Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 8b634a9c authored by John Crispin's avatar John Crispin Committed by Greg Kroah-Hartman
Browse files

staging: mt7621-mmc: MIPS: ralink: add sdhci for mt7620a SoC 



NeilBrown:
  Added range-check on pdev->id before assigning ot
    host->id

  of_dma_configure() sets a default ->dma_mask of
  DMA_BIT_MASK(32), claiming devices can DMA from
  the full 32bit address space.
  The mtk-mmc driver does not support access to
  highmem pages, so it is really limited to the
  bottom 512M (actually 448M due to 64M of IO space).
  Setting ->dma_mask to NULL causes mmc_setup_queue()
  to fall-back to using BLK_BOUNCE_HIGH to tell the
  block layer to use a bounce-buffer for any highmem
  pages requiring IO.

Signed-off-by: default avatarJohn Crispin <blogic@openwrt.org>
Signed-off-by: default avatarNeilBrown <neil@brown.name>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 0853c7a5

drivers/staging/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -126,4 +126,6 @@ source "drivers/staging/mt7621-spi/Kconfig" 


source "drivers/staging/mt7621-dma/Kconfig"



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



endif # STAGING

drivers/staging/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -54,3 +54,4 @@ obj-$(CONFIG_SOC_MT7621) += mt7621-pinctrl/ 
obj-$(CONFIG_SOC_MT7621)	+= mt7621-gpio/

obj-$(CONFIG_SOC_MT7621)	+= mt7621-spi/

obj-$(CONFIG_SOC_MT7621)	+= mt7621-dma/

obj-$(CONFIG_SOC_MT7621)	+= mt7621-mmc/

drivers/staging/mt7621-mmc/Kconfig

0 → 100644
+16 −0
Original line number Diff line number Diff line 
config MTK_MMC

	tristate "MTK SD/MMC"

	depends on !MTD_NAND_RALINK && MMC



config MTK_AEE_KDUMP

	bool "MTK AEE KDUMP"

	depends on MTK_MMC



config MTK_MMC_CD_POLL

	bool "Card Detect with Polling"

	depends on MTK_MMC



config MTK_MMC_EMMC_8BIT

	bool "eMMC 8-bit support"

	depends on MTK_MMC && RALINK_MT7628

drivers/staging/mt7621-mmc/Makefile

0 → 100644
+42 −0
Original line number Diff line number Diff line 
# 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

drivers/staging/mt7621-mmc/TODO

0 → 100644
+8 −0
Original line number Diff line number Diff line 


- general code review and clean up

- ensure device-tree requirements are documented

- should probably be merged with drivers/mmc/host/mtk-sd.c

- possibly fix to work with highmem pages so a bounce buffer isn't

  needed.



Cc: NeilBrown <neil@brown.name>