]>
Commit | Line | Data |
---|---|---|
1 | /** @file\r | |
2 | *\r | |
3 | * Copyright (c) 2011-2015, ARM Limited. All rights reserved.\r | |
4 | *\r | |
5 | * This program and the accompanying materials\r | |
6 | * are licensed and made available under the terms and conditions of the BSD License\r | |
7 | * which accompanies this distribution. The full text of the license may be found at\r | |
8 | * http://opensource.org/licenses/bsd-license.php\r | |
9 | *\r | |
10 | * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | *\r | |
13 | **/\r | |
14 | \r | |
15 | #include <Library/BaseMemoryLib.h>\r | |
16 | #include <Library/TimerLib.h>\r | |
17 | \r | |
18 | #include "Mmc.h"\r | |
19 | \r | |
20 | typedef union {\r | |
21 | UINT32 Raw;\r | |
22 | OCR Ocr;\r | |
23 | } OCR_RESPONSE;\r | |
24 | \r | |
25 | #define MAX_RETRY_COUNT 1000\r | |
26 | #define CMD_RETRY_COUNT 20\r | |
27 | #define RCA_SHIFT_OFFSET 16\r | |
28 | #define EMMC_CARD_SIZE 512\r | |
29 | #define EMMC_ECSD_SIZE_OFFSET 53\r | |
30 | \r | |
31 | #define EXTCSD_BUS_WIDTH 183\r | |
32 | #define EXTCSD_HS_TIMING 185\r | |
33 | \r | |
34 | #define EMMC_TIMING_BACKWARD 0\r | |
35 | #define EMMC_TIMING_HS 1\r | |
36 | #define EMMC_TIMING_HS200 2\r | |
37 | #define EMMC_TIMING_HS400 3\r | |
38 | \r | |
39 | #define EMMC_BUS_WIDTH_1BIT 0\r | |
40 | #define EMMC_BUS_WIDTH_4BIT 1\r | |
41 | #define EMMC_BUS_WIDTH_8BIT 2\r | |
42 | #define EMMC_BUS_WIDTH_DDR_4BIT 5\r | |
43 | #define EMMC_BUS_WIDTH_DDR_8BIT 6\r | |
44 | \r | |
45 | #define EMMC_SWITCH_ERROR (1 << 7)\r | |
46 | \r | |
47 | #define SD_BUS_WIDTH_1BIT (1 << 0)\r | |
48 | #define SD_BUS_WIDTH_4BIT (1 << 2)\r | |
49 | \r | |
50 | #define SD_CCC_SWITCH (1 << 10)\r | |
51 | \r | |
52 | #define DEVICE_STATE(x) (((x) >> 9) & 0xf)\r | |
53 | typedef enum _EMMC_DEVICE_STATE {\r | |
54 | EMMC_IDLE_STATE = 0,\r | |
55 | EMMC_READY_STATE,\r | |
56 | EMMC_IDENT_STATE,\r | |
57 | EMMC_STBY_STATE,\r | |
58 | EMMC_TRAN_STATE,\r | |
59 | EMMC_DATA_STATE,\r | |
60 | EMMC_RCV_STATE,\r | |
61 | EMMC_PRG_STATE,\r | |
62 | EMMC_DIS_STATE,\r | |
63 | EMMC_BTST_STATE,\r | |
64 | EMMC_SLP_STATE\r | |
65 | } EMMC_DEVICE_STATE;\r | |
66 | \r | |
67 | UINT32 mEmmcRcaCount = 0;\r | |
68 | \r | |
69 | STATIC\r | |
70 | EFI_STATUS\r | |
71 | EFIAPI\r | |
72 | EmmcGetDeviceState (\r | |
73 | IN MMC_HOST_INSTANCE *MmcHostInstance,\r | |
74 | OUT EMMC_DEVICE_STATE *State\r | |
75 | )\r | |
76 | {\r | |
77 | EFI_MMC_HOST_PROTOCOL *Host;\r | |
78 | EFI_STATUS Status;\r | |
79 | UINT32 Data, RCA;\r | |
80 | \r | |
81 | if (State == NULL) {\r | |
82 | return EFI_INVALID_PARAMETER;\r | |
83 | }\r | |
84 | \r | |
85 | Host = MmcHostInstance->MmcHost;\r | |
86 | RCA = MmcHostInstance->CardInfo.RCA << RCA_SHIFT_OFFSET;\r | |
87 | Status = Host->SendCommand (Host, MMC_CMD13, RCA);\r | |
88 | if (EFI_ERROR (Status)) {\r | |
89 | DEBUG ((EFI_D_ERROR, "EmmcGetDeviceState(): Failed to get card status, Status=%r.\n", Status));\r | |
90 | return Status;\r | |
91 | }\r | |
92 | Status = Host->ReceiveResponse (Host, MMC_RESPONSE_TYPE_R1, &Data);\r | |
93 | if (EFI_ERROR (Status)) {\r | |
94 | DEBUG ((EFI_D_ERROR, "EmmcGetDeviceState(): Failed to get response of CMD13, Status=%r.\n", Status));\r | |
95 | return Status;\r | |
96 | }\r | |
97 | if (Data & EMMC_SWITCH_ERROR) {\r | |
98 | DEBUG ((EFI_D_ERROR, "EmmcGetDeviceState(): Failed to switch expected mode, Status=%r.\n", Status));\r | |
99 | return EFI_DEVICE_ERROR;\r | |
100 | }\r | |
101 | *State = DEVICE_STATE(Data);\r | |
102 | return EFI_SUCCESS;\r | |
103 | }\r | |
104 | \r | |
105 | STATIC\r | |
106 | EFI_STATUS\r | |
107 | EFIAPI\r | |
108 | EmmcSetEXTCSD (\r | |
109 | IN MMC_HOST_INSTANCE *MmcHostInstance,\r | |
110 | UINT32 ExtCmdIndex,\r | |
111 | UINT32 Value\r | |
112 | )\r | |
113 | {\r | |
114 | EFI_MMC_HOST_PROTOCOL *Host;\r | |
