* Author: Jason Jin<Jason.jin@freescale.com>
* Zhang Wei<wei.zhang@freescale.com>
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*
* with the reference on libata and ahci drvier in kernel
- *
*/
#include <common.h>
#include <asm/io.h>
#include <malloc.h>
#include <scsi.h>
-#include <ata.h>
+#include <libata.h>
#include <linux/ctype.h>
#include <ahci.h>
+static int ata_io_flush(u8 port);
+
struct ahci_probe_ent *probe_ent = NULL;
-hd_driveid_t *ataid[AHCI_MAX_PORTS];
+u16 *ataid[AHCI_MAX_PORTS];
#define writel_with_flush(a,b) do { writel(a,b); readl(b); } while (0)
#define MAX_SATA_BLOCKS_READ_WRITE 0x80
#endif
-static inline u32 ahci_port_base(u32 base, u32 port)
+/* Maximum timeouts for each event */
+#define WAIT_MS_SPINUP 20000
+#define WAIT_MS_DATAIO 10000
+#define WAIT_MS_FLUSH 5000
+#define WAIT_MS_LINKUP 200
+
+static inline void __iomem *ahci_port_base(void __iomem *base, u32 port)
{
return base + 0x100 + (port * 0x80);
}
-static void ahci_setup_port(struct ahci_ioports *port, unsigned long base,
+static void ahci_setup_port(struct ahci_ioports *port, void __iomem *base,
unsigned int port_idx)
{
base = ahci_port_base(base, port_idx);
#define msleep(a) udelay(a * 1000)
-static int waiting_for_cmd_completed(volatile u8 *offset,
+static void ahci_dcache_flush_range(unsigned long begin, unsigned long len)
+{
+ const unsigned long start = begin;
+ const unsigned long end = start + len;
+
+ debug("%s: flush dcache: [%#lx, %#lx)\n", __func__, start, end);
+ flush_dcache_range(start, end);
+}
+
+/*
+ * SATA controller DMAs to physical RAM. Ensure data from the
+ * controller is invalidated from dcache; next access comes from
+ * physical RAM.
+ */
+static void ahci_dcache_invalidate_range(unsigned long begin, unsigned long len)
+{
+ const unsigned long start = begin;
+ const unsigned long end = start + len;
+
+ debug("%s: invalidate dcache: [%#lx, %#lx)\n", __func__, start, end);
+ invalidate_dcache_range(start, end);
+}
+
+/*
+ * Ensure data for SATA controller is flushed out of dcache and
+ * written to physical memory.
+ */
+static void ahci_dcache_flush_sata_cmd(struct ahci_ioports *pp)
+{
+ ahci_dcache_flush_range((unsigned long)pp->cmd_slot,
+ AHCI_PORT_PRIV_DMA_SZ);
+}
+
+static int waiting_for_cmd_completed(void __iomem *offset,
int timeout_msec,
u32 sign)
{
return (i < timeout_msec) ? 0 : -1;
}
+int __weak ahci_link_up(struct ahci_probe_ent *probe_ent, u8 port)
+{
+ u32 tmp;
+ int j = 0;
+ void __iomem *port_mmio = probe_ent->port[port].port_mmio;
+
+ /*
+ * Bring up SATA link.
+ * SATA link bringup time is usually less than 1 ms; only very
+ * rarely has it taken between 1-2 ms. Never seen it above 2 ms.
+ */
+ while (j < WAIT_MS_LINKUP) {
+ tmp = readl(port_mmio + PORT_SCR_STAT);
+ tmp &= PORT_SCR_STAT_DET_MASK;
+ if (tmp == PORT_SCR_STAT_DET_PHYRDY)
+ return 0;
+ udelay(1000);
+ j++;
+ }
+ return 1;
+}
+
+#ifdef CONFIG_SUNXI_AHCI
+/* The sunxi AHCI controller requires this undocumented setup */
+static void sunxi_dma_init(void __iomem *port_mmio)
+{
+ clrsetbits_le32(port_mmio + PORT_P0DMACR, 0x0000ff00, 0x00004400);
+}
+#endif
+
+int ahci_reset(void __iomem *base)
+{
+ int i = 1000;
+ u32 __iomem *host_ctl_reg = base + HOST_CTL;
+ u32 tmp = readl(host_ctl_reg); /* global controller reset */
+
+ if ((tmp & HOST_RESET) == 0)
+ writel_with_flush(tmp | HOST_RESET, host_ctl_reg);
+
+ /*
+ * reset must complete within 1 second, or
+ * the hardware should be considered fried.
