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/*
* Copyright 2010-2011 Freescale Semiconductor, Inc.
* Author: Roy Zang <tie-fei.zang@freescale.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <common.h>
#include <asm/io.h>
#include <asm/immap_85xx.h>
#include <asm/fsl_serdes.h>
#define SRDS1_MAX_LANES 4
static u32 serdes1_prtcl_map;
static const u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
[0x00] = {PCIE1, PCIE2, NONE, NONE},
[0x01] = {PCIE1, PCIE2, PCIE3, NONE},
[0x02] = {PCIE1, PCIE2, PCIE3, SGMII_FM1_DTSEC2},
[0x03] = {PCIE1, PCIE2, SGMII_FM1_DTSEC1, SGMII_FM1_DTSEC2},
};
int is_serdes_configured(enum srds_prtcl device)
{
int ret;
if (!(serdes1_prtcl_map & (1 << NONE)))
fsl_serdes_init();
ret = (1 << device) & serdes1_prtcl_map;
return ret;
}
void fsl_serdes_init(void)
{
ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
u32 pordevsr = in_be32(&gur->pordevsr);
u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
MPC85xx_PORDEVSR_IO_SEL_SHIFT;
int lane;
if (serdes1_prtcl_map & (1 << NONE))
return;
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);
}
/* Set the first bit to indicate serdes has been initialized */
serdes1_prtcl_map |= (1 << NONE);
}
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