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 8 30 31 static u32 serdes1_prtcl_map; 32 33 static u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = { 34 [0x3] = {PCIE1, PCIE1, PCIE1, PCIE1, SRIO1, SRIO1, SRIO1, SRIO1}, 35 [0x4] = {PCIE1, PCIE1, PCIE1, PCIE1, SRIO1, SRIO1, SRIO1, SRIO1}, 36 [0x5] = {NONE, NONE, NONE, NONE, SRIO1, SRIO1, SRIO1, SRIO1}, 37 [0x6] = {NONE, NONE, NONE, NONE, SRIO1, SRIO1, SRIO1, SRIO1}, 38 [0x7] = {PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1}, 39 }; 40 41 int is_serdes_configured(enum srds_prtcl prtcl) 42 { 43 return (1 << prtcl) & serdes1_prtcl_map; 44 } 45 46 void fsl_serdes_init(void) 47 { 48 ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); 49 u32 pordevsr = in_be32(&gur->pordevsr); 50 u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 51 MPC85xx_PORDEVSR_IO_SEL_SHIFT; 52 int lane; 53 54 debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg); 55 56 if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) { 57 printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg); 58 return; 59 } 60 61 for (lane = 0; lane < SRDS1_MAX_LANES; lane++) { 62 enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][lane]; 63 serdes1_prtcl_map |= (1 << lane_prtcl); 64 } 65 } 66