0;
+}
+
+/* Hardware reset, like Power-on and COMRESET */
+void fsl_sata_hardware_reset(u32 reg_base)
+{
+       fsl_sata_reg_t *reg = (fsl_sata_reg_t *)reg_base;
+       u32 scontrol;
+
+       /* Disable the SATA interface and put PHY offline */
+       scontrol = in_le32(&reg->scontrol);
+       scontrol = (scontrol & 0x0f0) | 0x304;
+       out_le32(&reg->scontrol, scontrol);
+
+       /* No speed strict */
+       scontrol = in_le32(&reg->scontrol);
+       scontrol = scontrol & ~0x0f0;
+       out_le32(&reg->scontrol, scontrol);
+
+       /* Issue PHY wake/reset, Hardware_reset_asserted */
+       scontrol = in_le32(&reg->scontrol);
+       scontrol = (scontrol & 0x0f0) | 0x301;
+       out_le32(&reg->scontrol, scontrol);
+
+       mdelay(100);
+
+       /* Resume PHY, COMRESET negated, the device initialize hardware
+        * and execute diagnostics, send good status-signature to host,
+        * which is D2H register FIS, and then the device enter idle state.
+        */
+       scontrol = in_le32(&reg->scontrol);
+       scontrol = (scontrol & 0x0f0) | 0x300;
+       out_le32(&reg->scontrol, scontrol);
+
+       mdelay(100);
+       return;
+}
+
+static void fsl_sata_dump_regs(fsl_sata_reg_t *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 fsl_ata_exec_ata_cmd(struct fsl_sata *sata, struct cfis *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;
+       fsl_sata_reg_t *reg = sata->reg_base;
+       int i;
+
+       /* 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++;
+                       break;
+               } 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 commmand 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) {
+               u32 der;
+               fsl_sata_dump_sfis((struct sfis *)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_ata_exec_reset_cmd(struct fsl_sata *sata, struct cfis *cfis,
+                                int tag, u8 *buffer, u32 len)
+{
+       return 0;
+}
+
+static int fsl_sata_exec_cmd(struct fsl_sata *sata, struct cfis *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=\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_RESET:
+               rc = fsl_ata_exec_reset_cmd(sata, cfis, 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(int dev, u16 *id)
+{
+       fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
+       struct sata_fis_h2d h2d;
+       struct cfis *cfis;
+
+       cfis = (struct cfis *)&h2d;
+       memset((void *)cfis, 0, sizeof(struct cfis));
+
+       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(int dev, u16 *id)
+{
+       fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
+
+       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_set_features(int dev)
+{
+       fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
+       struct sata_fis_h2d h2d;
+       struct cfis *cfis;
+       u8 udma_cap;
+
+       cfis = (struct cfis *)&h2d;
+       memset((void *)cfis, 0, sizeof(struct cfis));
+
+       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(int dev, u32 start, u32 blkcnt, u8 *buffer, int is_write)
+{
+       fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
+       struct sata_fis_h2d h2d;
+       struct cfis *cfis;
+       u32 block;
+
+       block = start;
+       cfis = (struct cfis *)&h2d;
+
+       memset((void *)cfis, 0, sizeof(struct cfis));
+
+       cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
+       cfis->pm_port_c = 0x80; /* is command */
+       cfis->command = (is_write) ? ATA_CMD_WRITE_DMA : ATA_CMD_READ_DMA;
+       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;
+}
+
+void fsl_sata_flush_cache(int dev)
+{
+       fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
+       struct sata_fis_h2d h2d;
+       struct cfis *cfis;
+
+       cfis = (struct cfis *)&h2d;
+
