[4.19,09/13] staging: m57621-mmc: delete driver from the tree.
diff mbox series

Message ID 20210415144411.905263525@linuxfoundation.org
State New
Headers show
Series
  • Untitled series #495368
Related show

Commit Message

Greg Kroah-Hartman April 15, 2021, 2:47 p.m. UTC
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

[ Upstream commit 441bf7332d55c4d34afae9ffc3bbec621093f4d1 ]

The license text in this driver is "interesting" and not really obvious
that it is supposed to be able to be distributed in the kernel source
tree.  Yes, the MODULE_LICENSE() text says GPL, so it's probably ok, but
to be safe, I am deleting this driver.  I will be glad to add it back if
the license is properly sorted out, but for now, this isn't worth the
potential risk, I should have never taken it in the first place.

Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: NeilBrown <neil@brown.name>
Cc: George Hilliard <thirtythreeforty@gmail.com>
Cc: "Christian L├╝tke-Stetzkamp" <christian@lkamp.de>
Cc: Nishad Kamdar <nishadkamdar@gmail.com>
Cc: Sergej Perschin <ser.perschin@gmail.com>
Cc: John Crispin <blogic@openwrt.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/Kconfig                |    2 -
 drivers/staging/Makefile               |    1 -
 drivers/staging/mt7621-mmc/Kconfig     |   16 -
 drivers/staging/mt7621-mmc/Makefile    |   42 -
 drivers/staging/mt7621-mmc/TODO        |    8 -
 drivers/staging/mt7621-mmc/board.h     |   63 -
 drivers/staging/mt7621-mmc/dbg.c       |  307 ---
 drivers/staging/mt7621-mmc/dbg.h       |  149 --
 drivers/staging/mt7621-mmc/mt6575_sd.h |  488 -----
 drivers/staging/mt7621-mmc/sd.c        | 2392 ------------------------
 10 files changed, 3468 deletions(-)
 delete mode 100644 drivers/staging/mt7621-mmc/Kconfig
 delete mode 100644 drivers/staging/mt7621-mmc/Makefile
 delete mode 100644 drivers/staging/mt7621-mmc/TODO
 delete mode 100644 drivers/staging/mt7621-mmc/board.h
 delete mode 100644 drivers/staging/mt7621-mmc/dbg.c
 delete mode 100644 drivers/staging/mt7621-mmc/dbg.h
 delete mode 100644 drivers/staging/mt7621-mmc/mt6575_sd.h
 delete mode 100644 drivers/staging/mt7621-mmc/sd.c

Patch
diff mbox series

diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 1abf76be2aa8..58e8140c1f57 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -114,8 +114,6 @@  source "drivers/staging/mt7621-spi/Kconfig"
 
 source "drivers/staging/mt7621-dma/Kconfig"
 
-source "drivers/staging/mt7621-mmc/Kconfig"
-
 source "drivers/staging/mt7621-eth/Kconfig"
 
 source "drivers/staging/mt7621-dts/Kconfig"
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index ab0cbe8815b1..6f3065569fa0 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -47,7 +47,6 @@  obj-$(CONFIG_SOC_MT7621)	+= mt7621-pci/
 obj-$(CONFIG_SOC_MT7621)	+= mt7621-pinctrl/
 obj-$(CONFIG_SOC_MT7621)	+= mt7621-spi/
 obj-$(CONFIG_SOC_MT7621)	+= mt7621-dma/
-obj-$(CONFIG_SOC_MT7621)	+= mt7621-mmc/
 obj-$(CONFIG_SOC_MT7621)	+= mt7621-eth/
 obj-$(CONFIG_SOC_MT7621)	+= mt7621-dts/
 obj-$(CONFIG_STAGING_GASKET_FRAMEWORK)	+= gasket/
diff --git a/drivers/staging/mt7621-mmc/Kconfig b/drivers/staging/mt7621-mmc/Kconfig
deleted file mode 100644
index c6dfe8c637dc..000000000000
--- a/drivers/staging/mt7621-mmc/Kconfig
+++ /dev/null
@@ -1,16 +0,0 @@ 
-config MTK_MMC
-	tristate "MTK SD/MMC"
-	depends on !MTD_NAND_RALINK && MMC
-
-config MTK_AEE_KDUMP
-	bool "MTK AEE KDUMP"
-	depends on MTK_MMC
-
-config MTK_MMC_CD_POLL
-	bool "Card Detect with Polling"
-	depends on MTK_MMC
-
-config MTK_MMC_EMMC_8BIT
-	bool "eMMC 8-bit support"
-	depends on MTK_MMC && RALINK_MT7628
-
diff --git a/drivers/staging/mt7621-mmc/Makefile b/drivers/staging/mt7621-mmc/Makefile
deleted file mode 100644
index caead0b54703..000000000000
--- a/drivers/staging/mt7621-mmc/Makefile
+++ /dev/null
@@ -1,42 +0,0 @@ 
-# Copyright Statement:
-#
-# This software/firmware and related documentation ("MediaTek Software") are
-# protected under relevant copyright laws. The information contained herein
-# is confidential and proprietary to MediaTek Inc. and/or its licensors.
-# Without the prior written permission of MediaTek inc. and/or its licensors,
-# any reproduction, modification, use or disclosure of MediaTek Software,
-# and information contained herein, in whole or in part, shall be strictly prohibited.
-#
-# MediaTek Inc. (C) 2010. All rights reserved.
-#
-# BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
-# THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
-# RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
-# AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
-# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
-# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
-# NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
-# SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
-# SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
-# THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
-# THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
-# CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
-# SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
-# STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
-# CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
-# AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
-# OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
-# MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
-#
-# The following software/firmware and/or related documentation ("MediaTek Software")
-# have been modified by MediaTek Inc. All revisions are subject to any receiver's
-# applicable license agreements with MediaTek Inc.
-
-obj-$(CONFIG_MTK_MMC) += mtk_sd.o
-mtk_sd-objs := sd.o dbg.o
-ifeq ($(CONFIG_MTK_AEE_KDUMP),y)
-EXTRA_CFLAGS		+= -DMT6575_SD_DEBUG
-endif
-
-clean:
-	@rm -f *.o modules.order .*.cmd
diff --git a/drivers/staging/mt7621-mmc/TODO b/drivers/staging/mt7621-mmc/TODO
deleted file mode 100644
index febb32d37e07..000000000000
--- a/drivers/staging/mt7621-mmc/TODO
+++ /dev/null
@@ -1,8 +0,0 @@ 
-
-- general code review and clean up
-- ensure device-tree requirements are documented
-- should probably be merged with drivers/mmc/host/mtk-sd.c
-- possibly fix to work with highmem pages so a bounce buffer isn't
-  needed.
-
-Cc: NeilBrown <neil@brown.name>
diff --git a/drivers/staging/mt7621-mmc/board.h b/drivers/staging/mt7621-mmc/board.h
deleted file mode 100644
index 983791ee308d..000000000000
--- a/drivers/staging/mt7621-mmc/board.h
+++ /dev/null
@@ -1,63 +0,0 @@ 
-/* Copyright Statement:
- *
- * This software/firmware and related documentation ("MediaTek Software") are
- * protected under relevant copyright laws. The information contained herein
- * is confidential and proprietary to MediaTek Inc. and/or its licensors.
- * Without the prior written permission of MediaTek inc. and/or its licensors,
- * any reproduction, modification, use or disclosure of MediaTek Software,
- * and information contained herein, in whole or in part, shall be strictly prohibited.
- */
-/* MediaTek Inc. (C) 2010. All rights reserved.
- *
- * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
- * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
- * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
- * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
- * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
- * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
- * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
- * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
- * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
- * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
- * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
- * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
- * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
- * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
- * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
- * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
- *
- * The following software/firmware and/or related documentation ("MediaTek Software")
- * have been modified by MediaTek Inc. All revisions are subject to any receiver's
- * applicable license agreements with MediaTek Inc.
- */
-
-#ifndef __ARCH_ARM_MACH_BOARD_H
-#define __ARCH_ARM_MACH_BOARD_H
-
-#define MSDC_CD_PIN_EN      BIT(0)  /* card detection pin is wired   */
-#define MSDC_WP_PIN_EN      BIT(1)  /* write protection pin is wired */
-#define MSDC_RST_PIN_EN     BIT(2)  /* emmc reset pin is wired       */
-#define MSDC_REMOVABLE      BIT(5)  /* removable slot                */
-
-#define MSDC_SMPL_RISING    (0)
-#define MSDC_SMPL_FALLING   (1)
-
-#define MSDC_CMD_PIN        (0)
-#define MSDC_DAT_PIN        (1)
-#define MSDC_CD_PIN         (2)
-#define MSDC_WP_PIN         (3)
-#define MSDC_RST_PIN        (4)
-
-struct msdc_hw {
-	unsigned char  clk_src;          /* host clock source */
-	unsigned long  flags;            /* hardware capability flags */
-
-	/* config gpio pull mode */
-	void (*config_gpio_pin)(int type, int pull);
-};
-
-extern struct msdc_hw msdc0_hw;
-
-#endif /* __ARCH_ARM_MACH_BOARD_H */
diff --git a/drivers/staging/mt7621-mmc/dbg.c b/drivers/staging/mt7621-mmc/dbg.c
deleted file mode 100644
index 6e518dce9029..000000000000
--- a/drivers/staging/mt7621-mmc/dbg.c
+++ /dev/null
@@ -1,307 +0,0 @@ 
-/* Copyright Statement:
- *
- * This software/firmware and related documentation ("MediaTek Software") are
- * protected under relevant copyright laws. The information contained herein
- * is confidential and proprietary to MediaTek Inc. and/or its licensors.
- * Without the prior written permission of MediaTek inc. and/or its licensors,
- * any reproduction, modification, use or disclosure of MediaTek Software,
- * and information contained herein, in whole or in part, shall be strictly prohibited.
- *
- * MediaTek Inc. (C) 2010. All rights reserved.
- *
- * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
- * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
- * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
- * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
- * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
- * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
- * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
- * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
- * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
- * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
- * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
- * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
- * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
- * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
- * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
- * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
- *
- * The following software/firmware and/or related documentation ("MediaTek Software")
- * have been modified by MediaTek Inc. All revisions are subject to any receiver's
- * applicable license agreements with MediaTek Inc.
- */
-
-#include <linux/version.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/kthread.h>
-#include <linux/delay.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/proc_fs.h>
-#include <linux/string.h>
-#include <linux/uaccess.h>
-// #include <mach/mt6575_gpt.h> /* --- by chhung */
-#include "dbg.h"
-#include "mt6575_sd.h"
-#include <linux/seq_file.h>
-
-static char cmd_buf[256];
-
-/* for debug zone */
-unsigned int sd_debug_zone[4] = {
-	0,
-	0,
-	0,
-	0
-};
-
-#if defined(MT6575_SD_DEBUG)
-/* for driver profile */
-#define TICKS_ONE_MS  (13000)
-u32 gpt_enable;
-u32 sdio_pro_enable;   /* make sure gpt is enabled */
-u32 sdio_pro_time;     /* no more than 30s */
-struct sdio_profile sdio_perfomance = {0};
-
-#if 0 /* --- chhung */
-void msdc_init_gpt(void)
-{
-	GPT_CONFIG config;
-
-	config.num  = GPT6;
-	config.mode = GPT_FREE_RUN;
-	config.clkSrc = GPT_CLK_SRC_SYS;
-	config.clkDiv = GPT_CLK_DIV_1;   /* 13MHz GPT6 */
-
-	if (GPT_Config(config) == FALSE)
-		return;
-
-	GPT_Start(GPT6);
-}
-#endif /* end of --- */
-
-u32 msdc_time_calc(u32 old_L32, u32 old_H32, u32 new_L32, u32 new_H32)
-{
-	u32 ret = 0;
-
-	if (new_H32 == old_H32) {
-		ret = new_L32 - old_L32;
-	} else if (new_H32 == (old_H32 + 1)) {
-		if (new_L32 > old_L32)
-			pr_debug("msdc old_L<0x%x> new_L<0x%x>\n", old_L32, new_L32);
-		ret = (0xffffffff - old_L32);
-		ret += new_L32;
-	} else {
-		pr_debug("msdc old_H<0x%x> new_H<0x%x>\n", old_H32, new_H32);
-	}
-
-	return ret;
-}
-
-void msdc_sdio_profile(struct sdio_profile *result)
-{
-	struct cmd_profile *cmd;
-	u32 i;
-
-	pr_debug("sdio === performance dump ===\n");
-	pr_debug("sdio === total execute tick<%d> time<%dms> Tx<%dB> Rx<%dB>\n",
-		 result->total_tc, result->total_tc / TICKS_ONE_MS,
-		 result->total_tx_bytes, result->total_rx_bytes);
-
-	/* CMD52 Dump */
-	cmd = &result->cmd52_rx;
-	pr_debug("sdio === CMD52 Rx <%d>times tick<%d> Max<%d> Min<%d> Aver<%d>\n", cmd->count, cmd->tot_tc,
-		 cmd->max_tc, cmd->min_tc, cmd->tot_tc / cmd->count);
-	cmd = &result->cmd52_tx;
-	pr_debug("sdio === CMD52 Tx <%d>times tick<%d> Max<%d> Min<%d> Aver<%d>\n", cmd->count, cmd->tot_tc,
-		 cmd->max_tc, cmd->min_tc, cmd->tot_tc / cmd->count);
-
-	/* CMD53 Rx bytes + block mode */
-	for (i = 0; i < 512; i++) {
-		cmd = &result->cmd53_rx_byte[i];
-		if (cmd->count) {
-			pr_debug("sdio<%6d><%3dB>_Rx_<%9d><%9d><%6d><%6d>_<%9dB><%2dM>\n", cmd->count, i, cmd->tot_tc,
-				 cmd->max_tc, cmd->min_tc, cmd->tot_tc / cmd->count,
-				 cmd->tot_bytes, (cmd->tot_bytes / 10) * 13 / (cmd->tot_tc / 10));
-		}
-	}
-	for (i = 0; i < 100; i++) {
-		cmd = &result->cmd53_rx_blk[i];
-		if (cmd->count) {
-			pr_debug("sdio<%6d><%3d>B_Rx_<%9d><%9d><%6d><%6d>_<%9dB><%2dM>\n", cmd->count, i, cmd->tot_tc,
-				 cmd->max_tc, cmd->min_tc, cmd->tot_tc / cmd->count,
-				 cmd->tot_bytes, (cmd->tot_bytes / 10) * 13 / (cmd->tot_tc / 10));
-		}
-	}
-
-	/* CMD53 Tx bytes + block mode */
-	for (i = 0; i < 512; i++) {
-		cmd = &result->cmd53_tx_byte[i];
-		if (cmd->count) {
-			pr_debug("sdio<%6d><%3dB>_Tx_<%9d><%9d><%6d><%6d>_<%9dB><%2dM>\n", cmd->count, i, cmd->tot_tc,
-				 cmd->max_tc, cmd->min_tc, cmd->tot_tc / cmd->count,
-				 cmd->tot_bytes, (cmd->tot_bytes / 10) * 13 / (cmd->tot_tc / 10));
-		}
-	}
-	for (i = 0; i < 100; i++) {
-		cmd = &result->cmd53_tx_blk[i];
-		if (cmd->count) {
-			pr_debug("sdio<%6d><%3d>B_Tx_<%9d><%9d><%6d><%6d>_<%9dB><%2dM>\n", cmd->count, i, cmd->tot_tc,
-				 cmd->max_tc, cmd->min_tc, cmd->tot_tc / cmd->count,
-				 cmd->tot_bytes, (cmd->tot_bytes / 10) * 13 / (cmd->tot_tc / 10));
-		}
-	}
-
-	pr_debug("sdio === performance dump done ===\n");
-}
-
-//========= sdio command table ===========
-void msdc_performance(u32 opcode, u32 sizes, u32 bRx, u32 ticks)
-{
-	struct sdio_profile *result = &sdio_perfomance;
-	struct cmd_profile *cmd;
-	u32 block;
-
-	if (sdio_pro_enable == 0)
-		return;
-
-	if (opcode == 52) {
-		cmd = bRx ?  &result->cmd52_rx : &result->cmd52_tx;
-	} else if (opcode == 53) {
-		if (sizes < 512) {
-			cmd = bRx ?  &result->cmd53_rx_byte[sizes] : &result->cmd53_tx_byte[sizes];
-		} else {
-			block = sizes / 512;
-			if (block >= 99) {
-				pr_err("cmd53 error blocks\n");
-				while (1)
-					;
-			}
-			cmd = bRx ?  &result->cmd53_rx_blk[block] : &result->cmd53_tx_blk[block];
-		}
-	} else {
-		return;
-	}
-
-	/* update the members */
-	if (ticks > cmd->max_tc)
-		cmd->max_tc = ticks;
-	if (cmd->min_tc == 0 || ticks < cmd->min_tc)
-		cmd->min_tc = ticks;
-	cmd->tot_tc += ticks;
-	cmd->tot_bytes += sizes;
-	cmd->count++;
-
-	if (bRx)
-		result->total_rx_bytes += sizes;
-	else
-		result->total_tx_bytes += sizes;
-	result->total_tc += ticks;
-
-	/* dump when total_tc > 30s */
-	if (result->total_tc >= sdio_pro_time * TICKS_ONE_MS * 1000) {
-		msdc_sdio_profile(result);
-		memset(result, 0, sizeof(struct sdio_profile));
-	}
-}
-
-//========== driver proc interface ===========
-static int msdc_debug_proc_read(struct seq_file *s, void *p)
-{
-	seq_puts(s, "\n=========================================\n");
-	seq_puts(s, "Index<0> + Id + Zone\n");
-	seq_puts(s, "-> PWR<9> WRN<8> | FIO<7> OPS<6> FUN<5> CFG<4> | INT<3> RSP<2> CMD<1> DMA<0>\n");
-	seq_puts(s, "-> echo 0 3 0x3ff >msdc_bebug -> host[3] debug zone set to 0x3ff\n");
-	seq_printf(s, "-> MSDC[0] Zone: 0x%.8x\n", sd_debug_zone[0]);
-	seq_printf(s, "-> MSDC[1] Zone: 0x%.8x\n", sd_debug_zone[1]);
-	seq_printf(s, "-> MSDC[2] Zone: 0x%.8x\n", sd_debug_zone[2]);
-	seq_printf(s, "-> MSDC[3] Zone: 0x%.8x\n", sd_debug_zone[3]);
-
-	seq_puts(s, "Index<3> + SDIO_PROFILE + TIME\n");
-	seq_puts(s, "-> echo 3 1 0x1E >msdc_bebug -> enable sdio_profile, 30s\n");
-	seq_printf(s, "-> SDIO_PROFILE<%d> TIME<%ds>\n", sdio_pro_enable, sdio_pro_time);
-	seq_puts(s, "=========================================\n\n");
-
-	return 0;
-}
-
-static ssize_t msdc_debug_proc_write(struct file *file,
-				     const char __user *buf,
-				     size_t count, loff_t *data)
-{
-	int ret;
-
-	int cmd, p1, p2;
-	int id, zone;
-	int mode, size;
-
-	if (count == 0)
-		return -1;
-	if (count > 255)
-		count = 255;
-
-	if (copy_from_user(cmd_buf, buf, count))
-		return -EFAULT;
-
-	cmd_buf[count] = '\0';
-	pr_debug("msdc Write %s\n", cmd_buf);
-
-	sscanf(cmd_buf, "%x %x %x", &cmd, &p1, &p2);
-
-	if (cmd == SD_TOOL_ZONE) {
-		id = p1;
-		zone = p2;
-		zone &= 0x3ff;
-		pr_debug("msdc host_id<%d> zone<0x%.8x>\n", id, zone);
-		if (id >= 0 && id <= 3) {
-			sd_debug_zone[id] = zone;
-		} else if (id == 4) {
-			sd_debug_zone[0] = sd_debug_zone[1] = zone;
-			sd_debug_zone[2] = sd_debug_zone[3] = zone;
-		} else {
-			pr_err("msdc host_id error when set debug zone\n");
-		}
-	} else if (cmd == SD_TOOL_SDIO_PROFILE) {
-		if (p1 == 1) { /* enable profile */
-			if (gpt_enable == 0) {
-				// msdc_init_gpt(); /* --- by chhung */
-				gpt_enable = 1;
-			}
-			sdio_pro_enable = 1;
-			if (p2 == 0)
-				p2 = 1;
-			if (p2 >= 30)
-				p2 = 30;
-			sdio_pro_time = p2;
-		} else if (p1 == 0) {
-			/* todo */
-			sdio_pro_enable = 0;
-		}
-	}
-
-	return count;
-}
-
-static int msdc_debug_show(struct inode *inode, struct file *file)
-{
-	return single_open(file, msdc_debug_proc_read, NULL);
-}
-
-static const struct file_operations msdc_debug_fops = {
-	.owner		= THIS_MODULE,
-	.open		= msdc_debug_show,
-	.read		= seq_read,
-	.write		= msdc_debug_proc_write,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
-void msdc_debug_proc_init(void)
-{
-	proc_create("msdc_debug", 0660, NULL, &msdc_debug_fops);
-}
-EXPORT_SYMBOL_GPL(msdc_debug_proc_init);
-#endif
diff --git a/drivers/staging/mt7621-mmc/dbg.h b/drivers/staging/mt7621-mmc/dbg.h
deleted file mode 100644
index 2f2c56b73987..000000000000
--- a/drivers/staging/mt7621-mmc/dbg.h
+++ /dev/null
@@ -1,149 +0,0 @@ 
-/* Copyright Statement:
- *
- * This software/firmware and related documentation ("MediaTek Software") are
- * protected under relevant copyright laws. The information contained herein
- * is confidential and proprietary to MediaTek Inc. and/or its licensors.
