+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * NXP PPC SATA platform driver
- *
- * (C) Copyright 2019 NXP, Inc.
- *
- */
-#include <common.h>
-#include <cpu_func.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 / blobdiff