+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-/*******************************************************************************
-
- Intel(R) Gigabit Ethernet Linux driver
- Copyright(c) 2007-2013 Intel Corporation.
-
- Contact Information:
- e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
- Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
-
-*******************************************************************************/
-
-#include "e1000_api.h"
-
-static void e1000_reload_nvm_generic(struct e1000_hw *hw);
-
-/**
- * e1000_init_nvm_ops_generic - Initialize NVM function pointers
- * @hw: pointer to the HW structure
- *
- * Setups up the function pointers to no-op functions
- **/
-void e1000_init_nvm_ops_generic(struct e1000_hw *hw)
-{
- struct e1000_nvm_info *nvm = &hw->nvm;
- DEBUGFUNC("e1000_init_nvm_ops_generic");
-
- /* Initialize function pointers */
- nvm->ops.init_params = e1000_null_ops_generic;
- nvm->ops.acquire = e1000_null_ops_generic;
- nvm->ops.read = e1000_null_read_nvm;
- nvm->ops.release = e1000_null_nvm_generic;
- nvm->ops.reload = e1000_reload_nvm_generic;
- nvm->ops.update = e1000_null_ops_generic;
- nvm->ops.valid_led_default = e1000_null_led_default;
- nvm->ops.validate = e1000_null_ops_generic;
- nvm->ops.write = e1000_null_write_nvm;
-}
-
-/**
- * e1000_null_nvm_read - No-op function, return 0
- * @hw: pointer to the HW structure
- **/
-s32 e1000_null_read_nvm(struct e1000_hw E1000_UNUSEDARG *hw,
- u16 E1000_UNUSEDARG a, u16 E1000_UNUSEDARG b,
- u16 E1000_UNUSEDARG *c)
-{
- DEBUGFUNC("e1000_null_read_nvm");
- return E1000_SUCCESS;
-}
-
-/**
- * e1000_null_nvm_generic - No-op function, return void
- * @hw: pointer to the HW structure
- **/
-void e1000_null_nvm_generic(struct e1000_hw E1000_UNUSEDARG *hw)
-{
- DEBUGFUNC("e1000_null_nvm_generic");
- return;
-}
-
-/**
- * e1000_null_led_default - No-op function, return 0
- * @hw: pointer to the HW structure
- **/
-s32 e1000_null_led_default(struct e1000_hw E1000_UNUSEDARG *hw,
- u16 E1000_UNUSEDARG *data)
-{
- DEBUGFUNC("e1000_null_led_default");
- return E1000_SUCCESS;
-}
-
-/**
- * e1000_null_write_nvm - No-op function, return 0
- * @hw: pointer to the HW structure
- **/
-s32 e1000_null_write_nvm(struct e1000_hw E1000_UNUSEDARG *hw,
- u16 E1000_UNUSEDARG a, u16 E1000_UNUSEDARG b,
- u16 E1000_UNUSEDARG *c)
-{
- DEBUGFUNC("e1000_null_write_nvm");
- return E1000_SUCCESS;
-}
-
-/**
- * e1000_raise_eec_clk - Raise EEPROM clock
- * @hw: pointer to the HW structure
- * @eecd: pointer to the EEPROM
- *
- * Enable/Raise the EEPROM clock bit.
- **/
-static void e1000_raise_eec_clk(struct e1000_hw *hw, u32 *eecd)
-{
- *eecd = *eecd | E1000_EECD_SK;
- E1000_WRITE_REG(hw, E1000_EECD, *eecd);
- E1000_WRITE_FLUSH(hw);
- usec_delay(hw->nvm.delay_usec);
-}
-
-/**
- * e1000_lower_eec_clk - Lower EEPROM clock
- * @hw: pointer to the HW structure
- * @eecd: pointer to the EEPROM
- *
- * Clear/Lower the EEPROM clock bit.
