--- /dev/null
+/*
+ * (C) Copyright 2001
+ * Denis Peter, MPL AG Switzerland
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/*
+ * SCSI support.
+ */
+#include <common.h>
+#include <command.h>
+#include <asm/processor.h>
+#include <scsi.h>
+#include <image.h>
+#include <pci.h>
+
+#ifdef CONFIG_SCSI_DEV_LIST
+#define SCSI_DEV_LIST CONFIG_SCSI_DEV_LIST
+#else
+#ifdef CONFIG_SCSI_SYM53C8XX
+#define SCSI_VEND_ID 0x1000
+#ifndef CONFIG_SCSI_DEV_ID
+#define SCSI_DEV_ID 0x0001
+#else
+#define SCSI_DEV_ID CONFIG_SCSI_DEV_ID
+#endif
+#elif defined CONFIG_SATA_ULI5288
+
+#define SCSI_VEND_ID 0x10b9
+#define SCSI_DEV_ID 0x5288
+
+#elif !defined(CONFIG_SCSI_AHCI_PLAT)
+#error no scsi device defined
+#endif
+#define SCSI_DEV_LIST {SCSI_VEND_ID, SCSI_DEV_ID}
+#endif
+
+#ifdef CONFIG_PCI
+const struct pci_device_id scsi_device_list[] = { SCSI_DEV_LIST };
+#endif
+static ccb tempccb; /* temporary scsi command buffer */
+
+static unsigned char tempbuff[512]; /* temporary data buffer */
+
+static int scsi_max_devs; /* number of highest available scsi device */
+
+static int scsi_curr_dev; /* current device */
+
+static block_dev_desc_t scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE];
+
+/********************************************************************************
+ * forward declerations of some Setup Routines
+ */
+void scsi_setup_test_unit_ready(ccb * pccb);
+void scsi_setup_read6(ccb * pccb, unsigned long start, unsigned short blocks);
+void scsi_setup_read_ext(ccb * pccb, unsigned long start, unsigned short blocks);
+static void scsi_setup_write_ext(ccb *pccb, unsigned long start,
+ unsigned short blocks);
+void scsi_setup_inquiry(ccb * pccb);
+void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
+
+
+static int scsi_read_capacity(ccb *pccb, lbaint_t *capacity,
+ unsigned long *blksz);
+static ulong scsi_read(int device, lbaint_t blknr, lbaint_t blkcnt,
+ void *buffer);
+static ulong scsi_write(int device, lbaint_t blknr,
+ lbaint_t blkcnt, const void *buffer);
+
+
+/*********************************************************************************
+ * (re)-scan the scsi bus and reports scsi device info
+ * to the user if mode = 1
+ */
+void scsi_scan(int mode)
+{
+ unsigned char i,perq,modi,lun;
+ lbaint_t capacity;
+ unsigned long blksz;
+ ccb* pccb=(ccb *)&tempccb;
+
+ if(mode==1) {
+ printf("scanning bus for devices...\n");
+ }
+ for(i=0;i<CONFIG_SYS_SCSI_MAX_DEVICE;i++) {
+ scsi_dev_desc[i].target=0xff;
+ scsi_dev_desc[i].lun=0xff;
+ scsi_dev_desc[i].lba=0;
+ scsi_dev_desc[i].blksz=0;
+ scsi_dev_desc[i].log2blksz =
+ LOG2_INVALID(typeof(scsi_dev_desc[i].log2blksz));
+ scsi_dev_desc[i].type=DEV_TYPE_UNKNOWN;
+ scsi_dev_desc[i].vendor[0]=0;
+ scsi_dev_desc[i].product[0]=0;
+ scsi_dev_desc[i].revision[0]=0;
+ scsi_dev_desc[i].removable = false;
+ scsi_dev_desc[i].if_type=IF_TYPE_SCSI;
+ scsi_dev_desc[i].dev=i;
+ scsi_dev_desc[i].part_type=PART_TYPE_UNKNOWN;
+ scsi_dev_desc[i].block_read=scsi_read;
+ scsi_dev_desc[i].block_write = scsi_write;
+ }
+ scsi_max_devs=0;
+ for(i=0;i<CONFIG_SYS_SCSI_MAX_SCSI_ID;i++) {
