diff options
| -rw-r--r-- | drivers/ata/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/ata/Makefile | 1 | ||||
| -rw-r--r-- | drivers/ata/fsl_ahci.c | 1030 | ||||
| -rw-r--r-- | drivers/ata/fsl_sata.h | 1 |
4 files changed, 1042 insertions, 0 deletions
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index 4e95a68..87636ae 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -59,6 +59,16 @@ config DWC_AHCI Enable this driver to support Sata devices through Synopsys DWC AHCI module. +config FSL_AHCI + bool "Enable Freescale AHCI driver support" + select SCSI_AHCI + depends on AHCI + depends on DM_SCSI + help + Enable this driver to support Sata devices found in + some Freescale PowerPC SoCs. + + config DWC_AHSATA bool "Enable DWC AHSATA driver support" select LIBATA diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile index a69edb1..6e03384 100644 --- a/drivers/ata/Makefile +++ b/drivers/ata/Makefile @@ -4,6 +4,7 @@ # Wolfgang Denk, DENX Software Engineering, wd@denx.de. obj-$(CONFIG_DWC_AHCI) += dwc_ahci.o +obj-$(CONFIG_FSL_AHCI) += fsl_ahci.o obj-$(CONFIG_AHCI) += ahci-uclass.o obj-$(CONFIG_AHCI_PCI) += ahci-pci.o obj-$(CONFIG_SCSI_AHCI) += ahci.o diff --git a/drivers/ata/fsl_ahci.c b/drivers/ata/fsl_ahci.c new file mode 100644 index 0000000..d04cff3 --- /dev/null +++ b/drivers/ata/fsl_ahci.c @@ -0,0 +1,1030 @@ +// 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), +}; diff --git a/drivers/ata/fsl_sata.h b/drivers/ata/fsl_sata.h index 1e2da10..a4ee83d 100644 --- a/drivers/ata/fsl_sata.h +++ b/drivers/ata/fsl_sata.h @@ -312,6 +312,7 @@ typedef struct fsl_sata { int wcache; int flush; int flush_ext; + u32 dma_flag; } fsl_sata_t; #define READ_CMD 0 |