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/linux-5.10/Documentation/devicetree/bindings/mmc/
Dmmc-card.txt1 mmc-card / eMMC bindings
2 ------------------------
4 This documents describes the devicetree bindings for a mmc-host controller
5 child node describing a mmc-card / an eMMC, see "Use of Function subnodes"
9 -compatible : Must be "mmc-card"
10 -reg : Must be <0>
13 -broken-hpi : Use this to indicate that the mmc-card has a broken hpi
14 implementation, and that hpi should not be used
19 pinctrl-names = "default";
20 pinctrl-0 = <&mmc2_pins_a>;
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Dmmc-controller.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/mmc/mmc-controller.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Ulf Hansson <ulf.hansson@linaro.org>
25 "#address-cells":
30 "#size-cells":
37 broken-cd:
42 cd-gpios:
46 non-removable:
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/linux-5.10/drivers/mmc/core/
Dquirks.h1 /* SPDX-License-Identifier: GPL-2.0 */
3 * This file contains work-arounds for many known SD/MMC
38 * instead of CMD12-bounded multiblock transfers. For now we'll
40 * - Certain Toshiba cards.
44 MMC_FIXUP("SDMB-32", CID_MANFID_SANDISK, CID_OEMID_ANY, add_quirk_mmc,
107 * Certain Hynix eMMC 4.41 cards might get broken when HPI feature
108 * is used so disable the HPI feature for such buggy cards.
113 * Certain Micron (Numonyx) eMMC 4.5 cards might get broken when HPI
114 * feature is used so disable the HPI feature for such buggy cards.
154 for (f = table; f->vendor_fixup; f++) { in mmc_fixup_device()
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Dmmc.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2003-2004 Russell King, All Rights Reserved.
6 * Copyright (C) 2005-2007 Pierre Ossman, All Rights Reserved.
54 const u32 __mask = (__size < 32 ? 1 << __size : 0) - 1; \
55 const int __off = 3 - ((start) / 32); \
61 __res |= resp[__off-1] << ((32 - __shft) % 32); \
70 u32 *resp = card->raw_cid; in mmc_decode_cid()
76 switch (card->csd.mmca_vsn) { in mmc_decode_cid()
77 case 0: /* MMC v1.0 - v1.2 */ in mmc_decode_cid()
79 card->cid.manfid = UNSTUFF_BITS(resp, 104, 24); in mmc_decode_cid()
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/linux-5.10/include/linux/mmc/
Dcard.h1 /* SPDX-License-Identifier: GPL-2.0-only */
79 bool hpi_en; /* HPI enablebit */
80 bool hpi; /* HPI support bit */ member
81 unsigned int hpi_cmd; /* cmd used as HPI */
122 u8 raw_sectors[4]; /* 212 - 4 bytes */
184 #define SD_SET_CURRENT_NO_CHANGE (-1)
258 #define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1) /* use func->cur_blksize */
260 #define MMC_QUIRK_NONSTD_SDIO (1<<2) /* non-standard SDIO card attached */
264 #define MMC_QUIRK_INAND_CMD38 (1<<6) /* iNAND devices have broken CMD38 */
272 #define MMC_QUIRK_BROKEN_HPI (1<<13) /* Disable broken HPI support */
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/linux-5.10/arch/arm/boot/dts/
Dsun7i-a20-olinuxino-lime-emmc.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
7 #include "sun7i-a20-olinuxino-lime.dts"
10 model = "Olimex A20-OLinuXino-LIME-eMMC";
11 compatible = "olimex,a20-olinuxino-lime-emmc", "allwinner,sun7i-a20";
14 compatible = "mmc-pwrseq-emmc";