115 | EMMC_DEVICE_STATE State;\r | |
116 | EFI_STATUS Status;\r | |
117 | UINT32 Argument;\r | |
118 | \r | |
119 | Host = MmcHostInstance->MmcHost;\r | |
120 | Argument = EMMC_CMD6_ARG_ACCESS(3) | EMMC_CMD6_ARG_INDEX(ExtCmdIndex) |\r | |
121 | EMMC_CMD6_ARG_VALUE(Value) | EMMC_CMD6_ARG_CMD_SET(1);\r | |
122 | Status = Host->SendCommand (Host, MMC_CMD6, Argument);\r | |
123 | if (EFI_ERROR (Status)) {\r | |
124 | DEBUG ((EFI_D_ERROR, "EmmcSetEXTCSD(): Failed to send CMD6, Status=%r.\n", Status));\r | |
125 | return Status;\r | |
126 | }\r | |
127 | // Make sure device exiting prog mode\r | |
128 | do {\r | |
129 | Status = EmmcGetDeviceState (MmcHostInstance, &State);\r | |
130 | if (EFI_ERROR (Status)) {\r | |
131 | DEBUG ((EFI_D_ERROR, "EmmcSetEXTCSD(): Failed to get device state, Status=%r.\n", Status));\r | |
132 | return Status;\r | |
133 | }\r | |
134 | } while (State == EMMC_PRG_STATE);\r | |
135 | return EFI_SUCCESS;\r | |
136 | }\r | |
137 | \r | |
138 | STATIC\r | |
139 | EFI_STATUS\r | |
140 | EFIAPI\r | |
141 | EmmcIdentificationMode (\r | |
142 | IN MMC_HOST_INSTANCE *MmcHostInstance,\r | |
143 | IN OCR_RESPONSE Response\r | |
144 | )\r | |
145 | {\r | |
146 | EFI_MMC_HOST_PROTOCOL *Host;\r | |
147 | EFI_BLOCK_IO_MEDIA *Media;\r | |
148 | EFI_STATUS Status;\r | |
149 | EMMC_DEVICE_STATE State;\r | |
150 | UINT32 RCA;\r | |
151 | \r | |
152 | Host = MmcHostInstance->MmcHost;\r | |
153 | Media = MmcHostInstance->BlockIo.Media;\r | |
154 | \r | |
155 | // Fetch card identity register\r | |
156 | Status = Host->SendCommand (Host, MMC_CMD2, 0);\r | |
157 | if (EFI_ERROR (Status)) {\r | |
158 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): Failed to send CMD2, Status=%r.\n", Status));\r | |
159 | return Status;\r | |
160 | }\r | |
161 | \r | |
162 | Status = Host->ReceiveResponse (Host, MMC_RESPONSE_TYPE_R2, (UINT32 *)&(MmcHostInstance->CardInfo.CIDData));\r | |
163 | if (EFI_ERROR (Status)) {\r | |
164 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): CID retrieval error, Status=%r.\n", Status));\r | |
165 | return Status;\r | |
166 | }\r | |
167 | \r | |
168 | // Assign a relative address value to the card\r | |
169 | MmcHostInstance->CardInfo.RCA = ++mEmmcRcaCount; // TODO: might need a more sophisticated way of doing this\r | |
170 | RCA = MmcHostInstance->CardInfo.RCA << RCA_SHIFT_OFFSET;\r | |
171 | Status = Host->SendCommand (Host, MMC_CMD3, RCA);\r | |
172 | if (EFI_ERROR (Status)) {\r | |
173 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): RCA set error, Status=%r.\n", Status));\r | |
174 | return Status;\r | |
175 | }\r | |
176 | \r | |
177 | // Fetch card specific data\r | |
178 | Status = Host->SendCommand (Host, MMC_CMD9, RCA);\r | |
179 | if (EFI_ERROR (Status)) {\r | |
180 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): Failed to send CMD9, Status=%r.\n", Status));\r | |
181 | return Status;\r | |
182 | }\r | |
183 | \r | |
184 | Status = Host->ReceiveResponse (Host, MMC_RESPONSE_TYPE_R2, (UINT32 *)&(MmcHostInstance->CardInfo.CSDData));\r | |
185 | if (EFI_ERROR (Status)) {\r | |
186 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): CSD retrieval error, Status=%r.\n", Status));\r | |
187 | return Status;\r | |
188 | }\r | |
189 | \r | |
190 | // Select the card\r | |
191 | Status = Host->SendCommand (Host, MMC_CMD7, RCA);\r | |
192 | if (EFI_ERROR (Status)) {\r | |
193 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): Card selection error, Status=%r.\n", Status));\r | |
194 | }\r | |
195 | \r | |
196 | if (MMC_HOST_HAS_SETIOS(Host)) {\r | |
197 | // Set 1-bit bus width\r | |
198 | Status = Host->SetIos (Host, 0, 1, EMMCBACKWARD);\r | |
199 | if (EFI_ERROR (Status)) {\r | |
200 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): Set 1-bit bus width error, Status=%r.\n", Status));\r | |
