[PATCH 03/16] staging: m57621-mmc: delete driver from the tree.

From: Greg Kroah-Hartman
Date: Tue Apr 02 2019 - 06:33:27 EST

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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@xxxxxxxxx>
Cc: NeilBrown <neil@xxxxxxxxxx>
Cc: George Hilliard <thirtythreeforty@xxxxxxxxx>
Cc: "Christian LÃtke-Stetzkamp" <christian@xxxxxxxx>
Cc: Nishad Kamdar <nishadkamdar@xxxxxxxxx>
Cc: Sergej Perschin <ser.perschin@xxxxxxxxx>
Cc: John Crispin <blogic@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/Kconfig | 2 -
drivers/staging/Makefile | 1 -
drivers/staging/mt7621-mmc/Kconfig | 9 -
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 | 311 ----
drivers/staging/mt7621-mmc/dbg.h | 106 --
drivers/staging/mt7621-mmc/mt6575_sd.h | 485 -------
drivers/staging/mt7621-mmc/sd.c | 1859 ------------------------
10 files changed, 2886 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

diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 37121f495cd7..6319369cca89 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -113,8 +113,6 @@ source "drivers/staging/mt7621-dma/Kconfig"

source "drivers/staging/ralink-gdma/Kconfig"

-source "drivers/staging/mt7621-mmc/Kconfig"
-
source "drivers/staging/mt7621-dts/Kconfig"

