3 * Copyright (c) 2011-2015, ARM Limited. All rights reserved.
5 * This program and the accompanying materials
6 * are licensed and made available under the terms and conditions of the BSD License
7 * which accompanies this distribution. The full text of the license may be found at
8 * http://opensource.org/licenses/bsd-license.php
10 * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
15 #include <Library/BaseMemoryLib.h>
16 #include <Library/MemoryAllocationLib.h>
17 #include <Library/TimerLib.h>
26 #define MAX_RETRY_COUNT 1000
27 #define CMD_RETRY_COUNT 20
28 #define RCA_SHIFT_OFFSET 16
29 #define EMMC_CARD_SIZE 512
30 #define EMMC_ECSD_SIZE_OFFSET 53
32 #define EXTCSD_BUS_WIDTH 183
33 #define EXTCSD_HS_TIMING 185
35 #define EMMC_TIMING_BACKWARD 0
36 #define EMMC_TIMING_HS 1
37 #define EMMC_TIMING_HS200 2
38 #define EMMC_TIMING_HS400 3
40 #define EMMC_BUS_WIDTH_1BIT 0
41 #define EMMC_BUS_WIDTH_4BIT 1
42 #define EMMC_BUS_WIDTH_8BIT 2
43 #define EMMC_BUS_WIDTH_DDR_4BIT 5
44 #define EMMC_BUS_WIDTH_DDR_8BIT 6
46 #define EMMC_SWITCH_ERROR (1 << 7)
48 #define SD_BUS_WIDTH_1BIT (1 << 0)
49 #define SD_BUS_WIDTH_4BIT (1 << 2)
51 #define SD_CCC_SWITCH (1 << 10)
53 #define DEVICE_STATE(x) (((x) >> 9) & 0xf)
54 typedef enum _EMMC_DEVICE_STATE
{
68 UINT32 mEmmcRcaCount
= 0;
74 IN MMC_HOST_INSTANCE
*MmcHostInstance
,
75 OUT EMMC_DEVICE_STATE
*State
78 EFI_MMC_HOST_PROTOCOL
*Host
;
83 return EFI_INVALID_PARAMETER
;
86 Host
= MmcHostInstance
->MmcHost
;
87 RCA
= MmcHostInstance
->CardInfo
.RCA
<< RCA_SHIFT_OFFSET
;
88 Status
= Host
->SendCommand (Host
, MMC_CMD13
, RCA
);
89 if (EFI_ERROR (Status
)) {
90 DEBUG ((EFI_D_ERROR
, "EmmcGetDeviceState(): Failed to get card status, Status=%r.\n", Status
));
93 Status
= Host
->ReceiveResponse (Host
, MMC_RESPONSE_TYPE_R1
, &Data
);
94 if (EFI_ERROR (Status
)) {
95 DEBUG ((EFI_D_ERROR
, "EmmcGetDeviceState(): Failed to get response of CMD13, Status=%r.\n", Status
));
98 if (Data
& EMMC_SWITCH_ERROR
) {
99 DEBUG ((EFI_D_ERROR
, "EmmcGetDeviceState(): Failed to switch expected mode, Status=%r.\n", Status
));
100 return EFI_DEVICE_ERROR
;
102 *State
= DEVICE_STATE(Data
);
110 IN MMC_HOST_INSTANCE
*MmcHostInstance
,
115 EFI_MMC_HOST_PROTOCOL
*Host
;
116 EMMC_DEVICE_STATE State
;
120 Host
= MmcHostInstance
->MmcHost
;
121 Argument
= EMMC_CMD6_ARG_ACCESS(3) | EMMC_CMD6_ARG_INDEX(ExtCmdIndex
) |
122 EMMC_CMD6_ARG_VALUE(Value
) | EMMC_CMD6_ARG_CMD_SET(1);
123 Status
= Host
->SendCommand (Host
, MMC_CMD6
, Argument
