diff options
66 files changed, 1382 insertions, 431 deletions
diff --git a/Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt b/Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt index 50bf611a4d2c..13e70409e8ac 100644 --- a/Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt +++ b/Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt @@ -12,6 +12,7 @@ Required properties: - "amlogic,meson-gxbb-mmc" - "amlogic,meson-gxl-mmc" - "amlogic,meson-gxm-mmc" + - "amlogic,meson-axg-mmc" - clocks : A list of phandle + clock-specifier pairs for the clocks listed in clock-names. - clock-names: Should contain the following: "core" - Main peripheral bus clock @@ -19,6 +20,7 @@ Required properties: "clkin1" - Other parent clock of internal mux The driver has an internal mux clock which switches between clkin0 and clkin1 depending on the clock rate requested by the MMC core. +- resets : phandle of the internal reset line Example: @@ -29,4 +31,5 @@ Example: clocks = <&clkc CLKID_SD_EMMC_A>, <&xtal>, <&clkc CLKID_FCLK_DIV2>; clock-names = "core", "clkin0", "clkin1"; pinctrl-0 = <&emmc_pins>; + resets = <&reset RESET_SD_EMMC_A>; }; diff --git a/Documentation/devicetree/bindings/mmc/bluefield-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/bluefield-dw-mshc.txt new file mode 100644 index 000000000000..b0f0999ea1a9 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/bluefield-dw-mshc.txt @@ -0,0 +1,29 @@ +* Mellanox Bluefield SoC specific extensions to the Synopsys Designware + Mobile Storage Host Controller + +Read synopsys-dw-mshc.txt for more details + +The Synopsys designware mobile storage host controller is used to interface +a SoC with storage medium such as eMMC or SD/MMC cards. This file documents +differences between the core Synopsys dw mshc controller properties described +by synopsys-dw-mshc.txt and the properties used by the Mellanox Bluefield SoC +specific extensions to the Synopsys Designware Mobile Storage Host Controller. + +Required Properties: + +* compatible: should be one of the following. + - "mellanox,bluefield-dw-mshc": for controllers with Mellanox Bluefield SoC + specific extensions. + +Example: + + /* Mellanox Bluefield SoC MMC */ + mmc@6008000 { + compatible = "mellanox,bluefield-dw-mshc"; + reg = <0x6008000 0x400>; + interrupts = <32>; + fifo-depth = <0x100>; + clock-frequency = <24000000>; + bus-width = <8>; + cap-mmc-highspeed; + }; diff --git a/Documentation/devicetree/bindings/mmc/jz4740.txt b/Documentation/devicetree/bindings/mmc/jz4740.txt new file mode 100644 index 000000000000..7cd8c432d7c8 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/jz4740.txt @@ -0,0 +1,38 @@ +* Ingenic JZ47xx MMC controllers + +This file documents the device tree properties used for the MMC controller in +Ingenic JZ4740/JZ4780 SoCs. These are in addition to the core MMC properties +described in mmc.txt. + +Required properties: +- compatible: Should be one of the following: + - "ingenic,jz4740-mmc" for the JZ4740 + - "ingenic,jz4780-mmc" for the JZ4780 +- reg: Should contain the MMC controller registers location and length. +- interrupts: Should contain the interrupt specifier of the MMC controller. +- clocks: Clock for the MMC controller. + +Optional properties: +- dmas: List of DMA specifiers with the controller specific format + as described in the generic DMA client binding. A tx and rx + specifier is required. +- dma-names: RX and TX DMA request names. + Should be "rx" and "tx", in that order. + +For additional details on DMA client bindings see ../dma/dma.txt. + +Example: + +mmc0: mmc@13450000 { + compatible = "ingenic,jz4780-mmc"; + reg = <0x13450000 0x1000>; + + interrupt-parent = <&intc>; + interrupts = <37>; + + clocks = <&cgu JZ4780_CLK_MSC0>; + clock-names = "mmc"; + + dmas = <&dma JZ4780_DMA_MSC0_RX 0xffffffff>, <&dma JZ4780_DMA_MSC0_TX 0xffffffff>; + dma-names = "rx", "tx"; +}; diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt index 467cd7b147ce..f5a0923b34ca 100644 --- a/Documentation/devicetree/bindings/mmc/mmc.txt +++ b/Documentation/devicetree/bindings/mmc/mmc.txt @@ -19,6 +19,8 @@ Optional properties: - wp-gpios: Specify GPIOs for write protection, see gpio binding - cd-inverted: when present, polarity on the CD line is inverted. See the note below for the case, when a GPIO is used for the CD line +- cd-debounce-delay-ms: Set delay time before detecting card after card insert interrupt. + It's only valid when cd-gpios is present. - wp-inverted: when present, polarity on the WP line is inverted. See the note below for the case, when a GPIO is used for the WP line - disable-wp: When set no physical WP line is present. This property should @@ -56,6 +58,10 @@ Optional properties: - fixed-emmc-driver-type: for non-removable eMMC, enforce this driver type. The value <n> is the driver type as specified in the eMMC specification (table 206 in spec version 5.1). +- post-power-on-delay-ms : It was invented for MMC pwrseq-simple which could + be referred to mmc-pwrseq-simple.txt. But now it's reused as a tunable delay + waiting for I/O signalling and card power supply to be stable, regardless of + whether pwrseq-simple is used. Default to 10ms if no available. *NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line polarity properties, we have to fix the meaning of the "normal" and "inverted" diff --git a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt index 51775a372c06..393848c2138e 100644 --- a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt +++ b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt @@ -4,7 +4,14 @@ Refer to mmc.txt for standard MMC bindings. Required properties: - compatible: Should be "ti,dra7-sdhci" for DRA7 and DRA72 controllers + Should be "ti,k2g-sdhci" for K2G - ti,hwmods: Must be "mmc<n>", <n> is controller instance starting 1 + (Not required for K2G). +- pinctrl-names: Should be subset of "default", "hs", "sdr12", "sdr25", "sdr50", + "ddr50-rev11", "sdr104-rev11", "ddr50", "sdr104", + "ddr_1_8v-rev11", "ddr_1_8v" or "ddr_3_3v", "hs200_1_8v-rev11", + "hs200_1_8v", +- pinctrl-<n> : Pinctrl states as described in bindings/pinctrl/pinctrl-bindings.txt Example: mmc1: mmc@4809c000 { diff --git a/Documentation/devicetree/bindings/mmc/tmio_mmc.txt b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt index 2d5287eeed95..ee978c95189d 100644 --- a/Documentation/devicetree/bindings/mmc/tmio_mmc.txt +++ b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt @@ -26,6 +26,8 @@ Required properties: "renesas,sdhi-r8a7794" - SDHI IP on R8A7794 SoC "renesas,sdhi-r8a7795" - SDHI IP on R8A7795 SoC "renesas,sdhi-r8a7796" - SDHI IP on R8A7796 SoC + "renesas,sdhi-r8a77965" - SDHI IP on R8A77965 SoC + "renesas,sdhi-r8a77980" - SDHI IP on R8A77980 SoC "renesas,sdhi-r8a77995" - SDHI IP on R8A77995 SoC "renesas,sdhi-shmobile" - a generic sh-mobile SDHI controller "renesas,rcar-gen1-sdhi" - a generic R-Car Gen1 SDHI controller diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts index 38078594cf97..50cff3cbcc6d 100644 --- a/arch/mips/boot/dts/ingenic/ci20.dts +++ b/arch/mips/boot/dts/ingenic/ci20.dts @@ -36,6 +36,28 @@ clock-frequency = <48000000>; }; +&mmc0 { + status = "okay"; + + bus-width = <4>; + max-frequency = <50000000>; + + pinctrl-names = "default"; + pinctrl-0 = <&pins_mmc0>; + + cd-gpios = <&gpf 20 GPIO_ACTIVE_LOW>; +}; + +&mmc1 { + status = "okay"; + + bus-width = <4>; + max-frequency = <50000000>; + + pinctrl-names = "default"; + pinctrl-0 = <&pins_mmc1>; +}; + &uart0 { status = "okay"; @@ -203,4 +225,16 @@ groups = "nemc-cs6"; bias-disable; }; + + pins_mmc0: mmc0 { + function = "mmc0"; + groups = "mmc0-1bit-e", "mmc0-4bit-e"; + bias-disable; + }; + + pins_mmc1: mmc1 { + function = "mmc1"; + groups = "mmc1-1bit-d", "mmc1-4bit-d"; + bias-disable; + }; }; diff --git a/arch/mips/boot/dts/ingenic/jz4780.dtsi b/arch/mips/boot/dts/ingenic/jz4780.dtsi index 9b5794667aee..b72e53bb7292 100644 --- a/arch/mips/boot/dts/ingenic/jz4780.dtsi +++ b/arch/mips/boot/dts/ingenic/jz4780.dtsi @@ -1,5 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 #include <dt-bindings/clock/jz4780-cgu.h> +#include <dt-bindings/dma/jz4780-dma.h> / { #address-cells = <1>; @@ -241,6 +242,57 @@ status = "disabled"; }; + dma: dma@13420000 { + compatible = "ingenic,jz4780-dma"; + reg = <0x13420000 0x10000>; + #dma-cells = <2>; + + interrupt-parent = <&intc>; + interrupts = <10>; + + clocks = <&cgu JZ4780_CLK_PDMA>; + }; + + mmc0: mmc@13450000 { + compatible = "ingenic,jz4780-mmc"; + reg = <0x13450000 0x1000>; + + interrupt-parent = <&intc>; + interrupts = <37>; + + clocks = <&cgu JZ4780_CLK_MSC0>; + clock-names = "mmc"; + + cap-sd-highspeed; + cap-mmc-highspeed; + cap-sdio-irq; + dmas = <&dma JZ4780_DMA_MSC0_RX 0xffffffff>, + <&dma JZ4780_DMA_MSC0_TX 0xffffffff>; + dma-names = "rx", "tx"; + + status = "disabled"; + }; + + mmc1: mmc@13460000 { + compatible = "ingenic,jz4780-mmc"; + reg = <0x13460000 0x1000>; + + interrupt-parent = <&intc>; + interrupts = <36>; + + clocks = <&cgu JZ4780_CLK_MSC1>; + clock-names = "mmc"; + + cap-sd-highspeed; + cap-mmc-highspeed; + cap-sdio-irq; + dmas = <&dma JZ4780_DMA_MSC1_RX 0xffffffff>, + <&dma JZ4780_DMA_MSC1_TX 0xffffffff>; + dma-names = "rx", "tx"; + + status = "disabled"; + }; + bch: bch@134d0000 { compatible = "ingenic,jz4780-bch"; reg = <0x134d0000 0x10000>; diff --git a/arch/mips/configs/ci20_defconfig b/arch/mips/configs/ci20_defconfig index b5f4ad8f2c45..be23fd25eeaa 100644 --- a/arch/mips/configs/ci20_defconfig +++ b/arch/mips/configs/ci20_defconfig @@ -104,10 +104,14 @@ CONFIG_REGULATOR_FIXED_VOLTAGE=y # CONFIG_HID is not set # CONFIG_USB_SUPPORT is not set CONFIG_MMC=y +CONFIG_MMC_JZ4740=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_JZ4740=y +CONFIG_DMADEVICES=y +CONFIG_DMA_JZ4780=y # CONFIG_IOMMU_SUPPORT is not set CONFIG_MEMORY=y +CONFIG_EXT4_FS=y # CONFIG_DNOTIFY is not set CONFIG_PROC_KCORE=y # CONFIG_PROC_PAGE_MONITOR is not set diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index d89e17829527..a0b9102c4c6e 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -2351,7 +2351,8 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card, set_disk_ro(md->disk, md->read_only || default_ro); md->disk->flags = GENHD_FL_EXT_DEVT; if (area_type & (MMC_BLK_DATA_AREA_RPMB | MMC_BLK_DATA_AREA_BOOT)) - md->disk->flags |= GENHD_FL_NO_PART_SCAN; + md->disk->flags |= GENHD_FL_NO_PART_SCAN + | GENHD_FL_SUPPRESS_PARTITION_INFO; /* * As discussed on lkml, GENHD_FL_REMOVABLE should: @@ -2965,9 +2966,11 @@ static void mmc_blk_remove(struct mmc_card *card) mmc_blk_remove_debugfs(card, md); mmc_blk_remove_parts(card, md); pm_runtime_get_sync(&card->dev); - mmc_claim_host(card->host); - mmc_blk_part_switch(card, md->part_type); - mmc_release_host(card->host); + if (md->part_curr != md->part_type) { + mmc_claim_host(card->host); + mmc_blk_part_switch(card, md->part_type); + mmc_release_host(card->host); + } if (card->type != MMC_TYPE_SD_COMBO) pm_runtime_disable(&card->dev); pm_runtime_put_noidle(&card->dev); diff --git a/drivers/mmc/core/card.h b/drivers/mmc/core/card.h index 9c821eedd156..1170feb8f969 100644 --- a/drivers/mmc/core/card.h +++ b/drivers/mmc/core/card.h @@ -149,6 +149,12 @@ static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data) card->quirks &= ~data; } +static inline void __maybe_unused add_limit_rate_quirk(struct mmc_card *card, + int data) +{ + card->quirk_max_rate = data; +} + /* * Quirk add/remove for MMC products. */ diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 121ce50b6d5e..281826d1fcca 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -50,9 +50,6 @@ #include "sd_ops.h" #include "sdio_ops.h" -/* If the device is not responding */ -#define MMC_CORE_TIMEOUT_MS (10 * 60 * 1000) /* 10 minute timeout */ - /* The max erase timeout, used when host->max_busy_timeout isn't specified */ #define MMC_ERASE_TIMEOUT_MS (60 * 1000) /* 60 s */ @@ -1484,6 +1481,17 @@ int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage) } +void mmc_set_initial_signal_voltage(struct mmc_host *host) +{ + /* Try to set signal voltage to 3.3V but fall back to 1.8v or 1.2v */ + if (!mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_330)) + dev_dbg(mmc_dev(host), "Initial signal voltage of 3.3v\n"); + else if (!mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180)) + dev_dbg(mmc_dev(host), "Initial signal voltage of 1.8v\n"); + else if (!mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120)) + dev_dbg(mmc_dev(host), "Initial signal voltage of 1.2v\n"); +} + int mmc_host_set_uhs_voltage(struct mmc_host *host) { u32 clock; @@ -1646,19 +1654,13 @@ void mmc_power_up(struct mmc_host *host, u32 ocr) /* Set initial state and call mmc_set_ios */ mmc_set_initial_state(host); - /* Try to set signal voltage to 3.3V but fall back to 1.8v or 1.2v */ - if (!mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_330)) - dev_dbg(mmc_dev(host), "Initial signal voltage of 3.3v\n"); - else if (!mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180)) - dev_dbg(mmc_dev(host), "Initial signal voltage of 1.8v\n"); - else if (!mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120)) - dev_dbg(mmc_dev(host), "Initial signal voltage of 1.2v\n"); + mmc_set_initial_signal_voltage(host); /* * This delay should be sufficient to allow the power supply * to reach the minimum voltage. */ - mmc_delay(10); + mmc_delay(host->ios.power_delay_ms); mmc_pwrseq_post_power_on(host); @@ -1671,7 +1673,7 @@ void mmc_power_up(struct mmc_host *host, u32 ocr) * This delay must be at least 74 clock sizes, or 1 ms, or the * time required to reach a stable voltage. */ - mmc_delay(10); + mmc_delay(host->ios.power_delay_ms); } void mmc_power_off(struct mmc_host *host) @@ -1967,6 +1969,7 @@ static int mmc_do_erase(struct mmc_card *card, unsigned int from, unsigned int qty = 0, busy_timeout = 0; bool use_r1b_resp = false; unsigned long timeout; + int loop_udelay=64, udelay_max=32768; int err; mmc_retune_hold(card->host); @@ -2091,9 +2094,15 @@ static int mmc_do_erase(struct mmc_card *card, unsigned int from, err = -EIO; goto out; } + if ((cmd.resp[0] & R1_READY_FOR_DATA) && + R1_CURRENT_STATE(cmd.resp[0]) != R1_STATE_PRG) + break; + + usleep_range(loop_udelay, loop_udelay*2); + if (loop_udelay < udelay_max) + loop_udelay *= 2; + } while (1); - } while (!