blob: 52fd1080e61d8a61dd9079b01e40d39a243b7899 [file] [log] [blame]
Jin Zhengxiong4782ac82006-08-23 19:10:44 +08001/*
2 * Copyright (C) Freescale Semiconductor, Inc. 2006. All rights reserved.
3 * Author: Jason Jin<Jason.jin@freescale.com>
4 * Zhang Wei<wei.zhang@freescale.com>
5 *
6 * See file CREDITS for list of people who contributed to this
7 * project.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 * MA 02111-1307 USA
23 *
24 * with the reference on libata and ahci drvier in kernel
25 *
26 */
27#include <common.h>
28
Jin Zhengxiong4782ac82006-08-23 19:10:44 +080029#include <command.h>
30#include <pci.h>
31#include <asm/processor.h>
32#include <asm/errno.h>
33#include <asm/io.h>
34#include <malloc.h>
35#include <scsi.h>
36#include <ata.h>
37#include <linux/ctype.h>
38#include <ahci.h>
39
40struct ahci_probe_ent *probe_ent = NULL;
41hd_driveid_t *ataid[AHCI_MAX_PORTS];
42
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -050043#define writel_with_flush(a,b) do { writel(a,b); readl(b); } while (0)
44
Jin Zhengxiong4782ac82006-08-23 19:10:44 +080045
46static inline u32 ahci_port_base(u32 base, u32 port)
47{
48 return base + 0x100 + (port * 0x80);
49}
50
51
52static void ahci_setup_port(struct ahci_ioports *port, unsigned long base,
53 unsigned int port_idx)
54{
55 base = ahci_port_base(base, port_idx);
56
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -050057 port->cmd_addr = base;
58 port->scr_addr = base + PORT_SCR;
Jin Zhengxiong4782ac82006-08-23 19:10:44 +080059}
60
61
62#define msleep(a) udelay(a * 1000)
63#define ssleep(a) msleep(a * 1000)
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -050064
65static int waiting_for_cmd_completed(volatile u8 *offset,
66 int timeout_msec,
67 u32 sign)
Jin Zhengxiong4782ac82006-08-23 19:10:44 +080068{
69 int i;
70 u32 status;
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -050071
72 for (i = 0; ((status = readl(offset)) & sign) && i < timeout_msec; i++)
Jin Zhengxiong4782ac82006-08-23 19:10:44 +080073 msleep(1);
74
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -050075 return (i < timeout_msec) ? 0 : -1;
Jin Zhengxiong4782ac82006-08-23 19:10:44 +080076}
77
78
79static int ahci_host_init(struct ahci_probe_ent *probe_ent)
80{
81 pci_dev_t pdev = probe_ent->dev;
82 volatile u8 *mmio = (volatile u8 *)probe_ent->mmio_base;
83 u32 tmp, cap_save;
84 u16 tmp16;
85 int i, j;
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -050086 volatile u8 *port_mmio;
Jin Zhengxiong4782ac82006-08-23 19:10:44 +080087 unsigned short vendor;
88
89 cap_save = readl(mmio + HOST_CAP);
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -050090 cap_save &= ((1 << 28) | (1 << 17));
Jin Zhengxiong4782ac82006-08-23 19:10:44 +080091 cap_save |= (1 << 27);
92
93 /* global controller reset */
94 tmp = readl(mmio + HOST_CTL);
95 if ((tmp & HOST_RESET) == 0)
96 writel_with_flush(tmp | HOST_RESET, mmio + HOST_CTL);
97
98 /* reset must complete within 1 second, or
99 * the hardware should be considered fried.
