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
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>
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()
74 		/* 1000BASE-X */  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()
95 		/* 1000BASE-X */  in __cvmx_helper_sgmii_hardware_init_one_time()
115 			pcsx_sgmx_an_adv_reg.s.link = 1;  in __cvmx_helper_sgmii_hardware_init_one_time()
122 			/* MAC Mode - Nothing to do */  in __cvmx_helper_sgmii_hardware_init_one_time()
129  * Initialize the SERTES link for the first time or after a loss
130  * of link.
151 	if (cvmx_sysinfo_get()->board_type != CVMX_BOARD_TYPE_SIM) {  in __cvmx_helper_sgmii_hardware_init_link()
161 			return -1;  in __cvmx_helper_sgmii_hardware_init_link()
178 	 * isn't an ethernet link, but a link between Octeon and the  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
193  * link is up.
197  * @link_info: Link state to configure
226 		return -1;  in __cvmx_helper_sgmii_hardware_init_link_speed()
240 	 * Use GMXENO to force the link down if the status we get says  in __cvmx_helper_sgmii_hardware_init_link_speed()
245 	/* Only change the duplex setting if the link is up */  in __cvmx_helper_sgmii_hardware_init_link_speed()
255 		/* Setting from GMX-603 */  in __cvmx_helper_sgmii_hardware_init_link_speed()
317 		 * proper link state. In the simulator there is no  in __cvmx_helper_sgmii_hardware_init()
318 		 * link state polling and hence it is set from  in __cvmx_helper_sgmii_hardware_init()
321 		if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_SIM)  in __cvmx_helper_sgmii_hardware_init()
347 	 * Due to errata GMX-700 on CN56XXp1.x and CN52XXp1.x, the  in __cvmx_helper_sgmii_probe()
388  * Return the link state of an IPD/PKO port as returned by
390  * Octeon's link config if auto negotiation has changed since
395  * Returns Link state
407 	if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_SIM) {  in __cvmx_helper_sgmii_link_get()
408 		/* The simulator gives you a simulated 1Gbps full duplex link */  in __cvmx_helper_sgmii_link_get()
418 		/* Force 1Gbps full duplex link for internal loopback */  in __cvmx_helper_sgmii_link_get()
428 		/* 1000BASE-X */  in __cvmx_helper_sgmii_link_get()
440 			 * Don't bother continuing if the SERTES low  in __cvmx_helper_sgmii_link_get()
441 			 * level link is down  in __cvmx_helper_sgmii_link_get()
483 				 * complete. Return link down.  in __cvmx_helper_sgmii_link_get()
497  * Configure an IPD/PKO port for the specified link state. This
499  * The passed link state must always match the link state returned
503  * @link_info: The new link state