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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2013 Freescale Semiconductor, Inc.
*/
#include <config.h>
#include <common.h>
#include <log.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;
struct serdes_config {
u32 protocol;
u8 lanes[SRDS1_MAX_LANES];
};
static const struct serdes_config serdes1_cfg_tbl[] = {
/* SerDes 1 */
{1, {PCIE1, PCIE1, PCIE1, PCIE1} },
{2, {PCIE1, PCIE1, PCIE1, PCIE1} },
{3, {PCIE1, PCIE1, NONE, NONE} },
{4, {PCIE1, PCIE1, NONE, NONE} },
{5, {PCIE1, NONE, NONE, NONE} },
{6, {PCIE1, NONE, NONE, NONE} },
{}
};
int is_serdes_configured(enum srds_prtcl device)
{
if (!(serdes1_prtcl_map & (1 << NONE)))
fsl_serdes_init();
return (1 << device) & serdes1_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;
const struct serdes_config *ptr;
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;
}
ptr = &serdes1_cfg_tbl[srds_cfg];
if (!ptr->protocol)
return;
for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
enum srds_prtcl lane_prtcl = ptr->lanes[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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