+ pccb->target=i;
+ for(lun=0;lun<CONFIG_SYS_SCSI_MAX_LUN;lun++) {
+ pccb->lun=lun;
+ pccb->pdata=(unsigned char *)&tempbuff;
+ pccb->datalen=512;
+ scsi_setup_inquiry(pccb);
+ if (scsi_exec(pccb) != true) {
+ if(pccb->contr_stat==SCSI_SEL_TIME_OUT) {
+ debug ("Selection timeout ID %d\n",pccb->target);
+ continue; /* selection timeout => assuming no device present */
+ }
+ scsi_print_error(pccb);
+ continue;
+ }
+ perq=tempbuff[0];
+ modi=tempbuff[1];
+ if((perq & 0x1f)==0x1f) {
+ continue; /* skip unknown devices */
+ }
+ if((modi&0x80)==0x80) /* drive is removable */
+ scsi_dev_desc[scsi_max_devs].removable=true;
+ /* get info for this device */
+ scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].vendor[0],
+ &tempbuff[8], 8);
+ scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].product[0],
+ &tempbuff[16], 16);
+ scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].revision[0],
+ &tempbuff[32], 4);
+ scsi_dev_desc[scsi_max_devs].target=pccb->target;
+ scsi_dev_desc[scsi_max_devs].lun=pccb->lun;
+
+ pccb->datalen=0;
+ scsi_setup_test_unit_ready(pccb);
+ if (scsi_exec(pccb) != true) {
+ if (scsi_dev_desc[scsi_max_devs].removable == true) {
+ scsi_dev_desc[scsi_max_devs].type=perq;
+ goto removable;
+ }
+ scsi_print_error(pccb);
+ continue;
+ }
+ if (scsi_read_capacity(pccb, &capacity, &blksz)) {
+ scsi_print_error(pccb);
+ continue;
+ }
+ scsi_dev_desc[scsi_max_devs].lba=capacity;
+ scsi_dev_desc[scsi_max_devs].blksz=blksz;
+ scsi_dev_desc[scsi_max_devs].log2blksz =
+ LOG2(scsi_dev_desc[scsi_max_devs].blksz);
+ scsi_dev_desc[scsi_max_devs].type=perq;
+ init_part(&scsi_dev_desc[scsi_max_devs]);
+removable:
+ if(mode==1) {
+ printf (" Device %d: ", scsi_max_devs);
+ dev_print(&scsi_dev_desc[scsi_max_devs]);
+ } /* if mode */
+ scsi_max_devs++;
+ } /* next LUN */
+ }
+ if(scsi_max_devs>0)
+ scsi_curr_dev=0;
+ else
+ scsi_curr_dev = -1;
+
+ printf("Found %d device(s).\n", scsi_max_devs);
+#ifndef CONFIG_SPL_BUILD
+ setenv_ulong("scsidevs", scsi_max_devs);
+#endif
+}
+
+int scsi_get_disk_count(void)
+{
+ return scsi_max_devs;
+}
+
+#ifdef CONFIG_PCI
+void scsi_init(void)
+{
+ int busdevfunc;
+ int i;
+ /*
+ * Find a device from the list, this driver will support a single
+ * controller.
+ */
+ for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
+ /* get PCI Device ID */
+ busdevfunc = pci_find_device(scsi_device_list[i].vendor,
+ scsi_device_list[i].device,
+ 0);
+ if (busdevfunc != -1)
+ break;
+ }
+
+ if (busdevfunc == -1) {
+ printf("Error: SCSI Controller(s) ");
+ for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
+ printf("%04X:%04X ",
+ scsi_device_list[i].vendor,
+ scsi_device_list[i].device);
+ }
+ printf("not found\n");
+ return;
+ }
+#ifdef DEBUG
+ else {
+ printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n",
+ scsi_device_list[i].vendor,
+ scsi_device_list[i].device,
+ (busdevfunc >> 16) & 0xFF,
+ (busdevfunc >> 11) & 0x1F,
+ (busdevfunc >> 8) & 0x7);
+ }
+#endif
+ scsi_low_level_init(busdevfunc);
+ scsi_scan(1);
+}
+#endif
+
+#ifdef CONFIG_PARTITIONS
+block_dev_desc_t * scsi_get_dev(int dev)
