diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc85xx/p1022_serdes.c')
-rw-r--r-- | arch/powerpc/cpu/mpc85xx/p1022_serdes.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/p1022_serdes.c b/arch/powerpc/cpu/mpc85xx/p1022_serdes.c new file mode 100644 index 00000000000..6b0fbf200cd --- /dev/null +++ b/arch/powerpc/cpu/mpc85xx/p1022_serdes.c @@ -0,0 +1,98 @@ +/* + * Copyright 2010 Freescale Semiconductor, Inc. + * Author: Timur Tabi <timur@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 +#define SRDS2_MAX_LANES 2 + +static const u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = { + [0x00] = {NONE, NONE, NONE, NONE}, + [0x01] = {NONE, NONE, NONE, NONE}, + [0x02] = {NONE, NONE, NONE, NONE}, + [0x03] = {NONE, NONE, NONE, NONE}, + [0x04] = {NONE, NONE, NONE, NONE}, + [0x06] = {PCIE1, PCIE3, SGMII_TSEC1, PCIE2}, + [0x07] = {PCIE1, PCIE3, SGMII_TSEC1, PCIE2}, + [0x09] = {PCIE1, NONE, NONE, NONE}, + [0x0a] = {PCIE1, PCIE3, SGMII_TSEC1, SGMII_TSEC2}, + [0x0b] = {PCIE1, PCIE3, SGMII_TSEC1, SGMII_TSEC2}, + [0x0d] = {PCIE1, PCIE1, SGMII_TSEC1, SGMII_TSEC2}, + [0x0e] = {PCIE1, PCIE1, SGMII_TSEC1, SGMII_TSEC2}, + [0x0f] = {PCIE1, PCIE1, SGMII_TSEC1, SGMII_TSEC2}, + [0x15] = {PCIE1, PCIE3, PCIE2, PCIE2}, + [0x16] = {PCIE1, PCIE3, PCIE2, PCIE2}, + [0x17] = {PCIE1, PCIE3, PCIE2, PCIE2}, + [0x18] = {PCIE1, PCIE1, PCIE2, PCIE2}, + [0x19] = {PCIE1, PCIE1, PCIE2, PCIE2}, + [0x1a] = {PCIE1, PCIE1, PCIE2, PCIE2}, + [0x1b] = {PCIE1, PCIE1, PCIE2, PCIE2}, + [0x1c] = {PCIE1, PCIE1, PCIE1, PCIE1}, + [0x1d] = {PCIE1, PCIE1, PCIE2, PCIE2}, + [0x1e] = {PCIE1, PCIE1, PCIE2, PCIE2}, + [0x1f] = {PCIE1, PCIE1, PCIE2, PCIE2}, +}; + +static const u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = { + [0x00] = {PCIE3, PCIE3}, + [0x01] = {PCIE2, PCIE3}, + [0x02] = {SATA1, SATA2}, + [0x03] = {SGMII_TSEC1, SGMII_TSEC2}, + [0x04] = {NONE, NONE}, + [0x06] = {SATA1, SATA2}, + [0x07] = {NONE, NONE}, + [0x09] = {PCIE3, PCIE2}, + [0x0a] = {SATA1, SATA2}, + [0x0b] = {NONE, NONE}, + [0x0d] = {PCIE3, PCIE2}, + [0x0e] = {SATA1, SATA2}, + [0x0f] = {NONE, NONE}, + [0x15] = {SGMII_TSEC1, SGMII_TSEC2}, + [0x16] = {SATA1, SATA2}, + [0x17] = {NONE, NONE}, + [0x18] = {PCIE3, PCIE3}, + [0x19] = {SGMII_TSEC1, SGMII_TSEC2}, + [0x1a] = {SATA1, SATA2}, + [0x1b] = {NONE, NONE}, + [0x1c] = {PCIE3, PCIE3}, + [0x1d] = {SGMII_TSEC1, SGMII_TSEC2}, + [0x1e] = {SATA1, SATA2}, + [0x1f] = {NONE, NONE}, +}; + +int is_serdes_configured(enum srds_prtcl device) +{ + 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; + unsigned int i; + + debug("%s: dev = %d\n", __FUNCTION__, device); + debug("PORDEVSR[IO_SEL] = 0x%x\n", srds_cfg); + + if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) { + printf("Invalid PORDEVSR[IO_SEL] = %d\n", srds_cfg); + return 0; + } + + for (i = 0; i < SRDS1_MAX_LANES; i++) { + if (serdes1_cfg_tbl[srds_cfg][i] == device) + return 1; + if (serdes2_cfg_tbl[srds_cfg][i] == device) + return 1; + } + + return 0; +} |