(cmd.resp[0] & R1_READY_FOR_DATA) || - (R1_CURRENT_STATE(cmd.resp[0]) == R1_STATE_PRG)); out: mmc_retune_release(card->host); return err; @@ -2435,22 +2444,46 @@ int mmc_hw_reset(struct mmc_host *host) return -EINVAL; mmc_bus_get(host); - if (!host->bus_ops || host->bus_dead || !host->bus_ops->reset) { + if (!host->bus_ops || host->bus_dead || !host->bus_ops->hw_reset) { mmc_bus_put(host); return -EOPNOTSUPP; } - ret = host->bus_ops->reset(host); + ret = host->bus_ops->hw_reset(host); mmc_bus_put(host); if (ret) - pr_warn("%s: tried to reset card, got error %d\n", + pr_warn("%s: tried to HW reset card, got error %d\n", mmc_hostname(host), ret); return ret; } EXPORT_SYMBOL(mmc_hw_reset); +int mmc_sw_reset(struct mmc_host *host) +{ + int ret; + + if (!host->card) + return -EINVAL; + + mmc_bus_get(host); + if (!host->bus_ops || host->bus_dead || !host->bus_ops->sw_reset) { + mmc_bus_put(host); + return -EOPNOTSUPP; + } + + ret = host->bus_ops->sw_reset(host); + mmc_bus_put(host); + + if (ret) + pr_warn("%s: tried to SW reset card, got error %d\n", + mmc_hostname(host), ret); + + return ret; +} +EXPORT_SYMBOL(mmc_sw_reset); + static int mmc_rescan_try_freq(struct mmc_host *host, unsigned freq) { host->f_init = freq; diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h index d6303d69071b..9d8f09ac0821 100644 --- a/drivers/mmc/core/core.h +++ b/drivers/mmc/core/core.h @@ -32,7 +32,8 @@ struct mmc_bus_ops { int (*power_restore)(struct mmc_host *); int (*alive)(struct mmc_host *); int (*shutdown)(struct mmc_host *); - int (*reset)(struct mmc_host *); + int (*hw_reset)(struct mmc_host *); + int (*sw_reset)(struct mmc_host *); }; void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops); @@ -51,6 +52,7 @@ u32 mmc_select_voltage(struct mmc_host *host, u32 ocr); int mmc_set_uhs_voltage(struct mmc_host *host, u32 ocr); int mmc_host_set_uhs_voltage(struct mmc_host *host); int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage); +void mmc_set_initial_signal_voltage(struct mmc_host *host); void mmc_set_timing(struct mmc_host *host, unsigned int timing); void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type); int mmc_select_drive_strength(struct mmc_card *card, unsigned int max_dtr, diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 64b03d6eaf18..abf9e884386c 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -143,9 +143,6 @@ int mmc_retune(struct mmc_host *host) goto out; return_to_hs400 = true; - - if (host->ops->prepare_hs400_tuning) - host->ops->prepare_hs400_tuning(host, &host->ios); } err = mmc_execute_tuning(host->card); @@ -179,7 +176,7 @@ static void mmc_retune_timer(struct timer_list *t) int mmc_of_parse(struct mmc_host *host) { struct device *dev = host->parent; - u32 bus_width, drv_type; + u32 bus_width, drv_type, cd_debounce_delay_ms; int ret; bool cd_cap_invert, cd_gpio_invert = false; bool ro_cap_invert, ro_gpio_invert = false; @@ -230,11 +227,16 @@ int mmc_of_parse(struct mmc_host *host) } else { cd_cap_invert = device_property_read_bool(dev, "cd-inverted"); + if (device_property_read_u32(dev, "cd-debounce-delay-ms", + &cd_debounce_delay_ms)) + cd_debounce_delay_ms = 200; + if (device_property_read_bool(dev, "broken-cd")) host->caps |= MMC_CAP_NEEDS_POLL; ret = mmc_gpiod_request_cd(host, "cd", 0, true, - 0, &cd_gpio_invert); + cd_debounce_delay_ms, + &cd_gpio_invert); if (!ret) dev_info(host->parent, "Got CD GPIO\n"); else if (ret != -ENOENT && ret != -ENOSYS) @@ -338,6 +340,9 @@ int mmc_of_parse(struct mmc_host *host) host->dsr_req = 0; } + device_property_read_u32(dev, "post-power-on-delay-ms", + &host->ios.power_delay_ms); + |