- * Without the prior written permission of MediaTek inc. and/or its licensors,
- * any reproduction, modification, use or disclosure of MediaTek Software,
- * and information contained herein, in whole or in part, shall be strictly prohibited.
- *
- * MediaTek Inc. (C) 2010. All rights reserved.
- *
- * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
- * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
- * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
- * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
- * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
- * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
- * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
- * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
- * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
- * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
- * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
- * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
- * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
- * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
- * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
- * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
- *
- * The following software/firmware and/or related documentation ("MediaTek Software")
- * have been modified by MediaTek Inc. All revisions are subject to any receiver's
- * applicable license agreements with MediaTek Inc.
- */
-#ifndef __MT_MSDC_DEUBG__
-#define __MT_MSDC_DEUBG__
-
-//==========================
-extern u32 sdio_pro_enable;
-/* for a type command, e.g. CMD53, 2 blocks */
-struct cmd_profile {
-	u32 max_tc;    /* Max tick count */
-	u32 min_tc;
-	u32 tot_tc;    /* total tick count */
-	u32 tot_bytes;
-	u32 count;     /* the counts of the command */
-};
-
-/* dump when total_tc and total_bytes */
-struct sdio_profile {
-	u32 total_tc;         /* total tick count of CMD52 and CMD53 */
-	u32 total_tx_bytes;   /* total bytes of CMD53 Tx */
-	u32 total_rx_bytes;   /* total bytes of CMD53 Rx */
-
-	/*CMD52*/
-	struct cmd_profile cmd52_tx;
-	struct cmd_profile cmd52_rx;
-
-	/*CMD53 in byte unit */
-	struct cmd_profile cmd53_tx_byte[512];
-	struct cmd_profile cmd53_rx_byte[512];
-
-	/*CMD53 in block unit */
-	struct cmd_profile cmd53_tx_blk[100];
-	struct cmd_profile cmd53_rx_blk[100];
-};
-
-//==========================
-enum msdc_dbg {
-	SD_TOOL_ZONE = 0,
-	SD_TOOL_DMA_SIZE  = 1,
-	SD_TOOL_PM_ENABLE = 2,
-	SD_TOOL_SDIO_PROFILE = 3,
-};
-
-/* Debug message event */
-#define DBG_EVT_NONE        (0)       /* No event */
-#define DBG_EVT_DMA         (1 << 0)  /* DMA related event */
-#define DBG_EVT_CMD         (1 << 1)  /* MSDC CMD related event */
-#define DBG_EVT_RSP         (1 << 2)  /* MSDC CMD RSP related event */
-#define DBG_EVT_INT         (1 << 3)  /* MSDC INT event */
-#define DBG_EVT_CFG         (1 << 4)  /* MSDC CFG event */
-#define DBG_EVT_FUC         (1 << 5)  /* Function event */
-#define DBG_EVT_OPS         (1 << 6)  /* Read/Write operation event */
-#define DBG_EVT_FIO         (1 << 7)  /* FIFO operation event */
-#define DBG_EVT_WRN         (1 << 8)  /* Warning event */
-#define DBG_EVT_PWR         (1 << 9)  /* Power event */
-#define DBG_EVT_ALL         (0xffffffff)
-
-#define DBG_EVT_MASK        (DBG_EVT_ALL)
-
-extern unsigned int sd_debug_zone[4];
-#define TAG "msdc"
-#if 0 /* +++ chhung */
-#define BUG_ON(x) \
-do { \
-	if (x) { \
-		printk("[BUG] %s LINE:%d FILE:%s\n", #x, __LINE__, __FILE__); \
-		while (1)						\
-			;						\
-	} \
-} while (0)
-#endif /* end of +++ */
-
-#define N_MSG(evt, fmt, args...)
-/*
-do {    \
-    if ((DBG_EVT_##evt) & sd_debug_zone[host->id]) { \
-        printk(KERN_ERR TAG"%d -> "fmt" <- %s() : L<%d> PID<%s><0x%x>\n", \
-            host->id,  ##args , __FUNCTION__, __LINE__, current->comm, current->pid);	\
-    } \
-} while(0)
-*/
-
-#define ERR_MSG(fmt, args...) \
-do { \
-	printk(KERN_ERR TAG"%d -> "fmt" <- %s() : L<%d> PID<%s><0x%x>\n", \
-	       host->id,  ##args, __FUNCTION__, __LINE__, current->comm, current->pid); \
-} while (0);
-
-#if 1
-//defined CONFIG_MTK_MMC_CD_POLL
-#define INIT_MSG(fmt, args...)
-#define IRQ_MSG(fmt, args...)
-#else
-#define INIT_MSG(fmt, args...) \
-do { \
-	printk(KERN_ERR TAG"%d -> "fmt" <- %s() : L<%d> PID<%s><0x%x>\n", \
-	       host->id,  ##args, __FUNCTION__, __LINE__, current->comm, current->pid); \
-} while (0);
-
-/* PID in ISR in not corrent */
-#define IRQ_MSG(fmt, args...) \
-do { \
-	printk(KERN_ERR TAG"%d -> "fmt" <- %s() : L<%d>\n",	\
-	       host->id,  ##args, __FUNCTION__, __LINE__);	\
-} while (0);
-#endif
-
-void msdc_debug_proc_init(void);
-
-#if 0 /* --- chhung */
-void msdc_init_gpt(void);
-extern void GPT_GetCounter64(UINT32 *cntL32, UINT32 *cntH32);
-#endif /* end of --- */
-u32 msdc_time_calc(u32 old_L32, u32 old_H32, u32 new_L32, u32 new_H32);
-void msdc_performance(u32 opcode, u32 sizes, u32 bRx, u32 ticks);
-
-#endif
diff --git a/drivers/staging/mt7621-mmc/mt6575_sd.h b/drivers/staging/mt7621-mmc/mt6575_sd.h
deleted file mode 100644
index 4e287c140acb..000000000000
--- a/drivers/staging/mt7621-mmc/mt6575_sd.h
+++ /dev/null
@@ -1,488 +0,0 @@ 
-/* Copyright Statement:
- *
- * This software/firmware and related documentation ("MediaTek Software") are
- * protected under relevant copyright laws. The information contained herein
- * is confidential and proprietary to MediaTek Inc. and/or its licensors.
- * Without the prior written permission of MediaTek inc. and/or its licensors,
- * any reproduction, modification, use or disclosure of MediaTek Software,
- * and information contained herein, in whole or in part, shall be strictly prohibited.
- */
-/* MediaTek Inc. (C) 2010. All rights reserved.
- *
- * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
- * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
- * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
- * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
- * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
- * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
- * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
- * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
- * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
- * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
- * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
- * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
- * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
- * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
- * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
- * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
- *
- * The following software/firmware and/or related documentation ("MediaTek Software")
- * have been modified by MediaTek Inc. All revisions are subject to any receiver's
- * applicable license agreements with MediaTek Inc.
- */
-
-#ifndef MT6575_SD_H
-#define MT6575_SD_H
-
-#include <linux/bitops.h>
-#include <linux/mmc/host.h>
-
-// #include <mach/mt6575_reg_base.h> /* --- by chhung */
-
-/*--------------------------------------------------------------------------*/
-/* Common Definition                                                        */
-/*--------------------------------------------------------------------------*/
-#define MSDC_FIFO_SZ            (128)
-#define MSDC_FIFO_THD           (64)  // (128)
-#define MSDC_NUM                (4)
-
-#define MSDC_MS                 (0)
-#define MSDC_SDMMC              (1)
-
-#define MSDC_BUS_1BITS          (0)
-#define MSDC_BUS_4BITS          (1)
-#define MSDC_BUS_8BITS          (2)
-
-#define MSDC_BRUST_8B           (3)
-#define MSDC_BRUST_16B          (4)
-#define MSDC_BRUST_32B          (5)
-#define MSDC_BRUST_64B          (6)
-
-#define MSDC_PIN_PULL_NONE      (0)
-#define MSDC_PIN_PULL_DOWN      (1)
-#define MSDC_PIN_PULL_UP        (2)
-#define MSDC_PIN_KEEP           (3)
-
-#define MSDC_MAX_SCLK           (48000000) /* +/- by chhung */
-#define MSDC_MIN_SCLK           (260000)
-
-#define MSDC_AUTOCMD12          (0x0001)
-#define MSDC_AUTOCMD23          (0x0002)
-#define MSDC_AUTOCMD19          (0x0003)
-
-#define MSDC_EMMC_BOOTMODE0     (0)     /* Pull low CMD mode */
-#define MSDC_EMMC_BOOTMODE1     (1)     /* Reset CMD mode */
-
-enum {
-	RESP_NONE = 0,
-	RESP_R1,
-	RESP_R2,
-	RESP_R3,
-	RESP_R4,
-	RESP_R5,
-	RESP_R6,
-	RESP_R7,
-	RESP_R1B
-};
-
-/*--------------------------------------------------------------------------*/
-/* Register Offset                                                          */
-/*--------------------------------------------------------------------------*/
-#define MSDC_CFG         (0x0)
-#define MSDC_IOCON       (0x04)
-#define MSDC_PS          (0x08)
-#define MSDC_INT         (0x0c)
-#define MSDC_INTEN       (0x10)
-#define MSDC_FIFOCS      (0x14)
-#define MSDC_TXDATA      (0x18)
-#define MSDC_RXDATA      (0x1c)
-#define SDC_CFG          (0x30)
-#define SDC_CMD          (0x34)
-#define SDC_ARG          (0x38)
-#define SDC_STS          (0x3c)
-#define SDC_RESP0        (0x40)
-#define SDC_RESP1        (0x44)
-#define SDC_RESP2        (0x48)
-#define SDC_RESP3        (0x4c)
-#define SDC_BLK_NUM      (0x50)
-#define SDC_CSTS         (0x58)
-#define SDC_CSTS_EN      (0x5c)
-#define SDC_DCRC_STS     (0x60)
-#define EMMC_CFG0        (0x70)
-#define EMMC_CFG1        (0x74)
-#define EMMC_STS         (0x78)
-#define EMMC_IOCON       (0x7c)
-#define SDC_ACMD_RESP    (0x80)
-#define SDC_ACMD19_TRG   (0x84)
-#define SDC_ACMD19_STS   (0x88)
-#define MSDC_DMA_SA      (0x90)
-#define MSDC_DMA_CA      (0x94)
-#define MSDC_DMA_CTRL    (0x98)
-#define MSDC_DMA_CFG     (0x9c)
-#define MSDC_DBG_SEL     (0xa0)
-#define MSDC_DBG_OUT     (0xa4)
-#define MSDC_PATCH_BIT   (0xb0)
-#define MSDC_PATCH_BIT0  MSDC_PATCH_BIT
-#define MSDC_PATCH_BIT1  (0xb4)
-#define MSDC_PAD_CTL0    (0xe0)
-#define MSDC_PAD_CTL1    (0xe4)
-#define MSDC_PAD_CTL2    (0xe8)
-#define MSDC_PAD_TUNE    (0xec)
-#define MSDC_DAT_RDDLY0  (0xf0)
-#define MSDC_DAT_RDDLY1  (0xf4)
-#define MSDC_HW_DBG      (0xf8)
-#define MSDC_VERSION     (0x100)
-#define MSDC_ECO_VER     (0x104)
-
-/*--------------------------------------------------------------------------*/
-/* Register Mask                                                            */
-/*--------------------------------------------------------------------------*/
-
-/* MSDC_CFG mask */
-#define MSDC_CFG_MODE           (0x1  << 0)     /* RW */
-#define MSDC_CFG_CKPDN          (0x1  << 1)     /* RW */
-#define MSDC_CFG_RST            (0x1  << 2)     /* RW */
-#define MSDC_CFG_PIO            (0x1  << 3)     /* RW */
-#define MSDC_CFG_CKDRVEN        (0x1  << 4)     /* RW */
-#define MSDC_CFG_BV18SDT        (0x1  << 5)     /* RW */
-#define MSDC_CFG_BV18PSS        (0x1  << 6)     /* R  */
-#define MSDC_CFG_CKSTB          (0x1  << 7)     /* R  */
-#define MSDC_CFG_CKDIV          (0xff << 8)     /* RW */
-#define MSDC_CFG_CKMOD          (0x3  << 16)    /* RW */
-
-/* MSDC_IOCON mask */
-#define MSDC_IOCON_SDR104CKS    (0x1  << 0)     /* RW */
-#define MSDC_IOCON_RSPL         (0x1  << 1)     /* RW */
-#define MSDC_IOCON_DSPL         (0x1  << 2)     /* RW */
-#define MSDC_IOCON_DDLSEL       (0x1  << 3)     /* RW */
-#define MSDC_IOCON_DDR50CKD     (0x1  << 4)     /* RW */
-#define MSDC_IOCON_DSPLSEL      (0x1  << 5)     /* RW */
-#define MSDC_IOCON_D0SPL        (0x1  << 16)    /* RW */
-#define MSDC_IOCON_D1SPL        (0x1  << 17)    /* RW */
-#define MSDC_IOCON_D2SPL        (0x1  << 18)    /* RW */
-#define MSDC_IOCON_D3SPL        (0x1  << 19)    /* RW */
-#define MSDC_IOCON_D4SPL        (0x1  << 20)    /* RW */
-#define MSDC_IOCON_D5SPL        (0x1  << 21)    /* RW */
-#define MSDC_IOCON_D6SPL        (0x1  << 22)    /* RW */
-#define MSDC_IOCON_D7SPL        (0x1  << 23)    /* RW */
-#define MSDC_IOCON_RISCSZ       (0x3  << 24)    /* RW */
-
-/* MSDC_PS mask */
-#define MSDC_PS_CDEN            (0x1  << 0)     /* RW */
-#define MSDC_PS_CDSTS           (0x1  << 1)     /* R  */
-#define MSDC_PS_CDDEBOUNCE      (0xf  << 12)    /* RW */
-#define MSDC_PS_DAT             (0xff << 16)    /* R  */
-#define MSDC_PS_CMD             (0x1  << 24)    /* R  */
-#define MSDC_PS_WP              (0x1UL << 31)    /* R  */
-
-/* MSDC_INT mask */
-#define MSDC_INT_MMCIRQ         (0x1  << 0)     /* W1C */
-#define MSDC_INT_CDSC           (0x1  << 1)     /* W1C */
-#define MSDC_INT_ACMDRDY        (0x1  << 3)     /* W1C */
-#define MSDC_INT_ACMDTMO        (0x1  << 4)     /* W1C */
-#define MSDC_INT_ACMDCRCERR     (0x1  << 5)     /* W1C */
-#define MSDC_INT_DMAQ_EMPTY     (0x1  << 6)     /* W1C */
-#define MSDC_INT_SDIOIRQ        (0x1  << 7)     /* W1C */
-#define MSDC_INT_CMDRDY         (0x1  << 8)     /* W1C */
-#define MSDC_INT_CMDTMO         (0x1  << 9)     /* W1C */
-#define MSDC_INT_RSPCRCERR      (0x1  << 10)    /* W1C */
-#define MSDC_INT_CSTA           (0x1  << 11)    /* R */
-#define MSDC_INT_XFER_COMPL     (0x1  << 12)    /* W1C */
-#define MSDC_INT_DXFER_DONE     (0x1  << 13)    /* W1C */
-#define MSDC_INT_DATTMO         (0x1  << 14)    /* W1C */
-#define MSDC_INT_DATCRCERR      (0x1  << 15)    /* W1C */
-#define MSDC_INT_ACMD19_DONE    (0x1  << 16)    /* W1C */
-
-/* MSDC_INTEN mask */
-#define MSDC_INTEN_MMCIRQ       (0x1  << 0)     /* RW */
-#define MSDC_INTEN_CDSC         (0x1  << 1)     /* RW */
-#define MSDC_INTEN_ACMDRDY      (0x1  << 3)     /* RW */
