sata: Move drivers into new drivers/ata directory

At present we have the SATA and PATA drivers mixed up in the drivers/block
directory. It is better to split them out into their own place. Use
drivers/ata which is what Linux does.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

1 files changed, 0 insertions, 854 deletions

diff --git a/drivers/block/fsl_sata.c b/drivers/block/fsl_sata.c
deleted file mode 100644
index 31f7fab..0000000
--- a/drivers/block/fsl_sata.c
+++ /dev/null
@@ -1,854 +0,0 @@
-/*
- * Copyright (C) 2008,2010 Freescale Semiconductor, Inc.
- *		Dave Liu <daveliu@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <common.h>
-#include <command.h>
-#include <console.h>
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/fsl_serdes.h>
-#include <malloc.h>
-#include <libata.h>
-#include <fis.h>
-#include <sata.h>
-#include "fsl_sata.h"
-
-#ifndef CONFIG_SYS_SATA1_FLAGS
-	#define CONFIG_SYS_SATA1_FLAGS	FLAGS_DMA
-#endif
-#ifndef CONFIG_SYS_SATA2_FLAGS
-	#define CONFIG_SYS_SATA2_FLAGS	FLAGS_DMA
-#endif
-
-static struct fsl_sata_info fsl_sata_info[] = {
-#ifdef CONFIG_SATA1
-	{CONFIG_SYS_SATA1, CONFIG_SYS_SATA1_FLAGS},
-#else
-	{0, 0},
-#endif
-#ifdef CONFIG_SATA2
-	{CONFIG_SYS_SATA2, CONFIG_SYS_SATA2_FLAGS},
-#else
-	{0, 0},
-#endif
-};
-
-static inline void sdelay(unsigned long sec)
-{
-	unsigned long i;
-	for (i = 0; i < sec; i++)
-		mdelay(1000);
-}
-
-static void fsl_sata_dump_sfis(struct sata_fis_d2h *s)
-{
-	printf("Status FIS dump:\n\r");
-	printf("fis_type:		%02x\n\r", s->fis_type);
-	printf("pm_port_i:		%02x\n\r", s->pm_port_i);
-	printf("status:			%02x\n\r", s->status);
-	printf("error:			%02x\n\r", s->error);
-	printf("lba_low:		%02x\n\r", s->lba_low);
-	printf("lba_mid:		%02x\n\r", s->lba_mid);
-	printf("lba_high:		%02x\n\r", s->lba_high);
-	printf("device:			%02x\n\r", s->device);
-	printf("lba_low_exp:		%02x\n\r", s->lba_low_exp);
-	printf("lba_mid_exp:		%02x\n\r", s->lba_mid_exp);
-	printf("lba_high_exp:		%02x\n\r", s->lba_high_exp);
-	printf("res1:			%02x\n\r", s->res1);
-	printf("sector_count:		%02x\n\r", s->sector_count);
-	printf("sector_count_exp:	%02x\n\r", s->sector_count_exp);
-}
-
-static int ata_wait_register(unsigned __iomem *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 __iomem *reg;
-	u32 sig;
-	int i;
-	fsl_sata_t *sata;
-
-	if (dev < 0 || dev > (CONFIG_SYS_SATA_MAX_DEVICE - 1)) {
-		printf("the sata index %d is out of ranges\n\r", dev);
-		return -1;
-	}
-
-#ifdef CONFIG_MPC85xx
-	if ((dev == 0) && (!is_serdes_configured(SATA1))) {
-		printf("SATA%d [dev = %d] is not enabled\n", dev+1, dev);
-		return -1;
-	}
-	if ((dev == 1) && (!is_serdes_configured(SATA2))) {
-		printf("SATA%d [dev = %d] is not enabled\n", dev+1, dev);
-		return -1;
-	}
-#endif
-
-	/* Allocate SATA device driver struct */
-	sata = (fsl_sata_t *)malloc(sizeof(fsl_sata_t));
-	if (!sata) {
-		printf("alloc the sata device struct failed\n\r");
-		return -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;
-
-	snprintf(sata->name, 12, "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->cmd_hdr_tbl_offset) {
-		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);
-
-	/* Wait PHY RDY signal changed for 500ms */
-	ata_wait_register(&reg->hstatus, HSTATUS_PHY_RDY,
-			  HSTATUS_PHY_RDY, 500);
-
-	/* Check PHYRDY */
-	val32 = in_le32(&reg->hstatus);
-	if (val32 & HSTATUS_PHY_RDY) {
-		sata->link = 1;
-	} else {
-		sata->link = 0;
-		printf("(No RDY)\n\r");
-		return -1;
