blob: 779a34bd2f1ce8f022fea8f78fab078bf15bd4c8 [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>
Marek Vasut60b20b42023-08-07 02:26:12 +020017#include <memalign.h>
Simon Glass655306c2020-05-10 11:39:58 -060018#include <part.h>
Simon Glassc8e89ab2016-05-01 11:36:09 -060019#include <pci.h>
20#include <scsi.h>
Michal Simekc886f352016-09-08 15:06:45 +020021#include <dm/device-internal.h>
22#include <dm/uclass-internal.h>
Simon Glassc8e89ab2016-05-01 11:36:09 -060023
Michal Simekc886f352016-09-08 15:06:45 +020024#if !defined(CONFIG_DM_SCSI)
Tom Rini6173acb2022-12-04 10:13:44 -050025# ifdef CFG_SCSI_DEV_LIST
26# define SCSI_DEV_LIST CFG_SCSI_DEV_LIST
Simon Glass0ada8912017-06-14 21:28:35 -060027# else
28# ifdef CONFIG_SATA_ULI5288
Simon Glassc8e89ab2016-05-01 11:36:09 -060029
Simon Glass0ada8912017-06-14 21:28:35 -060030# define SCSI_VEND_ID 0x10b9
31# define SCSI_DEV_ID 0x5288
Simon Glassc8e89ab2016-05-01 11:36:09 -060032
Simon Glass0ada8912017-06-14 21:28:35 -060033# elif !defined(CONFIG_SCSI_AHCI_PLAT)
34# error no scsi device defined
35# endif
36# define SCSI_DEV_LIST {SCSI_VEND_ID, SCSI_DEV_ID}
37# endif
Michal Simekc886f352016-09-08 15:06:45 +020038#endif
Simon Glassc8e89ab2016-05-01 11:36:09 -060039
Simon Glass57e7c2a2017-06-14 21:28:47 -060040#if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT) && \
41 !defined(CONFIG_DM_SCSI)
Simon Glassc8e89ab2016-05-01 11:36:09 -060042const struct pci_device_id scsi_device_list[] = { SCSI_DEV_LIST };
43#endif
Simon Glass5fb559d2017-06-14 21:28:30 -060044static struct scsi_cmd tempccb; /* temporary scsi command buffer */
Simon Glassc8e89ab2016-05-01 11:36:09 -060045
Marek Vasut60b20b42023-08-07 02:26:12 +020046DEFINE_CACHE_ALIGN_BUFFER(u8, tempbuff, 512); /* temporary data buffer */
Simon Glassc8e89ab2016-05-01 11:36:09 -060047
Michal Simekc886f352016-09-08 15:06:45 +020048#if !defined(CONFIG_DM_SCSI)
Simon Glassc8e89ab2016-05-01 11:36:09 -060049static int scsi_max_devs; /* number of highest available scsi device */
50
51static int scsi_curr_dev; /* current device */
52
Simon Glass1a462242022-01-31 07:49:36 -070053static struct blk_desc scsi_dev_desc[SCSI_MAX_DEVICE];
Michal Simekc886f352016-09-08 15:06:45 +020054#endif
Simon Glassc8e89ab2016-05-01 11:36:09 -060055
56/* almost the maximum amount of the scsi_ext command.. */
Faiz Abbasb26c6142019-10-15 18:24:33 +053057#define SCSI_MAX_BLK 0xFFFF
Simon Glassc8e89ab2016-05-01 11:36:09 -060058#define SCSI_LBA48_READ 0xFFFFFFF
59
Simon Glass5fb559d2017-06-14 21:28:30 -060060static void scsi_print_error(struct scsi_cmd *pccb)
Simon Glass16740982017-06-14 21:28:23 -060061{
62 /* Dummy function that could print an error for debugging */
63}
64
Simon Glassc8e89ab2016-05-01 11:36:09 -060065#ifdef CONFIG_SYS_64BIT_LBA
Simon Glass5fb559d2017-06-14 21:28:30 -060066void scsi_setup_read16(struct scsi_cmd *pccb, lbaint_t start,
67 unsigned long blocks)
Simon Glassc8e89ab2016-05-01 11:36:09 -060068{
69 pccb->cmd[0] = SCSI_READ16;
70 pccb->cmd[1] = pccb->lun << 5;
71 pccb->cmd[2] = (unsigned char)(start >> 56) & 0xff;
72 pccb->cmd[3] = (unsigned char)(start >> 48) & 0xff;
73 pccb->cmd[4] = (unsigned char)(start >> 40) & 0xff;
74 pccb->cmd[5] = (unsigned char)(start >> 32) & 0xff;
75 pccb->cmd[6] = (unsigned char)(start >> 24) & 0xff;
76 pccb->cmd[7] = (unsigned char)(start >> 16) & 0xff;
77 pccb->cmd[8] = (unsigned char)(start >> 8) & 0xff;
78 pccb->cmd[9] = (unsigned char)start & 0xff;
79 pccb->cmd[10] = 0;
80 pccb->cmd[11] = (unsigned char)(blocks >> 24) & 0xff;
81 pccb->cmd[12] = (unsigned char)(blocks >> 16) & 0xff;
82 pccb->cmd[13] = (unsigned char)(blocks >> 8) & 0xff;
83 pccb->cmd[14] = (unsigned char)blocks & 0xff;
84 pccb->cmd[15] = 0;
85 pccb->cmdlen = 16;
86 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
87 debug("scsi_setup_read16: cmd: %02X %02X startblk %02X%02X%02X%02X%02X%02X%02X%02X blccnt %02X%02X%02X%02X\n",
88 pccb->cmd[0], pccb->cmd[1],
89 pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
90 pccb->cmd[6], pccb->cmd[7], pccb->cmd[8], pccb->cmd[9],
91 pccb->cmd[11], pccb->cmd[12], pccb->cmd[13], pccb->cmd[14]);
92}
93#endif
94
