bpck6_send_cmd
bpck6_send_cmd(pi, port | ACCESS_PORT | ACCESS_READ);
bpck6_send_cmd(pi, port | ACCESS_PORT | ACCESS_WRITE);
bpck6_send_cmd(pi, REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE);
bpck6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK);
bpck6_send_cmd(pi, ATA_REG_DATA | ACCESS_PORT | ACCESS_WRITE);
bpck6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_FASTWR);
bpck6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_FASTWR);
bpck6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK);
bpck6_send_cmd(pi, REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE);
bpck6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK);
bpck6_send_cmd(pi, ATA_REG_DATA | ACCESS_PORT | ACCESS_READ);
bpck6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK);
bpck6_send_cmd(pi, ACCESS_REG | ACCESS_WRITE | REG_RAMSIZE);
bpck6_send_cmd(pi, ACCESS_REG | ACCESS_READ | REG_VERSION);
bpck6_send_cmd(pi, REG_VERSION | ACCESS_REG | ACCESS_WRITE);