2 * Copyright 2011 Freescale Semiconductor, Inc.
3 * Author: Prabhakar Kushwaha <prabhakar@freescale.com>
5 * SPDX-License-Identifier: GPL-2.0+
11 #include <asm/immap_85xx.h>
12 #include <asm/fsl_serdes.h>
14 #define SRDS1_MAX_LANES 4
15 #define SRDS2_MAX_LANES 2
17 static u32 serdes1_prtcl_map, serdes2_prtcl_map;
19 static const u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
20 [0x00] = {NONE, NONE, NONE, NONE},
21 [0x01] = {PCIE1, PCIE2, SGMII_TSEC2, SGMII_TSEC3},
22 [0x02] = {PCIE1, SGMII_TSEC1, SGMII_TSEC2, SGMII_TSEC3},
23 [0x03] = {NONE, SGMII_TSEC1, SGMII_TSEC2, SGMII_TSEC3},
26 static const u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = {
27 [0x00] = {NONE, NONE},
28 [0x01] = {SATA1, SATA2},
29 [0x02] = {SATA1, SATA2},
30 [0x03] = {PCIE1, PCIE2},
34 int is_serdes_configured(enum srds_prtcl device)
38 if (!(serdes1_prtcl_map & (1 << NONE)))
41 ret = (1 << device) & serdes1_prtcl_map;
46 if (!(serdes2_prtcl_map & (1 << NONE)))
49 return (1 << device) & serdes2_prtcl_map;
52 void fsl_serdes_init(void)
54 ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
55 u32 pordevsr = in_be32(&gur->pordevsr);
56 u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
57 MPC85xx_PORDEVSR_IO_SEL_SHIFT;
60 if (serdes1_prtcl_map & (1 << NONE) &&
61 serdes2_prtcl_map & (1 << NONE))
64 debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
66 if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
67 printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
70 for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
71 enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][lane];
72 serdes1_prtcl_map |= (1 << lane_prtcl);
75 /* Set the first bit to indicate serdes has been initialized */
76 serdes1_prtcl_map |= (1 << NONE);
78 if (srds_cfg >= ARRAY_SIZE(serdes2_cfg_tbl)) {
79 printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
83 for (lane = 0; lane < SRDS2_MAX_LANES; lane++) {
84 enum srds_prtcl lane_prtcl = serdes2_cfg_tbl[srds_cfg][lane];
85 serdes2_prtcl_map |= (1 << lane_prtcl);
88 /* Set the first bit to indicate serdes has been initialized */
89 serdes2_prtcl_map |= (1 << NONE);