-#define MSDC_INTEN_ACMDTMO      (0x1  << 4)     /* RW */
-#define MSDC_INTEN_ACMDCRCERR   (0x1  << 5)     /* RW */
-#define MSDC_INTEN_DMAQ_EMPTY   (0x1  << 6)     /* RW */
-#define MSDC_INTEN_SDIOIRQ      (0x1  << 7)     /* RW */
-#define MSDC_INTEN_CMDRDY       (0x1  << 8)     /* RW */
-#define MSDC_INTEN_CMDTMO       (0x1  << 9)     /* RW */
-#define MSDC_INTEN_RSPCRCERR    (0x1  << 10)    /* RW */
-#define MSDC_INTEN_CSTA         (0x1  << 11)    /* RW */
-#define MSDC_INTEN_XFER_COMPL   (0x1  << 12)    /* RW */
-#define MSDC_INTEN_DXFER_DONE   (0x1  << 13)    /* RW */
-#define MSDC_INTEN_DATTMO       (0x1  << 14)    /* RW */
-#define MSDC_INTEN_DATCRCERR    (0x1  << 15)    /* RW */
-#define MSDC_INTEN_ACMD19_DONE  (0x1  << 16)    /* RW */
-
-/* MSDC_FIFOCS mask */
-#define MSDC_FIFOCS_RXCNT       (0xff << 0)     /* R */
-#define MSDC_FIFOCS_TXCNT       (0xff << 16)    /* R */
-#define MSDC_FIFOCS_CLR         (0x1UL << 31)    /* RW */
-
-/* SDC_CFG mask */
-#define SDC_CFG_SDIOINTWKUP     (0x1  << 0)     /* RW */
-#define SDC_CFG_INSWKUP         (0x1  << 1)     /* RW */
-#define SDC_CFG_BUSWIDTH        (0x3  << 16)    /* RW */
-#define SDC_CFG_SDIO            (0x1  << 19)    /* RW */
-#define SDC_CFG_SDIOIDE         (0x1  << 20)    /* RW */
-#define SDC_CFG_INTATGAP        (0x1  << 21)    /* RW */
-#define SDC_CFG_DTOC            (0xffUL << 24)  /* RW */
-
-/* SDC_CMD mask */
-#define SDC_CMD_OPC             (0x3f << 0)     /* RW */
-#define SDC_CMD_BRK             (0x1  << 6)     /* RW */
-#define SDC_CMD_RSPTYP          (0x7  << 7)     /* RW */
-#define SDC_CMD_DTYP            (0x3  << 11)    /* RW */
-#define SDC_CMD_DTYP            (0x3  << 11)    /* RW */
-#define SDC_CMD_RW              (0x1  << 13)    /* RW */
-#define SDC_CMD_STOP            (0x1  << 14)    /* RW */
-#define SDC_CMD_GOIRQ           (0x1  << 15)    /* RW */
-#define SDC_CMD_BLKLEN          (0xfff << 16)    /* RW */
-#define SDC_CMD_AUTOCMD         (0x3  << 28)    /* RW */
-#define SDC_CMD_VOLSWTH         (0x1  << 30)    /* RW */
-
-/* SDC_STS mask */
-#define SDC_STS_SDCBUSY         (0x1  << 0)     /* RW */
-#define SDC_STS_CMDBUSY         (0x1  << 1)     /* RW */
-#define SDC_STS_SWR_COMPL       (0x1  << 31)    /* RW */
-
-/* SDC_DCRC_STS mask */
-#define SDC_DCRC_STS_NEG        (0xf  << 8)     /* RO */
-#define SDC_DCRC_STS_POS        (0xff << 0)     /* RO */
-
-/* EMMC_CFG0 mask */
-#define EMMC_CFG0_BOOTSTART     (0x1  << 0)     /* W */
-#define EMMC_CFG0_BOOTSTOP      (0x1  << 1)     /* W */
-#define EMMC_CFG0_BOOTMODE      (0x1  << 2)     /* RW */
-#define EMMC_CFG0_BOOTACKDIS    (0x1  << 3)     /* RW */
-#define EMMC_CFG0_BOOTWDLY      (0x7  << 12)    /* RW */
-#define EMMC_CFG0_BOOTSUPP      (0x1  << 15)    /* RW */
-
-/* EMMC_CFG1 mask */
-#define EMMC_CFG1_BOOTDATTMC    (0xfffff << 0)  /* RW */
-#define EMMC_CFG1_BOOTACKTMC    (0xfffUL << 20) /* RW */
-
-/* EMMC_STS mask */
-#define EMMC_STS_BOOTCRCERR     (0x1  << 0)     /* W1C */
-#define EMMC_STS_BOOTACKERR     (0x1  << 1)     /* W1C */
-#define EMMC_STS_BOOTDATTMO     (0x1  << 2)     /* W1C */
-#define EMMC_STS_BOOTACKTMO     (0x1  << 3)     /* W1C */
-#define EMMC_STS_BOOTUPSTATE    (0x1  << 4)     /* R */
-#define EMMC_STS_BOOTACKRCV     (0x1  << 5)     /* W1C */
-#define EMMC_STS_BOOTDATRCV     (0x1  << 6)     /* R */
-
-/* EMMC_IOCON mask */
-#define EMMC_IOCON_BOOTRST      (0x1  << 0)     /* RW */
-
-/* SDC_ACMD19_TRG mask */
-#define SDC_ACMD19_TRG_TUNESEL  (0xf  << 0)     /* RW */
-
-/* MSDC_DMA_CTRL mask */
-#define MSDC_DMA_CTRL_START     (0x1  << 0)     /* W */
-#define MSDC_DMA_CTRL_STOP      (0x1  << 1)     /* W */
-#define MSDC_DMA_CTRL_RESUME    (0x1  << 2)     /* W */
-#define MSDC_DMA_CTRL_MODE      (0x1  << 8)     /* RW */
-#define MSDC_DMA_CTRL_LASTBUF   (0x1  << 10)    /* RW */
-#define MSDC_DMA_CTRL_BRUSTSZ   (0x7  << 12)    /* RW */
-#define MSDC_DMA_CTRL_XFERSZ    (0xffffUL << 16)/* RW */
-
-/* MSDC_DMA_CFG mask */
-#define MSDC_DMA_CFG_STS        (0x1  << 0)     /* R */
-#define MSDC_DMA_CFG_DECSEN     (0x1  << 1)     /* RW */
-#define MSDC_DMA_CFG_BDCSERR    (0x1  << 4)     /* R */
-#define MSDC_DMA_CFG_GPDCSERR   (0x1  << 5)     /* R */
-
-/* MSDC_PATCH_BIT mask */
-#define MSDC_PATCH_BIT_WFLSMODE (0x1  << 0)     /* RW */
-#define MSDC_PATCH_BIT_ODDSUPP  (0x1  << 1)     /* RW */
-#define MSDC_PATCH_BIT_CKGEN_CK (0x1  << 6)     /* E2: Fixed to 1 */
-#define MSDC_PATCH_BIT_IODSSEL  (0x1  << 16)    /* RW */
-#define MSDC_PATCH_BIT_IOINTSEL (0x1  << 17)    /* RW */
-#define MSDC_PATCH_BIT_BUSYDLY  (0xf  << 18)    /* RW */
-#define MSDC_PATCH_BIT_WDOD     (0xf  << 22)    /* RW */
-#define MSDC_PATCH_BIT_IDRTSEL  (0x1  << 26)    /* RW */
-#define MSDC_PATCH_BIT_CMDFSEL  (0x1  << 27)    /* RW */
-#define MSDC_PATCH_BIT_INTDLSEL (0x1  << 28)    /* RW */
-#define MSDC_PATCH_BIT_SPCPUSH  (0x1  << 29)    /* RW */
-#define MSDC_PATCH_BIT_DECRCTMO (0x1  << 30)    /* RW */
-
-/* MSDC_PATCH_BIT1 mask */
-#define MSDC_PATCH_BIT1_WRDAT_CRCS  (0x7 << 3)
-#define MSDC_PATCH_BIT1_CMD_RSP     (0x7 << 0)
-
-/* MSDC_PAD_CTL0 mask */
-#define MSDC_PAD_CTL0_CLKDRVN   (0x7  << 0)     /* RW */
-#define MSDC_PAD_CTL0_CLKDRVP   (0x7  << 4)     /* RW */
-#define MSDC_PAD_CTL0_CLKSR     (0x1  << 8)     /* RW */
-#define MSDC_PAD_CTL0_CLKPD     (0x1  << 16)    /* RW */
-#define MSDC_PAD_CTL0_CLKPU     (0x1  << 17)    /* RW */
-#define MSDC_PAD_CTL0_CLKSMT    (0x1  << 18)    /* RW */
-#define MSDC_PAD_CTL0_CLKIES    (0x1  << 19)    /* RW */
-#define MSDC_PAD_CTL0_CLKTDSEL  (0xf  << 20)    /* RW */
-#define MSDC_PAD_CTL0_CLKRDSEL  (0xffUL << 24)   /* RW */
-
-/* MSDC_PAD_CTL1 mask */
-#define MSDC_PAD_CTL1_CMDDRVN   (0x7  << 0)     /* RW */
-#define MSDC_PAD_CTL1_CMDDRVP   (0x7  << 4)     /* RW */
-#define MSDC_PAD_CTL1_CMDSR     (0x1  << 8)     /* RW */
-#define MSDC_PAD_CTL1_CMDPD     (0x1  << 16)    /* RW */
-#define MSDC_PAD_CTL1_CMDPU     (0x1  << 17)    /* RW */
-#define MSDC_PAD_CTL1_CMDSMT    (0x1  << 18)    /* RW */
-#define MSDC_PAD_CTL1_CMDIES    (0x1  << 19)    /* RW */
-#define MSDC_PAD_CTL1_CMDTDSEL  (0xf  << 20)    /* RW */
-#define MSDC_PAD_CTL1_CMDRDSEL  (0xffUL << 24)   /* RW */
-
-/* MSDC_PAD_CTL2 mask */
-#define MSDC_PAD_CTL2_DATDRVN   (0x7  << 0)     /* RW */
-#define MSDC_PAD_CTL2_DATDRVP   (0x7  << 4)     /* RW */
-#define MSDC_PAD_CTL2_DATSR     (0x1  << 8)     /* RW */
-#define MSDC_PAD_CTL2_DATPD     (0x1  << 16)    /* RW */
-#define MSDC_PAD_CTL2_DATPU     (0x1  << 17)    /* RW */
-#define MSDC_PAD_CTL2_DATIES    (0x1  << 19)    /* RW */
-#define MSDC_PAD_CTL2_DATSMT    (0x1  << 18)    /* RW */
-#define MSDC_PAD_CTL2_DATTDSEL  (0xf  << 20)    /* RW */
-#define MSDC_PAD_CTL2_DATRDSEL  (0xffUL << 24)   /* RW */
-
-/* MSDC_PAD_TUNE mask */
-#define MSDC_PAD_TUNE_DATWRDLY  (0x1F << 0)     /* RW */
-#define MSDC_PAD_TUNE_DATRRDLY  (0x1F << 8)     /* RW */
-#define MSDC_PAD_TUNE_CMDRDLY   (0x1F << 16)    /* RW */
-#define MSDC_PAD_TUNE_CMDRRDLY  (0x1FUL << 22)  /* RW */
-#define MSDC_PAD_TUNE_CLKTXDLY  (0x1FUL << 27)  /* RW */
-
-/* MSDC_DAT_RDDLY0/1 mask */
-#define MSDC_DAT_RDDLY0_D0      (0x1F << 0)     /* RW */
-#define MSDC_DAT_RDDLY0_D1      (0x1F << 8)     /* RW */
-#define MSDC_DAT_RDDLY0_D2      (0x1F << 16)    /* RW */
-#define MSDC_DAT_RDDLY0_D3      (0x1F << 24)    /* RW */
-
-#define MSDC_DAT_RDDLY1_D4      (0x1F << 0)     /* RW */
-#define MSDC_DAT_RDDLY1_D5      (0x1F << 8)     /* RW */
-#define MSDC_DAT_RDDLY1_D6      (0x1F << 16)    /* RW */
-#define MSDC_DAT_RDDLY1_D7      (0x1F << 24)    /* RW */
-
-#define MSDC_CKGEN_MSDC_DLY_SEL   (0x1F << 10)
-#define MSDC_INT_DAT_LATCH_CK_SEL  (0x7 << 7)
-#define MSDC_CKGEN_MSDC_CK_SEL     (0x1 << 6)
-#define CARD_READY_FOR_DATA             (1 << 8)
-#define CARD_CURRENT_STATE(x)           ((x & 0x00001E00) >> 9)
-
-/*--------------------------------------------------------------------------*/
-/* Descriptor Structure                                                     */
-/*--------------------------------------------------------------------------*/
-struct gpd {
-	u32  hwo:1; /* could be changed by hw */
-	u32  bdp:1;
-	u32  rsv0:6;
-	u32  chksum:8;
-	u32  intr:1;
-	u32  rsv1:15;
-	void *next;
-	void *ptr;
-	u32  buflen:16;
-	u32  extlen:8;
-	u32  rsv2:8;
-	u32  arg;
-	u32  blknum;
-	u32  cmd;
-};
-
-struct bd {
-	u32  eol:1;
-	u32  rsv0:7;
-	u32  chksum:8;
-	u32  rsv1:1;
-	u32  blkpad:1;
-	u32  dwpad:1;
-	u32  rsv2:13;
-	void *next;
-	void *ptr;
-	u32  buflen:16;
-	u32  rsv3:16;
-};
-
-struct msdc_dma {
-	struct gpd *gpd;                  /* pointer to gpd array */
-	struct bd  *bd;                   /* pointer to bd array */
-	dma_addr_t gpd_addr;         /* the physical address of gpd array */
-	dma_addr_t bd_addr;          /* the physical address of bd array */
-};
-
-struct msdc_host {
-	struct msdc_hw              *hw;
-
-	struct mmc_host             *mmc;           /* mmc structure */
-	struct mmc_command          *cmd;
-	struct mmc_data             *data;
-	struct mmc_request          *mrq;
-	int                         cmd_rsp;
-
-	int                         error;
-	spinlock_t                  lock;           /* mutex */
-	struct semaphore            sem;
-
-	u32                         blksz;          /* host block size */
-	void __iomem                *base;           /* host base address */
-	int                         id;             /* host id */
-	int                         pwr_ref;        /* core power reference count */
-
-	u32                         xfer_size;      /* total transferred size */
-
-	struct msdc_dma             dma;            /* dma channel */
-	u32                         dma_xfer_size;  /* dma transfer size in bytes */
-
-	u32                         timeout_ns;     /* data timeout ns */
-	u32                         timeout_clks;   /* data timeout clks */
-
-	int                         irq;            /* host interrupt */
-
-	struct delayed_work		card_delaywork;
-
-	struct completion           cmd_done;
-	struct completion           xfer_done;
-	struct pm_message           pm_state;
-
-	u32                         mclk;           /* mmc subsystem clock */
-	u32                         hclk;           /* host clock speed */
-	u32                         sclk;           /* SD/MS clock speed */
-	u8                          core_clkon;     /* Host core clock on ? */
-	u8                          card_clkon;     /* Card clock on ? */
-	u8                          core_power;     /* core power */
-	u8                          power_mode;     /* host power mode */
-	u8                          card_inserted;  /* card inserted ? */
-	u8                          suspend;        /* host suspended ? */
-	u8                          app_cmd;        /* for app command */
-	u32                         app_cmd_arg;
-};
-
-static inline void sdr_set_bits(void __iomem *reg, u32 bs)
-{
-	u32 val = readl(reg);
-
-	val |= bs;
-	writel(val, reg);
-}
-
-static inline void sdr_clr_bits(void __iomem *reg, u32 bs)
-{
-	u32 val = readl(reg);
-
-	val &= ~bs;
-	writel(val, reg);
-}
-
-static inline void sdr_set_field(void __iomem *reg, u32 field, u32 val)
-{
-	unsigned int tv = readl(reg);
-
-	tv &= ~field;
-	tv |= ((val) << (ffs((unsigned int)field) - 1));
-	writel(tv, reg);
-}
-
-static inline void sdr_get_field(void __iomem *reg, u32 field, u32 *val)
-{
-	unsigned int tv = readl(reg);
-	*val = ((tv & field) >> (ffs((unsigned int)field) - 1));
-}
-
-#endif
diff --git a/drivers/staging/mt7621-mmc/sd.c b/drivers/staging/mt7621-mmc/sd.c
deleted file mode 100644
index 04d23cc7cd4a..000000000000
--- a/drivers/staging/mt7621-mmc/sd.c
+++ /dev/null
@@ -1,2392 +0,0 @@ 
-/* Copyright Statement:
- *
- * This software/firmware and related documentation ("MediaTek Software") are
- * protected under relevant copyright laws. The information contained herein
- * is confidential and proprietary to MediaTek Inc. and/or its licensors.
- * Without the prior written permission of MediaTek inc. and/or its licensors,
- * any reproduction, modification, use or disclosure of MediaTek Software,
- * and information contained herein, in whole or in part, shall be strictly prohibited.
- *
- * MediaTek Inc. (C) 2010. All rights reserved.
- *
- * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
- * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
- * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
- * AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
- * NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
- * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
- * SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
- * THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
- * THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
- * CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
- * SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
- * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
- * CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
- * AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
- * OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
- * MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
- *
- * The following software/firmware and/or related documentation ("MediaTek Software")
- * have been modified by MediaTek Inc. All revisions are subject to any receiver's
- * applicable license agreements with MediaTek Inc.