+       memset((void *)cfis, 0, sizeof(struct cfis));
+
+       cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
+       cfis->pm_port_c = 0x80; /* is command */
+       cfis->command = ATA_CMD_FLUSH_CACHE;
+
+       fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, NULL, 0);
+}
+
+static u32 fsl_sata_rw_cmd_ext(int dev, u32 start, u32 blkcnt, u8 *buffer, int is_write)
+{
+       fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
+       struct sata_fis_h2d h2d;
+       struct cfis *cfis;
+       u64 block;
+
+       block = (u64)start;
+       cfis = (struct cfis *)&h2d;
+
+       memset((void *)cfis, 0, sizeof(struct cfis));
+
+       cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
+       cfis->pm_port_c = 0x80; /* is command */
+
+       cfis->command = (is_write) ? ATA_CMD_WRITE_DMA_EXT
+                                : ATA_CMD_READ_DMA_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;
+}
+
+u32 fsl_sata_rw_ncq_cmd(int dev, u32 start, u32 blkcnt, u8 *buffer, int is_write)
+{
+       fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
+       struct sata_fis_h2d h2d;
+       struct cfis *cfis;
+       int ncq_channel;
+       u64 block;
+
+       if (sata_dev_desc[dev].lba48 != 1) {
+               printf("execute FPDMA command on non-LBA48 hard disk\n\r");
+               return -1;
+       }
+
+       block = (u64)start;
+       cfis = (struct cfis *)&h2d;
+
+       memset((void *)cfis, 0, sizeof(struct cfis));
+
+       cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
+       cfis->pm_port_c = 0x80; /* is command */
+
+       cfis->command = (is_write) ? ATA_CMD_WRITE_FPDMA_QUEUED
+                                : ATA_CMD_READ_FPDMA_QUEUED;
+
+       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;
+}
+
+void fsl_sata_flush_cache_ext(int dev)
+{
+       fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
+       struct sata_fis_h2d h2d;
+       struct cfis *cfis;
+
+       cfis = (struct cfis *)&h2d;
+
+       memset((void *)cfis, 0, sizeof(struct cfis));
+
+       cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
+       cfis->pm_port_c = 0x80; /* is command */
+       cfis->command = ATA_CMD_FLUSH_CACHE_EXT;
+
+       fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, NULL, 0);
+}
+
+/* Software reset, set SRST of the Device Control register */
+void fsl_sata_software_reset(int dev)
+{
+       return;
+}
+
+static void fsl_sata_init_wcache(int dev, u16 *id)
+{
+       fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
+
+       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 int fsl_sata_get_wcache(int dev)
+{
+       fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
+       return sata->wcache;
+}
+
+static int fsl_sata_get_flush(int dev)
+{
+       fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
+       return sata->flush;
+}
+
+static int fsl_sata_get_flush_ext(int dev)
+{
+       fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
+       return sata->flush_ext;
+}
+
+u32 ata_low_level_rw_lba48(int dev, u32 blknr, u32 blkcnt, 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 (fsl_sata_info[dev].flags != FLAGS_FPDMA)
+                               fsl_sata_rw_cmd_ext(dev, start, max_blks, addr, is_write);
+                       else
+                               fsl_sata_rw_ncq_cmd(dev, start, max_blks, addr, is_write);
+                       start += max_blks;
+                       blks -= max_blks;
+                       addr += ATA_SECT_SIZE * max_blks;
+               } else {
+                       if (fsl_sata_info[dev].flags != FLAGS_FPDMA)
+                               fsl_sata_rw_cmd_ext(dev, start, blks, addr, is_write);
+                       else
+                               fsl_sata_rw_ncq_cmd(dev, start, blks, addr, is_write);