source "drivers/staging/gasket/Kconfig"
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index d1b17ddcd354..763d18f56b10 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -46,7 +46,6 @@ obj-$(CONFIG_PINCTRL_RT2880) += mt7621-pinctrl/
obj-$(CONFIG_SPI_MT7621) += mt7621-spi/
obj-$(CONFIG_SOC_MT7621) += mt7621-dma/
obj-$(CONFIG_DMA_RALINK) += ralink-gdma/
-obj-$(CONFIG_MTK_MMC) += mt7621-mmc/
obj-$(CONFIG_SOC_MT7621) += mt7621-dts/
obj-$(CONFIG_STAGING_GASKET_FRAMEWORK) += gasket/
obj-$(CONFIG_XIL_AXIS_FIFO) += axis-fifo/
diff --git a/drivers/staging/mt7621-mmc/Kconfig b/drivers/staging/mt7621-mmc/Kconfig
deleted file mode 100644
index 6ede50e9ddc0..000000000000
--- a/drivers/staging/mt7621-mmc/Kconfig
+++ /dev/null
@@ -1,9 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-config MTK_MMC
- tristate "MTK SD/MMC"
- depends on RALINK && MMC
-
-config MTK_AEE_KDUMP
- bool "MTK AEE KDUMP"
- depends on MTK_MMC
-
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@xxxxxxxxxx>
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 2310f3bcc16e..000000000000
--- a/drivers/staging/mt7621-mmc/dbg.c
+++ /dev/null
@@ -1,311 +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/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>
-
-/* for debug zone */
-unsigned int sd_debug_zone[4] = {
- 0,
- 0,
- 0,
- 0
-};
-
-#if defined(MT6575_SD_DEBUG)
-static char cmd_buf[256];
-/* 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};
-
-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;
-
- 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);
-
- ret = sscanf(cmd_buf, "%x %x %x", &cmd, &p1, &p2);
- if (ret != 3)
- return -EINVAL;
-
- 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)
- 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,
-};
-
-// Keep ahold of the proc entry we create so it can be freed during
-// module removal
-struct proc_dir_entry *msdc_debug_proc_entry;
-
-void __init msdc_debug_proc_init(void)
-{
- msdc_debug_proc_entry = proc_create("msdc_debug", 0660,
- NULL, &msdc_debug_fops);
-}
-
-void __exit msdc_debug_proc_deinit(void)
-{
- proc_remove(msdc_debug_proc_entry);
-}
-#endif
diff --git a/drivers/staging/mt7621-mmc/dbg.h b/drivers/staging/mt7621-mmc/dbg.h
deleted file mode 100644
index b6a09876d7ae..000000000000
--- a/drivers/staging/mt7621-mmc/dbg.h
+++ /dev/null
@@ -1,106 +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 BIT(0) /* DMA related event */
-#define DBG_EVT_CMD BIT(1) /* MSDC CMD related event */
-#define DBG_EVT_RSP BIT(2) /* MSDC CMD RSP related event */
-#define DBG_EVT_INT BIT(3) /* MSDC INT event */
-#define DBG_EVT_CFG BIT(4) /* MSDC CFG event */
-#define DBG_EVT_FUC BIT(5) /* Function event */
-#define DBG_EVT_OPS BIT(6) /* Read/Write operation event */
-#define DBG_EVT_FIO BIT(7) /* FIFO operation event */
-#define DBG_EVT_WRN BIT(8) /* Warning event */
-#define DBG_EVT_PWR BIT(9) /* Power event */
-#define DBG_EVT_ALL (0xffffffff)
-
-#define DBG_EVT_MASK (DBG_EVT_ALL)
-
-extern unsigned int sd_debug_zone[4];
-#ifdef MT6575_SD_DEBUG
-void __init msdc_debug_proc_init(void);
-void __exit msdc_debug_proc_deinit(void);
-#else
-static inline void msdc_debug_proc_init(void) {}
-static inline void msdc_debug_proc_deinit(void) {}
-#endif
-
-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 7ee3a9ed328a..000000000000
--- a/drivers/staging/mt7621-mmc/mt6575_sd.h
+++ /dev/null
@@ -1,485 +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>
-
-/*--------------------------------------------------------------------------*/
-/* 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_BURST_8B (3)
-#define MSDC_BURST_16B (4)
-#define MSDC_BURST_32B (5)
-#define MSDC_BURST_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_BURSTSZ (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 BIT(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 */
-
- 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 9a4b27562cd0..000000000000
--- a/drivers/staging/mt7621-mmc/sd.c
+++ /dev/null
@@ -1,1859 +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/interrupt.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)
-
-#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)
-
-/* +++ by chhung */
-struct msdc_hw msdc0_hw = {
- .clk_src = 0,
- .flags = 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)
-
-/* 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
-
-#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 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);
-
-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);
-}
-
-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;
-
- 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;
-
- /* Make sure: handle the last interrupt */
- host->card_inserted = inserted;
-
- if (!host->suspend) {
- mmc_detect_change(host->mmc, msecs_to_jiffies(20));
- }
-
- spin_unlock(&host->lock);
-}
-
-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 ?
- 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?
-
- sdr_set_bits(host->base + MSDC_INTEN, flags);
-}
-
-/* Fix me. when need to abort */