201 | return Status;\r | |
202 | }\r | |
203 | \r | |
204 | // Set 1-bit bus width for EXTCSD\r | |
205 | Status = EmmcSetEXTCSD (MmcHostInstance, EXTCSD_BUS_WIDTH, EMMC_BUS_WIDTH_1BIT);\r | |
206 | if (EFI_ERROR (Status)) {\r | |
207 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): Set extcsd bus width error, Status=%r.\n", Status));\r | |
208 | return Status;\r | |
209 | }\r | |
210 | }\r | |
211 | \r | |
212 | // Fetch ECSD\r | |
213 | Status = Host->SendCommand (Host, MMC_CMD8, RCA);\r | |
214 | if (EFI_ERROR (Status)) {\r | |
215 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): ECSD fetch error, Status=%r.\n", Status));\r | |
216 | }\r | |
217 | \r | |
218 | Status = Host->ReadBlockData (Host, 0, 512, (UINT32 *)&(MmcHostInstance->CardInfo.ECSDData));\r | |
219 | if (EFI_ERROR (Status)) {\r | |
220 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): ECSD read error, Status=%r.\n", Status));\r | |
221 | return Status;\r | |
222 | }\r | |
223 | \r | |
224 | // Make sure device exiting data mode\r | |
225 | do {\r | |
226 | Status = EmmcGetDeviceState (MmcHostInstance, &State);\r | |
227 | if (EFI_ERROR (Status)) {\r | |
228 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): Failed to get device state, Status=%r.\n", Status));\r | |
229 | return Status;\r | |
230 | }\r | |
231 | } while (State == EMMC_DATA_STATE);\r | |
232 | \r | |
233 | // Set up media\r | |
234 | Media->BlockSize = EMMC_CARD_SIZE; // 512-byte support is mandatory for eMMC cards\r | |
235 | Media->MediaId = MmcHostInstance->CardInfo.CIDData.PSN;\r | |
236 | Media->ReadOnly = MmcHostInstance->CardInfo.CSDData.PERM_WRITE_PROTECT;\r | |
237 | Media->LogicalBlocksPerPhysicalBlock = 1;\r | |
238 | Media->IoAlign = 4;\r | |
239 | // Compute last block using bits [215:212] of the ECSD\r | |
240 | Media->LastBlock = MmcHostInstance->CardInfo.ECSDData.SECTOR_COUNT - 1; // eMMC isn't supposed to report this for\r | |
241 | // Cards <2GB in size, but the model does.\r | |
242 | \r | |
243 | // Setup card type\r | |
244 | MmcHostInstance->CardInfo.CardType = EMMC_CARD;\r | |
245 | return EFI_SUCCESS;\r | |
246 | }\r | |
247 | \r | |
248 | STATIC\r | |
249 | EFI_STATUS\r | |
250 | InitializeEmmcDevice (\r | |
251 | IN MMC_HOST_INSTANCE *MmcHostInstance\r | |
252 | )\r | |
253 | {\r | |
254 | EFI_MMC_HOST_PROTOCOL *Host;\r | |
255 | EFI_STATUS Status = EFI_SUCCESS;\r | |
256 | ECSD *ECSDData;\r | |
257 | UINT32 BusClockFreq, Idx, BusMode;\r | |
258 | UINT32 TimingMode[4] = {EMMCHS52DDR1V2, EMMCHS52DDR1V8, EMMCHS52, EMMCHS26};\r | |
259 | \r | |
260 | Host = MmcHostInstance->MmcHost;\r | |
261 | ECSDData = &MmcHostInstance->CardInfo.ECSDData;\r | |
262 | if (ECSDData->DEVICE_TYPE == EMMCBACKWARD)\r | |
263 | return EFI_SUCCESS;\r | |
264 | \r | |
265 | if (!MMC_HOST_HAS_SETIOS(Host)) {\r | |
266 | return EFI_SUCCESS;\r | |
267 | }\r | |
268 | Status = EmmcSetEXTCSD (MmcHostInstance, EXTCSD_HS_TIMING, EMMC_TIMING_HS);\r | |
269 | if (EFI_ERROR (Status)) {\r | |
270 | DEBUG ((DEBUG_ERROR, "InitializeEmmcDevice(): Failed to switch high speed mode, Status:%r.\n", Status));\r | |
271 | return Status;\r | |
272 | }\r | |
273 | \r | |
274 | for (Idx = 0; Idx < 4; Idx++) {\r | |
275 | switch (TimingMode[Idx]) {\r | |
276 | case EMMCHS52DDR1V2:\r | |
277 | case EMMCHS52DDR1V8:\r | |
278 | case EMMCHS52:\r | |
279 | BusClockFreq = 52000000;\r | |
280 | break;\r | |
281 | case EMMCHS26:\r | |
282 | BusClockFreq = 26000000;\r | |
283 | break;\r | |
284 | default:\r | |
285 | return EFI_UNSUPPORTED;\r | |
286 | }\r | |
287 | Status = Host->SetIos (Host, BusClockFreq, 8, TimingMode[Idx]);\r | |
288 | if (!EFI_ERROR (Status)) {\r | |
289 | switch (TimingMode[Idx]) {\r | |
290 | case EMMCHS52DDR1V2:\r | |
291 | case EMMCHS52DDR1V8:\r | |
292 | BusMode = EMMC_BUS_WIDTH_DDR_8BIT;\r | |
293 | break;\r | |
294 | case EMMCHS52:\r | |