+                       start += blks;
+                       blks = 0;
+                       addr += ATA_SECT_SIZE * blks;
+               }
+       } while (blks != 0);
+
+       return blkcnt;
+}
+
+u32 ata_low_level_rw_lba28(int dev, u32 blknr, u32 blkcnt, 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(dev, start, max_blks, addr, is_write);
+                       start += max_blks;
+                       blks -= max_blks;
+                       addr += ATA_SECT_SIZE * max_blks;
+               } else {
+                       fsl_sata_rw_cmd(dev, start, blks, addr, is_write);
+                       start += blks;
+                       blks = 0;
+                       addr += ATA_SECT_SIZE * blks;
+               }
+       } while (blks != 0);
+
+       return blkcnt;
+}
+
+/*
+ * SATA interface between low level driver and command layer
+ */
+ulong sata_read(int dev, u32 blknr, u32 blkcnt, void *buffer)
+{
+       u32 rc;
+
+       if (sata_dev_desc[dev].lba48)
+               rc = ata_low_level_rw_lba48(dev, blknr, blkcnt, buffer, READ_CMD);
+       else
+               rc = ata_low_level_rw_lba28(dev, blknr, blkcnt, buffer, READ_CMD);
+       return rc;
+}
+
+ulong sata_write(int dev, u32 blknr, u32 blkcnt, void *buffer)
+{
+       u32 rc;
+
+       if (sata_dev_desc[dev].lba48) {
+               rc = ata_low_level_rw_lba48(dev, blknr, blkcnt, buffer, WRITE_CMD);
+               if (fsl_sata_get_wcache(dev) && fsl_sata_get_flush_ext(dev))
+                       fsl_sata_flush_cache_ext(dev);
+       } else {
+               rc = ata_low_level_rw_lba28(dev, blknr, blkcnt, buffer, WRITE_CMD);
+               if (fsl_sata_get_wcache(dev) && fsl_sata_get_flush(dev))
+                       fsl_sata_flush_cache(dev);
+       }
+       return rc;
+}
+
+int scan_sata(int dev)
+{
+       fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
+       unsigned char serial[ATA_ID_SERNO_LEN + 1];
+       unsigned char firmware[ATA_ID_FW_REV_LEN + 1];
+       unsigned char product[ATA_ID_PROD_LEN + 1];
+       u16 *id;
+       u64 n_sectors;
+
+       /* if no detected link */
+       if (!sata->link)
+               return -1;
+
+       id = (u16 *)malloc(ATA_ID_WORDS * 2);
+       if (!id) {
+               printf("id malloc failed\n\r");
+               return -1;
+       }
+
+       /* Identify device to get information */
+       fsl_sata_identify(dev, id);
+
+       /* Serial number */
+       ata_id_c_string(id, serial, ATA_ID_SERNO, sizeof(serial));
+       memcpy(sata_dev_desc[dev].product, serial, sizeof(serial));
+
+       /* Firmware version */
+       ata_id_c_string(id, firmware, ATA_ID_FW_REV, sizeof(firmware));
+       memcpy(sata_dev_desc[dev].revision, firmware, sizeof(firmware));
+
+       /* Product model */
+       ata_id_c_string(id, product, ATA_ID_PROD, sizeof(product));
+       memcpy(sata_dev_desc[dev].vendor, product, sizeof(product));
+
+       /* Totoal sectors */
+       n_sectors = ata_id_n_sectors(id);
+       sata_dev_desc[dev].lba = (u32)n_sectors;
+
+       /* Check if support LBA48 */
+       if (ata_id_has_lba48(id)) {
+               sata_dev_desc[dev].lba48 = 1;
+               debug("Device support LBA48\n\r");
+       }
+
+       /* 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(dev, id);
+
+       /* Get the write cache status from device */
+       fsl_sata_init_wcache(dev, id);
+
+       /* Set the xfer mode to highest speed */
+       fsl_sata_set_features(dev);
+#ifdef DEBUG
+       fsl_sata_identify(dev, id);
+       ata_dump_id(id);
+#endif
+       free((void *)id);
+       return 0;
+}
diff --git a/drivers/block/fsl_sata.h b/drivers/block/fsl_sata.h
new file mode 100644 (file)
index 0000000..874c0dc
--- /dev/null
@@ -0,0 +1,374 @@
+/*
+ * Copyright (C) 2007-2008 Freescale Semiconductor, Inc.
