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/Linux-v5.10/drivers/misc/eeprom/
Deeprom_93cx6.c7 * Abstract: EEPROM reader routines for 93cx6 chipsets.
18 MODULE_DESCRIPTION("EEPROM 93cx6 chip driver");
21 static inline void eeprom_93cx6_pulse_high(struct eeprom_93cx6 *eeprom) in eeprom_93cx6_pulse_high() argument
23 eeprom->reg_data_clock = 1; in eeprom_93cx6_pulse_high()
24 eeprom->register_write(eeprom); in eeprom_93cx6_pulse_high()
34 static inline void eeprom_93cx6_pulse_low(struct eeprom_93cx6 *eeprom) in eeprom_93cx6_pulse_low() argument
36 eeprom->reg_data_clock = 0; in eeprom_93cx6_pulse_low()
37 eeprom->register_write(eeprom); in eeprom_93cx6_pulse_low()
47 static void eeprom_93cx6_startup(struct eeprom_93cx6 *eeprom) in eeprom_93cx6_startup() argument
52 eeprom->register_read(eeprom); in eeprom_93cx6_startup()
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DKconfig2 menu "EEPROM support"
41 after you configure the board init code to know about each eeprom
48 tristate "Old I2C EEPROM reader (DEPRECATED)"
51 If you say yes here you get read-only access to the EEPROM data
59 will be called eeprom.
65 If you say yes here you get read-only support for the user EEPROM of
66 the Maxim MAX6874/5 EEPROM-programmable, quad power-supply
76 tristate "EEPROM 93CX6 support"
78 This is a driver for the EEPROM chipsets 93c46 and 93c66.
84 tristate "Microwire EEPROM 93XX46 support"
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/Linux-v5.10/drivers/nvmem/
Dlpc18xx_eeprom.c3 * NXP LPC18xx/LPC43xx EEPROM memory NVMEM driver
38 /* EEPROM device requires a ~1500 kHz clock (min 800 kHz, max 1600 kHz) */
41 /* EEPROM requires 3 ms of erase/program time between each writing */
54 static inline void lpc18xx_eeprom_writel(struct lpc18xx_eeprom_dev *eeprom, in lpc18xx_eeprom_writel() argument
57 writel(val, eeprom->reg_base + reg); in lpc18xx_eeprom_writel()
60 static inline u32 lpc18xx_eeprom_readl(struct lpc18xx_eeprom_dev *eeprom, in lpc18xx_eeprom_readl() argument
63 return readl(eeprom->reg_base + reg); in lpc18xx_eeprom_readl()
66 static int lpc18xx_eeprom_busywait_until_prog(struct lpc18xx_eeprom_dev *eeprom) in lpc18xx_eeprom_busywait_until_prog() argument
71 /* Wait until EEPROM program operation has finished */ in lpc18xx_eeprom_busywait_until_prog()
75 val = lpc18xx_eeprom_readl(eeprom, LPC18XX_EEPROM_INTSTAT); in lpc18xx_eeprom_busywait_until_prog()
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Drave-sp-eeprom.c4 * EEPROM driver for RAVE SP
18 * enum rave_sp_eeprom_access_type - Supported types of EEPROM access
20 * @RAVE_SP_EEPROM_WRITE: EEPROM write
21 * @RAVE_SP_EEPROM_READ: EEPROM read
29 * enum rave_sp_eeprom_header_size - EEPROM command header sizes
31 * @RAVE_SP_EEPROM_HEADER_SMALL: EEPROM header size for "small" devices (< 8K)
32 * @RAVE_SP_EEPROM_HEADER_BIG: EEPROM header size for "big" devices (> 8K)
43 * struct rave_sp_eeprom_page - RAVE SP EEPROM page
59 * struct rave_sp_eeprom - RAVE SP EEPROM device
62 * @mutex: Lock protecting access to EEPROM
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/Linux-v5.10/drivers/i2c/
Di2c-slave-eeprom.c3 * I2C slave mode EEPROM simulator
9 * this driver does not support simulating EEPROM types which take more than
48 struct eeprom_data *eeprom = i2c_get_clientdata(client); in i2c_slave_eeprom_slave_cb() local
52 if (eeprom->idx_write_cnt < eeprom->num_address_bytes) { in i2c_slave_eeprom_slave_cb()
53 if (eeprom->idx_write_cnt == 0) in i2c_slave_eeprom_slave_cb()
54 eeprom->buffer_idx = 0; in i2c_slave_eeprom_slave_cb()
55 eeprom->buffer_idx = *val | (eeprom->buffer_idx << 8); in i2c_slave_eeprom_slave_cb()