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/dma-mapping.h>
-#include <linux/spinlock.h>
-#include <linux/platform_device.h>
-
-#include <linux/mmc/host.h>
-#include <linux/mmc/mmc.h>
-#include <linux/mmc/sd.h>
-#include <linux/mmc/sdio.h>
-
-#include <asm/mach-ralink/ralink_regs.h>
-
-#include "board.h"
-#include "dbg.h"
-#include "mt6575_sd.h"
-
-#ifdef CONFIG_SOC_MT7621
-#define RALINK_SYSCTL_BASE		0xbe000000
-#else
-#define RALINK_SYSCTL_BASE		0xb0000000
-#endif
-
-#define DRV_NAME            "mtk-sd"
-
-#if defined(CONFIG_SOC_MT7620)
-#define HOST_MAX_MCLK       (48000000) /* +/- by chhung */
-#elif defined(CONFIG_SOC_MT7621)
-#define HOST_MAX_MCLK       (50000000) /* +/- by chhung */
-#endif
-#define HOST_MIN_MCLK       (260000)
-
-#define HOST_MAX_BLKSZ      (2048)
-
-#define MSDC_OCR_AVAIL      (MMC_VDD_28_29 | MMC_VDD_29_30 | MMC_VDD_30_31 | MMC_VDD_31_32 | MMC_VDD_32_33)
-
-#define GPIO_PULL_DOWN      (0)
-#define GPIO_PULL_UP        (1)
-
-#if 0 /* --- by chhung */
-#define MSDC_CLKSRC_REG     (0xf100000C)
-#define PDN_REG           (0xF1000010)
-#endif /* end of --- */
-
-#define DEFAULT_DEBOUNCE    (8)       /* 8 cycles */
-#define DEFAULT_DTOC        (40)      /* data timeout counter. 65536x40 sclk. */
-
-#define CMD_TIMEOUT         (HZ / 10)     /* 100ms */
-#define DAT_TIMEOUT         (HZ / 2 * 5)  /* 500ms x5 */
-
-#define MAX_DMA_CNT         (64 * 1024 - 512)   /* a single transaction for WIFI may be 50K*/
-
-#define MAX_GPD_NUM         (1 + 1)  /* one null gpd */
-#define MAX_BD_NUM          (1024)
-
-#define MAX_HW_SGMTS        (MAX_BD_NUM)
-#define MAX_SGMT_SZ         (MAX_DMA_CNT)
-#define MAX_REQ_SZ          (MAX_SGMT_SZ * 8)
-
-static int cd_active_low = 1;
-
-//=================================
-#define PERI_MSDC0_PDN      (15)
-//#define PERI_MSDC1_PDN    (16)
-//#define PERI_MSDC2_PDN    (17)
-//#define PERI_MSDC3_PDN    (18)
-
-#if 0 /* --- by chhung */
-/* gate means clock power down */
-static int g_clk_gate = 0;
-#define msdc_gate_clock(id) \
-	do {					       \
-		g_clk_gate &= ~(1 << ((id) + PERI_MSDC0_PDN));	\
-	} while (0)
-/* not like power down register. 1 means clock on. */
-#define msdc_ungate_clock(id) \
-	do {					    \
-		g_clk_gate |= 1 << ((id) + PERI_MSDC0_PDN);	\
-	} while (0)
-
-// do we need sync object or not
-void msdc_clk_status(int *status)
-{
-	*status = g_clk_gate;
-}
-#endif /* end of --- */
-
-/* +++ by chhung */
-struct msdc_hw msdc0_hw = {
-	.clk_src        = 0,
-	.flags          = MSDC_CD_PIN_EN | MSDC_REMOVABLE,
-//	.flags          = MSDC_WP_PIN_EN | MSDC_CD_PIN_EN | MSDC_REMOVABLE,
-};
-
-/* end of +++ */
-
-static int msdc_rsp[] = {
-	0,  /* RESP_NONE */
-	1,  /* RESP_R1 */
-	2,  /* RESP_R2 */
-	3,  /* RESP_R3 */
-	4,  /* RESP_R4 */
-	1,  /* RESP_R5 */
-	1,  /* RESP_R6 */
-	1,  /* RESP_R7 */
-	7,  /* RESP_R1b */
-};
-
-#define msdc_dma_on()        sdr_clr_bits(host->base + MSDC_CFG, MSDC_CFG_PIO)
-
-static void msdc_reset_hw(struct msdc_host *host)
-{
-	sdr_set_bits(host->base + MSDC_CFG, MSDC_CFG_RST);
-	while (readl(host->base + MSDC_CFG) & MSDC_CFG_RST)
-		cpu_relax();
-}
-
-#define msdc_clr_int() \
-	do {							\
-		volatile u32 val = readl(host->base + MSDC_INT);	\
-		writel(val, host->base + MSDC_INT);			\
-	} while (0)
-
-static void msdc_clr_fifo(struct msdc_host *host)
-{
-	sdr_set_bits(host->base + MSDC_FIFOCS, MSDC_FIFOCS_CLR);
-	while (readl(host->base + MSDC_FIFOCS) & MSDC_FIFOCS_CLR)
-		cpu_relax();
-}
-
-#define msdc_irq_save(val) \
-	do {					\
-		val = readl(host->base + MSDC_INTEN);	\
-		sdr_clr_bits(host->base + MSDC_INTEN, val);	\
-	} while (0)
-
-#define msdc_irq_restore(val) \
-	do {					\
-		sdr_set_bits(host->base + MSDC_INTEN, val);	\
-	} while (0)
-
-/* clock source for host: global */
-#if defined(CONFIG_SOC_MT7620)
-static u32 hclks[] = {48000000}; /* +/- by chhung */
-#elif defined(CONFIG_SOC_MT7621)
-static u32 hclks[] = {50000000}; /* +/- by chhung */
-#endif
-
-//============================================
-// the power for msdc host controller: global
-//    always keep the VMC on.
-//============================================
-#define msdc_vcore_on(host) \
-	do {								\
-		INIT_MSG("[+]VMC ref. count<%d>", ++host->pwr_ref);	\
-		(void)hwPowerOn(MT65XX_POWER_LDO_VMC, VOL_3300, "SD");	\
-	} while (0)
-#define msdc_vcore_off(host) \
-	do {								\
-		INIT_MSG("[-]VMC ref. count<%d>", --host->pwr_ref);	\
-		(void)hwPowerDown(MT65XX_POWER_LDO_VMC, "SD");		\
-	} while (0)
-
-//====================================
-// the vdd output for card: global
-//   always keep the VMCH on.
-//====================================
-#define msdc_vdd_on(host) \
-	do {								\
-		(void)hwPowerOn(MT65XX_POWER_LDO_VMCH, VOL_3300, "SD"); \
-	} while (0)
-#define msdc_vdd_off(host) \
-	do {							\
-		(void)hwPowerDown(MT65XX_POWER_LDO_VMCH, "SD"); \
-	} while (0)
-
-#define sdc_is_busy()          (readl(host->base + SDC_STS) & SDC_STS_SDCBUSY)
-#define sdc_is_cmd_busy()      (readl(host->base + SDC_STS) & SDC_STS_CMDBUSY)
-
-#define sdc_send_cmd(cmd, arg) \
-	do {					\
-		writel((arg), host->base + SDC_ARG);	\
-		writel((cmd), host->base + SDC_CMD);	\
-	} while (0)
-
-/* +++ by chhung */
-#ifndef __ASSEMBLY__
-#define PHYSADDR(a)             (((unsigned long)(a)) & 0x1fffffff)
-#else
-#define PHYSADDR(a)             ((a) & 0x1fffffff)
-#endif
-/* end of +++ */
-static unsigned int msdc_do_command(struct msdc_host   *host,
-				    struct mmc_command *cmd,
-				    int                 tune,
-				    unsigned long       timeout);
-
-static int msdc_tune_cmdrsp(struct msdc_host *host, struct mmc_command *cmd);
-
-#ifdef MT6575_SD_DEBUG
-static void msdc_dump_card_status(struct msdc_host *host, u32 status)
-{
-/* N_MSG is currently a no-op */
-#if 0
-	static char *state[] = {
-		"Idle",			/* 0 */
-		"Ready",		/* 1 */
-		"Ident",		/* 2 */
-		"Stby",			/* 3 */
-		"Tran",			/* 4 */
-		"Data",			/* 5 */
-		"Rcv",			/* 6 */
-		"Prg",			/* 7 */
-		"Dis",			/* 8 */
-		"Reserved",		/* 9 */
-		"Reserved",		/* 10 */
-		"Reserved",		/* 11 */
-		"Reserved",		/* 12 */
-		"Reserved",		/* 13 */
-		"Reserved",		/* 14 */
-		"I/O mode",		/* 15 */
-	};
-#endif
-	if (status & R1_OUT_OF_RANGE)
-		N_MSG(RSP, "[CARD_STATUS] Out of Range");
-	if (status & R1_ADDRESS_ERROR)
-		N_MSG(RSP, "[CARD_STATUS] Address Error");
-	if (status & R1_BLOCK_LEN_ERROR)
-		N_MSG(RSP, "[CARD_STATUS] Block Len Error");
-	if (status & R1_ERASE_SEQ_ERROR)
-		N_MSG(RSP, "[CARD_STATUS] Erase Seq Error");
-	if (status & R1_ERASE_PARAM)
-		N_MSG(RSP, "[CARD_STATUS] Erase Param");
-	if (status & R1_WP_VIOLATION)
-		N_MSG(RSP, "[CARD_STATUS] WP Violation");
-	if (status & R1_CARD_IS_LOCKED)
-		N_MSG(RSP, "[CARD_STATUS] Card is Locked");
-	if (status & R1_LOCK_UNLOCK_FAILED)
-		N_MSG(RSP, "[CARD_STATUS] Lock/Unlock Failed");
-	if (status & R1_COM_CRC_ERROR)
-		N_MSG(RSP, "[CARD_STATUS] Command CRC Error");
-	if (status & R1_ILLEGAL_COMMAND)
-		N_MSG(RSP, "[CARD_STATUS] Illegal Command");
-	if (status & R1_CARD_ECC_FAILED)
-		N_MSG(RSP, "[CARD_STATUS] Card ECC Failed");
-	if (status & R1_CC_ERROR)
-		N_MSG(RSP, "[CARD_STATUS] CC Error");
-	if (status & R1_ERROR)
-		N_MSG(RSP, "[CARD_STATUS] Error");
-	if (status & R1_UNDERRUN)
-		N_MSG(RSP, "[CARD_STATUS] Underrun");
-	if (status & R1_OVERRUN)
-		N_MSG(RSP, "[CARD_STATUS] Overrun");
-	if (status & R1_CID_CSD_OVERWRITE)
-		N_MSG(RSP, "[CARD_STATUS] CID/CSD Overwrite");
-	if (status & R1_WP_ERASE_SKIP)
-		N_MSG(RSP, "[CARD_STATUS] WP Eraser Skip");
-	if (status & R1_CARD_ECC_DISABLED)
-		N_MSG(RSP, "[CARD_STATUS] Card ECC Disabled");
-	if (status & R1_ERASE_RESET)
-		N_MSG(RSP, "[CARD_STATUS] Erase Reset");
-	if (status & R1_READY_FOR_DATA)
-		N_MSG(RSP, "[CARD_STATUS] Ready for Data");
-	if (status & R1_SWITCH_ERROR)
-		N_MSG(RSP, "[CARD_STATUS] Switch error");
-	if (status & R1_APP_CMD)
-		N_MSG(RSP, "[CARD_STATUS] App Command");
-
-	N_MSG(RSP, "[CARD_STATUS] '%s' State", state[R1_CURRENT_STATE(status)]);
-}
-
-static void msdc_dump_ocr_reg(struct msdc_host *host, u32 resp)
-{
-	if (resp & (1 << 7))
-		N_MSG(RSP, "[OCR] Low Voltage Range");
-	if (resp & (1 << 15))
-		N_MSG(RSP, "[OCR] 2.7-2.8 volt");
-	if (resp & (1 << 16))
-		N_MSG(RSP, "[OCR] 2.8-2.9 volt");
-	if (resp & (1 << 17))
-		N_MSG(RSP, "[OCR] 2.9-3.0 volt");
-	if (resp & (1 << 18))
-		N_MSG(RSP, "[OCR] 3.0-3.1 volt");
-	if (resp & (1 << 19))
-		N_MSG(RSP, "[OCR] 3.1-3.2 volt");
-	if (resp & (1 << 20))
-		N_MSG(RSP, "[OCR] 3.2-3.3 volt");
-	if (resp & (1 << 21))
-		N_MSG(RSP, "[OCR] 3.3-3.4 volt");
-	if (resp & (1 << 22))
-		N_MSG(RSP, "[OCR] 3.4-3.5 volt");
-	if (resp & (1 << 23))
-		N_MSG(RSP, "[OCR] 3.5-3.6 volt");
-	if (resp & (1 << 24))
-		N_MSG(RSP, "[OCR] Switching to 1.8V Accepted (S18A)");
-	if (resp & (1 << 30))
-		N_MSG(RSP, "[OCR] Card Capacity Status (CCS)");
-	if (resp & (1 << 31))
-		N_MSG(RSP, "[OCR] Card Power Up Status (Idle)");
-	else
-		N_MSG(RSP, "[OCR] Card Power Up Status (Busy)");
-}
-
-static void msdc_dump_rca_resp(struct msdc_host *host, u32 resp)
-{
-	u32 status = (((resp >> 15) & 0x1) << 23) |
-		     (((resp >> 14) & 0x1) << 22) |
-		     (((resp >> 13) & 0x1) << 19) |
-		     (resp & 0x1fff);
-
-	N_MSG(RSP, "[RCA] 0x%.4x", resp >> 16);
-	msdc_dump_card_status(host, status);
-}
-
-static void msdc_dump_io_resp(struct msdc_host *host, u32 resp)
-{
-	u32 flags = (resp >> 8) & 0xFF;
-#if 0
-	char *state[] = {"DIS", "CMD", "TRN", "RFU"};
-#endif
-	if (flags & (1 << 7))
-		N_MSG(RSP, "[IO] COM_CRC_ERR");
-	if (flags & (1 << 6))
-		N_MSG(RSP, "[IO] Illegal command");
-	if (flags & (1 << 3))
-		N_MSG(RSP, "[IO] Error");
-	if (flags & (1 << 2))
-		N_MSG(RSP, "[IO] RFU");
-	if (flags & (1 << 1))
-		N_MSG(RSP, "[IO] Function number error");
-	if (flags & (1 << 0))
-		N_MSG(RSP, "[IO] Out of range");
-
-	N_MSG(RSP, "[IO] State: %s, Data:0x%x", state[(resp >> 12) & 0x3], resp & 0xFF);
-}
-#endif
-
-static void msdc_set_timeout(struct msdc_host *host, u32 ns, u32 clks)
-{
-	u32 timeout, clk_ns;
-
-	host->timeout_ns   = ns;
-	host->timeout_clks = clks;
-
-	clk_ns  = 1000000000UL / host->sclk;
-	timeout = ns / clk_ns + clks;
-	timeout = timeout >> 16; /* in 65536 sclk cycle unit */
-	timeout = timeout > 1 ? timeout - 1 : 0;
-	timeout = timeout > 255 ? 255 : timeout;
-
-	sdr_set_field(host->base + SDC_CFG, SDC_CFG_DTOC, timeout);
-
-	N_MSG(OPS, "Set read data timeout: %dns %dclks -> %d x 65536 cycles",
-	      ns, clks, timeout + 1);
-}
-
-static void msdc_tasklet_card(struct work_struct *work)
-{
-	struct msdc_host *host = (struct msdc_host *)container_of(work,
-				struct msdc_host, card_delaywork.work);
-	u32 inserted;
-	u32 status = 0;
-    //u32 change = 0;
-
-	spin_lock(&host->lock);
-
-	status = readl(host->base + MSDC_PS);
-	if (cd_active_low)
-		inserted = (status & MSDC_PS_CDSTS) ? 0 : 1;
-	else
-		inserted = (status & MSDC_PS_CDSTS) ? 1 : 0;
-
-#if 0
-	change = host->card_inserted ^ inserted;
-	host->card_inserted = inserted;
-
-	if (change && !host->suspend) {
-		if (inserted)
-			host->mmc->f_max = HOST_MAX_MCLK;  // work around
-		mmc_detect_change(host->mmc, msecs_to_jiffies(20));
-	}
-#else  /* Make sure: handle the last interrupt */
-	host->card_inserted = inserted;
-
-	if (!host->suspend) {
-		host->mmc->f_max = HOST_MAX_MCLK;
-		mmc_detect_change(host->mmc, msecs_to_jiffies(20));
-	}
-
-	IRQ_MSG("card found<%s>", inserted ? "inserted" : "removed");
-#endif
-
-	spin_unlock(&host->lock);
-}
-
-#if 0 /* --- by chhung */
-/* For E2 only */
-static u8 clk_src_bit[4] = {
-	0, 3, 5, 7
-};
-
-static void msdc_select_clksrc(struct msdc_host *host, unsigned char clksrc)
-{
-	u32 val;
-
-	BUG_ON(clksrc > 3);
-	INIT_MSG("set clock source to <%d>", clksrc);
-
-	val = readl(host->base + MSDC_CLKSRC_REG);
-	if (readl(host->base + MSDC_ECO_VER) >= 4) {
-		val &= ~(0x3  << clk_src_bit[host->id]);
-		val |= clksrc << clk_src_bit[host->id];
-	} else {
-		val &= ~0x3; val |= clksrc;
-	}
-	writel(val, host->base + MSDC_CLKSRC_REG);
-
-	host->hclk = hclks[clksrc];
-	host->hw->clk_src = clksrc;
-}
-#endif /* end of --- */
-
-static void msdc_set_mclk(struct msdc_host *host, int ddr, unsigned int hz)
-{
-	//struct msdc_hw *hw = host->hw;
-	u32 mode;
-	u32 flags;
-	u32 div;
-	u32 sclk;
-	u32 hclk = host->hclk;
-	//u8  clksrc = hw->clk_src;
-
-	if (!hz) { // set mmc system clock to 0 ?
-		//ERR_MSG("set mclk to 0!!!");
-		msdc_reset_hw(host);
-		return;
-	}
-
-	msdc_irq_save(flags);
-
-	if (ddr) {
-		mode = 0x2; /* ddr mode and use divisor */
-		if (hz >= (hclk >> 2)) {
-			div  = 1;         /* mean div = 1/4 */
-			sclk = hclk >> 2; /* sclk = clk / 4 */
-		} else {
-			div  = (hclk + ((hz << 2) - 1)) / (hz << 2);
-			sclk = (hclk >> 2) / div;
-		}
-	} else if (hz >= hclk) { /* bug fix */
-		mode = 0x1; /* no divisor and divisor is ignored */
-		div  = 0;
-		sclk = hclk;
-	} else {
-		mode = 0x0; /* use divisor */
-		if (hz >= (hclk >> 1)) {
-			div  = 0;         /* mean div = 1/2 */
-			sclk = hclk >> 1; /* sclk = clk / 2 */
-		} else {
-			div  = (hclk + ((hz << 2) - 1)) / (hz << 2);
-			sclk = (hclk >> 2) / div;
-		}
-	}
-
-	/* set clock mode and divisor */
-	sdr_set_field(host->base + MSDC_CFG, MSDC_CFG_CKMOD, mode);
-	sdr_set_field(host->base + MSDC_CFG, MSDC_CFG_CKDIV, div);
-
-	/* wait clock stable */
-	while (!(readl(host->base + MSDC_CFG) & MSDC_CFG_CKSTB))
-		cpu_relax();
-
-	host->sclk = sclk;
-	host->mclk = hz;
-	msdc_set_timeout(host, host->timeout_ns, host->timeout_clks); // need?
-
-	INIT_MSG("================");
-	INIT_MSG("!!! Set<%dKHz> Source<%dKHz> -> sclk<%dKHz>", hz / 1000, hclk / 1000, sclk / 1000);
-	INIT_MSG("================");
-
-	msdc_irq_restore(flags);
-}
-
-/* Fix me. when need to abort */
-static void msdc_abort_data(struct msdc_host *host)
-{
-	struct mmc_command *stop = host->mrq->stop;
-
-	ERR_MSG("Need to Abort.");
-
-	msdc_reset_hw(host);
-	msdc_clr_fifo(host);
-	msdc_clr_int();
-
-	// need to check FIFO count 0 ?