295 | case EMMCHS26:\r | |
296 | BusMode = EMMC_BUS_WIDTH_8BIT;\r | |
297 | break;\r | |
298 | default:\r | |
299 | return EFI_UNSUPPORTED;\r | |
300 | }\r | |
301 | Status = EmmcSetEXTCSD (MmcHostInstance, EXTCSD_BUS_WIDTH, BusMode);\r | |
302 | if (EFI_ERROR (Status)) {\r | |
303 | DEBUG ((DEBUG_ERROR, "InitializeEmmcDevice(): Failed to set EXTCSD bus width, Status:%r\n", Status));\r | |
304 | }\r | |
305 | return Status;\r | |
306 | }\r | |
307 | }\r | |
308 | return Status;\r | |
309 | }\r | |
310 | \r | |
311 | STATIC\r | |
312 | EFI_STATUS\r | |
313 | InitializeSdMmcDevice (\r | |
314 | IN MMC_HOST_INSTANCE *MmcHostInstance\r | |
315 | )\r | |
316 | {\r | |
317 | UINT32 CmdArg;\r | |
318 | UINT32 Response[4];\r | |
319 | UINT32 Buffer[128];\r | |
320 | UINTN BlockSize;\r | |
321 | UINTN CardSize;\r | |
322 | UINTN NumBlocks;\r | |
323 | BOOLEAN CccSwitch;\r | |
324 | SCR Scr;\r | |
325 | EFI_STATUS Status;\r | |
326 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
327 | \r | |
328 | MmcHost = MmcHostInstance->MmcHost;\r | |
329 | \r | |
330 | // Send a command to get Card specific data\r | |
331 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
332 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD9, CmdArg);\r | |
333 | if (EFI_ERROR (Status)) {\r | |
334 | DEBUG((EFI_D_ERROR, "InitializeSdMmcDevice(MMC_CMD9): Error, Status=%r\n", Status));\r | |
335 | return Status;\r | |
336 | }\r | |
337 | \r | |
338 | // Read Response\r | |
339 | Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_CSD, Response);\r | |
340 | if (EFI_ERROR (Status)) {\r | |
341 | DEBUG((EFI_D_ERROR, "InitializeSdMmcDevice(): Failed to receive CSD, Status=%r\n", Status));\r | |
342 | return Status;\r | |
343 | }\r | |
344 | PrintCSD (Response);\r | |
345 | if (MMC_CSD_GET_CCC(Response) & SD_CCC_SWITCH) {\r | |
346 | CccSwitch = TRUE;\r | |
347 | } else {\r | |
348 | CccSwitch = FALSE;\r | |
349 | }\r | |
350 | \r | |
351 | if (MmcHostInstance->CardInfo.CardType == SD_CARD_2_HIGH) {\r | |
352 | CardSize = HC_MMC_CSD_GET_DEVICESIZE (Response);\r | |
353 | NumBlocks = ((CardSize + 1) * 1024);\r | |
354 | BlockSize = 1 << MMC_CSD_GET_READBLLEN (Response);\r | |
355 | } else {\r | |
356 | CardSize = MMC_CSD_GET_DEVICESIZE (Response);\r | |
357 | NumBlocks = (CardSize + 1) * (1 << (MMC_CSD_GET_DEVICESIZEMULT (Response) + 2));\r | |
358 | BlockSize = 1 << MMC_CSD_GET_READBLLEN (Response);\r | |
359 | }\r | |
360 | \r | |
361 | // For >=2G card, BlockSize may be 1K, but the transfer size is 512 bytes.\r | |
362 | if (BlockSize > 512) {\r | |
363 | NumBlocks = MultU64x32 (NumBlocks, BlockSize / 512);\r | |
364 | BlockSize = 512;\r | |
365 | }\r | |
366 | \r | |
367 | MmcHostInstance->BlockIo.Media->LastBlock = (NumBlocks - 1);\r | |
368 | MmcHostInstance->BlockIo.Media->BlockSize = BlockSize;\r | |
369 | MmcHostInstance->BlockIo.Media->ReadOnly = MmcHost->IsReadOnly (MmcHost);\r | |
370 | MmcHostInstance->BlockIo.Media->MediaPresent = TRUE;\r | |
371 | MmcHostInstance->BlockIo.Media->MediaId++;\r | |
372 | \r | |
373 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
374 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD7, CmdArg);\r | |
375 | if (EFI_ERROR (Status)) {\r | |
376 | DEBUG((EFI_D_ERROR, "InitializeSdMmcDevice(MMC_CMD7): Error and Status = %r\n", Status));\r | |
377 | return Status;\r | |
378 | }\r | |
379 | \r | |
380 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD55, CmdArg);\r | |
381 | if (EFI_ERROR (Status)) {\r | |
382 | DEBUG ((EFI_D_ERROR, "%a(MMC_CMD55): Error and Status = %r\n", Status));\r | |
383 | return Status;\r | |
384 | }\r | |
385 | Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R1, Response);\r | |
386 | if (EFI_ERROR (Status)) {\r | |
387 | DEBUG ((EFI_D_ERROR, "%a(MMC_CMD55): Error and Status = %r\n", Status));\r | |