100 */
101 ssleep(1);
102
103 tmp = readl(mmio + HOST_CTL);
104 if (tmp & HOST_RESET) {
105 debug("controller reset failed (0x%x)\n", tmp);
106 return -1;
107 }
108
109 writel_with_flush(HOST_AHCI_EN, mmio + HOST_CTL);
110 writel(cap_save, mmio + HOST_CAP);
111 writel_with_flush(0xf, mmio + HOST_PORTS_IMPL);
112
113 pci_read_config_word(pdev, PCI_VENDOR_ID, &vendor);
114
115 if (vendor == PCI_VENDOR_ID_INTEL) {
116 u16 tmp16;
117 pci_read_config_word(pdev, 0x92, &tmp16);
118 tmp16 |= 0xf;
119 pci_write_config_word(pdev, 0x92, tmp16);
120 }
121
122 probe_ent->cap = readl(mmio + HOST_CAP);
123 probe_ent->port_map = readl(mmio + HOST_PORTS_IMPL);
124 probe_ent->n_ports = (probe_ent->cap & 0x1f) + 1;
125
126 debug("cap 0x%x port_map 0x%x n_ports %d\n",
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500127 probe_ent->cap, probe_ent->port_map, probe_ent->n_ports);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800128
129 for (i = 0; i < probe_ent->n_ports; i++) {
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500130 probe_ent->port[i].port_mmio = ahci_port_base((u32) mmio, i);
131 port_mmio = (u8 *) probe_ent->port[i].port_mmio;
132 ahci_setup_port(&probe_ent->port[i], (unsigned long)mmio, i);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800133
134 /* make sure port is not active */
135 tmp = readl(port_mmio + PORT_CMD);
136 if (tmp & (PORT_CMD_LIST_ON | PORT_CMD_FIS_ON |
137 PORT_CMD_FIS_RX | PORT_CMD_START)) {
138 tmp &= ~(PORT_CMD_LIST_ON | PORT_CMD_FIS_ON |
139 PORT_CMD_FIS_RX | PORT_CMD_START);
140 writel_with_flush(tmp, port_mmio + PORT_CMD);
141
142 /* spec says 500 msecs for each bit, so
143 * this is slightly incorrect.
144 */
145 msleep(500);
146 }
147
148 writel(PORT_CMD_SPIN_UP, port_mmio + PORT_CMD);
149
150 j = 0;
151 while (j < 100) {
152 msleep(10);
153 tmp = readl(port_mmio + PORT_SCR_STAT);
154 if ((tmp & 0xf) == 0x3)
155 break;
156 j++;
157 }
158
159 tmp = readl(port_mmio + PORT_SCR_ERR);
160 debug("PORT_SCR_ERR 0x%x\n", tmp);
161 writel(tmp, port_mmio + PORT_SCR_ERR);
162
163 /* ack any pending irq events for this port */
164 tmp = readl(port_mmio + PORT_IRQ_STAT);
165 debug("PORT_IRQ_STAT 0x%x\n", tmp);
166 if (tmp)
167 writel(tmp, port_mmio + PORT_IRQ_STAT);
168
169 writel(1 << i, mmio + HOST_IRQ_STAT);
170
171 /* set irq mask (enables interrupts) */
172 writel(DEF_PORT_IRQ, port_mmio + PORT_IRQ_MASK);
173
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500174 /*register linkup ports */
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800175 tmp = readl(port_mmio + PORT_SCR_STAT);
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500176 debug("Port %d status: 0x%x\n", i, tmp);
177 if ((tmp & 0xf) == 0x03)
178 probe_ent->link_port_map |= (0x01 << i);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800179 }
180
181 tmp = readl(mmio + HOST_CTL);
182 debug("HOST_CTL 0x%x\n", tmp);
183 writel(tmp | HOST_IRQ_EN, mmio + HOST_CTL);
184 tmp = readl(mmio + HOST_CTL);
185 debug("HOST_CTL 0x%x\n", tmp);
186
187 pci_read_config_word(pdev, PCI_COMMAND, &tmp16);
188 tmp |= PCI_COMMAND_MASTER;
189 pci_write_config_word(pdev, PCI_COMMAND, tmp16);
190
191 return 0;
192}
193
194
195static void ahci_print_info(struct ahci_probe_ent *probe_ent)
196{
197 pci_dev_t pdev = probe_ent->dev;
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500198 volatile u8 *mmio = (volatile u8 *)probe_ent->mmio_base;
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800199 u32 vers, cap, impl, speed;
200 const char *speed_s;
201 u16 cc;
202 const char *scc_s;
203
204 vers = readl(mmio + HOST_VERSION);
205 cap = probe_ent->cap;
206 impl = probe_ent->port_map;
207
208 speed = (cap >> 20) & 0xf;
209 if (speed == 1)
210 speed_s = "1.5";
211 else if (speed == 2)
212 speed_s = "3";
213 else
214 speed_s = "?";
215
216 pci_read_config_word(pdev, 0x0a, &cc);
217 if (cc == 0x0101)
218 scc_s = "IDE";
219 else if (cc == 0x0106)
220 scc_s = "SATA";
221 else if (cc == 0x0104)
222 scc_s = "RAID";
223 else
224 scc_s = "unknown";
225
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500226 printf("AHCI %02x%02x.%02x%02x "