-
-	if (stop) {  /* try to stop, but may not success */
-		ERR_MSG("stop when abort CMD<%d>", stop->opcode);
-		(void)msdc_do_command(host, stop, 0, CMD_TIMEOUT);
-	}
-
-	//if (host->mclk >= 25000000) {
-	//      msdc_set_mclk(host, 0, host->mclk >> 1);
-	//}
-}
-
-#if 0 /* --- by chhung */
-static void msdc_pin_config(struct msdc_host *host, int mode)
-{
-	struct msdc_hw *hw = host->hw;
-	int pull = (mode == MSDC_PIN_PULL_UP) ? GPIO_PULL_UP : GPIO_PULL_DOWN;
-
-	/* Config WP pin */
-	if (hw->flags & MSDC_WP_PIN_EN) {
-		if (hw->config_gpio_pin) /* NULL */
-			hw->config_gpio_pin(MSDC_WP_PIN, pull);
-	}
-
-	switch (mode) {
-	case MSDC_PIN_PULL_UP:
-		//sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPU, 1); /* Check & FIXME */
-		//sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPD, 0); /* Check & FIXME */
-		sdr_set_field(host->base + MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPU, 1);
-		sdr_set_field(host->base + MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPD, 0);
-		sdr_set_field(host->base + MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPU, 1);
-		sdr_set_field(host->base + MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPD, 0);
-		break;
-	case MSDC_PIN_PULL_DOWN:
-		//sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPU, 0); /* Check & FIXME */
-		//sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPD, 1); /* Check & FIXME */
-		sdr_set_field(host->base + MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPU, 0);
-		sdr_set_field(host->base + MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPD, 1);
-		sdr_set_field(host->base + MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPU, 0);
-		sdr_set_field(host->base + MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPD, 1);
-		break;
-	case MSDC_PIN_PULL_NONE:
-	default:
-		//sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPU, 0); /* Check & FIXME */
-		//sdr_set_field(MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKPD, 0); /* Check & FIXME */
-		sdr_set_field(host->base + MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPU, 0);
-		sdr_set_field(host->base + MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDPD, 0);
-		sdr_set_field(host->base + MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPU, 0);
-		sdr_set_field(host->base + MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATPD, 0);
-		break;
-	}
-
-	N_MSG(CFG, "Pins mode(%d), down(%d), up(%d)",
-	      mode, MSDC_PIN_PULL_DOWN, MSDC_PIN_PULL_UP);
-}
-
-void msdc_pin_reset(struct msdc_host *host, int mode)
-{
-	struct msdc_hw *hw = (struct msdc_hw *)host->hw;
-	int pull = (mode == MSDC_PIN_PULL_UP) ? GPIO_PULL_UP : GPIO_PULL_DOWN;
-
-	/* Config reset pin */
-	if (hw->flags & MSDC_RST_PIN_EN) {
-		if (hw->config_gpio_pin) /* NULL */
-			hw->config_gpio_pin(MSDC_RST_PIN, pull);
-
-		if (mode == MSDC_PIN_PULL_UP)
-			sdr_clr_bits(host->base + EMMC_IOCON, EMMC_IOCON_BOOTRST);
-		else
-			sdr_set_bits(host->base + EMMC_IOCON, EMMC_IOCON_BOOTRST);
-	}
-}
-
-static void msdc_core_power(struct msdc_host *host, int on)
-{
-	N_MSG(CFG, "Turn %s %s power (copower: %d -> %d)",
-		on ? "on" : "off", "core", host->core_power, on);
-
-	if (on && host->core_power == 0) {
-		msdc_vcore_on(host);
-		host->core_power = 1;
-		msleep(1);
-	} else if (!on && host->core_power == 1) {
-		msdc_vcore_off(host);
-		host->core_power = 0;
-		msleep(1);
-	}
-}
-
-static void msdc_host_power(struct msdc_host *host, int on)
-{
-	N_MSG(CFG, "Turn %s %s power ", on ? "on" : "off", "host");
-
-	if (on) {
-		//msdc_core_power(host, 1); // need do card detection.
-		msdc_pin_reset(host, MSDC_PIN_PULL_UP);
-	} else {
-		msdc_pin_reset(host, MSDC_PIN_PULL_DOWN);
-		//msdc_core_power(host, 0);
-	}
-}
-
-static void msdc_card_power(struct msdc_host *host, int on)
-{
-	N_MSG(CFG, "Turn %s %s power ", on ? "on" : "off", "card");
-
-	if (on) {
-		msdc_pin_config(host, MSDC_PIN_PULL_UP);
-		//msdc_vdd_on(host);  // need todo card detection.
-		msleep(1);
-	} else {
-		//msdc_vdd_off(host);
-		msdc_pin_config(host, MSDC_PIN_PULL_DOWN);
-		msleep(1);
-	}
-}
-
-static void msdc_set_power_mode(struct msdc_host *host, u8 mode)
-{
-	N_MSG(CFG, "Set power mode(%d)", mode);
-
-	if (host->power_mode == MMC_POWER_OFF && mode != MMC_POWER_OFF) {
-		msdc_host_power(host, 1);
-		msdc_card_power(host, 1);
-	} else if (host->power_mode != MMC_POWER_OFF && mode == MMC_POWER_OFF) {
-		msdc_card_power(host, 0);
-		msdc_host_power(host, 0);
-	}
-	host->power_mode = mode;
-}
-#endif /* end of --- */
-
-#ifdef CONFIG_PM
-/*
-   register as callback function of WIFI(combo_sdio_register_pm) .
-   can called by msdc_drv_suspend/resume too.
-*/
-static void msdc_pm(pm_message_t state, void *data)
-{
-	struct msdc_host *host = (struct msdc_host *)data;
-	int evt = state.event;
-
-	if (evt == PM_EVENT_USER_RESUME || evt == PM_EVENT_USER_SUSPEND) {
-		INIT_MSG("USR_%s: suspend<%d> power<%d>",
-			evt == PM_EVENT_USER_RESUME ? "EVENT_USER_RESUME" : "EVENT_USER_SUSPEND",
-			host->suspend, host->power_mode);
-	}
-
-	if (evt == PM_EVENT_SUSPEND || evt == PM_EVENT_USER_SUSPEND) {
-		if (host->suspend) /* already suspend */  /* default 0*/
-			return;
-
-		/* for memory card. already power off by mmc */
-		if (evt == PM_EVENT_SUSPEND && host->power_mode == MMC_POWER_OFF)
-			return;
-
-		host->suspend = 1;
-		host->pm_state = state;  /* default PMSG_RESUME */
-
-	} else if (evt == PM_EVENT_RESUME || evt == PM_EVENT_USER_RESUME) {
-		if (!host->suspend) {
-			//ERR_MSG("warning: already resume");
-			return;
-		}
-
-		/* No PM resume when USR suspend */
-		if (evt == PM_EVENT_RESUME && host->pm_state.event == PM_EVENT_USER_SUSPEND) {
-			ERR_MSG("PM Resume when in USR Suspend");		/* won't happen. */
-			return;
-		}
-
-		host->suspend = 0;
-		host->pm_state = state;
-
-	}
-}
-#endif
-
-static inline u32 msdc_cmd_find_resp(struct mmc_command *cmd)
-{
-	u32 opcode = cmd->opcode;
-	u32 resp;
-
-	if (opcode == MMC_SET_RELATIVE_ADDR) {
-		resp = (mmc_cmd_type(cmd) == MMC_CMD_BCR) ? RESP_R6 : RESP_R1;
-	} else if (opcode == MMC_FAST_IO) {
-		resp = RESP_R4;
-	} else if (opcode == MMC_GO_IRQ_STATE) {
-		resp = RESP_R5;
-	} else if (opcode == MMC_SELECT_CARD) {
-		resp = (cmd->arg != 0) ? RESP_R1B : RESP_NONE;
-	} else if (opcode == SD_IO_RW_DIRECT || opcode == SD_IO_RW_EXTENDED) {
-		resp = RESP_R1; /* SDIO workaround. */
-	} else if (opcode == SD_SEND_IF_COND && (mmc_cmd_type(cmd) == MMC_CMD_BCR)) {
-		resp = RESP_R1;
-	} else {
-		switch (mmc_resp_type(cmd)) {
-		case MMC_RSP_R1:
-			resp = RESP_R1;
-			break;
-		case MMC_RSP_R1B:
-			resp = RESP_R1B;
-			break;
-		case MMC_RSP_R2:
-			resp = RESP_R2;
-			break;
-		case MMC_RSP_R3:
-			resp = RESP_R3;
-			break;
-		case MMC_RSP_NONE:
-		default:
-			resp = RESP_NONE;
-			break;
-		}
-	}
-
-	return resp;
-}
-
-/*--------------------------------------------------------------------------*/
-/* mmc_host_ops members                                                      */
-/*--------------------------------------------------------------------------*/
-static unsigned int msdc_command_start(struct msdc_host   *host,
-				       struct mmc_command *cmd,
-				       unsigned long       timeout)
-{
-	u32 opcode = cmd->opcode;
-	u32 rawcmd;
-	u32 wints = MSDC_INT_CMDRDY  | MSDC_INT_RSPCRCERR  | MSDC_INT_CMDTMO  |
-		    MSDC_INT_ACMDRDY | MSDC_INT_ACMDCRCERR | MSDC_INT_ACMDTMO |
-		    MSDC_INT_ACMD19_DONE;
-
-	u32 resp;
-	unsigned long tmo;
-
-	/* Protocol layer does not provide response type, but our hardware needs
-	 * to know exact type, not just size!
-	 */
-	resp = msdc_cmd_find_resp(cmd);
-
-	cmd->error = 0;
-	/* rawcmd :
-	 * vol_swt << 30 | auto_cmd << 28 | blklen << 16 | go_irq << 15 |
-	 * stop << 14 | rw << 13 | dtype << 11 | rsptyp << 7 | brk << 6 | opcode
-	 */
-	rawcmd = opcode | msdc_rsp[resp] << 7 | host->blksz << 16;
-
-	if (opcode == MMC_READ_MULTIPLE_BLOCK) {
-		rawcmd |= (2 << 11);
-	} else if (opcode == MMC_READ_SINGLE_BLOCK) {
-		rawcmd |= (1 << 11);
-	} else if (opcode == MMC_WRITE_MULTIPLE_BLOCK) {
-		rawcmd |= ((2 << 11) | (1 << 13));
-	} else if (opcode == MMC_WRITE_BLOCK) {
-		rawcmd |= ((1 << 11) | (1 << 13));
-	} else if (opcode == SD_IO_RW_EXTENDED) {
-		if (cmd->data->flags & MMC_DATA_WRITE)
-			rawcmd |= (1 << 13);
-		if (cmd->data->blocks > 1)
-			rawcmd |= (2 << 11);
-		else
-			rawcmd |= (1 << 11);
-	} else if (opcode == SD_IO_RW_DIRECT && cmd->flags == (unsigned int)-1) {
-		rawcmd |= (1 << 14);
-	} else if ((opcode == SD_APP_SEND_SCR) ||
-		(opcode == SD_APP_SEND_NUM_WR_BLKS) ||
-		(opcode == SD_SWITCH && (mmc_cmd_type(cmd) == MMC_CMD_ADTC)) ||
-		(opcode == SD_APP_SD_STATUS && (mmc_cmd_type(cmd) == MMC_CMD_ADTC)) ||
-		(opcode == MMC_SEND_EXT_CSD && (mmc_cmd_type(cmd) == MMC_CMD_ADTC))) {
-		rawcmd |= (1 << 11);
-	} else if (opcode == MMC_STOP_TRANSMISSION) {
-		rawcmd |= (1 << 14);
-		rawcmd &= ~(0x0FFF << 16);
-	}
-
-	N_MSG(CMD, "CMD<%d><0x%.8x> Arg<0x%.8x>", opcode, rawcmd, cmd->arg);
-
-	tmo = jiffies + timeout;
-
-	if (opcode == MMC_SEND_STATUS) {
-		for (;;) {
-			if (!sdc_is_cmd_busy())
-				break;
-
-			if (time_after(jiffies, tmo)) {
-				ERR_MSG("XXX cmd_busy timeout: before CMD<%d>", opcode);
-				cmd->error = -ETIMEDOUT;
-				msdc_reset_hw(host);
-				goto end;
-			}
-		}
-	} else {
-		for (;;) {
-			if (!sdc_is_busy())
-				break;
-			if (time_after(jiffies, tmo)) {
-				ERR_MSG("XXX sdc_busy timeout: before CMD<%d>", opcode);
-				cmd->error = -ETIMEDOUT;
-				msdc_reset_hw(host);
-				goto end;
-			}
-		}
-	}
-
-	//BUG_ON(in_interrupt());
-	host->cmd     = cmd;
-	host->cmd_rsp = resp;
-
-	init_completion(&host->cmd_done);
-
-	sdr_set_bits(host->base + MSDC_INTEN, wints);
-	sdc_send_cmd(rawcmd, cmd->arg);
-
-end:
-	return cmd->error;
-}
-
-static unsigned int msdc_command_resp(struct msdc_host   *host,
-				      struct mmc_command *cmd,
-				      int                 tune,
-				      unsigned long       timeout)
-	__must_hold(&host->lock)
-{
-	u32 opcode = cmd->opcode;
-	//u32 rawcmd;
-	u32 wints = MSDC_INT_CMDRDY  | MSDC_INT_RSPCRCERR  | MSDC_INT_CMDTMO  |
-		    MSDC_INT_ACMDRDY | MSDC_INT_ACMDCRCERR | MSDC_INT_ACMDTMO |
-		    MSDC_INT_ACMD19_DONE;
-
-	BUG_ON(in_interrupt());
-	//init_completion(&host->cmd_done);
-	//sdr_set_bits(host->base + MSDC_INTEN, wints);
-
-	spin_unlock(&host->lock);
-	if (!wait_for_completion_timeout(&host->cmd_done, 10 * timeout)) {
-		ERR_MSG("XXX CMD<%d> wait_for_completion timeout ARG<0x%.8x>", opcode, cmd->arg);
-		cmd->error = -ETIMEDOUT;
-		msdc_reset_hw(host);
-	}
-	spin_lock(&host->lock);
-
-	sdr_clr_bits(host->base + MSDC_INTEN, wints);
-	host->cmd = NULL;
-
-//end:
-#ifdef MT6575_SD_DEBUG
-	switch (resp) {
-	case RESP_NONE:
-		N_MSG(RSP, "CMD_RSP(%d): %d RSP(%d)", opcode, cmd->error, resp);
-		break;
-	case RESP_R2:
-		N_MSG(RSP, "CMD_RSP(%d): %d RSP(%d)= %.8x %.8x %.8x %.8x",
-			opcode, cmd->error, resp, cmd->resp[0], cmd->resp[1],
-			cmd->resp[2], cmd->resp[3]);
-		break;
-	default: /* Response types 1, 3, 4, 5, 6, 7(1b) */
-		N_MSG(RSP, "CMD_RSP(%d): %d RSP(%d)= 0x%.8x",
-			opcode, cmd->error, resp, cmd->resp[0]);
-		if (cmd->error == 0) {
-			switch (resp) {
-			case RESP_R1:
-			case RESP_R1B:
-				msdc_dump_card_status(host, cmd->resp[0]);
-				break;
-			case RESP_R3:
-				msdc_dump_ocr_reg(host, cmd->resp[0]);
-				break;
-			case RESP_R5:
-				msdc_dump_io_resp(host, cmd->resp[0]);
-				break;
-			case RESP_R6:
-				msdc_dump_rca_resp(host, cmd->resp[0]);
-				break;
-			}
-		}
-		break;
-	}
-#endif
-
-	/* do we need to save card's RCA when SD_SEND_RELATIVE_ADDR */
-
-	if (!tune)
-		return cmd->error;
-
-	/* memory card CRC */
-	if (host->hw->flags & MSDC_REMOVABLE && cmd->error == -EIO) {
-		/* check if has data phase */
-		if (readl(host->base + SDC_CMD) & 0x1800) {
-			msdc_abort_data(host);
-		} else {
-			/* do basic: reset*/
-			msdc_reset_hw(host);
-			msdc_clr_fifo(host);
-			msdc_clr_int();
-		}
-		cmd->error = msdc_tune_cmdrsp(host, cmd);
-	}
-
-	//  check DAT0
-	/* if (resp == RESP_R1B) {
-	   while ((readl(host->base + MSDC_PS) & 0x10000) != 0x10000);
-	   } */
-	/* CMD12 Error Handle */
-
-	return cmd->error;
-}
-
-static unsigned int msdc_do_command(struct msdc_host   *host,
-				    struct mmc_command *cmd,
-				    int                 tune,
-				    unsigned long       timeout)
-{
-	if (msdc_command_start(host, cmd, timeout))
-		goto end;
-
-	if (msdc_command_resp(host, cmd, tune, timeout))
-		goto end;
-
-end:
-
-	N_MSG(CMD, "        return<%d> resp<0x%.8x>", cmd->error, cmd->resp[0]);
-	return cmd->error;
-}
-
-#if 0 /* --- by chhung */
-// DMA resume / start / stop
-static void msdc_dma_resume(struct msdc_host *host)
-{
-	sdr_set_field(host->base + MSDC_DMA_CTRL, MSDC_DMA_CTRL_RESUME, 1);
-
-	N_MSG(DMA, "DMA resume");
-}
-#endif /* end of --- */
-
-static void msdc_dma_start(struct msdc_host *host)
-{
-	u32 wints = MSDC_INTEN_XFER_COMPL | MSDC_INTEN_DATTMO | MSDC_INTEN_DATCRCERR;
-
-	sdr_set_bits(host->base + MSDC_INTEN, wints);
-	//dsb(); /* --- by chhung */
-	sdr_set_field(host->base + MSDC_DMA_CTRL, MSDC_DMA_CTRL_START, 1);
-
-	N_MSG(DMA, "DMA start");
-}
-
-static void msdc_dma_stop(struct msdc_host *host)
-{
-	//u32 retries=500;
-	u32 wints = MSDC_INTEN_XFER_COMPL | MSDC_INTEN_DATTMO | MSDC_INTEN_DATCRCERR;
-
-	N_MSG(DMA, "DMA status: 0x%.8x", readl(host->base + MSDC_DMA_CFG));
-	//while (readl(host->base + MSDC_DMA_CFG) & MSDC_DMA_CFG_STS);
-
-	sdr_set_field(host->base + MSDC_DMA_CTRL, MSDC_DMA_CTRL_STOP, 1);
-	while (readl(host->base + MSDC_DMA_CFG) & MSDC_DMA_CFG_STS)
-		;
-
-	//dsb(); /* --- by chhung */
-	sdr_clr_bits(host->base + MSDC_INTEN, wints); /* Not just xfer_comp */
-
-	N_MSG(DMA, "DMA stop");
-}
-
-/* calc checksum */
-static u8 msdc_dma_calcs(u8 *buf, u32 len)
-{
-	u32 i, sum = 0;
-
-	for (i = 0; i < len; i++)
-		sum += buf[i];
-	return 0xFF - (u8)sum;
-}
-
-static void msdc_dma_setup(struct msdc_host *host, struct msdc_dma *dma,
-			   struct scatterlist *sg_cmd, unsigned int sglen)
-{
-	struct scatterlist *sg;
-	struct gpd *gpd;
-	struct bd *bd;
-	u32 j;
-
-	BUG_ON(sglen > MAX_BD_NUM); /* not support currently */
-
-	N_MSG(DMA, "DMA sglen<%d> xfersz<%d>", sglen, host->xfer_size);
-
-	gpd = dma->gpd;
-	bd  = dma->bd;
-
-	/* modify gpd*/
-	//gpd->intr = 0;
-	gpd->hwo = 1;  /* hw will clear it */
-	gpd->bdp = 1;
-	gpd->chksum = 0;  /* need to clear first. */
-	gpd->chksum = msdc_dma_calcs((u8 *)gpd, 16);
-
-	/* modify bd*/
-	for_each_sg(sg_cmd, sg, sglen, j) {
-		bd[j].blkpad = 0;
-		bd[j].dwpad = 0;
-		bd[j].ptr = (void *)sg_dma_address(sg);
-		bd[j].buflen = sg_dma_len(sg);
-
-		if (j == sglen - 1)
-			bd[j].eol = 1;	/* the last bd */
-		else
-			bd[j].eol = 0;
-
-		bd[j].chksum = 0; /* checksume need to clear first */
-		bd[j].chksum = msdc_dma_calcs((u8 *)(&bd[j]), 16);
-	}
-
-	sdr_set_field(host->base + MSDC_DMA_CFG, MSDC_DMA_CFG_DECSEN, 1);
-	sdr_set_field(host->base + MSDC_DMA_CTRL, MSDC_DMA_CTRL_BRUSTSZ,
-		      MSDC_BRUST_64B);
-	sdr_set_field(host->base + MSDC_DMA_CTRL, MSDC_DMA_CTRL_MODE, 1);
-
-	writel(PHYSADDR((u32)dma->gpd_addr), host->base + MSDC_DMA_SA);
-
-	N_MSG(DMA, "DMA_CTRL = 0x%x", readl(host->base + MSDC_DMA_CTRL));
-	N_MSG(DMA, "DMA_CFG  = 0x%x", readl(host->base + MSDC_DMA_CFG));
-	N_MSG(DMA, "DMA_SA   = 0x%x", readl(host->base + MSDC_DMA_SA));
-}
-
-static int msdc_do_request(struct mmc_host *mmc, struct mmc_request *mrq)
-	__must_hold(&host->lock)
-{
-	struct msdc_host *host = mmc_priv(mmc);
-	struct mmc_command *cmd;
-	struct mmc_data *data;
-	//u32 intsts = 0;
-	int read = 1, send_type = 0;
-
-#define SND_DAT 0
-#define SND_CMD 1
-
-	BUG_ON(mmc == NULL);
-	BUG_ON(mrq == NULL);
-
-	host->error = 0;
-
-	cmd  = mrq->cmd;
-	data = mrq->cmd->data;
-
-#if 0 /* --- by chhung */
-	//if(host->id ==1){
-	N_MSG(OPS, "enable clock!");
-	msdc_ungate_clock(host->id);
-	//}
-#endif /* end of --- */
-
-	if (!data) {
-		send_type = SND_CMD;
-		if (msdc_do_command(host, cmd, 1, CMD_TIMEOUT) != 0)
-			goto done;
-	} else {
-		BUG_ON(data->blksz > HOST_MAX_BLKSZ);
-		send_type = SND_DAT;
-
-		data->error = 0;
-		read = data->flags & MMC_DATA_READ ? 1 : 0;
-		host->data = data;
-		host->xfer_size = data->blocks * data->blksz;
-		host->blksz = data->blksz;
-
-		if (read) {
-			if ((host->timeout_ns != data->timeout_ns) ||
-				(host->timeout_clks != data->timeout_clks)) {
-				msdc_set_timeout(host, data->timeout_ns, data->timeout_clks);
-			}
-		}
-
-		writel(data->blocks, host->base + SDC_BLK_NUM);
-		//msdc_clr_fifo(host);  /* no need */
-
-		msdc_dma_on();  /* enable DMA mode first!! */
-		init_completion(&host->xfer_done);
-
-		/* start the command first*/
-		if (msdc_command_start(host, cmd, CMD_TIMEOUT) != 0)
-			goto done;
-
-		data->sg_count = dma_map_sg(mmc_dev(mmc), data->sg,
-					    data->sg_len,
-					    mmc_get_dma_dir(data));
-		msdc_dma_setup(host, &host->dma, data->sg,
-			       data->sg_count);
-
-		/* then wait command done */
-		if (msdc_command_resp(host, cmd, 1, CMD_TIMEOUT) != 0)
-			goto done;
-
-		/* for read, the data coming too fast, then CRC error
-		   start DMA no business with CRC. */
-		//init_completion(&host->xfer_done);
-		msdc_dma_start(host);
-
-		spin_unlock(&host->lock);
-		if (!wait_for_completion_timeout(&host->xfer_done, DAT_TIMEOUT)) {
-			ERR_MSG("XXX CMD<%d> wait xfer_done<%d> timeout!!", cmd->opcode, data->blocks * data->blksz);
-			ERR_MSG("    DMA_SA   = 0x%x",
-				readl(host->base + MSDC_DMA_SA));
-			ERR_MSG("    DMA_CA   = 0x%x",
-				readl(host->base + MSDC_DMA_CA));
-			ERR_MSG("    DMA_CTRL = 0x%x",
-				readl(host->base + MSDC_DMA_CTRL));
-			ERR_MSG("    DMA_CFG  = 0x%x",
-				readl(host->base + MSDC_DMA_CFG));
-			data->error = -ETIMEDOUT;
-
-			msdc_reset_hw(host);
-			msdc_clr_fifo(host);
-			msdc_clr_int();
-		}
-		spin_lock(&host->lock);
-		msdc_dma_stop(host);
-
-		/* Last: stop transfer */
-		if (data->stop) {
-			if (msdc_do_command(host, data->stop, 0, CMD_TIMEOUT) != 0)
-				goto done;
-		}
-	}
-
-done:
-	if (data != NULL) {
-		host->data = NULL;
-		dma_unmap_sg(mmc_dev(mmc), data->sg, data->sg_len,
-			     mmc_get_dma_dir(data));
-		host->blksz = 0;
-
-#if 0 // don't stop twice!