);
124 if (EFI_ERROR (Status
)) {
125 DEBUG ((EFI_D_ERROR
, "EmmcSetEXTCSD(): Failed to send CMD6, Status=%r.\n", Status
));
128 // Make sure device exiting prog mode
130 Status
= EmmcGetDeviceState (MmcHostInstance
, &State
);
131 if (EFI_ERROR (Status
)) {
132 DEBUG ((EFI_D_ERROR
, "EmmcSetEXTCSD(): Failed to get device state, Status=%r.\n", Status
));
135 } while (State
== EMMC_PRG_STATE
);
142 EmmcIdentificationMode (
143 IN MMC_HOST_INSTANCE
*MmcHostInstance
,
144 IN OCR_RESPONSE Response
147 EFI_MMC_HOST_PROTOCOL
*Host
;
148 EFI_BLOCK_IO_MEDIA
*Media
;
150 EMMC_DEVICE_STATE State
;
153 Host
= MmcHostInstance
->MmcHost
;
154 Media
= MmcHostInstance
->BlockIo
.Media
;
156 // Fetch card identity register
157 Status
= Host
->SendCommand (Host
, MMC_CMD2
, 0);
158 if (EFI_ERROR (Status
)) {
159 DEBUG ((EFI_D_ERROR
, "EmmcIdentificationMode(): Failed to send CMD2, Status=%r.\n", Status
));
163 Status
= Host
->ReceiveResponse (Host
, MMC_RESPONSE_TYPE_R2
, (UINT32
*)&(MmcHostInstance
->CardInfo
.CIDData
));
164 if (EFI_ERROR (Status
)) {
165 DEBUG ((EFI_D_ERROR
, "EmmcIdentificationMode(): CID retrieval error, Status=%r.\n", Status
));
169 // Assign a relative address value to the card
170 MmcHostInstance
->CardInfo
.RCA
= ++mEmmcRcaCount
; // TODO: might need a more sophisticated way of doing this
171 RCA
= MmcHostInstance
->CardInfo
.RCA
<< RCA_SHIFT_OFFSET
;
172 Status
= Host
->SendCommand (Host
, MMC_CMD3
, RCA
);
173 if (EFI_ERROR (Status
)) {
174 DEBUG ((EFI_D_ERROR
, "EmmcIdentificationMode(): RCA set error, Status=%r.\n", Status
));
178 // Fetch card specific data
179 Status
= Host
->SendCommand (Host
, MMC_CMD9
, RCA
);
180 if (EFI_ERROR (Status
)) {
181 DEBUG ((EFI_D_ERROR
, "EmmcIdentificationMode(): Failed to send CMD9, Status=%r.\n", Status
));
185 Status
= Host
->ReceiveResponse (Host
, MMC_RESPONSE_TYPE_R2
, (UINT32
*)&(MmcHostInstance
->CardInfo
.CSDData
));
186 if (EFI_ERROR (Status
)) {
187 DEBUG ((EFI_D_ERROR
, "EmmcIdentificationMode(): CSD retrieval error, Status=%r.\n", Status
));
192 Status
= Host
->SendCommand (Host
, MMC_CMD7
, RCA
);
193 if (EFI_ERROR (Status
)) {
194 DEBUG ((EFI_D_ERROR
, "EmmcIdentificationMode(): Card selection error, Status=%r.\n", Status
));
197 if (MMC_HOST_HAS_SETIOS(Host
)) {
198 // Set 1-bit bus width
199 Status
= Host
->SetIos (Host
, 0, 1, EMMCBACKWARD
);
200 if (EFI_ERROR (Status
)) {
201 DEBUG ((EFI_D_ERROR
, "EmmcIdentificationMode(): Set 1-bit bus width error, Status=%r.\n", Status
