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/*
* Copyright 2014-2015 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <linux/errno.h>
#include <asm/arch/fsl_serdes.h>
#include <asm/arch/soc.h>
#include <fsl-mc/ldpaa_wriop.h>
#ifdef CONFIG_SYS_FSL_SRDS_1
static u8 serdes1_prtcl_map[SERDES_PRCTL_COUNT];
#endif
#ifdef CONFIG_SYS_FSL_SRDS_2
static u8 serdes2_prtcl_map[SERDES_PRCTL_COUNT];
#endif
#if defined(CONFIG_FSL_MC_ENET) && !defined(CONFIG_SPL_BUILD)
int xfi_dpmac[XFI8 + 1];
int sgmii_dpmac[SGMII16 + 1];
#endif
__weak void wriop_init_dpmac_qsgmii(int sd, int lane_prtcl)
{
return;
}
/*
*The return value of this func is the serdes protocol used.
*Typically this function is called number of times depending
*upon the number of serdes blocks in the Silicon.
*Zero is used to denote that no serdes was enabled,
*this is the case when golden RCW was used where DPAA2 bring was
*intentionally removed to achieve boot to prompt
*/
__weak int serdes_get_number(int serdes, int cfg)
{
return cfg;
}
int is_serdes_configured(enum srds_prtcl device)
{
int ret = 0;
#ifdef CONFIG_SYS_FSL_SRDS_1
if (!serdes1_prtcl_map[NONE])
fsl_serdes_init();
ret |= serdes1_prtcl_map[device];
#endif
#ifdef CONFIG_SYS_FSL_SRDS_2
if (!serdes2_prtcl_map[NONE])
fsl_serdes_init();
ret |= serdes2_prtcl_map[device];
#endif
return !!ret;
}
int serdes_get_first_lane(u32 sd, enum srds_prtcl device)
{
struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
u32 cfg = 0;
int i;
switch (sd) {
#ifdef CONFIG_SYS_FSL_SRDS_1
case FSL_SRDS_1:
cfg = gur_in32(&gur->rcwsr[FSL_CHASSIS3_SRDS1_REGSR - 1]);
cfg &= FSL_CHASSIS3_SRDS1_PRTCL_MASK;
cfg >>= FSL_CHASSIS3_SRDS1_PRTCL_SHIFT;
break;
#endif
#ifdef CONFIG_SYS_FSL_SRDS_2
case FSL_SRDS_2:
cfg = gur_in32(&gur->rcwsr[FSL_CHASSIS3_SRDS2_REGSR - 1]);
cfg &= FSL_CHASSIS3_SRDS2_PRTCL_MASK;
cfg >>= FSL_CHASSIS3_SRDS2_PRTCL_SHIFT;
break;
#endif
default:
printf("invalid SerDes%d\n", sd);
break;
}
cfg = serdes_get_number(sd, cfg);
/* Is serdes enabled at all? */
if (cfg == 0)
return -ENODEV;
for (i = 0; i < SRDS_MAX_LANES; i++) {
if (serdes_get_prtcl(sd, cfg, i) == device)
return i;
}
return -ENODEV;
}
void serdes_init(u32 sd, u32 sd_addr, u32 rcwsr, u32 sd_prctl_mask,
u32 sd_prctl_shift, u8 serdes_prtcl_map[SERDES_PRCTL_COUNT])
{
struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
u32 cfg;
int lane;
if (serdes_prtcl_map[NONE])
return;
memset(serdes_prtcl_map, 0, sizeof(u8) * SERDES_PRCTL_COUNT);
cfg = gur_in32(&gur->rcwsr[rcwsr - 1]) & sd_prctl_mask;
cfg >>= sd_prctl_shift;
cfg = serdes_get_number(sd, cfg);
printf("Using SERDES%d Protocol: %d (0x%x)\n", sd + 1, cfg, cfg);
if (!is_serdes_prtcl_valid(sd, cfg))
printf("SERDES%d[PRTCL] = 0x%x is not valid\n", sd + 1, cfg);
for (lane = 0; lane < SRDS_MAX_LANES; lane++) {
enum srds_prtcl lane_prtcl = serdes_get_prtcl(sd, cfg, lane);
if (unlikely(lane_prtcl >= SERDES_PRCTL_COUNT))
debug("Unknown SerDes lane protocol %d\n", lane_prtcl);
else {
serdes_prtcl_map[lane_prtcl] = 1;
#if defined(CONFIG_FSL_MC_ENET) && !defined(CONFIG_SPL_BUILD)
switch (lane_prtcl) {
case QSGMII_A:
case QSGMII_B:
case QSGMII_C:
case QSGMII_D:
wriop_init_dpmac_qsgmii(sd, (int)lane_prtcl);
break;
default:
if (lane_prtcl >= XFI1 && lane_prtcl <= XFI8)
wriop_init_dpmac(sd,
xfi_dpmac[lane_prtcl],
(int)lane_prtcl);
if (lane_prtcl >= SGMII1 &&
lane_prtcl <= SGMII16)
wriop_init_dpmac(sd, sgmii_dpmac[
lane_prtcl],
(int)lane_prtcl);
break;
}
#endif
}
}
/* Set the first element to indicate serdes has been initialized */
serdes_prtcl_map[NONE] = 1;
}
void fsl_serdes_init(void)
{
#if defined(CONFIG_FSL_MC_ENET) && !defined(CONFIG_SPL_BUILD)
int i , j;
for (i = XFI1, j = 1; i <= XFI8; i++, j++)
xfi_dpmac[i] = j;
for (i = SGMII1, j = 1; i <= SGMII16; i++, j++)
sgmii_dpmac[i] = j;
#endif
#ifdef CONFIG_SYS_FSL_SRDS_1
serdes_init(FSL_SRDS_1,
CONFIG_SYS_FSL_LSCH3_SERDES_ADDR,
FSL_CHASSIS3_SRDS1_REGSR,
FSL_CHASSIS3_SRDS1_PRTCL_MASK,
FSL_CHASSIS3_SRDS1_PRTCL_SHIFT,
serdes1_prtcl_map);
#endif
#ifdef CONFIG_SYS_FSL_SRDS_2
serdes_init(FSL_SRDS_2,
CONFIG_SYS_FSL_LSCH3_SERDES_ADDR + FSL_SRDS_2 * 0x10000,
FSL_CHASSIS3_SRDS2_REGSR,
FSL_CHASSIS3_SRDS2_PRTCL_MASK,
FSL_CHASSIS3_SRDS2_PRTCL_SHIFT,
serdes2_prtcl_map);
#endif
}
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