+ *             Dave Liu <daveliu@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __FSL_SATA_H__
+#define __FSL_SATA_H__
+
+#define SATA_HC_MAX_NUM                4 /* Max host controller numbers */
+#define SATA_HC_MAX_CMD                16 /* Max command queue depth per host controller */
+#define SATA_HC_MAX_PORT       16 /* Max port number per host controller */
+
+/*
+* SATA Host Controller Registers
+*/
+typedef struct fsl_sata_reg {
+       /* SATA command registers */
+       u32 cqr;                /* Command queue register */
+       u8 res1[0x4];
+       u32 car;                /* Command active register */
+       u8 res2[0x4];
+       u32 ccr;                /* Command completed register */
+       u8 res3[0x4];
+       u32 cer;                /* Command error register */
+       u8 res4[0x4];
+       u32 der;                /* Device error register */
+       u32 chba;               /* Command header base address */
+       u32 hstatus;            /* Host status register */
+       u32 hcontrol;           /* Host control register */
+       u32 cqpmp;              /* Port number queue register */
+       u32 sig;                /* Signature register */
+       u32 icc;                /* Interrupt coalescing control register */
+       u8 res5[0xc4];
+
+       /* SATA supperset registers */
+       u32 sstatus;            /* SATA interface status register */
+       u32 serror;             /* SATA interface error register */
+       u32 scontrol;           /* SATA interface control register */
+       u32 snotification;      /* SATA interface notification register */
+       u8 res6[0x30];
+
+       /* SATA control status registers */
+       u32 transcfg;           /* Transport layer configuration */
+       u32 transstatus;        /* Transport layer status */
+       u32 linkcfg;            /* Link layer configuration */
+       u32 linkcfg1;           /* Link layer configuration1 */
+       u32 linkcfg2;           /* Link layer configuration2 */
+       u32 linkstatus;         /* Link layer status */
+       u32 linkstatus1;        /* Link layer status1 */
+       u32 phyctrlcfg;         /* PHY control configuration */
+       u8 res7[0x2b0];
+
+       /* SATA system control registers */
+       u32 syspr;              /* System priority register - big endian */
+       u8 res8[0xbec];
+} __attribute__ ((packed)) fsl_sata_reg_t;
+
+/* HStatus register
+*/
+#define HSTATUS_ONOFF                  0x80000000 /* Online/offline status */
+#define HSTATUS_FORCE_OFFLINE          0x40000000 /* In process going offline */
+#define HSTATUS_BIST_ERR               0x20000000
+
+/* Fatal error */
+#define HSTATUS_MASTER_ERR             0x00004000
+#define HSTATUS_DATA_UNDERRUN          0x00002000
+#define HSTATUS_DATA_OVERRUN           0x00001000
+#define HSTATUS_CRC_ERR_TX             0x00000800
+#define HSTATUS_CRC_ERR_RX             0x00000400
+#define HSTATUS_FIFO_OVERFLOW_TX       0x00000200
+#define HSTATUS_FIFO_OVERFLOW_RX       0x00000100
+#define HSTATUS_FATAL_ERR_ALL          (HSTATUS_MASTER_ERR | \
+                                       HSTATUS_DATA_UNDERRUN | \
+                                       HSTATUS_DATA_OVERRUN | \