));
205 // Set 1-bit bus width for EXTCSD
206 Status
= EmmcSetEXTCSD (MmcHostInstance
, EXTCSD_BUS_WIDTH
, EMMC_BUS_WIDTH_1BIT
);
207 if (EFI_ERROR (Status
)) {
208 DEBUG ((EFI_D_ERROR
, "EmmcIdentificationMode(): Set extcsd bus width error, Status=%r.\n", Status
));
214 MmcHostInstance
->CardInfo
.ECSDData
= AllocatePages (EFI_SIZE_TO_PAGES (sizeof (ECSD
)));
215 if (MmcHostInstance
->CardInfo
.ECSDData
== NULL
) {
216 return EFI_OUT_OF_RESOURCES
;
218 Status
= Host
->SendCommand (Host
, MMC_CMD8
, 0);
219 if (EFI_ERROR (Status
)) {
220 DEBUG ((EFI_D_ERROR
, "EmmcIdentificationMode(): ECSD fetch error, Status=%r.\n", Status
));
223 Status
= Host
->ReadBlockData (Host
, 0, 512, (UINT32
*)MmcHostInstance
->CardInfo
.ECSDData
);
224 if (EFI_ERROR (Status
)) {
225 DEBUG ((EFI_D_ERROR
, "EmmcIdentificationMode(): ECSD read error, Status=%r.\n", Status
));
229 // Make sure device exiting data mode
231 Status
= EmmcGetDeviceState (MmcHostInstance
, &State
);
232 if (EFI_ERROR (Status
)) {
233 DEBUG ((EFI_D_ERROR
, "EmmcIdentificationMode(): Failed to get device state, Status=%r.\n", Status
));
236 } while (State
== EMMC_DATA_STATE
);
239 Media
->BlockSize
= EMMC_CARD_SIZE
; // 512-byte support is mandatory for eMMC cards
240 Media
->MediaId
= MmcHostInstance
->CardInfo
.CIDData
.PSN
;
241 Media
->ReadOnly
= MmcHostInstance
->CardInfo
.CSDData
.PERM_WRITE_PROTECT
;
242 Media
->LogicalBlocksPerPhysicalBlock
= 1;
244 // Compute last block using bits [215:212] of the ECSD
245 Media
->LastBlock
= MmcHostInstance
->CardInfo
.ECSDData
->SECTOR_COUNT
- 1; // eMMC isn't supposed to report this for
246 // Cards <2GB in size, but the model does.
249 MmcHostInstance
->CardInfo
.CardType
= EMMC_CARD
;
253 FreePages (MmcHostInstance
->CardInfo
.ECSDData
, EFI_SIZE_TO_PAGES (sizeof (ECSD
)));
259 InitializeEmmcDevice (
260 IN MMC_HOST_INSTANCE
*MmcHostInstance
263 EFI_MMC_HOST_PROTOCOL
*Host
;
264 EFI_STATUS Status
= EFI_SUCCESS
;
266 UINT32 BusClockFreq
, Idx
, BusMode
;
267 UINT32 TimingMode
[4] = {EMMCHS52DDR1V2
, EMMCHS52DDR1V8
, EMMCHS52
, EMMCHS26
};
269 Host
= MmcHostInstance
->MmcHost
;
270 ECSDData
= MmcHostInstance
->CardInfo
.ECSDData
;
271 if (ECSDData
->DEVICE_TYPE
== EMMCBACKWARD
)
274 if (!MMC_HOST_HAS_SETIOS(Host
)) {
277 Status
= EmmcSetEXTCSD (MmcHostInstance
, EXTCSD_HS_TIMING
, EMMC_TIMING_HS
);
278 if (EFI_ERROR (Status
)) {
279 DEBUG ((DEBUG_ERROR
, "InitializeEmmcDevice(): Failed to switch high speed mode, Status:%r.\n", Status
));
