| /linux/drivers/mtd/nand/raw/ |
| H A D | mxic_nand.c | 184 static int mxic_nfc_clk_enable(struct mxic_nand_ctlr *nfc) in mxic_nfc_clk_enable() argument
188 ret = clk_prepare_enable(nfc->ps_clk); in mxic_nfc_clk_enable()
192 ret = clk_prepare_enable(nfc->send_clk); in mxic_nfc_clk_enable()
196 ret = clk_prepare_enable(nfc->send_dly_clk); in mxic_nfc_clk_enable()
203 clk_disable_unprepare(nfc->send_clk); in mxic_nfc_clk_enable()
205 clk_disable_unprepare(nfc->ps_clk); in mxic_nfc_clk_enable()
210 static void mxic_nfc_clk_disable(struct mxic_nand_ctlr *nfc) in mxic_nfc_clk_disable() argument
212 clk_disable_unprepare(nfc->send_clk); in mxic_nfc_clk_disable()
213 clk_disable_unprepare(nfc->send_dly_clk); in mxic_nfc_clk_disable()
214 clk_disable_unprepare(nfc->ps_clk); in mxic_nfc_clk_disable()
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| H A D | stm32_fmc2_nand.c | 251 int (*set_cdev)(struct stm32_fmc2_nfc *nfc);
295 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_timings_init() local
301 regmap_update_bits(nfc->regmap, FMC2_PCR, in stm32_fmc2_nfc_timings_init()
311 regmap_write(nfc->regmap, FMC2_PMEM, pmem); in stm32_fmc2_nfc_timings_init()
318 regmap_write(nfc->regmap, FMC2_PATT, patt); in stm32_fmc2_nfc_timings_init()
323 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_setup() local
345 regmap_update_bits(nfc->regmap, FMC2_PCR, pcr_mask, pcr); in stm32_fmc2_nfc_setup()
350 struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); in stm32_fmc2_nfc_select_chip() local
355 if (nand->cs_used[chipnr] == nfc->cs_sel) in stm32_fmc2_nfc_select_chip()
358 nfc->cs_sel = nand->cs_used[chipnr]; in stm32_fmc2_nfc_select_chip()
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| H A D | mtk_nand.c | 216 struct mtk_nfc *nfc = nand_get_controller_data(chip); in mtk_data_ptr() local
218 return nfc->buffer + i * mtk_data_len(chip); in mtk_data_ptr()
223 struct mtk_nfc *nfc = nand_get_controller_data(chip); in mtk_oob_ptr() local
225 return nfc->buffer + i * mtk_data_len(chip) + chip->ecc.size; in mtk_oob_ptr()
228 static inline void nfi_writel(struct mtk_nfc *nfc, u32 val, u32 reg) in nfi_writel() argument
230 writel(val, nfc->regs + reg); in nfi_writel()
233 static inline void nfi_writew(struct mtk_nfc *nfc, u16 val, u32 reg) in nfi_writew() argument
235 writew(val, nfc->regs + reg); in nfi_writew()
238 static inline void nfi_writeb(struct mtk_nfc *nfc, u8 val, u32 reg) in nfi_writeb() argument
240 writeb(val, nfc->regs + reg); in nfi_writeb()
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| H A D | vf610_nfc.c | 53 /* Addresses for NFC MAIN RAM BUFFER areas */
76 /* NFC ECC mode define */
174 static inline u32 vf610_nfc_read(struct vf610_nfc *nfc, uint reg) in vf610_nfc_read() argument
176 return readl(nfc->regs + reg); in vf610_nfc_read()
179 static inline void vf610_nfc_write(struct vf610_nfc *nfc, uint reg, u32 val) in vf610_nfc_write() argument
181 writel(val, nfc->regs + reg); in vf610_nfc_write()
184 static inline void vf610_nfc_set(struct vf610_nfc *nfc, uint reg, u32 bits) in vf610_nfc_set() argument
186 vf610_nfc_write(nfc, reg, vf610_nfc_read(nfc, reg) | bits); in vf610_nfc_set()
189 static inline void vf610_nfc_clear(struct vf610_nfc *nfc, uint reg, u32 bits) in vf610_nfc_clear() argument
191 vf610_nfc_write(nfc, reg, vf610_nfc_read(nfc, reg) & ~bits); in vf610_nfc_clear()
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| H A D | meson_nand.c | 266 struct meson_nfc *nfc = nand_get_controller_data(nand); in meson_nfc_select_chip() local
272 nfc->param.chip_select = meson_chip->sels[chip] ? NAND_CE1 : NAND_CE0; in meson_nfc_select_chip()
273 nfc->param.rb_select = nfc->param.chip_select; in meson_nfc_select_chip()
274 nfc->timing.twb = meson_chip->twb; in meson_nfc_select_chip()
275 nfc->timing.tadl = meson_chip->tadl; in meson_nfc_select_chip()
276 nfc->timing.tbers_max = meson_chip->tbers_max; in meson_nfc_select_chip()
278 if (nfc->clk_rate != meson_chip->clk_rate) { in meson_nfc_select_chip()
