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/*
* Copyright (C) 2008 Freescale Semicondutor, Inc.
* Dave Liu <daveliu@freescale.com>
*
* 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.
*/
#include <config.h>
#include <common.h>
#include <asm/io.h>
#include <asm/immap_85xx.h>
/* PORDEVSR register */
#define GUTS_PORDEVSR_OFFS 0xc
#define GUTS_PORDEVSR_SERDES2_IO_SEL 0x38000000
#define GUTS_PORDEVSR_SERDES2_IO_SEL_SHIFT 27
/* SerDes CR0 register */
#define FSL_SRDSCR0_OFFS 0x0
#define FSL_SRDSCR0_TXEQA_MASK 0x00007000
#define FSL_SRDSCR0_TXEQA_SGMII 0x00004000
#define FSL_SRDSCR0_TXEQA_SATA 0x00001000
#define FSL_SRDSCR0_TXEQE_MASK 0x00000700
#define FSL_SRDSCR0_TXEQE_SGMII 0x00000400
#define FSL_SRDSCR0_TXEQE_SATA 0x00000100
/* SerDes CR1 register */
#define FSL_SRDSCR1_OFFS 0x4
#define FSL_SRDSCR1_LANEA_MASK 0x80200000
#define FSL_SRDSCR1_LANEA_OFF 0x80200000
#define FSL_SRDSCR1_LANEE_MASK 0x08020000
#define FSL_SRDSCR1_LANEE_OFF 0x08020000
/* SerDes CR2 register */
#define FSL_SRDSCR2_OFFS 0x8
#define FSL_SRDSCR2_EICA_MASK 0x00001f00
#define FSL_SRDSCR2_EICA_SGMII 0x00000400
#define FSL_SRDSCR2_EICA_SATA 0x00001400
#define FSL_SRDSCR2_EICE_MASK 0x0000001f
#define FSL_SRDSCR2_EICE_SGMII 0x00000004
#define FSL_SRDSCR2_EICE_SATA 0x00000014
/* SerDes CR3 register */
#define FSL_SRDSCR3_OFFS 0xc
#define FSL_SRDSCR3_LANEA_MASK 0x3f000700
#define FSL_SRDSCR3_LANEA_SGMII 0x00000000
#define FSL_SRDSCR3_LANEA_SATA 0x15000500
#define FSL_SRDSCR3_LANEE_MASK 0x003f0007
#define FSL_SRDSCR3_LANEE_SGMII 0x00000000
#define FSL_SRDSCR3_LANEE_SATA 0x00150005
void fsl_serdes_init(void)
{
void *guts = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
void *sd = (void *)CONFIG_SYS_MPC85xx_SERDES2_ADDR;
u32 pordevsr = in_be32(guts + GUTS_PORDEVSR_OFFS);
u32 srds2_io_sel;
u32 tmp;
/* parse the SRDS2_IO_SEL of PORDEVSR */
srds2_io_sel = (pordevsr & GUTS_PORDEVSR_SERDES2_IO_SEL)
>> GUTS_PORDEVSR_SERDES2_IO_SEL_SHIFT;
switch (srds2_io_sel) {
case 1: /* Lane A - SATA1, Lane E - SATA2 */
/* CR 0 */
tmp = in_be32(sd + FSL_SRDSCR0_OFFS);
tmp &= ~FSL_SRDSCR0_TXEQA_MASK;
tmp |= FSL_SRDSCR0_TXEQA_SATA;
tmp &= ~FSL_SRDSCR0_TXEQE_MASK;
tmp |= FSL_SRDSCR0_TXEQE_SATA;
out_be32(sd + FSL_SRDSCR0_OFFS, tmp);
/* CR 1 */
tmp = in_be32(sd + FSL_SRDSCR1_OFFS);
tmp &= ~FSL_SRDSCR1_LANEA_MASK;
tmp &= ~FSL_SRDSCR1_LANEE_MASK;
out_be32(sd + FSL_SRDSCR1_OFFS, tmp);
/* CR 2 */
tmp = in_be32(sd + FSL_SRDSCR2_OFFS);
tmp &= ~FSL_SRDSCR2_EICA_MASK;
tmp |= FSL_SRDSCR2_EICA_SATA;
tmp &= ~FSL_SRDSCR2_EICE_MASK;
tmp |= FSL_SRDSCR2_EICE_SATA;
out_be32(sd + FSL_SRDSCR2_OFFS, tmp);
/* CR 3 */
tmp = in_be32(sd + FSL_SRDSCR3_OFFS);
tmp &= ~FSL_SRDSCR3_LANEA_MASK;