+{
+ return (dev < CONFIG_SYS_SCSI_MAX_DEVICE) ? &scsi_dev_desc[dev] : NULL;
+}
+#endif
+
+/******************************************************************************
+ * scsi boot command intepreter. Derived from diskboot
+ */
+int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ return common_diskboot(cmdtp, "scsi", argc, argv);
+}
+
+/*********************************************************************************
+ * scsi command intepreter
+ */
+int do_scsi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ switch (argc) {
+ case 0:
+ case 1:
+ return CMD_RET_USAGE;
+
+ case 2:
+ if (strncmp(argv[1],"res",3) == 0) {
+ printf("\nReset SCSI\n");
+ scsi_bus_reset();
+ scsi_scan(1);
+ return 0;
+ }
+ if (strncmp(argv[1],"inf",3) == 0) {
+ int i;
+ for (i=0; i<CONFIG_SYS_SCSI_MAX_DEVICE; ++i) {
+ if(scsi_dev_desc[i].type==DEV_TYPE_UNKNOWN)
+ continue; /* list only known devices */
+ printf ("SCSI dev. %d: ", i);
+ dev_print(&scsi_dev_desc[i]);
+ }
+ return 0;
+ }
+ if (strncmp(argv[1],"dev",3) == 0) {
+ if ((scsi_curr_dev < 0) || (scsi_curr_dev >= CONFIG_SYS_SCSI_MAX_DEVICE)) {
+ printf("\nno SCSI devices available\n");
+ return 1;
+ }
+ printf ("\n Device %d: ", scsi_curr_dev);
+ dev_print(&scsi_dev_desc[scsi_curr_dev]);
+ return 0;
+ }
+ if (strncmp(argv[1],"scan",4) == 0) {
+ scsi_scan(1);
+ return 0;
+ }
+ if (strncmp(argv[1],"part",4) == 0) {
+ int dev, ok;
+ for (ok=0, dev=0; dev<CONFIG_SYS_SCSI_MAX_DEVICE; ++dev) {
+ if (scsi_dev_desc[dev].type!=DEV_TYPE_UNKNOWN) {
+ ok++;
+ if (dev)
+ printf("\n");
+ debug ("print_part of %x\n",dev);
+ print_part(&scsi_dev_desc[dev]);
+ }
+ }
+ if (!ok)
+ printf("\nno SCSI devices available\n");
+ return 1;
+ }
+ return CMD_RET_USAGE;
+ case 3:
+ if (strncmp(argv[1],"dev",3) == 0) {
+ int dev = (int)simple_strtoul(argv[2], NULL, 10);
+ printf ("\nSCSI device %d: ", dev);
+ if (dev >= CONFIG_SYS_SCSI_MAX_DEVICE) {
+ printf("unknown device\n");
+ return 1;
+ }
+ printf ("\n Device %d: ", dev);
+ dev_print(&scsi_dev_desc[dev]);
+ if(scsi_dev_desc[dev].type == DEV_TYPE_UNKNOWN) {
+ return 1;
+ }
+ scsi_curr_dev = dev;
+ printf("... is now current device\n");
+ return 0;
+ }
+ if (strncmp(argv[1],"part",4) == 0) {
+ int dev = (int)simple_strtoul(argv[2], NULL, 10);
+ if(scsi_dev_desc[dev].type != DEV_TYPE_UNKNOWN) {
+ print_part(&scsi_dev_desc[dev]);
+ }
+ else {
+ printf ("\nSCSI device %d not available\n", dev);
+ }
+ return 1;
+ }
+ return CMD_RET_USAGE;
+ default:
+ /* at least 4 args */
+ if (strcmp(argv[1],"read") == 0) {
+ ulong addr = simple_strtoul(argv[2], NULL, 16);
+ ulong blk = simple_strtoul(argv[3], NULL, 16);
+ ulong cnt = simple_strtoul(argv[4], NULL, 16);
+ ulong n;
+ printf ("\nSCSI read: device %d block # %ld, count %ld ... ",
+ scsi_curr_dev, blk, cnt);
+ n = scsi_read(scsi_curr_dev, blk, cnt, (ulong *)addr);
+ printf ("%ld blocks read: %s\n",n,(n==cnt) ? "OK" : "ERROR");
+ return 0;
+ } else if (strcmp(argv[1], "write") == 0) {
+ ulong addr = simple_strtoul(argv[2], NULL, 16);
+ ulong blk = simple_strtoul(argv[3], NULL, 16);
+ ulong cnt = simple_strtoul(argv[4], NULL, 16);