+ */
+ do {
+ udelay(1000);
+ tmp = readl(host_ctl_reg);
+ i--;
+ } while ((i > 0) && (tmp & HOST_RESET));
+
+ if (i == 0) {
+ printf("controller reset failed (0x%x)\n", tmp);
+ return -1;
+ }
+
+ return 0;
+}
static int ahci_host_init(struct ahci_probe_ent *probe_ent)
{
u16 tmp16;
unsigned short vendor;
#endif
- volatile u8 *mmio = (volatile u8 *)probe_ent->mmio_base;
- u32 tmp, cap_save;
- int i, j;
- volatile u8 *port_mmio;
+ void __iomem *mmio = probe_ent->mmio_base;
+ u32 tmp, cap_save, cmd;
+ int i, j, ret;
+ void __iomem *port_mmio;
+ u32 port_map;
debug("ahci_host_init: start\n");
cap_save = readl(mmio + HOST_CAP);
cap_save &= ((1 << 28) | (1 << 17));
- cap_save |= (1 << 27);
+ cap_save |= (1 << 27); /* Staggered Spin-up. Not needed. */
- /* global controller reset */
- tmp = readl(mmio + HOST_CTL);
- if ((tmp & HOST_RESET) == 0)
- writel_with_flush(tmp | HOST_RESET, mmio + HOST_CTL);
-
- /* reset must complete within 1 second, or
- * the hardware should be considered fried.
- */
- i = 1000;
- do {
- udelay(1000);
- tmp = readl(mmio + HOST_CTL);
- if (!i--) {
- debug("controller reset failed (0x%x)\n", tmp);
- return -1;
- }
- } while (tmp & HOST_RESET);
+ ret = ahci_reset(probe_ent->mmio_base);
+ if (ret)
+ return ret;
writel_with_flush(HOST_AHCI_EN, mmio + HOST_CTL);
writel(cap_save, mmio + HOST_CAP);
#endif
probe_ent->cap = readl(mmio + HOST_CAP);
probe_ent->port_map = readl(mmio + HOST_PORTS_IMPL);
+ port_map = probe_ent->port_map;
probe_ent->n_ports = (probe_ent->cap & 0x1f) + 1;
debug("cap 0x%x port_map 0x%x n_ports %d\n",
probe_ent->n_ports = CONFIG_SYS_SCSI_MAX_SCSI_ID;
for (i = 0; i < probe_ent->n_ports; i++) {
- probe_ent->port[i].port_mmio = ahci_port_base((u32) mmio, i);
+ if (!(port_map & (1 << i)))
+ continue;
+ probe_ent->port[i].port_mmio = ahci_port_base(mmio, i);
port_mmio = (u8 *) probe_ent->port[i].port_mmio;
- ahci_setup_port(&probe_ent->port[i], (unsigned long)mmio, i);
+ ahci_setup_port(&probe_ent->port[i], mmio, i);
/* make sure port is not active */
tmp = readl(port_mmio + PORT_CMD);
msleep(500);
}
- debug("Spinning up port %d... ", i);
- writel(PORT_CMD_SPIN_UP, port_mmio + PORT_CMD);
+#ifdef CONFIG_SUNXI_AHCI
+ sunxi_dma_init(port_mmio);
+#endif
+
+ /* Add the spinup command to whatever mode bits may
+ * already be on in the command register.