56 eeprom->idx_write_cnt++; in i2c_slave_eeprom_slave_cb()
58 if (!eeprom->read_only) { in i2c_slave_eeprom_slave_cb()
59 spin_lock(&eeprom->buffer_lock); in i2c_slave_eeprom_slave_cb()
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/Linux-v5.10/drivers/net/wireless/mediatek/mt7601u/
Deeprom.c13 #include "eeprom.h"
51 /* Parts of eeprom not in the usage map (0x80-0xc0,0xf0) in mt7601u_efuse_read()
90 …dev_err(dev->dev, "Error: your device needs default EEPROM file and this driver doesn't support it… in mt7601u_efuse_physical_size_check()
98 mt7601u_has_tssi(struct mt7601u_dev *dev, u8 *eeprom) in mt7601u_has_tssi() argument
100 u16 nic_conf1 = get_unaligned_le16(eeprom + MT_EE_NIC_CONF_1); in mt7601u_has_tssi()
106 mt7601u_set_chip_cap(struct mt7601u_dev *dev, u8 *eeprom) in mt7601u_set_chip_cap() argument
108 u16 nic_conf0 = get_unaligned_le16(eeprom + MT_EE_NIC_CONF_0); in mt7601u_set_chip_cap()
109 u16 nic_conf1 = get_unaligned_le16(eeprom + MT_EE_NIC_CONF_1); in mt7601u_set_chip_cap()
114 dev->ee->tssi_enabled = mt7601u_has_tssi(dev, eeprom) && in mt7601u_set_chip_cap()
131 u8 *eeprom, u8 max_pwr) in mt7601u_set_channel_target_power() argument
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/Linux-v5.10/drivers/media/usb/pvrusb2/
Dpvrusb2-eeprom.c9 #include "pvrusb2-eeprom.h"
19 Read and analyze data in the eeprom. Use tveeprom to figure out
27 /* We seem to only be interested in the last 128 bytes of the EEPROM */
30 /* Grab EEPROM contents, needed for direct method. */
34 u8 *eeprom; in pvr2_eeprom_fetch() local
42 eeprom = kzalloc(EEPROM_SIZE, GFP_KERNEL); in pvr2_eeprom_fetch()
43 if (!eeprom) { in pvr2_eeprom_fetch()
45 "Failed to allocate memory required to read eeprom"); in pvr2_eeprom_fetch()
49 trace_eeprom("Value for eeprom addr from controller was 0x%x", in pvr2_eeprom_fetch()
52 /* Seems that if the high bit is set, then the *real* eeprom in pvr2_eeprom_fetch()
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/Linux-v5.10/include/linux/
Deeprom_93cx6.h10 Abstract: EEPROM reader datastructures for 93cx6 chipsets.
15 * EEPROM operation defines.
30 * for reading the eeprom data.
32 * @register_read(struct eeprom_93cx6 *eeprom): handler to
33 * read the eeprom register, this function should set all reg_* fields.
34 * @register_write(struct eeprom_93cx6 *eeprom): handler to
35 * write to the eeprom register by using all reg_* fields.
36 * @width: eeprom width, should be one of the PCI_EEPROM_WIDTH_* defines
44 * and the eeprom_93cx6 handlers for reading the eeprom.
49 void (*register_read)(struct eeprom_93cx6 *eeprom);
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/Linux-v5.10/drivers/net/ethernet/intel/e1000e/
Dnvm.c7 * e1000_raise_eec_clk - Raise EEPROM clock
9 * @eecd: pointer to the EEPROM
11 * Enable/Raise the EEPROM clock bit.
22 * e1000_lower_eec_clk - Lower EEPROM clock
24 * @eecd: pointer to the EEPROM
26 * Clear/Lower the EEPROM clock bit.
37 * e1000_shift_out_eec_bits - Shift data bits our to the EEPROM
39 * @data: data to send to the EEPROM
42 * We need to shift 'count' bits out to the EEPROM. So, the value in the
43 * "data" parameter will be shifted out to the EEPROM one bit at a time.
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/Linux-v5.10/drivers/net/ethernet/intel/ixgb/
Dixgb_ee.c21 * Raises the EEPROM's clock input.
30 /* Raise the clock input to the EEPROM (by setting the SK bit), and then in ixgb_raise_clock()
40 * Lowers the EEPROM's clock input.
49 /* Lower the clock input to the EEPROM (by clearing the SK bit), and then in ixgb_lower_clock()
59 * Shift data bits out to the EEPROM.
