arch/powerpc/cpu/mpc85xx/p2041_serdes.c

/*
 * Copyright 2010-2011 Freescale Semiconductor, Inc.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <asm/fsl_serdes.h>
#include <asm/processor.h>
#include <asm/io.h>
#include "fsl_corenet_serdes.h"

static u8 serdes_cfg_tbl[][SRDS_MAX_LANES] = {
	[0x2] = {NONE, NONE, PCIE1, PCIE1, SRIO1, SRIO1, SRIO1, SRIO1,
		NONE, NONE, SGMII_FM1_DTSEC1, SGMII_FM1_DTSEC2,
		SGMII_FM1_DTSEC3, SGMII_FM1_DTSEC4, NONE, NONE, NONE, NONE, },
	[0x5] = {NONE, NONE, PCIE1, PCIE3, PCIE2, PCIE2, PCIE2, PCIE2,
		NONE, NONE, SGMII_FM1_DTSEC1, SGMII_FM1_DTSEC2,
		SGMII_FM1_DTSEC3, SGMII_FM1_DTSEC4, NONE, NONE, NONE, NONE, },
	[0x8] = {NONE, NONE, SGMII_FM1_DTSEC1, SGMII_FM1_DTSEC2, PCIE2,
		PCIE2, PCIE2, PCIE2, NONE, NONE, NONE, NONE, SATA1,
		SATA2, NONE, NONE, NONE, NONE, },
	[0x9] = {NONE, NONE, SGMII_FM1_DTSEC1, SGMII_FM1_DTSEC2, PCIE2,
		PCIE2, PCIE2, PCIE2, NONE, NONE, XAUI_FM1, XAUI_FM1,
		XAUI_FM1, XAUI_FM1, NONE, NONE, NONE, NONE, },
	[0xa] = {NONE, NONE, SGMII_FM1_DTSEC1, SGMII_FM1_DTSEC2, PCIE2,
		PCIE2, PCIE2, PCIE2, NONE, NONE, PCIE3, PCIE3, PCIE3,
		PCIE3, NONE, NONE, NONE, NONE, },
	[0xf] = {NONE, NONE, SGMII_FM1_DTSEC1, SGMII_FM1_DTSEC2, SRIO2,
		SRIO2, SRIO1, SRIO1, NONE, NONE, PCIE3, SGMII_FM1_DTSEC5,
		SGMII_FM1_DTSEC3, SGMII_FM1_DTSEC4, NONE, NONE, NONE, NONE, },
	[0x14] = {NONE, NONE, SGMII_FM1_DTSEC1, SGMII_FM1_DTSEC2, PCIE2,
		PCIE2, SRIO1, SRIO1, NONE, NONE, AURORA,
		SGMII_FM1_DTSEC5, SGMII_FM1_DTSEC3, SGMII_FM1_DTSEC4, NONE,
		NONE, NONE, NONE, },
	[0x16] = {NONE, NONE, PCIE1, PCIE3, PCIE2, PCIE2, SGMII_FM1_DTSEC3,
		SGMII_FM1_DTSEC4, NONE, NONE, NONE, NONE, SATA1, SATA2, NONE,
		NONE, NONE, NONE, },
	[0x17] = {NONE, NONE, PCIE1, PCIE3, PCIE2, PCIE2, SGMII_FM1_DTSEC3,
		SGMII_FM1_DTSEC4, NONE, NONE, XAUI_FM1, XAUI_FM1, XAUI_FM1,
		XAUI_FM1, NONE, NONE, NONE, NONE, },
	[0x19] = {NONE, NONE, SGMII_FM1_DTSEC1, SGMII_FM1_DTSEC2, PCIE2,
		PCIE2, SGMII_FM1_DTSEC3, SGMII_FM1_DTSEC4, NONE, NONE,
		NONE, NONE, SATA1, SATA2, NONE, NONE, NONE, NONE, },
	[0x1a] = {NONE, NONE, SGMII_FM1_DTSEC1, SGMII_FM1_DTSEC2, SRIO2,
		SRIO2, SGMII_FM1_DTSEC3, SGMII_FM1_DTSEC4, NONE, NONE,
		NONE, NONE, SATA1, SATA2, NONE, NONE, NONE, NONE, },
	[0x1c] = {NONE, NONE, PCIE1, SGMII_FM1_DTSEC2, PCIE2, PCIE2,
		SGMII_FM1_DTSEC3, SGMII_FM1_DTSEC4, NONE, NONE, AURORA,
		SGMII_FM1_DTSEC5, NONE, NONE, NONE, NONE, NONE, NONE, },
};

enum srds_prtcl serdes_get_prtcl(int cfg, int lane)
{
	enum srds_prtcl prtcl;
	u32 svr = get_svr();
	u32 ver = SVR_SOC_VER(svr);

	if (!serdes_lane_enabled(lane))
		return NONE;

	prtcl = serdes_cfg_tbl[cfg][lane];

	/* P2040[e] does not support XAUI */
	if (((ver == SVR_P2040) || (ver == SVR_P2040_E)) && (prtcl == XAUI_FM1))
		prtcl = NONE;

	return prtcl;
}

int is_serdes_prtcl_valid(u32 prtcl)
{
	int i;
	u32 svr = get_svr();
	u32 ver = SVR_SOC_VER(svr);

	if (prtcl > ARRAY_SIZE(serdes_cfg_tbl))
		return 0;

	/* P2040[e] does not support XAUI */
	if (((ver == SVR_P2040) || (ver == SVR_P2040_E)) && (prtcl == XAUI_FM1))
		return 0;

	for (i = 0; i < SRDS_MAX_LANES; i++) {
		if (serdes_cfg_tbl[prtcl][i] != NONE)
			return 1;
	}

	return 0;
}