279 ret = clk_set_rate(nfc->nand_clk, meson_chip->clk_rate); in meson_nfc_select_chip()
281 dev_err(nfc->dev, "failed to set clock rate\n"); in meson_nfc_select_chip()
284 nfc->clk_rate = meson_chip->clk_rate; in meson_nfc_select_chip()
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| H A D | arasan-nand-controller.c | 234 static int anfc_wait_for_event(struct arasan_nfc *nfc, unsigned int event) in anfc_wait_for_event() argument
239 ret = readl_relaxed_poll_timeout(nfc->base + INTR_STS_REG, val, in anfc_wait_for_event()
243 dev_err(nfc->dev, "Timeout waiting for event 0x%x\n", event); in anfc_wait_for_event()
247 writel_relaxed(event, nfc->base + INTR_STS_REG); in anfc_wait_for_event()
252 static int anfc_wait_for_rb(struct arasan_nfc *nfc, struct nand_chip *chip, in anfc_wait_for_rb() argument
260 ret = readl_relaxed_poll_timeout(nfc->base + READY_STS_REG, val, in anfc_wait_for_rb()
264 dev_err(nfc->dev, "Timeout waiting for R/B 0x%x\n", in anfc_wait_for_rb()
265 readl_relaxed(nfc->base + READY_STS_REG)); in anfc_wait_for_rb()
272 static void anfc_trigger_op(struct arasan_nfc *nfc, struct anfc_op *nfc_op) in anfc_trigger_op() argument
274 writel_relaxed(nfc_op->pkt_reg, nfc->base + PKT_REG); in anfc_trigger_op()
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| H A D | marvell_nand.c | 98 /* NFC does not support transfers of larger chunks at a time */
107 /* Latency in clock cycles between SoC pins and NFC logic */
516 static void marvell_nfc_disable_int(struct marvell_nfc *nfc, u32 int_mask) in marvell_nfc_disable_int() argument
521 reg = readl_relaxed(nfc->regs + NDCR); in marvell_nfc_disable_int()
522 writel_relaxed(reg | int_mask, nfc->regs + NDCR); in marvell_nfc_disable_int()
525 static void marvell_nfc_enable_int(struct marvell_nfc *nfc, u32 int_mask) in marvell_nfc_enable_int() argument
530 reg = readl_relaxed(nfc->regs + NDCR); in marvell_nfc_enable_int()
531 writel_relaxed(reg & ~int_mask, nfc->regs + NDCR); in marvell_nfc_enable_int()
534 static u32 marvell_nfc_clear_int(struct marvell_nfc *nfc, u32 int_mask) in marvell_nfc_clear_int() argument
538 reg = readl_relaxed(nfc->regs + NDSR); in marvell_nfc_clear_int()
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| H A D | mpc5121_nfc.c | 31 /* Addresses for NFC MAIN RAM BUFFER areas */
34 /* Addresses for NFC SPARE BUFFER areas */
39 /* MPC5121 NFC registers */
121 /* Read NFC register */
130 /* Write NFC register */
139 /* Set bits in NFC register */
145 /* Clear bits in NFC register */
167 /* Send data from NFC buffers to NAND flash */
199 /* NFC interrupt handler */
313 * NFC handles ready/busy signal internally. Therefore, this function in mpc5121_nfc_dev_ready()
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| /linux/Documentation/driver-api/mei/ |
| H A D | nfc.rst | 3 MEI NFC
6 Some Intel 8 and 9 Series chipsets support NFC devices connected behind
8 MEI client bus exposes the NFC chips as NFC phy devices and enables
9 binding with Microread and NXP PN544 NFC device driver from the Linux NFC
13 :alt: MEI NFC digraph
14 :caption: **MEI NFC** Stack
16 digraph NFC {
18 "drivers/nfc/mei_phy" -> cl_nfc [lhead=bus];
19 "drivers/nfc/microread/mei" -> cl_nfc;
20 "drivers/nfc/microread/mei" -> "drivers/nfc/mei_phy";
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| /linux/drivers/nfc/ |
| H A D | Kconfig | 3 # Near Field Communication (NFC) devices
6 menu "Near Field Communication (NFC) devices"
7 depends on NFC
10 tristate "Texas Instruments TRF7970a NFC driver"
13 This option enables the NFC driver for Texas Instruments' TRF7970a
22 tristate "MEI bus NFC device support"
25 This adds support to use an mei bus nfc device. Select this if you
26 will use an HCI NFC driver for an NFC chip connected behind an
32 tristate "NFC hardware simulator driver"
35 This driver declares two virtual NFC devices supporting NFC-DEP
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| /linux/drivers/nfc/nfcmrvl/ |
| H A D | Kconfig | 5 The core driver to support Marvell NFC devices.