62 * data - data to send to the EEPROM
73 /* We need to shift "count" bits out to the EEPROM. So, value in the in ixgb_shift_out_bits()
74 * "data" parameter will be shifted out to the EEPROM one bit at a time. in ixgb_shift_out_bits()
81 /* A "1" is shifted out to the EEPROM by setting bit "DI" to a "1", in ixgb_shift_out_bits()
83 * the clock input to the EEPROM). A "0" is shifted out to the EEPROM in ixgb_shift_out_bits()
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Dixgb_ee.h9 /* EEPROM Commands */
10 #define EEPROM_READ_OPCODE 0x6 /* EEPROM read opcode */
11 #define EEPROM_WRITE_OPCODE 0x5 /* EEPROM write opcode */
12 #define EEPROM_ERASE_OPCODE 0x7 /* EEPROM erase opcode */
13 #define EEPROM_EWEN_OPCODE 0x13 /* EEPROM erase/write enable */
14 #define EEPROM_EWDS_OPCODE 0x10 /* EEPROM erase/write disable */
16 /* EEPROM MAP (Word Offsets) */
35 /* Mask bits for fields in Word 0x0a of the EEPROM */
41 /* For checksumming, the sum of all words in the EEPROM should equal 0xBABA. */
44 /* EEPROM Map Sizes (Byte Counts) */
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Dixgb_ethtool.c350 struct ethtool_eeprom *eeprom, u8 *bytes) in ixgb_get_eeprom() argument
358 if (eeprom->len == 0) { in ixgb_get_eeprom()
363 eeprom->magic = hw->vendor_id | (hw->device_id << 16); in ixgb_get_eeprom()
367 if (eeprom->offset > eeprom->offset + eeprom->len) { in ixgb_get_eeprom()
372 if ((eeprom->offset + eeprom->len) > max_len) in ixgb_get_eeprom()
373 eeprom->len = (max_len - eeprom->offset); in ixgb_get_eeprom()
375 first_word = eeprom->offset >> 1; in ixgb_get_eeprom()
376 last_word = (eeprom->offset + eeprom->len - 1) >> 1; in ixgb_get_eeprom()
384 /* note the eeprom was good because the driver loaded */ in ixgb_get_eeprom()
388 memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len); in ixgb_get_eeprom()
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/Linux-v5.10/Documentation/devicetree/bindings/nvmem/
Dlpc1857-eeprom.txt1 * NXP LPC18xx EEPROM memory NVMEM driver
4 - compatible: Should be "nxp,lpc1857-eeprom"
8 - reg: EEPROM registers.
9 - mem: EEPROM address space.
12 - eeprom: EEPROM operating clock.
14 the EEPROM in reset.
15 - interrupts: Should contain EEPROM interrupt.
19 eeprom: eeprom@4000e000 {
20 compatible = "nxp,lpc1857-eeprom";
25 clock-names = "eeprom";
Dzii,rave-sp-eeprom.txt1 Zodiac Inflight Innovations RAVE EEPROM Bindings
3 RAVE SP EEPROM device is a "MFD cell" device exposing physical EEPROM
11 - compatible: Should be "zii,rave-sp-eeprom"
15 - zii,eeprom-name: Unique EEPROM identifier describing its function in the
29 eeprom@a4 {
30 compatible = "zii,rave-sp-eeprom";
34 zii,eeprom-name = "main-eeprom";
/Linux-v5.10/drivers/net/ethernet/intel/igc/
Digc_nvm.c8 * igc_poll_eerd_eewr_done - Poll for EEPROM read/write completion
10 * @ee_reg: EEPROM flag for polling
12 * Polls the EEPROM status bit for either read or write completion based
39 * igc_acquire_nvm - Generic request for access to EEPROM
42 * Set the EEPROM access request bit and wait for EEPROM access grant bit.
44 * EEPROM access and return -IGC_ERR_NVM (-1).
74 * igc_release_nvm - Release exclusive access to EEPROM
77 * Stop any current commands to the EEPROM and clear the EEPROM request bit.
89 * igc_read_nvm_eerd - Reads EEPROM using EERD register
91 * @offset: offset of word in the EEPROM to read
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/Linux-v5.10/drivers/net/ethernet/intel/igb/
De1000_nvm.c11 * igb_raise_eec_clk - Raise EEPROM clock
13 * @eecd: pointer to the EEPROM
15 * Enable/Raise the EEPROM clock bit.
26 * igb_lower_eec_clk - Lower EEPROM clock
28 * @eecd: pointer to the EEPROM
30 * Clear/Lower the EEPROM clock bit.
