blob: 0a3420b7fbc2b4931344d6d78b085ac1375e1eeb [file] [log] [blame]
Tom Rini10e47792018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Simon Glassc8e89ab2016-05-01 11:36:09 -06002/*
3 * (C) Copyright 2001
4 * Denis Peter, MPL AG Switzerland
Simon Glassc8e89ab2016-05-01 11:36:09 -06005 */
6
Simon Glass1af3eed2023-01-17 10:47:43 -07007#define LOG_CATEGORY UCLASS_SCSI
8
Simon Glassc8e89ab2016-05-01 11:36:09 -06009#include <common.h>
Simon Glass655306c2020-05-10 11:39:58 -060010#include <blk.h>
Simon Glass9985e9c2023-01-17 10:47:45 -070011#include <bootdev.h>
Simon Glass1ea97892020-05-10 11:40:00 -060012#include <bootstage.h>
Simon Glass5bf96dc2016-05-01 11:36:24 -060013#include <dm.h>
Simon Glass07dc93c2019-08-01 09:46:47 -060014#include <env.h>
Stefan Roesec52ee3e2021-04-07 09:12:36 +020015#include <libata.h>
Simon Glass0f2af882020-05-10 11:40:05 -060016#include <log.h>
Simon Glass655306c2020-05-10 11:39:58 -060017#include <part.h>
Simon Glassc8e89ab2016-05-01 11:36:09 -060018#include <pci.h>
19#include <scsi.h>
Michal Simekc886f352016-09-08 15:06:45 +020020#include <dm/device-internal.h>
21#include <dm/uclass-internal.h>
Simon Glassc8e89ab2016-05-01 11:36:09 -060022
Michal Simekc886f352016-09-08 15:06:45 +020023#if !defined(CONFIG_DM_SCSI)
Tom Rini6173acb2022-12-04 10:13:44 -050024# ifdef CFG_SCSI_DEV_LIST
25# define SCSI_DEV_LIST CFG_SCSI_DEV_LIST
Simon Glass0ada8912017-06-14 21:28:35 -060026# else
27# ifdef CONFIG_SATA_ULI5288
Simon Glassc8e89ab2016-05-01 11:36:09 -060028
Simon Glass0ada8912017-06-14 21:28:35 -060029# define SCSI_VEND_ID 0x10b9
30# define SCSI_DEV_ID 0x5288
Simon Glassc8e89ab2016-05-01 11:36:09 -060031
Simon Glass0ada8912017-06-14 21:28:35 -060032# elif !defined(CONFIG_SCSI_AHCI_PLAT)
33# error no scsi device defined
34# endif
35# define SCSI_DEV_LIST {SCSI_VEND_ID, SCSI_DEV_ID}
36# endif
Michal Simekc886f352016-09-08 15:06:45 +020037#endif
Simon Glassc8e89ab2016-05-01 11:36:09 -060038
Simon Glass57e7c2a2017-06-14 21:28:47 -060039#if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT) && \
40 !defined(CONFIG_DM_SCSI)
Simon Glassc8e89ab2016-05-01 11:36:09 -060041const struct pci_device_id scsi_device_list[] = { SCSI_DEV_LIST };
42#endif
Simon Glass5fb559d2017-06-14 21:28:30 -060043static struct scsi_cmd tempccb; /* temporary scsi command buffer */
Simon Glassc8e89ab2016-05-01 11:36:09 -060044
45static unsigned char tempbuff[512]; /* temporary data buffer */
46
Michal Simekc886f352016-09-08 15:06:45 +020047#if !defined(CONFIG_DM_SCSI)
Simon Glassc8e89ab2016-05-01 11:36:09 -060048static int scsi_max_devs; /* number of highest available scsi device */
49
50static int scsi_curr_dev; /* current device */
51
Simon Glass1a462242022-01-31 07:49:36 -070052static struct blk_desc scsi_dev_desc[SCSI_MAX_DEVICE];
Michal Simekc886f352016-09-08 15:06:45 +020053#endif
Simon Glassc8e89ab2016-05-01 11:36:09 -060054
55/* almost the maximum amount of the scsi_ext command.. */
Faiz Abbasb26c6142019-10-15 18:24:33 +053056#define SCSI_MAX_BLK 0xFFFF
Simon Glassc8e89ab2016-05-01 11:36:09 -060057#define SCSI_LBA48_READ 0xFFFFFFF
58
Simon Glass5fb559d2017-06-14 21:28:30 -060059static void scsi_print_error(struct scsi_cmd *pccb)
Simon Glass16740982017-06-14 21:28:23 -060060{
61 /* Dummy function that could print an error for debugging */
62}
63
Simon Glassc8e89ab2016-05-01 11:36:09 -060064#ifdef CONFIG_SYS_64BIT_LBA
Simon Glass5fb559d2017-06-14 21:28:30 -060065void scsi_setup_read16(struct scsi_cmd *pccb, lbaint_t start,
66 unsigned long blocks)
Simon Glassc8e89ab2016-05-01 11:36:09 -060067{
68 pccb->cmd[0] = SCSI_READ16;
69 pccb->cmd[1] = pccb->lun << 5;
70 pccb->cmd[2] = (unsigned char)(start >> 56) & 0xff;
71 pccb->cmd[3] = (unsigned char)(start >> 48) & 0xff;
72 pccb->cmd[4] = (unsigned char)(start >> 40) & 0xff;
73 pccb->cmd[5] = (unsigned char)(start >> 32) & 0xff;
74 pccb->cmd[6] = (unsigned char)(start >> 24) & 0xff;
75 pccb->cmd[7] = (unsigned char)(start >> 16) & 0xff;
76 pccb->cmd[8] = (unsigned char)(start >> 8) & 0xff;
77 pccb->cmd[9] = (unsigned char)start & 0xff;
78 pccb->cmd[10] = 0;
79 pccb->cmd[11] = (unsigned char)(blocks >> 24) & 0xff;
80 pccb->cmd[12] = (unsigned char)(blocks >> 16) & 0xff;
