upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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673 lines
18 KiB
673 lines
18 KiB
/*
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* (C) Copyright 2001
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* Denis Peter, MPL AG Switzerland
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/*
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* SCSI support.
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*/
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#include <common.h>
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#include <command.h>
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#include <inttypes.h>
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#include <asm/processor.h>
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#include <scsi.h>
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#include <image.h>
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#include <pci.h>
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#ifdef CONFIG_SCSI_DEV_LIST
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#define SCSI_DEV_LIST CONFIG_SCSI_DEV_LIST
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#else
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#ifdef CONFIG_SCSI_SYM53C8XX
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#define SCSI_VEND_ID 0x1000
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#ifndef CONFIG_SCSI_DEV_ID
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#define SCSI_DEV_ID 0x0001
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#else
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#define SCSI_DEV_ID CONFIG_SCSI_DEV_ID
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#endif
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#elif defined CONFIG_SATA_ULI5288
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#define SCSI_VEND_ID 0x10b9
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#define SCSI_DEV_ID 0x5288
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#elif !defined(CONFIG_SCSI_AHCI_PLAT)
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#error no scsi device defined
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#endif
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#define SCSI_DEV_LIST {SCSI_VEND_ID, SCSI_DEV_ID}
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#endif
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#ifdef CONFIG_PCI
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const struct pci_device_id scsi_device_list[] = { SCSI_DEV_LIST };
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#endif
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static ccb tempccb; /* temporary scsi command buffer */
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static unsigned char tempbuff[512]; /* temporary data buffer */
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static int scsi_max_devs; /* number of highest available scsi device */
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static int scsi_curr_dev; /* current device */
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static block_dev_desc_t scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE];
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/********************************************************************************
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* forward declerations of some Setup Routines
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*/
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void scsi_setup_test_unit_ready(ccb * pccb);
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void scsi_setup_read6(ccb * pccb, unsigned long start, unsigned short blocks);
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void scsi_setup_read_ext(ccb * pccb, unsigned long start, unsigned short blocks);
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static void scsi_setup_write_ext(ccb *pccb, unsigned long start,
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unsigned short blocks);
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void scsi_setup_inquiry(ccb * pccb);
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void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
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static int scsi_read_capacity(ccb *pccb, lbaint_t *capacity,
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unsigned long *blksz);
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static ulong scsi_read(int device, lbaint_t blknr, lbaint_t blkcnt,
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void *buffer);
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static ulong scsi_write(int device, lbaint_t blknr,
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lbaint_t blkcnt, const void *buffer);
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/*********************************************************************************
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* (re)-scan the scsi bus and reports scsi device info
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* to the user if mode = 1
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*/
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void scsi_scan(int mode)
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{
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unsigned char i,perq,modi,lun;
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lbaint_t capacity;
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unsigned long blksz;
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ccb* pccb=(ccb *)&tempccb;
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if(mode==1) {
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printf("scanning bus for devices...\n");
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}
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for(i=0;i<CONFIG_SYS_SCSI_MAX_DEVICE;i++) {
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scsi_dev_desc[i].target=0xff;
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scsi_dev_desc[i].lun=0xff;
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scsi_dev_desc[i].lba=0;
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scsi_dev_desc[i].blksz=0;
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scsi_dev_desc[i].log2blksz =
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LOG2_INVALID(typeof(scsi_dev_desc[i].log2blksz));
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scsi_dev_desc[i].type=DEV_TYPE_UNKNOWN;
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scsi_dev_desc[i].vendor[0]=0;
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scsi_dev_desc[i].product[0]=0;
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scsi_dev_desc[i].revision[0]=0;
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scsi_dev_desc[i].removable = false;
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scsi_dev_desc[i].if_type=IF_TYPE_SCSI;
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scsi_dev_desc[i].dev=i;
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scsi_dev_desc[i].part_type=PART_TYPE_UNKNOWN;
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scsi_dev_desc[i].block_read=scsi_read;
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scsi_dev_desc[i].block_write = scsi_write;
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}
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scsi_max_devs=0;
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for(i=0;i<CONFIG_SYS_SCSI_MAX_SCSI_ID;i++) {
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pccb->target=i;
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for(lun=0;lun<CONFIG_SYS_SCSI_MAX_LUN;lun++) {
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pccb->lun=lun;
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pccb->pdata=(unsigned char *)&tempbuff;
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pccb->datalen=512;
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scsi_setup_inquiry(pccb);
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if (scsi_exec(pccb) != true) {
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if(pccb->contr_stat==SCSI_SEL_TIME_OUT) {
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debug ("Selection timeout ID %d\n",pccb->target);
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continue; /* selection timeout => assuming no device present */
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}
