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https://github.com/AsahiLinux/u-boot
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251 lines
7.3 KiB
C
251 lines
7.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2008,2010 Freescale Semiconductor, Inc.
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* Dave Liu <daveliu@freescale.com>
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*/
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#include <config.h>
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#include <common.h>
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#include <log.h>
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#include <asm/io.h>
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#include <asm/immap_85xx.h>
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#include <asm/fsl_serdes.h>
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/* PORDEVSR register */
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#define GUTS_PORDEVSR_OFFS 0xc
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#define GUTS_PORDEVSR_SERDES2_IO_SEL 0x38000000
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#define GUTS_PORDEVSR_SERDES2_IO_SEL_SHIFT 27
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/* SerDes CR0 register */
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#define FSL_SRDSCR0_OFFS 0x0
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#define FSL_SRDSCR0_TXEQA_MASK 0x00007000
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#define FSL_SRDSCR0_TXEQA_SGMII 0x00004000
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#define FSL_SRDSCR0_TXEQA_SATA 0x00001000
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#define FSL_SRDSCR0_TXEQE_MASK 0x00000700
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#define FSL_SRDSCR0_TXEQE_SGMII 0x00000400
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#define FSL_SRDSCR0_TXEQE_SATA 0x00000100
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/* SerDes CR1 register */
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#define FSL_SRDSCR1_OFFS 0x4
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#define FSL_SRDSCR1_LANEA_MASK 0x80200000
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#define FSL_SRDSCR1_LANEA_OFF 0x80200000
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#define FSL_SRDSCR1_LANEE_MASK 0x08020000
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#define FSL_SRDSCR1_LANEE_OFF 0x08020000
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/* SerDes CR2 register */
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#define FSL_SRDSCR2_OFFS 0x8
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#define FSL_SRDSCR2_EICA_MASK 0x00001f00
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#define FSL_SRDSCR2_EICA_SGMII 0x00000400
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#define FSL_SRDSCR2_EICA_SATA 0x00001400
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#define FSL_SRDSCR2_EICE_MASK 0x0000001f
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#define FSL_SRDSCR2_EICE_SGMII 0x00000004
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#define FSL_SRDSCR2_EICE_SATA 0x00000014
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/* SerDes CR3 register */
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#define FSL_SRDSCR3_OFFS 0xc
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#define FSL_SRDSCR3_LANEA_MASK 0x3f000700
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#define FSL_SRDSCR3_LANEA_SGMII 0x00000000
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#define FSL_SRDSCR3_LANEA_SATA 0x15000500
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#define FSL_SRDSCR3_LANEE_MASK 0x003f0007
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#define FSL_SRDSCR3_LANEE_SGMII 0x00000000
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#define FSL_SRDSCR3_LANEE_SATA 0x00150005
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#define SRDS1_MAX_LANES 8
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#define SRDS2_MAX_LANES 2
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static u32 serdes1_prtcl_map, serdes2_prtcl_map;
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static u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
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[0x2] = {PCIE1, PCIE1, PCIE1, PCIE1, NONE, NONE, NONE, NONE},
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[0x3] = {PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1},
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[0x5] = {PCIE1, PCIE1, PCIE1, PCIE1, PCIE2, PCIE2, PCIE2, PCIE2},
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[0x7] = {PCIE1, PCIE1, PCIE1, PCIE1, PCIE2, PCIE2, PCIE3, PCIE3},
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};
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static u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = {
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[0x1] = {SATA1, SATA2},
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[0x3] = {SATA1, NONE},
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[0x4] = {SGMII_TSEC1, SGMII_TSEC3},
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[0x6] = {SGMII_TSEC1, NONE},
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};
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int is_serdes_configured(enum srds_prtcl device)
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{
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int ret;
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if (!(serdes1_prtcl_map & (1 << NONE)))
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fsl_serdes_init();
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ret = (1 << device) & serdes1_prtcl_map;
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if (ret)
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return ret;
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if (!(serdes2_prtcl_map & (1 << NONE)))
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fsl_serdes_init();
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return (1 << device) & serdes2_prtcl_map;
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}
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void fsl_serdes_init(void)