+ ulong n;
+ printf("\nSCSI write: device %d block # %ld, "
+ "count %ld ... ",
+ scsi_curr_dev, blk, cnt);
+ n = scsi_write(scsi_curr_dev, blk, cnt,
+ (ulong *)addr);
+ printf("%ld blocks written: %s\n", n,
+ (n == cnt) ? "OK" : "ERROR");
+ return 0;
+ }
+ } /* switch */
+ return CMD_RET_USAGE;
+}
+
+/****************************************************************************************
+ * scsi_read
+ */
+
+#define SCSI_MAX_READ_BLK 0xFFFF /* almost the maximum amount of the scsi_ext command.. */
+
+static ulong scsi_read(int device, lbaint_t blknr, lbaint_t blkcnt,
+ void *buffer)
+{
+ lbaint_t start, blks;
+ uintptr_t buf_addr;
+ unsigned short smallblks;
+ ccb* pccb=(ccb *)&tempccb;
+ device&=0xff;
+ /* Setup device
+ */
+ pccb->target=scsi_dev_desc[device].target;
+ pccb->lun=scsi_dev_desc[device].lun;
+ buf_addr=(unsigned long)buffer;
+ start=blknr;
+ blks=blkcnt;
+ debug("\nscsi_read: dev %d startblk " LBAF
+ ", blccnt " LBAF " buffer %lx\n",
+ device, start, blks, (unsigned long)buffer);
+ do {
+ pccb->pdata=(unsigned char *)buf_addr;
+ if(blks>SCSI_MAX_READ_BLK) {
+ pccb->datalen=scsi_dev_desc[device].blksz * SCSI_MAX_READ_BLK;
+ smallblks=SCSI_MAX_READ_BLK;
+ scsi_setup_read_ext(pccb,start,smallblks);
+ start+=SCSI_MAX_READ_BLK;
+ blks-=SCSI_MAX_READ_BLK;
+ }
+ else {
+ pccb->datalen=scsi_dev_desc[device].blksz * blks;
+ smallblks=(unsigned short) blks;
+ scsi_setup_read_ext(pccb,start,smallblks);
+ start+=blks;
+ blks=0;
+ }
+ debug("scsi_read_ext: startblk " LBAF
+ ", blccnt %x buffer %lx\n",
+ start, smallblks, buf_addr);
+ if (scsi_exec(pccb) != true) {
+ scsi_print_error(pccb);
+ blkcnt-=blks;
+ break;
+ }
+ buf_addr+=pccb->datalen;
+ } while(blks!=0);
+ debug("scsi_read_ext: end startblk " LBAF
+ ", blccnt %x buffer %lx\n", start, smallblks, buf_addr);
+ return(blkcnt);
+}
+
+/*******************************************************************************
+ * scsi_write
+ */
+
+/* Almost the maximum amount of the scsi_ext command.. */
+#define SCSI_MAX_WRITE_BLK 0xFFFF
+
+static ulong scsi_write(int device, lbaint_t blknr,
+ lbaint_t blkcnt, const void *buffer)
+{
+ lbaint_t start, blks;
+ uintptr_t buf_addr;
+ unsigned short smallblks;
+ ccb* pccb = (ccb *)&tempccb;
+ device &= 0xff;
+ /* Setup device
+ */
+ pccb->target = scsi_dev_desc[device].target;
+ pccb->lun = scsi_dev_desc[device].lun;
+ buf_addr = (unsigned long)buffer;
+ start = blknr;
+ blks = blkcnt;
+ debug("\n%s: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n",
+ __func__, device, start, blks, (unsigned long)buffer);
+ do {
+ pccb->pdata = (unsigned char *)buf_addr;
+ if (blks > SCSI_MAX_WRITE_BLK) {
+ pccb->datalen = (scsi_dev_desc[device].blksz *
+ SCSI_MAX_WRITE_BLK);
+ smallblks = SCSI_MAX_WRITE_BLK;
+ scsi_setup_write_ext(pccb, start, smallblks);
+ start += SCSI_MAX_WRITE_BLK;
+ blks -= SCSI_MAX_WRITE_BLK;
+ } else {
+ pccb->datalen = scsi_dev_desc[device].blksz * blks;
+ smallblks = (unsigned short)blks;
+ scsi_setup_write_ext(pccb, start, smallblks);
+ start += blks;
+ blks = 0;
+ }
+ debug("%s: startblk " LBAF ", blccnt %x buffer %lx\n",