388 | return Status;\r | |
389 | }\r | |
390 | if ((Response[0] & MMC_STATUS_APP_CMD) == 0) {\r | |
391 | return EFI_SUCCESS;\r | |
392 | }\r | |
393 | \r | |
394 | /* SCR */\r | |
395 | Status = MmcHost->SendCommand (MmcHost, MMC_ACMD51, 0);\r | |
396 | if (EFI_ERROR (Status)) {\r | |
397 | DEBUG ((EFI_D_ERROR, "%a(MMC_ACMD51): Error and Status = %r\n", __func__, Status));\r | |
398 | return Status;\r | |
399 | } else {\r | |
400 | Status = MmcHost->ReadBlockData (MmcHost, 0, 8, Buffer);\r | |
401 | if (EFI_ERROR (Status)) {\r | |
402 | DEBUG ((EFI_D_ERROR, "%a(MMC_ACMD51): ReadBlockData Error and Status = %r\n", __func__, Status));\r | |
403 | return Status;\r | |
404 | }\r | |
405 | CopyMem (&Scr, Buffer, 8);\r | |
406 | if (Scr.SD_SPEC == 2) {\r | |
407 | if (Scr.SD_SPEC3 == 1) {\r | |
408 | if (Scr.SD_SPEC4 == 1) {\r | |
409 | DEBUG ((EFI_D_INFO, "Found SD Card for Spec Version 4.xx\n"));\r | |
410 | } else {\r | |
411 | DEBUG ((EFI_D_INFO, "Found SD Card for Spec Version 3.0x\n"));\r | |
412 | }\r | |
413 | } else {\r | |
414 | if (Scr.SD_SPEC4 == 0) {\r | |
415 | DEBUG ((EFI_D_INFO, "Found SD Card for Spec Version 2.0\n"));\r | |
416 | } else {\r | |
417 | DEBUG ((EFI_D_ERROR, "Found invalid SD Card\n"));\r | |
418 | }\r | |
419 | }\r | |
420 | } else {\r | |
421 | if ((Scr.SD_SPEC3 == 0) && (Scr.SD_SPEC4 == 0)) {\r | |
422 | if (Scr.SD_SPEC == 1) {\r | |
423 | DEBUG ((EFI_D_INFO, "Found SD Card for Spec Version 1.10\n"));\r | |
424 | } else {\r | |
425 | DEBUG ((EFI_D_INFO, "Found SD Card for Spec Version 1.0\n"));\r | |
426 | }\r | |
427 | } else {\r | |
428 | DEBUG ((EFI_D_ERROR, "Found invalid SD Card\n"));\r | |
429 | }\r | |
430 | }\r | |
431 | }\r | |
432 | if (CccSwitch) {\r | |
433 | /* SD Switch, Mode:1, Group:0, Value:1 */\r | |
434 | CmdArg = 1 << 31 | 0x00FFFFFF;\r | |
435 | CmdArg &= ~(0xF << (0 * 4));\r | |
436 | CmdArg |= 1 << (0 * 4);\r | |
437 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD6, CmdArg);\r | |
438 | if (EFI_ERROR (Status)) {\r | |
439 | DEBUG ((EFI_D_ERROR, "%a(MMC_CMD6): Error and Status = %r\n", Status));\r | |
440 | return Status;\r | |
441 | } else {\r | |
442 | Status = MmcHost->ReadBlockData (MmcHost, 0, 64, Buffer);\r | |
443 | if (EFI_ERROR (Status)) {\r | |
444 | DEBUG ((EFI_D_ERROR, "%a(MMC_CMD6): ReadBlockData Error and Status = %r\n", Status));\r | |
445 | return Status;\r | |
446 | }\r | |
447 | }\r | |
448 | }\r | |
449 | if (Scr.SD_BUS_WIDTHS & SD_BUS_WIDTH_4BIT) {\r | |
450 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
451 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD55, CmdArg);\r | |
452 | if (EFI_ERROR (Status)) {\r | |
453 | DEBUG ((EFI_D_ERROR, "%a(MMC_CMD55): Error and Status = %r\n", Status));\r | |
454 | return Status;\r | |
455 | }\r | |
456 | /* Width: 4 */\r | |
457 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD6, 2);\r | |
458 | if (EFI_ERROR (Status)) {\r | |
459 | DEBUG ((EFI_D_ERROR, "%a(MMC_CMD6): Error and Status = %r\n", Status));\r | |
460 | return Status;\r | |
461 | }\r | |
462 | }\r | |
463 | if (MMC_HOST_HAS_SETIOS(MmcHost)) {\r | |
464 | Status = MmcHost->SetIos (MmcHost, 26 * 1000 * 1000, 4, EMMCBACKWARD);\r | |
465 | if (EFI_ERROR (Status)) {\r | |
466 | DEBUG ((EFI_D_ERROR, "%a(SetIos): Error and Status = %r\n", Status));\r | |
467 | return Status;\r | |
468 | }\r | |
469 | }\r | |
470 | return EFI_SUCCESS;\r | |
471 | }\r | |
472 | \r | |
473 | STATIC\r | |
474 | EFI_STATUS\r | |
475 | EFIAPI\r | |
476 | MmcIdentificationMode (\r | |
477 | IN MMC_HOST_INSTANCE *MmcHostInstance\r | |
478 | )\r | |
479 | {\r | |
480 | EFI_STATUS Status;\r | |
481 | UINT32 Response[4];\r | |
482 | UINTN Timeout;\r | |
483 | UINTN CmdArg;\r | |
484 | BOOLEAN IsHCS;\r | |
485 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
486 | OCR_RESPONSE OcrResponse;\r | |
487 | \r | |