- **/
-static void e1000_lower_eec_clk(struct e1000_hw *hw, u32 *eecd)
-{
- *eecd = *eecd & ~E1000_EECD_SK;
- E1000_WRITE_REG(hw, E1000_EECD, *eecd);
- E1000_WRITE_FLUSH(hw);
- usec_delay(hw->nvm.delay_usec);
-}
-
-/**
- * e1000_shift_out_eec_bits - Shift data bits our to the EEPROM
- * @hw: pointer to the HW structure
- * @data: data to send to the EEPROM
- * @count: number of bits to shift out
- *
- * We need to shift 'count' bits out to the EEPROM. So, the value in the
- * "data" parameter will be shifted out to the EEPROM one bit at a time.
- * In order to do this, "data" must be broken down into bits.
- **/
-static void e1000_shift_out_eec_bits(struct e1000_hw *hw, u16 data, u16 count)
-{
- struct e1000_nvm_info *nvm = &hw->nvm;
- u32 eecd = E1000_READ_REG(hw, E1000_EECD);
- u32 mask;
-
- DEBUGFUNC("e1000_shift_out_eec_bits");
-
- mask = 0x01 << (count - 1);
- if (nvm->type == e1000_nvm_eeprom_spi)
- eecd |= E1000_EECD_DO;
-
- do {
- eecd &= ~E1000_EECD_DI;
-
- if (data & mask)
- eecd |= E1000_EECD_DI;
-
- E1000_WRITE_REG(hw, E1000_EECD, eecd);
- E1000_WRITE_FLUSH(hw);
-
- usec_delay(nvm->delay_usec);
-
- e1000_raise_eec_clk(hw, &eecd);
- e1000_lower_eec_clk(hw, &eecd);
-
- mask >>= 1;
- } while (mask);
-
- eecd &= ~E1000_EECD_DI;
- E1000_WRITE_REG(hw, E1000_EECD, eecd);
-}
-
-/**
- * e1000_shift_in_eec_bits - Shift data bits in from the EEPROM
- * @hw: pointer to the HW structure
- * @count: number of bits to shift in
- *
- * In order to read a register from the EEPROM, we need to shift 'count' bits
- * in from the EEPROM. Bits are "shifted in" by raising the clock input to
- * the EEPROM (setting the SK bit), and then reading the value of the data out
- * "DO" bit. During this "shifting in" process the data in "DI" bit should
- * always be clear.
- **/
-static u16 e1000_shift_in_eec_bits(struct e1000_hw *hw, u16 count)
-{
- u32 eecd;
- u32 i;
- u16 data;
-
- DEBUGFUNC("e1000_shift_in_eec_bits");
-
- eecd = E1000_READ_REG(hw, E1000_EECD);
-
- eecd &= ~(E1000_EECD_DO | E1000_EECD_DI);
- data = 0;
-
- for (i = 0; i < count; i++) {
- data <<= 1;
- e1000_raise_eec_clk(hw, &eecd);
-
- eecd = E1000_READ_REG(hw, E1000_EECD);
-
- eecd &= ~E1000_EECD_DI;
- if (eecd & E1000_EECD_DO)
- data |= 1;
-
- e1000_lower_eec_clk(hw, &eecd);
- }
-
- return data;
-}
-
-/**
- * e1000_poll_eerd_eewr_done - Poll for EEPROM read/write completion
- * @hw: pointer to the HW structure
- * @ee_reg: EEPROM flag for polling
- *
- * Polls the EEPROM status bit for either read or write completion based
- * upon the value of 'ee_reg'.
- **/
-s32 e1000_poll_eerd_eewr_done(struct e1000_hw *hw, int ee_reg)
-{
- u32 attempts = 100000;
- u32 i, reg = 0;
-
- DEBUGFUNC("e1000_poll_eerd_eewr_done");
-
- for (i = 0; i < attempts; i++) {
- if (ee_reg == E1000_NVM_POLL_READ)
- reg = E1000_READ_REG(hw, E1000_EERD);
- else
- reg = E1000_READ_REG(hw, E1000_EEWR);
-
- if (reg & E1000_NVM_RW_REG_DONE)
- return E1000_SUCCESS;
-
- usec_delay(5);
- }
-
- return -E1000_ERR_NVM;
-}
-
-/**
- * e1000_acquire_nvm_generic - Generic request for access to EEPROM
- * @hw: pointer to the HW structure
- *
- * Set the EEPROM access request bit and wait for EEPROM access grant bit.
