2 * Copyright 2010 Freescale Semiconductor, Inc.
4 * SPDX-License-Identifier: GPL-2.0+
10 #include <asm/immap_86xx.h>
11 #include <asm/fsl_serdes.h>
13 #define SRDS1_MAX_LANES 4
14 #define SRDS2_MAX_LANES 4
16 static u32 serdes1_prtcl_map
, serdes2_prtcl_map
;
18 static u8 serdes1_cfg_tbl
[][SRDS1_MAX_LANES
] = {
19 [0x2] = {PCIE1
, PCIE1
, PCIE1
, PCIE1
},
20 [0x3] = {PCIE1
, PCIE1
, PCIE1
, PCIE1
},
21 [0x5] = {PCIE1
, PCIE1
, PCIE1
, PCIE1
},
22 [0x6] = {PCIE1
, PCIE1
, PCIE1
, PCIE1
},
23 [0x7] = {PCIE1
, PCIE1
, PCIE1
, PCIE1
},
24 [0xf] = {PCIE1
, PCIE1
, PCIE1
, PCIE1
},
27 static u8 serdes2_cfg_tbl
[][SRDS2_MAX_LANES
] = {
28 [0x3] = {PCIE2
, PCIE2
, PCIE2
, PCIE2
},
29 [0x5] = {SRIO1
, SRIO1
, SRIO1
, SRIO1
},
30 [0x6] = {SRIO1
, SRIO1
, SRIO1
, SRIO1
},
31 [0x7] = {SRIO1
, SRIO1
, SRIO1
, SRIO1
},
32 [0x9] = {SRIO1
, SRIO1
, SRIO1
, SRIO1
},
33 [0xa] = {SRIO1
, SRIO1
, SRIO1
, SRIO1
},
34 [0xb] = {SRIO1
, SRIO1
, SRIO1
, SRIO1
},
35 [0xe] = {PCIE2
, PCIE2
, PCIE2
, PCIE2
},
36 [0xf] = {PCIE2
, PCIE2
, PCIE2
, PCIE2
},
39 int is_serdes_configured(enum srds_prtcl device
)
41 int ret
= (1 << device
) & serdes1_prtcl_map
;
46 return (1 << device
) & serdes2_prtcl_map
;
49 void fsl_serdes_init(void)
51 immap_t
*immap
= (immap_t
*) CONFIG_SYS_CCSRBAR
;
52 ccsr_gur_t
*gur
= &immap
->im_gur
;
53 u32 pordevsr
= in_be32(&gur
->pordevsr
);
54 u32 srds_cfg
= (pordevsr
& MPC8641_PORDEVSR_IO_SEL
) >>
55 MPC8641_PORDEVSR_IO_SEL_SHIFT
;
58 debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg
);
60 if (srds_cfg
>= ARRAY_SIZE(serdes1_cfg_tbl
)) {
61 printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg
);
64 for (lane
= 0; lane
< SRDS1_MAX_LANES
; lane
++) {
65 enum srds_prtcl lane_prtcl
= serdes1_cfg_tbl
[srds_cfg
][lane
];
66 serdes1_prtcl_map
|= (1 << lane_prtcl
);
69 if (srds_cfg
>= ARRAY_SIZE(serdes2_cfg_tbl
)) {
70 printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg
);
74 for (lane
= 0; lane
< SRDS2_MAX_LANES
; lane
++) {
75 enum srds_prtcl lane_prtcl
= serdes2_cfg_tbl
[srds_cfg
][lane
];
76 serdes2_prtcl_map
|= (1 << lane_prtcl
);