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{
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void *guts = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
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void *sd = (void *)CONFIG_SYS_MPC85xx_SERDES2_ADDR;
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u32 pordevsr = in_be32(guts + GUTS_PORDEVSR_OFFS);
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u32 srds1_io_sel, srds2_io_sel;
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u32 tmp;
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int lane;
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if (serdes1_prtcl_map & (1 << NONE) &&
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serdes2_prtcl_map & (1 << NONE))
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return;
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srds1_io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
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MPC85xx_PORDEVSR_IO_SEL_SHIFT;
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/* parse the SRDS2_IO_SEL of PORDEVSR */
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srds2_io_sel = (pordevsr & GUTS_PORDEVSR_SERDES2_IO_SEL)
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>> GUTS_PORDEVSR_SERDES2_IO_SEL_SHIFT;
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debug("PORDEVSR[SRDS1_IO_SEL] = %x\n", srds1_io_sel);
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debug("PORDEVSR[SRDS2_IO_SEL] = %x\n", srds2_io_sel);
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switch (srds2_io_sel) {
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case 1: /* Lane A - SATA1, Lane E - SATA2 */
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/* CR 0 */
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tmp = in_be32(sd + FSL_SRDSCR0_OFFS);
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tmp &= ~FSL_SRDSCR0_TXEQA_MASK;
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tmp |= FSL_SRDSCR0_TXEQA_SATA;
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tmp &= ~FSL_SRDSCR0_TXEQE_MASK;
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tmp |= FSL_SRDSCR0_TXEQE_SATA;
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out_be32(sd + FSL_SRDSCR0_OFFS, tmp);
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/* CR 1 */
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tmp = in_be32(sd + FSL_SRDSCR1_OFFS);
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tmp &= ~FSL_SRDSCR1_LANEA_MASK;
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tmp &= ~FSL_SRDSCR1_LANEE_MASK;
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out_be32(sd + FSL_SRDSCR1_OFFS, tmp);
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/* CR 2 */
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tmp = in_be32(sd + FSL_SRDSCR2_OFFS);
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tmp &= ~FSL_SRDSCR2_EICA_MASK;
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tmp |= FSL_SRDSCR2_EICA_SATA;
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tmp &= ~FSL_SRDSCR2_EICE_MASK;
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tmp |= FSL_SRDSCR2_EICE_SATA;
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out_be32(sd + FSL_SRDSCR2_OFFS, tmp);
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/* CR 3 */
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tmp = in_be32(sd + FSL_SRDSCR3_OFFS);
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tmp &= ~FSL_SRDSCR3_LANEA_MASK;
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tmp |= FSL_SRDSCR3_LANEA_SATA;
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tmp &= ~FSL_SRDSCR3_LANEE_MASK;
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tmp |= FSL_SRDSCR3_LANEE_SATA;
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out_be32(sd + FSL_SRDSCR3_OFFS, tmp);
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break;
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case 3: /* Lane A - SATA1, Lane E - disabled */
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/* CR 0 */
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tmp = in_be32(sd + FSL_SRDSCR0_OFFS);
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tmp &= ~FSL_SRDSCR0_TXEQA_MASK;
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tmp |= FSL_SRDSCR0_TXEQA_SATA;
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out_be32(sd + FSL_SRDSCR0_OFFS, tmp);
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/* CR 1 */
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tmp = in_be32(sd + FSL_SRDSCR1_OFFS);
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tmp &= ~FSL_SRDSCR1_LANEE_MASK;
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tmp |= FSL_SRDSCR1_LANEE_OFF;
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out_be32(sd + FSL_SRDSCR1_OFFS, tmp);
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/* CR 2 */
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tmp = in_be32(sd + FSL_SRDSCR2_OFFS);
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tmp &= ~FSL_SRDSCR2_EICA_MASK;
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tmp |= FSL_SRDSCR2_EICA_SATA;
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out_be32(sd + FSL_SRDSCR2_OFFS, tmp);
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/* CR 3 */
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tmp = in_be32(sd + FSL_SRDSCR3_OFFS);
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tmp &= ~FSL_SRDSCR3_LANEA_MASK;
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tmp |= FSL_SRDSCR3_LANEA_SATA;
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out_be32(sd + FSL_SRDSCR3_OFFS, tmp);
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break;
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case 4: /* Lane A - eTSEC1 SGMII, Lane E - eTSEC3 SGMII */
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/* CR 0 */
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tmp = in_be32(sd + FSL_SRDSCR0_OFFS);
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tmp &= ~FSL_SRDSCR0_TXEQA_MASK;
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tmp |= FSL_SRDSCR0_TXEQA_SGMII;
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tmp &= ~FSL_SRDSCR0_TXEQE_MASK;
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tmp |= FSL_SRDSCR0_TXEQE_SGMII;