488 | MmcHost = MmcHostInstance->MmcHost;\r | |
489 | CmdArg = 0;\r | |
490 | IsHCS = FALSE;\r | |
491 | \r | |
492 | if (MmcHost == NULL) {\r | |
493 | return EFI_INVALID_PARAMETER;\r | |
494 | }\r | |
495 | \r | |
496 | // We can get into this function if we restart the identification mode\r | |
497 | if (MmcHostInstance->State == MmcHwInitializationState) {\r | |
498 | // Initialize the MMC Host HW\r | |
499 | Status = MmcNotifyState (MmcHostInstance, MmcHwInitializationState);\r | |
500 | if (EFI_ERROR (Status)) {\r | |
501 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcHwInitializationState, Status=%r.\n", Status));\r | |
502 | return Status;\r | |
503 | }\r | |
504 | }\r | |
505 | \r | |
506 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD0, 0);\r | |
507 | if (EFI_ERROR (Status)) {\r | |
508 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD0): Error, Status=%r.\n", Status));\r | |
509 | return Status;\r | |
510 | }\r | |
511 | Status = MmcNotifyState (MmcHostInstance, MmcIdleState);\r | |
512 | if (EFI_ERROR (Status)) {\r | |
513 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcIdleState, Status=%r.\n", Status));\r | |
514 | return Status;\r | |
515 | }\r | |
516 | \r | |
517 | // Send CMD1 to get OCR (MMC)\r | |
518 | // This command only valid for MMC and eMMC\r | |
519 | Timeout = MAX_RETRY_COUNT;\r | |
520 | do {\r | |
521 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD1, EMMC_CMD1_CAPACITY_GREATER_THAN_2GB);\r | |
522 | if (EFI_ERROR (Status))\r | |
523 | break;\r | |
524 | Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, (UINT32 *)&OcrResponse);\r | |
525 | if (EFI_ERROR (Status)) {\r | |
526 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive OCR, Status=%r.\n", Status));\r | |
527 | return Status;\r | |
528 | }\r | |
529 | Timeout--;\r | |
530 | } while (!OcrResponse.Ocr.PowerUp && (Timeout > 0));\r | |
531 | if (Status == EFI_SUCCESS) {\r | |
532 | if (!OcrResponse.Ocr.PowerUp) {\r | |
533 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD1): Card initialisation failure, Status=%r.\n", Status));\r | |
534 | return EFI_DEVICE_ERROR;\r | |
535 | }\r | |
536 | OcrResponse.Ocr.PowerUp = 0;\r | |
537 | if (OcrResponse.Raw == EMMC_CMD1_CAPACITY_GREATER_THAN_2GB) {\r | |
538 | MmcHostInstance->CardInfo.OCRData.AccessMode = BIT1;\r | |
539 | }\r | |
540 | else {\r | |
541 | MmcHostInstance->CardInfo.OCRData.AccessMode = 0x0;\r | |
542 | }\r | |
543 | // Check whether MMC or eMMC\r | |
544 | if (OcrResponse.Raw == EMMC_CMD1_CAPACITY_GREATER_THAN_2GB ||\r | |
545 | OcrResponse.Raw == EMMC_CMD1_CAPACITY_LESS_THAN_2GB) {\r | |
546 | return EmmcIdentificationMode (MmcHostInstance, OcrResponse);\r | |
547 | }\r | |
548 | }\r | |
549 | \r | |
550 | // Are we using SDIO ?\r | |
551 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD5, 0);\r | |
552 | if (Status == EFI_SUCCESS) {\r | |
553 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD5): Error - SDIO not supported, Status=%r.\n", Status));\r | |
554 | return EFI_UNSUPPORTED;\r | |
555 | }\r | |
556 | \r | |
557 | // Check which kind of card we are using. Ver2.00 or later SD Memory Card (PL180 is SD v1.1)\r | |
558 | CmdArg = (0x0UL << 12 | BIT8 | 0xCEUL << 0);\r | |
559 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD8, CmdArg);\r | |
560 | if (Status == EFI_SUCCESS) {\r | |
561 | DEBUG ((EFI_D_ERROR, "Card is SD2.0 => Supports high capacity\n"));\r | |
562 | IsHCS = TRUE;\r | |
563 | Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R7, Response);\r | |
564 | if (EFI_ERROR (Status)) {\r | |
565 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive response to CMD8, Status=%r.\n", Status));\r | |
566 | return Status;\r | |
567 | }\r | |
568 | PrintResponseR1 (Response[0]);\r | |
569 | // Check if it is valid response\r | |
570 | if (Response[0] != CmdArg) {\r | |