81 pccb->cmd[13] = (unsigned char)(blocks >> 8) & 0xff;
82 pccb->cmd[14] = (unsigned char)blocks & 0xff;
83 pccb->cmd[15] = 0;
84 pccb->cmdlen = 16;
85 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
86 debug("scsi_setup_read16: cmd: %02X %02X startblk %02X%02X%02X%02X%02X%02X%02X%02X blccnt %02X%02X%02X%02X\n",
87 pccb->cmd[0], pccb->cmd[1],
88 pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
89 pccb->cmd[6], pccb->cmd[7], pccb->cmd[8], pccb->cmd[9],
90 pccb->cmd[11], pccb->cmd[12], pccb->cmd[13], pccb->cmd[14]);
91}
92#endif
93
Faiz Abbas76a6fa62019-10-15 18:24:32 +053094static void scsi_setup_inquiry(struct scsi_cmd *pccb)
95{
96 pccb->cmd[0] = SCSI_INQUIRY;
97 pccb->cmd[1] = pccb->lun << 5;
98 pccb->cmd[2] = 0;
99 pccb->cmd[3] = 0;
100 if (pccb->datalen > 255)
101 pccb->cmd[4] = 255;
102 else
103 pccb->cmd[4] = (unsigned char)pccb->datalen;
104 pccb->cmd[5] = 0;
105 pccb->cmdlen = 6;
106 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
107}
108
109#ifdef CONFIG_BLK
Simon Glass5fb559d2017-06-14 21:28:30 -0600110static void scsi_setup_read_ext(struct scsi_cmd *pccb, lbaint_t start,
Michal Simek9ec32f32016-11-30 11:53:43 +0100111 unsigned short blocks)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600112{
113 pccb->cmd[0] = SCSI_READ10;
114 pccb->cmd[1] = pccb->lun << 5;
115 pccb->cmd[2] = (unsigned char)(start >> 24) & 0xff;
116 pccb->cmd[3] = (unsigned char)(start >> 16) & 0xff;
117 pccb->cmd[4] = (unsigned char)(start >> 8) & 0xff;
118 pccb->cmd[5] = (unsigned char)start & 0xff;
119 pccb->cmd[6] = 0;
120 pccb->cmd[7] = (unsigned char)(blocks >> 8) & 0xff;
121 pccb->cmd[8] = (unsigned char)blocks & 0xff;
122 pccb->cmd[6] = 0;
123 pccb->cmdlen = 10;
124 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
125 debug("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
126 pccb->cmd[0], pccb->cmd[1],
127 pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
128 pccb->cmd[7], pccb->cmd[8]);
129}
130
Simon Glass5fb559d2017-06-14 21:28:30 -0600131static void scsi_setup_write_ext(struct scsi_cmd *pccb, lbaint_t start,
Michal Simek9ec32f32016-11-30 11:53:43 +0100132 unsigned short blocks)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600133{
134 pccb->cmd[0] = SCSI_WRITE10;
135 pccb->cmd[1] = pccb->lun << 5;
136 pccb->cmd[2] = (unsigned char)(start >> 24) & 0xff;
137 pccb->cmd[3] = (unsigned char)(start >> 16) & 0xff;
138 pccb->cmd[4] = (unsigned char)(start >> 8) & 0xff;
139 pccb->cmd[5] = (unsigned char)start & 0xff;
140 pccb->cmd[6] = 0;
141 pccb->cmd[7] = ((unsigned char)(blocks >> 8)) & 0xff;
142 pccb->cmd[8] = (unsigned char)blocks & 0xff;
143 pccb->cmd[9] = 0;
144 pccb->cmdlen = 10;
145 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
146 debug("%s: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
147 __func__,
148 pccb->cmd[0], pccb->cmd[1],
149 pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
150 pccb->cmd[7], pccb->cmd[8]);
151}
152
Simon Glass5bf96dc2016-05-01 11:36:24 -0600153static ulong scsi_read(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
154 void *buffer)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600155{
Simon Glass71fa5b42020-12-03 16:55:18 -0700156 struct blk_desc *block_dev = dev_get_uclass_plat(dev);
Simon Glass11b2b622017-06-14 21:28:40 -0600157 struct udevice *bdev = dev->parent;
Simon Glassb75b15b2020-12-03 16:55:23 -0700158 struct scsi_plat *uc_plat = dev_get_uclass_plat(bdev);
Faiz Abbasb26c6142019-10-15 18:24:33 +0530159 lbaint_t start, blks, max_blks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600160 uintptr_t buf_addr;
161 unsigned short smallblks = 0;
Simon Glass5fb559d2017-06-14 21:28:30 -0600162 struct scsi_cmd *pccb = (struct scsi_cmd *)&tempccb;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600163
164 /* Setup device */
Michal Simekde6840a2016-11-18 16:22:42 +0100165 pccb->target = block_dev->target;
166 pccb->lun = block_dev->lun;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600167 buf_addr = (unsigned long)buffer;
168 start = blknr;
169 blks = blkcnt;
Faiz Abbasb26c6142019-10-15 18:24:33 +0530170 if (uc_plat->max_bytes_per_req)
171 max_blks = uc_plat->max_bytes_per_req / block_dev->blksz;
