/*
 * TC956x PMA layer
 *
 * tc956x_pma.c
 *
 * Copyright (C) 2021 Toshiba Electronic Devices & Storage Corporation
 *
 *
 * 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, 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

/*! History:
 *  05 Nov 2020 : Initial version
 *  VERSION     : 00-01
 *
 *  15 Mar 2021 : Base lined
 *  VERSION     : 01-00
 */

#include "common.h"
#include "tc956xmac.h"
#include "tc956x_pma.h"
#ifdef TC956X
static int tc956x_pma_init(struct tc956xmac_priv *priv, void __iomem *pmaaddr)
{

	u32 reg_value;

	/*Power on CML buffer*/
	reg_value = readl(pmaaddr + XGMAC_PMA_GL_PM_CFG0);
	reg_value = XGMAC_PMA_OFFSET0;
	writel(reg_value, pmaaddr + XGMAC_PMA_GL_PM_CFG0);

	/*Switch clock from C0_REFCK to CLK_REF_I*/
	writel(XGMAC_PMA_OFFSET1, pmaaddr + XGMAC_PMA_CFG_0_1_R0);
	writel(XGMAC_PMA_OFFSET1, pmaaddr + XGMAC_PMA_CFG_0_1_R1);
	writel(XGMAC_PMA_OFFSET1, pmaaddr + XGMAC_PMA_CFG_0_1_R2);
	writel(XGMAC_PMA_OFFSET1, pmaaddr + XGMAC_PMA_CFG_0_1_R3);
	writel(XGMAC_PMA_OFFSET1, pmaaddr + XGMAC_PMA_CFG_0_1_R4);

	/*Disable C0_REFCK*/
	writel(XGMAC_PMA_OFFSET0, pmaaddr + XGMAC_PMA_HWT_REFCK_EN_R0);
	writel(XGMAC_PMA_OFFSET0, pmaaddr + XGMAC_PMA_HWT_REFCK_TERM_EN_R0);
	writel(XGMAC_PMA_OFFSET0, pmaaddr + XGMAC_PMA_HWT_REFCK_R_EN_R1);
	writel(XGMAC_PMA_OFFSET0, pmaaddr + XGMAC_PMA_HWT_REFCK_TERM_EN_R1);
	writel(XGMAC_PMA_OFFSET0, pmaaddr + XGMAC_PMA_HWT_REFCK_R_EN_R2);
	writel(XGMAC_PMA_OFFSET0, pmaaddr + XGMAC_PMA_HWT_REFCK_TERM_EN_R2);
	writel(XGMAC_PMA_OFFSET0, pmaaddr + XGMAC_PMA_HWT_REFCK_R_EN_R3);
	writel(XGMAC_PMA_OFFSET0, pmaaddr + XGMAC_PMA_HWT_REFCK_TERM_EN_R3);
	writel(XGMAC_PMA_OFFSET0, pmaaddr + XGMAC_PMA_HWT_REFCK_R_EN_R4);
	writel(XGMAC_PMA_OFFSET0, pmaaddr + XGMAC_PMA_HWT_REFCK_TERM_EN_R4);

	/*ASPETH mode decoded from sp_sel of NEMAC0CTL*/
	/*PMA PLL enable*/
	//writel(XGMAC_PMA_OFFSET2, pmaaddr + XGMAC_PCS_GL_PC_CNT0); //Commented as per monitor script

	return 0;

}

const struct tc956xmac_pma_ops tc956x_pma_ops = {
	.init = tc956x_pma_init,
};
#endif