mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 18:59:44 +00:00
90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright 2011 Freescale Semiconductor, Inc.
|
|
* Author: Prabhakar Kushwaha <prabhakar@freescale.com>
|
|
*/
|
|
|
|
#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
|
|
#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);
|
|
}
|