-		if (host->hw->flags & MSDC_REMOVABLE && data->error) {
-			msdc_abort_data(host);
-			/* reset in IRQ, stop command has issued. -> No need */
-		}
-#endif
-
-		N_MSG(OPS, "CMD<%d> data<%s %s> blksz<%d> block<%d> error<%d>", cmd->opcode, (dma ? "dma" : "pio"),
-			(read ? "read " : "write"), data->blksz, data->blocks, data->error);
-	}
-
-#if 0 /* --- by chhung */
-#if 1
-	//if(host->id==1) {
-	if (send_type == SND_CMD) {
-		if (cmd->opcode == MMC_SEND_STATUS) {
-			if ((cmd->resp[0] & CARD_READY_FOR_DATA) || (CARD_CURRENT_STATE(cmd->resp[0]) != 7)) {
-				N_MSG(OPS, "disable clock, CMD13 IDLE");
-				msdc_gate_clock(host->id);
-			}
-		} else {
-			N_MSG(OPS, "disable clock, CMD<%d>", cmd->opcode);
-			msdc_gate_clock(host->id);
-		}
-	} else {
-		if (read) {
-			N_MSG(OPS, "disable clock!!! Read CMD<%d>", cmd->opcode);
-			msdc_gate_clock(host->id);
-		}
-	}
-	//}
-#else
-	msdc_gate_clock(host->id);
-#endif
-#endif /* end of --- */
-
-	if (mrq->cmd->error)
-		host->error = 0x001;
-	if (mrq->data && mrq->data->error)
-		host->error |= 0x010;
-	if (mrq->stop && mrq->stop->error)
-		host->error |= 0x100;
-
-	//if (host->error) ERR_MSG("host->error<%d>", host->error);
-
-	return host->error;
-}
-
-static int msdc_app_cmd(struct mmc_host *mmc, struct msdc_host *host)
-{
-	struct mmc_command cmd;
-	struct mmc_request mrq;
-	u32 err;
-
-	memset(&cmd, 0, sizeof(struct mmc_command));
-	cmd.opcode = MMC_APP_CMD;
-#if 0   /* bug: we meet mmc->card is null when ACMD6 */
-	cmd.arg = mmc->card->rca << 16;
-#else
-	cmd.arg = host->app_cmd_arg;
-#endif
-	cmd.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_AC;
-
-	memset(&mrq, 0, sizeof(struct mmc_request));
-	mrq.cmd = &cmd; cmd.mrq = &mrq;
-	cmd.data = NULL;
-
-	err = msdc_do_command(host, &cmd, 0, CMD_TIMEOUT);
-	return err;
-}
-
-static int msdc_tune_cmdrsp(struct msdc_host *host, struct mmc_command *cmd)
-{
-	int result = -1;
-	u32 rsmpl, cur_rsmpl, orig_rsmpl;
-	u32 rrdly, cur_rrdly = 0xffffffff, orig_rrdly;
-	u32 skip = 1;
-
-	/* ==== don't support 3.0 now ====
-	   1: R_SMPL[1]
-	   2: PAD_CMD_RESP_RXDLY[26:22]
-	   ==========================*/
-
-	// save the previous tune result
-	sdr_get_field(host->base + MSDC_IOCON, MSDC_IOCON_RSPL, &orig_rsmpl);
-	sdr_get_field(host->base + MSDC_PAD_TUNE, MSDC_PAD_TUNE_CMDRRDLY,
-		      &orig_rrdly);
-
-	rrdly = 0;
-	do {
-		for (rsmpl = 0; rsmpl < 2; rsmpl++) {
-			/* Lv1: R_SMPL[1] */
-			cur_rsmpl = (orig_rsmpl + rsmpl) % 2;
-			if (skip == 1) {
-				skip = 0;
-				continue;
-			}
-			sdr_set_field(host->base + MSDC_IOCON, MSDC_IOCON_RSPL,
-				      cur_rsmpl);
-
-			if (host->app_cmd) {
-				result = msdc_app_cmd(host->mmc, host);
-				if (result) {
-					ERR_MSG("TUNE_CMD app_cmd<%d> failed: RESP_RXDLY<%d>,R_SMPL<%d>",
-						host->mrq->cmd->opcode, cur_rrdly, cur_rsmpl);
-					continue;
-				}
-			}
-			result = msdc_do_command(host, cmd, 0, CMD_TIMEOUT); // not tune.
-			ERR_MSG("TUNE_CMD<%d> %s PAD_CMD_RESP_RXDLY[26:22]<%d> R_SMPL[1]<%d>", cmd->opcode,
-				(result == 0) ? "PASS" : "FAIL", cur_rrdly, cur_rsmpl);
-
-			if (result == 0)
-				return 0;
-			if (result != -EIO) {
-				ERR_MSG("TUNE_CMD<%d> Error<%d> not -EIO", cmd->opcode, result);
-				return result;
-			}
-
-			/* should be EIO */
-			/* check if has data phase */
-			if (readl(host->base + SDC_CMD) & 0x1800)
-				msdc_abort_data(host);
-		}
-
-		/* Lv2: PAD_CMD_RESP_RXDLY[26:22] */
-		cur_rrdly = (orig_rrdly + rrdly + 1) % 32;
-		sdr_set_field(host->base + MSDC_PAD_TUNE,
-			      MSDC_PAD_TUNE_CMDRRDLY, cur_rrdly);
-	} while (++rrdly < 32);
-
-	return result;
-}
-
-/* Support SD2.0 Only */
-static int msdc_tune_bread(struct mmc_host *mmc, struct mmc_request *mrq)
-{
-	struct msdc_host *host = mmc_priv(mmc);
-	u32 ddr = 0;
-	u32 dcrc = 0;
-	u32 rxdly, cur_rxdly0, cur_rxdly1;
-	u32 dsmpl, cur_dsmpl,  orig_dsmpl;
-	u32 cur_dat0,  cur_dat1,  cur_dat2,  cur_dat3;
-	u32 cur_dat4,  cur_dat5,  cur_dat6,  cur_dat7;
-	u32 orig_dat0, orig_dat1, orig_dat2, orig_dat3;
-	u32 orig_dat4, orig_dat5, orig_dat6, orig_dat7;
-	int result = -1;
-	u32 skip = 1;
-
-	sdr_get_field(host->base + MSDC_IOCON, MSDC_IOCON_DSPL, &orig_dsmpl);
-
-	/* Tune Method 2. */
-	sdr_set_field(host->base + MSDC_IOCON, MSDC_IOCON_DDLSEL, 1);
-
-	rxdly = 0;
-	do {
-		for (dsmpl = 0; dsmpl < 2; dsmpl++) {
-			cur_dsmpl = (orig_dsmpl + dsmpl) % 2;
-			if (skip == 1) {
-				skip = 0;
-				continue;
-			}
-			sdr_set_field(host->base + MSDC_IOCON, MSDC_IOCON_DSPL,
-				      cur_dsmpl);
-
-			if (host->app_cmd) {
-				result = msdc_app_cmd(host->mmc, host);
-				if (result) {
-					ERR_MSG("TUNE_BREAD app_cmd<%d> failed", host->mrq->cmd->opcode);
-					continue;
-				}
-			}
-			result = msdc_do_request(mmc, mrq);
-
-			sdr_get_field(host->base + SDC_DCRC_STS,
-				      SDC_DCRC_STS_POS | SDC_DCRC_STS_NEG,
-				      &dcrc); /* RO */
-			if (!ddr)
-				dcrc &= ~SDC_DCRC_STS_NEG;
-			ERR_MSG("TUNE_BREAD<%s> dcrc<0x%x> DATRDDLY0/1<0x%x><0x%x> dsmpl<0x%x>",
-				(result == 0 && dcrc == 0) ? "PASS" : "FAIL", dcrc,
-				readl(host->base + MSDC_DAT_RDDLY0),
-				readl(host->base + MSDC_DAT_RDDLY1), cur_dsmpl);
-
-			/* Fix me: result is 0, but dcrc is still exist */
-			if (result == 0 && dcrc == 0) {
-				goto done;
-			} else {
-				/* there is a case: command timeout, and data phase not processed */
-				if (mrq->data->error != 0 &&
-				    mrq->data->error != -EIO) {
-					ERR_MSG("TUNE_READ: result<0x%x> cmd_error<%d> data_error<%d>",
-						result, mrq->cmd->error, mrq->data->error);
-					goto done;
-				}
-			}
-		}
-
-		cur_rxdly0 = readl(host->base + MSDC_DAT_RDDLY0);
-		cur_rxdly1 = readl(host->base + MSDC_DAT_RDDLY1);
-
-		/* E1 ECO. YD: Reverse */
-		if (readl(host->base + MSDC_ECO_VER) >= 4) {
-			orig_dat0 = (cur_rxdly0 >> 24) & 0x1F;
-			orig_dat1 = (cur_rxdly0 >> 16) & 0x1F;
-			orig_dat2 = (cur_rxdly0 >>  8) & 0x1F;
-			orig_dat3 = (cur_rxdly0 >>  0) & 0x1F;
-			orig_dat4 = (cur_rxdly1 >> 24) & 0x1F;
-			orig_dat5 = (cur_rxdly1 >> 16) & 0x1F;
-			orig_dat6 = (cur_rxdly1 >>  8) & 0x1F;
-			orig_dat7 = (cur_rxdly1 >>  0) & 0x1F;
-		} else {
-			orig_dat0 = (cur_rxdly0 >>  0) & 0x1F;
-			orig_dat1 = (cur_rxdly0 >>  8) & 0x1F;
-			orig_dat2 = (cur_rxdly0 >> 16) & 0x1F;
-			orig_dat3 = (cur_rxdly0 >> 24) & 0x1F;
-			orig_dat4 = (cur_rxdly1 >>  0) & 0x1F;
-			orig_dat5 = (cur_rxdly1 >>  8) & 0x1F;
-			orig_dat6 = (cur_rxdly1 >> 16) & 0x1F;
-			orig_dat7 = (cur_rxdly1 >> 24) & 0x1F;
-		}
-
-		if (ddr) {
-			cur_dat0 = (dcrc & (1 << 0) || dcrc & (1 << 8))  ? ((orig_dat0 + 1) % 32) : orig_dat0;
-			cur_dat1 = (dcrc & (1 << 1) || dcrc & (1 << 9))  ? ((orig_dat1 + 1) % 32) : orig_dat1;
-			cur_dat2 = (dcrc & (1 << 2) || dcrc & (1 << 10)) ? ((orig_dat2 + 1) % 32) : orig_dat2;
-			cur_dat3 = (dcrc & (1 << 3) || dcrc & (1 << 11)) ? ((orig_dat3 + 1) % 32) : orig_dat3;
-		} else {
-			cur_dat0 = (dcrc & (1 << 0)) ? ((orig_dat0 + 1) % 32) : orig_dat0;
-			cur_dat1 = (dcrc & (1 << 1)) ? ((orig_dat1 + 1) % 32) : orig_dat1;
-			cur_dat2 = (dcrc & (1 << 2)) ? ((orig_dat2 + 1) % 32) : orig_dat2;
-			cur_dat3 = (dcrc & (1 << 3)) ? ((orig_dat3 + 1) % 32) : orig_dat3;
-		}
-		cur_dat4 = (dcrc & (1 << 4)) ? ((orig_dat4 + 1) % 32) : orig_dat4;
-		cur_dat5 = (dcrc & (1 << 5)) ? ((orig_dat5 + 1) % 32) : orig_dat5;
-		cur_dat6 = (dcrc & (1 << 6)) ? ((orig_dat6 + 1) % 32) : orig_dat6;
-		cur_dat7 = (dcrc & (1 << 7)) ? ((orig_dat7 + 1) % 32) : orig_dat7;
-
-		cur_rxdly0 = (cur_dat0 << 24) | (cur_dat1 << 16) | (cur_dat2 << 8) | (cur_dat3 << 0);
-		cur_rxdly1 = (cur_dat4 << 24) | (cur_dat5 << 16) | (cur_dat6 << 8) | (cur_dat7 << 0);
-
-		writel(cur_rxdly0, host->base + MSDC_DAT_RDDLY0);
-		writel(cur_rxdly1, host->base + MSDC_DAT_RDDLY1);
-
-	} while (++rxdly < 32);
-
-done:
-	return result;
-}
-
-static int msdc_tune_bwrite(struct mmc_host *mmc, struct mmc_request *mrq)
-{
-	struct msdc_host *host = mmc_priv(mmc);
-
-	u32 wrrdly, cur_wrrdly = 0xffffffff, orig_wrrdly;
-	u32 dsmpl,  cur_dsmpl,  orig_dsmpl;
-	u32 rxdly,  cur_rxdly0;
-	u32 orig_dat0, orig_dat1, orig_dat2, orig_dat3;
-	u32 cur_dat0,  cur_dat1,  cur_dat2,  cur_dat3;
-	int result = -1;
-	u32 skip = 1;
-
-	// MSDC_IOCON_DDR50CKD need to check. [Fix me]
-
-	sdr_get_field(host->base + MSDC_PAD_TUNE, MSDC_PAD_TUNE_DATWRDLY,
-		      &orig_wrrdly);
-	sdr_get_field(host->base + MSDC_IOCON, MSDC_IOCON_DSPL, &orig_dsmpl);
-
-	/* Tune Method 2. just DAT0 */
-	sdr_set_field(host->base + MSDC_IOCON, MSDC_IOCON_DDLSEL, 1);
-	cur_rxdly0 = readl(host->base + MSDC_DAT_RDDLY0);
-
-	/* E1 ECO. YD: Reverse */
-	if (readl(host->base + MSDC_ECO_VER) >= 4) {
-		orig_dat0 = (cur_rxdly0 >> 24) & 0x1F;
-		orig_dat1 = (cur_rxdly0 >> 16) & 0x1F;
-		orig_dat2 = (cur_rxdly0 >>  8) & 0x1F;
-		orig_dat3 = (cur_rxdly0 >>  0) & 0x1F;
-	} else {
-		orig_dat0 = (cur_rxdly0 >>  0) & 0x1F;
-		orig_dat1 = (cur_rxdly0 >>  8) & 0x1F;
-		orig_dat2 = (cur_rxdly0 >> 16) & 0x1F;
-		orig_dat3 = (cur_rxdly0 >> 24) & 0x1F;
-	}
-
-	rxdly = 0;
-	do {
-		wrrdly = 0;
-		do {
-			for (dsmpl = 0; dsmpl < 2; dsmpl++) {
-				cur_dsmpl = (orig_dsmpl + dsmpl) % 2;
-				if (skip == 1) {
-					skip = 0;
-					continue;
-				}
-				sdr_set_field(host->base + MSDC_IOCON,
-					      MSDC_IOCON_DSPL, cur_dsmpl);
-
-				if (host->app_cmd) {
-					result = msdc_app_cmd(host->mmc, host);
-					if (result) {
-						ERR_MSG("TUNE_BWRITE app_cmd<%d> failed", host->mrq->cmd->opcode);
-						continue;
-					}
-				}
-				result = msdc_do_request(mmc, mrq);
-
-				ERR_MSG("TUNE_BWRITE<%s> DSPL<%d> DATWRDLY<%d> MSDC_DAT_RDDLY0<0x%x>",
-					result == 0 ? "PASS" : "FAIL",
-					cur_dsmpl, cur_wrrdly, cur_rxdly0);
-
-				if (result == 0) {
-					goto done;
-				} else {
-					/* there is a case: command timeout, and data phase not processed */
-					if (mrq->data->error != -EIO) {
-						ERR_MSG("TUNE_READ: result<0x%x> cmd_error<%d> data_error<%d>",
-							result, mrq->cmd->error, mrq->data->error);
-						goto done;
-					}
-				}
-			}
-			cur_wrrdly = (orig_wrrdly + wrrdly + 1) % 32;
-			sdr_set_field(host->base + MSDC_PAD_TUNE,
-				      MSDC_PAD_TUNE_DATWRDLY, cur_wrrdly);
-		} while (++wrrdly < 32);
-
-		cur_dat0 = (orig_dat0 + rxdly) % 32; /* only adjust bit-1 for crc */
-		cur_dat1 = orig_dat1;
-		cur_dat2 = orig_dat2;
-		cur_dat3 = orig_dat3;
-
-		cur_rxdly0 = (cur_dat0 << 24) | (cur_dat1 << 16) | (cur_dat2 << 8) | (cur_dat3 << 0);
-		writel(cur_rxdly0, host->base + MSDC_DAT_RDDLY0);
-	} while (++rxdly < 32);
-
-done:
-	return result;
-}
-
-static int msdc_get_card_status(struct mmc_host *mmc, struct msdc_host *host, u32 *status)
-{
-	struct mmc_command cmd;
-	struct mmc_request mrq;
-	u32 err;
-
-	memset(&cmd, 0, sizeof(struct mmc_command));
-	cmd.opcode = MMC_SEND_STATUS;
-	if (mmc->card) {
-		cmd.arg = mmc->card->rca << 16;
-	} else {
-		ERR_MSG("cmd13 mmc card is null");
-		cmd.arg = host->app_cmd_arg;
-	}
-	cmd.flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC;
-
-	memset(&mrq, 0, sizeof(struct mmc_request));
-	mrq.cmd = &cmd; cmd.mrq = &mrq;
-	cmd.data = NULL;
-
-	err = msdc_do_command(host, &cmd, 1, CMD_TIMEOUT);
-
-	if (status)
-		*status = cmd.resp[0];
-
-	return err;
-}
-
-static int msdc_check_busy(struct mmc_host *mmc, struct msdc_host *host)
-{
-	u32 err = 0;
-	u32 status = 0;
-
-	do {
-		err = msdc_get_card_status(mmc, host, &status);
-		if (err)
-			return err;
-		/* need cmd12? */
-		ERR_MSG("cmd<13> resp<0x%x>", status);
-	} while (R1_CURRENT_STATE(status) == 7);
-
-	return err;
-}
-
-/* failed when msdc_do_request */
-static int msdc_tune_request(struct mmc_host *mmc, struct mmc_request *mrq)
-{
-	struct msdc_host *host = mmc_priv(mmc);
-	struct mmc_data *data;
-	//u32 base = host->base;
-	int ret = 0, read;
-
-	data = mrq->cmd->data;
-
-	read = data->flags & MMC_DATA_READ ? 1 : 0;
-
-	if (read) {
-		if (data->error == -EIO)
-			ret = msdc_tune_bread(mmc, mrq);
-	} else {
