summaryrefslogtreecommitdiffstats
path: root/drivers/mmc/host/mtk-sd.c
Commit message (Collapse)AuthorAgeFilesLines
...
* mmc: mediatek: add optional module reset propertyWenbin Mei2020-08-241-0/+13
| | | | | | | | | | | | | | | | | | | | This patch fixs eMMC-Access on mt7622/Bpi-64. Before we got these Errors on mounting eMMC ion R64: [ 48.664925] blk_update_request: I/O error, dev mmcblk0, sector 204800 op 0x1:(WRITE) flags 0x800 phys_seg 1 prio class 0 [ 48.676019] Buffer I/O error on dev mmcblk0p1, logical block 0, lost sync page write This patch adds a optional reset management for msdc. Sometimes the bootloader does not bring msdc register to default state, so need reset the msdc controller. Cc: <stable@vger.kernel.org> # v5.4+ Fixes: 966580ad236e ("mmc: mediatek: add support for MT7622 SoC") Signed-off-by: Wenbin Mei <wenbin.mei@mediatek.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Tested-by: Frank Wunderlich <frank-w@public-files.de> Link: https://lore.kernel.org/r/20200814014346.6496-4-wenbin.mei@mediatek.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: make function msdc_cqe_disable() staticWei Yongjun2020-08-051-1/+1
| | | | | | | | | | | | | | | | | The sparse tool complains as follows: drivers/mmc/host/mtk-sd.c:2269:6: warning: symbol 'msdc_cqe_disable' was not declared. Should it be static? This function is not used outside of mtk-sd.c, so this commit marks it static. Fixes: 88bd652b3c74 ("mmc: mediatek: command queue support") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Chun-Hung Wu <chun-hung.wu@mediatek.com> Link: https://lore.kernel.org/r/20200727171129.2945-1-weiyongjun1@huawei.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: command queue supportChun-Hung Wu2020-07-241-0/+115
| | | | | | | | | | | | | | | Support command queue for mt6779 platform. a. Add msdc_set_busy_timeout() to calculate emmc write timeout. b. Connect mtk msdc driver to cqhci driver through host->cq_host->ops = &msdc_cmdq_ops; c. msdc_cmdq_irq() will link up with cqchi_irq(). Besides, it provides more irq error messages like RSPCRCERR/CMDTO/DATACRCERR/DATTMO. d. Select kernel config MMC_CQHCI for MMC_MTK Signed-off-by: Chun-Hung Wu <chun-hung.wu@mediatek.com> Acked-by: Yong Mao <yong.mao@mediatek.com> Link: https://lore.kernel.org/r/1595205759-5825-4-git-send-email-chun-hung.wu@mediatek.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: refine msdc timeout apiChun-Hung Wu2020-07-241-10/+22
| | | | | | | | | | Extract msdc timeout api common part to have better code architecture and avoid redundant code. Signed-off-by: Chun-Hung Wu <chun-hung.wu@mediatek.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Link: https://lore.kernel.org/r/1595205759-5825-3-git-send-email-chun-hung.wu@mediatek.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: add MT6779 MMC driver supportChun-Hung Wu2020-07-241-0/+13
| | | | | | | | Add new code to support MT6779 mmc driver. Signed-off-by: Chun-Hung Wu <chun-hung.wu@mediatek.com> Link: https://lore.kernel.org/r/1595205759-5825-2-git-send-email-chun-hung.wu@mediatek.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mtk-sd: Demote msdc_recheck_sdio_irq() function headerLee Jones2020-07-131-2/+1
| | | | | | | | | | | | | | | | | | | No other function in the file is documented using kerneldoc and no effort to document the function arguments have been made. It's a bit of an oddity to say the least. Let's downgrade it from kerneldoc to a standard comment block instead. Fixes the following W=1 kernel build warning: drivers/mmc/host/mtk-sd.c:1030: warning: Function parameter or member 'host' not described in 'msdc_recheck_sdio_irq' Cc: Chaotian Jing <chaotian.jing@mediatek.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: linux-mediatek@lists.infradead.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Link: https://lore.kernel.org/r/20200701124702.908713-6-lee.jones@linaro.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: host: Drop redundant MMC_CAP_ERASEUlf Hansson2020-05-281-1/+1
| | | | | | | | | | | The MMC_CAP_ERASE bit is no longer used by the mmc core as erase, discard and trim operations are now always supported. Therefore, drop the bit and move all mmc hosts away from using it. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com> Link: https://lore.kernel.org/r/20200508112902.23575-1-ulf.hansson@linaro.org Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