571 | DEBUG ((EFI_D_ERROR, "The Card is not usable\n"));\r | |
572 | return EFI_UNSUPPORTED;\r | |
573 | }\r | |
574 | } else {\r | |
575 | DEBUG ((EFI_D_ERROR, "Not a SD2.0 Card\n"));\r | |
576 | }\r | |
577 | \r | |
578 | // We need to wait for the MMC or SD card is ready => (gCardInfo.OCRData.PowerUp == 1)\r | |
579 | Timeout = MAX_RETRY_COUNT;\r | |
580 | while (Timeout > 0) {\r | |
581 | // SD Card or MMC Card ? CMD55 indicates to the card that the next command is an application specific command\r | |
582 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD55, 0);\r | |
583 | if (Status == EFI_SUCCESS) {\r | |
584 | DEBUG ((EFI_D_INFO, "Card should be SD\n"));\r | |
585 | if (IsHCS) {\r | |
586 | MmcHostInstance->CardInfo.CardType = SD_CARD_2;\r | |
587 | } else {\r | |
588 | MmcHostInstance->CardInfo.CardType = SD_CARD;\r | |
589 | }\r | |
590 | \r | |
591 | // Note: The first time CmdArg will be zero\r | |
592 | CmdArg = ((UINTN *) &(MmcHostInstance->CardInfo.OCRData))[0];\r | |
593 | if (IsHCS) {\r | |
594 | CmdArg |= BIT30;\r | |
595 | }\r | |
596 | Status = MmcHost->SendCommand (MmcHost, MMC_ACMD41, CmdArg);\r | |
597 | if (!EFI_ERROR (Status)) {\r | |
598 | Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, Response);\r | |
599 | if (EFI_ERROR (Status)) {\r | |
600 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive OCR, Status=%r.\n", Status));\r | |
601 | return Status;\r | |
602 | }\r | |
603 | ((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];\r | |
604 | }\r | |
605 | } else {\r | |
606 | DEBUG ((EFI_D_INFO, "Card should be MMC\n"));\r | |
607 | MmcHostInstance->CardInfo.CardType = MMC_CARD;\r | |
608 | \r | |
609 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD1, 0x800000);\r | |
610 | if (!EFI_ERROR (Status)) {\r | |
611 | Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, Response);\r | |
612 | if (EFI_ERROR (Status)) {\r | |
613 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive OCR, Status=%r.\n", Status));\r | |
614 | return Status;\r | |
615 | }\r | |
616 | ((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];\r | |
617 | }\r | |
618 | }\r | |
619 | \r | |
620 | if (!EFI_ERROR (Status)) {\r | |
621 | if (!MmcHostInstance->CardInfo.OCRData.PowerUp) {\r | |
622 | gBS->Stall (1);\r | |
623 | Timeout--;\r | |
624 | } else {\r | |
625 | if ((MmcHostInstance->CardInfo.CardType == SD_CARD_2) && (MmcHostInstance->CardInfo.OCRData.AccessMode & BIT1)) {\r | |
626 | MmcHostInstance->CardInfo.CardType = SD_CARD_2_HIGH;\r | |
627 | DEBUG ((EFI_D_ERROR, "High capacity card.\n"));\r | |
628 | }\r | |
629 | break; // The MMC/SD card is ready. Continue the Identification Mode\r | |
630 | }\r | |
631 | } else {\r | |
632 | gBS->Stall (1);\r | |
633 | Timeout--;\r | |
634 | }\r | |
635 | }\r | |
636 | \r | |
637 | if (Timeout == 0) {\r | |
638 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(): No Card\n"));\r | |
639 | return EFI_NO_MEDIA;\r | |
640 | } else {\r | |
641 | PrintOCR (Response[0]);\r | |
642 | }\r | |
643 | \r | |
644 | Status = MmcNotifyState (MmcHostInstance, MmcReadyState);\r | |
645 | if (EFI_ERROR (Status)) {\r | |
646 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcReadyState\n"));\r | |
647 | return Status;\r | |
648 | }\r | |
649 | \r | |
650 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD2, 0);\r | |
651 | if (EFI_ERROR (Status)) {\r | |
652 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD2): Error\n"));\r | |
653 | return Status;\r | |
654 | }\r | |
655 | Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_CID, Response);\r | |
656 | if (EFI_ERROR (Status)) {\r | |
657 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive CID, Status=%r.\n", Status));\r | |
658 | return Status;\r | |
659 | }\r | |
660 | \r | |
661 | PrintCID (Response);\r | |
662 | \r | |
