diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.c | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.c b/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.c new file mode 100644 index 000000000..01dcdf6bc --- /dev/null +++ b/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.c @@ -0,0 +1,203 @@ +/* + * Copyright 2012 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/fsl_serdes.h> +#include <asm/immap_85xx.h> +#include <asm/io.h> +#include <asm/processor.h> +#include <asm/fsl_law.h> +#include <asm/errno.h> +#include "fsl_corenet2_serdes.h" + +static u64 serdes1_prtcl_map; +static u64 serdes2_prtcl_map; +#ifdef CONFIG_SYS_FSL_SRDS_3 +static u64 serdes3_prtcl_map; +#endif +#ifdef CONFIG_SYS_FSL_SRDS_4 +static u64 serdes4_prtcl_map; +#endif + +#ifdef DEBUG +static const char *serdes_prtcl_str[] = { + [NONE] = "NA", + [PCIE1] = "PCIE1", + [PCIE2] = "PCIE2", + [PCIE3] = "PCIE3", + [PCIE4] = "PCIE4", + [SATA1] = "SATA1", + [SATA2] = "SATA2", + [SRIO1] = "SRIO1", + [SRIO2] = "SRIO2", + [SGMII_FM1_DTSEC1] = "SGMII_FM1_DTSEC1", + [SGMII_FM1_DTSEC2] = "SGMII_FM1_DTSEC2", + [SGMII_FM1_DTSEC3] = "SGMII_FM1_DTSEC3", + [SGMII_FM1_DTSEC4] = "SGMII_FM1_DTSEC4", + [SGMII_FM1_DTSEC5] = "SGMII_FM1_DTSEC5", + [SGMII_FM1_DTSEC6] = "SGMII_FM1_DTSEC6", + [SGMII_FM2_DTSEC1] = "SGMII_FM2_DTSEC1", + [SGMII_FM2_DTSEC2] = "SGMII_FM2_DTSEC2", + [SGMII_FM2_DTSEC3] = "SGMII_FM2_DTSEC3", + [SGMII_FM2_DTSEC4] = "SGMII_FM2_DTSEC4", + [XAUI_FM1] = "XAUI_FM1", + [XAUI_FM2] = "XAUI_FM2", + [AURORA] = "DEBUG", + [CPRI1] = "CPRI1", + [CPRI2] = "CPRI2", + [CPRI3] = "CPRI3", + [CPRI4] = "CPRI4", + [CPRI5] = "CPRI5", + [CPRI6] = "CPRI6", + [CPRI7] = "CPRI7", + [CPRI8] = "CPRI8", + [XAUI_FM1_MAC9] = "XAUI_FM1_MAC9", + [XAUI_FM1_MAC10] = "XAUI_FM1_MAC10", + [XAUI_FM2_MAC9] = "XAUI_FM2_MAC9", + [XAUI_FM2_MAC10] = "XAUI_FM2_MAC10", + [HIGIG_FM1_MAC9] = "HiGig_FM1_MAC9", + [HIGIG_FM1_MAC10] = "HiGig_FM1_MAC10", + [HIGIG_FM2_MAC9] = "HiGig_FM2_MAC9", + [HIGIG_FM2_MAC10] = "HiGig_FM2_MAC10", + [QSGMII_FM1_A] = "QSGMII_FM1_A", + [QSGMII_FM1_B] = "QSGMII_FM1_B", + [QSGMII_FM2_A] = "QSGMII_FM2_A", + [QSGMII_FM2_B] = "QSGMII_FM2_B", + [XFI_FM1_MAC9] = "XFI_FM1_MAC9", + [XFI_FM1_MAC10] = "XFI_FM1_MAC10", + [XFI_FM2_MAC9] = "XFI_FM2_MAC9", + [XFI_FM2_MAC10] = "XFI_FM2_MAC10", + [INTERLAKEN] = "INTERLAKEN", +}; +#endif + +int is_serdes_configured(enum srds_prtcl device) +{ + u64 ret = 0; + + ret |= (1ULL << device) & serdes1_prtcl_map; + ret |= (1ULL << device) & serdes2_prtcl_map; +#ifdef CONFIG_SYS_FSL_SRDS_3 + ret |= (1ULL << device) & serdes3_prtcl_map; +#endif +#ifdef CONFIG_SYS_FSL_SRDS_4 + ret |= (1ULL << device) & serdes4_prtcl_map; +#endif + + return !!ret; +} + +int serdes_get_first_lane(u32 sd, enum srds_prtcl device) +{ + const ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + u32 cfg = in_be32(&gur->rcwsr[4]); + int i; + + switch (sd) { + case FSL_SRDS_1: + cfg &= FSL_CORENET2_RCWSR4_SRDS1_PRTCL; + cfg >>= FSL_CORENET2_RCWSR4_SRDS1_PRTCL_SHIFT; + break; + case FSL_SRDS_2: + cfg &= FSL_CORENET2_RCWSR4_SRDS2_PRTCL; + cfg >>= FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT; + break; +#ifdef CONFIG_SYS_FSL_SRDS_3 + case FSL_SRDS_3: + cfg &= FSL_CORENET2_RCWSR4_SRDS3_PRTCL; + cfg >>= FSL_CORENET2_RCWSR4_SRDS3_PRTCL_SHIFT; + break; +#endif +#ifdef CONFIG_SYS_FSL_SRDS_4 + case FSL_SRDS_4: + cfg &= FSL_CORENET2_RCWSR4_SRDS4_PRTCL; + cfg >>= FSL_CORENET2_RCWSR4_SRDS4_PRTCL_SHIFT; + break; +#endif + default: + printf("invalid SerDes%d\n", sd); + break; + } + /* Is serdes enabled at all? */ + if (unlikely(cfg == 0)) + return -ENODEV; + + for (i = 0; i < SRDS_MAX_LANES; i++) { + if (serdes_get_prtcl(sd, cfg, i) == device) + return i; + } + + return -ENODEV; +} + +u64 serdes_init(u32 sd, u32 sd_addr, u32 sd_prctl_mask, u32 sd_prctl_shift) +{ + ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + u64 serdes_prtcl_map = 0; + u32 cfg; + int lane; + + cfg = in_be32(&gur->rcwsr[4]) & sd_prctl_mask; + /* Is serdes enabled at all? */ + if (!cfg) { + printf("SERDES%d is not enabled\n", sd + 1); + return 0; + } + + cfg >>= sd_prctl_shift; + printf("Using SERDES%d Protocol: 0x%x\n", sd + 1, cfg); + if (!is_serdes_prtcl_valid(sd, cfg)) + printf("SERDES%d[PRTCL] = 0x%x is not valid\n", sd + 1, cfg); + + for (lane = 0; lane < SRDS_MAX_LANES; lane++) { + enum srds_prtcl lane_prtcl = serdes_get_prtcl(sd, cfg, lane); + serdes_prtcl_map |= (1ULL << lane_prtcl); + } + + return serdes_prtcl_map; +} + +void fsl_serdes_init(void) +{ + + serdes1_prtcl_map = serdes_init(FSL_SRDS_1, + CONFIG_SYS_FSL_CORENET_SERDES_ADDR, + FSL_CORENET2_RCWSR4_SRDS1_PRTCL, + FSL_CORENET2_RCWSR4_SRDS1_PRTCL_SHIFT); + serdes2_prtcl_map = serdes_init(FSL_SRDS_2, + CONFIG_SYS_FSL_CORENET_SERDES_ADDR + FSL_SRDS_2 * 0x1000, + FSL_CORENET2_RCWSR4_SRDS2_PRTCL, + FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT); +#ifdef CONFIG_SYS_FSL_SRDS_3 + serdes3_prtcl_map = serdes_init(FSL_SRDS_3, + CONFIG_SYS_FSL_CORENET_SERDES_ADDR + FSL_SRDS_3 * 0x1000, + FSL_CORENET2_RCWSR4_SRDS3_PRTCL, + FSL_CORENET2_RCWSR4_SRDS3_PRTCL_SHIFT); +#endif +#ifdef CONFIG_SYS_FSL_SRDS_4 + serdes4_prtcl_map = serdes_init(FSL_SRDS_4, + CONFIG_SYS_FSL_CORENET_SERDES_ADDR + FSL_SRDS_4 * 0x1000, + FSL_CORENET2_RCWSR4_SRDS4_PRTCL, + FSL_CORENET2_RCWSR4_SRDS4_PRTCL_SHIFT); +#endif + +} |