mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-22 19:23:07 +00:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2010 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 <asm/io.h>
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#include <asm/immap_86xx.h>
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#include <asm/fsl_serdes.h>
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#define SRDS1_MAX_LANES 4
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#define SRDS2_MAX_LANES 4
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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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[0x1] = {PCIE1, PCIE1, PCIE1, PCIE1},
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[0x4] = {PCIE1, PCIE1, PCIE1, PCIE1},
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[0x7] = {NONE, NONE, NONE, NONE},
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};
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static u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = {
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[0x0] = {PCIE2, PCIE2, PCIE2, PCIE2},
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[0x4] = {PCIE2, PCIE2, PCIE2, PCIE2},
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[0x7] = {NONE, NONE, NONE, 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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immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR;
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ccsr_gur_t *gur = &immap->im_gur;
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u32 pordevsr = in_be32(&gur->pordevsr);
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u32 srds_cfg = (pordevsr & MPC8610_PORDEVSR_IO_SEL) >>
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MPC8610_PORDEVSR_IO_SEL_SHIFT;
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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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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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for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
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enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][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 (srds_cfg >= ARRAY_SIZE(serdes2_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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for (lane = 0; lane < SRDS2_MAX_LANES; lane++) {
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enum srds_prtcl lane_prtcl = serdes2_cfg_tbl[srds_cfg][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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