- * Return successful if access grant bit set, else clear the request for
- * EEPROM access and return -E1000_ERR_NVM (-1).
- **/
-s32 e1000_acquire_nvm_generic(struct e1000_hw *hw)
-{
- u32 eecd = E1000_READ_REG(hw, E1000_EECD);
- s32 timeout = E1000_NVM_GRANT_ATTEMPTS;
-
- DEBUGFUNC("e1000_acquire_nvm_generic");
-
- E1000_WRITE_REG(hw, E1000_EECD, eecd | E1000_EECD_REQ);
- eecd = E1000_READ_REG(hw, E1000_EECD);
-
- while (timeout) {
- if (eecd & E1000_EECD_GNT)
- break;
- usec_delay(5);
- eecd = E1000_READ_REG(hw, E1000_EECD);
- timeout--;
- }
-
- if (!timeout) {
- eecd &= ~E1000_EECD_REQ;
- E1000_WRITE_REG(hw, E1000_EECD, eecd);
- DEBUGOUT("Could not acquire NVM grant\n");
- return -E1000_ERR_NVM;
- }
-
- return E1000_SUCCESS;
-}
-
-/**
- * e1000_standby_nvm - Return EEPROM to standby state
- * @hw: pointer to the HW structure
- *
- * Return the EEPROM to a standby state.
- **/
-static void e1000_standby_nvm(struct e1000_hw *hw)
-{
- struct e1000_nvm_info *nvm = &hw->nvm;
- u32 eecd = E1000_READ_REG(hw, E1000_EECD);
-
- DEBUGFUNC("e1000_standby_nvm");
-
- if (nvm->type == e1000_nvm_eeprom_spi) {
- /* Toggle CS to flush commands */
- eecd |= E1000_EECD_CS;
- E1000_WRITE_REG(hw, E1000_EECD, eecd);
- E1000_WRITE_FLUSH(hw);
- usec_delay(nvm->delay_usec);
- eecd &= ~E1000_EECD_CS;
- E1000_WRITE_REG(hw, E1000_EECD, eecd);
- E1000_WRITE_FLUSH(hw);
- usec_delay(nvm->delay_usec);
- }
-}
-
-/**
- * e1000_stop_nvm - Terminate EEPROM command
- * @hw: pointer to the HW structure
- *
- * Terminates the current command by inverting the EEPROM's chip select pin.
- **/
-static void e1000_stop_nvm(struct e1000_hw *hw)
-{
- u32 eecd;
-
- DEBUGFUNC("e1000_stop_nvm");
-
- eecd = E1000_READ_REG(hw, E1000_EECD);
- if (hw->nvm.type == e1000_nvm_eeprom_spi) {
- /* Pull CS high */
- eecd |= E1000_EECD_CS;
- e1000_lower_eec_clk(hw, &eecd);
- }
-}
-
-/**
- * e1000_release_nvm_generic - Release exclusive access to EEPROM
- * @hw: pointer to the HW structure
- *
- * Stop any current commands to the EEPROM and clear the EEPROM request bit.
- **/
-void e1000_release_nvm_generic(struct e1000_hw *hw)
-{
- u32 eecd;
-
- DEBUGFUNC("e1000_release_nvm_generic");
-
- e1000_stop_nvm(hw);
-
- eecd = E1000_READ_REG(hw, E1000_EECD);
- eecd &= ~E1000_EECD_REQ;
- E1000_WRITE_REG(hw, E1000_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 = E1000_READ_REG(hw, E1000_EECD);
- u8 spi_stat_reg;
-
- DEBUGFUNC("e1000_ready_nvm_eeprom");
-
- if (nvm->type == e1000_nvm_eeprom_spi) {
- u16 timeout = NVM_MAX_RETRY_SPI;
-
- /* Clear SK and CS */
- eecd &= ~(E1000_EECD_CS | E1000_EECD_SK);
- E1000_WRITE_REG(hw, E1000_EECD, eecd);
- E1000_WRITE_FLUSH(hw);
- usec_delay(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;
-
- usec_delay(5);
- e1000_standby_nvm(hw);
- timeout--;
- }
-
- if (!timeout) {
- DEBUGOUT("SPI NVM Status error\n");
- return -E1000_ERR_NVM;
- }
- }
-
- return E1000_SUCCESS;
-}
-
-/**
- * e1000_read_nvm_spi - Read EEPROM's using SPI
- * @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.