* mmc: host: Prepare host drivers for mmc_regulator_set_vqmmc() returning > 0Marek Vasut2020-05-281-9/+10
| | | | | | | | | | | | Patch all drivers which use mmc_regulator_set_vqmmc() and prepare them for the fact that mmc_regulator_set_vqmmc() can return a value > 0, which would happen if the signal voltage switch did NOT happen, because the voltage was already set correctly. Signed-off-by: Marek Vasut <marex@denx.de> Link: https://lore.kernel.org/r/20200416163649.336967-1-marex@denx.de [Ulf: Re-worked/simplified the code a bit] Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: fix SDIO irq issueyong mao2020-03-271-0/+41
| | | | | | | | | | | | | | | SDIO irq is not triggered by low level, but by falling edge in our previous IC. This mechanism only have one chance to catch the SDIO irq if a SDIO irq comes within the multiple block transmission. This SDIO irq may be easily lost, because falling edge appears only once within 2 clock after data transmission is completed. SDIO irq recheck mechanism will make sure all irqs can be processed correctly. Signed-off-by: Yong Mao <yong.mao@mediatek.com> Link: https://lore.kernel.org/r/1585299097-6897-2-git-send-email-yong.mao@mediatek.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mtk-sd: convert to devm_platform_ioremap_resourceYangtao Li2019-12-181-2/+1
| | | | | | | | Use devm_platform_ioremap_resource() to simplify code. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Link: https://lore.kernel.org/r/20191215175120.3290-12-tiny.windzz@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: fix CMD_TA to 2 for MT8173 HS200/HS400 modeChaotian Jing2019-12-161-0/+2
| | | | | | | | | | | | | there is a chance that always get response CRC error after HS200 tuning, the reason is that need set CMD_TA to 2. this modification is only for MT8173. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Tested-by: Hsin-Yi Wang <hsinyi@chromium.org> Cc: stable@vger.kernel.org Fixes: 1ede5cb88a29 ("mmc: mediatek: Use data tune for CMD line tune") Link: https://lore.kernel.org/r/20191204071958.18553-1-chaotian.jing@mediatek.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mtk-sd: Re-store SDIO IRQs mask at system resumeUlf Hansson2019-09-111-0/+3
| | | | | | | | | | | | | | | | | In cases when SDIO IRQs have been enabled, runtime suspend is prevented by the driver. However, this still means msdc_runtime_suspend|resume() gets called during system suspend/resume, via pm_runtime_force_suspend|resume(). This means during system suspend/resume, the register context of the mtk-sd device most likely loses its register context, even in cases when SDIO IRQs have been enabled. To re-enable the SDIO IRQs during system resume, the mtk-sd driver currently relies on the mmc core to re-enable the SDIO IRQs when it resumes the SDIO card, but this isn't the recommended solution. Instead, it's better to deal with this locally in the mtk-sd driver, so let's do that. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: enable SDIO IRQ low level trigger functionyong mao2019-09-111-0/+2
| | | | | | | | | | | SDIO IRQ is not defaultly triggered by low level, but by falling edge. It needs to set related register to enable SDIO IRQ low level trigger function. Otherwise the SDIO IRQ may be lost in some specail condition. Signed-off-by: Yong Mao <yong.mao@mediatek.com> Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: support 24bits segment sizeChaotian Jing2019-09-111-3/+13
| | | | | | | | MSDC IP which support 64G DRAM will support 24bits BDMA buffer length, so add support it. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: fix controller busy when plug out SDChaotian Jing2019-09-111-3/+5
| | | | | | | | | | when plug out SD card, may get data CRC error, the MMC core will issue CMD13 to get card status, then CMD13 timeout(due to card plug out) will trigger CMD19 tuning, first CMD19 timeout has not call msdc_reset_hw() and cause the next CMD19 gets controller busy. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: fix SDIO IRQ detection issuejjian zhou2019-06-171-0/+2