+ */
+ cmd = readl(port_mmio + PORT_CMD);
+ cmd |= PORT_CMD_SPIN_UP;
+ writel_with_flush(cmd, port_mmio + PORT_CMD);
+
+ /* Bring up SATA link. */
+ ret = ahci_link_up(probe_ent, i);
+ if (ret) {
+ printf("SATA link %d timeout.\n", i);
+ continue;
+ } else {
+ debug("SATA link ok.\n");
+ }
+
+ /* Clear error status */
+ tmp = readl(port_mmio + PORT_SCR_ERR);
+ if (tmp)
+ writel(tmp, port_mmio + PORT_SCR_ERR);
+
+ debug("Spinning up device on SATA port %d... ", i);
j = 0;
- while (j < 1000) {
- tmp = readl(port_mmio + PORT_SCR_STAT);
- if ((tmp & 0xf) == 0x3)
+ while (j < WAIT_MS_SPINUP) {
+ tmp = readl(port_mmio + PORT_TFDATA);
+ if (!(tmp & (ATA_BUSY | ATA_DRQ)))
break;
udelay(1000);
+ tmp = readl(port_mmio + PORT_SCR_STAT);
+ tmp &= PORT_SCR_STAT_DET_MASK;
+ if (tmp == PORT_SCR_STAT_DET_PHYRDY)
+ break;
j++;
}
- if (j == 1000)
+
+ tmp = readl(port_mmio + PORT_SCR_STAT) & PORT_SCR_STAT_DET_MASK;
+ if (tmp == PORT_SCR_STAT_DET_COMINIT) {
+ debug("SATA link %d down (COMINIT received), retrying...\n", i);
+ i--;
+ continue;
+ }
+
+ printf("Target spinup took %d ms.\n", j);
+ if (j == WAIT_MS_SPINUP)
debug("timeout.\n");
else
debug("ok.\n");
writel(1 << i, mmio + HOST_IRQ_STAT);
- /* set irq mask (enables interrupts) */
- writel(DEF_PORT_IRQ, port_mmio + PORT_IRQ_MASK);
-
/* register linkup ports */
tmp = readl(port_mmio + PORT_SCR_STAT);
- debug("Port %d status: 0x%x\n", i, tmp);
- if ((tmp & 0xf) == 0x03)
+ debug("SATA port %d status: 0x%x\n", i, tmp);
+ if ((tmp & PORT_SCR_STAT_DET_MASK) == PORT_SCR_STAT_DET_PHYRDY)
probe_ent->link_port_map |= (0x01 << i);
}
pci_dev_t pdev = probe_ent->dev;
u16 cc;
#endif
- volatile u8 *mmio = (volatile u8 *)probe_ent->mmio_base;
+ void __iomem *mmio = probe_ent->mmio_base;
u32 vers, cap, cap2, impl, speed;
const char *speed_s;
const char *scc_s;
u16 vendor;
int rc;
- memset((void *)ataid, 0, sizeof(hd_driveid_t *) * AHCI_MAX_PORTS);
-
probe_ent = malloc(sizeof(struct ahci_probe_ent));
+ if (!probe_ent) {
+ printf("%s: No memory for probe_ent\n", __func__);
+ return -ENOMEM;
+ }
+
memset(probe_ent, 0, sizeof(struct ahci_probe_ent));
probe_ent->dev = pdev;
probe_ent->pio_mask = 0x1f;
probe_ent->udma_mask = 0x7f; /*Fixme,assume to support UDMA6 */
- pci_read_config_dword(pdev, PCI_BASE_ADDRESS_5, &probe_ent->mmio_base);
- debug("ahci mmio_base=0x%08x\n", probe_ent->mmio_base);
+ probe_ent->mmio_base = pci_map_bar(pdev, PCI_BASE_ADDRESS_5,
+ PCI_REGION_MEM);
+ debug("ahci mmio_base=0x%p\n", probe_ent->mmio_base);
/* Take from kernel:
* JMicron-specific fixup:
for (i = 0; i < sg_count; i++) {
ahci_sg->addr =
- cpu_to_le32((u32) buf + i * MAX_DATA_BYTE_COUNT);
+ cpu_to_le32((unsigned long) buf + i * MAX_DATA_BYTE_COUNT);
ahci_sg->addr_hi = 0;
ahci_sg->flags_size = cpu_to_le32(0x3fffff &
(buf_len < MAX_DATA_BYTE_COUNT
{
pp->cmd_slot->opts = cpu_to_le32(opts);
pp->cmd_slot->status = 0;