- **/
-s32 e1000_read_nvm_spi(struct e1000_hw *hw, u16 offset, u16 words, u16 *data)
-{
- struct e1000_nvm_info *nvm = &hw->nvm;
- u32 i = 0;
- s32 ret_val;
- u16 word_in;
- u8 read_opcode = NVM_READ_OPCODE_SPI;
-
- DEBUGFUNC("e1000_read_nvm_spi");
-
- /* A check for invalid values: offset too large, too many words,
- * and not enough words.
- */
- if ((offset >= nvm->word_size) || (words > (nvm->word_size - offset)) ||
- (words == 0)) {
- DEBUGOUT("nvm parameter(s) out of bounds\n");
- return -E1000_ERR_NVM;
- }
-
- ret_val = nvm->ops.acquire(hw);
- if (ret_val)
- return ret_val;
-
- ret_val = e1000_ready_nvm_eeprom(hw);
- if (ret_val)
- goto release;
-
- e1000_standby_nvm(hw);
-
- if ((nvm->address_bits == 8) && (offset >= 128))
- read_opcode |= NVM_A8_OPCODE_SPI;
-
- /* Send the READ command (opcode + addr) */
- e1000_shift_out_eec_bits(hw, read_opcode, nvm->opcode_bits);
- e1000_shift_out_eec_bits(hw, (u16)(offset*2), nvm->address_bits);
-
- /* Read the data. SPI NVMs increment the address with each byte
- * read and will roll over if reading beyond the end. This allows
- * us to read the whole NVM from any offset
- */
- for (i = 0; i < words; i++) {
- word_in = e1000_shift_in_eec_bits(hw, 16);
- data[i] = (word_in >> 8) | (word_in << 8);
- }
-
-release:
- nvm->ops.release(hw);
-
- return ret_val;
-}
-
-/**
- * e1000_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 e1000_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 = E1000_SUCCESS;
-
- DEBUGFUNC("e1000_read_nvm_eerd");
-
- /* 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)) {
- DEBUGOUT("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;
-
- E1000_WRITE_REG(hw, E1000_EERD, eerd);
- ret_val = e1000_poll_eerd_eewr_done(hw, E1000_NVM_POLL_READ);
- if (ret_val)
- break;
-
- data[i] = (E1000_READ_REG(hw, E1000_EERD) >>
- E1000_NVM_RW_REG_DATA);
- }
-
- return ret_val;
-}
-
-/**
- * e1000_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 e1000_update_nvm_checksum is not called after this function , the
- * EEPROM will most likely contain an invalid checksum.
- **/
-s32 e1000_write_nvm_spi(struct e1000_hw *hw, u16 offset, u16 words, u16 *data)
-{
- struct e1000_nvm_info *nvm = &hw->nvm;
- s32 ret_val = -E1000_ERR_NVM;
- u16 widx = 0;
-
- DEBUGFUNC("e1000_write_nvm_spi");
-
- /* A check for invalid values: offset too large, too many words,
- * and not enough words.
