mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-15 09:27:35 +00:00
86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
|
/*
|
||
|
|
* 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] = {
|
||
|
|
[0x1] = {PCIE1, PCIE1, PCIE1, PCIE1},
|
||
|
|
[0x4] = {PCIE1, PCIE1, PCIE1, PCIE1},
|
||
|
|
[0x7] = {NONE, NONE, NONE, NONE},
|
||
|
|
};
|
||
|
|
|
||
|
|
static u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = {
|
||
|
|
[0x0] = {PCIE2, PCIE2, PCIE2, PCIE2},
|
||
|
|
[0x4] = {PCIE2, PCIE2, PCIE2, PCIE2},
|
||
|
|
[0x7] = {NONE, NONE, NONE, NONE},
|
||
|
|
};
|
||
|
|
|
||
|
|
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 & MPC8610_PORDEVSR_IO_SEL) >>
|
||
|
|
MPC8610_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);
|
||
|
|
}
|
||
|
|
}
|