#define EE_LIMIT 128 /* Index to end testing at */
/* Bit Ordering for Instructions
-**
-** A0, A1, A2, A3, A4, A5, A6, OP0, OP1, SB (lsb, or 1st bit out)
-**
-*/
+ *
+ * A0, A1, A2, A3, A4, A5, A6, OP0, OP1, SB (lsb, or 1st bit out)
+ *
+ */
#define EPROM_EWEN 0x0019 /* Erase/Write enable (reversed) */
#define EPROM_EWDS 0x0001 /* Erase/Write disable (reversed) */
static void BuildByteReverse(void)
{
- long half; /* Used to build by powers to 2 */
+ /* Used to build by powers to 2 */
+ long half;
int i;
ByteReverse[0] = 0;
u_int32_t output;
while (--count >= 0) {
- output = (data & EPROM_ACTIVE_OUT_BIT) ? 1 : 0; /* Get next data bit */
- output |= EPROM_ENCS; /* Add Chip Select */
+ /* Get next data bit */
+ output = (data & EPROM_ACTIVE_OUT_BIT) ? 1 : 0;
+ /* Add Chip Select */
+ output |= EPROM_ENCS;
data >>= 1;
eeprom_delay();
- pci_write_32((u_int32_t *) addr, output); /* Output it */
+ /* Output it */
+ pci_write_32((u_int32_t *) addr, output);
}
}
int count;
/* Start the Reading of DATA
-**
-** The first read is a dummy as the data is latched in the
-** EPLD and read on the next read access to the EEPROM.
-*/
+ *
+ * The first read is a dummy as the data is latched in the
+ * EPLD and read on the next read access to the EEPROM.
+ */
input = pci_read_32((u_int32_t *) addr);
eeprom_delay();
input = pci_read_32((u_int32_t *) addr);
- data <<= 1; /* Shift data over */
+ /* Shift data over */
+ data <<= 1;
data |= (input & EPROM_ACTIVE_IN_BIT) ? 1 : 0;
}
{
eeprom_put_byte(addr, EPROM_EWDS, SIZE_ADDR_OP);
- pci_write_32((u_int32_t *) addr, 0); /* this removes Chip Select
- * from EEPROM */
+ /* this removes Chip Select from EEPROM */
+ pci_write_32((u_int32_t *) addr, 0);
}
/*------------------------------------------------------------------------
{
eeprom_put_byte(addr, EPROM_EWEN, SIZE_ADDR_OP);
- pci_write_32((u_int32_t *) addr, 0); /* this removes Chip Select
- * from EEPROM */
+ /* this removes Chip Select from EEPROM */
+ pci_write_32((u_int32_t *) addr, 0);
}
/*------------------------------------------------------------------------
static u_int32_t pmc_eeprom_read(long addr, long mem_offset)
{
- u_int32_t data; /* Data from chip */
+ /* Data from chip */
+ u_int32_t data;
if (!ByteReverseBuilt)
BuildByteReverse();
- mem_offset = ByteReverse[0x7F & mem_offset]; /* Reverse address */
+ /* Reverse address */
+ mem_offset = ByteReverse[0x7F & mem_offset];
+
/*
- * NOTE: The max offset address is 128 or half the reversal table. So the
- * LSB is always zero and counts as a built in shift of one bit. So even
- * though we need to shift 3 bits to make room for the command, we only
- * need to shift twice more because of the built in shift.
+ * NOTE: The max offset address is 128 or half the reversal table. So
+ * the LSB is always zero and counts as a built in shift of one bit.
+ * So even though we need to shift 3 bits to make room for the command,
+ * we only need to shift twice more because of the built in shift.
*/
- mem_offset <<= 2; /* Shift for command */
- mem_offset |= EPROM_READ; /* Add command */
- eeprom_put_byte(addr, mem_offset, SIZE_ADDR_OP); /* Output chip address */
+ /* Shift for command */
+ mem_offset <<= 2;
+ /* Add command */
+ mem_offset |= EPROM_READ;
- data = eeprom_get_byte(addr); /* Read chip data */
+ /* Output chip address */
+ eeprom_put_byte(addr, mem_offset, SIZE_ADDR_OP);
- pci_write_32((u_int32_t *) addr, 0); /* Remove Chip Select from
- * EEPROM */
+ /* Read chip data */
+ data = eeprom_get_byte(addr);
+
+ /* Remove Chip Select from EEPROM */
+ pci_write_32((u_int32_t *) addr, 0);
return (data & 0x000000FF);
}
if (!ByteReverseBuilt)
BuildByteReverse();
- mem_offset = ByteReverse[0x7F & mem_offset]; /* Reverse address */
+ /* Reverse address */
+ mem_offset = ByteReverse[0x7F & mem_offset];
+
/*
- * NOTE: The max offset address is 128 or half the reversal table. So the
- * LSB is always zero and counts as a built in shift of one bit. So even
- * though we need to shift 3 bits to make room for the command, we only
- * need to shift twice more because of the built in shift.
+ * NOTE: The max offset address is 128 or half the reversal table. So
+ * the LSB is always zero and counts as a built in shift of one bit.
+ * So even though we need to shift 3 bits to make room for the command,
+ * we only need to shift twice more because of the built in shift.