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scsi_print_error(pccb);
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continue;
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}
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perq=tempbuff[0];
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modi=tempbuff[1];
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if((perq & 0x1f)==0x1f) {
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continue; /* skip unknown devices */
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}
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if((modi&0x80)==0x80) /* drive is removable */
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scsi_dev_desc[scsi_max_devs].removable=true;
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/* get info for this device */
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scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].vendor[0],
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&tempbuff[8], 8);
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scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].product[0],
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&tempbuff[16], 16);
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scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].revision[0],
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&tempbuff[32], 4);
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scsi_dev_desc[scsi_max_devs].target=pccb->target;
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scsi_dev_desc[scsi_max_devs].lun=pccb->lun;
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pccb->datalen=0;
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scsi_setup_test_unit_ready(pccb);
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if (scsi_exec(pccb) != true) {
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if (scsi_dev_desc[scsi_max_devs].removable == true) {
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scsi_dev_desc[scsi_max_devs].type=perq;
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goto removable;
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}
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scsi_print_error(pccb);
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continue;
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}
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if (scsi_read_capacity(pccb, &capacity, &blksz)) {
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scsi_print_error(pccb);
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continue;
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}
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scsi_dev_desc[scsi_max_devs].lba=capacity;
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scsi_dev_desc[scsi_max_devs].blksz=blksz;
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scsi_dev_desc[scsi_max_devs].log2blksz =
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LOG2(scsi_dev_desc[scsi_max_devs].blksz);
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scsi_dev_desc[scsi_max_devs].type=perq;
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init_part(&scsi_dev_desc[scsi_max_devs]);
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removable:
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if(mode==1) {
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printf (" Device %d: ", scsi_max_devs);
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dev_print(&scsi_dev_desc[scsi_max_devs]);
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} /* if mode */
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scsi_max_devs++;
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} /* next LUN */
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}
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if(scsi_max_devs>0)
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scsi_curr_dev=0;
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else
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scsi_curr_dev = -1;
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printf("Found %d device(s).\n", scsi_max_devs);
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#ifndef CONFIG_SPL_BUILD
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setenv_ulong("scsidevs", scsi_max_devs);
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#endif
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}
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int scsi_get_disk_count(void)
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{
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return scsi_max_devs;
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}
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#ifdef CONFIG_PCI
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void scsi_init(void)
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{
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int busdevfunc;
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int i;
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/*
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* Find a device from the list, this driver will support a single
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* controller.
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*/
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for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
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/* get PCI Device ID */
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busdevfunc = pci_find_device(scsi_device_list[i].vendor,
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scsi_device_list[i].device,
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0);
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if (busdevfunc != -1)
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break;
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}
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if (busdevfunc == -1) {
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printf("Error: SCSI Controller(s) ");
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for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
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printf("%04X:%04X ",
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scsi_device_list[i].vendor,
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scsi_device_list[i].device);
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}
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printf("not found\n");
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return;
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}
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#ifdef DEBUG
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else {
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printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n",
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scsi_device_list[i].vendor,
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scsi_device_list[i].device,
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(busdevfunc >> 16) & 0xFF,
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(busdevfunc >> 11) & 0x1F,
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(busdevfunc >> 8) & 0x7);
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}
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#endif
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bootstage_start(BOOTSTAGE_ID_ACCUM_SCSI, "ahci");
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scsi_low_level_init(busdevfunc);
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scsi_scan(1);
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bootstage_accum(BOOTSTAGE_ID_ACCUM_SCSI);
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}
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#endif
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#ifdef CONFIG_PARTITIONS
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block_dev_desc_t * scsi_get_dev(int dev)
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{
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return (dev < CONFIG_SYS_SCSI_MAX_DEVICE) ? &scsi_dev_desc[dev] : NULL;
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}
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#endif
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/******************************************************************************