Faiz Abbas76a6fa62019-10-15 18:24:32 +053095static void scsi_setup_inquiry(struct scsi_cmd *pccb)
96{
97 pccb->cmd[0] = SCSI_INQUIRY;
98 pccb->cmd[1] = pccb->lun << 5;
99 pccb->cmd[2] = 0;
100 pccb->cmd[3] = 0;
101 if (pccb->datalen > 255)
102 pccb->cmd[4] = 255;
103 else
104 pccb->cmd[4] = (unsigned char)pccb->datalen;
105 pccb->cmd[5] = 0;
106 pccb->cmdlen = 6;
107 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
108}
109
110#ifdef CONFIG_BLK
Simon Glass5fb559d2017-06-14 21:28:30 -0600111static void scsi_setup_read_ext(struct scsi_cmd *pccb, lbaint_t start,
Michal Simek9ec32f32016-11-30 11:53:43 +0100112 unsigned short blocks)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600113{
114 pccb->cmd[0] = SCSI_READ10;
115 pccb->cmd[1] = pccb->lun << 5;
116 pccb->cmd[2] = (unsigned char)(start >> 24) & 0xff;
117 pccb->cmd[3] = (unsigned char)(start >> 16) & 0xff;
118 pccb->cmd[4] = (unsigned char)(start >> 8) & 0xff;
119 pccb->cmd[5] = (unsigned char)start & 0xff;
120 pccb->cmd[6] = 0;
121 pccb->cmd[7] = (unsigned char)(blocks >> 8) & 0xff;
122 pccb->cmd[8] = (unsigned char)blocks & 0xff;
123 pccb->cmd[6] = 0;
124 pccb->cmdlen = 10;
125 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
126 debug("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
127 pccb->cmd[0], pccb->cmd[1],
128 pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
129 pccb->cmd[7], pccb->cmd[8]);
130}
131
Simon Glass5fb559d2017-06-14 21:28:30 -0600132static void scsi_setup_write_ext(struct scsi_cmd *pccb, lbaint_t start,
Michal Simek9ec32f32016-11-30 11:53:43 +0100133 unsigned short blocks)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600134{
135 pccb->cmd[0] = SCSI_WRITE10;
136 pccb->cmd[1] = pccb->lun << 5;
137 pccb->cmd[2] = (unsigned char)(start >> 24) & 0xff;
138 pccb->cmd[3] = (unsigned char)(start >> 16) & 0xff;
139 pccb->cmd[4] = (unsigned char)(start >> 8) & 0xff;
140 pccb->cmd[5] = (unsigned char)start & 0xff;
141 pccb->cmd[6] = 0;
142 pccb->cmd[7] = ((unsigned char)(blocks >> 8)) & 0xff;
143 pccb->cmd[8] = (unsigned char)blocks & 0xff;
144 pccb->cmd[9] = 0;
145 pccb->cmdlen = 10;
146 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
147 debug("%s: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
148 __func__,
149 pccb->cmd[0], pccb->cmd[1],
150 pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
151 pccb->cmd[7], pccb->cmd[8]);
152}
153
Simon Glass5bf96dc2016-05-01 11:36:24 -0600154static ulong scsi_read(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
155 void *buffer)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600156{
Simon Glass71fa5b42020-12-03 16:55:18 -0700157 struct blk_desc *block_dev = dev_get_uclass_plat(dev);
Simon Glass11b2b622017-06-14 21:28:40 -0600158 struct udevice *bdev = dev->parent;
Simon Glassb75b15b2020-12-03 16:55:23 -0700159 struct scsi_plat *uc_plat = dev_get_uclass_plat(bdev);
Faiz Abbasb26c6142019-10-15 18:24:33 +0530160 lbaint_t start, blks, max_blks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600161 uintptr_t buf_addr;
162 unsigned short smallblks = 0;
Simon Glass5fb559d2017-06-14 21:28:30 -0600163 struct scsi_cmd *pccb = (struct scsi_cmd *)&tempccb;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600164
165 /* Setup device */
Michal Simekde6840a2016-11-18 16:22:42 +0100166 pccb->target = block_dev->target;
167 pccb->lun = block_dev->lun;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600168 buf_addr = (unsigned long)buffer;
169 start = blknr;
170 blks = blkcnt;
Faiz Abbasb26c6142019-10-15 18:24:33 +0530171 if (uc_plat->max_bytes_per_req)
172 max_blks = uc_plat->max_bytes_per_req / block_dev->blksz;
173 else
174 max_blks = SCSI_MAX_BLK;
175
Simon Glassc8e89ab2016-05-01 11:36:09 -0600176 debug("\nscsi_read: dev %d startblk " LBAF
177 ", blccnt " LBAF " buffer %lx\n",
Michal Simekde6840a2016-11-18 16:22:42 +0100178 block_dev->devnum, start, blks, (unsigned long)buffer);
Simon Glassc8e89ab2016-05-01 11:36:09 -0600179 do {
180 pccb->pdata = (unsigned char *)buf_addr;
Faiz Abbas20948092019-10-15 18:24:35 +0530181 pccb->dma_dir = DMA_FROM_DEVICE;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600182#ifdef CONFIG_SYS_64BIT_LBA
183 if (start > SCSI_LBA48_READ) {