+                                       HSTATUS_CRC_ERR_TX | \
+                                       HSTATUS_CRC_ERR_RX | \
+                                       HSTATUS_FIFO_OVERFLOW_TX | \
+                                       HSTATUS_FIFO_OVERFLOW_RX)
+/* Interrupt status */
+#define HSTATUS_FATAL_ERR              0x00000020
+#define HSTATUS_PHY_RDY                        0x00000010
+#define HSTATUS_SIGNATURE              0x00000008
+#define HSTATUS_SNOTIFY                        0x00000004
+#define HSTATUS_DEVICE_ERR             0x00000002
+#define HSTATUS_CMD_COMPLETE           0x00000001
+
+/* HControl register
+*/
+#define HCONTROL_ONOFF                 0x80000000 /* Online or offline request */
+#define HCONTROL_FORCE_OFFLINE         0x40000000 /* Force offline request */
+#define HCONTROL_HDR_SNOOP             0x00000400 /* Command header snoop */
+#define HCONTROL_PMP_ATTACHED          0x00000200 /* Port multiplier attached */
+
+/* Interrupt enable */
+#define HCONTROL_FATAL_ERR             0x00000020
+#define HCONTROL_PHY_RDY               0x00000010
+#define HCONTROL_SIGNATURE             0x00000008
+#define HCONTROL_SNOTIFY               0x00000004
+#define HCONTROL_DEVICE_ERR            0x00000002
+#define HCONTROL_CMD_COMPLETE          0x00000001
+
+#define HCONTROL_INT_EN_ALL            (HCONTROL_FATAL_ERR | \
+                                       HCONTROL_PHY_RDY | \
+                                       HCONTROL_SIGNATURE | \
+                                       HCONTROL_SNOTIFY | \
+                                       HCONTROL_DEVICE_ERR | \
+                                       HCONTROL_CMD_COMPLETE)
+
+/* SStatus register
+*/
+#define SSTATUS_IPM_MASK               0x00000780
+#define SSTATUS_IPM_NOPRESENT          0x00000000
+#define SSTATUS_IPM_ACTIVE             0x00000080
+#define SSTATUS_IPM_PATIAL             0x00000100
+#define SSTATUS_IPM_SLUMBER            0x00000300
+
+#define SSTATUS_SPD_MASK               0x000000f0
+#define SSTATUS_SPD_GEN1               0x00000010
+#define SSTATUS_SPD_GEN2               0x00000020
+
+#define SSTATUS_DET_MASK               0x0000000f
+#define SSTATUS_DET_NODEVICE           0x00000000
+#define SSTATUS_DET_DISCONNECT         0x00000001
+#define SSTATUS_DET_CONNECT            0x00000003
+#define SSTATUS_DET_PHY_OFFLINE                0x00000004
+
+/* SControl register
+*/
+#define SCONTROL_SPM_MASK              0x0000f000
+#define SCONTROL_SPM_GO_PARTIAL                0x00001000
+#define SCONTROL_SPM_GO_SLUMBER                0x00002000
+#define SCONTROL_SPM_GO_ACTIVE         0x00004000
+
+#define SCONTROL_IPM_MASK              0x00000f00
+#define SCONTROL_IPM_NO_RESTRICT       0x00000000
+#define SCONTROL_IPM_PARTIAL           0x00000100
+#define SCONTROL_IPM_SLUMBER           0x00000200
+#define SCONTROL_IPM_PART_SLUM         0x00000300
+
+#define SCONTROL_SPD_MASK              0x000000f0
+#define SCONTROL_SPD_NO_RESTRICT       0x00000000
+#define SCONTROL_SPD_GEN1              0x00000010
+#define SCONTROL_SPD_GEN2              0x00000020
+
+#define SCONTROL_DET_MASK              0x0000000f
+#define SCONTROL_DET_HRESET            0x00000001
