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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2011 Freescale Semiconductor, Inc.
* Author: Prabhakar Kushwaha <prabhakar@freescale.com>
*/
#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
#define SRDS2_MAX_LANES 2
static u32 serdes1_prtcl_map, serdes2_prtcl_map;
static const u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
[0x00] = {NONE, NONE, NONE, NONE},
[0x01] = {PCIE1, PCIE2, SGMII_TSEC2, SGMII_TSEC3},
[0x02] = {PCIE1, SGMII_TSEC1, SGMII_TSEC2, SGMII_TSEC3},
[0x03] = {NONE, SGMII_TSEC1, SGMII_TSEC2, SGMII_TSEC3},
};
static const u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = {
[0x00] = {NONE, NONE},
[0x01] = {SATA1, SATA2},
[0x02] = {SATA1, SATA2},
[0x03] = {PCIE1, PCIE2},
};
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;
if (ret)
return ret;
if (!(serdes2_prtcl_map & (1 << NONE)))
fsl_serdes_init();
return (1 << device) & serdes2_prtcl_map;
}
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) &&
serdes2_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);
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);
}
/* Set the first bit to indicate serdes has been initialized */
serdes2_prtcl_map |= (1 << NONE);
}
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