227 "%u slots %u ports %s Gbps 0x%x impl %s mode\n",
228 (vers >> 24) & 0xff,
229 (vers >> 16) & 0xff,
230 (vers >> 8) & 0xff,
231 vers & 0xff,
232 ((cap >> 8) & 0x1f) + 1, (cap & 0x1f) + 1, speed_s, impl, scc_s);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800233
234 printf("flags: "
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500235 "%s%s%s%s%s%s"
236 "%s%s%s%s%s%s%s\n",
237 cap & (1 << 31) ? "64bit " : "",
238 cap & (1 << 30) ? "ncq " : "",
239 cap & (1 << 28) ? "ilck " : "",
240 cap & (1 << 27) ? "stag " : "",
241 cap & (1 << 26) ? "pm " : "",
242 cap & (1 << 25) ? "led " : "",
243 cap & (1 << 24) ? "clo " : "",
244 cap & (1 << 19) ? "nz " : "",
245 cap & (1 << 18) ? "only " : "",
246 cap & (1 << 17) ? "pmp " : "",
247 cap & (1 << 15) ? "pio " : "",
248 cap & (1 << 14) ? "slum " : "",
249 cap & (1 << 13) ? "part " : "");
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800250}
251
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500252static int ahci_init_one(pci_dev_t pdev)
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800253{
Ed Swarthout63cec582007-08-02 14:09:49 -0500254 u32 iobase;
255 u16 vendor;
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800256 int rc;
257
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500258 memset((void *)ataid, 0, sizeof(hd_driveid_t *) * AHCI_MAX_PORTS);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800259
Ed Swarthout594e7982007-08-14 14:06:45 -0500260 probe_ent = malloc(sizeof(struct ahci_probe_ent));
261 memset(probe_ent, 0, sizeof(struct ahci_probe_ent));
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800262 probe_ent->dev = pdev;
263
264 pci_read_config_dword(pdev, AHCI_PCI_BAR, &iobase);
265 iobase &= ~0xf;
266
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500267 probe_ent->host_flags = ATA_FLAG_SATA
268 | ATA_FLAG_NO_LEGACY
269 | ATA_FLAG_MMIO
270 | ATA_FLAG_PIO_DMA
271 | ATA_FLAG_NO_ATAPI;
272 probe_ent->pio_mask = 0x1f;
273 probe_ent->udma_mask = 0x7f; /*Fixme,assume to support UDMA6 */
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800274
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500275 probe_ent->mmio_base = iobase;
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800276
277 /* Take from kernel:
278 * JMicron-specific fixup:
279 * make sure we're in AHCI mode
280 */
281 pci_read_config_word(pdev, PCI_VENDOR_ID, &vendor);
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500282 if (vendor == 0x197b)
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800283 pci_write_config_byte(pdev, 0x41, 0xa1);
284
285 /* initialize adapter */
286 rc = ahci_host_init(probe_ent);
287 if (rc)
288 goto err_out;
289
290 ahci_print_info(probe_ent);
291
292 return 0;
293
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500294 err_out:
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800295 return rc;
296}
297
298
299#define MAX_DATA_BYTE_COUNT (4*1024*1024)
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500300
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800301static int ahci_fill_sg(u8 port, unsigned char *buf, int buf_len)
302{
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800303 struct ahci_ioports *pp = &(probe_ent->port[port]);
304 struct ahci_sg *ahci_sg = pp->cmd_tbl_sg;
305 u32 sg_count;
306 int i;
307
308 sg_count = ((buf_len - 1) / MAX_DATA_BYTE_COUNT) + 1;
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500309 if (sg_count > AHCI_MAX_SG) {
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800310 printf("Error:Too much sg!\n");
311 return -1;
312 }
313
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500314 for (i = 0; i < sg_count; i++) {
315 ahci_sg->addr =
316 cpu_to_le32((u32) buf + i * MAX_DATA_BYTE_COUNT);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800317 ahci_sg->addr_hi = 0;
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500318 ahci_sg->flags_size = cpu_to_le32(0x3fffff &
319 (buf_len < MAX_DATA_BYTE_COUNT
320 ? (buf_len - 1)
321 : (MAX_DATA_BYTE_COUNT - 1)));
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800322 ahci_sg++;