tmp |= FSL_SRDSCR3_LANEA_SATA;
tmp &= ~FSL_SRDSCR3_LANEE_MASK;
tmp |= FSL_SRDSCR3_LANEE_SATA;
out_be32(sd + FSL_SRDSCR3_OFFS, tmp);
break;
case 3: /* Lane A - SATA1, Lane E - disabled */
/* CR 0 */
tmp = in_be32(sd + FSL_SRDSCR0_OFFS);
tmp &= ~FSL_SRDSCR0_TXEQA_MASK;
tmp |= FSL_SRDSCR0_TXEQA_SATA;
out_be32(sd + FSL_SRDSCR0_OFFS, tmp);
/* CR 1 */
tmp = in_be32(sd + FSL_SRDSCR1_OFFS);
tmp &= ~FSL_SRDSCR1_LANEE_MASK;
tmp |= FSL_SRDSCR1_LANEE_OFF;
out_be32(sd + FSL_SRDSCR1_OFFS, tmp);
/* CR 2 */
tmp = in_be32(sd + FSL_SRDSCR2_OFFS);
tmp &= ~FSL_SRDSCR2_EICA_MASK;
tmp |= FSL_SRDSCR2_EICA_SATA;
out_be32(sd + FSL_SRDSCR2_OFFS, tmp);
/* CR 3 */
tmp = in_be32(sd + FSL_SRDSCR3_OFFS);
tmp &= ~FSL_SRDSCR3_LANEA_MASK;
tmp |= FSL_SRDSCR3_LANEA_SATA;
out_be32(sd + FSL_SRDSCR3_OFFS, tmp);
break;
case 4: /* Lane A - eTSEC1 SGMII, Lane E - eTSEC3 SGMII */
/* CR 0 */
tmp = in_be32(sd + FSL_SRDSCR0_OFFS);
tmp &= ~FSL_SRDSCR0_TXEQA_MASK;
tmp |= FSL_SRDSCR0_TXEQA_SGMII;
tmp &= ~FSL_SRDSCR0_TXEQE_MASK;
tmp |= FSL_SRDSCR0_TXEQE_SGMII;
out_be32(sd + FSL_SRDSCR0_OFFS, tmp);
/* CR 1 */
tmp = in_be32(sd + FSL_SRDSCR1_OFFS);
tmp &= ~FSL_SRDSCR1_LANEA_MASK;
tmp &= ~FSL_SRDSCR1_LANEE_MASK;
out_be32(sd + FSL_SRDSCR1_OFFS, tmp);
/* CR 2 */
tmp = in_be32(sd + FSL_SRDSCR2_OFFS);
tmp &= ~FSL_SRDSCR2_EICA_MASK;
tmp |= FSL_SRDSCR2_EICA_SGMII;
tmp &= ~FSL_SRDSCR2_EICE_MASK;
tmp |= FSL_SRDSCR2_EICE_SGMII;
out_be32(sd + FSL_SRDSCR2_OFFS, tmp);
/* CR 3 */
tmp = in_be32(sd + FSL_SRDSCR3_OFFS);
tmp &= ~FSL_SRDSCR3_LANEA_MASK;
tmp |= FSL_SRDSCR3_LANEA_SGMII;
tmp &= ~FSL_SRDSCR3_LANEE_MASK;
tmp |= FSL_SRDSCR3_LANEE_SGMII;
out_be32(sd + FSL_SRDSCR3_OFFS, tmp);
break;
case 6: /* Lane A - eTSEC1 SGMII, Lane E - disabled */
/* CR 0 */
tmp = in_be32(sd + FSL_SRDSCR0_OFFS);
tmp &= ~FSL_SRDSCR0_TXEQA_MASK;
tmp |= FSL_SRDSCR0_TXEQA_SGMII;
out_be32(sd + FSL_SRDSCR0_OFFS, tmp);
/* CR 1 */
tmp = in_be32(sd + FSL_SRDSCR1_OFFS);
tmp &= ~FSL_SRDSCR1_LANEE_MASK;
tmp |= FSL_SRDSCR1_LANEE_OFF;
out_be32(sd + FSL_SRDSCR1_OFFS, tmp);
/* CR 2 */
tmp = in_be32(sd + FSL_SRDSCR2_OFFS);
tmp &= ~FSL_SRDSCR2_EICA_MASK;
tmp |= FSL_SRDSCR2_EICA_SGMII;
out_be32(sd + FSL_SRDSCR2_OFFS, tmp);
/* CR 3 */
tmp = in_be32(sd + FSL_SRDSCR3_OFFS);
tmp &= ~FSL_SRDSCR3_LANEA_MASK;
tmp |= FSL_SRDSCR3_LANEA_SGMII;
out_be32(sd + FSL_SRDSCR3_OFFS, tmp);
break;
case 7: /* Lane A - disabled, Lane E - disabled */
/* CR 1 */
tmp = in_be32(sd + FSL_SRDSCR1_OFFS);
tmp &= ~FSL_SRDSCR1_LANEA_MASK;
tmp |= FSL_SRDSCR1_LANEA_OFF;
tmp &= ~FSL_SRDSCR1_LANEE_MASK;
tmp |= FSL_SRDSCR1_LANEE_OFF;
out_be32(sd + FSL_SRDSCR1_OFFS, tmp);
break;
default:
break;
}
}
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