184 unsigned long blocks;
Faiz Abbasb26c6142019-10-15 18:24:33 +0530185 blocks = min_t(lbaint_t, blks, max_blks);
Michal Simekde6840a2016-11-18 16:22:42 +0100186 pccb->datalen = block_dev->blksz * blocks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600187 scsi_setup_read16(pccb, start, blocks);
188 start += blocks;
189 blks -= blocks;
190 } else
191#endif
Faiz Abbasb26c6142019-10-15 18:24:33 +0530192 if (blks > max_blks) {
193 pccb->datalen = block_dev->blksz * max_blks;
194 smallblks = max_blks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600195 scsi_setup_read_ext(pccb, start, smallblks);
Faiz Abbasb26c6142019-10-15 18:24:33 +0530196 start += max_blks;
197 blks -= max_blks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600198 } else {
Michal Simekde6840a2016-11-18 16:22:42 +0100199 pccb->datalen = block_dev->blksz * blks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600200 smallblks = (unsigned short)blks;
201 scsi_setup_read_ext(pccb, start, smallblks);
202 start += blks;
203 blks = 0;
204 }
205 debug("scsi_read_ext: startblk " LBAF
Masahiro Yamadac7570a32018-08-06 20:47:40 +0900206 ", blccnt %x buffer %lX\n",
Simon Glassc8e89ab2016-05-01 11:36:09 -0600207 start, smallblks, buf_addr);
Simon Glass11b2b622017-06-14 21:28:40 -0600208 if (scsi_exec(bdev, pccb)) {
Simon Glassc8e89ab2016-05-01 11:36:09 -0600209 scsi_print_error(pccb);
210 blkcnt -= blks;
211 break;
212 }
213 buf_addr += pccb->datalen;
214 } while (blks != 0);
215 debug("scsi_read_ext: end startblk " LBAF
Masahiro Yamadac7570a32018-08-06 20:47:40 +0900216 ", blccnt %x buffer %lX\n", start, smallblks, buf_addr);
Simon Glassc8e89ab2016-05-01 11:36:09 -0600217 return blkcnt;
218}
219
220/*******************************************************************************
221 * scsi_write
222 */
223
Simon Glass5bf96dc2016-05-01 11:36:24 -0600224static ulong scsi_write(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
225 const void *buffer)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600226{
Simon Glass71fa5b42020-12-03 16:55:18 -0700227 struct blk_desc *block_dev = dev_get_uclass_plat(dev);
Simon Glass11b2b622017-06-14 21:28:40 -0600228 struct udevice *bdev = dev->parent;
Simon Glassb75b15b2020-12-03 16:55:23 -0700229 struct scsi_plat *uc_plat = dev_get_uclass_plat(bdev);
Faiz Abbasb26c6142019-10-15 18:24:33 +0530230 lbaint_t start, blks, max_blks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600231 uintptr_t buf_addr;
232 unsigned short smallblks;
Simon Glass5fb559d2017-06-14 21:28:30 -0600233 struct scsi_cmd *pccb = (struct scsi_cmd *)&tempccb;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600234
Simon Glassc8e89ab2016-05-01 11:36:09 -0600235 /* Setup device */
Michal Simekde6840a2016-11-18 16:22:42 +0100236 pccb->target = block_dev->target;
237 pccb->lun = block_dev->lun;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600238 buf_addr = (unsigned long)buffer;
239 start = blknr;
240 blks = blkcnt;
Faiz Abbasb26c6142019-10-15 18:24:33 +0530241 if (uc_plat->max_bytes_per_req)
242 max_blks = uc_plat->max_bytes_per_req / block_dev->blksz;
243 else
244 max_blks = SCSI_MAX_BLK;
245
Simon Glassc8e89ab2016-05-01 11:36:09 -0600246 debug("\n%s: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n",
Michal Simekde6840a2016-11-18 16:22:42 +0100247 __func__, block_dev->devnum, start, blks, (unsigned long)buffer);
Simon Glassc8e89ab2016-05-01 11:36:09 -0600248 do {
249 pccb->pdata = (unsigned char *)buf_addr;
Faiz Abbas20948092019-10-15 18:24:35 +0530250 pccb->dma_dir = DMA_TO_DEVICE;
Faiz Abbasb26c6142019-10-15 18:24:33 +0530251 if (blks > max_blks) {
252 pccb->datalen = block_dev->blksz * max_blks;
253 smallblks = max_blks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600254 scsi_setup_write_ext(pccb, start, smallblks);
Faiz Abbasb26c6142019-10-15 18:24:33 +0530255 start += max_blks;
256 blks -= max_blks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600257 } else {
Michal Simekde6840a2016-11-18 16:22:42 +0100258 pccb->datalen = block_dev->blksz * blks;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600259 smallblks = (unsigned short)blks;