172 else
173 max_blks = SCSI_MAX_BLK;
174
Simon Glassc8e89ab2016-05-01 11:36:09 -0600175 debug("\nscsi_read: dev %d startblk " LBAF
176 ", blccnt " LBAF " buffer %lx\n",
Michal Simekde6840a2016-11-18 16:22:42 +0100177 block_dev->devnum, start, blks, (unsigned long)buffer);
Simon Glassc8e89ab2016-05-01 11:36:09 -0600178 do {
179 pccb->pdata = (unsigned char *)buf_addr;
Faiz Abbas20948092019-10-15 18:24:35 +0530180 pccb->dma_dir = DMA_FROM_DEVICE;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600181#ifdef CONFIG_SYS_64BIT_LBA
182 if (start > SCSI_LBA48_READ) {
183 unsigned long blocks;
Faiz Abbasb26c6142019-10-15 18:24:33 +0530184 blocks = min_t(lbaint_t, blks, max_blks);
Michal Simekde6840a2016-11-18 16:22:42 +0100185 pccb->datalen = block_dev->blksz * blocks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600186 scsi_setup_read16(pccb, start, blocks);
187 start += blocks;
188 blks -= blocks;
189 } else
190#endif
Faiz Abbasb26c6142019-10-15 18:24:33 +0530191 if (blks > max_blks) {
192 pccb->datalen = block_dev->blksz * max_blks;
193 smallblks = max_blks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600194 scsi_setup_read_ext(pccb, start, smallblks);
Faiz Abbasb26c6142019-10-15 18:24:33 +0530195 start += max_blks;
196 blks -= max_blks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600197 } else {
Michal Simekde6840a2016-11-18 16:22:42 +0100198 pccb->datalen = block_dev->blksz * blks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600199 smallblks = (unsigned short)blks;
200 scsi_setup_read_ext(pccb, start, smallblks);
201 start += blks;
202 blks = 0;
203 }
204 debug("scsi_read_ext: startblk " LBAF
Masahiro Yamadac7570a32018-08-06 20:47:40 +0900205 ", blccnt %x buffer %lX\n",
Simon Glassc8e89ab2016-05-01 11:36:09 -0600206 start, smallblks, buf_addr);
Simon Glass11b2b622017-06-14 21:28:40 -0600207 if (scsi_exec(bdev, pccb)) {
Simon Glassc8e89ab2016-05-01 11:36:09 -0600208 scsi_print_error(pccb);
209 blkcnt -= blks;
210 break;
211 }
212 buf_addr += pccb->datalen;
213 } while (blks != 0);
214 debug("scsi_read_ext: end startblk " LBAF
Masahiro Yamadac7570a32018-08-06 20:47:40 +0900215 ", blccnt %x buffer %lX\n", start, smallblks, buf_addr);
Simon Glassc8e89ab2016-05-01 11:36:09 -0600216 return blkcnt;
217}
218
219/*******************************************************************************
220 * scsi_write
221 */
222
Simon Glass5bf96dc2016-05-01 11:36:24 -0600223static ulong scsi_write(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
224 const void *buffer)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600225{
Simon Glass71fa5b42020-12-03 16:55:18 -0700226 struct blk_desc *block_dev = dev_get_uclass_plat(dev);
Simon Glass11b2b622017-06-14 21:28:40 -0600227 struct udevice *bdev = dev->parent;
Simon Glassb75b15b2020-12-03 16:55:23 -0700228 struct scsi_plat *uc_plat = dev_get_uclass_plat(bdev);
Faiz Abbasb26c6142019-10-15 18:24:33 +0530229 lbaint_t start, blks, max_blks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600230 uintptr_t buf_addr;
231 unsigned short smallblks;
Simon Glass5fb559d2017-06-14 21:28:30 -0600232 struct scsi_cmd *pccb = (struct scsi_cmd *)&tempccb;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600233
Simon Glassc8e89ab2016-05-01 11:36:09 -0600234 /* Setup device */
Michal Simekde6840a2016-11-18 16:22:42 +0100235 pccb->target = block_dev->target;
236 pccb->lun = block_dev->lun;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600237 buf_addr = (unsigned long)buffer;
238 start = blknr;
239 blks = blkcnt;
Faiz Abbasb26c6142019-10-15 18:24:33 +0530240 if (uc_plat->max_bytes_per_req)
241 max_blks = uc_plat->max_bytes_per_req / block_dev->blksz;
242 else
243 max_blks = SCSI_MAX_BLK;
244
Simon Glassc8e89ab2016-05-01 11:36:09 -0600245 debug("\n%s: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n",
Michal Simekde6840a2016-11-18 16:22:42 +0100246 __func__, block_dev->devnum, start, blks, (unsigned long)buffer);
Simon Glassc8e89ab2016-05-01 11:36:09 -0600247 do {
248 pccb->pdata = (unsigned char *)buf_addr;
Faiz Abbas20948092019-10-15 18:24:35 +0530249 pccb->dma_dir = DMA_TO_DEVICE;