283 for (Idx
= 0; Idx
< 4; Idx
++) {
284 switch (TimingMode
[Idx
]) {
288 BusClockFreq
= 52000000;
291 BusClockFreq
= 26000000;
294 return EFI_UNSUPPORTED
;
296 Status
= Host
->SetIos (Host
, BusClockFreq
, 8, TimingMode
[Idx
]);
297 if (!EFI_ERROR (Status
)) {
298 switch (TimingMode
[Idx
]) {
301 BusMode
= EMMC_BUS_WIDTH_DDR_8BIT
;
305 BusMode
= EMMC_BUS_WIDTH_8BIT
;
308 return EFI_UNSUPPORTED
;
310 Status
= EmmcSetEXTCSD (MmcHostInstance
, EXTCSD_BUS_WIDTH
, BusMode
);
311 if (EFI_ERROR (Status
)) {
312 DEBUG ((DEBUG_ERROR
, "InitializeEmmcDevice(): Failed to set EXTCSD bus width, Status:%r\n", Status
));
322 InitializeSdMmcDevice (
323 IN MMC_HOST_INSTANCE
*MmcHostInstance
335 EFI_MMC_HOST_PROTOCOL
*MmcHost
;
337 MmcHost
= MmcHostInstance
->MmcHost
;
339 // Send a command to get Card specific data
340 CmdArg
= MmcHostInstance
->CardInfo
.RCA
<< 16;
341 Status
= MmcHost
->SendCommand (MmcHost
, MMC_CMD9
, CmdArg
);
342 if (EFI_ERROR (Status
)) {
343 DEBUG((EFI_D_ERROR
, "InitializeSdMmcDevice(MMC_CMD9): Error, Status=%r\n", Status
));
348 Status
= MmcHost
->ReceiveResponse (MmcHost
, MMC_RESPONSE_TYPE_CSD
, Response
);
349 if (EFI_ERROR (Status
)) {
350 DEBUG((EFI_D_ERROR
, "InitializeSdMmcDevice(): Failed to receive CSD, Status=%r\n", Status
));
354 if (MMC_CSD_GET_CCC(Response
) & SD_CCC_SWITCH
) {
360 if (MmcHostInstance
->CardInfo
.CardType
== SD_CARD_2_HIGH
) {
361 CardSize
= HC_MMC_CSD_GET_DEVICESIZE (Response
);
362 NumBlocks
= ((CardSize
+ 1) * 1024);
363 BlockSize
= 1 << MMC_CSD_GET_READBLLEN (Response
);
365 CardSize
= MMC_CSD_GET_DEVICESIZE (Response
);
366 NumBlocks
= (CardSize
+ 1) * (1 << (MMC_CSD_GET_DEVICESIZEMULT (Response
) + 2));
367 BlockSize
= 1 << MMC_CSD_GET_READBLLEN (Response
);
370 // For >=2G card, BlockSize may be 1K, but the transfer size is 512 bytes.
371 if (BlockSize
> 512) {
372 NumBlocks
= MultU64x32 (NumBlocks
, BlockSize
/ 512);
376 MmcHostInstance
->BlockIo
.Media
->LastBlock
= (NumBlocks
- 1);
377 MmcHostInstance
->BlockIo
.Media
->BlockSize
= BlockSize
;
378 MmcHostInstance
->BlockIo
.Media
->ReadOnly
= MmcHost
->IsReadOnly (MmcHost
);
379 MmcHostInstance
->BlockIo
.Media
->MediaPresent
= TRUE
;
380 MmcHostInstance
->BlockIo
.Media
->MediaId
++;
382 CmdArg
= MmcHostInstance
->CardInfo
.RCA
<< 16;
383 Status
= MmcHost
->SendCommand (MmcHost
, MMC_CMD7
, CmdArg
);
384 if (EFI_ERROR (Status
)) {
385 DEBUG((EFI_D_ERROR
, "InitializeSdMmcDevice(MMC_CMD7): Error and Status = %r\n", Status
));
389 Status
