1 /*
2  * Copyright 2010 Freescale Semiconductor, Inc.
3  *
4  * See file CREDITS for list of people who contributed to this
5  * project.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License as
9  * published by the Free Software Foundation; either version 2 of
10  * the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20  * MA 02111-1307 USA
21  */
22 
23 #include <config.h>
24 #include <common.h>
25 #include <asm/io.h>
26 #include <asm/immap_85xx.h>
27 #include <asm/fsl_serdes.h>
28 
29 #define SRDS1_MAX_LANES		8
30 
31 static u32 serdes1_prtcl_map;
32 
33 static u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
34 	[0x3] = {PCIE1, PCIE1, PCIE1, PCIE1, SRIO1, SRIO1, SRIO1, SRIO1},
35 	[0x4] = {PCIE1, PCIE1, PCIE1, PCIE1, SRIO1, SRIO1, SRIO1, SRIO1},
36 	[0x5] = {NONE, NONE, NONE, NONE, SRIO1, SRIO1, SRIO1, SRIO1},
37 	[0x6] = {NONE, NONE, NONE, NONE, SRIO1, SRIO1, SRIO1, SRIO1},
38 	[0x7] = {PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1},
39 };
40 
41 int is_serdes_configured(enum srds_prtcl prtcl)
42 {
43 	return (1 << prtcl) & serdes1_prtcl_map;
44 }
45 
46 void fsl_serdes_init(void)
47 {
48 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
49 	u32 pordevsr = in_be32(&gur->pordevsr);
50 	u32 srds1_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
51 				MPC85xx_PORDEVSR_IO_SEL_SHIFT;
52 	int lane;
53 
54 	debug("PORDEVSR[IO_SEL] = %x\n", srds1_cfg);
55 
56 	if (srds1_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
57 		printf("Invalid PORDEVSR[IO_SEL] = %d\n", srds1_cfg);
58 		return ;
59 	}
60 
61 	for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
62 		enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds1_cfg][lane];
63 		serdes1_prtcl_map |= (1 << lane_prtcl);
64 	}
65 }
66