- */
- if ((offset >= nvm->word_size) || (words > (nvm->word_size - offset)) ||
- (words == 0)) {
- DEBUGOUT("nvm parameter(s) out of bounds\n");
- return -E1000_ERR_NVM;
- }
-
- while (widx < words) {
- u8 write_opcode = NVM_WRITE_OPCODE_SPI;
-
- ret_val = nvm->ops.acquire(hw);
- if (ret_val)
- return ret_val;
-
- ret_val = e1000_ready_nvm_eeprom(hw);
- if (ret_val) {
- nvm->ops.release(hw);
- return ret_val;
- }
-
- e1000_standby_nvm(hw);
-
- /* Send the WRITE ENABLE command (8 bit opcode) */
- e1000_shift_out_eec_bits(hw, NVM_WREN_OPCODE_SPI,
- nvm->opcode_bits);
-
- e1000_standby_nvm(hw);
-
- /* Some SPI eeproms use the 8th address bit embedded in the
- * opcode
- */
- if ((nvm->address_bits == 8) && (offset >= 128))
- write_opcode |= NVM_A8_OPCODE_SPI;
-
- /* Send the Write command (8-bit opcode + addr) */
- e1000_shift_out_eec_bits(hw, write_opcode, nvm->opcode_bits);
- e1000_shift_out_eec_bits(hw, (u16)((offset + widx) * 2),
- nvm->address_bits);
-
- /* Loop to allow for up to whole page write of eeprom */
- while (widx < words) {
- u16 word_out = data[widx];
- word_out = (word_out >> 8) | (word_out << 8);
- e1000_shift_out_eec_bits(hw, word_out, 16);
- widx++;
-
- if ((((offset + widx) * 2) % nvm->page_size) == 0) {
- e1000_standby_nvm(hw);
- break;
- }
- }
- msec_delay(10);
- nvm->ops.release(hw);
- }
-
- return ret_val;
-}
-
-/**
- * e1000_read_pba_string_generic - Read device part number
- * @hw: pointer to the HW structure
- * @pba_num: pointer to device part number
- * @pba_num_size: size of part number buffer
- *
- * Reads the product board assembly (PBA) number from the EEPROM and stores
- * the value in pba_num.
- **/
-s32 e1000_read_pba_string_generic(struct e1000_hw *hw, u8 *pba_num,
- u32 pba_num_size)
-{
- s32 ret_val;
- u16 nvm_data;
- u16 pba_ptr;
- u16 offset;
- u16 length;
-
- DEBUGFUNC("e1000_read_pba_string_generic");
-
- if (pba_num == NULL) {
- DEBUGOUT("PBA string buffer was null\n");
- return -E1000_ERR_INVALID_ARGUMENT;
- }
-
- ret_val = hw->nvm.ops.read(hw, NVM_PBA_OFFSET_0, 1, &nvm_data);
- if (ret_val) {
- DEBUGOUT("NVM Read Error\n");
- return ret_val;
- }
-
- ret_val = hw->nvm.ops.read(hw, NVM_PBA_OFFSET_1, 1, &pba_ptr);
- if (ret_val) {
- DEBUGOUT("NVM Read Error\n");
- return ret_val;
- }
-
- /* if nvm_data is not ptr guard the PBA must be in legacy format which
- * means pba_ptr is actually our second data word for the PBA number
- * and we can decode it into an ascii string
- */
- if (nvm_data != NVM_PBA_PTR_GUARD) {
- DEBUGOUT("NVM PBA number is not stored as string\n");
-
- /* make sure callers buffer is big enough to store the PBA */
- if (pba_num_size < E1000_PBANUM_LENGTH) {
- DEBUGOUT("PBA string buffer too small\n");
- return E1000_ERR_NO_SPACE;
- }
-
- /* extract hex string from data and pba_ptr */
- pba_num[0] = (nvm_data >> 12) & 0xF;
- pba_num[1] = (nvm_data >> 8) & 0xF;
- pba_num[2] = (nvm_data >> 4) & 0xF;
- pba_num[3] = nvm_data & 0xF;
- pba_num[4] = (pba_ptr >> 12) & 0xF;
- pba_num[5] = (pba_ptr >> 8) & 0xF;
- pba_num[6] = '-';
- pba_num[7] = 0;