= MmcHost
->SendCommand (MmcHost
, MMC_CMD55
, CmdArg
);
390 if (EFI_ERROR (Status
)) {
391 DEBUG ((EFI_D_ERROR
, "%a(MMC_CMD55): Error and Status = %r\n", Status
));
394 Status
= MmcHost
->ReceiveResponse (MmcHost
, MMC_RESPONSE_TYPE_R1
, Response
);
395 if (EFI_ERROR (Status
)) {
396 DEBUG ((EFI_D_ERROR
, "%a(MMC_CMD55): Error and Status = %r\n", Status
));
399 if ((Response
[0] & MMC_STATUS_APP_CMD
) == 0) {
404 Status
= MmcHost
->SendCommand (MmcHost
, MMC_ACMD51
, 0);
405 if (EFI_ERROR (Status
)) {
406 DEBUG ((EFI_D_ERROR
, "%a(MMC_ACMD51): Error and Status = %r\n", __func__
, Status
));
409 Status
= MmcHost
->ReadBlockData (MmcHost
, 0, 8, Buffer
);
410 if (EFI_ERROR (Status
)) {
411 DEBUG ((EFI_D_ERROR
, "%a(MMC_ACMD51): ReadBlockData Error and Status = %r\n", __func__
, Status
));
414 CopyMem (&Scr
, Buffer
, 8);
415 if (Scr
.SD_SPEC
== 2) {
416 if (Scr
.SD_SPEC3
== 1) {
417 if (Scr
.SD_SPEC4
== 1) {
418 DEBUG ((EFI_D_INFO
, "Found SD Card for Spec Version 4.xx\n"));
420 DEBUG ((EFI_D_INFO
, "Found SD Card for Spec Version 3.0x\n"));
423 if (Scr
.SD_SPEC4
== 0) {
424 DEBUG ((EFI_D_INFO
, "Found SD Card for Spec Version 2.0\n"));
426 DEBUG ((EFI_D_ERROR
, "Found invalid SD Card\n"));
430 if ((Scr
.SD_SPEC3
== 0) && (Scr
.SD_SPEC4
== 0)) {
431 if (Scr
.SD_SPEC
== 1) {
432 DEBUG ((EFI_D_INFO
, "Found SD Card for Spec Version 1.10\n"));
434 DEBUG ((EFI_D_INFO
, "Found SD Card for Spec Version 1.0\n"));
437 DEBUG ((EFI_D_ERROR
, "Found invalid SD Card\n"));
442 /* SD Switch, Mode:1, Group:0, Value:1 */
443 CmdArg
= 1 << 31 | 0x00FFFFFF;
444 CmdArg
&= ~(0xF << (0 * 4));
445 CmdArg
|= 1 << (0 * 4);
446 Status
= MmcHost
->SendCommand (MmcHost
, MMC_CMD6
, CmdArg
);
447 if (EFI_ERROR (Status
)) {
448 DEBUG ((EFI_D_ERROR
, "%a(MMC_CMD6): Error and Status = %r\n", Status
));
451 Status
= MmcHost
->ReadBlockData (MmcHost
, 0, 64, Buffer
);
452 if (EFI_ERROR (Status
)) {
453 DEBUG ((EFI_D_ERROR
, "%a(MMC_CMD6): ReadBlockData Error and Status = %r\n", Status
));
458 if (Scr
.SD_BUS_WIDTHS
& SD_BUS_WIDTH_4BIT
) {
459 CmdArg
= MmcHostInstance
->CardInfo
.RCA
<< 16;
460 Status
= MmcHost
->SendCommand (MmcHost
, MMC_CMD55
, CmdArg
);
461 if (EFI_ERROR (Status
)) {
462 DEBUG ((EFI_D_ERROR
, "%a(MMC_CMD55): Error and Status = %r\n", Status
));
466 Status
= MmcHost
->SendCommand (MmcHost
, MMC_CMD6
, 2);
467 if (EFI_ERROR (Status
)) {
468 DEBUG ((EFI_D_ERROR
, "%a(MMC_CMD6): Error and Status = %r\n", Status
));
472 if (MMC_HOST_HAS_SETIOS(MmcHost
)) {