- pp->cmd_slot->tbl_addr = cpu_to_le32(pp->cmd_tbl & 0xffffffff);
- pp->cmd_slot->tbl_addr_hi = 0;
+ pp->cmd_slot->tbl_addr = cpu_to_le32((u32)pp->cmd_tbl & 0xffffffff);
+#ifdef CONFIG_PHYS_64BIT
+ pp->cmd_slot->tbl_addr_hi =
+ cpu_to_le32((u32)(((pp->cmd_tbl) >> 16) >> 16));
+#endif
}
static void ahci_set_feature(u8 port)
{
struct ahci_ioports *pp = &(probe_ent->port[port]);
- volatile u8 *port_mmio = (volatile u8 *)pp->port_mmio;
+ void __iomem *port_mmio = pp->port_mmio;
u32 cmd_fis_len = 5; /* five dwords */
u8 fis[20];
memset(fis, 0, sizeof(fis));
fis[0] = 0x27;
fis[1] = 1 << 7;
- fis[2] = ATA_CMD_SETF;
+ fis[2] = ATA_CMD_SET_FEATURES;
fis[3] = SETFEATURES_XFER;
fis[12] = __ilog2(probe_ent->udma_mask + 1) + 0x40 - 0x01;
memcpy((unsigned char *)pp->cmd_tbl, fis, sizeof(fis));
ahci_fill_cmd_slot(pp, cmd_fis_len);
+ ahci_dcache_flush_sata_cmd(pp);
writel(1, port_mmio + PORT_CMD_ISSUE);
readl(port_mmio + PORT_CMD_ISSUE);
- if (waiting_for_cmd_completed(port_mmio + PORT_CMD_ISSUE, 150, 0x1)) {
+ if (waiting_for_cmd_completed(port_mmio + PORT_CMD_ISSUE,
+ WAIT_MS_DATAIO, 0x1)) {
printf("set feature error on port %d!\n", port);
}
}
#endif
+static int wait_spinup(void __iomem *port_mmio)
+{
+ ulong start;
+ u32 tf_data;
+
+ start = get_timer(0);
+ do {
+ tf_data = readl(port_mmio + PORT_TFDATA);
+ if (!(tf_data & ATA_BUSY))
+ return 0;
+ } while (get_timer(start) < WAIT_MS_SPINUP);
+
+ return -ETIMEDOUT;
+}
static int ahci_port_start(u8 port)
{
struct ahci_ioports *pp = &(probe_ent->port[port]);
- volatile u8 *port_mmio = (volatile u8 *)pp->port_mmio;
+ void __iomem *port_mmio = pp->port_mmio;
u32 port_status;
- u32 mem;
+ void __iomem *mem;
debug("Enter start port: %d\n", port);
port_status = readl(port_mmio + PORT_SCR_STAT);
return -1;
}
- mem = (u32) malloc(AHCI_PORT_PRIV_DMA_SZ + 2048);
+ mem = malloc(AHCI_PORT_PRIV_DMA_SZ + 2048);
if (!mem) {
free(pp);
- printf("No mem for table!\n");
+ printf("%s: No mem for table!\n", __func__);
return -ENOMEM;
}
- mem = (mem + 0x800) & (~0x7ff); /* Aligned to 2048-bytes */
- memset((u8 *) mem, 0, AHCI_PORT_PRIV_DMA_SZ);
+ /* Aligned to 2048-bytes */
+ mem = memalign(2048, AHCI_PORT_PRIV_DMA_SZ);
+ memset(mem, 0, AHCI_PORT_PRIV_DMA_SZ);
/*
* First item in chunk of DMA memory: 32-slot command table,
* 32 bytes each in size
*/
- pp->cmd_slot = (struct ahci_cmd_hdr *)mem;
- debug("cmd_slot = 0x%x\n", (unsigned)pp->cmd_slot);
+ pp->cmd_slot =
+ (struct ahci_cmd_hdr *)(uintptr_t)virt_to_phys((void *)mem);
+ debug("cmd_slot = %p\n", pp->cmd_slot);
mem += (AHCI_CMD_SLOT_SZ + 224);
/*
* Second item: Received-FIS area
*/
- pp->rx_fis = mem;
+ pp->rx_fis = virt_to_phys((void *)mem);
mem += AHCI_RX_FIS_SZ;
/*
* Third item: data area for storing a single command
* and its scatter-gather table
*/
- pp->cmd_tbl = mem;
- debug("cmd_tbl_dma = 0x%x\n", pp->cmd_tbl);
+ pp->cmd_tbl = virt_to_phys((void *)mem);