Faiz Abbasb26c6142019-10-15 18:24:33 +0530250 if (blks > max_blks) {
251 pccb->datalen = block_dev->blksz * max_blks;
252 smallblks = max_blks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600253 scsi_setup_write_ext(pccb, start, smallblks);
Faiz Abbasb26c6142019-10-15 18:24:33 +0530254 start += max_blks;
255 blks -= max_blks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600256 } else {
Michal Simekde6840a2016-11-18 16:22:42 +0100257 pccb->datalen = block_dev->blksz * blks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600258 smallblks = (unsigned short)blks;
259 scsi_setup_write_ext(pccb, start, smallblks);
260 start += blks;
261 blks = 0;
262 }
Masahiro Yamadac7570a32018-08-06 20:47:40 +0900263 debug("%s: startblk " LBAF ", blccnt %x buffer %lx\n",
Simon Glassc8e89ab2016-05-01 11:36:09 -0600264 __func__, start, smallblks, buf_addr);
Simon Glass11b2b622017-06-14 21:28:40 -0600265 if (scsi_exec(bdev, pccb)) {
Simon Glassc8e89ab2016-05-01 11:36:09 -0600266 scsi_print_error(pccb);
267 blkcnt -= blks;
268 break;
269 }
270 buf_addr += pccb->datalen;
271 } while (blks != 0);
Masahiro Yamadac7570a32018-08-06 20:47:40 +0900272 debug("%s: end startblk " LBAF ", blccnt %x buffer %lX\n",
Simon Glassc8e89ab2016-05-01 11:36:09 -0600273 __func__, start, smallblks, buf_addr);
274 return blkcnt;
275}
Faiz Abbas76a6fa62019-10-15 18:24:32 +0530276#endif
Simon Glassc8e89ab2016-05-01 11:36:09 -0600277
Simon Glass57e7c2a2017-06-14 21:28:47 -0600278#if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT) && \
279 !defined(CONFIG_DM_SCSI)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600280void scsi_init(void)
281{
282 int busdevfunc = -1;
283 int i;
284 /*
285 * Find a device from the list, this driver will support a single
286 * controller.
287 */
288 for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
289 /* get PCI Device ID */
Simon Glassc8e89ab2016-05-01 11:36:09 -0600290 struct udevice *dev;
291 int ret;
292
293 ret = dm_pci_find_device(scsi_device_list[i].vendor,
294 scsi_device_list[i].device, 0, &dev);
295 if (!ret) {
296 busdevfunc = dm_pci_get_bdf(dev);
297 break;
298 }
Simon Glassc8e89ab2016-05-01 11:36:09 -0600299 if (busdevfunc != -1)
300 break;
301 }
302
303 if (busdevfunc == -1) {
304 printf("Error: SCSI Controller(s) ");
305 for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
306 printf("%04X:%04X ",
307 scsi_device_list[i].vendor,
308 scsi_device_list[i].device);
309 }
310 printf("not found\n");
311 return;
312 }
313#ifdef DEBUG
314 else {
315 printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n",
316 scsi_device_list[i].vendor,
317 scsi_device_list[i].device,
318 (busdevfunc >> 16) & 0xFF,
319 (busdevfunc >> 11) & 0x1F,
320 (busdevfunc >> 8) & 0x7);
321 }
322#endif
323 bootstage_start(BOOTSTAGE_ID_ACCUM_SCSI, "ahci");
324 scsi_low_level_init(busdevfunc);
Simon Glass48228732017-06-14 21:28:41 -0600325 scsi_scan(true);
Simon Glassc8e89ab2016-05-01 11:36:09 -0600326 bootstage_accum(BOOTSTAGE_ID_ACCUM_SCSI);
327}
328#endif
329
Simon Glassc8e89ab2016-05-01 11:36:09 -0600330/* copy src to dest, skipping leading and trailing blanks
331 * and null terminate the string
332 */
Michal Simek9ec32f32016-11-30 11:53:43 +0100333static void scsi_ident_cpy(unsigned char *dest, unsigned char *src,
334 unsigned int len)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600335{
336 int start, end;
337
338 start = 0;
339 while (start < len) {
340 if (src[start] != ' ')
341 break;
342 start++;
343 }
344 end = len-1;
345 while (end > start) {
346 if (src[end] != ' ')
347 break;
348 end--;
349 }
350 for (; start <= end; start++)
351 *dest ++= src[start];
352 *dest = '\0';
353}
354
Simon Glass11b2b622017-06-14 21:28:40 -0600355static int scsi_read_capacity(struct udevice *dev, struct scsi_cmd *pccb,
356 lbaint_t *capacity, unsigned long *blksz)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600357{
358 *capacity = 0;
359
360 memset(pccb->cmd, '\0', sizeof(pccb->cmd));
361 pccb->cmd[0] = SCSI_RD_CAPAC10;
362 pccb->cmd[1] = pccb->lun << 5;
363 pccb->cmdlen = 10;
364 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
365
366 pccb->datalen = 8;
Simon Glassa140e862017-06-14 21:28:44 -0600367 if (scsi_exec(dev, pccb))