- pba_num[8] = (pba_ptr >> 4) & 0xF;
- pba_num[9] = pba_ptr & 0xF;
-
- /* put a null character on the end of our string */
- pba_num[10] = '\0';
-
- /* switch all the data but the '-' to hex char */
- for (offset = 0; offset < 10; offset++) {
- if (pba_num[offset] < 0xA)
- pba_num[offset] += '0';
- else if (pba_num[offset] < 0x10)
- pba_num[offset] += 'A' - 0xA;
- }
-
- return E1000_SUCCESS;
- }
-
- ret_val = hw->nvm.ops.read(hw, pba_ptr, 1, &length);
- if (ret_val) {
- DEBUGOUT("NVM Read Error\n");
- return ret_val;
- }
-
- if (length == 0xFFFF || length == 0) {
- DEBUGOUT("NVM PBA number section invalid length\n");
- return -E1000_ERR_NVM_PBA_SECTION;
- }
- /* check if pba_num buffer is big enough */
- if (pba_num_size < (((u32)length * 2) - 1)) {
- DEBUGOUT("PBA string buffer too small\n");
- return -E1000_ERR_NO_SPACE;
- }
-
- /* trim pba length from start of string */
- pba_ptr++;
- length--;
-
- for (offset = 0; offset < length; offset++) {
- ret_val = hw->nvm.ops.read(hw, pba_ptr + offset, 1, &nvm_data);
- if (ret_val) {
- DEBUGOUT("NVM Read Error\n");
- return ret_val;
- }
- pba_num[offset * 2] = (u8)(nvm_data >> 8);
- pba_num[(offset * 2) + 1] = (u8)(nvm_data & 0xFF);
- }
- pba_num[offset * 2] = '\0';
-
- return E1000_SUCCESS;
-}
-
-/**
- * e1000_read_pba_length_generic - Read device part number length
- * @hw: pointer to the HW structure
- * @pba_num_size: size of part number buffer
- *
- * Reads the product board assembly (PBA) number length from the EEPROM and
- * stores the value in pba_num_size.
- **/
-s32 e1000_read_pba_length_generic(struct e1000_hw *hw, u32 *pba_num_size)
-{
- s32 ret_val;
- u16 nvm_data;
- u16 pba_ptr;
- u16 length;
-
- DEBUGFUNC("e1000_read_pba_length_generic");
-
- if (pba_num_size == NULL) {
- DEBUGOUT("PBA buffer size was null\n");
- return -E1000_ERR_INVALID_ARGUMENT;
- }
-
- ret_val = hw->nvm.ops.read(hw, NVM_PBA_OFFSET_0, 1, &nvm_data);
- if (ret_val) {
- DEBUGOUT("NVM Read Error\n");
- return ret_val;
- }
-
- ret_val = hw->nvm.ops.read(hw, NVM_PBA_OFFSET_1, 1, &pba_ptr);
- if (ret_val) {
- DEBUGOUT("NVM Read Error\n");
- return ret_val;
- }
-
- /* if data is not ptr guard the PBA must be in legacy format */
- if (nvm_data != NVM_PBA_PTR_GUARD) {
- *pba_num_size = E1000_PBANUM_LENGTH;
- return E1000_SUCCESS;
- }
-
- ret_val = hw->nvm.ops.read(hw, pba_ptr, 1, &length);
- if (ret_val) {
- DEBUGOUT("NVM Read Error\n");
- return ret_val;
- }
-
- if (length == 0xFFFF || length == 0) {
- DEBUGOUT("NVM PBA number section invalid length\n");
- return -E1000_ERR_NVM_PBA_SECTION;
- }
-
- /* Convert from length in u16 values to u8 chars, add 1 for NULL,
- * and subtract 2 because length field is included in length.
- */
- *pba_num_size = ((u32)length * 2) - 1;
-
- return E1000_SUCCESS;
-}
-
-
-
-
-
-/**
- * e1000_read_mac_addr_generic - Read device MAC address
- * @hw: pointer to the HW structure
- *
- * Reads the device MAC address from the EEPROM and stores the value.
- * Since devices with two ports use the same EEPROM, we increment the
- * last bit in the MAC address for the second port.