260 scsi_setup_write_ext(pccb, start, smallblks);
261 start += blks;
262 blks = 0;
263 }
Masahiro Yamadac7570a32018-08-06 20:47:40 +0900264 debug("%s: startblk " LBAF ", blccnt %x buffer %lx\n",
Simon Glassc8e89ab2016-05-01 11:36:09 -0600265 __func__, start, smallblks, buf_addr);
Simon Glass11b2b622017-06-14 21:28:40 -0600266 if (scsi_exec(bdev, pccb)) {
Simon Glassc8e89ab2016-05-01 11:36:09 -0600267 scsi_print_error(pccb);
268 blkcnt -= blks;
269 break;
270 }
271 buf_addr += pccb->datalen;
272 } while (blks != 0);
Masahiro Yamadac7570a32018-08-06 20:47:40 +0900273 debug("%s: end startblk " LBAF ", blccnt %x buffer %lX\n",
Simon Glassc8e89ab2016-05-01 11:36:09 -0600274 __func__, start, smallblks, buf_addr);
275 return blkcnt;
276}
Marek Vasutb980e212023-08-14 01:50:00 +0200277
278#if IS_ENABLED(CONFIG_BOUNCE_BUFFER)
279static int scsi_buffer_aligned(struct udevice *dev, struct bounce_buffer *state)
280{
281 struct scsi_ops *ops = scsi_get_ops(dev->parent);
282
283 if (ops->buffer_aligned)
284 return ops->buffer_aligned(dev->parent, state);
285
286 return 1;
287}
288#endif /* CONFIG_BOUNCE_BUFFER */
Faiz Abbas76a6fa62019-10-15 18:24:32 +0530289#endif
Simon Glassc8e89ab2016-05-01 11:36:09 -0600290
Simon Glass57e7c2a2017-06-14 21:28:47 -0600291#if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT) && \
292 !defined(CONFIG_DM_SCSI)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600293void scsi_init(void)
294{
295 int busdevfunc = -1;
296 int i;
297 /*
298 * Find a device from the list, this driver will support a single
299 * controller.
300 */
301 for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
302 /* get PCI Device ID */
Simon Glassc8e89ab2016-05-01 11:36:09 -0600303 struct udevice *dev;
304 int ret;
305
306 ret = dm_pci_find_device(scsi_device_list[i].vendor,
307 scsi_device_list[i].device, 0, &dev);
308 if (!ret) {
309 busdevfunc = dm_pci_get_bdf(dev);
310 break;
311 }
Simon Glassc8e89ab2016-05-01 11:36:09 -0600312 if (busdevfunc != -1)
313 break;
314 }
315
316 if (busdevfunc == -1) {
317 printf("Error: SCSI Controller(s) ");
318 for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
319 printf("%04X:%04X ",
320 scsi_device_list[i].vendor,
321 scsi_device_list[i].device);
322 }
323 printf("not found\n");
324 return;
325 }
326#ifdef DEBUG
327 else {
328 printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n",
329 scsi_device_list[i].vendor,
330 scsi_device_list[i].device,
331 (busdevfunc >> 16) & 0xFF,
332 (busdevfunc >> 11) & 0x1F,
333 (busdevfunc >> 8) & 0x7);
334 }
335#endif
336 bootstage_start(BOOTSTAGE_ID_ACCUM_SCSI, "ahci");
337 scsi_low_level_init(busdevfunc);
Simon Glass48228732017-06-14 21:28:41 -0600338 scsi_scan(true);
Simon Glassc8e89ab2016-05-01 11:36:09 -0600339 bootstage_accum(BOOTSTAGE_ID_ACCUM_SCSI);
340}
341#endif
342
Simon Glassc8e89ab2016-05-01 11:36:09 -0600343/* copy src to dest, skipping leading and trailing blanks
344 * and null terminate the string
345 */
Michal Simek9ec32f32016-11-30 11:53:43 +0100346static void scsi_ident_cpy(unsigned char *dest, unsigned char *src,
347 unsigned int len)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600348{
349 int start, end;
350
351 start = 0;
352 while (start < len) {
353 if (src[start] != ' ')
354 break;
355 start++;
356 }
357 end = len-1;
358 while (end > start) {
359 if (src[end] != ' ')
360 break;
361 end--;
362 }
363 for (; start <= end; start++)
364 *dest ++= src[start];
365 *dest = '\0';
366}
367
Simon Glass11b2b622017-06-14 21:28:40 -0600368static int scsi_read_capacity(struct udevice *dev, struct scsi_cmd *pccb,
369 lbaint_t *capacity, unsigned long *blksz)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600370{
371 *capacity = 0;
372
373 memset(pccb->cmd, '\0', sizeof(pccb->cmd));
374 pccb->cmd[0] = SCSI_RD_CAPAC10;
375 pccb->cmd[1] = pccb->lun << 5;
376 pccb->cmdlen = 10;
377 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
378
379 pccb->datalen = 8;
Simon Glassa140e862017-06-14 21:28:44 -0600380 if (scsi_exec(dev, pccb))
Simon Glassc8e89ab2016-05-01 11:36:09 -0600381 return 1;
382
383 *capacity = ((lbaint_t)pccb->pdata[0] << 24) |
384 ((lbaint_t)pccb->pdata[1] << 16) |