| | | | | | | | | | | | If cmd19 timeout or response crcerr occurs during execute_tuning(), it need invoke msdc_reset_hw(). Otherwise SDIO IRQ can't be detected. Signed-off-by: jjian zhou <jjian.zhou@mediatek.com> Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Yong Mao <yong.mao@mediatek.com> Fixes: 5215b2e952f3 ("mmc: mediatek: Add MMC_CAP_SDIO_IRQ support") Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: fix SDIO IRQ interrupt handle flowjjian zhou2019-06-171-17/+20
| | | | | | | | | | | | | SDIO IRQ is triggered by low level. It need disable SDIO IRQ detected function. Otherwise the interrupt register can't be cleared. It will process the interrupt more. Signed-off-by: Jjian Zhou <jjian.zhou@mediatek.com> Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Yong Mao <yong.mao@mediatek.com> Fixes: 5215b2e952f3 ("mmc: mediatek: Add MMC_CAP_SDIO_IRQ support") Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174Thomas Gleixner2019-05-301-9/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mmc: mtk-sd: enable internal card-detect logic.NeilBrown2019-05-061-4/+60
| | | | | | | | | | | | | | | | The mtk-sd silicon has integrated card-detect logic that is enabled on the MT7621. The circuit is phased out on newer hardware so we should be careful to only enabled it on hardware known to support it. This a new "use_internal_cd" flag in struct mtk_mmc_compatible. If the sdhci isn't marked non-removable and doesn't have a cd-gpio configured, and if use_internal_cd is set, then assume the internal cd logic should be used as recommended by Documentation/devicetree/bindings/mmc/mmc.txt Signed-off-by: NeilBrown <neil@brown.name> Reviewed-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mtk-sd: add support for config found in mt7620 family SOCs.NeilBrown2019-05-061-0/+12
| | | | | | | | | mt7620 family MIPS SOCs contain the mtk-sd silicon. Add support for this. Signed-off-by: NeilBrown <neil@brown.name> Reviewed-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mtk-sd: don't hard-code interrupt trigger typeNeilBrown2019-05-061-1/+1
| | | | | | | | | | | | | | | | | | When using devicetree for configuration, interrupt trigger type should be described in the dts file, not hard-coded in the C code. The mtk-sd silicon in the mt7621 soc uses an active-high interrupt and so cannot be used with the current code. So replace IRQF_TRIGGER_LOW with IRQF_TRIGGER_NONE. Also IRQF_ONESHOT is not needed - it is used for threaded interrupt handlers, and this driver does not used a threaded interrupt handler. So remove that setting. Signed-off-by: NeilBrown <neil@brown.name> Reviewed-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mtk-sd: check for valid optional memory resourceFabien Parent2019-04-151-3/+5
| | | | | | | | | 'top_base' memory region is optional. Check that the resource is valid before using it. This avoid getting a "invalid resource" error message printed by the kernel. Signed-off-by: Fabien Parent <fparent@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mtk-sd: add support for MT8516Fabien Parent2019-04-151-0/+11
| | | | | | | Add the MSDC configuration for the MT8516 SoC. Signed-off-by: Fabien Parent <fparent@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: fix incorrect register setting of hs400_cmd_int_delayChaotian Jing2019-01-281-1/+1
| | | | | | | | | | to set cmd internal delay, need set PAD_TUNE register but not PAD_CMD_TUNE register. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Fixes: 1ede5cb88a29 ("mmc: mediatek: Use data tune for CMD line tune") Cc: stable@vger.kernel.org # v4.12+ Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: Add MMC_CAP_SDIO_IRQ supportjjian zhou2018-12-191-3/+50
| | | | | | | | | | | This patch enables support SDIO IRQs. It enables MMC_CAP_SDIO_IRQ & MMC_CAP2_SDIO_IRQ_NOTHREAD and implement the ->ack_sdio_irq callback. Signed-off-by: Jjian Zhou <jjian.zhou@mediatek.com> Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Yong Mao <yong.mao@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: drop too much code of tuning methodChaotian Jing2018-10-151-95/+38
| | | | | | | | the tuning code is becoming more and more bloated, let's make the set cmd/data delay to inline function to avoid too much redundant code. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: add MT8183 MMC driver supportChaotian Jing2018-10-151-50/+233