- **/
-s32 e1000_read_mac_addr_generic(struct e1000_hw *hw)
-{
- u32 rar_high;
- u32 rar_low;
- u16 i;
-
- rar_high = E1000_READ_REG(hw, E1000_RAH(0));
- rar_low = E1000_READ_REG(hw, E1000_RAL(0));
-
- for (i = 0; i < E1000_RAL_MAC_ADDR_LEN; i++)
- hw->mac.perm_addr[i] = (u8)(rar_low >> (i*8));
-
- for (i = 0; i < E1000_RAH_MAC_ADDR_LEN; i++)
- hw->mac.perm_addr[i+4] = (u8)(rar_high >> (i*8));
-
- for (i = 0; i < ETH_ADDR_LEN; i++)
- hw->mac.addr[i] = hw->mac.perm_addr[i];
-
- return E1000_SUCCESS;
-}
-
-/**
- * e1000_validate_nvm_checksum_generic - Validate EEPROM checksum
- * @hw: pointer to the HW structure
- *
- * Calculates the EEPROM checksum by reading/adding each word of the EEPROM
- * and then verifies that the sum of the EEPROM is equal to 0xBABA.
- **/
-s32 e1000_validate_nvm_checksum_generic(struct e1000_hw *hw)
-{
- s32 ret_val;
- u16 checksum = 0;
- u16 i, nvm_data;
-
- DEBUGFUNC("e1000_validate_nvm_checksum_generic");
-
- for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
- ret_val = hw->nvm.ops.read(hw, i, 1, &nvm_data);
- if (ret_val) {
- DEBUGOUT("NVM Read Error\n");
- return ret_val;
- }
- checksum += nvm_data;
- }
-
- if (checksum != (u16) NVM_SUM) {
- DEBUGOUT("NVM Checksum Invalid\n");
- return -E1000_ERR_NVM;
- }
-
- return E1000_SUCCESS;
-}
-
-/**
- * e1000_update_nvm_checksum_generic - Update EEPROM checksum
- * @hw: pointer to the HW structure
- *
- * Updates the EEPROM checksum by reading/adding each word of the EEPROM
- * up to the checksum. Then calculates the EEPROM checksum and writes the
- * value to the EEPROM.
- **/
-s32 e1000_update_nvm_checksum_generic(struct e1000_hw *hw)
-{
- s32 ret_val;
- u16 checksum = 0;
- u16 i, nvm_data;
-
- DEBUGFUNC("e1000_update_nvm_checksum");
-
- for (i = 0; i < NVM_CHECKSUM_REG; i++) {
- ret_val = hw->nvm.ops.read(hw, i, 1, &nvm_data);
- if (ret_val) {
- DEBUGOUT("NVM Read Error while updating checksum.\n");
- return ret_val;
- }
- checksum += nvm_data;
- }
- checksum = (u16) NVM_SUM - checksum;
- ret_val = hw->nvm.ops.write(hw, NVM_CHECKSUM_REG, 1, &checksum);
- if (ret_val)
- DEBUGOUT("NVM Write Error while updating checksum.\n");
-
- return ret_val;
-}
-
-/**
- * e1000_reload_nvm_generic - Reloads EEPROM
- * @hw: pointer to the HW structure
- *
- * Reloads the EEPROM by setting the "Reinitialize from EEPROM" bit in the
- * extended control register.
