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-rw-r--r--Kconfig54logplain
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-rw-r--r--dca-core.c11284logplain
-rw-r--r--dca-sysfs.c2687logplain
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w); eecd = er32(EECD); eecd &= ~E1000_EECD_REQ; ew32(EECD, eecd); } /** * e1000_ready_nvm_eeprom - Prepares EEPROM for read/write * @hw: pointer to the HW structure * * Setups the EEPROM for reading and writing. **/ static s32 e1000_ready_nvm_eeprom(struct e1000_hw *hw) { struct e1000_nvm_info *nvm = &hw->nvm; u32 eecd = er32(EECD); u8 spi_stat_reg; if (nvm->type == e1000_nvm_eeprom_spi) { u16 timeout = NVM_MAX_RETRY_SPI; /* Clear SK and CS */ eecd &= ~(E1000_EECD_CS | E1000_EECD_SK); ew32(EECD, eecd); e1e_flush(); udelay(1); /* Read "Status Register" repeatedly until the LSB is cleared. * The EEPROM will signal that the command has been completed * by clearing bit 0 of the internal status register. If it's * not cleared within 'timeout', then error out. */ while (timeout) { e1000_shift_out_eec_bits(hw, NVM_RDSR_OPCODE_SPI, hw->nvm.opcode_bits); spi_stat_reg = (u8)e1000_shift_in_eec_bits(hw, 8); if (!(spi_stat_reg & NVM_STATUS_RDY_SPI)) break; udelay(5); e1000_standby_nvm(hw); timeout--; } if (!timeout) { e_dbg("SPI NVM Status error\n"); return -E1000_ERR_NVM; } } return 0; } /** * e1000e_read_nvm_eerd - Reads EEPROM using EERD register * @hw: pointer to the HW structure * @offset: offset of word in the EEPROM to read * @words: number of words to read * @data: word read from the EEPROM * * Reads a 16 bit word from the EEPROM using the EERD register. **/ s32 e1000e_read_nvm_eerd(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) { struct e1000_nvm_info *nvm = &hw->nvm; u32 i, eerd = 0; s32 ret_val = 0; /* A check for invalid values: offset too large, too many words, * too many words for the offset, and not enough words. */ if ((offset >= nvm->word_size) || (words > (nvm->word_size - offset)) || (words == 0)) { e_dbg("nvm parameter(s) out of bounds\n"); return -E1000_ERR_NVM; } for (i = 0; i < words; i++) { eerd = ((offset + i) << E1000_NVM_RW_ADDR_SHIFT) + E1000_NVM_RW_REG_START; ew32(EERD, eerd); ret_val = e1000e_poll_eerd_eewr_done(hw, E1000_NVM_POLL_READ); if (ret_val) { e_dbg("NVM read error: %d\n", ret_val); break; } data[i] = (er32(EERD) >> E1000_NVM_RW_REG_DATA); } return ret_val; } /** * e1000e_write_nvm_spi - Write to EEPROM using SPI * @hw: pointer to the HW structure * @offset: offset within the EEPROM to be written to * @words: number of words to write * @data: 16 bit word(s) to be written to the EEPROM * * Writes data to EEPROM at offset using SPI interface. * * If e1000e_update_nvm_checksum is not called after this function , the * EEPROM w