663 | Status = MmcHost->NotifyState (MmcHost, MmcIdentificationState);\r | |
664 | if (EFI_ERROR (Status)) {\r | |
665 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcIdentificationState\n"));\r | |
666 | return Status;\r | |
667 | }\r | |
668 | \r | |
669 | //\r | |
670 | // Note, SD specifications say that "if the command execution causes a state change, it\r | |
671 | // will be visible to the host in the response to the next command"\r | |
672 | // The status returned for this CMD3 will be 2 - identification\r | |
673 | //\r | |
674 | CmdArg = 1;\r | |
675 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD3, CmdArg);\r | |
676 | if (EFI_ERROR (Status)) {\r | |
677 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD3): Error\n"));\r | |
678 | return Status;\r | |
679 | }\r | |
680 | \r | |
681 | Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_RCA, Response);\r | |
682 | if (EFI_ERROR (Status)) {\r | |
683 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive RCA, Status=%r.\n", Status));\r | |
684 | return Status;\r | |
685 | }\r | |
686 | PrintRCA (Response[0]);\r | |
687 | \r | |
688 | // For MMC card, RCA is assigned by CMD3 while CMD3 dumps the RCA for SD card\r | |
689 | if (MmcHostInstance->CardInfo.CardType != MMC_CARD) {\r | |
690 | MmcHostInstance->CardInfo.RCA = Response[0] >> 16;\r | |
691 | } else {\r | |
692 | MmcHostInstance->CardInfo.RCA = CmdArg;\r | |
693 | }\r | |
694 | Status = MmcNotifyState (MmcHostInstance, MmcStandByState);\r | |
695 | if (EFI_ERROR (Status)) {\r | |
696 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcStandByState\n"));\r | |
697 | return Status;\r | |
698 | }\r | |
699 | \r | |
700 | return EFI_SUCCESS;\r | |
701 | }\r | |
702 | \r | |
703 | EFI_STATUS\r | |
704 | InitializeMmcDevice (\r | |
705 | IN MMC_HOST_INSTANCE *MmcHostInstance\r | |
706 | )\r | |
707 | {\r | |
708 | EFI_STATUS Status;\r | |
709 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
710 | UINTN BlockCount;\r | |
711 | \r | |
712 | BlockCount = 1;\r | |
713 | MmcHost = MmcHostInstance->MmcHost;\r | |
714 | \r | |
715 | Status = MmcIdentificationMode (MmcHostInstance);\r | |
716 | if (EFI_ERROR (Status)) {\r | |
717 | DEBUG((EFI_D_ERROR, "InitializeMmcDevice(): Error in Identification Mode, Status=%r\n", Status));\r | |
718 | return Status;\r | |
719 | }\r | |
720 | \r | |
721 | Status = MmcNotifyState (MmcHostInstance, MmcTransferState);\r | |
722 | if (EFI_ERROR (Status)) {\r | |
723 | DEBUG((EFI_D_ERROR, "InitializeMmcDevice(): Error MmcTransferState, Status=%r\n", Status));\r | |
724 | return Status;\r | |
725 | }\r | |
726 | \r | |
727 | if (MmcHostInstance->CardInfo.CardType != EMMC_CARD) {\r | |
728 | Status = InitializeSdMmcDevice (MmcHostInstance);\r | |
729 | } else {\r | |
730 | Status = InitializeEmmcDevice (MmcHostInstance);\r | |
731 | }\r | |
732 | if (EFI_ERROR (Status)) {\r | |
733 | return Status;\r | |
734 | }\r | |
735 | \r | |
736 | // Set Block Length\r | |
737 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD16, MmcHostInstance->BlockIo.Media->BlockSize);\r | |
738 | if (EFI_ERROR (Status)) {\r | |
739 | DEBUG((EFI_D_ERROR, "InitializeMmcDevice(MMC_CMD16): Error MmcHostInstance->BlockIo.Media->BlockSize: %d and Error = %r\n",\r | |
740 | MmcHostInstance->BlockIo.Media->BlockSize, Status));\r | |
741 | return Status;\r | |
742 | }\r | |
743 | \r | |
744 | // Block Count (not used). Could return an error for SD card\r | |
745 | if (MmcHostInstance->CardInfo.CardType == MMC_CARD) {\r | |
746 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD23, BlockCount);\r | |
747 | if (EFI_ERROR (Status)) {\r | |
748 | DEBUG((EFI_D_ERROR, "InitializeMmcDevice(MMC_CMD23): Error, Status=%r\n", Status));\r | |
749 | return Status;\r | |
750 | }\r | |
751 | }\r | |
752 | \r | |
753 | return EFI_SUCCESS;\r | |
754 | }\r |