-	}
-
-	/* Wait for signature updated, which is 1st D2H */
-	ata_wait_register(&reg->hstatus, HSTATUS_SIGNATURE,
-			  HSTATUS_SIGNATURE, 10000);
-
-	if (val32 & HSTATUS_SIGNATURE) {
-		sig = in_le32(&reg->sig);
-		debug("Signature updated, the sig =%08x\n\r", sig);
-		sata->ata_device_type = ata_dev_classify(sig);
-	}
-
-	/* Check the speed */
-	val32 = in_le32(&reg->sstatus);
-	if ((val32 & SSTATUS_SPD_MASK) == SSTATUS_SPD_GEN1)
-		printf("(1.5 Gbps)\n\r");
-	else if ((val32 & SSTATUS_SPD_MASK) == SSTATUS_SPD_GEN2)
-		printf("(3 Gbps)\n\r");
-
-	return 0;
-}
-
-int reset_sata(int dev)
-{
-	return 0;
-}
-
-static void fsl_sata_dump_regs(fsl_sata_reg_t __iomem *reg)
-{
-	printf("\n\rSATA:           %08x\n\r", (u32)reg);
-	printf("CQR:            %08x\n\r", in_le32(&reg->cqr));
-	printf("CAR:            %08x\n\r", in_le32(&reg->car));
-	printf("CCR:            %08x\n\r", in_le32(&reg->ccr));
-	printf("CER:            %08x\n\r", in_le32(&reg->cer));
-	printf("CQR:            %08x\n\r", in_le32(&reg->cqr));
-	printf("DER:            %08x\n\r", in_le32(&reg->der));
-	printf("CHBA:           %08x\n\r", in_le32(&reg->chba));
-	printf("HStatus:        %08x\n\r", in_le32(&reg->hstatus));
-	printf("HControl:       %08x\n\r", in_le32(&reg->hcontrol));
-	printf("CQPMP:          %08x\n\r", in_le32(&reg->cqpmp));
-	printf("SIG:            %08x\n\r", in_le32(&reg->sig));
-	printf("ICC:            %08x\n\r", in_le32(&reg->icc));
-	printf("SStatus:        %08x\n\r", in_le32(&reg->sstatus));
-	printf("SError:         %08x\n\r", in_le32(&reg->serror));
-	printf("SControl:       %08x\n\r", in_le32(&reg->scontrol));
-	printf("SNotification:  %08x\n\r", in_le32(&reg->snotification));
-	printf("TransCfg:       %08x\n\r", in_le32(&reg->transcfg));
-	printf("TransStatus:    %08x\n\r", in_le32(&reg->transstatus));
-	printf("LinkCfg:        %08x\n\r", in_le32(&reg->linkcfg));
-	printf("LinkCfg1:       %08x\n\r", in_le32(&reg->linkcfg1));
-	printf("LinkCfg2:       %08x\n\r", in_le32(&reg->linkcfg2));
-	printf("LinkStatus:     %08x\n\r", in_le32(&reg->linkstatus));
-	printf("LinkStatus1:    %08x\n\r", in_le32(&reg->linkstatus1));
-	printf("PhyCtrlCfg:     %08x\n\r", in_le32(&reg->phyctrlcfg));
-	printf("SYSPR:          %08x\n\r", in_be32(&reg->syspr));
-}
-
-static int fsl_ata_exec_ata_cmd(struct fsl_sata *sata, struct sata_fis_h2d *cfis,
-				int is_ncq, int tag, u8 *buffer, u32 len)
-{
-	cmd_hdr_entry_t *cmd_hdr;
-	cmd_desc_t *cmd_desc;
-	sata_fis_h2d_t *h2d;
-	prd_entry_t *prde;
-	u32 ext_c_ddc;
-	u32 prde_count;
-	u32 val32;
-	u32 ttl;
-	fsl_sata_reg_t __iomem *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 command issue */
-	sync();
-
-	/* PMP*/
-	val32 = (u32)(h2d->pm_port_c & 0x0f);
-	out_le32(&reg->cqpmp, val32);
-
-	/* Wait no active */
-	if (ata_wait_register(&reg->car, (1 << tag), 0, 10000))
-		printf("Wait no active time out\n\r");
-
-	/* Issue command */
-	if (!(in_le32(&reg->cqr) & (1 << tag))) {
-		val32 = 1 << tag;
-		out_le32(&reg->cqr, val32);
-	}
-
-	/* Wait command completed for 10s */
-	if (ata_wait_register(&reg->ccr, (1 << tag), (1 << tag), 10000)) {
-		if (!is_ncq)
-			printf("Non-NCQ command time out\n\r");
-		else
-			printf("NCQ command time out\n\r");
-	}
-
-	val32 = in_le32(&reg->cer);
-
-	if (val32) {
-		u32 der;
-		fsl_sata_dump_sfis((struct sata_fis_d2h *)cmd_desc->sfis);
-		printf("CE at device\n\r");
-		fsl_sata_dump_regs(reg);
-		der = in_le32(&reg->der);
-		out_le32(&reg->cer, val32);