-		ret = msdc_check_busy(mmc, host);
-		if (ret) {
-			ERR_MSG("XXX cmd13 wait program done failed");
-			return ret;
-		}
-		/* CRC and TO */
-		/* Fix me: don't care card status? */
-		ret = msdc_tune_bwrite(mmc, mrq);
-	}
-
-	return ret;
-}
-
-/* ops.request */
-static void msdc_ops_request(struct mmc_host *mmc, struct mmc_request *mrq)
-{
-	struct msdc_host *host = mmc_priv(mmc);
-
-	//=== for sdio profile ===
-#if 0 /* --- by chhung */
-	u32 old_H32, old_L32, new_H32, new_L32;
-	u32 ticks = 0, opcode = 0, sizes = 0, bRx = 0;
-#endif /* end of --- */
-
-	WARN_ON(host->mrq);
-
-	/* start to process */
-	spin_lock(&host->lock);
-#if 0 /* --- by chhung */
-	if (sdio_pro_enable) {  //=== for sdio profile ===
-		if (mrq->cmd->opcode == 52 || mrq->cmd->opcode == 53)
-			GPT_GetCounter64(&old_L32, &old_H32);
-	}
-#endif /* end of --- */
-
-	host->mrq = mrq;
-
-	if (msdc_do_request(mmc, mrq)) {
-		if (host->hw->flags & MSDC_REMOVABLE && ralink_soc == MT762X_SOC_MT7621AT && mrq->data && mrq->data->error)
-			msdc_tune_request(mmc, mrq);
-	}
-
-	/* ==== when request done, check if app_cmd ==== */
-	if (mrq->cmd->opcode == MMC_APP_CMD) {
-		host->app_cmd = 1;
-		host->app_cmd_arg = mrq->cmd->arg;  /* save the RCA */
-	} else {
-		host->app_cmd = 0;
-		//host->app_cmd_arg = 0;
-	}
-
-	host->mrq = NULL;
-
-#if 0 /* --- by chhung */
-	//=== for sdio profile ===
-	if (sdio_pro_enable) {
-		if (mrq->cmd->opcode == 52 || mrq->cmd->opcode == 53) {
-			GPT_GetCounter64(&new_L32, &new_H32);
-			ticks = msdc_time_calc(old_L32, old_H32, new_L32, new_H32);
-
-			opcode = mrq->cmd->opcode;
-			if (mrq->cmd->data) {
-				sizes = mrq->cmd->data->blocks * mrq->cmd->data->blksz;
-				bRx = mrq->cmd->data->flags & MMC_DATA_READ ? 1 : 0;
-			} else {
-				bRx = mrq->cmd->arg	& 0x80000000 ? 1 : 0;
-			}
-
-			if (!mrq->cmd->error)
-				msdc_performance(opcode, sizes, bRx, ticks);
-		}
-	}
-#endif /* end of --- */
-	spin_unlock(&host->lock);
-
-	mmc_request_done(mmc, mrq);
-
-	return;
-}
-
-/* called by ops.set_ios */
-static void msdc_set_buswidth(struct msdc_host *host, u32 width)
-{
-	u32 val = readl(host->base + SDC_CFG);
-
-	val &= ~SDC_CFG_BUSWIDTH;
-
-	switch (width) {
-	default:
-	case MMC_BUS_WIDTH_1:
-		width = 1;
-		val |= (MSDC_BUS_1BITS << 16);
-		break;
-	case MMC_BUS_WIDTH_4:
-		val |= (MSDC_BUS_4BITS << 16);
-		break;
-	case MMC_BUS_WIDTH_8:
-		val |= (MSDC_BUS_8BITS << 16);
-		break;
-	}
-
-	writel(val, host->base + SDC_CFG);
-
-	N_MSG(CFG, "Bus Width = %d", width);
-}
-
-/* ops.set_ios */
-static void msdc_ops_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
-{
-	struct msdc_host *host = mmc_priv(mmc);
-	u32 ddr = 0;
-
-#ifdef MT6575_SD_DEBUG
-	static char *vdd[] = {
-		"1.50v", "1.55v", "1.60v", "1.65v", "1.70v", "1.80v", "1.90v",
-		"2.00v", "2.10v", "2.20v", "2.30v", "2.40v", "2.50v", "2.60v",
-		"2.70v", "2.80v", "2.90v", "3.00v", "3.10v", "3.20v", "3.30v",
-		"3.40v", "3.50v", "3.60v"
-	};
-	static char *power_mode[] = {
-		"OFF", "UP", "ON"
-	};
-	static char *bus_mode[] = {
-		"UNKNOWN", "OPENDRAIN", "PUSHPULL"
-	};
-	static char *timing[] = {
-		"LEGACY", "MMC_HS", "SD_HS"
-	};
-
-	printk("SET_IOS: CLK(%dkHz), BUS(%s), BW(%u), PWR(%s), VDD(%s), TIMING(%s)",
-		ios->clock / 1000, bus_mode[ios->bus_mode],
-		(ios->bus_width == MMC_BUS_WIDTH_4) ? 4 : 1,
-		power_mode[ios->power_mode], vdd[ios->vdd], timing[ios->timing]);
-#endif
-
-	msdc_set_buswidth(host, ios->bus_width);
-
-	/* Power control ??? */
-	switch (ios->power_mode) {
-	case MMC_POWER_OFF:
-	case MMC_POWER_UP:
-		// msdc_set_power_mode(host, ios->power_mode); /* --- by chhung */
-		break;
-	case MMC_POWER_ON:
-		host->power_mode = MMC_POWER_ON;
-		break;
-	default:
-		break;
-	}
-
-	/* Clock control */
-	if (host->mclk != ios->clock) {
-		if (ios->clock > 25000000) {
-			//if (!(host->hw->flags & MSDC_REMOVABLE)) {
-			INIT_MSG("SD data latch edge<%d>", MSDC_SMPL_FALLING);
-			sdr_set_field(host->base + MSDC_IOCON, MSDC_IOCON_RSPL,
-				      MSDC_SMPL_FALLING);
-			sdr_set_field(host->base + MSDC_IOCON, MSDC_IOCON_DSPL,
-				      MSDC_SMPL_FALLING);
-			//} /* for tuning debug */
-		} else { /* default value */
-			writel(0x00000000, host->base + MSDC_IOCON);
-			// writel(0x00000000, host->base + MSDC_DAT_RDDLY0);
-
-			// for MT7620 E2 and afterward
-			writel(0x10101010, host->base + MSDC_DAT_RDDLY0);
-
-			writel(0x00000000, host->base + MSDC_DAT_RDDLY1);
-			// writel(0x00000000, host->base + MSDC_PAD_TUNE);
-
-			// for MT7620 E2 and afterward
-			writel(0x84101010, host->base + MSDC_PAD_TUNE);
-		}
-		msdc_set_mclk(host, ddr, ios->clock);
-	}
-}
-
-/* ops.get_ro */
-static int msdc_ops_get_ro(struct mmc_host *mmc)
-{
-	struct msdc_host *host = mmc_priv(mmc);
-	unsigned long flags;
-	int ro = 0;
-
-	if (host->hw->flags & MSDC_WP_PIN_EN) { /* set for card */
-		spin_lock_irqsave(&host->lock, flags);
-		ro = (readl(host->base + MSDC_PS) >> 31);
-		spin_unlock_irqrestore(&host->lock, flags);
-	}
-	return ro;
-}
-
-/* ops.get_cd */
-static int msdc_ops_get_cd(struct mmc_host *mmc)
-{
-	struct msdc_host *host = mmc_priv(mmc);
-	unsigned long flags;
-	int present = 1;
-
-	/* for sdio, MSDC_REMOVABLE not set, always return 1 */
-	if (!(host->hw->flags & MSDC_REMOVABLE)) {
-		/* For sdio, read H/W always get<1>, but may timeout some times */
-#if 1
-		host->card_inserted = 1;
-		return 1;
-#else
-		host->card_inserted = (host->pm_state.event == PM_EVENT_USER_RESUME) ? 1 : 0;
-		INIT_MSG("sdio ops_get_cd<%d>", host->card_inserted);
-		return host->card_inserted;
-#endif
-	}
-
-	/* MSDC_CD_PIN_EN set for card */
-	if (host->hw->flags & MSDC_CD_PIN_EN) {
-		spin_lock_irqsave(&host->lock, flags);
-#if 0
-		present = host->card_inserted;  /* why not read from H/W: Fix me*/
-#else
-		// CD
-		present = readl(host->base + MSDC_PS) & MSDC_PS_CDSTS;
-		if (cd_active_low)
-			present = present ? 0 : 1;
-		else
-			present = present ? 1 : 0;
-		host->card_inserted = present;
-#endif
-		spin_unlock_irqrestore(&host->lock, flags);
-	} else {
-		present = 0; /* TODO? Check DAT3 pins for card detection */
-	}
-
-	INIT_MSG("ops_get_cd return<%d>", present);
-	return present;
-}
-
-static struct mmc_host_ops mt_msdc_ops = {
-	.request         = msdc_ops_request,
-	.set_ios         = msdc_ops_set_ios,
-	.get_ro          = msdc_ops_get_ro,
-	.get_cd          = msdc_ops_get_cd,
-};
-
-/*--------------------------------------------------------------------------*/
-/* interrupt handler                                                    */
-/*--------------------------------------------------------------------------*/
-static irqreturn_t msdc_irq(int irq, void *dev_id)
-{
-	struct msdc_host  *host = (struct msdc_host *)dev_id;
-	struct mmc_data   *data = host->data;
-	struct mmc_command *cmd = host->cmd;
-
-	u32 cmdsts = MSDC_INT_RSPCRCERR  | MSDC_INT_CMDTMO  | MSDC_INT_CMDRDY  |
-		MSDC_INT_ACMDCRCERR | MSDC_INT_ACMDTMO | MSDC_INT_ACMDRDY |
-		MSDC_INT_ACMD19_DONE;
-	u32 datsts = MSDC_INT_DATCRCERR | MSDC_INT_DATTMO;
-
-	u32 intsts = readl(host->base + MSDC_INT);
-	u32 inten  = readl(host->base + MSDC_INTEN); inten &= intsts;
-
-	writel(intsts, host->base + MSDC_INT);  /* clear interrupts */
-	/* MSG will cause fatal error */
-
-	/* card change interrupt */
-	if (intsts & MSDC_INT_CDSC) {
-		if (host->mmc->caps & MMC_CAP_NEEDS_POLL)
-			return IRQ_HANDLED;
-		IRQ_MSG("MSDC_INT_CDSC irq<0x%.8x>", intsts);
-		schedule_delayed_work(&host->card_delaywork, HZ);
-		/* tuning when plug card ? */
-	}
-
-	/* sdio interrupt */
-	if (intsts & MSDC_INT_SDIOIRQ) {
-		IRQ_MSG("XXX MSDC_INT_SDIOIRQ");  /* seems not sdio irq */
-		//mmc_signal_sdio_irq(host->mmc);
-	}
-
-	/* transfer complete interrupt */
-	if (data != NULL) {
-		if (inten & MSDC_INT_XFER_COMPL) {
-			data->bytes_xfered = host->xfer_size;
-			complete(&host->xfer_done);
-		}
-
-		if (intsts & datsts) {
-			/* do basic reset, or stop command will sdc_busy */
-			msdc_reset_hw(host);
-			msdc_clr_fifo(host);
-			msdc_clr_int();
-
-			if (intsts & MSDC_INT_DATTMO) {
-				IRQ_MSG("XXX CMD<%d> MSDC_INT_DATTMO", host->mrq->cmd->opcode);
-				data->error = -ETIMEDOUT;
-			} else if (intsts & MSDC_INT_DATCRCERR) {
-				IRQ_MSG("XXX CMD<%d> MSDC_INT_DATCRCERR, SDC_DCRC_STS<0x%x>", host->mrq->cmd->opcode, readl(host->base + SDC_DCRC_STS));
-				data->error = -EIO;
-			}
-
-			//if(readl(MSDC_INTEN) & MSDC_INT_XFER_COMPL) {
-			complete(&host->xfer_done); /* Read CRC come fast, XFER_COMPL not enabled */
-		}
-	}
-
-	/* command interrupts */
-	if ((cmd != NULL) && (intsts & cmdsts)) {
-		if ((intsts & MSDC_INT_CMDRDY) || (intsts & MSDC_INT_ACMDRDY) ||
-			(intsts & MSDC_INT_ACMD19_DONE)) {
-			u32 *rsp = &cmd->resp[0];
-
-			switch (host->cmd_rsp) {
-			case RESP_NONE:
-				break;
-			case RESP_R2:
-				*rsp++ = readl(host->base + SDC_RESP3);
-				*rsp++ = readl(host->base + SDC_RESP2);
-				*rsp++ = readl(host->base + SDC_RESP1);
-				*rsp++ = readl(host->base + SDC_RESP0);
-				break;
-			default: /* Response types 1, 3, 4, 5, 6, 7(1b) */
-				if ((intsts & MSDC_INT_ACMDRDY) || (intsts & MSDC_INT_ACMD19_DONE))
-					*rsp = readl(host->base + SDC_ACMD_RESP);
-				else
-					*rsp = readl(host->base + SDC_RESP0);
-				break;
-			}
-		} else if ((intsts & MSDC_INT_RSPCRCERR) || (intsts & MSDC_INT_ACMDCRCERR)) {
-			if (intsts & MSDC_INT_ACMDCRCERR)
-				IRQ_MSG("XXX CMD<%d> MSDC_INT_ACMDCRCERR", cmd->opcode);
-			else
-				IRQ_MSG("XXX CMD<%d> MSDC_INT_RSPCRCERR", cmd->opcode);
-			cmd->error = -EIO;
-		} else if ((intsts & MSDC_INT_CMDTMO) || (intsts & MSDC_INT_ACMDTMO)) {
-			if (intsts & MSDC_INT_ACMDTMO)
-				IRQ_MSG("XXX CMD<%d> MSDC_INT_ACMDTMO", cmd->opcode);
-			else
-				IRQ_MSG("XXX CMD<%d> MSDC_INT_CMDTMO", cmd->opcode);
-			cmd->error = -ETIMEDOUT;
-			msdc_reset_hw(host);
-			msdc_clr_fifo(host);
-			msdc_clr_int();
-		}
-		complete(&host->cmd_done);
-	}
-
-	/* mmc irq interrupts */
-	if (intsts & MSDC_INT_MMCIRQ)
-		printk(KERN_INFO "msdc[%d] MMCIRQ: SDC_CSTS=0x%.8x\r\n",
-		       host->id, readl(host->base + SDC_CSTS));
-
-#ifdef MT6575_SD_DEBUG
-	{
-/*        msdc_int_reg *int_reg = (msdc_int_reg*)&intsts;*/
-		N_MSG(INT, "IRQ_EVT(0x%x): MMCIRQ(%d) CDSC(%d), ACRDY(%d), ACTMO(%d), ACCRE(%d) AC19DN(%d)",
-			intsts,
-			int_reg->mmcirq,
-			int_reg->cdsc,
-			int_reg->atocmdrdy,
-			int_reg->atocmdtmo,
-			int_reg->atocmdcrc,
-			int_reg->atocmd19done);
-		N_MSG(INT, "IRQ_EVT(0x%x): SDIO(%d) CMDRDY(%d), CMDTMO(%d), RSPCRC(%d), CSTA(%d)",
-			intsts,
-			int_reg->sdioirq,
-			int_reg->cmdrdy,
-			int_reg->cmdtmo,
-			int_reg->rspcrc,
-			int_reg->csta);
-		N_MSG(INT, "IRQ_EVT(0x%x): XFCMP(%d) DXDONE(%d), DATTMO(%d), DATCRC(%d), DMAEMP(%d)",
-			intsts,
-			int_reg->xfercomp,
-			int_reg->dxferdone,
-			int_reg->dattmo,
-			int_reg->datcrc,
-			int_reg->dmaqempty);
-	}
-#endif
-
-	return IRQ_HANDLED;
-}
-
-/*--------------------------------------------------------------------------*/
-/* platform_driver members                                                      */
-/*--------------------------------------------------------------------------*/
-/* called by msdc_drv_probe/remove */
-static void msdc_enable_cd_irq(struct msdc_host *host, int enable)
-{
-	struct msdc_hw *hw = host->hw;
-
-	/* for sdio, not set */
-	if ((hw->flags & MSDC_CD_PIN_EN) == 0) {
-		/* Pull down card detection pin since it is not avaiable */
-		/*
-		  if (hw->config_gpio_pin)
-		  hw->config_gpio_pin(MSDC_CD_PIN, GPIO_PULL_DOWN);
-		*/
-		sdr_clr_bits(host->base + MSDC_PS, MSDC_PS_CDEN);
-		sdr_clr_bits(host->base + MSDC_INTEN, MSDC_INTEN_CDSC);
-		sdr_clr_bits(host->base + SDC_CFG, SDC_CFG_INSWKUP);
-		return;
-	}
-
-	N_MSG(CFG, "CD IRQ Enable(%d)", enable);
-
-	if (enable) {
-		/* card detection circuit relies on the core power so that the core power
-		 * shouldn't be turned off. Here adds a reference count to keep
-		 * the core power alive.