385 ((lbaint_t)pccb->pdata[2] << 8) |
386 ((lbaint_t)pccb->pdata[3]);
387
388 if (*capacity != 0xffffffff) {
389 /* Read capacity (10) was sufficient for this drive. */
390 *blksz = ((unsigned long)pccb->pdata[4] << 24) |
391 ((unsigned long)pccb->pdata[5] << 16) |
392 ((unsigned long)pccb->pdata[6] << 8) |
393 ((unsigned long)pccb->pdata[7]);
394 return 0;
395 }
396
397 /* Read capacity (10) was insufficient. Use read capacity (16). */
398 memset(pccb->cmd, '\0', sizeof(pccb->cmd));
399 pccb->cmd[0] = SCSI_RD_CAPAC16;
400 pccb->cmd[1] = 0x10;
401 pccb->cmdlen = 16;
402 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
403
404 pccb->datalen = 16;
Faiz Abbas20948092019-10-15 18:24:35 +0530405 pccb->dma_dir = DMA_FROM_DEVICE;
Simon Glassa140e862017-06-14 21:28:44 -0600406 if (scsi_exec(dev, pccb))
Simon Glassc8e89ab2016-05-01 11:36:09 -0600407 return 1;
408
409 *capacity = ((uint64_t)pccb->pdata[0] << 56) |
410 ((uint64_t)pccb->pdata[1] << 48) |
411 ((uint64_t)pccb->pdata[2] << 40) |
412 ((uint64_t)pccb->pdata[3] << 32) |
413 ((uint64_t)pccb->pdata[4] << 24) |
414 ((uint64_t)pccb->pdata[5] << 16) |
415 ((uint64_t)pccb->pdata[6] << 8) |
416 ((uint64_t)pccb->pdata[7]);
417
418 *blksz = ((uint64_t)pccb->pdata[8] << 56) |
419 ((uint64_t)pccb->pdata[9] << 48) |
420 ((uint64_t)pccb->pdata[10] << 40) |
421 ((uint64_t)pccb->pdata[11] << 32) |
422 ((uint64_t)pccb->pdata[12] << 24) |
423 ((uint64_t)pccb->pdata[13] << 16) |
424 ((uint64_t)pccb->pdata[14] << 8) |
425 ((uint64_t)pccb->pdata[15]);
426
427 return 0;
428}
429
430
431/*
432 * Some setup (fill-in) routines
433 */
Simon Glass5fb559d2017-06-14 21:28:30 -0600434static void scsi_setup_test_unit_ready(struct scsi_cmd *pccb)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600435{
436 pccb->cmd[0] = SCSI_TST_U_RDY;
437 pccb->cmd[1] = pccb->lun << 5;
438 pccb->cmd[2] = 0;
439 pccb->cmd[3] = 0;
440 pccb->cmd[4] = 0;
441 pccb->cmd[5] = 0;
442 pccb->cmdlen = 6;
443 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
444}
445
Michal Simek6241b522016-11-30 12:50:58 +0100446/**
447 * scsi_init_dev_desc_priv - initialize only SCSI specific blk_desc properties
448 *
449 * @dev_desc: Block device description pointer
450 */
451static void scsi_init_dev_desc_priv(struct blk_desc *dev_desc)
Michal Simekac0a18d12016-11-18 15:27:00 +0100452{
453 dev_desc->target = 0xff;
454 dev_desc->lun = 0xff;
Michal Simekac0a18d12016-11-18 15:27:00 +0100455 dev_desc->log2blksz =
456 LOG2_INVALID(typeof(dev_desc->log2blksz));
457 dev_desc->type = DEV_TYPE_UNKNOWN;
458 dev_desc->vendor[0] = 0;
459 dev_desc->product[0] = 0;
460 dev_desc->revision[0] = 0;
461 dev_desc->removable = false;
Johan Jonker10a986c2023-10-18 16:01:10 +0200462#if IS_ENABLED(CONFIG_BOUNCE_BUFFER)
463 dev_desc->bb = true;
464#endif /* CONFIG_BOUNCE_BUFFER */
Michal Simekac0a18d12016-11-18 15:27:00 +0100465}
466
Michal Simekc886f352016-09-08 15:06:45 +0200467#if !defined(CONFIG_DM_SCSI)
Michal Simek6241b522016-11-30 12:50:58 +0100468/**
469 * scsi_init_dev_desc - initialize all SCSI specific blk_desc properties
470 *
471 * @dev_desc: Block device description pointer
472 * @devnum: Device number
473 */
474static void scsi_init_dev_desc(struct blk_desc *dev_desc, int devnum)
475{
476 dev_desc->lba = 0;
477 dev_desc->blksz = 0;
Simon Glassfada3f92022-09-17 09:00:09 -0600478 dev_desc->uclass_id = UCLASS_SCSI;
Michal Simek6241b522016-11-30 12:50:58 +0100479 dev_desc->devnum = devnum;
480 dev_desc->part_type = PART_TYPE_UNKNOWN;
481
482 scsi_init_dev_desc_priv(dev_desc);
483}
Michal Simekc886f352016-09-08 15:06:45 +0200484#endif
Michal Simek40917492016-11-18 16:14:24 +0100485
Michal Simekebbde652016-11-18 15:42:13 +0100486/**
487 * scsi_detect_dev - Detect scsi device
488 *
Michal Simek40917492016-11-18 16:14:24 +0100489 * @target: target id
Jean-Jacques Hiblot0c447f02017-04-07 13:42:06 +0200490 * @lun: target lun
Michal Simekebbde652016-11-18 15:42:13 +0100491 * @dev_desc: block device description
Michal Simekebbde652016-11-18 15:42:13 +0100492 *
493 * The scsi_detect_dev detects and fills a dev_desc structure when the device is
Jean-Jacques Hiblot0c447f02017-04-07 13:42:06 +0200494 * detected.