Simon Glassc8e89ab2016-05-01 11:36:09 -0600368 return 1;
369
370 *capacity = ((lbaint_t)pccb->pdata[0] << 24) |
371 ((lbaint_t)pccb->pdata[1] << 16) |
372 ((lbaint_t)pccb->pdata[2] << 8) |
373 ((lbaint_t)pccb->pdata[3]);
374
375 if (*capacity != 0xffffffff) {
376 /* Read capacity (10) was sufficient for this drive. */
377 *blksz = ((unsigned long)pccb->pdata[4] << 24) |
378 ((unsigned long)pccb->pdata[5] << 16) |
379 ((unsigned long)pccb->pdata[6] << 8) |
380 ((unsigned long)pccb->pdata[7]);
381 return 0;
382 }
383
384 /* Read capacity (10) was insufficient. Use read capacity (16). */
385 memset(pccb->cmd, '\0', sizeof(pccb->cmd));
386 pccb->cmd[0] = SCSI_RD_CAPAC16;
387 pccb->cmd[1] = 0x10;
388 pccb->cmdlen = 16;
389 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
390
391 pccb->datalen = 16;
Faiz Abbas20948092019-10-15 18:24:35 +0530392 pccb->dma_dir = DMA_FROM_DEVICE;
Simon Glassa140e862017-06-14 21:28:44 -0600393 if (scsi_exec(dev, pccb))
Simon Glassc8e89ab2016-05-01 11:36:09 -0600394 return 1;
395
396 *capacity = ((uint64_t)pccb->pdata[0] << 56) |
397 ((uint64_t)pccb->pdata[1] << 48) |
398 ((uint64_t)pccb->pdata[2] << 40) |
399 ((uint64_t)pccb->pdata[3] << 32) |
400 ((uint64_t)pccb->pdata[4] << 24) |
401 ((uint64_t)pccb->pdata[5] << 16) |
402 ((uint64_t)pccb->pdata[6] << 8) |
403 ((uint64_t)pccb->pdata[7]);
404
405 *blksz = ((uint64_t)pccb->pdata[8] << 56) |
406 ((uint64_t)pccb->pdata[9] << 48) |
407 ((uint64_t)pccb->pdata[10] << 40) |
408 ((uint64_t)pccb->pdata[11] << 32) |
409 ((uint64_t)pccb->pdata[12] << 24) |
410 ((uint64_t)pccb->pdata[13] << 16) |
411 ((uint64_t)pccb->pdata[14] << 8) |
412 ((uint64_t)pccb->pdata[15]);
413
414 return 0;
415}
416
417
418/*
419 * Some setup (fill-in) routines
420 */
Simon Glass5fb559d2017-06-14 21:28:30 -0600421static void scsi_setup_test_unit_ready(struct scsi_cmd *pccb)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600422{
423 pccb->cmd[0] = SCSI_TST_U_RDY;
424 pccb->cmd[1] = pccb->lun << 5;
425 pccb->cmd[2] = 0;
426 pccb->cmd[3] = 0;
427 pccb->cmd[4] = 0;
428 pccb->cmd[5] = 0;
429 pccb->cmdlen = 6;
430 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
431}
432
Michal Simek6241b522016-11-30 12:50:58 +0100433/**
434 * scsi_init_dev_desc_priv - initialize only SCSI specific blk_desc properties
435 *
436 * @dev_desc: Block device description pointer
437 */
438static void scsi_init_dev_desc_priv(struct blk_desc *dev_desc)
Michal Simekac0a18d12016-11-18 15:27:00 +0100439{
440 dev_desc->target = 0xff;
441 dev_desc->lun = 0xff;
Michal Simekac0a18d12016-11-18 15:27:00 +0100442 dev_desc->log2blksz =
443 LOG2_INVALID(typeof(dev_desc->log2blksz));
444 dev_desc->type = DEV_TYPE_UNKNOWN;
445 dev_desc->vendor[0] = 0;
446 dev_desc->product[0] = 0;
447 dev_desc->revision[0] = 0;
448 dev_desc->removable = false;
Michal Simekac0a18d12016-11-18 15:27:00 +0100449}
450
Michal Simekc886f352016-09-08 15:06:45 +0200451#if !defined(CONFIG_DM_SCSI)
Michal Simek6241b522016-11-30 12:50:58 +0100452/**
453 * scsi_init_dev_desc - initialize all SCSI specific blk_desc properties
454 *
455 * @dev_desc: Block device description pointer
456 * @devnum: Device number
457 */
458static void scsi_init_dev_desc(struct blk_desc *dev_desc, int devnum)
459{
460 dev_desc->lba = 0;
461 dev_desc->blksz = 0;
Simon Glassfada3f92022-09-17 09:00:09 -0600462 dev_desc->uclass_id = UCLASS_SCSI;
Michal Simek6241b522016-11-30 12:50:58 +0100463 dev_desc->devnum = devnum;
464 dev_desc->part_type = PART_TYPE_UNKNOWN;
465
466 scsi_init_dev_desc_priv(dev_desc);
467}
Michal Simekc886f352016-09-08 15:06:45 +0200468#endif
Michal Simek40917492016-11-18 16:14:24 +0100469
Michal Simekebbde652016-11-18 15:42:13 +0100470/**
471 * scsi_detect_dev - Detect scsi device
472 *
Michal Simek40917492016-11-18 16:14:24 +0100473 * @target: target id
Jean-Jacques Hiblot0c447f02017-04-07 13:42:06 +0200474 * @lun: target lun
Michal Simekebbde652016-11-18 15:42:13 +0100475 * @dev_desc: block device description
Michal Simekebbde652016-11-18 15:42:13 +0100476 *
477 * The scsi_detect_dev detects and fills a dev_desc structure when the device is
Jean-Jacques Hiblot0c447f02017-04-07 13:42:06 +0200478 * detected.