| | | | | | | | MT8183 puts the tune register at top layer, so need add new code to support it. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: tune CMD/DATA togetherChaotian Jing2018-10-151-0/+87
| | | | | | | | | for MSDC IP which supports both data tune and async fifo, it can tune cmd/data together. which can save the time and make the tune result of CMD more stable as data line are 4bit or 8bit. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: fix cannot receive new request when msdc_cmd_is_ready failChaotian Jing2018-10-151-1/+1
| | | | | | | | | | | when msdc_cmd_is_ready return fail, the req_timeout work has not been inited and cancel_delayed_work() will return false, then, the request return directly and never call mmc_request_done(). so need call mod_delayed_work() before msdc_cmd_is_ready() Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: fill the actual clock for mmc debugfsChaotian Jing2018-10-151-6/+7
| | | | | | | | as the mmc core layer has the mmc->actual_clock, so fill it and drop msdc_host->sclk. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: add bus_clk controlChaotian Jing2018-10-081-0/+6
| | | | | | | | | when gate MSDC0_HCLK, access register will hang, even the MSDC driver will never accessing register after HCLK was gated, but for safety, need gate the bus_clk(which used to access register) too. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: add 64G DRAM DMA supportChaotian Jing2018-05-021-7/+49
| | | | | | | | MT2712 MSDC supports 64G DRAM DMA access, it needs update gpd/bd structure. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: use of_device_get_match_data()Ryder Lee2018-05-021-5/+2
| | | | | | | | | | The usage of of_device_get_match_data() reduce the code size a bit. Also, the only way to call msdc_drv_probe() is to match an entry in msdc_of_ids[], so of_id cannot be NULL. Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: add support for MT7622 SoCSean Wang2018-03-051-0/+12
| | | | | | | | | | | Just applying the existing logic and adding its own characteristics into the space pointed by an extra entry of struct of_device_id to have support of MT7622 SoC. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Tested-by: Jumin Li <jumin.li@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: perfer to use rise edge latching for cmd lineChaotian Jing2017-11-021-1/+2
| | | | | | | | | data lines have applied to perfer to use rise edge, also need apply it to cmd line. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Tested-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: improve eMMC hs400 mode read performanceChaotian Jing2017-11-021-0/+9
| | | | | | | | enlarge outstanding value to improve read performance Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Tested-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: add latch-ck supportChaotian Jing2017-11-021-0/+6
| | | | | | | | | | some platform(eg.mt2701) does not support "stop clk fix", in this case, need set correct latch-ck to avoid crc error caused by stop clock block-internally. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Tested-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: add support of source_cg clockChaotian Jing2017-11-021-1/+22
| | | | | | | | | source clock need an independent cg to control, when doing clk mode switch, need gate source clock to avoid hw issue(multi-bit sync hw hang) Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Tested-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: add stop_clk fix and enhance_rx supportChaotian Jing2017-11-021-4/+43
| | | | | | | | | mt2712 supports stop_clk fix and enhance_rx, which can improve host stability. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Tested-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: add busy_check supportChaotian Jing2017-11-021-0/+7
| | | | | | | | | | bit7 of PATCH_BIT1 has different meaning in new design, to compatible with previous platform, clear this bit in new platform. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Tested-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: add async fifo and data tune supportChaotian Jing2017-11-021-2/+50