Michal Simekebbde652016-11-18 15:42:13 +0100495 *
496 * Return: 0 on success, error value otherwise
497 */
Simon Glass11b2b622017-06-14 21:28:40 -0600498static int scsi_detect_dev(struct udevice *dev, int target, int lun,
499 struct blk_desc *dev_desc)
Michal Simekebbde652016-11-18 15:42:13 +0100500{
501 unsigned char perq, modi;
502 lbaint_t capacity;
503 unsigned long blksz;
Simon Glass5fb559d2017-06-14 21:28:30 -0600504 struct scsi_cmd *pccb = (struct scsi_cmd *)&tempccb;
Faiz Abbas3645a482019-10-15 18:24:34 +0530505 int count, err;
Michal Simekebbde652016-11-18 15:42:13 +0100506
Michal Simek40917492016-11-18 16:14:24 +0100507 pccb->target = target;
Jean-Jacques Hiblot0c447f02017-04-07 13:42:06 +0200508 pccb->lun = lun;
Marek Vasut60b20b42023-08-07 02:26:12 +0200509 pccb->pdata = tempbuff;
Michal Simekebbde652016-11-18 15:42:13 +0100510 pccb->datalen = 512;
Faiz Abbas20948092019-10-15 18:24:35 +0530511 pccb->dma_dir = DMA_FROM_DEVICE;
Michal Simekebbde652016-11-18 15:42:13 +0100512 scsi_setup_inquiry(pccb);
Simon Glassa140e862017-06-14 21:28:44 -0600513 if (scsi_exec(dev, pccb)) {
Michal Simekebbde652016-11-18 15:42:13 +0100514 if (pccb->contr_stat == SCSI_SEL_TIME_OUT) {
515 /*
516 * selection timeout => assuming no
517 * device present
518 */
519 debug("Selection timeout ID %d\n",
520 pccb->target);
521 return -ETIMEDOUT;
522 }
523 scsi_print_error(pccb);
524 return -ENODEV;
525 }
526 perq = tempbuff[0];
527 modi = tempbuff[1];
528 if ((perq & 0x1f) == 0x1f)
529 return -ENODEV; /* skip unknown devices */
530 if ((modi & 0x80) == 0x80) /* drive is removable */
531 dev_desc->removable = true;
532 /* get info for this device */
533 scsi_ident_cpy((unsigned char *)dev_desc->vendor,
534 &tempbuff[8], 8);
535 scsi_ident_cpy((unsigned char *)dev_desc->product,
536 &tempbuff[16], 16);
537 scsi_ident_cpy((unsigned char *)dev_desc->revision,
538 &tempbuff[32], 4);
539 dev_desc->target = pccb->target;
540 dev_desc->lun = pccb->lun;
541
Faiz Abbas3645a482019-10-15 18:24:34 +0530542 for (count = 0; count < 3; count++) {
543 pccb->datalen = 0;
544 scsi_setup_test_unit_ready(pccb);
545 err = scsi_exec(dev, pccb);
546 if (!err)
547 break;
548 }
549 if (err) {
Michal Simekebbde652016-11-18 15:42:13 +0100550 if (dev_desc->removable) {
551 dev_desc->type = perq;
552 goto removable;
553 }
554 scsi_print_error(pccb);
555 return -EINVAL;
556 }
Simon Glass11b2b622017-06-14 21:28:40 -0600557 if (scsi_read_capacity(dev, pccb, &capacity, &blksz)) {
Michal Simekebbde652016-11-18 15:42:13 +0100558 scsi_print_error(pccb);
559 return -EINVAL;
560 }
561 dev_desc->lba = capacity;
562 dev_desc->blksz = blksz;
563 dev_desc->log2blksz = LOG2(dev_desc->blksz);
564 dev_desc->type = perq;
Michal Simekebbde652016-11-18 15:42:13 +0100565removable:
566 return 0;
567}
568
Simon Glassc8e89ab2016-05-01 11:36:09 -0600569/*
570 * (re)-scan the scsi bus and reports scsi device info
571 * to the user if mode = 1
572 */
Michal Simekc886f352016-09-08 15:06:45 +0200573#if defined(CONFIG_DM_SCSI)
Simon Glass48228732017-06-14 21:28:41 -0600574static int do_scsi_scan_one(struct udevice *dev, int id, int lun, bool verbose)
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200575{
576 int ret;
577 struct udevice *bdev;
578 struct blk_desc bd;
579 struct blk_desc *bdesc;
Simon Glass1af3eed2023-01-17 10:47:43 -0700580 char str[10], *name;
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200581
582 /*
583 * detect the scsi driver to get information about its geometry (block
584 * size, number of blocks) and other parameters (ids, type, ...)
