X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=arch%2Farm%2Fcpu%2Farmv8%2Ffsl-layerscape%2Ffsl_lsch2_serdes.c;h=c0b4d0a9d56452d174a289a42b9f0402f5ab89ed;hb=a9a5cef391ed5b2e47ed02a8cecf0ab1a19fc76a;hp=f7178d14705e03f074aa0433e296910848b0266a;hpb=588eec2a8603ee8a8e2e913895767c4c02d523af;p=u-boot diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_serdes.c b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_serdes.c index f7178d1470..c0b4d0a9d5 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_serdes.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_serdes.c @@ -6,21 +6,33 @@ #include #include -#include +#include #include #include #ifdef CONFIG_SYS_FSL_SRDS_1 static u8 serdes1_prtcl_map[SERDES_PRCTL_COUNT]; #endif +#ifdef CONFIG_SYS_FSL_SRDS_2 +static u8 serdes2_prtcl_map[SERDES_PRCTL_COUNT]; +#endif int is_serdes_configured(enum srds_prtcl device) { int ret = 0; #ifdef CONFIG_SYS_FSL_SRDS_1 + if (!serdes1_prtcl_map[NONE]) + fsl_serdes_init(); + ret |= serdes1_prtcl_map[device]; #endif +#ifdef CONFIG_SYS_FSL_SRDS_2 + if (!serdes2_prtcl_map[NONE]) + fsl_serdes_init(); + + ret |= serdes2_prtcl_map[device]; +#endif return !!ret; } @@ -37,6 +49,12 @@ int serdes_get_first_lane(u32 sd, enum srds_prtcl device) cfg &= FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_MASK; cfg >>= FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_SHIFT; break; +#endif +#ifdef CONFIG_SYS_FSL_SRDS_2 + case FSL_SRDS_2: + cfg &= FSL_CHASSIS2_RCWSR4_SRDS2_PRTCL_MASK; + cfg >>= FSL_CHASSIS2_RCWSR4_SRDS2_PRTCL_SHIFT; + break; #endif default: printf("invalid SerDes%d\n", sd); @@ -86,7 +104,10 @@ void serdes_init(u32 sd, u32 sd_addr, u32 sd_prctl_mask, u32 sd_prctl_shift, u32 cfg; int lane; - memset(serdes_prtcl_map, 0, sizeof(serdes_prtcl_map)); + if (serdes_prtcl_map[NONE]) + return; + + memset(serdes_prtcl_map, 0, sizeof(u8) * SERDES_PRCTL_COUNT); cfg = gur_in32(&gur->rcwsr[4]) & sd_prctl_mask; cfg >>= sd_prctl_shift; @@ -103,6 +124,281 @@ void serdes_init(u32 sd, u32 sd_addr, u32 sd_prctl_mask, u32 sd_prctl_shift, else serdes_prtcl_map[lane_prtcl] = 1; } + + /* Set the first element to indicate serdes has been initialized */ + serdes_prtcl_map[NONE] = 1; +} + +__weak int get_serdes_volt(void) +{ + return -1; +} + +__weak int set_serdes_volt(int svdd) +{ + return -1; +} + +int setup_serdes_volt(u32 svdd) +{ + struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); + struct ccsr_serdes *serdes1_base; +#ifdef CONFIG_SYS_FSL_SRDS_2 + struct ccsr_serdes *serdes2_base; +#endif + u32 cfg_rcw4 = gur_in32(&gur->rcwsr[4]); + u32 cfg_rcw5 = gur_in32(&gur->rcwsr[5]); + u32 cfg_tmp, reg = 0; + int svdd_cur, svdd_tar; + int ret; + int i; + + /* Only support switch SVDD to 900mV/1000mV */ + if (svdd != 900 && svdd != 1000) + return -EINVAL; + + svdd_tar = svdd; + svdd_cur = get_serdes_volt(); + if (svdd_cur < 0) + return -EINVAL; + + debug("%s: current SVDD: %dmV; target SVDD: %dmV\n", + __func__, svdd_cur, svdd_tar); + if (svdd_cur == svdd_tar) + return 0; + + serdes1_base = (void *)CONFIG_SYS_FSL_SERDES_ADDR; +#ifdef CONFIG_SYS_FSL_SRDS_2 + serdes2_base = (void *)serdes1_base + 0x10000; +#endif + + /* Put the all enabled lanes in reset */ +#ifdef CONFIG_SYS_FSL_SRDS_1 + cfg_tmp = cfg_rcw4 & FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_MASK; + cfg_tmp >>= FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_SHIFT; + + for (i = 0; i < 4 && cfg_tmp & (0xf << (3 - i)); i++) { + reg = in_be32(&serdes1_base->lane[i].gcr0); + reg &= 0xFF9FFFFF; + out_be32(&serdes1_base->lane[i].gcr0, reg); + } +#endif +#ifdef CONFIG_SYS_FSL_SRDS_2 + cfg_tmp = cfg_rcw4 & FSL_CHASSIS2_RCWSR4_SRDS2_PRTCL_MASK; + cfg_tmp >>= FSL_CHASSIS2_RCWSR4_SRDS2_PRTCL_SHIFT; + + for (i = 0; i < 4 && cfg_tmp & (0xf << (3 - i)); i++) { + reg = in_be32(&serdes2_base->lane[i].gcr0); + reg &= 0xFF9FFFFF; + out_be32(&serdes2_base->lane[i].gcr0, reg); + } +#endif + + /* Put the all enabled PLL in reset */ +#ifdef CONFIG_SYS_FSL_SRDS_1 + cfg_tmp = (cfg_rcw5 >> 22) & 0x3; + for (i = 0; i < 2 && !