| | | | | | | | | mt2701/mt2712 supports async fifo & data tune, which can improve host stability. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Tested-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: add pad_tune0 supportChaotian Jing2017-11-021-18/+33
| | | | | | | | | from mt2701, the register of PAD_TUNE has been phased out, while there is a new register of PAD_TUNE0 Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Tested-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: make hs400_tune_response only for mt8173Chaotian Jing2017-11-021-2/+9
| | | | | | | | | | the origin design of hs400_tune_response is for mt8173 because of mt8173 has a special design. for doing that, we add a new member "compatible", by now it's only for mt8173. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Tested-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: add support of mt2701/mt2712Chaotian Jing2017-10-301-13/+69
| | | | | | | | | | mt2701/mt2712 has 12bit clock div, which is not compatible with mt8135/mt8173. and, some additional features will be added in mt2701/mt2712, so that need distinguish it by comatibale name. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Tested-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mtk-sd: catch all errors when getting regulatorsWolfram Sang2017-10-301-1/+1
| | | | | | | | | | | | | Bail out everytime when mmc_regulator_get_supply() returns an errno, not only when probing gets deferred. This is currently a no-op, because this function only returns -EPROBE_DEFER or 0 right now. But if it will throw another error somewhen, it will be for a reason. (This still doesn't change that getting regulators is optional, so 0 can still mean no regulators found). So, let us a) be future proof and b) have driver code which is easier to understand. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: constify mmc_host_ops structuresJulia Lawall2017-08-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mmc_host_ops structure is only stored in the ops field of an mmc_host structure, which is declared as const. Thus the mmc_host_ops structure itself can be const. Done with the help of Coccinelle. // <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct mmc_host_ops i@p = { ... }; @ok1@ struct mmc_host *mmc; identifier r.i; position p; @@ mmc->ops = &i@p @bad@ position p != {r.p,ok1.p}; identifier r.i; struct mmc_host_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct mmc_host_ops i = { ... }; // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: add ops->get_cd() supportChaotian Jing2017-08-301-0/+1
| | | | | | | | | | | | if user plug out sd card slowly, finally card is plugged out but cat /proc/partitions can find that card is still exist in kernel. that's because alougth get card detect interrupt but CMD13 still can get correct response(all other pins are connected expect card detect pin). add ops->get_cd() can avoid this issue. Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: Fixed size in dma_free_coherentPhong LE2017-06-201-1/+1
| | | | | | | | | The dma gpd dma_free_coherent call size in invalid. Fixes: 208489032bdd ("mmc: mediatek: Add Mediatek MMC driver") Signed-off-by: Phong LE <ple@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: use new core function mmc_get_dma_dirHeiner Kallweit2017-04-241-6/+2
| | | | | | | Use new core function mmc_get_dma_dir(). Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: mediatek: Use data tune for CMD line tuneyong mao2017-04-241-16/+152
| | | | | | | | | | | | | | | | | | | | | If we don't select a set of better parameters for our emmc host, It may easily occur CMD response CRC error. And also it may cause cannot boot up issue. Fot getting a set of better parameters, our emmc host supports data tune mechanism.Therefore, our emmc driver also should change to use data tune for CMD line. Because our emmc host use the different clock source to sample the CMD signal between HS200 and HS400 mode, the parameters are also different between these two modes. Separate cmd internal delay for HS200/HS400 mode. This change can fix "System can not boot up" issue. Signed-off-by: Yong Mao <yong.mao@mediatek.com> Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
generated by cgit v1.2.3 (git 2.46.0) at 2025-04-25 03:11:16 +0000