473 Status
= MmcHost
->SetIos (MmcHost
, 26 * 1000 * 1000, 4, EMMCBACKWARD
);
474 if (EFI_ERROR (Status
)) {
475 DEBUG ((EFI_D_ERROR
, "%a(SetIos): Error and Status = %r\n", Status
));
485 MmcIdentificationMode (
486 IN MMC_HOST_INSTANCE
*MmcHostInstance
494 EFI_MMC_HOST_PROTOCOL
*MmcHost
;
495 OCR_RESPONSE OcrResponse
;
497 MmcHost
= MmcHostInstance
->MmcHost
;
501 if (MmcHost
== NULL
) {
502 return EFI_INVALID_PARAMETER
;
505 // We can get into this function if we restart the identification mode
506 if (MmcHostInstance
->State
== MmcHwInitializationState
) {
507 // Initialize the MMC Host HW
508 Status
= MmcNotifyState (MmcHostInstance
, MmcHwInitializationState
);
509 if (EFI_ERROR (Status
)) {
510 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode() : Error MmcHwInitializationState, Status=%r.\n", Status
));
515 Status
= MmcHost
->SendCommand (MmcHost
, MMC_CMD0
, 0);
516 if (EFI_ERROR (Status
)) {
517 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode(MMC_CMD0): Error, Status=%r.\n", Status
));
520 Status
= MmcNotifyState (MmcHostInstance
, MmcIdleState
);
521 if (EFI_ERROR (Status
)) {
522 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode() : Error MmcIdleState, Status=%r.\n", Status
));
526 // Send CMD1 to get OCR (MMC)
527 // This command only valid for MMC and eMMC
528 Timeout
= MAX_RETRY_COUNT
;
530 Status
= MmcHost
->SendCommand (MmcHost
, MMC_CMD1
, EMMC_CMD1_CAPACITY_GREATER_THAN_2GB
);
531 if (EFI_ERROR (Status
))
533 Status
= MmcHost
->ReceiveResponse (MmcHost
, MMC_RESPONSE_TYPE_OCR
, (UINT32
*)&OcrResponse
);
534 if (EFI_ERROR (Status
)) {
535 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode() : Failed to receive OCR, Status=%r.\n", Status
));
539 } while (!OcrResponse
.Ocr
.PowerUp
&& (Timeout
> 0));
540 if (Status
== EFI_SUCCESS
) {
541 if (!OcrResponse
.Ocr
.PowerUp
) {
542 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode(MMC_CMD1): Card initialisation failure, Status=%r.\n", Status
));
543 return EFI_DEVICE_ERROR
;
545 OcrResponse
.Ocr
.PowerUp
= 0;
546 if (OcrResponse
.Raw
== EMMC_CMD1_CAPACITY_GREATER_THAN_2GB
) {
547 MmcHostInstance
->CardInfo
.OCRData
.AccessMode
= BIT1
;
550 MmcHostInstance
->CardInfo
.OCRData
.AccessMode
= 0x0;
552 // Check whether MMC or eMMC
553 if (OcrResponse
.Raw
== EMMC_CMD1_CAPACITY_GREATER_THAN_2GB
||
554 OcrResponse
.Raw
== EMMC_CMD1_CAPACITY_LESS_THAN_2GB
) {
555 return EmmcIdentificationMode (MmcHostInstance
, OcrResponse
);
559 // Are we using SDIO ?