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out_be32(sd + FSL_SRDSCR0_OFFS, tmp);
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/* CR 1 */
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tmp = in_be32(sd + FSL_SRDSCR1_OFFS);
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tmp &= ~FSL_SRDSCR1_LANEA_MASK;
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tmp &= ~FSL_SRDSCR1_LANEE_MASK;
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out_be32(sd + FSL_SRDSCR1_OFFS, tmp);
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/* CR 2 */
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tmp = in_be32(sd + FSL_SRDSCR2_OFFS);
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tmp &= ~FSL_SRDSCR2_EICA_MASK;
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tmp |= FSL_SRDSCR2_EICA_SGMII;
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tmp &= ~FSL_SRDSCR2_EICE_MASK;
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tmp |= FSL_SRDSCR2_EICE_SGMII;
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out_be32(sd + FSL_SRDSCR2_OFFS, tmp);
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/* CR 3 */
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tmp = in_be32(sd + FSL_SRDSCR3_OFFS);
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tmp &= ~FSL_SRDSCR3_LANEA_MASK;
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tmp |= FSL_SRDSCR3_LANEA_SGMII;
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tmp &= ~FSL_SRDSCR3_LANEE_MASK;
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tmp |= FSL_SRDSCR3_LANEE_SGMII;
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out_be32(sd + FSL_SRDSCR3_OFFS, tmp);
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break;
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case 6: /* Lane A - eTSEC1 SGMII, Lane E - disabled */
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/* CR 0 */
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tmp = in_be32(sd + FSL_SRDSCR0_OFFS);
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tmp &= ~FSL_SRDSCR0_TXEQA_MASK;
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tmp |= FSL_SRDSCR0_TXEQA_SGMII;
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out_be32(sd + FSL_SRDSCR0_OFFS, tmp);
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/* CR 1 */
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tmp = in_be32(sd + FSL_SRDSCR1_OFFS);
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tmp &= ~FSL_SRDSCR1_LANEE_MASK;
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tmp |= FSL_SRDSCR1_LANEE_OFF;
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out_be32(sd + FSL_SRDSCR1_OFFS, tmp);
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/* CR 2 */
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tmp = in_be32(sd + FSL_SRDSCR2_OFFS);
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tmp &= ~FSL_SRDSCR2_EICA_MASK;
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tmp |= FSL_SRDSCR2_EICA_SGMII;
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out_be32(sd + FSL_SRDSCR2_OFFS, tmp);
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/* CR 3 */
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tmp = in_be32(sd + FSL_SRDSCR3_OFFS);
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tmp &= ~FSL_SRDSCR3_LANEA_MASK;
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tmp |= FSL_SRDSCR3_LANEA_SGMII;
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out_be32(sd + FSL_SRDSCR3_OFFS, tmp);
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break;
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case 7: /* Lane A - disabled, Lane E - disabled */
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/* CR 1 */
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tmp = in_be32(sd + FSL_SRDSCR1_OFFS);
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tmp &= ~FSL_SRDSCR1_LANEA_MASK;
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tmp |= FSL_SRDSCR1_LANEA_OFF;
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tmp &= ~FSL_SRDSCR1_LANEE_MASK;
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tmp |= FSL_SRDSCR1_LANEE_OFF;
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out_be32(sd + FSL_SRDSCR1_OFFS, tmp);
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break;
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default:
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break;
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}
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if (srds1_io_sel >= ARRAY_SIZE(serdes1_cfg_tbl)) {
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printf("Invalid PORDEVSR[SRDS1_IO_SEL] = %d\n", srds1_io_sel);
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return;
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}
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for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
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enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds1_io_sel][lane];
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serdes1_prtcl_map |= (1 << lane_prtcl);
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}
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/* Set the first bit to indicate serdes has been initialized */
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serdes1_prtcl_map |= (1 << NONE);
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if (srds2_io_sel >= ARRAY_SIZE(serdes2_cfg_tbl)) {
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printf("Invalid PORDEVSR[SRDS2_IO_SEL] = %d\n", srds2_io_sel);
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return;
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}
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for (lane = 0; lane < SRDS2_MAX_LANES; lane++) {
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enum srds_prtcl lane_prtcl = serdes2_cfg_tbl[srds2_io_sel][lane];
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serdes2_prtcl_map |= (1 << lane_prtcl);
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}
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/* Set the first bit to indicate serdes has been initialized */
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serdes2_prtcl_map |= (1 << NONE);
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}
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