1 /* 2 * Copyright 2010 Freescale Semiconductor, Inc. 3 * 4 * See file CREDITS for list of people who contributed to this 5 * project. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License as 9 * published by the Free Software Foundation; either version 2 of 10 * the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 20 * MA 02111-1307 USA 21 */ 22 23 #include <config.h> 24 #include <common.h> 25 #include <asm/io.h> 26 #include <asm/immap_85xx.h> 27 #include <asm/fsl_serdes.h> 28 29 #define SRDS1_MAX_LANES 4 30 31 static u32 serdes1_prtcl_map; 32 33 static u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = { 34 [0x0] = {PCIE1, NONE, NONE, NONE}, 35 [0x6] = {PCIE1, PCIE1, PCIE1, PCIE1}, 36 [0xe] = {PCIE1, PCIE2, SGMII_TSEC2, SGMII_TSEC3}, 37 [0xf] = {PCIE1, PCIE1, SGMII_TSEC2, SGMII_TSEC3}, 38 }; 39 40 int is_serdes_configured(enum srds_prtcl prtcl) 41 { 42 return (1 << prtcl) & serdes1_prtcl_map; 43 } 44 45 void fsl_serdes_init(void) 46 { 47 ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); 48 u32 pordevsr = in_be32(&gur->pordevsr); 49 u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 50 MPC85xx_PORDEVSR_IO_SEL_SHIFT; 51 int lane; 52 53 debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg); 54 55 if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) { 56 printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg); 57 return; 58 } 59 60 for (lane = 0; lane < SRDS1_MAX_LANES; lane++) { 61 enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][lane]; 62 serdes1_prtcl_map |= (1 << lane_prtcl); 63 } 64 } 65