+ debug("cmd_tbl_dma = %lx\n", pp->cmd_tbl);
mem += AHCI_CMD_TBL_HDR;
- pp->cmd_tbl_sg = (struct ahci_sg *)mem;
+ pp->cmd_tbl_sg =
+ (struct ahci_sg *)(uintptr_t)virt_to_phys((void *)mem);
- writel_with_flush((u32) pp->cmd_slot, port_mmio + PORT_LST_ADDR);
+ writel_with_flush((unsigned long)pp->cmd_slot,
+ port_mmio + PORT_LST_ADDR);
writel_with_flush(pp->rx_fis, port_mmio + PORT_FIS_ADDR);
+#ifdef CONFIG_SUNXI_AHCI
+ sunxi_dma_init(port_mmio);
+#endif
+
writel_with_flush(PORT_CMD_ICC_ACTIVE | PORT_CMD_FIS_RX |
PORT_CMD_POWER_ON | PORT_CMD_SPIN_UP |
PORT_CMD_START, port_mmio + PORT_CMD);
debug("Exit start port %d\n", port);
- return 0;
+ /*
+ * Make sure interface is not busy based on error and status
+ * information from task file data register before proceeding
+ */
+ return wait_spinup(port_mmio);
}
{
struct ahci_ioports *pp = &(probe_ent->port[port]);
- volatile u8 *port_mmio = (volatile u8 *)pp->port_mmio;
+ void __iomem *port_mmio = pp->port_mmio;
u32 opts;
u32 port_status;
int sg_count;
debug("Enter %s: for port %d\n", __func__, port);
if (port > probe_ent->n_ports) {
- printf("Invaild port number %d\n", port);
+ printf("Invalid port number %d\n", port);
return -1;
}
opts = (fis_len >> 2) | (sg_count << 16) | (is_write << 6);
ahci_fill_cmd_slot(pp, opts);
+ ahci_dcache_flush_sata_cmd(pp);
+ ahci_dcache_flush_range((unsigned long)buf, (unsigned long)buf_len);
+
writel_with_flush(1, port_mmio + PORT_CMD_ISSUE);
- if (waiting_for_cmd_completed(port_mmio + PORT_CMD_ISSUE, 150, 0x1)) {
+ if (waiting_for_cmd_completed(port_mmio + PORT_CMD_ISSUE,
+ WAIT_MS_DATAIO, 0x1)) {
printf("timeout exit!\n");
return -1;
}
+
+ ahci_dcache_invalidate_range((unsigned long)buf,
+ (unsigned long)buf_len);
debug("%s: %d byte transferred.\n", __func__, pp->cmd_slot->status);
return 0;
return (char *)target;
}
-
-static void dump_ataid(hd_driveid_t *ataid)
-{
- debug("(49)ataid->capability = 0x%x\n", ataid->capability);
- debug("(53)ataid->field_valid =0x%x\n", ataid->field_valid);
- debug("(63)ataid->dma_mword = 0x%x\n", ataid->dma_mword);
- debug("(64)ataid->eide_pio_modes = 0x%x\n", ataid->eide_pio_modes);
- debug("(75)ataid->queue_depth = 0x%x\n", ataid->queue_depth);
- debug("(80)ataid->major_rev_num = 0x%x\n", ataid->major_rev_num);
- debug("(81)ataid->minor_rev_num = 0x%x\n", ataid->minor_rev_num);
- debug("(82)ataid->command_set_1 = 0x%x\n", ataid->command_set_1);
- debug("(83)ataid->command_set_2 = 0x%x\n", ataid->command_set_2);
- debug("(84)ataid->cfsse = 0x%x\n", ataid->cfsse);
- debug("(85)ataid->cfs_enable_1 = 0x%x\n", ataid->cfs_enable_1);
- debug("(86)ataid->cfs_enable_2 = 0x%x\n", ataid->cfs_enable_2);
- debug("(87)ataid->csf_default = 0x%x\n", ataid->csf_default);
- debug("(88)ataid->dma_ultra = 0x%x\n", ataid->dma_ultra);
- debug("(93)ataid->hw_config = 0x%x\n", ataid->hw_config);
-}
-
-
/*
* SCSI INQUIRY command operation.