- **/
-static void e1000_reload_nvm_generic(struct e1000_hw *hw)
-{
- u32 ctrl_ext;
-
- DEBUGFUNC("e1000_reload_nvm_generic");
-
- usec_delay(10);
- ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
- ctrl_ext |= E1000_CTRL_EXT_EE_RST;
- E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext);
- E1000_WRITE_FLUSH(hw);
-}
-
-/**
- * e1000_get_fw_version - Get firmware version information
- * @hw: pointer to the HW structure
- * @fw_vers: pointer to output version structure
- *
- * unsupported/not present features return 0 in version structure
- **/
-void e1000_get_fw_version(struct e1000_hw *hw, struct e1000_fw_version *fw_vers)
-{
- u16 eeprom_verh, eeprom_verl, etrack_test, fw_version;
- u8 q, hval, rem, result;
- u16 comb_verh, comb_verl, comb_offset;
-
- memset(fw_vers, 0, sizeof(struct e1000_fw_version));
-
- /* basic eeprom version numbers, bits used vary by part and by tool
- * used to create the nvm images */
- /* Check which data format we have */
- hw->nvm.ops.read(hw, NVM_ETRACK_HIWORD, 1, &etrack_test);
- switch (hw->mac.type) {
- case e1000_i211:
- e1000_read_invm_version(hw, fw_vers);
- return;
- case e1000_82575:
- case e1000_82576:
- case e1000_82580:
- /* Use this format, unless EETRACK ID exists,
- * then use alternate format
- */
- if ((etrack_test & NVM_MAJOR_MASK) != NVM_ETRACK_VALID) {
- hw->nvm.ops.read(hw, NVM_VERSION, 1, &fw_version);
- fw_vers->eep_major = (fw_version & NVM_MAJOR_MASK)
- >> NVM_MAJOR_SHIFT;
- fw_vers->eep_minor = (fw_version & NVM_MINOR_MASK)
- >> NVM_MINOR_SHIFT;
- fw_vers->eep_build = (fw_version & NVM_IMAGE_ID_MASK);
- goto etrack_id;
- }
- break;
- case e1000_i210:
- if (!(e1000_get_flash_presence_i210(hw))) {
- e1000_read_invm_version(hw, fw_vers);
- return;
- }
- /* fall through */
- case e1000_i350:
- case e1000_i354:
- /* find combo image version */
- hw->nvm.ops.read(hw, NVM_COMB_VER_PTR, 1, &comb_offset);
- if ((comb_offset != 0x0) &&
- (comb_offset != NVM_VER_INVALID)) {
-
- hw->nvm.ops.read(hw, (NVM_COMB_VER_OFF + comb_offset
- + 1), 1, &comb_verh);
- hw->nvm.ops.read(hw, (NVM_COMB_VER_OFF + comb_offset),
- 1, &comb_verl);
-
- /* get Option Rom version if it exists and is valid */
- if ((comb_verh && comb_verl) &&
- ((comb_verh != NVM_VER_INVALID) &&
- (comb_verl != NVM_VER_INVALID))) {
-
- fw_vers->or_valid = true;
- fw_vers->or_major =
- comb_verl >> NVM_COMB_VER_SHFT;
- fw_vers->or_build =
- (comb_verl << NVM_COMB_VER_SHFT)
- | (comb_verh >> NVM_COMB_VER_SHFT);
- fw_vers->or_patch =
- comb_verh & NVM_COMB_VER_MASK;
- }
- }
- break;
- default:
- return;
- }
- hw->nvm.ops.read(hw, NVM_VERSION, 1, &fw_version);
- fw_vers->eep_major = (fw_version & NVM_MAJOR_MASK)
- >> NVM_MAJOR_SHIFT;
-
- /* check for old style version format in newer images*/
- if ((fw_version & NVM_NEW_DEC_MASK) == 0x0) {
- eeprom_verl = (fw_version & NVM_COMB_VER_MASK);
- } else {
- eeprom_verl = (fw_version & NVM_MINOR_MASK)
- >> NVM_MINOR_SHIFT;
- }
- /* Convert minor value to hex before assigning to output struct
- * Val to be converted will not be higher than 99, per tool output
- */
- q = eeprom_verl / NVM_HEX_CONV;
- hval = q * NVM_HEX_TENS;
- rem = eeprom_verl % NVM_HEX_CONV;
- result = hval + rem;
- fw_vers->eep_minor = result;
-
-etrack_id:
- if ((etrack_test & NVM_MAJOR_MASK) == NVM_ETRACK_VALID) {
- hw->nvm.ops.read(hw, NVM_ETRACK_WORD, 1, &eeprom_verl);
- hw->nvm.ops.read(hw, (NVM_ETRACK_WORD + 1), 1, &eeprom_verh);
- fw_vers->etrack_id = (eeprom_verh << NVM_ETRACK_SHIFT)
- | eeprom_verl;
- }
- return;
-}
Code Review / deb_dpdk.git / blobdiff