Michal Simekebbde652016-11-18 15:42:13 +0100479 *
480 * Return: 0 on success, error value otherwise
481 */
Simon Glass11b2b622017-06-14 21:28:40 -0600482static int scsi_detect_dev(struct udevice *dev, int target, int lun,
483 struct blk_desc *dev_desc)
Michal Simekebbde652016-11-18 15:42:13 +0100484{
485 unsigned char perq, modi;
486 lbaint_t capacity;
487 unsigned long blksz;
Simon Glass5fb559d2017-06-14 21:28:30 -0600488 struct scsi_cmd *pccb = (struct scsi_cmd *)&tempccb;
Faiz Abbas3645a482019-10-15 18:24:34 +0530489 int count, err;
Michal Simekebbde652016-11-18 15:42:13 +0100490
Michal Simek40917492016-11-18 16:14:24 +0100491 pccb->target = target;
Jean-Jacques Hiblot0c447f02017-04-07 13:42:06 +0200492 pccb->lun = lun;
Michal Simekebbde652016-11-18 15:42:13 +0100493 pccb->pdata = (unsigned char *)&tempbuff;
494 pccb->datalen = 512;
Faiz Abbas20948092019-10-15 18:24:35 +0530495 pccb->dma_dir = DMA_FROM_DEVICE;
Michal Simekebbde652016-11-18 15:42:13 +0100496 scsi_setup_inquiry(pccb);
Simon Glassa140e862017-06-14 21:28:44 -0600497 if (scsi_exec(dev, pccb)) {
Michal Simekebbde652016-11-18 15:42:13 +0100498 if (pccb->contr_stat == SCSI_SEL_TIME_OUT) {
499 /*
500 * selection timeout => assuming no
501 * device present
502 */
503 debug("Selection timeout ID %d\n",
504 pccb->target);
505 return -ETIMEDOUT;
506 }
507 scsi_print_error(pccb);
508 return -ENODEV;
509 }
510 perq = tempbuff[0];
511 modi = tempbuff[1];
512 if ((perq & 0x1f) == 0x1f)
513 return -ENODEV; /* skip unknown devices */
514 if ((modi & 0x80) == 0x80) /* drive is removable */
515 dev_desc->removable = true;
516 /* get info for this device */
517 scsi_ident_cpy((unsigned char *)dev_desc->vendor,
518 &tempbuff[8], 8);
519 scsi_ident_cpy((unsigned char *)dev_desc->product,
520 &tempbuff[16], 16);
521 scsi_ident_cpy((unsigned char *)dev_desc->revision,
522 &tempbuff[32], 4);
523 dev_desc->target = pccb->target;
524 dev_desc->lun = pccb->lun;
525
Faiz Abbas3645a482019-10-15 18:24:34 +0530526 for (count = 0; count < 3; count++) {
527 pccb->datalen = 0;
528 scsi_setup_test_unit_ready(pccb);
529 err = scsi_exec(dev, pccb);
530 if (!err)
531 break;
532 }
533 if (err) {
Michal Simekebbde652016-11-18 15:42:13 +0100534 if (dev_desc->removable) {
535 dev_desc->type = perq;
536 goto removable;
537 }
538 scsi_print_error(pccb);
539 return -EINVAL;
540 }
Simon Glass11b2b622017-06-14 21:28:40 -0600541 if (scsi_read_capacity(dev, pccb, &capacity, &blksz)) {
Michal Simekebbde652016-11-18 15:42:13 +0100542 scsi_print_error(pccb);
543 return -EINVAL;
544 }
545 dev_desc->lba = capacity;
546 dev_desc->blksz = blksz;
547 dev_desc->log2blksz = LOG2(dev_desc->blksz);
548 dev_desc->type = perq;
Michal Simekebbde652016-11-18 15:42:13 +0100549removable:
550 return 0;
551}
552
Simon Glassc8e89ab2016-05-01 11:36:09 -0600553/*
554 * (re)-scan the scsi bus and reports scsi device info
555 * to the user if mode = 1
556 */
Michal Simekc886f352016-09-08 15:06:45 +0200557#if defined(CONFIG_DM_SCSI)
Simon Glass48228732017-06-14 21:28:41 -0600558static int do_scsi_scan_one(struct udevice *dev, int id, int lun, bool verbose)
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200559{
560 int ret;
561 struct udevice *bdev;
562 struct blk_desc bd;
563 struct blk_desc *bdesc;
Simon Glass1af3eed2023-01-17 10:47:43 -0700564 char str[10], *name;
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200565
566 /*
567 * detect the scsi driver to get information about its geometry (block
568 * size, number of blocks) and other parameters (ids, type, ...)
