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