560 Status
= MmcHost
->SendCommand (MmcHost
, MMC_CMD5
, 0);
561 if (Status
== EFI_SUCCESS
) {
562 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode(MMC_CMD5): Error - SDIO not supported, Status=%r.\n", Status
));
563 return EFI_UNSUPPORTED
;
566 // Check which kind of card we are using. Ver2.00 or later SD Memory Card (PL180 is SD v1.1)
567 CmdArg
= (0x0UL
<< 12 | BIT8
| 0xCEUL
<< 0);
568 Status
= MmcHost
->SendCommand (MmcHost
, MMC_CMD8
, CmdArg
);
569 if (Status
== EFI_SUCCESS
) {
570 DEBUG ((EFI_D_ERROR
, "Card is SD2.0 => Supports high capacity\n"));
572 Status
= MmcHost
->ReceiveResponse (MmcHost
, MMC_RESPONSE_TYPE_R7
, Response
);
573 if (EFI_ERROR (Status
)) {
574 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode() : Failed to receive response to CMD8, Status=%r.\n", Status
));
577 PrintResponseR1 (Response
[0]);
578 // Check if it is valid response
579 if (Response
[0] != CmdArg
) {
580 DEBUG ((EFI_D_ERROR
, "The Card is not usable\n"));
581 return EFI_UNSUPPORTED
;
584 DEBUG ((EFI_D_ERROR
, "Not a SD2.0 Card\n"));
587 // We need to wait for the MMC or SD card is ready => (gCardInfo.OCRData.PowerUp == 1)
588 Timeout
= MAX_RETRY_COUNT
;
589 while (Timeout
> 0) {
590 // SD Card or MMC Card ? CMD55 indicates to the card that the next command is an application specific command
591 Status
= MmcHost
->SendCommand (MmcHost
, MMC_CMD55
, 0);
592 if (Status
== EFI_SUCCESS
) {
593 DEBUG ((EFI_D_INFO
, "Card should be SD\n"));
595 MmcHostInstance
->CardInfo
.CardType
= SD_CARD_2
;
597 MmcHostInstance
->CardInfo
.CardType
= SD_CARD
;
600 // Note: The first time CmdArg will be zero
601 CmdArg
= ((UINTN
*) &(MmcHostInstance
->CardInfo
.OCRData
))[0];
605 Status
= MmcHost
->SendCommand (MmcHost
, MMC_ACMD41
, CmdArg
);
606 if (!EFI_ERROR (Status
)) {
607 Status
= MmcHost
->ReceiveResponse (MmcHost
, MMC_RESPONSE_TYPE_OCR
, Response
);
608 if (EFI_ERROR (Status
)) {
609 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode() : Failed to receive OCR, Status=%r.\n", Status
));
612 ((UINT32
*) &(MmcHostInstance
->CardInfo
.OCRData
))[0] = Response
[0];
615 DEBUG ((EFI_D_INFO
, "Card should be MMC\n"));
616 MmcHostInstance
->CardInfo
.CardType
= MMC_CARD
;
618 Status
= MmcHost
->SendCommand (MmcHost
, MMC_CMD1
, 0x800000);
619 if (!EFI_ERROR (Status
)) {
620 Status
= MmcHost
->ReceiveResponse (MmcHost
, MMC_RESPONSE_TYPE_OCR
, Response
);
621 if (EFI_ERROR (Status
)) {
622 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode() : Failed to receive OCR, Status=%r.\n", Status
));
625 ((UINT32
*) &(MmcHostInstance
->CardInfo
.OCRData
))[0] = Response
[0];
629 if (!EFI_ERROR (Status
)) {
630 if (!MmcHostInstance
->CardInfo
.OCRData
.PowerUp
) {
634 if ((MmcHostInstance
->CardInfo
.CardType
== SD_CARD_2
) && (MmcHostInstance
->CardInfo
.OCRData
.AccessMode
& BIT1
)) {
635 MmcHostInstance
->CardInfo
.CardType
= SD_CARD_2_HIGH
;
636 DEBUG ((EFI_D_ERROR
, "High capacity card.\n"));
638 break; // The MMC/SD card is ready. Continue the Identification Mode
647 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode(): No Card\n"));
650 PrintOCR (Response
[0]);
653 Status
= MmcNotifyState (MmcHostInstance
, MmcReadyState
);
654 if (EFI_ERROR (Status