323 buf_len -= MAX_DATA_BYTE_COUNT;
324 }
325
326 return sg_count;
327}
328
329
330static void ahci_fill_cmd_slot(struct ahci_ioports *pp, u32 opts)
331{
332 pp->cmd_slot->opts = cpu_to_le32(opts);
333 pp->cmd_slot->status = 0;
334 pp->cmd_slot->tbl_addr = cpu_to_le32(pp->cmd_tbl & 0xffffffff);
335 pp->cmd_slot->tbl_addr_hi = 0;
336}
337
338
339static void ahci_set_feature(u8 port)
340{
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800341 struct ahci_ioports *pp = &(probe_ent->port[port]);
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500342 volatile u8 *port_mmio = (volatile u8 *)pp->port_mmio;
343 u32 cmd_fis_len = 5; /* five dwords */
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800344 u8 fis[20];
345
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500346 /*set feature */
347 memset(fis, 0, 20);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800348 fis[0] = 0x27;
349 fis[1] = 1 << 7;
350 fis[2] = ATA_CMD_SETF;
351 fis[3] = SETFEATURES_XFER;
352 fis[12] = __ilog2(probe_ent->udma_mask + 1) + 0x40 - 0x01;
353
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500354 memcpy((unsigned char *)pp->cmd_tbl, fis, 20);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800355 ahci_fill_cmd_slot(pp, cmd_fis_len);
356 writel(1, port_mmio + PORT_CMD_ISSUE);
357 readl(port_mmio + PORT_CMD_ISSUE);
358
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500359 if (waiting_for_cmd_completed(port_mmio + PORT_CMD_ISSUE, 150, 0x1)) {
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800360 printf("set feature error!\n");
361 }
362}
363
364
365static int ahci_port_start(u8 port)
366{
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800367 struct ahci_ioports *pp = &(probe_ent->port[port]);
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500368 volatile u8 *port_mmio = (volatile u8 *)pp->port_mmio;
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800369 u32 port_status;
370 u32 mem;
371
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500372 debug("Enter start port: %d\n", port);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800373 port_status = readl(port_mmio + PORT_SCR_STAT);
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500374 debug("Port %d status: %x\n", port, port_status);
375 if ((port_status & 0xf) != 0x03) {
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800376 printf("No Link on this port!\n");
377 return -1;
378 }
379
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500380 mem = (u32) malloc(AHCI_PORT_PRIV_DMA_SZ + 2048);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800381 if (!mem) {
382 free(pp);
383 printf("No mem for table!\n");
384 return -ENOMEM;
385 }
386
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500387 mem = (mem + 0x800) & (~0x7ff); /* Aligned to 2048-bytes */
388 memset((u8 *) mem, 0, AHCI_PORT_PRIV_DMA_SZ);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800389
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800390 /*
391 * First item in chunk of DMA memory: 32-slot command table,
392 * 32 bytes each in size
393 */
394 pp->cmd_slot = (struct ahci_cmd_hdr *)mem;
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500395 debug("cmd_slot = 0x%x\n", pp->cmd_slot);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800396 mem += (AHCI_CMD_SLOT_SZ + 224);
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500397
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800398 /*
399 * Second item: Received-FIS area
400 */
401 pp->rx_fis = mem;
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800402 mem += AHCI_RX_FIS_SZ;
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500403
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800404 /*
405 * Third item: data area for storing a single command
406 * and its scatter-gather table
407 */
408 pp->cmd_tbl = mem;
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500409 debug("cmd_tbl_dma = 0x%x\n", pp->cmd_tbl);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800410
411 mem += AHCI_CMD_TBL_HDR;
412 pp->cmd_tbl_sg = (struct ahci_sg *)mem;