-		out_le32(&reg->der, der);
-	}
-
-	/* Clear complete flags */
-	val32 = in_le32(&reg->ccr);
-	out_le32(&reg->ccr, val32);
-
-	return len;
-}
-
-static int fsl_ata_exec_reset_cmd(struct fsl_sata *sata, struct sata_fis_h2d *cfis,
-				 int tag, u8 *buffer, u32 len)
-{
-	return 0;
-}
-
-static int fsl_sata_exec_cmd(struct fsl_sata *sata, struct sata_fis_h2d *cfis,
-		 enum cmd_type command_type, int tag, u8 *buffer, u32 len)
-{
-	int rc;
-
-	if (tag > SATA_HC_MAX_CMD || tag < 0) {
-		printf("tag is out of range, tag=%d\n\r", tag);
-		return -1;
-	}
-
-	switch (command_type) {
-	case CMD_ATA:
-		rc = fsl_ata_exec_ata_cmd(sata, cfis, 0, tag, buffer, len);
-		return rc;
-	case CMD_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, *cfis = &h2d;
-
-	memset(cfis, 0, sizeof(struct sata_fis_h2d));
-
-	cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
-	cfis->pm_port_c = 0x80; /* is command */
-	cfis->command = ATA_CMD_ID_ATA;
-
-	fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, (u8 *)id, ATA_ID_WORDS * 2);
-	ata_swap_buf_le16(id, ATA_ID_WORDS);
-}
-
-static void fsl_sata_xfer_mode(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, *cfis = &h2d;
-	u8 udma_cap;
-
-	memset(cfis, 0, sizeof(struct sata_fis_h2d));
-
-	cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
-	cfis->pm_port_c = 0x80; /* is command */
-	cfis->command = ATA_CMD_SET_FEATURES;
-	cfis->features = SETFEATURES_XFER;
-
-	/* First check the device capablity */
-	udma_cap = (u8)(sata->udma & 0xff);
-	debug("udma_cap %02x\n\r", udma_cap);
-
-	if (udma_cap == ATA_UDMA6)
-		cfis->sector_count = XFER_UDMA_6;
-	if (udma_cap == ATA_UDMA5)
-		cfis->sector_count = XFER_UDMA_5;
-	if (udma_cap == ATA_UDMA4)
-		cfis->sector_count = XFER_UDMA_4;
-	if (udma_cap == ATA_UDMA3)
-		cfis->sector_count = XFER_UDMA_3;
-
-	fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, NULL, 0);
-}
-
-static u32 fsl_sata_rw_cmd(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, *cfis = &h2d;
-	u32 block;
-
-	block = start;
-
-	memset(cfis, 0, sizeof(struct sata_fis_h2d));
-
-	cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
-	cfis->pm_port_c = 0x80; /* is command */
-	cfis->command = (is_write) ? ATA_CMD_WRITE : ATA_CMD_READ;
-	cfis->device = ATA_LBA;
-
-	cfis->device |= (block >> 24) & 0xf;
-	cfis->lba_high = (block >> 16) & 0xff;
-	cfis->lba_mid = (block >> 8) & 0xff;
-	cfis->lba_low = block & 0xff;
-	cfis->sector_count = (u8)(blkcnt & 0xff);
-
-	fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, buffer, ATA_SECT_SIZE * blkcnt);
-	return blkcnt;
-}
-
-static void fsl_sata_flush_cache(int dev)
-{
-	fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
-	struct sata_fis_h2d h2d, *cfis = &h2d;
-
-	memset(cfis, 0, sizeof(struct sata_fis_h2d));
-
-	cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
-	cfis->pm_port_c = 0x80; /* is command */
-	cfis->command = ATA_CMD_FLUSH;
-
-	fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, NULL, 0);
-}
-
-static u32 fsl_sata_rw_cmd_ext(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, *cfis = &h2d;
-	u64 block;
-
-	block = (u64)start;
-
-	memset(cfis, 0, sizeof(struct sata_fis_h2d));
-
-	cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
-	cfis->pm_port_c = 0x80; /* is command */
-
-	cfis->command = (is_write) ? ATA_CMD_WRITE_EXT
-				 : ATA_CMD_READ_EXT;
-
-	cfis->lba_high_exp = (block >> 40) & 0xff;
-	cfis->lba_mid_exp = (block >> 32) & 0xff;