*/
static int ata_scsiop_inquiry(ccb *pccb)
{
- u8 hdr[] = {
+ static const u8 hdr[] = {
0,
0,
0x5, /* claim SPC-3 version compatibility */
95 - 4,
};
u8 fis[20];
- u8 *tmpid;
+ u16 *idbuf;
+ ALLOC_CACHE_ALIGN_BUFFER(u16, tmpid, ATA_ID_WORDS);
u8 port;
/* Clean ccb data buffer */
/* Construct the FIS */
fis[0] = 0x27; /* Host to device FIS. */
fis[1] = 1 << 7; /* Command FIS. */
- fis[2] = ATA_CMD_IDENT; /* Command byte. */
+ fis[2] = ATA_CMD_ID_ATA; /* Command byte. */
/* Read id from sata */
port = pccb->target;
- if (!(tmpid = malloc(sizeof(hd_driveid_t))))
- return -ENOMEM;
- if (ahci_device_data_io(port, (u8 *) &fis, sizeof(fis), tmpid,
- sizeof(hd_driveid_t), 0)) {
+ if (ahci_device_data_io(port, (u8 *) &fis, sizeof(fis), (u8 *)tmpid,
+ ATA_ID_WORDS * 2, 0)) {
debug("scsi_ahci: SCSI inquiry command failure.\n");
return -EIO;
}
- if (ataid[port])
- free(ataid[port]);
- ataid[port] = (hd_driveid_t *) tmpid;
+ if (!ataid[port]) {
+ ataid[port] = malloc(ATA_ID_WORDS * 2);
+ if (!ataid[port]) {
+ printf("%s: No memory for ataid[port]\n", __func__);
+ return -ENOMEM;
+ }
+ }
+
+ idbuf = ataid[port];
+
+ memcpy(idbuf, tmpid, ATA_ID_WORDS * 2);
+ ata_swap_buf_le16(idbuf, ATA_ID_WORDS);
memcpy(&pccb->pdata[8], "ATA ", 8);
- ata_id_strcpy((u16 *) &pccb->pdata[16], (u16 *)ataid[port]->model, 16);
- ata_id_strcpy((u16 *) &pccb->pdata[32], (u16 *)ataid[port]->fw_rev, 4);
+ ata_id_strcpy((u16 *)&pccb->pdata[16], &idbuf[ATA_ID_PROD], 16);
+ ata_id_strcpy((u16 *)&pccb->pdata[32], &idbuf[ATA_ID_FW_REV], 4);
- dump_ataid(ataid[port]);
+#ifdef DEBUG
+ ata_dump_id(idbuf);
+#endif
return 0;
}
*/
static int ata_scsiop_read_write(ccb *pccb, u8 is_write)
{
- u32 lba = 0;
+ lbaint_t lba = 0;
u16 blocks = 0;
u8 fis[20];
u8 *user_buffer = pccb->pdata;
u32 user_buffer_size = pccb->datalen;
/* Retrieve the base LBA number from the ccb structure. */
- memcpy(&lba, pccb->cmd + 2, sizeof(lba));
- lba = be32_to_cpu(lba);
+ if (pccb->cmd[0] == SCSI_READ16) {
+ memcpy(&lba, pccb->cmd + 2, 8);
+ lba = be64_to_cpu(lba);
+ } else {
+ u32 temp;
+ memcpy(&temp, pccb->cmd + 2, 4);
+ lba = be32_to_cpu(temp);
+ }
/*
- * And the number of blocks.
