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/*
* Copyright 2010 Freescale Semiconductor, Inc.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
#include <common.h>
#include <asm/io.h>
#include <asm/immap_86xx.h>
#include <asm/fsl_serdes.h>
#define SRDS1_MAX_LANES 4
#define SRDS2_MAX_LANES 4
static u32 serdes1_prtcl_map, serdes2_prtcl_map;
static u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
[0x2] = {PCIE1, PCIE1, PCIE1, PCIE1},
[0x3] = {PCIE1, PCIE1, PCIE1, PCIE1},
[0x5] = {PCIE1, PCIE1, PCIE1, PCIE1},
[0x6] = {PCIE1, PCIE1, PCIE1, PCIE1},
[0x7] = {PCIE1, PCIE1, PCIE1, PCIE1},
[0xf] = {PCIE1, PCIE1, PCIE1, PCIE1},
};
static u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = {
[0x3] = {PCIE2, PCIE2, PCIE2, PCIE2},
[0x5] = {SRIO1, SRIO1, SRIO1, SRIO1},
[0x6] = {SRIO1, SRIO1, SRIO1, SRIO1},
[0x7] = {SRIO1, SRIO1, SRIO1, SRIO1},
[0x9] = {SRIO1, SRIO1, SRIO1, SRIO1},
[0xa] = {SRIO1, SRIO1, SRIO1, SRIO1},
[0xb] = {SRIO1, SRIO1, SRIO1, SRIO1},
[0xe] = {PCIE2, PCIE2, PCIE2, PCIE2},
[0xf] = {PCIE2, PCIE2, PCIE2, PCIE2},
};
int is_serdes_configured(enum srds_prtcl device)
{
int ret = (1 << device) & serdes1_prtcl_map;
if (ret)
return ret;
return (1 << device) & serdes2_prtcl_map;
}
void fsl_serdes_init(void)
{
immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR;
ccsr_gur_t *gur = &immap->im_gur;
u32 pordevsr = in_be32(&gur->pordevsr);
u32 srds_cfg = (pordevsr & MPC8641_PORDEVSR_IO_SEL) >>
MPC8641_PORDEVSR_IO_SEL_SHIFT;
int lane;
debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
return;
}
for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][lane];
serdes1_prtcl_map |= (1 << lane_prtcl);
}
if (srds_cfg > ARRAY_SIZE(serdes2_cfg_tbl)) {
printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
return;
}
for (lane = 0; lane < SRDS2_MAX_LANES; lane++) {
enum srds_prtcl lane_prtcl = serdes2_cfg_tbl[srds_cfg][lane];
serdes2_prtcl_map |= (1 << lane_prtcl);
}
}
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