u-boot/arch/arm/cpu/armv8/fsl-layerscape/ls1046a_serdes.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright 2016 Freescale Semiconductor, Inc.
 */

#include <common.h>
#include <asm/arch/fsl_serdes.h>
#include <asm/arch/immap_lsch2.h>

struct serdes_config {
	u32 protocol;
	u8 lanes[SRDS_MAX_LANES];
};

static struct serdes_config serdes1_cfg_tbl[] = {
	/* SerDes 1 */
	{0x3333, {SGMII_FM1_DTSEC9, SGMII_FM1_DTSEC10, SGMII_FM1_DTSEC5,
		  SGMII_FM1_DTSEC6} },
	{0x1133, {XFI_FM1_MAC9, XFI_FM1_MAC10, SGMII_FM1_DTSEC5,
		  SGMII_FM1_DTSEC6} },
	{0x1333, {XFI_FM1_MAC9, SGMII_FM1_DTSEC10, SGMII_FM1_DTSEC5,
		  SGMII_FM1_DTSEC6} },
	{0x2333, {SGMII_2500_FM1_DTSEC9, SGMII_FM1_DTSEC10, SGMII_FM1_DTSEC5,
		  SGMII_FM1_DTSEC6} },
	{0x2233, {SGMII_2500_FM1_DTSEC9, SGMII_2500_FM1_DTSEC10,
		  SGMII_FM1_DTSEC5, SGMII_FM1_DTSEC6} },
	{0x1040, {XFI_FM1_MAC9, NONE, QSGMII_FM1_A, NONE} },
	{0x2040, {SGMII_2500_FM1_DTSEC9, NONE, QSGMII_FM1_A, NONE} },
	{0x1163, {XFI_FM1_MAC9, XFI_FM1_MAC10, PCIE1, SGMII_FM1_DTSEC6} },
	{0x2263, {SGMII_2500_FM1_DTSEC9, SGMII_2500_FM1_DTSEC10, PCIE1,
		  SGMII_FM1_DTSEC6} },
	{0x3363, {SGMII_FM1_DTSEC9, SGMII_FM1_DTSEC10, PCIE1,
		  SGMII_FM1_DTSEC6} },
	{0x2223, {SGMII_2500_FM1_DTSEC9, SGMII_2500_FM1_DTSEC10,
		  SGMII_2500_FM1_DTSEC5, SGMII_FM1_DTSEC6} },
	{}
};

static struct serdes_config serdes2_cfg_tbl[] = {
	/* SerDes 2 */
	{0x8888, {PCIE1, PCIE1, PCIE1, PCIE1} },
	{0x5559, {PCIE1, PCIE2, PCIE3, SATA1} },
	{0x5577, {PCIE1, PCIE2, PCIE3, PCIE3} },
	{0x5506, {PCIE1, PCIE2, NONE, PCIE3} },
	{0x0506, {NONE, PCIE2, NONE, PCIE3} },
	{0x0559, {NONE, PCIE2, PCIE3, SATA1} },
	{0x5A59, {PCIE1, SGMII_FM1_DTSEC2, PCIE3, SATA1} },
	{0x5A06, {PCIE1, SGMII_FM1_DTSEC2, NONE, PCIE3} },
	{}
};

static struct serdes_config *serdes_cfg_tbl[] = {
	serdes1_cfg_tbl,
	serdes2_cfg_tbl,
};

enum srds_prtcl serdes_get_prtcl(int serdes, int cfg, int lane)
{
	struct serdes_config *ptr;

	if (serdes >= ARRAY_SIZE(serdes_cfg_tbl))
		return 0;

	ptr = serdes_cfg_tbl[serdes];
	while (ptr->protocol) {
		if (ptr->protocol == cfg)
			return ptr->lanes[lane];
		ptr++;
	}

	return 0;
}

int is_serdes_prtcl_valid(int serdes, u32 prtcl)
{
	int i;
	struct serdes_config *ptr;

	if (serdes >= ARRAY_SIZE(serdes_cfg_tbl))
		return 0;

	ptr = serdes_cfg_tbl[serdes];
	while (ptr->protocol) {
		if (ptr->protocol == prtcl)
			break;
		ptr++;
	}

	if (!ptr->protocol)
		return 0;

	for (i = 0; i < SRDS_MAX_LANES; i++) {
		if (ptr->lanes[i] != NONE)
			return 1;
	}

	return 0;
}