+ * Retrieve the base LBA number and the block count from
+ * the ccb structure.
*
* For 10-byte and 16-byte SCSI R/W commands, transfer
* length 0 means transfer 0 block of data.
*
* WARNING: one or two older ATA drives treat 0 as 0...
*/
- blocks = (((u16)pccb->cmd[7]) << 8) | ((u16) pccb->cmd[8]);
+ 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 %d blocks starting from lba 0x%x\n",
- is_write ? "write" : "read", (unsigned)lba, blocks);
+ debug("scsi_ahci: %s %u blocks starting from lba 0x" LBAFU "\n",
+ is_write ? "write" : "read", blocks, lba);
/* Preset the FIS */
memset(fis, 0, sizeof(fis));
fis[0] = 0x27; /* Host to device FIS. */
fis[1] = 1 << 7; /* Command FIS. */
/* Command byte (read/write). */
- fis[2] = is_write ? ATA_CMD_WR_DMA : ATA_CMD_RD_DMA;
+ fis[2] = is_write ? ATA_CMD_WRITE_EXT : ATA_CMD_READ_EXT;
while (blocks) {
u16 now_blocks; /* number of blocks per iteration */
u32 transfer_size; /* number of bytes per iteration */
- now_blocks = min(MAX_SATA_BLOCKS_READ_WRITE, blocks);
+ now_blocks = min((u16)MAX_SATA_BLOCKS_READ_WRITE, blocks);
- transfer_size = ATA_BLOCKSIZE * now_blocks;
+ transfer_size = ATA_SECT_SIZE * now_blocks;
if (transfer_size > user_buffer_size) {
printf("scsi_ahci: Error: buffer too small.\n");
return -EIO;
}
- /* LBA address, only support LBA28 in this driver */
+ /*
+ * LBA48 SATA command but only use 32bit address range within
+ * that (unless we've enabled 64bit LBA support). The next
+ * smaller command range (28bit) is too small.
+ */
fis[4] = (lba >> 0) & 0xff;
fis[5] = (lba >> 8) & 0xff;
fis[6] = (lba >> 16) & 0xff;
- fis[7] = ((lba >> 24) & 0xf) | 0xe0;
+ fis[7] = 1 << 6; /* device reg: set LBA mode */
+ fis[8] = ((lba >> 24) & 0xff);
+#ifdef CONFIG_SYS_64BIT_LBA
+ if (pccb->cmd[0] == SCSI_READ16) {
+ fis[9] = ((lba >> 32) & 0xff);
+ fis[10] = ((lba >> 40) & 0xff);
+ }
+#endif
+
+ fis[3] = 0xe0; /* features */
/* Block (sector) count */
fis[12] = (now_blocks >> 0) & 0xff;
/* Read/Write from ahci */
if (ahci_device_data_io(pccb->target, (u8 *) &fis, sizeof(fis),
- user_buffer, user_buffer_size,
+ user_buffer, transfer_size,
is_write)) {
debug("scsi_ahci: SCSI %s10 command failure.\n",
is_write ? "WRITE" : "READ");
return -EIO;
}
+
+ /* If this transaction is a write, do a following flush.
+ * Writes in u-boot are so rare, and the logic to know when is
+ * the last write and do a flush only there is sufficiently
+ * difficult. Just do a flush after every write. This incurs,
+ * usually, one extra flush when the rare writes do happen.
