1 // SPDX-License-Identifier: GPL-2.0
7  *		WingMan Kwok <w-kwok2@ti.com>
17 /* PCS-R registers */
26 #define MASK_WID_SH(w, s)		(((1 << w) - 1) << s)
146 /* lane is 0 based */
148 			void __iomem *serdes_regs, int lane)  in netcp_xgbe_serdes_lane_config()  argument
152 	/* lane setup */  in netcp_xgbe_serdes_lane_config()
156 				(0x200 * lane),  in netcp_xgbe_serdes_lane_config()
162 	reg_rmw(serdes_regs + (0x200 * lane) + 0x0380,  in netcp_xgbe_serdes_lane_config()
166 	reg_rmw(serdes_regs + (0x200 * lane) + 0x03c0,  in netcp_xgbe_serdes_lane_config()
182 			void __iomem *serdes_regs, int lane)  in netcp_xgbe_serdes_lane_enable()  argument
184 	/* Set Lane Control Rate */  in netcp_xgbe_serdes_lane_enable()
185 	writel(0xe0e9e038, serdes_regs + 0x1fe0 + (4 * lane));  in netcp_xgbe_serdes_lane_enable()
219 			ret = -ETIMEDOUT;  in netcp_xgbe_wait_pll_locked()
258 	/* For 2 lane Phy-B, lane0 is actually lane1 */  in netcp_xgbe_serdes_write_tbus_addr()
260 	case 1:  in netcp_xgbe_serdes_write_tbus_addr()
283 					void __iomem *sig_detect_reg, int lane)  in netcp_xgbe_serdes_reset_cdr()  argument
289 			serdes_regs, lane + 1, 5);  in netcp_xgbe_serdes_reset_cdr()
294 		reg_rmw(sig_detect_reg, VAL_SH(2, 1), MASK_WID_SH(2, 1));  in netcp_xgbe_serdes_reset_cdr()
295 		mdelay(1);  in netcp_xgbe_serdes_reset_cdr()
296 		reg_rmw(sig_detect_reg, VAL_SH(0, 1), MASK_WID_SH(2, 1));  in netcp_xgbe_serdes_reset_cdr()
298 		tbus = netcp_xgbe_serdes_read_select_tbus(serdes_regs, lane +  in netcp_xgbe_serdes_reset_cdr()
299 							  1, 0xe);  in netcp_xgbe_serdes_reset_cdr()
314 	int loss, i, status = 1;  in netcp_xgbe_check_link_status()
336 				pr_debug("XGBE PCSR Linked Lane: %d\n", i);  in netcp_xgbe_check_link_status()
337 				reg_rmw(sig_detect_reg, VAL_SH(3, 1),  in netcp_xgbe_check_link_status()
338 					MASK_WID_SH(2, 1));  in netcp_xgbe_check_link_status()
339 				current_state[i] = 1;  in netcp_xgbe_check_link_status()
342 				pr_debug("XGBE PCSR Recover Lane: %d\n", i);  in netcp_xgbe_check_link_status()
348 		case 1:  in netcp_xgbe_check_link_status()
351 				lane_down[i] = 1;  in netcp_xgbe_check_link_status()
359 				current_state[i] = 1;  in netcp_xgbe_check_link_status()
385 		status &= (current_state[i] == 1);  in netcp_xgbe_check_link_status()
400 		lane_down[1] = 0;  in netcp_xgbe_serdes_check_lane()
413 			pr_debug("XGBE: detected link down on lane 0\n");  in netcp_xgbe_serdes_check_lane()
415 		if (lane_down[1])  in netcp_xgbe_serdes_check_lane()
416 			pr_debug("XGBE: detected link down on lane 1\n");  in netcp_xgbe_serdes_check_lane()
418 		if (++retries > 1) {  in netcp_xgbe_serdes_check_lane()
420 			return -ETIMEDOUT;  in netcp_xgbe_serdes_check_lane()
430 					     int lane, int cm, int c1, int c2)  in netcp_xgbe_serdes_setup_cm_c1_c2()  argument
435 		reg_rmw(serdes_regs + cfg_cm_c1_c2[i].ofs + (0x200 * lane),  in netcp_xgbe_serdes_setup_cm_c1_c2()
465 	/* This is EVM + RTM-BOC specific */  in netcp_xgbe_serdes_config()
490 		pr_debug("XGBE: serdes already in operation - reset\n");  in netcp_xgbe_serdes_init()