-		 */
-		//msdc_vcore_on(host); //did in msdc_init_hw()
-
-		if (hw->config_gpio_pin) /* NULL */
-			hw->config_gpio_pin(MSDC_CD_PIN, GPIO_PULL_UP);
-
-		sdr_set_field(host->base + MSDC_PS, MSDC_PS_CDDEBOUNCE,
-			      DEFAULT_DEBOUNCE);
-		sdr_set_bits(host->base + MSDC_PS, MSDC_PS_CDEN);
-		sdr_set_bits(host->base + MSDC_INTEN, MSDC_INTEN_CDSC);
-
-		/* not in document! Fix me */
-		sdr_set_bits(host->base + SDC_CFG, SDC_CFG_INSWKUP);
-	} else {
-		if (hw->config_gpio_pin) /* NULL */
-			hw->config_gpio_pin(MSDC_CD_PIN, GPIO_PULL_DOWN);
-
-		sdr_clr_bits(host->base + SDC_CFG, SDC_CFG_INSWKUP);
-		sdr_clr_bits(host->base + MSDC_PS, MSDC_PS_CDEN);
-		sdr_clr_bits(host->base + MSDC_INTEN, MSDC_INTEN_CDSC);
-
-		/* Here decreases a reference count to core power since card
-		 * detection circuit is shutdown.
-		 */
-		//msdc_vcore_off(host);
-	}
-}
-
-/* called by msdc_drv_probe */
-static void msdc_init_hw(struct msdc_host *host)
-{
-
-	/* Power on */
-#if 0 /* --- by chhung */
-	msdc_vcore_on(host);
-	msdc_pin_reset(host, MSDC_PIN_PULL_UP);
-	msdc_select_clksrc(host, hw->clk_src);
-	enable_clock(PERI_MSDC0_PDN + host->id, "SD");
-	msdc_vdd_on(host);
-#endif /* end of --- */
-	/* Configure to MMC/SD mode */
-	sdr_set_field(host->base + MSDC_CFG, MSDC_CFG_MODE, MSDC_SDMMC);
-
-	/* Reset */
-	msdc_reset_hw(host);
-	msdc_clr_fifo(host);
-
-	/* Disable card detection */
-	sdr_clr_bits(host->base + MSDC_PS, MSDC_PS_CDEN);
-
-	/* Disable and clear all interrupts */
-	sdr_clr_bits(host->base + MSDC_INTEN, readl(host->base + MSDC_INTEN));
-	writel(readl(host->base + MSDC_INT), host->base + MSDC_INT);
-
-#if 1
-	/* reset tuning parameter */
-	writel(0x00090000, host->base + MSDC_PAD_CTL0);
-	writel(0x000A0000, host->base + MSDC_PAD_CTL1);
-	writel(0x000A0000, host->base + MSDC_PAD_CTL2);
-	// writel(  0x00000000, host->base + MSDC_PAD_TUNE);
-
-	// for MT7620 E2 and afterward
-	writel(0x84101010, host->base + MSDC_PAD_TUNE);
-
-	// writel(0x00000000, host->base + MSDC_DAT_RDDLY0);
-
-	// for MT7620 E2 and afterward
-	writel(0x10101010, host->base + MSDC_DAT_RDDLY0);
-
-	writel(0x00000000, host->base + MSDC_DAT_RDDLY1);
-	writel(0x00000000, host->base + MSDC_IOCON);
-#if 0 // use MT7620 default value: 0x403c004f
-	/* bit0 modified: Rx Data Clock Source: 1 -> 2.0*/
-	writel(0x003C000F, host->base + MSDC_PATCH_BIT0);
-#endif
-
-	if (readl(host->base + MSDC_ECO_VER) >= 4) {
-		if (host->id == 1) {
-			sdr_set_field(host->base + MSDC_PATCH_BIT1,
-				      MSDC_PATCH_BIT1_WRDAT_CRCS, 1);
-			sdr_set_field(host->base + MSDC_PATCH_BIT1,
-				      MSDC_PATCH_BIT1_CMD_RSP,    1);
-
-			/* internal clock: latch read data */
-			sdr_set_bits(host->base + MSDC_PATCH_BIT0,
-				     MSDC_PATCH_BIT_CKGEN_CK);
-		}
-	}
-#endif
-
-	/* for safety, should clear SDC_CFG.SDIO_INT_DET_EN & set SDC_CFG.SDIO in
-	   pre-loader,uboot,kernel drivers. and SDC_CFG.SDIO_INT_DET_EN will be only
-	   set when kernel driver wants to use SDIO bus interrupt */
-	/* Configure to enable SDIO mode. it's must otherwise sdio cmd5 failed */
-	sdr_set_bits(host->base + SDC_CFG, SDC_CFG_SDIO);
-
-	/* disable detect SDIO device interupt function */
-	sdr_clr_bits(host->base + SDC_CFG, SDC_CFG_SDIOIDE);
-
-	/* eneable SMT for glitch filter */
-	sdr_set_bits(host->base + MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKSMT);
-	sdr_set_bits(host->base + MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDSMT);
-	sdr_set_bits(host->base + MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATSMT);
-
-#if 1
-	/* set clk, cmd, dat pad driving */
-	sdr_set_field(host->base + MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKDRVN, 4);
-	sdr_set_field(host->base + MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKDRVP, 4);
-	sdr_set_field(host->base + MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDDRVN, 4);
-	sdr_set_field(host->base + MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDDRVP, 4);
-	sdr_set_field(host->base + MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATDRVN, 4);
-	sdr_set_field(host->base + MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATDRVP, 4);
-#else
-	sdr_set_field(host->base + MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKDRVN, 0);
-	sdr_set_field(host->base + MSDC_PAD_CTL0, MSDC_PAD_CTL0_CLKDRVP, 0);
-	sdr_set_field(host->base + MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDDRVN, 0);
-	sdr_set_field(host->base + MSDC_PAD_CTL1, MSDC_PAD_CTL1_CMDDRVP, 0);
-	sdr_set_field(host->base + MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATDRVN, 0);
-	sdr_set_field(host->base + MSDC_PAD_CTL2, MSDC_PAD_CTL2_DATDRVP, 0);
-#endif
-
-	/* set sampling edge */
-
-	/* write crc timeout detection */
-	sdr_set_field(host->base + MSDC_PATCH_BIT0, 1 << 30, 1);
-
-	/* Configure to default data timeout */
-	sdr_set_field(host->base + SDC_CFG, SDC_CFG_DTOC, DEFAULT_DTOC);
-
-	msdc_set_buswidth(host, MMC_BUS_WIDTH_1);
-
-	N_MSG(FUC, "init hardware done!");
-}
-
-/* called by msdc_drv_remove */
-static void msdc_deinit_hw(struct msdc_host *host)
-{
-	/* Disable and clear all interrupts */
-	sdr_clr_bits(host->base + MSDC_INTEN, readl(host->base + MSDC_INTEN));
-	writel(readl(host->base + MSDC_INT), host->base + MSDC_INT);
-
-	/* Disable card detection */
-	msdc_enable_cd_irq(host, 0);
-	// msdc_set_power_mode(host, MMC_POWER_OFF);   /* make sure power down */ /* --- by chhung */
-}
-
-/* init gpd and bd list in msdc_drv_probe */
-static void msdc_init_gpd_bd(struct msdc_host *host, struct msdc_dma *dma)
-{
-	struct gpd *gpd = dma->gpd;
-	struct bd  *bd  = dma->bd;
-	int i;
-
-	/* we just support one gpd, but gpd->next must be set for desc
-	 * DMA. That's why we alloc 2 gpd structurs.
-	 */
-
-	memset(gpd, 0, sizeof(struct gpd) * 2);
-
-	gpd->bdp  = 1;   /* hwo, cs, bd pointer */
-	gpd->ptr = (void *)dma->bd_addr; /* physical address */
-	gpd->next = (void *)((u32)dma->gpd_addr + sizeof(struct gpd));
-
-	memset(bd, 0, sizeof(struct bd) * MAX_BD_NUM);
-	for (i = 0; i < (MAX_BD_NUM - 1); i++)
-		bd[i].next = (void *)(dma->bd_addr + sizeof(*bd) * (i + 1));
-}
-
-static int msdc_drv_probe(struct platform_device *pdev)
-{
-	struct resource *res;
-	__iomem void *base;
-	struct mmc_host *mmc;
-	struct msdc_host *host;
-	struct msdc_hw *hw;
-	int ret;
-
-	hw = &msdc0_hw;
-
-	if (of_property_read_bool(pdev->dev.of_node, "mtk,wp-en"))
-		msdc0_hw.flags |= MSDC_WP_PIN_EN;
-
-	/* Allocate MMC host for this device */
-	mmc = mmc_alloc_host(sizeof(struct msdc_host), &pdev->dev);
-	if (!mmc)
-		return -ENOMEM;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(base)) {
-		ret = PTR_ERR(base);
-		goto host_free;
-	}
-
-	/* Set host parameters to mmc */
-	mmc->ops        = &mt_msdc_ops;
-	mmc->f_min      = HOST_MIN_MCLK;
-	mmc->f_max      = HOST_MAX_MCLK;
-	mmc->ocr_avail  = MSDC_OCR_AVAIL;
-
-	mmc->caps   = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED;
-
-	//TODO: read this as bus-width from dt (via mmc_of_parse)
-	mmc->caps  |= MMC_CAP_4_BIT_DATA;
-
-	cd_active_low = !of_property_read_bool(pdev->dev.of_node, "mediatek,cd-high");
-
-	if (of_property_read_bool(pdev->dev.of_node, "mediatek,cd-poll"))
-		mmc->caps |= MMC_CAP_NEEDS_POLL;
-
-	/* MMC core transfer sizes tunable parameters */
-	mmc->max_segs      = MAX_HW_SGMTS;
-
-	mmc->max_seg_size  = MAX_SGMT_SZ;
-	mmc->max_blk_size  = HOST_MAX_BLKSZ;
-	mmc->max_req_size  = MAX_REQ_SZ;
-	mmc->max_blk_count = mmc->max_req_size;
-
-	host = mmc_priv(mmc);
-	host->hw        = hw;
-	host->mmc       = mmc;
-	host->id        = pdev->id;
-	if (host->id < 0 || host->id >= 4)
-		host->id = 0;
-	host->error     = 0;
-
-	host->irq       = platform_get_irq(pdev, 0);
-	if (host->irq < 0) {
-		ret = -EINVAL;
-		goto host_free;
-	}
-
-	host->base      = base;
-	host->mclk      = 0;                   /* mclk: the request clock of mmc sub-system */
-	host->hclk      = hclks[hw->clk_src];  /* hclk: clock of clock source to msdc controller */
-	host->sclk      = 0;                   /* sclk: the really clock after divition */
-	host->pm_state  = PMSG_RESUME;
-	host->suspend   = 0;
-	host->core_clkon = 0;
-	host->card_clkon = 0;
-	host->core_power = 0;
-	host->power_mode = MMC_POWER_OFF;
-//    host->card_inserted = hw->flags & MSDC_REMOVABLE ? 0 : 1;
-	host->timeout_ns = 0;
-	host->timeout_clks = DEFAULT_DTOC * 65536;
-
-	host->mrq = NULL;
-	//init_MUTEX(&host->sem); /* we don't need to support multiple threads access */
-
-	mmc_dev(mmc)->dma_mask = NULL;
-
-	/* using dma_alloc_coherent*/  /* todo: using 1, for all 4 slots */
-	host->dma.gpd = dma_alloc_coherent(&pdev->dev,
-					   MAX_GPD_NUM * sizeof(struct gpd),
-					   &host->dma.gpd_addr, GFP_KERNEL);
-	host->dma.bd =  dma_alloc_coherent(&pdev->dev,
-					   MAX_BD_NUM  * sizeof(struct bd),
-					   &host->dma.bd_addr,  GFP_KERNEL);
-	if (!host->dma.gpd || !host->dma.bd) {
-		ret = -ENOMEM;
-		goto release_mem;
-	}
-	msdc_init_gpd_bd(host, &host->dma);
-
-	INIT_DELAYED_WORK(&host->card_delaywork, msdc_tasklet_card);
-	spin_lock_init(&host->lock);
-	msdc_init_hw(host);
-
-	/* TODO check weather flags 0 is correct, the mtk-sd driver uses
-	 * IRQF_TRIGGER_LOW | IRQF_ONESHOT for flags
-	 *
-	 * for flags 0 the trigger polarity is determined by the
-	 * device tree, but not the oneshot flag, but maybe it is also
-	 * not needed because the soc could be oneshot safe.
-	 */
-	ret = devm_request_irq(&pdev->dev, host->irq, msdc_irq, 0, pdev->name,
-			       host);
-	if (ret)
-		goto release;
-
-	platform_set_drvdata(pdev, mmc);
-
-	ret = mmc_add_host(mmc);
-	if (ret)
-		goto release;
-
-	/* Config card detection pin and enable interrupts */
-	if (hw->flags & MSDC_CD_PIN_EN) {  /* set for card */
-		msdc_enable_cd_irq(host, 1);
-	} else {
-		msdc_enable_cd_irq(host, 0);
-	}
-
-	return 0;
-
-release:
-	platform_set_drvdata(pdev, NULL);
-	msdc_deinit_hw(host);
-	cancel_delayed_work_sync(&host->card_delaywork);
-
-release_mem:
-	if (host->dma.gpd)
-		dma_free_coherent(&pdev->dev, MAX_GPD_NUM * sizeof(struct gpd),
-				  host->dma.gpd, host->dma.gpd_addr);
-	if (host->dma.bd)
-		dma_free_coherent(&pdev->dev, MAX_BD_NUM * sizeof(struct bd),
-				  host->dma.bd, host->dma.bd_addr);
-host_free:
-	mmc_free_host(mmc);
-
-	return ret;
-}
-
-/* 4 device share one driver, using "drvdata" to show difference */
-static int msdc_drv_remove(struct platform_device *pdev)
-{
-	struct mmc_host *mmc;
-	struct msdc_host *host;
-
-	mmc  = platform_get_drvdata(pdev);
-	BUG_ON(!mmc);
-
-	host = mmc_priv(mmc);
-	BUG_ON(!host);
-
-	ERR_MSG("removed !!!");
-
-	platform_set_drvdata(pdev, NULL);
-	mmc_remove_host(host->mmc);
-	msdc_deinit_hw(host);
-
-	cancel_delayed_work_sync(&host->card_delaywork);
-
-	dma_free_coherent(&pdev->dev, MAX_GPD_NUM * sizeof(struct gpd),
-			  host->dma.gpd, host->dma.gpd_addr);
-	dma_free_coherent(&pdev->dev, MAX_BD_NUM  * sizeof(struct bd),
-			  host->dma.bd,  host->dma.bd_addr);
-
-	mmc_free_host(host->mmc);
-
-	return 0;
-}
-
-/* Fix me: Power Flow */
-#ifdef CONFIG_PM
-
-static void msdc_drv_pm(struct platform_device *pdev, pm_message_t state)
-{
-	struct mmc_host *mmc = platform_get_drvdata(pdev);
-	if (mmc) {
-		struct msdc_host *host = mmc_priv(mmc);
-		msdc_pm(state, (void *)host);
-	}
-}
-
-static int msdc_drv_suspend(struct platform_device *pdev, pm_message_t state)
-{
-	if (state.event == PM_EVENT_SUSPEND)
-		msdc_drv_pm(pdev, state);
-	return 0;
-}
-
-static int msdc_drv_resume(struct platform_device *pdev)
-{
-	struct pm_message state;
-
-	state.event = PM_EVENT_RESUME;
-	msdc_drv_pm(pdev, state);
-	return 0;
-}
-#endif
-
-static const struct of_device_id mt7620_sdhci_match[] = {
-	{ .compatible = "ralink,mt7620-sdhci" },
-	{},
-};
-MODULE_DEVICE_TABLE(of, mt7620_sdhci_match);
-
-static struct platform_driver mt_msdc_driver = {
-	.probe   = msdc_drv_probe,
-	.remove  = msdc_drv_remove,
-#ifdef CONFIG_PM
-	.suspend = msdc_drv_suspend,
-	.resume  = msdc_drv_resume,
-#endif
-	.driver  = {
-		.name  = DRV_NAME,
-		.of_match_table = mt7620_sdhci_match,
-	},
-};
-
-/*--------------------------------------------------------------------------*/
-/* module init/exit                                                      */
-/*--------------------------------------------------------------------------*/
-static int __init mt_msdc_init(void)
-{
-	int ret;
-	u32 reg;
-
-	// Set the pins for sdxc to sdxc mode
-	//FIXME: this should be done by pinctl and not by the sd driver
-	reg = readl((void __iomem *)(RALINK_SYSCTL_BASE + 0x60)) & ~(0x3 << 18);
-	writel(reg, (void __iomem *)(RALINK_SYSCTL_BASE + 0x60));
-
-	ret = platform_driver_register(&mt_msdc_driver);
-	if (ret) {
-		printk(KERN_ERR DRV_NAME ": Can't register driver");
-		return ret;
-	}
-
-#if defined(MT6575_SD_DEBUG)
-	msdc_debug_proc_init();
-#endif
-	return 0;
-}
-
-static void __exit mt_msdc_exit(void)
-{
-	platform_driver_unregister(&mt_msdc_driver);
-}
-
-module_init(mt_msdc_init);
-module_exit(mt_msdc_exit);
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("MediaTek MT6575 SD/MMC Card Driver");
-MODULE_AUTHOR("Infinity Chen <infinity.chen@mediatek.com>");