/**
* @INTERNAL
* Bringup and enable a SPI interface. After this call packet I/O
* should be fully functional. This is called with IPD enabled but
* PKO disabled.
*
* @param interface Interface to bring up
*
* @return Zero on success, negative on failure
*/
int __cvmx_helper_spi_enable(int interface)
{
/* Normally the ethernet L2 CRC is checked and stripped in the GMX block.
When you are using SPI, this isn' the case and IPD needs to check
the L2 CRC */
int num_ports = cvmx_helper_ports_on_interface(interface);
int ipd_port;
for (ipd_port=interface*16; ipd_port<interface*16+num_ports; ipd_port++)
{
cvmx_pip_prt_cfgx_t port_config;
port_config.u64 = cvmx_read_csr(CVMX_PIP_PRT_CFGX(ipd_port));
port_config.s.crc_en = 1;
#ifdef OCTEON_VENDOR_RADISYS
/*
* Incoming packets on the RSYS4GBE have the FCS stripped.
*/
if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_CUST_RADISYS_RSYS4GBE)
port_config.s.crc_en = 0;
#endif
cvmx_write_csr(CVMX_PIP_PRT_CFGX(ipd_port), port_config.u64);
}
if (cvmx_sysinfo_get()->board_type != CVMX_BOARD_TYPE_SIM)
{
cvmx_spi_start_interface(interface, CVMX_SPI_MODE_DUPLEX, CVMX_HELPER_SPI_TIMEOUT, num_ports);
if (cvmx_spi4000_is_present(interface))
cvmx_spi4000_initialize(interface);
}
return 0;
}
int __cvmx_helper_spi_enable(int interface)
{
/*
* Normally the ethernet L2 CRC is checked and stripped in the
* GMX block. When you are using SPI, this isn' the case and
* IPD needs to check the L2 CRC.
*/
int num_ports = cvmx_helper_ports_on_interface(interface);
int ipd_port;
for (ipd_port = interface * 16; ipd_port < interface * 16 + num_ports;
ipd_port++) {
union cvmx_pip_prt_cfgx port_config;
port_config.u64 = cvmx_read_csr(CVMX_PIP_PRT_CFGX(ipd_port));
port_config.s.crc_en = 1;
cvmx_write_csr(CVMX_PIP_PRT_CFGX(ipd_port), port_config.u64);
}
if (cvmx_sysinfo_get()->board_type != CVMX_BOARD_TYPE_SIM) {
cvmx_spi_start_interface(interface, CVMX_SPI_MODE_DUPLEX,
CVMX_HELPER_SPI_TIMEOUT, num_ports);
if (cvmx_spi4000_is_present(interface))
cvmx_spi4000_initialize(interface);
}
__cvmx_interrupt_spxx_int_msk_enable(interface);
__cvmx_interrupt_stxx_int_msk_enable(interface);
__cvmx_interrupt_gmxx_enable(interface);
return 0;
}
int __cvmx_helper_spi_enable(int interface)
{
/*
*/
int num_ports = cvmx_helper_ports_on_interface(interface);
int ipd_port;
for (ipd_port = interface * 16; ipd_port < interface * 16 + num_ports;
ipd_port++) {
union cvmx_pip_prt_cfgx port_config;
port_config.u64 = cvmx_read_csr(CVMX_PIP_PRT_CFGX(ipd_port));
port_config.s.crc_en = 1;
cvmx_write_csr(CVMX_PIP_PRT_CFGX(ipd_port), port_config.u64);
}
if (cvmx_sysinfo_get()->board_type != CVMX_BOARD_TYPE_SIM) {
cvmx_spi_start_interface(interface, CVMX_SPI_MODE_DUPLEX,
CVMX_HELPER_SPI_TIMEOUT, num_ports);
if (cvmx_spi4000_is_present(interface))
cvmx_spi4000_initialize(interface);
}
__cvmx_interrupt_spxx_int_msk_enable(interface);
__cvmx_interrupt_stxx_int_msk_enable(interface);
__cvmx_interrupt_gmxx_enable(interface);
return 0;
}