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_86xx.h> 27 #include <asm/fsl_serdes.h> 28 29 #define SRDS1_MAX_LANES 4 30 #define SRDS2_MAX_LANES 4 31 32 static u32 serdes1_prtcl_map, serdes2_prtcl_map; 33 34 static u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = { 35 [0x1] = {PCIE1, PCIE1, PCIE1, PCIE1}, 36 [0x4] = {PCIE1, PCIE1, PCIE1, PCIE1}, 37 [0x7] = {NONE, NONE, NONE, NONE}, 38 }; 39 40 static u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = { 41 [0x0] = {PCIE2, PCIE2, PCIE2, PCIE2}, 42 [0x4] = {PCIE2, PCIE2, PCIE2, PCIE2}, 43 [0x7] = {NONE, NONE, NONE, NONE}, 44 }; 45 46 int is_serdes_configured(enum srds_prtcl device) 47 { 48 int ret = (1 << device) & serdes1_prtcl_map; 49 50 if (ret) 51 return ret; 52 53 return (1 << device) & serdes2_prtcl_map; 54 } 55 56 void fsl_serdes_init(void) 57 { 58 immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR; 59 ccsr_gur_t *gur = &immap->im_gur; 60 u32 pordevsr = in_be32(&gur->pordevsr); 61 u32 srds_cfg = (pordevsr & MPC8610_PORDEVSR_IO_SEL) >> 62 MPC8610_PORDEVSR_IO_SEL_SHIFT; 63 int lane; 64 65 debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg); 66 67 if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) { 68 printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg); 69 return; 70 } 71 for (lane = 0; lane < SRDS1_MAX_LANES; lane++) { 72 enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][lane]; 73 serdes1_prtcl_map |= (1 << lane_prtcl); 74 } 75 76 if (srds_cfg > ARRAY_SIZE(serdes2_cfg_tbl)) { 77 printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg); 78 return; 79 } 80 81 for (lane = 0; lane < SRDS2_MAX_LANES; lane++) { 82 enum srds_prtcl lane_prtcl = serdes2_cfg_tbl[srds_cfg][lane]; 83 serdes2_prtcl_map |= (1 << lane_prtcl); 84 } 85 } 86