+#define SCONTROL_DET_DISABLE           0x00000004
+
+/* TransCfg register
+*/
+#define TRANSCFG_DFIS_SIZE_SHIFT       16
+#define TRANSCFG_RX_WATER_MARK_MASK    0x0000001f
+
+/* PhyCtrlCfg register
+*/
+#define PHYCTRLCFG_FPRFTI_MASK         0x00000018
+#define PHYCTRLCFG_LOOPBACK_MASK       0x0000000e
+
+/*
+* Command Header Entry
+*/
+typedef struct cmd_hdr_entry {
+       u32 cda;                /* Command Descriptor Address, 4 bytes aligned */
+       u32 prde_fis_len;       /* Number of PRD entries and FIS length */
+       u32 ttl;                /* Total transfer length */
+       u32 attribute;          /* the attribute of command */
+} __attribute__ ((packed)) cmd_hdr_entry_t;
+
+#define SATA_HC_CMD_HDR_ENTRY_SIZE     sizeof(struct cmd_hdr_entry)
+
+/* cda
+*/
+#define CMD_HDR_CDA_ALIGN      4
+
+/* prde_fis_len
+*/
+#define CMD_HDR_PRD_ENTRY_SHIFT        16
+#define CMD_HDR_PRD_ENTRY_MASK 0x003f0000
+#define CMD_HDR_FIS_LEN_SHIFT  2
+
+/* attribute
+*/
+#define CMD_HDR_ATTR_RES       0x00000800 /* Reserved bit, should be 1 */
+#define CMD_HDR_ATTR_VBIST     0x00000400 /* Vendor BIST */
+#define CMD_HDR_ATTR_SNOOP     0x00000200 /* Snoop enable for all descriptor */
+#define CMD_HDR_ATTR_FPDMA     0x00000100 /* FPDMA queued command */
+#define CMD_HDR_ATTR_RESET     0x00000080 /* Reset - a SRST or device reset */
+#define CMD_HDR_ATTR_BIST      0x00000040 /* BIST - require the host to enter BIST mode */
+#define CMD_HDR_ATTR_ATAPI     0x00000020 /* ATAPI command */
+#define CMD_HDR_ATTR_TAG       0x0000001f /* TAG mask */
+
+/* command type
+*/
+enum cmd_type {
+       CMD_VENDOR_BIST,
+       CMD_BIST,
+       CMD_RESET,      /* SRST or device reset */
+       CMD_ATAPI,
+       CMD_NCQ,
+       CMD_ATA,        /* None of all above */
+};
+
+/*
+* Command Header Table
+*/
+typedef struct cmd_hdr_tbl {
+       cmd_hdr_entry_t cmd_slot[SATA_HC_MAX_CMD];
+} __attribute__ ((packed)) cmd_hdr_tbl_t;
+
+#define SATA_HC_CMD_HDR_TBL_SIZE       sizeof(struct cmd_hdr_tbl)
+#define SATA_HC_CMD_HDR_TBL_ALIGN      4
+
+/*
+* PRD entry - Physical Region Descriptor entry
+*/
+typedef struct prd_entry {
+       u32 dba;        /* Data base address, 4 bytes aligned */
+       u32 res1;
+       u32 res2;
+       u32 ext_c_ddc;  /* Indirect PRD flags, snoop and data word count */
+} __attribute__ ((packed)) prd_entry_t;
+
+#define SATA_HC_CMD_DESC_PRD_SIZE      sizeof(struct prd_entry)
+
+/* dba
+*/
+#define PRD_ENTRY_DBA_ALIGN    4
+
+/* ext_c_ddc
+*/
+#define PRD_ENTRY_EXT          0x80000000 /* extension flag or called indirect descriptor flag */
+#define PRD_ENTRY_DATA_SNOOP   0x00400000 /* Snoop enable for all data associated with the PRD entry */
+#define PRD_ENTRY_LEN_MASK     0x003fffff /* Data word count */
+
+#define PRD_ENTRY_MAX_XFER_SZ  (PRD_ENTRY_LEN_MASK + 1)
+
+/*
+ * This SATA host controller supports a max of 16 direct PRD entries, but if use
+ * chained indirect PRD entries, then the contollers supports upto a max of 63
+ * entries including direct and indirect PRD entries.
+ * The PRDT is an array of 63 PRD entries contigiously, but the PRD entries#15
+ * will be setup as an indirect descriptor, pointing to it's next (contigious)
+ * PRD entries#16.
