#define CONFIG_DEFAULT_SPI_MODE SPI_MODE_0
#endif
-ssize_t spi_read (uchar *addr, int alen, uchar *buffer, int len)
+ssize_t spi_read(uchar *addr, int alen, uchar *buffer, int len)
{
struct spi_slave *slave;
u8 cmd = SPI_EEPROM_READ;
slave = spi_setup_slave(CONFIG_DEFAULT_SPI_BUS, 1, 1000000,
CONFIG_DEFAULT_SPI_MODE);
- if(!slave)
+ if (!slave)
return 0;
spi_claim_bus(slave);
/* command */
- if(spi_xfer(slave, 8, &cmd, NULL, SPI_XFER_BEGIN))
+ if (spi_xfer(slave, 8, &cmd, NULL, SPI_XFER_BEGIN))
return -1;
/*
- * if alen == 3, addr[0] is the block number, we never use it here. All we
- * need are the lower 16 bits
+ * if alen == 3, addr[0] is the block number, we never use it here.
+ * All we need are the lower 16 bits.
*/
if (alen == 3)
addr++;
/* address, and data */
- if(spi_xfer(slave, 16, addr, NULL, 0))
+ if (spi_xfer(slave, 16, addr, NULL, 0))
return -1;
- if(spi_xfer(slave, 8 * len, NULL, buffer, SPI_XFER_END))
+ if (spi_xfer(slave, 8 * len, NULL, buffer, SPI_XFER_END))
return -1;
spi_release_bus(slave);
return len;
}
-ssize_t spi_write (uchar *addr, int alen, uchar *buffer, int len)
+ssize_t spi_write(uchar *addr, int alen, uchar *buffer, int len)
{
struct spi_slave *slave;
char buf[3];
spi_claim_bus(slave);
buf[0] = SPI_EEPROM_WREN;
- if(spi_xfer(slave, 8, buf, NULL, SPI_XFER_BEGIN | SPI_XFER_END))
+ if (spi_xfer(slave, 8, buf, NULL, SPI_XFER_BEGIN | SPI_XFER_END))
return -1;
buf[0] = SPI_EEPROM_WRITE;
memcpy(buf + 1, addr, alen);
/* command + addr, then data */
- if(spi_xfer(slave, 24, buf, NULL, SPI_XFER_BEGIN))
+ if (spi_xfer(slave, 24, buf, NULL, SPI_XFER_BEGIN))
return -1;
- if(spi_xfer(slave, len * 8, buffer, NULL, SPI_XFER_END))
+ if (spi_xfer(slave, len * 8, buffer, NULL, SPI_XFER_END))
return -1;
start = get_timer(0);
} while (get_timer(start) < CONFIG_SYS_SPI_WRITE_TOUT);
if (buf[1] & 1)
- printf ("*** spi_write: Time out while writing!\n");
+ printf("*** spi_write: Timeout while writing!\n");
spi_release_bus(slave);
spi_free_slave(slave);