cavium-octeon/executive/cvmx-helper.c

49 /* Port count per interface */
53  * Return the number of interfaces the chip has. Each interface
56  * one interface.
80  * Return the number of ports on an interface. Depending on the
82  * specifies that the interface doesn't exist or isn't usable.
84  * @interface: Interface to get the port count for
86  * Returns Number of ports on interface. Can be Zero.
88 int cvmx_helper_ports_on_interface(int interface)
90 	return interface_port_count[interface];
96  * Return interface mode for CN68xx.
98 static cvmx_helper_interface_mode_t __cvmx_get_mode_cn68xx(int interface)
101 	switch (interface) {
117 		qlm_cfg.u64 = cvmx_read_csr(CVMX_MIO_QLMX_CFG(interface));
148  * Return interface mode for an Octeon II
150 static cvmx_helper_interface_mode_t __cvmx_get_mode_octeon2(int interface)
155 		return __cvmx_get_mode_cn68xx(interface);
157 	if (interface == 2)
160 	if (interface == 3)
165 	     (interface == 4 || interface == 5)) ||
167 	     interface >= 4 && interface <= 7)) {
175 		if (interface == 0)
177 		else if (interface == 1)
194 		if (interface == 0) {
202 		} else if (interface == 1) {
212 		if (interface == 0) {
221 	if (interface == 1 && OCTEON_IS_MODEL(OCTEON_CN63XX))
224 	mode.u64 = cvmx_read_csr(CVMX_GMXX_INF_MODE(interface));
248  * Return interface mode for CN7XXX.
250 static cvmx_helper_interface_mode_t __cvmx_get_mode_cn7xxx(int interface)
254 	mode.u64 = cvmx_read_csr(CVMX_GMXX_INF_MODE(interface));
256 	switch (interface) {
283  * Get the operating mode of an interface. Depending on the Octeon
285  * of the type of packet I/O supported by an interface.
287  * @interface: Interface to probe
289  * Returns Mode of the interface. Unknown or unsupported interfaces return
292 cvmx_helper_interface_mode_t cvmx_helper_interface_get_mode(int interface)
296 	if (interface < 0 ||
297 	    interface >= cvmx_helper_get_number_of_interfaces())
304 		return __cvmx_get_mode_cn7xxx(interface);
310 		return __cvmx_get_mode_octeon2(interface);
315 	if (interface == 2)
318 	if (interface == 3) {
327 	if ((interface == 1)
333 	mode.u64 = cvmx_read_csr(CVMX_GMXX_INF_MODE(interface));
371  *		   per interface numbering
414  * This function sets the interface_port_count[interface] correctly,
418  * @interface: Interface to probe
422 int cvmx_helper_interface_enumerate(int interface)
424 	switch (cvmx_helper_interface_get_mode(interface)) {
428 		interface_port_count[interface] = 0;
432 		interface_port_count[interface] =
433 		    __cvmx_helper_xaui_enumerate(interface);
441 		interface_port_count[interface] =
442 		    __cvmx_helper_rgmii_enumerate(interface);
449 		interface_port_count[interface] =
450 		    __cvmx_helper_spi_enumerate(interface);
458 		interface_port_count[interface] =
459 		    __cvmx_helper_sgmii_enumerate(interface);
463 		interface_port_count[interface] =
464 		    __cvmx_helper_npi_enumerate(interface);
471 		interface_port_count[interface] =
472 		    __cvmx_helper_loop_enumerate(interface);
476 	interface_port_count[interface] =
477 	    __cvmx_helper_board_interface_probe(interface,
479 						[interface]);
488  * This function probes an interface to determine the actual
491  * interface_port_count[interface] correctly. Hardware setup of the
494  * @interface: Interface to probe
498 int cvmx_helper_interface_probe(int interface)
500 	cvmx_helper_interface_enumerate(interface);
504 	switch (cvmx_helper_interface_get_mode(interface)) {
511 		__cvmx_helper_xaui_probe(interface);
519 		__cvmx_helper_rgmii_probe(interface);
526 		__cvmx_helper_spi_probe(interface);
534 		__cvmx_helper_sgmii_probe(interface);
538 		__cvmx_helper_npi_probe(interface);
545 		__cvmx_helper_loop_probe(interface);
556  * Setup the IPD/PIP for the ports on an interface. Packet
558  * interface. The number of ports on the interface must already
561  * @interface: Interface to setup IPD/PIP for
565 static int __cvmx_helper_interface_setup_ipd(int interface)
567 	int ipd_port = cvmx_helper_get_ipd_port(interface, 0);
568 	int num_ports = interface_port_count[interface];
579  * interface or port. This must be called before IPD is enabled.
600  * Setup the PKO for the ports on an interface. The number of
604  * @interface: Interface to setup PKO for
608 static int __cvmx_helper_interface_setup_pko(int interface)
630 	int ipd_port = cvmx_helper_get_ipd_port(interface, 0);
631 	int num_ports = interface_port_count[interface];
645  * interface or port. This must be called before PKO is enabled.
689 	int interface;
690 	for (interface = 0; interface < num_interfaces; interface++) {
691 		switch (cvmx_helper_interface_get_mode(interface)) {
703 			cvmx_gmx_set_backpressure_override(interface, 0xf);
719  * @interface: Interface to enable
723 static int __cvmx_helper_packet_hardware_enable(int interface)
726 	switch (cvmx_helper_interface_get_mode(interface)) {
734 		result = __cvmx_helper_xaui_enable(interface);
742 		result = __cvmx_helper_rgmii_enable(interface);
749 		result = __cvmx_helper_spi_enable(interface);
757 		result = __cvmx_helper_sgmii_enable(interface);
761 		result = __cvmx_helper_npi_enable(interface);
768 		result = __cvmx_helper_loop_enable(interface);
787 	/* Ports 0-15 are interface 0, 16-31 are interface 1 */
977 	int interface;
988 	for (interface = 0; interface < num_interfaces; interface++) {
989 		if (cvmx_helper_ports_on_interface(interface) > 0)
990 			__cvmx_helper_packet_hardware_enable(interface);
1016 	int interface;
1038 	for (interface = 0; interface < num_interfaces; interface++) {
1039 		result |= cvmx_helper_interface_probe(interface);
1040 		if (cvmx_helper_ports_on_interface(interface) > 0)
1042 				     interface,
1043 				     cvmx_helper_ports_on_interface(interface),
1046 				      (interface)));
1047 		result |= __cvmx_helper_interface_setup_ipd(interface);
1048 		result |= __cvmx_helper_interface_setup_pko(interface);
1077 	int interface = cvmx_helper_get_interface_num(ipd_port);
1084 	if (index >= cvmx_helper_ports_on_interface(interface))
1087 	switch (cvmx_helper_interface_get_mode(interface)) {
1138 	int interface = cvmx_helper_get_interface_num(ipd_port);
1141 	if (index >= cvmx_helper_ports_on_interface(interface))
1144 	switch (cvmx_helper_interface_get_mode(interface)) {