413
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500414 writel_with_flush((u32) pp->cmd_slot, port_mmio + PORT_LST_ADDR);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800415
416 writel_with_flush(pp->rx_fis, port_mmio + PORT_FIS_ADDR);
417
418 writel_with_flush(PORT_CMD_ICC_ACTIVE | PORT_CMD_FIS_RX |
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500419 PORT_CMD_POWER_ON | PORT_CMD_SPIN_UP |
420 PORT_CMD_START, port_mmio + PORT_CMD);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800421
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500422 debug("Exit start port %d\n", port);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800423
424 return 0;
425}
426
427
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500428static int get_ahci_device_data(u8 port, u8 *fis, int fis_len, u8 *buf,
429 int buf_len)
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800430{
431
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500432 struct ahci_ioports *pp = &(probe_ent->port[port]);
433 volatile u8 *port_mmio = (volatile u8 *)pp->port_mmio;
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800434 u32 opts;
435 u32 port_status;
436 int sg_count;
437
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500438 debug("Enter get_ahci_device_data: for port %d\n", port);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800439
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500440 if (port > probe_ent->n_ports) {
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800441 printf("Invaild port number %d\n", port);
442 return -1;
443 }
444
445 port_status = readl(port_mmio + PORT_SCR_STAT);
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500446 if ((port_status & 0xf) != 0x03) {
447 debug("No Link on port %d!\n", port);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800448 return -1;
449 }
450
451 memcpy((unsigned char *)pp->cmd_tbl, fis, fis_len);
452
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500453 sg_count = ahci_fill_sg(port, buf, buf_len);
454 opts = (fis_len >> 2) | (sg_count << 16);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800455 ahci_fill_cmd_slot(pp, opts);
456
457 writel_with_flush(1, port_mmio + PORT_CMD_ISSUE);
458
459 if (waiting_for_cmd_completed(port_mmio + PORT_CMD_ISSUE, 150, 0x1)) {
460 printf("timeout exit!\n");
461 return -1;
462 }
463 debug("get_ahci_device_data: %d byte transferred.\n",
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500464 pp->cmd_slot->status);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800465
466 return 0;
467}
468
469
470static char *ata_id_strcpy(u16 *target, u16 *src, int len)
471{
472 int i;
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500473 for (i = 0; i < len / 2; i++)
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800474 target[i] = le16_to_cpu(src[i]);
475 return (char *)target;
476}
477
478
479static void dump_ataid(hd_driveid_t *ataid)
480{
481 debug("(49)ataid->capability = 0x%x\n", ataid->capability);
482 debug("(53)ataid->field_valid =0x%x\n", ataid->field_valid);
483 debug("(63)ataid->dma_mword = 0x%x\n", ataid->dma_mword);
484 debug("(64)ataid->eide_pio_modes = 0x%x\n", ataid->eide_pio_modes);
485 debug("(75)ataid->queue_depth = 0x%x\n", ataid->queue_depth);
486 debug("(80)ataid->major_rev_num = 0x%x\n", ataid->major_rev_num);
487 debug("(81)ataid->minor_rev_num = 0x%x\n", ataid->minor_rev_num);
488 debug("(82)ataid->command_set_1 = 0x%x\n", ataid->command_set_1);
489 debug("(83)ataid->command_set_2 = 0x%x\n", ataid->command_set_2);
490 debug("(84)ataid->cfsse = 0x%x\n", ataid->cfsse);
491 debug("(85)ataid->cfs_enable_1 = 0x%x\n", ataid->cfs_enable_1);
492 debug("(86)ataid->cfs_enable_2 = 0x%x\n", ataid->cfs_enable_2);
493 debug("(87)ataid->csf_default = 0x%x\n", ataid->csf_default);
494 debug("(88)ataid->dma_ultra = 0x%x\n", ataid->dma_ultra);
495 debug("(93)ataid->hw_config = 0x%x\n", ataid->hw_config);
496}
497
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500498
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800499/*
500 * SCSI INQUIRY command operation.