8 Marvell NFC device 8897.
11 tristate "Marvell NFC-over-USB driver"
15 Marvell NFC-over-USB driver.
17 This driver provides support for Marvell NFC-over-USB devices:
20 Say Y here to compile support for Marvell NFC-over-USB driver
24 tristate "Marvell NFC-over-UART driver"
28 Marvell NFC-over-UART driver.
30 This driver provides support for Marvell NFC-over-UART devices
32 Say Y here to compile support for Marvell NFC-over-UART driver
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| /linux/drivers/mtd/nand/raw/ingenic/ |
| H A D | ingenic_nand_drv.c | 152 struct ingenic_nfc *nfc = to_ingenic_nfc(nand->chip.controller); in ingenic_nand_ecc_calculate() local
166 return ingenic_ecc_calculate(nfc->ecc, ¶ms, dat, ecc_code); in ingenic_nand_ecc_calculate()
173 struct ingenic_nfc *nfc = to_ingenic_nfc(nand->chip.controller); in ingenic_nand_ecc_correct() local
180 return ingenic_ecc_correct(nfc->ecc, ¶ms, dat, read_ecc); in ingenic_nand_ecc_correct()
186 struct ingenic_nfc *nfc = to_ingenic_nfc(chip->controller); in ingenic_nand_attach_chip() local
199 if (!nfc->ecc) { in ingenic_nand_attach_chip()
200 dev_err(nfc->dev, "HW ECC selected, but ECC controller not found\n"); in ingenic_nand_attach_chip()
209 dev_info(nfc->dev, "using %s (strength %d, size %d, bytes %d)\n", in ingenic_nand_attach_chip()
210 (nfc->ecc) ? "hardware ECC" : "software ECC", in ingenic_nand_attach_chip()
214 dev_info(nfc->dev, "not using ECC\n"); in ingenic_nand_attach_chip()
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| /linux/Documentation/devicetree/bindings/mtd/ |
| H A D | rockchip,nand-controller.yaml | 7 title: Rockchip SoCs NAND FLASH Controller (NFC)
18 - const: rockchip,px30-nfc
19 - const: rockchip,rk2928-nfc
20 - const: rockchip,rv1108-nfc
23 - rockchip,rk3036-nfc
24 - rockchip,rk3128-nfc
25 - const: rockchip,rk2928-nfc
27 - const: rockchip,rk3308-nfc
28 - const: rockchip,rv1108-nfc
46 - const: nfc
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| H A D | atmel-nand.txt | 21 - atmel,nfc-io: phandle to the NFC IO block. Only required for sama5d3
23 - atmel,nfc-sram: phandle to the NFC SRAM block. Only required for sama5d3
65 nfc_io: nfc-io@70000000 {
66 compatible = "atmel,sama5d3-nfc-io", "syscon";
91 atmel,nfc-sram = <&nfc_sram>;
92 atmel,nfc-io = <&nfc_io>;
151 Nand Flash Controller(NFC) is an optional sub-node
153 - compatible : "atmel,sama5d3-nfc".
154 - reg : should specify the address and size used for NFC command registers,
155 NFC registers and NFC SRAM. NFC SRAM address and size can be absent
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| H A D | mediatek,mtk-nfc.yaml | 4 $id: http://devicetree.org/schemas/mtd/mediatek,mtk-nfc.yaml#
7 title: MediaTek(MTK) SoCs raw NAND FLASH controller (NFC)
15 - mediatek,mt2701-nfc
16 - mediatek,mt2712-nfc
17 - mediatek,mt7622-nfc
58 const: mediatek,mt2701-nfc
73 const: mediatek,mt2712-nfc
88 const: mediatek,mt7622-nfc
119 compatible = "mediatek,mt2701-nfc";
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| H A D | amlogic,meson-nand.yaml | 7 title: Amlogic NAND Flash Controller (NFC) for GXBB/GXL/AXG family SoCs
18 - amlogic,meson-gxl-nfc
19 - amlogic,meson-axg-nfc
26 - const: nfc
59 meson-gxl-nfc 8, 16, 24, 30, 40, 50, 60
60 meson-axg-nfc 8
106 compatible = "amlogic,meson-axg-nfc";
108 reg-names = "nfc", "emmc";
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| /linux/net/nfc/ |
| H A D | Kconfig | 3 # NFC subsystem configuration
6 menuconfig NFC config
8 tristate "NFC subsystem support"
11 Say Y here if you want to build support for NFC (Near field
15 be called nfc.