+ */
+ if (is_write) {
+ if (-EIO == ata_io_flush(pccb->target))
+ return -EIO;
+ }
user_buffer += transfer_size;
user_buffer_size -= transfer_size;
blocks -= now_blocks;
static int ata_scsiop_read_capacity10(ccb *pccb)
{
u32 cap;
+ u64 cap64;
u32 block_size;
if (!ataid[pccb->target]) {
return -EPERM;
}
- cap = le32_to_cpu(ataid[pccb->target]->lba_capacity);
- if (cap == 0xfffffff) {
- unsigned short *cap48 = ataid[pccb->target]->lba48_capacity;
- if (cap48[2] || cap48[3]) {
- cap = 0xffffffff;
- } else {
- cap = (le16_to_cpu(cap48[1]) << 16) |
- (le16_to_cpu(cap48[0]));
- }
- }
+ cap64 = ata_id_n_sectors(ataid[pccb->target]);
+ if (cap64 > 0x100000000ULL)
+ cap64 = 0xffffffff;
- cap = cpu_to_be32(cap);
+ cap = cpu_to_be32(cap64);
memcpy(pccb->pdata, &cap, sizeof(cap));
block_size = cpu_to_be32((u32)512);
return -EPERM;
}
- cap = le32_to_cpu(ataid[pccb->target]->lba_capacity);
- if (cap == 0xfffffff) {
- memcpy(&cap, ataid[pccb->target]->lba48_capacity, sizeof(cap));
- cap = le64_to_cpu(cap);
- }
-
+ cap = ata_id_n_sectors(ataid[pccb->target]);
cap = cpu_to_be64(cap);
memcpy(pccb->pdata, &cap, sizeof(cap));
int ret;
switch (pccb->cmd[0]) {
+ case SCSI_READ16:
case SCSI_READ10:
ret = ata_scsiop_read_write(pccb, 0);
break;
break;
default:
printf("Unsupport SCSI command 0x%02x\n", pccb->cmd[0]);
- return FALSE;
+ return false;
}
if (ret) {
debug("SCSI command 0x%02x ret errno %d\n", pccb->cmd[0], ret);
- return FALSE;
+ return false;
}
- return TRUE;
+ return true;
}
}
#ifdef CONFIG_SCSI_AHCI_PLAT
-int ahci_init(u32 base)
+int ahci_init(void __iomem *base)
{
int i, rc = 0;
u32 linkmap;
- memset(ataid, 0, sizeof(ataid));
-
probe_ent = malloc(sizeof(struct ahci_probe_ent));
+ if (!probe_ent) {
+ printf("%s: No memory for probe_ent\n", __func__);
+ return -ENOMEM;
+ }
+
memset(probe_ent, 0, sizeof(struct ahci_probe_ent));
probe_ent->host_flags = ATA_FLAG_SATA
err_out:
return rc;
}
+
+void __weak scsi_init(void)
+{
+}
+
#endif
-void scsi_bus_reset(void)
+/*
+ * In the general case of generic rotating media it makes sense to have a
+ * flush capability. It probably even makes sense in the case of SSDs because
+ * one cannot always know for sure what kind of internal cache/flush mechanism
+ * is embodied therein. At first it was planned to invoke this after the last
+ * write to disk and before rebooting. In practice, knowing, a priori, which
+ * is the last write is difficult. Because writing to the disk in u-boot is
+ * very rare, this flush command will be invoked after every block write.
+ */
+static int ata_io_flush(u8 port)
{
- /*Not implement*/
+ u8 fis[20];
+ struct ahci_ioports *pp = &(probe_ent->port[port]);
+ void __iomem *port_mmio = pp->port_mmio;
+ u32 cmd_fis_len = 5; /* five dwords */
+
+ /* Preset the FIS */
+ memset(fis, 0, 20);
+ fis[0] = 0x27; /* Host to device FIS. */
+ fis[1] = 1 << 7; /* Command FIS. */
+ fis[2] = ATA_CMD_FLUSH_EXT;
+
+ memcpy((unsigned char *)pp->cmd_tbl, fis, 20);
+ ahci_fill_cmd_slot(pp, cmd_fis_len);
+ writel_with_flush(1, port_mmio + PORT_CMD_ISSUE);
+
+ if (waiting_for_cmd_completed(port_mmio + PORT_CMD_ISSUE,
+ WAIT_MS_FLUSH, 0x1)) {
+ debug("scsi_ahci: flush command timeout on port %d.\n", port);
+ return -EIO;
+ }
+
+ return 0;
}
+__weak void scsi_bus_reset(void)
+{
+ /*Not implement*/
+}
+
void scsi_print_error(ccb * pccb)
{
/*The ahci error info can be read in the ahci driver*/