-static void msdc_abort_data(struct msdc_host *host)
-{
- struct mmc_command *stop = host->mrq->stop;
-
- dev_err(mmc_dev(host->mmc), "%d -> Need to Abort.\n", host->id);
-
- 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 */
- dev_err(mmc_dev(host->mmc), "%d -> stop when abort CMD<%d>\n",
- host->id, stop->opcode);
- (void)msdc_do_command(host, stop, 0, CMD_TIMEOUT);
- }
-
- //if (host->mclk >= 25000000) {
- // msdc_set_mclk(host, 0, host->mclk >> 1);
- //}
-}
-
-#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_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)
- return;
-
- /* No PM resume when USR suspend */
- if (evt == PM_EVENT_RESUME && host->pm_state.event == PM_EVENT_USER_SUSPEND) {
- dev_err(mmc_dev(host->mmc),
- "%d -> PM Resume when in USR Suspend\n",
- host->id); /* 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);
- }
-
- tmo = jiffies + timeout;
-
- if (opcode == MMC_SEND_STATUS) {
- for (;;) {
- if (!sdc_is_cmd_busy())
- break;
-
- if (time_after(jiffies, tmo)) {
- dev_err(mmc_dev(host->mmc),
- "%d -> XXX cmd_busy timeout: before CMD<%d>\n",
- host->id, opcode);
- cmd->error = -ETIMEDOUT;
- msdc_reset_hw(host);
- goto end;
- }
- }
- } else {
- for (;;) {
- if (!sdc_is_busy())
- break;
- if (time_after(jiffies, tmo)) {
- dev_err(mmc_dev(host->mmc),
- "%d -> XXX sdc_busy timeout: before CMD<%d>\n",
- host->id, opcode);
- cmd->error = -ETIMEDOUT;
- msdc_reset_hw(host);
- goto end;
- }
- }
- }
-
- //BUG_ON(in_interrupt());
- host->cmd = cmd;
- host->cmd_rsp = resp;
-
- // The completion should have been consumed by the previous command
- // response handler, because the mmc requests should be serialized
- if (completion_done(&host->cmd_done))
- dev_err(mmc_dev(host->mmc),
- "previous command was not handled\n");
-
- 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());
- //sdr_set_bits(host->base + MSDC_INTEN, wints);
-
- spin_unlock(&host->lock);
- if (!wait_for_completion_io_timeout(&host->cmd_done, 10 * timeout)) {
- dev_err(mmc_dev(host->mmc),
- "%d -> XXX CMD<%d> wait_for_completion timeout ARG<0x%.8x>\n",
- host->id, 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:
- /* 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 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:
-
- return cmd->error;
-}
-
-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);
-}
-
-static void msdc_dma_stop(struct msdc_host *host)
-{
- //u32 retries=500;
- u32 wints = MSDC_INTEN_XFER_COMPL | MSDC_INTEN_DATTMO | MSDC_INTEN_DATCRCERR;
-
- //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 */
-}
-
-/* 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;
-
- 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_BURSTSZ,
- MSDC_BURST_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);
-}
-
-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);
- BUG_ON(!mrq);
-
- host->error = 0;
-
- cmd = mrq->cmd;
- data = mrq->cmd->data;
-
- 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!! */
-
- // The completion should have been consumed by the previous
- // xfer response handler, because the mmc requests should be
- // serialized
- if (completion_done(&host->cmd_done))
- dev_err(mmc_dev(host->mmc),
- "previous transfer was not handled\n");
-
- /* 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));
-
- if (data->sg_count == 0) {
- dev_err(mmc_dev(host->mmc), "failed to map DMA for transfer\n");
- data->error = -ENOMEM;
- goto done;
- }
-
- 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 unmap;
-
- /* for read, the data coming too fast, then CRC error
- * start DMA no business with CRC.
- */
- msdc_dma_start(host);
-
- spin_unlock(&host->lock);
- if (!wait_for_completion_io_timeout(&host->xfer_done, DAT_TIMEOUT)) {
- dev_err(mmc_dev(host->mmc),
- "%d -> XXX CMD<%d> wait xfer_done<%d> timeout!!\n",
- host->id, cmd->opcode,
- data->blocks * data->blksz);
- dev_err(mmc_dev(host->mmc),
- "%d -> DMA_SA = 0x%x\n",
- host->id, readl(host->base + MSDC_DMA_SA));
- dev_err(mmc_dev(host->mmc),
- "%d -> DMA_CA = 0x%x\n",
- host->id, readl(host->base + MSDC_DMA_CA));
- dev_err(mmc_dev(host->mmc),
- "%d -> DMA_CTRL = 0x%x\n",
- host->id, readl(host->base + MSDC_DMA_CTRL));
- dev_err(mmc_dev(host->mmc),
- "%d -> DMA_CFG = 0x%x\n",
- host->id, 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 unmap;
- }
-
-unmap:
- host->data = NULL;
- dma_unmap_sg(mmc_dev(mmc), data->sg, data->sg_len,
- mmc_get_dma_dir(data));
- host->blksz = 0;
- }
-
-done:
- 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;
-
- return host->error;
-}
-
-static int msdc_app_cmd(struct mmc_host *mmc, struct msdc_host *host)
-{
- struct mmc_command cmd;
- struct mmc_request mrq;
-
- memset(&cmd, 0, sizeof(struct mmc_command));
- cmd.opcode = MMC_APP_CMD;
- cmd.arg = host->app_cmd_arg;
- 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;
-
- return msdc_do_command(host, &cmd, 0, CMD_TIMEOUT);
-}
-
-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) {
- dev_err(mmc_dev(host->mmc),
- "%d -> TUNE_CMD app_cmd<%d> failed: RESP_RXDLY<%d>,R_SMPL<%d>\n",
- host->id,
