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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright 2011 Freescale Semiconductor, Inc.
- * Author: Prabhakar Kushwaha <prabhakar@freescale.com>
- */
- #include <config.h>
- #include <common.h>
- #include <asm/io.h>
- #include <asm/immap_85xx.h>
- #include <asm/fsl_serdes.h>
- #define SRDS1_MAX_LANES 4
- #define SRDS2_MAX_LANES 2
- static u32 serdes1_prtcl_map, serdes2_prtcl_map;
- static const u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
- [0x00] = {NONE, NONE, NONE, NONE},
- [0x01] = {PCIE1, PCIE2, SGMII_TSEC2, SGMII_TSEC3},
- [0x02] = {PCIE1, SGMII_TSEC1, SGMII_TSEC2, SGMII_TSEC3},
- [0x03] = {NONE, SGMII_TSEC1, SGMII_TSEC2, SGMII_TSEC3},
- };
- static const u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = {
- [0x00] = {NONE, NONE},
- [0x01] = {SATA1, SATA2},
- [0x02] = {SATA1, SATA2},
- [0x03] = {PCIE1, PCIE2},
- };
- int is_serdes_configured(enum srds_prtcl device)
- {
- int ret;
- if (!(serdes1_prtcl_map & (1 << NONE)))
- fsl_serdes_init();
- ret = (1 << device) & serdes1_prtcl_map;
- if (ret)
- return ret;
- if (!(serdes2_prtcl_map & (1 << NONE)))
- fsl_serdes_init();
- return (1 << device) & serdes2_prtcl_map;
- }
- void fsl_serdes_init(void)
- {
- ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
- u32 pordevsr = in_be32(&gur->pordevsr);
- u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
- MPC85xx_PORDEVSR_IO_SEL_SHIFT;
- int lane;
- if (serdes1_prtcl_map & (1 << NONE) &&
- serdes2_prtcl_map & (1 << NONE))
- return;
- debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
- if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
- printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
- return;
- }
- for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
- enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][lane];
- serdes1_prtcl_map |= (1 << lane_prtcl);
- }
- /* Set the first bit to indicate serdes has been initialized */
- serdes1_prtcl_map |= (1 << NONE);
- if (srds_cfg >= ARRAY_SIZE(serdes2_cfg_tbl)) {
- printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
- return;
- }
- for (lane = 0; lane < SRDS2_MAX_LANES; lane++) {
- enum srds_prtcl lane_prtcl = serdes2_cfg_tbl[srds_cfg][lane];
- serdes2_prtcl_map |= (1 << lane_prtcl);
- }
- /* Set the first bit to indicate serdes has been initialized */
- serdes2_prtcl_map |= (1 << NONE);
- }
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