18 depends on NFC
21 tristate "NFC Digital Protocol stack support"
24 Say Y if you want to build NFC digital protocol stack support.
25 This is needed by NFC chipsets whose firmware only implement
26 the NFC analog layer.
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| H A D | core.c | 17 #include <linux/nfc.h>
21 #include "nfc.h"
30 /* NFC device ID bitmap */
69 * @dev: The nfc device to which firmware was downloaded
83 * nfc_dev_up - turn on the NFC device
85 * @dev: The nfc device to be turned on
133 * nfc_dev_down - turn off the NFC device
135 * @dev: The nfc device to be turned off
189 * nfc_start_poll - start polling for nfc targets
191 * @dev: The nfc device that must start polling
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| /linux/Documentation/devicetree/bindings/net/nfc/ |
| H A D | marvell,nci.yaml | 4 $id: http://devicetree.org/schemas/net/nfc/marvell,nci.yaml#
7 title: Marvell International Ltd. NCI NFC controller
15 - marvell,nfc-i2c
16 - marvell,nfc-spi
17 - marvell,nfc-uart
70 const: marvell,nfc-i2c
85 const: marvell,nfc-spi
100 const: marvell,nfc-uart
122 nfc@8 {
123 compatible = "marvell,nfc-i2c";
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| /linux/Documentation/networking/ |
| H A D | nfc.rst | 2 Linux NFC subsystem
5 The Near Field Communication (NFC) subsystem is required to standardize the
6 NFC device drivers development and to create an unified userspace interface.
14 The NFC subsystem is responsible for:
15 - NFC adapters management;
27 PF_NFC. The NFC_SOCKPROTO_RAW performs raw communication with NFC targets.
58 When registering on the NFC subsystem, the device driver must inform the core
59 of the set of supported NFC protocols and the set of ops callbacks. The ops
84 * NFC_EVENT_DEVICE_ADDED - reports an NFC device addition
85 * NFC_EVENT_DEVICE_REMOVED - reports an NFC device removal
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| /linux/drivers/nfc/st95hf/ |
| H A D | Kconfig | 3 tristate "ST95HF NFC Transceiver driver"
6 This enables the ST NFC driver for ST95HF NFC transceiver.
8 and registered with NFC digital core to support Linux NFC framework.
10 Say Y here to compile support for ST NFC transceiver ST95HF
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| /linux/include/net/nfc/ |
| H A D | nfc.h | 14 #include <linux/nfc.h>
18 #define nfc_dbg(dev, fmt, ...) dev_dbg((dev), "NFC: " fmt, ##__VA_ARGS__)
19 #define nfc_info(dev, fmt, ...) dev_info((dev), "NFC: " fmt, ##__VA_ARGS__)
20 #define nfc_err(dev, fmt, ...) dev_err((dev), "NFC: " fmt, ##__VA_ARGS__)
83 * struct nfc_target - NFC target description
87 * as described by the NFC Forum digital specification (i.e. the platform
115 * nfc_se - A structure for NFC accessible secure elements.
132 * nfc_evt_transaction - A struct for NFC secure element event transaction.
211 * nfc_free_device - free nfc device
213 * @dev: The nfc device to free
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| /linux/drivers/nfc/st-nci/ |
| H A D | Kconfig | 5 STMicroelectronics NFC NCI chips core driver. It implements the chipset
6 NCI logic and hooks into the NFC kernel APIs. Physical layers will
10 tristate "STMicroelectronics ST NCI NFC driver (I2C)"
15 STMicroelectronics NFC NCI chips family.
22 tristate "STMicroelectronics ST NCI NFC driver (SPI)"
27 STMicroelectronics NFC NCI chips family.
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| /linux/Documentation/driver-api/nfc/ |
| H A D | nfc-hci.rst | 2 HCI backend for NFC Core
12 enables easy writing of HCI-based NFC drivers. The HCI layer runs as an NFC Core
13 backend, implementing an abstract nfc device and translating NFC Core API
19 HCI registers as an nfc device with NFC Core. Requests coming from userspace are
20 routed through netlink sockets to NFC Core and then to HCI. From this point,
26 and a translation will be forwarded to NFC Core as needed. There are hooks to
100 to nfc core.
102 - target_from_gate() is an optional entrypoint to return the nfc protocols
181 The llc must be registered with nfc before it can be used. Do that by
221 Any entrypoint in HCI called from NFC Core
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| /linux/net/nfc/hci/ |
| H A D | Kconfig | 3 depends on NFC
4 tristate "NFC HCI implementation"
7 Say Y here if you want to build support for a kernel NFC HCI
14 bool "SHDLC link layer for HCI based NFC drivers"
17 Say yes if you use an NFC HCI driver that requires SHDLC link layer.
|