- host->mrq->cmd->opcode,
- cur_rrdly, cur_rsmpl);
- continue;
- }
- }
- result = msdc_do_command(host, cmd, 0, CMD_TIMEOUT); // not tune.
- dev_err(mmc_dev(host->mmc),
- "%d -> TUNE_CMD<%d> %s PAD_CMD_RESP_RXDLY[26:22]<%d> R_SMPL[1]<%d>\n",
- host->id, cmd->opcode,
- (result == 0) ? "PASS" : "FAIL", cur_rrdly,
- cur_rsmpl);
-
- if (result == 0)
- return 0;
- if (result != -EIO) {
- dev_err(mmc_dev(host->mmc),
- "%d -> TUNE_CMD<%d> Error<%d> not -EIO\n",
- host->id, 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) {
- dev_err(mmc_dev(host->mmc),
- "%d -> TUNE_BREAD app_cmd<%d> failed\n",
- host->id,
- 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;
- dev_err(mmc_dev(host->mmc),
- "%d -> TUNE_BREAD<%s> dcrc<0x%x> DATRDDLY0/1<0x%x><0x%x> dsmpl<0x%x>\n",
- host->id,
- (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) {
- dev_err(mmc_dev(host->mmc),
- "%d -> TUNE_READ: result<0x%x> cmd_error<%d> data_error<%d>\n",
- host->id, 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) {
- dev_err(mmc_dev(host->mmc),
- "%d -> TUNE_BWRITE app_cmd<%d> failed\n",
- host->id,
- host->mrq->cmd->opcode);
- continue;
- }
- }
- result = msdc_do_request(mmc, mrq);
-
- dev_err(mmc_dev(host->mmc),
- "%d -> TUNE_BWRITE<%s> DSPL<%d> DATWRDLY<%d> MSDC_DAT_RDDLY0<0x%x>\n",
- host->id,
- 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) {
- dev_err(mmc_dev(host->mmc),
- "%d -> TUNE_READ: result<0x%x> cmd_error<%d> data_error<%d>\n",
- host->id, 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 {
- dev_err(mmc_dev(host->mmc), "%d -> cmd13 mmc card is null\n",
- host->id);
- 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? */
- dev_err(mmc_dev(host->mmc), "%d -> cmd<13> resp<0x%x>\n",
- host->id, 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) {
- dev_err(mmc_dev(host->mmc),
- "%d -> XXX cmd13 wait program done failed\n",
- host->id);
- 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);
-
- WARN_ON(host->mrq);
-
- /* start to process */
- spin_lock(&host->lock);
-
- 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;
-
- spin_unlock(&host->lock);
-
- mmc_request_done(mmc, mrq);
-}
-
-/* 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);
-}
-
-/* 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 const char * const 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 const char * const power_mode[] = {
- "OFF", "UP", "ON"
- };
- static const char * const bus_mode[] = {
- "UNKNOWN", "OPENDRAIN", "PUSHPULL"
- };
- static const char * const 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:
- 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)) {
- 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;
- 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);
- // 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;
- spin_unlock_irqrestore(&host->lock, flags);
- } else {
- present = 0; /* TODO? Check DAT3 pins for card detection */
- }
-
- 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;
- schedule_delayed_work(&host->card_delaywork, 0);
- /* tuning when plug card ? */
- }
-
- /* transfer complete interrupt */
- if (data) {
- 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)
- data->error = -ETIMEDOUT;
- else if (intsts & MSDC_INT_DATCRCERR)
- 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 && (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)) {
- cmd->error = -EIO;
- } else if ((intsts & MSDC_INT_CMDTMO) || (intsts & MSDC_INT_ACMDTMO)) {
- 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)
- dev_info(mmc_dev(host->mmc), "msdc[%d] MMCIRQ: SDC_CSTS=0x%.8x\r\n",
- host->id, readl(host->base + SDC_CSTS));
-
- 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 available */
- /*
- * 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;
- }
-
- 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.
- */
-
- 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.
- */
- }
-}
-
-/* called by msdc_drv_probe */
-static void msdc_init_hw(struct msdc_host *host)
-{
- /* 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 (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 interrupt 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);
-}
-
-/* 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);
-}
-
-/* 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;
-
- dma_coerce_mask_and_coherent(mmc_dev(mmc), DMA_BIT_MASK(32));
-
- /* 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_completion(&host->cmd_done);
- init_completion(&host->xfer_done);
- 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);
-
- dev_err(mmc_dev(host->mmc), "%d -> removed !!!\n",
- host->id);
-
- 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;
-
- ret = platform_driver_register(&mt_msdc_driver);
- if (ret) {
- pr_err("%s: Can't register driver", DRV_NAME);
- return ret;
- }
-
- msdc_debug_proc_init();
-
- return 0;
-}
-
-static void __exit mt_msdc_exit(void)
-{
- msdc_debug_proc_deinit();
-
- 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@xxxxxxxxxxxx>");
--
2.21.0

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