Add the ability to determine if a given IP block connected on SERDES is configured. This is useful for things like PCIe and SRIO since they are only ever connected on SERDES. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>master
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/*
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* Copyright 2010 Freescale Semiconductor, Inc. |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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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_85xx.h> |
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#include <asm/fsl_serdes.h> |
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#define SRDS1_MAX_LANES 8 |
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static u32 serdes1_prtcl_map; |
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static u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = { |
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[0x3] = {PCIE1, PCIE1, PCIE1, PCIE1, SRIO1, SRIO1, SRIO1, SRIO1}, |
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[0x4] = {PCIE1, PCIE1, PCIE1, PCIE1, SRIO1, SRIO1, SRIO1, SRIO1}, |
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[0x5] = {NONE, NONE, NONE, NONE, SRIO1, SRIO1, SRIO1, SRIO1}, |
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[0x6] = {NONE, NONE, NONE, NONE, SRIO1, SRIO1, SRIO1, SRIO1}, |
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[0x7] = {PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1}, |
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}; |
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int is_serdes_configured(enum srds_prtcl prtcl) |
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{ |
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return (1 << prtcl) & 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 *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); |
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u32 pordevsr = in_be32(&gur->pordevsr); |
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u32 srds1_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> |
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MPC85xx_PORDEVSR_IO_SEL_SHIFT; |
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int lane; |
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debug("PORDEVSR[IO_SEL] = %x\n", srds1_cfg); |
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if (srds1_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) { |
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printf("Invalid PORDEVSR[IO_SEL] = %d\n", srds1_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[srds1_cfg][lane]; |
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serdes1_prtcl_map |= (1 << lane_prtcl); |
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} |
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} |
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