+ */
+#define SATA_HC_MAX_PRD                63 /* Max PRD entry numbers per command */
+#define SATA_HC_MAX_PRD_DIRECT 16 /* Direct PRDT entries */
+#define SATA_HC_MAX_PRD_USABLE (SATA_HC_MAX_PRD - 1)
+#define SATA_HC_MAX_XFER_LEN   0x4000000
+
+/*
+* PRDT - Physical Region Descriptor Table
+*/
+typedef struct prdt {
+       prd_entry_t prdt[SATA_HC_MAX_PRD];
+} __attribute__ ((packed)) prdt_t;
+
+/*
+* Command Descriptor
+*/
+#define SATA_HC_CMD_DESC_CFIS_SIZE     32 /* bytes */
+#define SATA_HC_CMD_DESC_SFIS_SIZE     32 /* bytes */
+#define SATA_HC_CMD_DESC_ACMD_SIZE     16 /* bytes */
+#define SATA_HC_CMD_DESC_RES           16 /* bytes */
+
+typedef struct cmd_desc {
+       u8 cfis[SATA_HC_CMD_DESC_CFIS_SIZE];
+       u8 sfis[SATA_HC_CMD_DESC_SFIS_SIZE];
+       u8 acmd[SATA_HC_CMD_DESC_ACMD_SIZE];
+       u8 res[SATA_HC_CMD_DESC_RES];
+       prd_entry_t prdt[SATA_HC_MAX_PRD];
+} __attribute__ ((packed)) cmd_desc_t;
+
+#define SATA_HC_CMD_DESC_SIZE          sizeof(struct cmd_desc)
+#define SATA_HC_CMD_DESC_ALIGN         4
+
+/*
+* CFIS - Command FIS, which is H2D register FIS, the struct defination
+* of Non-Queued command is different than NCQ command. see them is sata2.h
+*/
+typedef struct cfis {
+       u8 fis_type;
+       u8 pm_port_c;
+       u8 command;
+       u8 features;
+       u8 lba_low;
+       u8 lba_mid;
+       u8 lba_high;
+       u8 device;
+       u8 lba_low_exp;
+       u8 lba_mid_exp;
+       u8 lba_high_exp;
+       u8 features_exp;
+       u8 sector_count;
+       u8 sector_count_exp;
+       u8 res1;
+       u8 control;
+       u8 res2[4];
+} __attribute__ ((packed)) cfis_t;
+
+/*
+* SFIS - Status FIS, which is D2H register FIS.
+*/
+typedef struct sfis {
+       u8 fis_type;
+       u8 pm_port_i;
+       u8 status;
+       u8 error;
+       u8 lba_low;
+       u8 lba_mid;
+       u8 lba_high;
+       u8 device;
+       u8 lba_low_exp;
+       u8 lba_mid_exp;
+       u8 lba_high_exp;
+       u8 res1;
+       u8 sector_count;
+       u8 sector_count_exp;
+       u8 res2[2];
+       u8 res3[4];
+} __attribute__ ((packed)) sfis_t;
+
+/*
+ * SATA device driver info
+ */
+typedef struct fsl_sata_info {
+       u32     sata_reg_base;
+       u32     flags;
+} fsl_sata_info_t;
+
+#define FLAGS_DMA      0x00000000
+#define FLAGS_FPDMA    0x00000001
+
+/*
+ * SATA device driver struct
+ */
+typedef struct fsl_sata {
+       char            name[12];
+       fsl_sata_reg_t  *reg_base;              /* the base address of controller register */
+       void            *cmd_hdr_tbl_offset;    /* alloc address of command header table */
+       cmd_hdr_tbl_t   *cmd_hdr;               /* aligned address of command header table */
+       void            *cmd_desc_offset;       /* alloc address of command descriptor */
+       cmd_desc_t      *cmd_desc;              /* aligned address of command descriptor */
+       int             link;                   /* PHY link status */
+       /* device attribute */
+       int             ata_device_type;        /* device type */
+       int             lba48;
+       int             queue_depth;            /* Max NCQ queue depth */
+       u16             pio;
+       u16             mwdma;
+       u16             udma;
+       int             wcache;
+       int             flush;
+       int             flush_ext;
+} fsl_sata_t;
+
+#define READ_CMD       0
+#define WRITE_CMD      1
+
+#endif /* __FSL_SATA_H__ */