1 /* 2 * Copyright 2010 Freescale Semiconductor, Inc. 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <config.h> 8 #include <common.h> 9 #include <asm/io.h> 10 #include <asm/immap_85xx.h> 11 #include <asm/fsl_serdes.h> 12 13 #define SRDS1_MAX_LANES 8 14 15 static u32 serdes1_prtcl_map; 16 17 static u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = { 18 [0x2] = {PCIE1, PCIE1, PCIE1, PCIE1, NONE, NONE, NONE, NONE}, 19 [0x3] = {PCIE1, PCIE1, PCIE1, PCIE1, PCIE2, PCIE2, PCIE2, PCIE2}, 20 [0x6] = {NONE, NONE, NONE, NONE, SRIO1, SRIO1, SRIO1, SRIO1}, 21 [0x7] = {PCIE1, PCIE1, PCIE1, PCIE1, PCIE2, PCIE2, PCIE3, PCIE3}, 22 [0xb] = {PCIE1, PCIE1, PCIE1, PCIE1, SRIO1, SRIO1, SRIO1, SRIO1}, 23 [0xc] = {PCIE1, PCIE1, PCIE1, PCIE1, SRIO1, SRIO1, SRIO1, SRIO1}, 24 [0xd] = {NONE, NONE, NONE, NONE, SRIO1, SRIO1, SRIO1, SRIO1}, 25 [0xe] = {NONE, NONE, NONE, NONE, SRIO1, SRIO1, SRIO1, SRIO1}, 26 [0xf] = {PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1}, 27 }; 28 29 int is_serdes_configured(enum srds_prtcl prtcl) 30 { 31 if (!(serdes1_prtcl_map & (1 << NONE))) 32 fsl_serdes_init(); 33 34 return (1 << prtcl) & serdes1_prtcl_map; 35 } 36 37 void fsl_serdes_init(void) 38 { 39 ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); 40 u32 pordevsr = in_be32(&gur->pordevsr); 41 u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 42 MPC85xx_PORDEVSR_IO_SEL_SHIFT; 43 int lane; 44 45 if (serdes1_prtcl_map & (1 << NONE)) 46 return; 47 48 debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg); 49 50 if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) { 51 printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg); 52 return; 53 } 54 55 for (lane = 0; lane < SRDS1_MAX_LANES; lane++) { 56 enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][lane]; 57 serdes1_prtcl_map |= (1 << lane_prtcl); 58 } 59 60 if (!(pordevsr & MPC85xx_PORDEVSR_SGMII1_DIS)) 61 serdes1_prtcl_map |= (1 << SGMII_TSEC1); 62 63 if (!(pordevsr & MPC85xx_PORDEVSR_SGMII2_DIS)) 64 serdes1_prtcl_map |= (1 << SGMII_TSEC2); 65 66 if (!(pordevsr & MPC85xx_PORDEVSR_SGMII3_DIS)) 67 serdes1_prtcl_map |= (1 << SGMII_TSEC3); 68 69 if (!(pordevsr & MPC85xx_PORDEVSR_SGMII4_DIS)) 70 serdes1_prtcl_map |= (1 << SGMII_TSEC4); 71 72 /* Set the first bit to indicate serdes has been initialized */ 73 serdes1_prtcl_map |= (1 << NONE); 74 } 75