501 */
502static int ata_scsiop_inquiry(ccb *pccb)
503{
504 u8 hdr[] = {
505 0,
506 0,
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500507 0x5, /* claim SPC-3 version compatibility */
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800508 2,
509 95 - 4,
510 };
511 u8 fis[20];
512 u8 *tmpid;
513 u8 port;
514
515 /* Clean ccb data buffer */
516 memset(pccb->pdata, 0, pccb->datalen);
517
518 memcpy(pccb->pdata, hdr, sizeof(hdr));
519
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500520 if (pccb->datalen <= 35)
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800521 return 0;
522
523 memset(fis, 0, 20);
524 /* Construct the FIS */
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500525 fis[0] = 0x27; /* Host to device FIS. */
526 fis[1] = 1 << 7; /* Command FIS. */
527 fis[2] = ATA_CMD_IDENT; /* Command byte. */
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800528
529 /* Read id from sata */
530 port = pccb->target;
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500531 if (!(tmpid = malloc(sizeof(hd_driveid_t))))
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800532 return -ENOMEM;
533
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500534 if (get_ahci_device_data(port, (u8 *) & fis, 20,
535 tmpid, sizeof(hd_driveid_t))) {
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800536 debug("scsi_ahci: SCSI inquiry command failure.\n");
537 return -EIO;
538 }
539
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500540 if (ataid[port])
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800541 free(ataid[port]);
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500542 ataid[port] = (hd_driveid_t *) tmpid;
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800543
544 memcpy(&pccb->pdata[8], "ATA ", 8);
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500545 ata_id_strcpy((u16 *) &pccb->pdata[16], (u16 *)ataid[port]->model, 16);
546 ata_id_strcpy((u16 *) &pccb->pdata[32], (u16 *)ataid[port]->fw_rev, 4);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800547
548 dump_ataid(ataid[port]);
549 return 0;
550}
551
552
553/*
554 * SCSI READ10 command operation.
555 */
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500556static int ata_scsiop_read10(ccb * pccb)
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800557{
558 u64 lba = 0;
559 u32 len = 0;
560 u8 fis[20];
561
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500562 lba = (((u64) pccb->cmd[2]) << 24) | (((u64) pccb->cmd[3]) << 16)
563 | (((u64) pccb->cmd[4]) << 8) | ((u64) pccb->cmd[5]);
564 len = (((u32) pccb->cmd[7]) << 8) | ((u32) pccb->cmd[8]);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800565
566 /* For 10-byte and 16-byte SCSI R/W commands, transfer
567 * length 0 means transfer 0 block of data.
568 * However, for ATA R/W commands, sector count 0 means
569 * 256 or 65536 sectors, not 0 sectors as in SCSI.
570 *
571 * WARNING: one or two older ATA drives treat 0 as 0...
