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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
71 lines
1.6 KiB
C
71 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2013 Freescale Semiconductor, Inc.
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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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#define SRDS1_MAX_LANES 4
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static u32 serdes1_prtcl_map;
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struct serdes_config {
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u32 protocol;
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u8 lanes[SRDS1_MAX_LANES];
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};
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static const struct serdes_config serdes1_cfg_tbl[] = {
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/* SerDes 1 */
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{1, {PCIE1, PCIE1, PCIE1, PCIE1} },
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{2, {PCIE1, PCIE1, PCIE1, PCIE1} },
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{3, {PCIE1, PCIE1, NONE, NONE} },
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{4, {PCIE1, PCIE1, NONE, NONE} },
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{5, {PCIE1, NONE, NONE, NONE} },
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{6, {PCIE1, NONE, NONE, NONE} },
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{}
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};
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int is_serdes_configured(enum srds_prtcl device)
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{
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if (!(serdes1_prtcl_map & (1 << NONE)))
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fsl_serdes_init();
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return (1 << device) & serdes1_prtcl_map;
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}
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void fsl_serdes_init(void)
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{
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ccsr_gur_t *gur = (void *)CFG_SYS_MPC85xx_GUTS_ADDR;
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u32 pordevsr = in_be32(&gur->pordevsr);
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u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
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MPC85xx_PORDEVSR_IO_SEL_SHIFT;
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const struct serdes_config *ptr;
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int lane;
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if (serdes1_prtcl_map & (1 << NONE))
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return;
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debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
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if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
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printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
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return;
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}
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ptr = &serdes1_cfg_tbl[srds_cfg];
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if (!ptr->protocol)
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return;
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for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
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enum srds_prtcl lane_prtcl = ptr->lanes[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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}
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