diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc85xx/p1023_serdes.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/p1023_serdes.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/p1023_serdes.c b/arch/powerpc/cpu/mpc85xx/p1023_serdes.c new file mode 100644 index 0000000..c8ab5d6 --- /dev/null +++ b/arch/powerpc/cpu/mpc85xx/p1023_serdes.c @@ -0,0 +1,53 @@ +/* + * Copyright 2010-2011 Freescale Semiconductor, Inc. + * Author: Roy Zang <tie-fei.zang@freescale.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#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 + +static u32 serdes1_prtcl_map; + +static const u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = { + [0x00] = {PCIE1, PCIE2, NONE, NONE}, + [0x01] = {PCIE1, PCIE2, PCIE3, NONE}, + [0x02] = {PCIE1, PCIE2, PCIE3, SGMII_FM1_DTSEC2}, + [0x03] = {PCIE1, PCIE2, SGMII_FM1_DTSEC1, SGMII_FM1_DTSEC2}, +}; + +int is_serdes_configured(enum srds_prtcl device) +{ + int ret = (1 << device) & serdes1_prtcl_map; + return ret; +} + +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; + + 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); + } + +} |