Replace MMC/SD driver to fit new framework.

IR265772: MMC driver does not detect SDHC cards.

IR254201: Restructure MMC/SD driver for U8500 board according to the
block device framework in mainline U-Boot.

Changes to mmc framework:
- Multi Block Read support in mmc framework.
- Wrap Multi Block Write/Read to be able to adopt for large transaction.
- Removed incorrect check in EXT CSD for high capacity MMC.
- Corrected check for high capacity SD cards.
- Set MMC buswidth to 8, prio of using 4.

Known limitations/bugs in mmc framework:
- High capacity MMC, will likely not get the correct density.
- High speed is set, whether or not the host supports it or not.

board/st/u8500/mmc_utils:
IMPORTANT FOR DEVELOPERS:
- Removed unessary U-Boot commands which is already supported in
  cmd_fat.
- mmc_read_cmd_file: Read command.txt into bootcmd env from FAT FS in
  SD card.
- write_partition_block: Writes the MBR if it is not already written.

board/st/u8500/mmc_host[c.h]:
- Implements the entire MMC/SD host driver for the PL180 block.
- There is still room for optimization:
	Increase CLK-speed.
	Use  high-speed for SD cards.
	Is GPIO setup correctly for both cards an eMMC.
	EarlyDrop support not fully tested.
	Dynamically turn on voltage/clocks to SD, not always.
	More...

Note:
- Increased read/write performance for eMMC, to around 5.4 MB/s for
  sequential read/write. Earlier measurements was 3.5 MB/s for read and
  2.6 MB/s for write.

ST-Ericsson ID: ER265772, CR267996, ER267993

Change-Id: I921102edbde761407ff5ad476d1bb99f5dc7a2ef
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/2288
Reviewed-by: Michael BRANDT <michael.brandt@stericsson.com>
Tested-by: Michael BRANDT <michael.brandt@stericsson.com>
Reviewed-by: Martin LUNDHOLM <martin.xa.lundholm@stericsson.com>
Tested-by: Martin LUNDHOLM <martin.xa.lundholm@stericsson.com>
Reviewed-by: Mikael LARSSON <mikael.xt.larsson@stericsson.com>
Tested-by: Mikael LARSSON <mikael.xt.larsson@stericsson.com>

