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