585 */
586 scsi_init_dev_desc_priv(&bd);
Simon Glass11b2b622017-06-14 21:28:40 -0600587 if (scsi_detect_dev(dev, id, lun, &bd))
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200588 return -ENODEV;
589
590 /*
591 * Create only one block device and do detection
592 * to make sure that there won't be a lot of
593 * block devices created
594 */
595 snprintf(str, sizeof(str), "id%dlun%d", id, lun);
Simon Glass1af3eed2023-01-17 10:47:43 -0700596 name = strdup(str);
597 if (!name)
598 return log_msg_ret("nam", -ENOMEM);
599 ret = blk_create_devicef(dev, "scsi_blk", name, UCLASS_SCSI, -1,
Simon Glassdbfa32c2022-08-11 19:34:59 -0600600 bd.blksz, bd.lba, &bdev);
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200601 if (ret) {
602 debug("Can't create device\n");
603 return ret;
604 }
Simon Glass1af3eed2023-01-17 10:47:43 -0700605 device_set_name_alloced(bdev);
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200606
Simon Glass71fa5b42020-12-03 16:55:18 -0700607 bdesc = dev_get_uclass_plat(bdev);
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200608 bdesc->target = id;
609 bdesc->lun = lun;
610 bdesc->removable = bd.removable;
611 bdesc->type = bd.type;
Johan Jonker10a986c2023-10-18 16:01:10 +0200612 bdesc->bb = bd.bb;
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200613 memcpy(&bdesc->vendor, &bd.vendor, sizeof(bd.vendor));
614 memcpy(&bdesc->product, &bd.product, sizeof(bd.product));
615 memcpy(&bdesc->revision, &bd.revision, sizeof(bd.revision));
Stefan Roesec52ee3e2021-04-07 09:12:36 +0200616 if (IS_ENABLED(CONFIG_SYS_BIG_ENDIAN)) {
617 ata_swap_buf_le16((u16 *)&bdesc->vendor, sizeof(bd.vendor) / 2);
618 ata_swap_buf_le16((u16 *)&bdesc->product, sizeof(bd.product) / 2);
619 ata_swap_buf_le16((u16 *)&bdesc->revision, sizeof(bd.revision) / 2);
620 }
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200621
AKASHI Takahiro368c3d52022-03-08 20:36:39 +0900622 ret = blk_probe_or_unbind(bdev);
623 if (ret < 0)
624 /* TODO: undo create */
Simon Glass9985e9c2023-01-17 10:47:45 -0700625 return log_msg_ret("pro", ret);
626
Simon Glassb1d581d2023-07-30 11:15:14 -0600627 ret = bootdev_setup_for_sibling_blk(bdev, "scsi_bootdev");
Simon Glass9985e9c2023-01-17 10:47:45 -0700628 if (ret)
629 return log_msg_ret("bd", ret);
AKASHI Takahiro368c3d52022-03-08 20:36:39 +0900630
Simon Glass48228732017-06-14 21:28:41 -0600631 if (verbose) {
Heinrich Schuchardtc5382b72019-02-05 18:06:24 +0100632 printf(" Device %d: ", bdesc->devnum);
Jean-Jacques Hiblotcdf96eb2017-04-24 11:51:26 +0200633 dev_print(bdesc);
634 }
635 return 0;
636}
637
Simon Glass600d0012017-06-14 21:28:45 -0600638int scsi_scan_dev(struct udevice *dev, bool verbose)
639{
Simon Glassb75b15b2020-12-03 16:55:23 -0700640 struct scsi_plat *uc_plat; /* scsi controller plat */
Simon Glass600d0012017-06-14 21:28:45 -0600641 int ret;
642 int i;
643 int lun;
644
645 /* probe SCSI controller driver */
646 ret = device_probe(dev);
647 if (ret)
648 return ret;
649
Simon Glass71fa5b42020-12-03 16:55:18 -0700650 /* Get controller plat */
651 uc_plat = dev_get_uclass_plat(dev);
Simon Glass600d0012017-06-14 21:28:45 -0600652
653 for (i = 0; i < uc_plat->max_id; i++)
654 for (lun = 0; lun < uc_plat->max_lun; lun++)
655 do_scsi_scan_one(dev, i, lun, verbose);
656
657 return 0;
658}
659
Simon Glass48228732017-06-14 21:28:41 -0600660int scsi_scan(bool verbose)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600661{
Michal Simekc886f352016-09-08 15:06:45 +0200662 struct uclass *uc;
663 struct udevice *dev; /* SCSI controller */
Michal Simekebbde652016-11-18 15:42:13 +0100664 int ret;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600665
Simon Glass48228732017-06-14 21:28:41 -0600666 if (verbose)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600667 printf("scanning bus for devices...\n");