41 * igb_shift_out_eec_bits - Shift data bits our to the EEPROM
43 * @data: data to send to the EEPROM
46 * We need to shift 'count' bits out to the EEPROM. So, the value in the
47 * "data" parameter will be shifted out to the EEPROM one bit at a time.
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/Linux-v5.10/drivers/staging/vt6655/
Dsrom.c8 * Purpose:Implement functions to access eeprom
15 * SROMbyReadEmbedded - Embedded read eeprom via MAC
16 * SROMbWriteEmbedded - Embedded write eeprom via MAC
17 * SROMvRegBitsOn - Set Bits On in eeprom
18 * SROMvRegBitsOff - Clear Bits Off in eeprom
19 * SROMbIsRegBitsOn - Test if Bits On in eeprom
20 * SROMbIsRegBitsOff - Test if Bits Off in eeprom
21 * SROMvReadAllContents - Read all contents in eeprom
22 * SROMvWriteAllContents - Write all contents in eeprom
23 * SROMvReadEtherAddress - Read Ethernet Address in eeprom
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/Linux-v5.10/drivers/net/ethernet/intel/ixgbe/
Dixgbe_x540.c181 * ixgbe_init_eeprom_params_X540 - Initialize EEPROM params
184 * Initializes the EEPROM parameters ixgbe_eeprom_info within the
185 * ixgbe_hw struct in order to set up EEPROM access.
189 struct ixgbe_eeprom_info *eeprom = &hw->eeprom; in ixgbe_init_eeprom_params_X540() local
193 if (eeprom->type == ixgbe_eeprom_uninitialized) { in ixgbe_init_eeprom_params_X540()
194 eeprom->semaphore_delay = 10; in ixgbe_init_eeprom_params_X540()
195 eeprom->type = ixgbe_flash; in ixgbe_init_eeprom_params_X540()
200 eeprom->word_size = BIT(eeprom_size + in ixgbe_init_eeprom_params_X540()
203 hw_dbg(hw, "Eeprom params: type = %d, size = %d\n", in ixgbe_init_eeprom_params_X540()
204 eeprom->type, eeprom->word_size); in ixgbe_init_eeprom_params_X540()
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Dixgbe_common.c130 * 10gig parts do not have a word in the EEPROM to determine the in ixgbe_setup_fc_generic()
484 * ixgbe_read_pba_string_generic - Reads part number string from EEPROM
486 * @pba_num: stores the part number string from the EEPROM
489 * Reads the part number string from the EEPROM.
505 ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM0_PTR, &data); in ixgbe_read_pba_string_generic()
511 ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM1_PTR, &pba_ptr); in ixgbe_read_pba_string_generic()
557 ret_val = hw->eeprom.ops.read(hw, pba_ptr, &length); in ixgbe_read_pba_string_generic()
579 ret_val = hw->eeprom.ops.read(hw, pba_ptr + offset, &data); in ixgbe_read_pba_string_generic()
599 * in order for the MAC address to have been loaded from the EEPROM into RAR0
694 /* Get MAC instance from EEPROM for configuring CS4227 */ in ixgbe_set_lan_id_multi_port_pcie()
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/Linux-v5.10/drivers/net/wireless/intel/iwlwifi/
Diwl-eeprom-parse.c66 #include "iwl-eeprom-parse.h"
68 /* EEPROM offset definitions */
83 /* corresponding link offsets in EEPROM */
119 /* SKU Capabilities (actual values from EEPROM definition) */
128 /* radio config bits (actual values from EEPROM definition) */
138 * EEPROM bands
140 * that they are stored in the EEPROM band information. Note
141 * that EEPROM bands aren't the same as mac80211 bands, and
142 * there are even special "ht40 bands" in the EEPROM.