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* scsi boot command intepreter. Derived from diskboot
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*/
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int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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return common_diskboot(cmdtp, "scsi", argc, argv);
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}
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/*********************************************************************************
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* scsi command intepreter
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*/
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int do_scsi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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switch (argc) {
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case 0:
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case 1:
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return CMD_RET_USAGE;
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case 2:
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if (strncmp(argv[1],"res",3) == 0) {
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printf("\nReset SCSI\n");
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scsi_bus_reset();
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scsi_scan(1);
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return 0;
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}
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if (strncmp(argv[1],"inf",3) == 0) {
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int i;
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for (i=0; i<CONFIG_SYS_SCSI_MAX_DEVICE; ++i) {
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if(scsi_dev_desc[i].type==DEV_TYPE_UNKNOWN)
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continue; /* list only known devices */
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printf ("SCSI dev. %d: ", i);
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dev_print(&scsi_dev_desc[i]);
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}
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return 0;
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}
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if (strncmp(argv[1],"dev",3) == 0) {
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if ((scsi_curr_dev < 0) || (scsi_curr_dev >= CONFIG_SYS_SCSI_MAX_DEVICE)) {
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printf("\nno SCSI devices available\n");
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return 1;
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}
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printf ("\n Device %d: ", scsi_curr_dev);
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dev_print(&scsi_dev_desc[scsi_curr_dev]);
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return 0;
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}
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if (strncmp(argv[1],"scan",4) == 0) {
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scsi_scan(1);
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return 0;
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}
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if (strncmp(argv[1],"part",4) == 0) {
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int dev, ok;
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for (ok=0, dev=0; dev<CONFIG_SYS_SCSI_MAX_DEVICE; ++dev) {
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if (scsi_dev_desc[dev].type!=DEV_TYPE_UNKNOWN) {
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ok++;
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if (dev)
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printf("\n");
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debug ("print_part of %x\n",dev);
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print_part(&scsi_dev_desc[dev]);
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}
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}
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if (!ok)
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printf("\nno SCSI devices available\n");
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return 1;
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}
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return CMD_RET_USAGE;
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case 3:
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if (strncmp(argv[1],"dev",3) == 0) {
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int dev = (int)simple_strtoul(argv[2], NULL, 10);
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printf ("\nSCSI device %d: ", dev);
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if (dev >= CONFIG_SYS_SCSI_MAX_DEVICE) {
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printf("unknown device\n");
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return 1;
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}
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printf ("\n Device %d: ", dev);
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dev_print(&scsi_dev_desc[dev]);
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if(scsi_dev_desc[dev].type == DEV_TYPE_UNKNOWN) {
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return 1;
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}
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scsi_curr_dev = dev;
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printf("... is now current device\n");
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return 0;
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}
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if (strncmp(argv[1],"part",4) == 0) {
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int dev = (int)simple_strtoul(argv[2], NULL, 10);
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if(scsi_dev_desc[dev].type != DEV_TYPE_UNKNOWN) {
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print_part(&scsi_dev_desc[dev]);
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}
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else {
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printf ("\nSCSI device %d not available\n", dev);
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}
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return 1;
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}
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return CMD_RET_USAGE;
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default:
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/* at least 4 args */
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if (strcmp(argv[1],"read") == 0) {
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ulong addr = simple_strtoul(argv[2], NULL, 16);
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ulong blk = simple_strtoul(argv[3], NULL, 16);
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ulong cnt = simple_strtoul(argv[4], NULL, 16);
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ulong n;
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printf ("\nSCSI read: device %d block # %ld, count %ld ... ",
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scsi_curr_dev, blk, cnt);
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n = scsi_read(scsi_curr_dev, blk, cnt, (ulong *)addr);
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printf ("%ld blocks read: %s\n",n,(n==cnt) ? "OK" : "ERROR");
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return 0;
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} else if (strcmp(argv[1], "write") == 0) {
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ulong addr = simple_strtoul(argv[2], NULL, 16);
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ulong blk = simple_strtoul(argv[3], NULL, 16);
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ulong cnt = simple_strtoul(argv[4], NULL, 16);
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ulong n;
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printf("\nSCSI write: device %d block # %ld, "
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"count %ld ... ",
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scsi_curr_dev, blk, cnt);