2 files changed, 0 insertions, 120 deletions

diff --git a/include/asm-arm/arch-stw8500/emmc.h b/include/asm-arm/arch-stw8500/emmc.h
deleted file mode 100755
index 62256ae9e..000000000
--- a/include/asm-arm/arch-stw8500/emmc.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright (C) ST-Ericsson SA 2009
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#ifndef _STM_EMMC_H
-#define _STM_EMMC_H
-
-
-#include <common.h>
-
-extern int 	emmc_init (u8); 
-int  	emmc_erase(u32, u32);
-int  	emmc_read (u32,u32,u32);
-int  	emmc_write(u32,u32,u32);
-int 	emmc_write_pib(void);
-
-
-#endif /* !defined(_STM_EMMC_H) */
diff --git a/include/asm-arm/arch-stw8500/mmc.h b/include/asm-arm/arch-stw8500/mmc.h
deleted file mode 100755
index 0e089338a..000000000
--- a/include/asm-arm/arch-stw8500/mmc.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Copyright (C) ST-Ericsson SA 2009
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-#ifndef __MMC_NOMADIK_P_H__
-#define __MMC_NOMADIK_P_H__
-
-#define MAX_ERROR_VALUE -65
-typedef enum
-{
-    /* MMC specific error defines */
-    MMC_CMD_CRC_FAIL                    = (MAX_ERROR_VALUE - 1),            /* Command response received (but CRC check failed) */
-    MMC_DATA_CRC_FAIL                   = (MAX_ERROR_VALUE - 2),            /* Data bock sent/received (CRC check Failed) */
-    MMC_CMD_RSP_TIMEOUT                 = (MAX_ERROR_VALUE - 3),            /* Command response timeout */
-    MMC_DATA_TIMEOUT                    = (MAX_ERROR_VALUE - 4),            /* Data time out*/
-    MMC_TX_UNDERRUN                     = (MAX_ERROR_VALUE - 5),            /* Transmit FIFO under-run */
-    MMC_RX_OVERRUN                      = (MAX_ERROR_VALUE - 6),            /* Receive FIFO over-run */
-    MMC_START_BIT_ERR                   = (MAX_ERROR_VALUE - 7),            /* Start bit not detected on all data signals in widE bus mode */
-    MMC_CMD_OUT_OF_RANGE                = (MAX_ERROR_VALUE - 8),            /* CMD's argument was out of range.*/
-    MMC_ADDR_MISALIGNED                 = (MAX_ERROR_VALUE - 9),            /* Misaligned address */
-    MMC_BLOCK_LEN_ERR                   = (MAX_ERROR_VALUE - 10),           /* Transferred block length is not allowed for the card or the number of transferred bytes does not match the block length */
-    MMC_ERASE_SEQ_ERR                   = (MAX_ERROR_VALUE - 11),           /* An error in the sequence of erase command occurs.*/
-    MMC_BAD_ERASE_PARAM                 = (MAX_ERROR_VALUE - 12),           /* An Invalid selection for erase groups */
-    MMC_WRITE_PROT_VIOLATION            = (MAX_ERROR_VALUE - 13),           /* Attempt to program a write protect block */
-    MMC_LOCK_UNLOCK_FAILED              = (MAX_ERROR_VALUE - 14),           /* Sequence or password error has been detected in unlock command or if there was an attempt to access a locked card */
-    MMC_COM_CRC_FAILED                  = (MAX_ERROR_VALUE - 15),           /* CRC check of the previous command failed */
-    MMC_ILLEGAL_CMD                     = (MAX_ERROR_VALUE - 16),           /* Command is not legal for the card state */
-    MMC_CARD_ECC_FAILED                 = (MAX_ERROR_VALUE - 17),           /* Card internal ECC was applied but failed to correct the data */
-    MMC_CC_ERROR                        = (MAX_ERROR_VALUE - 18),           /* Internal card controller error */
-    MMC_GENERAL_UNKNOWN_ERROR           = (MAX_ERROR_VALUE - 19),           /* General or Unknown error */
-    MMC_STREAM_READ_UNDERRUN            = (MAX_ERROR_VALUE - 20),           /* The card could not sustain data transfer in stream read operation. */
-    MMC_STREAM_WRITE_OVERRUN            = (MAX_ERROR_VALUE - 21),           /* The card could not sustain data programming in stream mode */
-    MMC_CID_CSD_OVERWRITE               = (MAX_ERROR_VALUE - 22),           /* CID/CSD overwrite error */
-    MMC_WP_ERASE_SKIP                   = (MAX_ERROR_VALUE - 23),           /* only partial address space was erased */
-    MMC_CARD_ECC_DISABLED               = (MAX_ERROR_VALUE - 24),           /* Command has been executed without using internal ECC */
-    MMC_ERASE_RESET                     = (MAX_ERROR_VALUE - 25),           /* Erase sequence was cleared before executing because an out of erase sequence command was received */
-    MMC_AKE_SEQ_ERROR                   = (MAX_ERROR_VALUE - 26),           /* Error in sequence of authentication. */
-    MMC_INVALID_VOLTRANGE               = (MAX_ERROR_VALUE - 27),
-    MMC_ADDR_OUT_OF_RANGE               = (MAX_ERROR_VALUE - 28),
-    MMC_SWITCH_ERROR                    = (MAX_ERROR_VALUE - 29),
-    MMC_SDIO_DISABLED                   = (MAX_ERROR_VALUE - 30),
-    MMC_SDIO_FUNCTION_BUSY              = (MAX_ERROR_VALUE - 31),
-    MMC_SDIO_FUNCTION_FAILED            = (MAX_ERROR_VALUE - 32),
-    MMC_SDIO_UNKNOWN_FUNCTION           = MAX_ERROR_VALUE,
-
-    /* standard error defines */
-    MMC_INTERNAL_ERROR                  = -8,
-    MMC_NOT_CONFIGURED                  = -7,
-    MMC_REQUEST_PENDING                 = -6,
-    MMC_REQUEST_NOT_APPLICABLE          = -5,
-    MMC_INVALID_PARAMETER               = -4,
-    MMC_UNSUPPORTED_FEATURE             = -3,
-    MMC_UNSUPPORTED_HW                  = -2,
-    MMC_ERROR                           = -1,
-    MMC_OK                              = 0,
-    MMC_INTERNAL_EVENT                  = 1,
-    MMC_REMAINING_PENDING_EVENTS        = 2,
-    MMC_REMAINING_FILTER_PENDING_EVENTS = 3,
-    MMC_NO_MORE_PENDING_EVENT           = 4,
-    MMC_NO_MORE_FILTER_PENDING_EVENT    = 5,
-    MMC_NO_PENDING_EVENT_ERROR          = 7,
-} t_mmc_error;
-
-int init_mmc_card(void);
-
-#endif
-