)) {
655 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode() : Error MmcReadyState\n"));
659 Status
= MmcHost
->SendCommand (MmcHost
, MMC_CMD2
, 0);
660 if (EFI_ERROR (Status
)) {
661 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode(MMC_CMD2): Error\n"));
664 Status
= MmcHost
->ReceiveResponse (MmcHost
, MMC_RESPONSE_TYPE_CID
, Response
);
665 if (EFI_ERROR (Status
)) {
666 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode() : Failed to receive CID, Status=%r.\n", Status
));
672 Status
= MmcHost
->NotifyState (MmcHost
, MmcIdentificationState
);
673 if (EFI_ERROR (Status
)) {
674 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode() : Error MmcIdentificationState\n"));
679 // Note, SD specifications say that "if the command execution causes a state change, it
680 // will be visible to the host in the response to the next command"
681 // The status returned for this CMD3 will be 2 - identification
684 Status
= MmcHost
->SendCommand (MmcHost
, MMC_CMD3
, CmdArg
);
685 if (EFI_ERROR (Status
)) {
686 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode(MMC_CMD3): Error\n"));
690 Status
= MmcHost
->ReceiveResponse (MmcHost
, MMC_RESPONSE_TYPE_RCA
, Response
);
691 if (EFI_ERROR (Status
)) {
692 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode() : Failed to receive RCA, Status=%r.\n", Status
));
695 PrintRCA (Response
[0]);
697 // For MMC card, RCA is assigned by CMD3 while CMD3 dumps the RCA for SD card
698 if (MmcHostInstance
->CardInfo
.CardType
!= MMC_CARD
) {
699 MmcHostInstance
->CardInfo
.RCA
= Response
[0] >> 16;
701 MmcHostInstance
->CardInfo
.RCA
= CmdArg
;
703 Status
= MmcNotifyState (MmcHostInstance
, MmcStandByState
);
704 if (EFI_ERROR (Status
)) {
705 DEBUG ((EFI_D_ERROR
, "MmcIdentificationMode() : Error MmcStandByState\n"));
713 InitializeMmcDevice (
714 IN MMC_HOST_INSTANCE
*MmcHostInstance
718 EFI_MMC_HOST_PROTOCOL
*MmcHost
;
722 MmcHost
= MmcHostInstance
->MmcHost
;
724 Status
= MmcIdentificationMode (MmcHostInstance
);
725 if (EFI_ERROR (Status
)) {
726 DEBUG((EFI_D_ERROR
, "InitializeMmcDevice(): Error in Identification Mode, Status=%r\n", Status
));
730 Status
= MmcNotifyState (MmcHostInstance
, MmcTransferState
);
731 if (EFI_ERROR (Status
)) {
732 DEBUG((EFI_D_ERROR
, "InitializeMmcDevice(): Error MmcTransferState, Status=%r\n", Status
));
736 if (MmcHostInstance
->CardInfo
.CardType
!= EMMC_CARD
) {
737 Status
= InitializeSdMmcDevice (MmcHostInstance
);
739 Status
= InitializeEmmcDevice (MmcHostInstance
);
741 if (EFI_ERROR (Status
)) {
746 Status
= MmcHost
->SendCommand (MmcHost
, MMC_CMD16
, MmcHostInstance
->BlockIo
.Media
->BlockSize
);
747 if (EFI_ERROR (Status
)) {
748 DEBUG((EFI_D_ERROR
, "InitializeMmcDevice(MMC_CMD16): Error MmcHostInstance->BlockIo.Media->BlockSize: %d and Error = %r\n",
749 MmcHostInstance
->BlockIo
.Media
->BlockSize
, Status
));
753 // Block Count (not used). Could return an error for SD card
754 if (MmcHostInstance
->CardInfo
.CardType
== MMC_CARD
) {
755 Status
= MmcHost
->SendCommand (MmcHost
, MMC_CMD23
, BlockCount
);
756 if (EFI_ERROR (Status
)) {
757 DEBUG((EFI_D_ERROR
, "InitializeMmcDevice(MMC_CMD23): Error, Status=%r\n", Status
));