+ __func__, start, smallblks, buf_addr);
+ if (scsi_exec(pccb) != true) {
+ scsi_print_error(pccb);
+ blkcnt -= blks;
+ break;
+ }
+ buf_addr += pccb->datalen;
+ } while (blks != 0);
+ debug("%s: end startblk " LBAF ", blccnt %x buffer %lx\n",
+ __func__, start, smallblks, buf_addr);
+ return blkcnt;
+}
+
+/* copy src to dest, skipping leading and trailing blanks
+ * and null terminate the string
+ */
+void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len)
+{
+ int start,end;
+
+ start=0;
+ while(start<len) {
+ if(src[start]!=' ')
+ break;
+ start++;
+ }
+ end=len-1;
+ while(end>start) {
+ if(src[end]!=' ')
+ break;
+ end--;
+ }
+ for( ; start<=end; start++) {
+ *dest++=src[start];
+ }
+ *dest='\0';
+}
+
+
+/* Trim trailing blanks, and NUL-terminate string
+ */
+void scsi_trim_trail (unsigned char *str, unsigned int len)
+{
+ unsigned char *p = str + len - 1;
+
+ while (len-- > 0) {
+ *p-- = '\0';
+ if (*p != ' ') {
+ return;
+ }
+ }
+}
+
+int scsi_read_capacity(ccb *pccb, lbaint_t *capacity, unsigned long *blksz)
+{
+ *capacity = 0;
+
+ memset(pccb->cmd, 0, sizeof(pccb->cmd));
+ pccb->cmd[0] = SCSI_RD_CAPAC10;
+ pccb->cmd[1] = pccb->lun << 5;
+ pccb->cmdlen = 10;
+ pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
+
+ pccb->datalen = 8;
+ if (scsi_exec(pccb) != true)
+ return 1;
+
+ *capacity = ((lbaint_t)pccb->pdata[0] << 24) |
+ ((lbaint_t)pccb->pdata[1] << 16) |
+ ((lbaint_t)pccb->pdata[2] << 8) |
+ ((lbaint_t)pccb->pdata[3]);
+
+ if (*capacity != 0xffffffff) {
+ /* Read capacity (10) was sufficient for this drive. */
+ *blksz = ((unsigned long)pccb->pdata[4] << 24) |
+ ((unsigned long)pccb->pdata[5] << 16) |
+ ((unsigned long)pccb->pdata[6] << 8) |
+ ((unsigned long)pccb->pdata[7]);
+ return 0;
+ }
+
+ /* Read capacity (10) was insufficient. Use read capacity (16). */
+
+ memset(pccb->cmd, 0, sizeof(pccb->cmd));
+ pccb->cmd[0] = SCSI_RD_CAPAC16;
+ pccb->cmd[1] = 0x10;
+ pccb->cmdlen = 16;
+ pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
+
+ pccb->datalen = 16;
+ if (scsi_exec(pccb) != true)
+ return 1;
+
+ *capacity = ((uint64_t)pccb->pdata[0] << 56) |
+ ((uint64_t)pccb->pdata[1] << 48) |
+ ((uint64_t)pccb->pdata[2] << 40) |
+ ((uint64_t)pccb->pdata[3] << 32) |
+ ((uint64_t)pccb->pdata[4] << 24) |
+ ((uint64_t)pccb->pdata[5] << 16) |
+ ((uint64_t)pccb->pdata[6] << 8) |
+ ((uint64_t)pccb->pdata[7]);
+
+ *blksz = ((uint64_t)pccb->pdata[8] << 56) |
+ ((uint64_t)pccb->pdata[9] << 48) |
+ ((uint64_t)pccb->pdata[10] << 40) |
+ ((uint64_t)pccb->pdata[11] << 32) |
+ ((uint64_t)pccb->pdata[12] << 24) |
+ ((uint64_t)pccb->pdata[13] << 16) |
+ ((uint64_t)pccb->pdata[14] << 8) |
+ ((uint64_t)pccb->pdata[15]);
+
+ return 0;
+}
+
+
+/************************************************************************************
+ * Some setup (fill-in) routines
+ */
+void scsi_setup_test_unit_ready(ccb * pccb)
+{
+ pccb->cmd[0]=SCSI_TST_U_RDY;
+ pccb->cmd[1]=pccb->lun<<5;
+ pccb->cmd[2]=0;
+ pccb->cmd[3]=0;
+ pccb->cmd[4]=0;
+ pccb->cmd[5]=0;
+ pccb->cmdlen=6;
+ pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