569 */
570 scsi_init_dev_desc_priv(&bd);
Simon Glass11b2b622017-06-14 21:28:40 -0600571 if (scsi_detect_dev(dev, id, lun, &bd))
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200572 return -ENODEV;
573
574 /*
575 * Create only one block device and do detection
576 * to make sure that there won't be a lot of
577 * block devices created
578 */
579 snprintf(str, sizeof(str), "id%dlun%d", id, lun);
Simon Glass1af3eed2023-01-17 10:47:43 -0700580 name = strdup(str);
581 if (!name)
582 return log_msg_ret("nam", -ENOMEM);
583 ret = blk_create_devicef(dev, "scsi_blk", name, UCLASS_SCSI, -1,
Simon Glassdbfa32c2022-08-11 19:34:59 -0600584 bd.blksz, bd.lba, &bdev);
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200585 if (ret) {
586 debug("Can't create device\n");
587 return ret;
588 }
Simon Glass1af3eed2023-01-17 10:47:43 -0700589 device_set_name_alloced(bdev);
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200590
Simon Glass71fa5b42020-12-03 16:55:18 -0700591 bdesc = dev_get_uclass_plat(bdev);
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200592 bdesc->target = id;
593 bdesc->lun = lun;
594 bdesc->removable = bd.removable;
595 bdesc->type = bd.type;
596 memcpy(&bdesc->vendor, &bd.vendor, sizeof(bd.vendor));
597 memcpy(&bdesc->product, &bd.product, sizeof(bd.product));
598 memcpy(&bdesc->revision, &bd.revision, sizeof(bd.revision));
Stefan Roesec52ee3e2021-04-07 09:12:36 +0200599 if (IS_ENABLED(CONFIG_SYS_BIG_ENDIAN)) {
600 ata_swap_buf_le16((u16 *)&bdesc->vendor, sizeof(bd.vendor) / 2);
601 ata_swap_buf_le16((u16 *)&bdesc->product, sizeof(bd.product) / 2);
602 ata_swap_buf_le16((u16 *)&bdesc->revision, sizeof(bd.revision) / 2);
603 }
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200604
AKASHI Takahiro368c3d52022-03-08 20:36:39 +0900605 ret = blk_probe_or_unbind(bdev);
606 if (ret < 0)
607 /* TODO: undo create */
Simon Glass9985e9c2023-01-17 10:47:45 -0700608 return log_msg_ret("pro", ret);
609
Simon Glassb1d581d2023-07-30 11:15:14 -0600610 ret = bootdev_setup_for_sibling_blk(bdev, "scsi_bootdev");
Simon Glass9985e9c2023-01-17 10:47:45 -0700611 if (ret)
612 return log_msg_ret("bd", ret);
AKASHI Takahiro368c3d52022-03-08 20:36:39 +0900613
Simon Glass48228732017-06-14 21:28:41 -0600614 if (verbose) {
Heinrich Schuchardtc5382b72019-02-05 18:06:24 +0100615 printf(" Device %d: ", bdesc->devnum);
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200616 dev_print(bdesc);
617 }
618 return 0;
619}
620
Simon Glass600d0012017-06-14 21:28:45 -0600621int scsi_scan_dev(struct udevice *dev, bool verbose)
622{
Simon Glassb75b15b2020-12-03 16:55:23 -0700623 struct scsi_plat *uc_plat; /* scsi controller plat */
Simon Glass600d0012017-06-14 21:28:45 -0600624 int ret;
625 int i;
626 int lun;
627
628 /* probe SCSI controller driver */
629 ret = device_probe(dev);
630 if (ret)
631 return ret;
632
Simon Glass71fa5b42020-12-03 16:55:18 -0700633 /* Get controller plat */
634 uc_plat = dev_get_uclass_plat(dev);
Simon Glass600d0012017-06-14 21:28:45 -0600635
636 for (i = 0; i < uc_plat->max_id; i++)
637 for (lun = 0; lun < uc_plat->max_lun; lun++)
638 do_scsi_scan_one(dev, i, lun, verbose);
639
640 return 0;
641}
642
Simon Glass48228732017-06-14 21:28:41 -0600643int scsi_scan(bool verbose)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600644{
Michal Simekc886f352016-09-08 15:06:45 +0200645 struct uclass *uc;
646 struct udevice *dev; /* SCSI controller */
Michal Simekebbde652016-11-18 15:42:13 +0100647 int ret;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600648