15 reset-gpios = <&pio 2 16 GPIO_ACTIVE_LOW>;
20 vmmc-supply = <&reg_vcc3v3>;
21 vqmmc-supply = <&reg_vcc3v3>;
22 bus-width = <4>;
23 non-removable;
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Dsun7i-a20-olimex-som204-evb-emmc.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
3 * Device Tree Source for A20-SOM204-EVB-eMMC Board
9 /dts-v1/;
10 #include "sun7i-a20-olimex-som204-evb.dts"
13 model = "Olimex A20-SOM204-EVB-eMMC";
14 compatible = "olimex,a20-olimex-som204-evb-emmc", "allwinner,sun7i-a20";
17 compatible = "mmc-pwrseq-emmc";
18 reset-gpios = <&pio 2 16 GPIO_ACTIVE_LOW>;
23 vmmc-supply = <&reg_vcc3v3>;
24 mmc-pwrseq = <&mmc2_pwrseq>;
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Dsun7i-a20-olimex-som-evb-emmc.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
3 * Device Tree Source for A20-Olimex-SOM-EVB-eMMC Board
9 /dts-v1/;
10 #include "sun7i-a20-olimex-som-evb.dts"
14 model = "Olimex A20-Olimex-SOM-EVB-eMMC";
15 compatible = "olimex,a20-olimex-som-evb-emmc", "allwinner,sun7i-a20";
18 compatible = "mmc-pwrseq-emmc";
19 reset-gpios = <&pio 2 18 GPIO_ACTIVE_LOW>;
24 vmmc-supply = <&reg_vcc3v3>;
25 mmc-pwrseq = <&mmc2_pwrseq>;
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Dsun7i-a20-olinuxino-micro-emmc.dts5 * This file is dual-licensed: you can use it either under the terms
44 #include "sun7i-a20-olinuxino-micro.dts"
47 model = "Olimex A20-OLinuXino-MICRO-eMMC";
48 compatible = "olimex,a20-olinuxino-micro-emmc", "allwinner,sun7i-a20";
51 compatible = "mmc-pwrseq-emmc";
52 reset-gpios = <&pio 2 16 GPIO_ACTIVE_LOW>;
57 vmmc-supply = <&reg_vcc3v3>;
58 bus-width = <4>;
59 non-removable;
60 mmc-pwrseq = <&mmc2_pwrseq>;
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Dsun7i-a20-olinuxino-lime2-emmc.dts2 * Copyright 2015 - Ultimaker B.V.
5 * This file is dual-licensed: you can use it either under the terms
44 #include "sun7i-a20-olinuxino-lime2.dts"
47 model = "Olimex A20-OLinuXino-LIME2-eMMC";
48 compatible = "olimex,a20-olinuxino-lime2-emmc", "allwinner,sun7i-a20";
51 compatible = "mmc-pwrseq-emmc";
52 reset-gpios = <&pio 2 16 GPIO_ACTIVE_LOW>;
57 vmmc-supply = <&reg_vcc3v3>;
58 vqmmc-supply = <&reg_vcc3v3>;
59 bus-width = <4>;
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Dsun5i-a13-utoo-p66.dts4 * This file is dual-licensed: you can use it either under the terms
43 /dts-v1/;
44 #include "sun5i-a13.dtsi"
45 #include "sun5i-reference-design-tablet.dtsi"
46 #include <dt-bindings/interrupt-controller/irq.h>
50 compatible = "utoo,p66", "allwinner,sun5i-a13";
54 /delete-property/serial0;
58 /delete-property/stdout-path;
63 compatible = "i2c-gpio";
64 sda-gpios = <&pio 6 12 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; /* PG12 */
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Dimx6qdl-tqma6.dtsi1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright 2013-2017 Markus Niebel <Markus.Niebel@tq-group.com>
7 #include <dt-bindings/gpio/gpio.h>
8 #include <dt-bindings/interrupt-controller/irq.h>
11 reg_3p3v: regulator-3p3v {
12 compatible = "regulator-fixed";
13 regulator-name = "supply-3p3v";
14 regulator-min-microvolt = <3300000>;
15 regulator-max-microvolt = <3300000>;
16 regulator-always-on;
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