*/
- mem_offset <<= 2; /* Shift for command */
- mem_offset |= EPROM_WRITE; /* Add command */
- eeprom_put_byte(addr, mem_offset, SIZE_ADDR_OP); /* Output chip address */
+ /* Shift for command */
+ mem_offset <<= 2;
+ /* Add command */
+ mem_offset |= EPROM_WRITE;
- data = ByteReverse[0xFF & data]; /* Reverse data */
- eeprom_put_byte(addr, data, NUM_OF_BITS); /* Output chip data */
+ /* Output chip address */
+ eeprom_put_byte(addr, mem_offset, SIZE_ADDR_OP);
- pci_write_32((u_int32_t *) addr, 0); /* Remove Chip Select from
- * EEPROM */
+ /* Reverse data */
+ data = ByteReverse[0xFF & data];
+ /* Output chip data */
+ eeprom_put_byte(addr, data, NUM_OF_BITS);
+
+ /* Remove Chip Select from EEPROM */
+ pci_write_32((u_int32_t *) addr, 0);
/*
-** Must see Data In at a low state before completing this transaction.
-**
-** Afterwards, the data bit will return to a high state, ~6 ms, terminating
-** the operation.
-*/
- pci_write_32((u_int32_t *) addr, EPROM_ENCS); /* Re-enable Chip Select */
- temp = pci_read_32((u_int32_t *) addr); /* discard first read */
+ * Must see Data In at a low state before completing this transaction.
+ *
+ * Afterwards, the data bit will return to a high state, ~6 ms, terminating
+ * the operation.
+ */
+ /* Re-enable Chip Select */
+ pci_write_32((u_int32_t *) addr, EPROM_ENCS);
+ /* discard first read */
+ temp = pci_read_32((u_int32_t *) addr);
temp = pci_read_32((u_int32_t *) addr);
if (temp & EPROM_ACTIVE_IN_BIT) {
temp = pci_read_32((u_int32_t *) addr);
if (temp & EPROM_ACTIVE_IN_BIT) {
- pci_write_32((u_int32_t *) addr, 0); /* Remove Chip Select
- * from EEPROM */
+ /* Remove Chip Select from EEPROM */
+ pci_write_32((u_int32_t *) addr, 0);
return (1);
}
}
static u_int32_t pmcCalcCrc_T01(void *bufp)
{
FLD_TYPE2 *buf = bufp;
- u_int32_t crc; /* CRC of the structure */
+ /* CRC of the structure */
+ u_int32_t crc;
/* Calc CRC for type and length fields */
sbeCrc((u_int8_t *) & buf->type,
(u_int32_t) 0, (u_int32_t *) & crc);
#ifdef EEPROM_TYPE_DEBUG
- pr_info("sbeCrc: crc 1 calculated as %08x\n", crc); /* RLD DEBUG */
+ /* RLD DEBUG */
+ pr_info("sbeCrc: crc 1 calculated as %08x\n", crc);
#endif
return ~crc;
}
static u_int32_t pmcCalcCrc_T02(void *bufp)
{
FLD_TYPE2 *buf = bufp;
- u_int32_t crc; /* CRC of the structure */
+ /* CRC of the structure */
+ u_int32_t crc;
/* Calc CRC for type and length fields */
sbeCrc((u_int8_t *) & buf->type,
(u_int32_t) crc, (u_int32_t *) & crc);
#ifdef EEPROM_TYPE_DEBUG
- pr_info("sbeCrc: crc 2 calculated as %08x\n", crc); /* RLD DEBUG */
+ /* RLD DEBUG */
+ pr_info("sbeCrc: crc 2 calculated as %08x\n", crc);
#endif
return crc;
}
void pmc_init_seeprom(u_int32_t addr, u_int32_t serialNum)
{
- PROMFORMAT buffer; /* Memory image of structure */
- u_int32_t crc; /* CRC of structure */
+ /* Memory image of structure */
+ PROMFORMAT buffer;
+ /* CRC of structure */
+ u_int32_t crc;
time_t createTime;
createTime = get_seconds();
{
FLD_TYPE1 *buf1 = bufp;
FLD_TYPE2 *buf2 = bufp;
- u_int32_t crc1, crc2; /* CRC read from EEPROM */
+ /* CRC read from EEPROM */
+ u_int32_t crc1, crc2;
/* Retrieve contents of CRC field */
crc1 = pmcGetBuffValue(&buf1->Crc32[0], sizeof(buf1->Crc32));
#ifdef EEPROM_TYPE_DEBUG
- pr_info("EEPROM: chksum 1 reads as %08x\n", crc1); /* RLD DEBUG */
+ /* RLD DEBUG */
+ pr_info("EEPROM: chksum 1 reads as %08x\n", crc1);
#endif
if ((buf1->type == PROM_FORMAT_TYPE1) &&
(pmcCalcCrc_T01((void *)buf1) == crc1))
crc2 = pmcGetBuffValue(&buf2->Crc32[0], sizeof(buf2->Crc32));
#ifdef EEPROM_TYPE_DEBUG
- pr_info("EEPROM: chksum 2 reads as %08x\n", crc2); /* RLD DEBUG */
+ /* RLD DEBUG */
+ pr_info("EEPROM: chksum 2 reads as %08x\n", crc2);
#endif
if ((buf2->type == PROM_FORMAT_TYPE2) &&
(pmcCalcCrc_T02((void *)buf2) == crc2))
return PROM_FORMAT_TYPE2; /* checksum type 2 verified */
- return PROM_FORMAT_Unk; /* failed to validate */
+ /* failed to validate */
+ return PROM_FORMAT_Unk;
}
-
-/*** End-of-File ***/
projects / karo-tx-linux.git / commitdiff