+}
+
+void scsi_setup_read_ext(ccb * pccb, unsigned long start, unsigned short blocks)
+{
+ pccb->cmd[0]=SCSI_READ10;
+ pccb->cmd[1]=pccb->lun<<5;
+ pccb->cmd[2]=((unsigned char) (start>>24))&0xff;
+ pccb->cmd[3]=((unsigned char) (start>>16))&0xff;
+ pccb->cmd[4]=((unsigned char) (start>>8))&0xff;
+ pccb->cmd[5]=((unsigned char) (start))&0xff;
+ pccb->cmd[6]=0;
+ pccb->cmd[7]=((unsigned char) (blocks>>8))&0xff;
+ pccb->cmd[8]=(unsigned char) blocks & 0xff;
+ pccb->cmd[6]=0;
+ pccb->cmdlen=10;
+ pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
+ debug ("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
+ pccb->cmd[0],pccb->cmd[1],
+ pccb->cmd[2],pccb->cmd[3],pccb->cmd[4],pccb->cmd[5],
+ pccb->cmd[7],pccb->cmd[8]);
+}
+
+void scsi_setup_write_ext(ccb *pccb, unsigned long start, unsigned short blocks)
+{
+ pccb->cmd[0] = SCSI_WRITE10;
+ pccb->cmd[1] = pccb->lun << 5;
+ pccb->cmd[2] = ((unsigned char) (start>>24)) & 0xff;
+ pccb->cmd[3] = ((unsigned char) (start>>16)) & 0xff;
+ pccb->cmd[4] = ((unsigned char) (start>>8)) & 0xff;
+ pccb->cmd[5] = ((unsigned char) (start)) & 0xff;
+ pccb->cmd[6] = 0;
+ pccb->cmd[7] = ((unsigned char) (blocks>>8)) & 0xff;
+ pccb->cmd[8] = (unsigned char)blocks & 0xff;
+ pccb->cmd[9] = 0;
+ pccb->cmdlen = 10;
+ pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
+ debug("%s: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
+ __func__,
+ pccb->cmd[0], pccb->cmd[1],
+ pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
+ pccb->cmd[7], pccb->cmd[8]);
+}
+
+void scsi_setup_read6(ccb * pccb, unsigned long start, unsigned short blocks)
+{
+ pccb->cmd[0]=SCSI_READ6;
+ pccb->cmd[1]=pccb->lun<<5 | (((unsigned char)(start>>16))&0x1f);
+ pccb->cmd[2]=((unsigned char) (start>>8))&0xff;
+ pccb->cmd[3]=((unsigned char) (start))&0xff;
+ pccb->cmd[4]=(unsigned char) blocks & 0xff;
+ pccb->cmd[5]=0;
+ pccb->cmdlen=6;
+ pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
+ debug ("scsi_setup_read6: cmd: %02X %02X startblk %02X%02X blccnt %02X\n",
+ pccb->cmd[0],pccb->cmd[1],
+ pccb->cmd[2],pccb->cmd[3],pccb->cmd[4]);
+}
+
+
+void scsi_setup_inquiry(ccb * pccb)
+{
+ pccb->cmd[0]=SCSI_INQUIRY;
+ pccb->cmd[1]=pccb->lun<<5;
+ pccb->cmd[2]=0;
+ pccb->cmd[3]=0;
+ if(pccb->datalen>255)
+ pccb->cmd[4]=255;
+ else
+ pccb->cmd[4]=(unsigned char)pccb->datalen;
+ pccb->cmd[5]=0;
+ pccb->cmdlen=6;
+ pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
+}
+
+
+U_BOOT_CMD(
+ scsi, 5, 1, do_scsi,
+ "SCSI sub-system",
+ "reset - reset SCSI controller\n"
+ "scsi info - show available SCSI devices\n"
+ "scsi scan - (re-)scan SCSI bus\n"
+ "scsi device [dev] - show or set current device\n"
+ "scsi part [dev] - print partition table of one or all SCSI devices\n"
+ "scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n"
+ " to memory address `addr'\n"
+ "scsi write addr blk# cnt - write `cnt' blocks starting at block\n"
+ " `blk#' from memory address `addr'"
+);
+
+U_BOOT_CMD(
+ scsiboot, 3, 1, do_scsiboot,
+ "boot from SCSI device",
+ "loadAddr dev:part"
+);
Code Review / kvmfornfv.git / blobdiff