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Prabhakar Kushwaha28747f92011-01-20 16:34:41 +05301/*
2 * Copyright 2011 Freescale Semiconductor, Inc.
3 * Author: Prabhakar Kushwaha <prabhakar@freescale.com>
4 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02005 * SPDX-License-Identifier: GPL-2.0+
Prabhakar Kushwaha28747f92011-01-20 16:34:41 +05306 */
7
8#include <config.h>
9#include <common.h>
10#include <asm/io.h>
11#include <asm/immap_85xx.h>
12#include <asm/fsl_serdes.h>
13
14#define SRDS1_MAX_LANES 4
15#define SRDS2_MAX_LANES 2
16
17static u32 serdes1_prtcl_map, serdes2_prtcl_map;
18
19static 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},
24};
25
26static const u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = {
27 [0x00] = {NONE, NONE},
28 [0x01] = {SATA1, SATA2},
29 [0x02] = {SATA1, SATA2},
30 [0x03] = {PCIE1, PCIE2},
31};
32
33
34int is_serdes_configured(enum srds_prtcl device)
35{
36 int ret = (1 << device) & serdes1_prtcl_map;
37
38 if (ret)
39 return ret;
40
41 return (1 << device) & serdes2_prtcl_map;
42}
43
44void fsl_serdes_init(void)
45{
46 ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
47 u32 pordevsr = in_be32(&gur->pordevsr);
48 u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
49 MPC85xx_PORDEVSR_IO_SEL_SHIFT;
50 int lane;
51
52 debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
53
Axel Line51e47d2013-05-26 15:00:30 +080054 if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
Prabhakar Kushwaha28747f92011-01-20 16:34:41 +053055 printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
56 return;
57 }
58 for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
59 enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][lane];
60 serdes1_prtcl_map |= (1 << lane_prtcl);
61 }
62
Axel Line51e47d2013-05-26 15:00:30 +080063 if (srds_cfg >= ARRAY_SIZE(serdes2_cfg_tbl)) {
Prabhakar Kushwaha28747f92011-01-20 16:34:41 +053064 printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
65 return;
66 }
67
68 for (lane = 0; lane < SRDS2_MAX_LANES; lane++) {
69 enum srds_prtcl lane_prtcl = serdes2_cfg_tbl[srds_cfg][lane];
70 serdes2_prtcl_map |= (1 << lane_prtcl);
71 }
72}