Michal Simekc886f352016-09-08 15:06:45 +0200668
669 ret = uclass_get(UCLASS_SCSI, &uc);
670 if (ret)
671 return ret;
672
Simon Glass01ed80a2023-01-17 10:47:44 -0700673 /* remove all children of the SCSI devices */
674 uclass_foreach_dev(dev, uc) {
675 log_debug("unbind %s\n", dev->name);
676 ret = device_chld_remove(dev, NULL, DM_REMOVE_NORMAL);
677 if (!ret)
678 ret = device_chld_unbind(dev, NULL);
679 if (ret) {
680 if (verbose)
681 printf("unable to unbind devices (%dE)\n", ret);
682 return log_msg_ret("unb", ret);
683 }
684 }
685
Michal Simekc886f352016-09-08 15:06:45 +0200686 uclass_foreach_dev(dev, uc) {
Simon Glass600d0012017-06-14 21:28:45 -0600687 ret = scsi_scan_dev(dev, verbose);
Michal Simekc886f352016-09-08 15:06:45 +0200688 if (ret)
689 return ret;
Michal Simekc886f352016-09-08 15:06:45 +0200690 }
691
692 return 0;
693}
694#else
Simon Glass48228732017-06-14 21:28:41 -0600695int scsi_scan(bool verbose)
Michal Simekc886f352016-09-08 15:06:45 +0200696{
697 unsigned char i, lun;
698 int ret;
699
Simon Glass48228732017-06-14 21:28:41 -0600700 if (verbose)
Michal Simekc886f352016-09-08 15:06:45 +0200701 printf("scanning bus for devices...\n");
Simon Glass1a462242022-01-31 07:49:36 -0700702 for (i = 0; i < SCSI_MAX_DEVICE; i++)
Michal Simekac0a18d12016-11-18 15:27:00 +0100703 scsi_init_dev_desc(&scsi_dev_desc[i], i);
704
Simon Glassc8e89ab2016-05-01 11:36:09 -0600705 scsi_max_devs = 0;
706 for (i = 0; i < CONFIG_SYS_SCSI_MAX_SCSI_ID; i++) {
Simon Glassc8e89ab2016-05-01 11:36:09 -0600707 for (lun = 0; lun < CONFIG_SYS_SCSI_MAX_LUN; lun++) {
Heinrich Schuchardtc5382b72019-02-05 18:06:24 +0100708 struct blk_desc *bdesc = &scsi_dev_desc[scsi_max_devs];
709
710 ret = scsi_detect_dev(NULL, i, lun, bdesc);
Michal Simekebbde652016-11-18 15:42:13 +0100711 if (ret)
Simon Glassc8e89ab2016-05-01 11:36:09 -0600712 continue;
Heinrich Schuchardtc5382b72019-02-05 18:06:24 +0100713 part_init(bdesc);
Simon Glassc8e89ab2016-05-01 11:36:09 -0600714
Simon Glass48228732017-06-14 21:28:41 -0600715 if (verbose) {
Heinrich Schuchardtc5382b72019-02-05 18:06:24 +0100716 printf(" Device %d: ", bdesc->devnum);
717 dev_print(bdesc);
Simon Glass48228732017-06-14 21:28:41 -0600718 }
Simon Glassc8e89ab2016-05-01 11:36:09 -0600719 scsi_max_devs++;
720 } /* next LUN */
721 }
722 if (scsi_max_devs > 0)
723 scsi_curr_dev = 0;
724 else
725 scsi_curr_dev = -1;
726
727 printf("Found %d device(s).\n", scsi_max_devs);
728#ifndef CONFIG_SPL_BUILD
Simon Glass4d949a22017-08-03 12:22:10 -0600729 env_set_ulong("scsidevs", scsi_max_devs);
Simon Glassc8e89ab2016-05-01 11:36:09 -0600730#endif
Michal Simek5dc196f2016-11-30 12:12:31 +0100731 return 0;
Simon Glassc8e89ab2016-05-01 11:36:09 -0600732}
Michal Simekc886f352016-09-08 15:06:45 +0200733#endif
Simon Glassc8e89ab2016-05-01 11:36:09 -0600734
Simon Glass5bf96dc2016-05-01 11:36:24 -0600735#ifdef CONFIG_BLK
736static const struct blk_ops scsi_blk_ops = {
737 .read = scsi_read,
738 .write = scsi_write,
Marek Vasutb980e212023-08-14 01:50:00 +0200739#if IS_ENABLED(CONFIG_BOUNCE_BUFFER)
740 .buffer_aligned = scsi_buffer_aligned,
741#endif /* CONFIG_BOUNCE_BUFFER */
Simon Glass5bf96dc2016-05-01 11:36:24 -0600742};
743
744U_BOOT_DRIVER(scsi_blk) = {
745 .name = "scsi_blk",
746 .id = UCLASS_BLK,
747 .ops = &scsi_blk_ops,
748};
749#else
Simon Glassc8e89ab2016-05-01 11:36:09 -0600750U_BOOT_LEGACY_BLK(scsi) = {
Simon Glassfada3f92022-09-17 09:00:09 -0600751 .uclass_idname = "scsi",
752 .uclass_id = UCLASS_SCSI,
Simon Glass1a462242022-01-31 07:49:36 -0700753 .max_devs = SCSI_MAX_DEVICE,
Simon Glassc8e89ab2016-05-01 11:36:09 -0600754 .desc = scsi_dev_desc,
755};
Simon Glass5bf96dc2016-05-01 11:36:24 -0600756#endif