Simon Glass48228732017-06-14 21:28:41 -0600649 if (verbose)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600650 printf("scanning bus for devices...\n");
Michal Simekc886f352016-09-08 15:06:45 +0200651
652 ret = uclass_get(UCLASS_SCSI, &uc);
653 if (ret)
654 return ret;
655
Simon Glass01ed80a2023-01-17 10:47:44 -0700656 /* remove all children of the SCSI devices */
657 uclass_foreach_dev(dev, uc) {
658 log_debug("unbind %s\n", dev->name);
659 ret = device_chld_remove(dev, NULL, DM_REMOVE_NORMAL);
660 if (!ret)
661 ret = device_chld_unbind(dev, NULL);
662 if (ret) {
663 if (verbose)
664 printf("unable to unbind devices (%dE)\n", ret);
665 return log_msg_ret("unb", ret);
666 }
667 }
668
Michal Simekc886f352016-09-08 15:06:45 +0200669 uclass_foreach_dev(dev, uc) {
Simon Glass600d0012017-06-14 21:28:45 -0600670 ret = scsi_scan_dev(dev, verbose);
Michal Simekc886f352016-09-08 15:06:45 +0200671 if (ret)
672 return ret;
Michal Simekc886f352016-09-08 15:06:45 +0200673 }
674
675 return 0;
676}
677#else
Simon Glass48228732017-06-14 21:28:41 -0600678int scsi_scan(bool verbose)
Michal Simekc886f352016-09-08 15:06:45 +0200679{
680 unsigned char i, lun;
681 int ret;
682
Simon Glass48228732017-06-14 21:28:41 -0600683 if (verbose)
Michal Simekc886f352016-09-08 15:06:45 +0200684 printf("scanning bus for devices...\n");
Simon Glass1a462242022-01-31 07:49:36 -0700685 for (i = 0; i < SCSI_MAX_DEVICE; i++)
Michal Simekac0a18d12016-11-18 15:27:00 +0100686 scsi_init_dev_desc(&scsi_dev_desc[i], i);
687
Simon Glassc8e89ab2016-05-01 11:36:09 -0600688 scsi_max_devs = 0;
689 for (i = 0; i < CONFIG_SYS_SCSI_MAX_SCSI_ID; i++) {
Simon Glassc8e89ab2016-05-01 11:36:09 -0600690 for (lun = 0; lun < CONFIG_SYS_SCSI_MAX_LUN; lun++) {
Heinrich Schuchardtc5382b72019-02-05 18:06:24 +0100691 struct blk_desc *bdesc = &scsi_dev_desc[scsi_max_devs];
692
693 ret = scsi_detect_dev(NULL, i, lun, bdesc);
Michal Simekebbde652016-11-18 15:42:13 +0100694 if (ret)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600695 continue;
Heinrich Schuchardtc5382b72019-02-05 18:06:24 +0100696 part_init(bdesc);
Simon Glassc8e89ab2016-05-01 11:36:09 -0600697
Simon Glass48228732017-06-14 21:28:41 -0600698 if (verbose) {
Heinrich Schuchardtc5382b72019-02-05 18:06:24 +0100699 printf(" Device %d: ", bdesc->devnum);
700 dev_print(bdesc);
Simon Glass48228732017-06-14 21:28:41 -0600701 }
Simon Glassc8e89ab2016-05-01 11:36:09 -0600702 scsi_max_devs++;
703 } /* next LUN */
704 }
705 if (scsi_max_devs > 0)
706 scsi_curr_dev = 0;
707 else
708 scsi_curr_dev = -1;
709
710 printf("Found %d device(s).\n", scsi_max_devs);
711#ifndef CONFIG_SPL_BUILD
Simon Glass4d949a22017-08-03 12:22:10 -0600712 env_set_ulong("scsidevs", scsi_max_devs);
Simon Glassc8e89ab2016-05-01 11:36:09 -0600713#endif
Michal Simek5dc196f2016-11-30 12:12:31 +0100714 return 0;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600715}
Michal Simekc886f352016-09-08 15:06:45 +0200716#endif
Simon Glassc8e89ab2016-05-01 11:36:09 -0600717
Simon Glass5bf96dc2016-05-01 11:36:24 -0600718#ifdef CONFIG_BLK
719static const struct blk_ops scsi_blk_ops = {
720 .read = scsi_read,
721 .write = scsi_write,
722};
723
724U_BOOT_DRIVER(scsi_blk) = {
725 .name = "scsi_blk",
726 .id = UCLASS_BLK,
727 .ops = &scsi_blk_ops,
728};
729#else
Simon Glassc8e89ab2016-05-01 11:36:09 -0600730U_BOOT_LEGACY_BLK(scsi) = {
Simon Glassfada3f92022-09-17 09:00:09 -0600731 .uclass_idname = "scsi",
732 .uclass_id = UCLASS_SCSI,
Simon Glass1a462242022-01-31 07:49:36 -0700733 .max_devs = SCSI_MAX_DEVICE,
Simon Glassc8e89ab2016-05-01 11:36:09 -0600734 .desc = scsi_dev_desc,
735};
Simon Glass5bf96dc2016-05-01 11:36:24 -0600736#endif