201 /* EEPROM reading functions */
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/Linux-v5.10/drivers/net/wireless/ralink/rt2x00/
Drt2800pci.c79 static void rt2800pci_eepromregister_read(struct eeprom_93cx6 *eeprom) in rt2800pci_eepromregister_read() argument
81 struct rt2x00_dev *rt2x00dev = eeprom->data; in rt2800pci_eepromregister_read()
86 eeprom->reg_data_in = !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_IN); in rt2800pci_eepromregister_read()
87 eeprom->reg_data_out = !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_OUT); in rt2800pci_eepromregister_read()
88 eeprom->reg_data_clock = in rt2800pci_eepromregister_read()
90 eeprom->reg_chip_select = in rt2800pci_eepromregister_read()
94 static void rt2800pci_eepromregister_write(struct eeprom_93cx6 *eeprom) in rt2800pci_eepromregister_write() argument
96 struct rt2x00_dev *rt2x00dev = eeprom->data; in rt2800pci_eepromregister_write()
99 rt2x00_set_field32(&reg, E2PROM_CSR_DATA_IN, !!eeprom->reg_data_in); in rt2800pci_eepromregister_write()
100 rt2x00_set_field32(&reg, E2PROM_CSR_DATA_OUT, !!eeprom->reg_data_out); in rt2800pci_eepromregister_write()
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/Linux-v5.10/drivers/net/wireless/mediatek/mt76/mt7603/
Deeprom.c5 #include "eeprom.h"
105 u8 *eeprom = dev->mt76.eeprom.data; in mt7603_apply_cal_free_data() local
109 if (!np || !of_property_read_bool(np, "mediatek,eeprom-merge-otp")) in mt7603_apply_cal_free_data()
121 eeprom[offset] = efuse[offset]; in mt7603_apply_cal_free_data()
139 u16 val = get_unaligned_le16(dev->eeprom.data); in mt7603_check_eeprom()
157 u8 *eeprom; in mt7603_eeprom_init() local
168 memcpy(dev->mt76.eeprom.data, dev->mt76.otp.data, in mt7603_eeprom_init()
172 eeprom = (u8 *)dev->mt76.eeprom.data; in mt7603_eeprom_init()
174 memcpy(dev->mt76.macaddr, eeprom + MT_EE_MAC_ADDR, ETH_ALEN); in mt7603_eeprom_init()
178 if (FIELD_GET(MT_EE_NIC_CONF_0_RX_PATH, eeprom[MT_EE_NIC_CONF_0]) == 1 || in mt7603_eeprom_init()
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/Linux-v5.10/drivers/net/wireless/mediatek/mt76/mt7615/
Deeprom.c10 #include "eeprom.h"
84 u16 val = get_unaligned_le16(dev->eeprom.data); in mt7615_check_eeprom()
98 u8 val, *eeprom = dev->mt76.eeprom.data; in mt7615_eeprom_parse_hw_band_cap() local
120 eeprom[MT_EE_WIFI_CONF]); in mt7615_eeprom_parse_hw_band_cap()
140 u8 *eeprom = dev->mt76.eeprom.data; in mt7615_eeprom_parse_hw_cap() local
148 eeprom[MT7663_EE_HW_CONF1]); in mt7615_eeprom_parse_hw_cap()
152 /* read tx-rx mask from eeprom */ in mt7615_eeprom_parse_hw_cap()
157 eeprom[MT_EE_NIC_CONF_0]); in mt7615_eeprom_parse_hw_cap()
271 u8 *eeprom = dev->mt76.eeprom.data; in mt7615_apply_cal_free_data() local
283 eeprom[ical[i]] = otp[ical[i]]; in mt7615_apply_cal_free_data()
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/Linux-v5.10/arch/mips/txx9/generic/
Dspi_eeprom.c17 #include <linux/spi/eeprom.h>
32 struct spi_eeprom *eeprom; in spi_eeprom_register() local
33 eeprom = kzalloc(sizeof(*eeprom), GFP_KERNEL); in spi_eeprom_register()
34 if (!eeprom) in spi_eeprom_register()
36 strcpy(eeprom->name, "at250x0"); in spi_eeprom_register()
37 eeprom->byte_len = size; in spi_eeprom_register()
38 eeprom->page_size = AT250X0_PAGE_SIZE; in spi_eeprom_register()
39 eeprom->flags = EE_ADDR1; in spi_eeprom_register()
40 info.platform_data = eeprom; in spi_eeprom_register()
/Linux-v5.10/drivers/net/ethernet/atheros/atl1e/
Datl1e_ethtool.c205 struct ethtool_eeprom *eeprom, u8 *bytes) in atl1e_get_eeprom() argument
214 if (eeprom->len == 0) in atl1e_get_eeprom()
220 eeprom->magic = hw->vendor_id | (hw->device_id << 16); in atl1e_get_eeprom()
222 first_dword = eeprom->offset >> 2; in atl1e_get_eeprom()
223 last_dword = (eeprom->offset + eeprom->len - 1) >> 2; in atl1e_get_eeprom()
237 memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 3), in atl1e_get_eeprom()
238 eeprom->len); in atl1e_get_eeprom()
245 struct ethtool_eeprom *eeprom, u8 *bytes) in atl1e_set_eeprom() argument
255 if (eeprom->len == 0) in atl1e_set_eeprom()
258 if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16))) in atl1e_set_eeprom()
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12345678910>>...51