cavium-octeon/executive/cvmx-helper-sgmii.c

7  * Copyright (C) 2003-2018 Cavium, Inc.
14  * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
29  * Functions for SGMII initialization, configuration,
35 #include <asm/octeon/cvmx-config.h>
37 #include <asm/octeon/cvmx-helper.h>
38 #include <asm/octeon/cvmx-helper-board.h>
40 #include <asm/octeon/cvmx-gmxx-defs.h>
41 #include <asm/octeon/cvmx-pcsx-defs.h>
42 #include <asm/octeon/cvmx-pcsxx-defs.h>
45  * Perform initialization required only once for an SGMII port.
54 	const uint64_t clock_mhz = cvmx_sysinfo_get()->cpu_clock_hz / 1000000;  in __cvmx_helper_sgmii_hardware_init_one_time()
66 	 * appropriate value. 1000BASE-X specifies a 10ms  in __cvmx_helper_sgmii_hardware_init_one_time()
67 	 * interval. SGMII specifies a 1.6ms interval.  in __cvmx_helper_sgmii_hardware_init_one_time()
74 		/* 1000BASE-X */  in __cvmx_helper_sgmii_hardware_init_one_time()
78 		/* SGMII */  in __cvmx_helper_sgmii_hardware_init_one_time()
88 	 * 1000BASE-X mode, tx_Config_Reg<D15:D0> is PCS*_AN*_ADV_REG.  in __cvmx_helper_sgmii_hardware_init_one_time()
89 	 * In SGMII PHY mode, tx_Config_Reg<D15:D0> is  in __cvmx_helper_sgmii_hardware_init_one_time()
90 	 * PCS*_SGM*_AN_ADV_REG.  In SGMII MAC mode,  in __cvmx_helper_sgmii_hardware_init_one_time()
95 		/* 1000BASE-X */  in __cvmx_helper_sgmii_hardware_init_one_time()
122 			/* MAC Mode - Nothing to do */  in __cvmx_helper_sgmii_hardware_init_one_time()
151 	if (cvmx_sysinfo_get()->board_type != CVMX_BOARD_TYPE_SIM) {  in __cvmx_helper_sgmii_hardware_init_link()
158 			cvmx_dprintf("SGMII%d: Timeout waiting for port %d "  in __cvmx_helper_sgmii_hardware_init_link()
161 			return -1;  in __cvmx_helper_sgmii_hardware_init_link()
167 	 * sgmii negotiation starts.  in __cvmx_helper_sgmii_hardware_init_link()
177 	 * that sgmii autonegotiation is complete. In MAC mode this  in __cvmx_helper_sgmii_hardware_init_link()
181 	if ((cvmx_sysinfo_get()->board_type != CVMX_BOARD_TYPE_SIM) &&  in __cvmx_helper_sgmii_hardware_init_link()
185 		/* cvmx_dprintf("SGMII%d: Port %d link timeout\n", interface, index); */  in __cvmx_helper_sgmii_hardware_init_link()
186 		return -1;  in __cvmx_helper_sgmii_hardware_init_link()
192  * Configure an SGMII link to the specified speed after the SERTES
224 		    ("SGMII%d: Timeout waiting for port %d to be idle\n",  in __cvmx_helper_sgmii_hardware_init_link_speed()
226 		return -1;  in __cvmx_helper_sgmii_hardware_init_link_speed()
250 	switch (link_info.s.speed) {  in __cvmx_helper_sgmii_hardware_init_link_speed()
255 		/* Setting from GMX-603 */  in __cvmx_helper_sgmii_hardware_init_link_speed()
298  * Bring up the SGMII interface to be ready for packet I/O but
321 		if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_SIM)  in __cvmx_helper_sgmii_hardware_init()
334  * Probe a SGMII interface and determine the number of ports
335  * connected to it. The SGMII interface should still be down after
347 	 * Due to errata GMX-700 on CN56XXp1.x and CN52XXp1.x, the  in __cvmx_helper_sgmii_probe()
358  * Bringup and enable a SGMII interface. After this call packet
407 	if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_SIM) {  in __cvmx_helper_sgmii_link_get()
428 		/* 1000BASE-X */  in __cvmx_helper_sgmii_link_get()
465 				switch (pcsx_anx_results_reg.s.spd) {  in __cvmx_helper_sgmii_link_get()