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n = scsi_write(scsi_curr_dev, blk, cnt,
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(ulong *)addr);
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printf("%ld blocks written: %s\n", n,
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(n == cnt) ? "OK" : "ERROR");
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return 0;
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}
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} /* switch */
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return CMD_RET_USAGE;
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}
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/****************************************************************************************
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* scsi_read
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*/
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#define SCSI_MAX_READ_BLK 0xFFFF /* almost the maximum amount of the scsi_ext command.. */
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static ulong scsi_read(int device, lbaint_t blknr, lbaint_t blkcnt,
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void *buffer)
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{
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lbaint_t start, blks;
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uintptr_t buf_addr;
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unsigned short smallblks;
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ccb* pccb=(ccb *)&tempccb;
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device&=0xff;
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/* Setup device
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*/
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pccb->target=scsi_dev_desc[device].target;
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pccb->lun=scsi_dev_desc[device].lun;
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buf_addr=(unsigned long)buffer;
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start=blknr;
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blks=blkcnt;
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debug("\nscsi_read: dev %d startblk " LBAF
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", blccnt " LBAF " buffer %lx\n",
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device, start, blks, (unsigned long)buffer);
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do {
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pccb->pdata=(unsigned char *)buf_addr;
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if(blks>SCSI_MAX_READ_BLK) {
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pccb->datalen=scsi_dev_desc[device].blksz * SCSI_MAX_READ_BLK;
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smallblks=SCSI_MAX_READ_BLK;
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scsi_setup_read_ext(pccb,start,smallblks);
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start+=SCSI_MAX_READ_BLK;
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blks-=SCSI_MAX_READ_BLK;
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}
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else {
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pccb->datalen=scsi_dev_desc[device].blksz * blks;
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smallblks=(unsigned short) blks;
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scsi_setup_read_ext(pccb,start,smallblks);
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start+=blks;
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blks=0;
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}
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debug("scsi_read_ext: startblk " LBAF
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", blccnt %x buffer %" PRIXPTR "\n",
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start, smallblks, buf_addr);
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if (scsi_exec(pccb) != true) {
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scsi_print_error(pccb);
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blkcnt-=blks;
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break;
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}
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buf_addr+=pccb->datalen;
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} while(blks!=0);
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debug("scsi_read_ext: end startblk " LBAF
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", blccnt %x buffer %" PRIXPTR "\n", start, smallblks, buf_addr);
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return(blkcnt);
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}
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/*******************************************************************************
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* scsi_write
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*/
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/* Almost the maximum amount of the scsi_ext command.. */
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#define SCSI_MAX_WRITE_BLK 0xFFFF
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static ulong scsi_write(int device, lbaint_t blknr,
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lbaint_t blkcnt, const void *buffer)
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{
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lbaint_t start, blks;
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uintptr_t buf_addr;
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unsigned short smallblks;
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ccb* pccb = (ccb *)&tempccb;
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device &= 0xff;
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/* Setup device
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*/
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pccb->target = scsi_dev_desc[device].target;
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pccb->lun = scsi_dev_desc[device].lun;
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buf_addr = (unsigned long)buffer;
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start = blknr;
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blks = blkcnt;
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debug("\n%s: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n",
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__func__, device, start, blks, (unsigned long)buffer);
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do {
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pccb->pdata = (unsigned char *)buf_addr;
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if (blks > SCSI_MAX_WRITE_BLK) {
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pccb->datalen = (scsi_dev_desc[device].blksz *
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SCSI_MAX_WRITE_BLK);
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smallblks = SCSI_MAX_WRITE_BLK;
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scsi_setup_write_ext(pccb, start, smallblks);
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start += SCSI_MAX_WRITE_BLK;
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blks -= SCSI_MAX_WRITE_BLK;
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} else {
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pccb->datalen = scsi_dev_desc[device].blksz * blks;
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smallblks = (unsigned short)blks;
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scsi_setup_write_ext(pccb, start, smallblks);
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start += blks;
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blks = 0;
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}
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debug("%s: startblk " LBAF ", blccnt %x buffer %" PRIXPTR "\n",
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__func__, start, smallblks, buf_addr);
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if (scsi_exec(pccb) != true) {
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scsi_print_error(pccb);
|
|
blkcnt -= blks;
|
|
break;
|
|
}
|
|
buf_addr += pccb->datalen;
|
|
} while (blks != 0);
|
|
debug("%s: end startblk " LBAF ", blccnt %x buffer %" PRIXPTR "\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"
|
|
);
|
|
|