-	cfis->lba_low_exp = (block >> 24) & 0xff;
-	cfis->lba_high = (block >> 16) & 0xff;
-	cfis->lba_mid = (block >> 8) & 0xff;
-	cfis->lba_low = block & 0xff;
-	cfis->device = ATA_LBA;
-	cfis->sector_count_exp = (blkcnt >> 8) & 0xff;
-	cfis->sector_count = blkcnt & 0xff;
-
-	fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, buffer, ATA_SECT_SIZE * blkcnt);
-	return blkcnt;
-}
-
-static u32 fsl_sata_rw_ncq_cmd(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, *cfis = &h2d;
-	int ncq_channel;
-	u64 block;
-
-	if (sata->lba48 != 1) {
-		printf("execute FPDMA command on non-LBA48 hard disk\n\r");
-		return -1;
-	}
-
-	block = (u64)start;
-
-	memset(cfis, 0, sizeof(struct sata_fis_h2d));
-
-	cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
-	cfis->pm_port_c = 0x80; /* is command */
-
-	cfis->command = (is_write) ? ATA_CMD_FPDMA_WRITE
-				 : ATA_CMD_FPDMA_READ;
-
-	cfis->lba_high_exp = (block >> 40) & 0xff;
-	cfis->lba_mid_exp = (block >> 32) & 0xff;
-	cfis->lba_low_exp = (block >> 24) & 0xff;
-	cfis->lba_high = (block >> 16) & 0xff;
-	cfis->lba_mid = (block >> 8) & 0xff;
-	cfis->lba_low = block & 0xff;
-
-	cfis->device = ATA_LBA;
-	cfis->features_exp = (blkcnt >> 8) & 0xff;
-	cfis->features = blkcnt & 0xff;
-
-	if (sata->queue_depth >= SATA_HC_MAX_CMD)
-		ncq_channel = SATA_HC_MAX_CMD - 1;
-	else
-		ncq_channel = sata->queue_depth - 1;
-
-	/* Use the latest queue */
-	fsl_sata_exec_cmd(sata, cfis, CMD_NCQ, ncq_channel, buffer, ATA_SECT_SIZE * blkcnt);
-	return blkcnt;
-}
-
-static void fsl_sata_flush_cache_ext(int dev)
-{
-	fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
-	struct sata_fis_h2d h2d, *cfis = &h2d;
-
-	memset(cfis, 0, sizeof(struct sata_fis_h2d));
-
-	cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
-	cfis->pm_port_c = 0x80; /* is command */
-	cfis->command = ATA_CMD_FLUSH_EXT;
-
-	fsl_sata_exec_cmd(sata, cfis, CMD_ATA, 0, NULL, 0);
-}
-
-static 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;
-}
-
-static u32 ata_low_level_rw_lba48(int dev, u32 blknr, lbaint_t blkcnt,
-		const void *buffer, int is_write)
-{
-	u32 start, blks;
-	u8 *addr;
-	int max_blks;
-
-	start = blknr;
-	blks = blkcnt;
-	addr = (u8 *)buffer;
-
-	max_blks = ATA_MAX_SECTORS_LBA48;
-	do {
-		if (blks > max_blks) {
-			if (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;
-}
-
-static u32 ata_low_level_rw_lba28(int dev, u32 blknr, u32 blkcnt,
-				  const void *buffer, int is_write)
-{
-	u32 start, blks;
-	u8 *addr;
-	int max_blks;
-
-	start = blknr;
-	blks = blkcnt;
-	addr = (u8 *)buffer;
-
-	max_blks = ATA_MAX_SECTORS;
-	do {
-		if (blks > max_blks) {
-			fsl_sata_rw_cmd(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, ulong blknr, lbaint_t blkcnt, void *buffer)
-{
-	u32 rc;
-	fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
-
-	if (sata->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, ulong blknr, lbaint_t blkcnt, const void *buffer)
-{
-	u32 rc;
-	fsl_sata_t *sata = (fsl_sata_t *)sata_dev_desc[dev].priv;
-
-	if (sata->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;
-
-#ifdef CONFIG_LBA48
-	/* Check if support LBA48 */
-	if (ata_id_has_lba48(id)) {
-		sata->lba48 = 1;
-		debug("Device support LBA48\n\r");
-	} else
-		debug("Device supports LBA28\n\r");
-#endif
-
-	/* Get the NCQ queue depth from device */
-	sata->queue_depth = ata_id_queue_depth(id);
-
-	/* Get the xfer mode from device */
-	fsl_sata_xfer_mode(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;
-}