572 */
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500573 if (!len)
574 return 0;
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800575 memset(fis, 0, 20);
576
577 /* Construct the FIS */
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500578 fis[0] = 0x27; /* Host to device FIS. */
579 fis[1] = 1 << 7; /* Command FIS. */
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800580 fis[2] = ATA_CMD_RD_DMA; /* Command byte. */
581
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500582 /* LBA address, only support LBA28 in this driver */
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800583 fis[4] = pccb->cmd[5];
584 fis[5] = pccb->cmd[4];
585 fis[6] = pccb->cmd[3];
586 fis[7] = (pccb->cmd[2] & 0x0f) | 0xe0;
587
588 /* Sector Count */
589 fis[12] = pccb->cmd[8];
590 fis[13] = pccb->cmd[7];
591
592 /* Read from ahci */
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500593 if (get_ahci_device_data(pccb->target, (u8 *) & fis, 20,
594 pccb->pdata, pccb->datalen)) {
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800595 debug("scsi_ahci: SCSI READ10 command failure.\n");
596 return -EIO;
597 }
598
599 return 0;
600}
601
602
603/*
604 * SCSI READ CAPACITY10 command operation.
605 */
606static int ata_scsiop_read_capacity10(ccb *pccb)
607{
608 u8 buf[8];
609
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500610 if (!ataid[pccb->target]) {
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800611 printf("scsi_ahci: SCSI READ CAPACITY10 command failure. "
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500612 "\tNo ATA info!\n"
613 "\tPlease run SCSI commmand INQUIRY firstly!\n");
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800614 return -EPERM;
615 }
616
617 memset(buf, 0, 8);
618
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500619 *(u32 *) buf = le32_to_cpu(ataid[pccb->target]->lba_capacity);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800620
621 buf[6] = 512 >> 8;
622 buf[7] = 512 & 0xff;
623
624 memcpy(pccb->pdata, buf, 8);
625
626 return 0;
627}
628
629
630/*
631 * SCSI TEST UNIT READY command operation.
632 */
633static int ata_scsiop_test_unit_ready(ccb *pccb)
634{
635 return (ataid[pccb->target]) ? 0 : -EPERM;
636}
637
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500638
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800639int scsi_exec(ccb *pccb)
640{
641 int ret;
642
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500643 switch (pccb->cmd[0]) {
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800644 case SCSI_READ10:
645 ret = ata_scsiop_read10(pccb);
646 break;
647 case SCSI_RD_CAPAC:
648 ret = ata_scsiop_read_capacity10(pccb);
649 break;
650 case SCSI_TST_U_RDY:
651 ret = ata_scsiop_test_unit_ready(pccb);
652 break;
653 case SCSI_INQUIRY:
654 ret = ata_scsiop_inquiry(pccb);
655 break;
656 default:
657 printf("Unsupport SCSI command 0x%02x\n", pccb->cmd[0]);
658 return FALSE;
659 }
660
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500661 if (ret) {
662 debug("SCSI command 0x%02x ret errno %d\n", pccb->cmd[0], ret);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800663 return FALSE;
664 }
665 return TRUE;
666
667}
668
669
670void scsi_low_level_init(int busdevfunc)
671{
672 int i;
673 u32 linkmap;
674
675 ahci_init_one(busdevfunc);
676
677 linkmap = probe_ent->link_port_map;
678
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500679 for (i = 0; i < CFG_SCSI_MAX_SCSI_ID; i++) {
680 if (((linkmap >> i) & 0x01)) {
681 if (ahci_port_start((u8) i)) {
682 printf("Can not start port %d\n", i);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800683 continue;
684 }
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500685 ahci_set_feature((u8) i);
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800686 }
687 }
688}
689
690
691void scsi_bus_reset(void)
692{
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500693 /*Not implement*/
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800694}
695
696
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500697void scsi_print_error(ccb * pccb)
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800698{
Jon Loeliger4a7cc0f2006-08-23 11:04:43 -0500699 /*The ahci error info can be read in the ahci driver*/
Jin Zhengxiong4782ac82006-08-23 19:10:44 +0800700}