sd.c (ce8ee02d519ab20c5b87d3b3929b5e44ad89e26f) sd.c (d6743a8a1ae38269a41094ad14d7ef86199f661d)
1/*
2 * linux/drivers/mmc/core/sd.c
3 *
4 * Copyright (C) 2003-2004 Russell King, All Rights Reserved.
5 * SD support Copyright (C) 2004 Ian Molton, All Rights Reserved.
6 * Copyright (C) 2005-2007 Pierre Ossman, All Rights Reserved.
7 *
8 * This program is free software; you can redistribute it and/or modify

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577/*
578 * UHS-I specific initialization procedure
579 */
580static int mmc_sd_init_uhs_card(struct mmc_card *card)
581{
582 int err;
583 u8 *status;
584
1/*
2 * linux/drivers/mmc/core/sd.c
3 *
4 * Copyright (C) 2003-2004 Russell King, All Rights Reserved.
5 * SD support Copyright (C) 2004 Ian Molton, All Rights Reserved.
6 * Copyright (C) 2005-2007 Pierre Ossman, All Rights Reserved.
7 *
8 * This program is free software; you can redistribute it and/or modify

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577/*
578 * UHS-I specific initialization procedure
579 */
580static int mmc_sd_init_uhs_card(struct mmc_card *card)
581{
582 int err;
583 u8 *status;
584
585 if (!card->scr.sda_spec3)
586 return 0;
587
588 if (!(card->csd.cmdclass & CCC_SWITCH))
589 return 0;
590
591 status = kmalloc(64, GFP_KERNEL);
592 if (!status)
593 return -ENOMEM;
594
595 /* Set 4-bit bus width */
585 if (!(card->csd.cmdclass & CCC_SWITCH))
586 return 0;
587
588 status = kmalloc(64, GFP_KERNEL);
589 if (!status)
590 return -ENOMEM;
591
592 /* Set 4-bit bus width */
596 if ((card->host->caps & MMC_CAP_4_BIT_DATA) &&
597 (card->scr.bus_widths & SD_SCR_BUS_WIDTH_4)) {
598 err = mmc_app_set_bus_width(card, MMC_BUS_WIDTH_4);
599 if (err)
600 goto out;
593 err = mmc_app_set_bus_width(card, MMC_BUS_WIDTH_4);
594 if (err)
595 goto out;
601
596
602 mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
603 }
597 mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
604
605 /*
606 * Select the bus speed mode depending on host
607 * and card capability.
608 */
609 sd_update_bus_speed_mode(card);
610
611 /* Set the driver strength for the card */

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1028 mmc_remove_card(card);
1029 goto retry;
1030 }
1031 goto done;
1032 }
1033 }
1034
1035 /* Initialization sequence for UHS-I cards */
598
599 /*
600 * Select the bus speed mode depending on host
601 * and card capability.
602 */
603 sd_update_bus_speed_mode(card);
604
605 /* Set the driver strength for the card */

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1022 mmc_remove_card(card);
1023 goto retry;
1024 }
1025 goto done;
1026 }
1027 }
1028
1029 /* Initialization sequence for UHS-I cards */
1036 if (rocr & SD_ROCR_S18A) {
1030 if (rocr & SD_ROCR_S18A && mmc_host_uhs(host)) {
1037 err = mmc_sd_init_uhs_card(card);
1038 if (err)
1039 goto free_card;
1040 } else {
1041 /*
1042 * Attempt to change to high-speed (if supported)
1043 */
1044 err = mmc_sd_switch_hs(card);

--- 262 unchanged lines hidden --- 		1031 err = mmc_sd_init_uhs_card(card);
1032 if (err)
1033 goto free_card;
1034 } else {
1035 /*
1036 * Attempt to change to high-speed (if supported)
1037 */
1038 err = mmc_sd_switch_hs(card);

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