(cfg_tmp & (0x1 << (1 - i))); i++) { + reg = in_be32(&serdes1_base->bank[i].rstctl); + reg &= 0xFFFFFFBF; + reg |= 0x10000000; + out_be32(&serdes1_base->bank[i].rstctl, reg); + udelay(1); + + reg = in_be32(&serdes1_base->bank[i].rstctl); + reg &= 0xFFFFFF1F; + out_be32(&serdes1_base->bank[i].rstctl, reg); + } + udelay(1); +#endif + +#ifdef CONFIG_SYS_FSL_SRDS_2 + cfg_tmp = (cfg_rcw5 >> 20) & 0x3; + for (i = 0; i < 2 && !(cfg_tmp & (0x1 << (1 - i))); i++) { + reg = in_be32(&serdes2_base->bank[i].rstctl); + reg &= 0xFFFFFFBF; + reg |= 0x10000000; + out_be32(&serdes2_base->bank[i].rstctl, reg); + udelay(1); + + reg = in_be32(&serdes2_base->bank[i].rstctl); + reg &= 0xFFFFFF1F; + out_be32(&serdes2_base->bank[i].rstctl, reg); + } + udelay(1); +#endif + + /* Put the Rx/Tx calibration into reset */ +#ifdef CONFIG_SYS_FSL_SRDS_1 + reg = in_be32(&serdes1_base->srdstcalcr); + reg &= 0xF7FFFFFF; + out_be32(&serdes1_base->srdstcalcr, reg); + reg = in_be32(&serdes1_base->srdsrcalcr); + reg &= 0xF7FFFFFF; + out_be32(&serdes1_base->srdsrcalcr, reg); + +#endif +#ifdef CONFIG_SYS_FSL_SRDS_2 + reg = in_be32(&serdes2_base->srdstcalcr); + reg &= 0xF7FFFFFF; + out_be32(&serdes2_base->srdstcalcr, reg); + reg = in_be32(&serdes2_base->srdsrcalcr); + reg &= 0xF7FFFFFF; + out_be32(&serdes2_base->srdsrcalcr, reg); +#endif + + /* + * If SVDD set failed, will not return directly, so that the + * serdes lanes can complete reseting. + */ + ret = set_serdes_volt(svdd_tar); + if (ret) + printf("%s: Failed to set SVDD\n", __func__); + + /* Wait for SVDD to stabilize */ + udelay(100); + + /* For each PLL that’s not disabled via RCW */ +#ifdef CONFIG_SYS_FSL_SRDS_1 + cfg_tmp = (cfg_rcw5 >> 22) & 0x3; + for (i = 0; i < 2 && !(cfg_tmp & (0x1 << (1 - i))); i++) { + reg = in_be32(&serdes1_base->bank[i].rstctl); + reg |= 0x00000020; + out_be32(&serdes1_base->bank[i].rstctl, reg); + udelay(1); + + reg = in_be32(&serdes1_base->bank[i].rstctl); + reg |= 0x00000080; + out_be32(&serdes1_base->bank[i].rstctl, reg); + + /* Take the Rx/Tx calibration out of reset */ + if (!(cfg_tmp == 0x3 && i == 1)) { + udelay(1); + reg = in_be32(&serdes1_base->srdstcalcr); + reg |= 0x08000000; + out_be32(&serdes1_base->srdstcalcr, reg); + reg = in_be32(&serdes1_base->srdsrcalcr); + reg |= 0x08000000; + out_be32(&serdes1_base->srdsrcalcr, reg); + } + } + udelay(1); +#endif + +#ifdef CONFIG_SYS_FSL_SRDS_2 + cfg_tmp = (cfg_rcw5 >> 20) & 0x3; + for (i = 0; i < 2 && !(cfg_tmp & (0x1 << (1 - i))); i++) { + reg = in_be32(&serdes2_base->bank[i].rstctl); + reg |= 0x00000020; + out_be32(&serdes2_base->bank[i].rstctl, reg); + udelay(1); + + reg = in_be32(&serdes2_base->bank[i].rstctl); + reg |= 0x00000080; + out_be32(&serdes2_base->bank[i].rstctl, reg); + + /* Take the Rx/Tx calibration out of reset */ + if (!(cfg_tmp == 0x3 && i == 1)) { + udelay(1); + reg = in_be32(&serdes2_base->srdstcalcr); + reg |= 0x08000000; + out_be32(&serdes2_base->srdstcalcr, reg); + reg = in_be32(&serdes2_base->srdsrcalcr); + reg |= 0x08000000; + out_be32(&serdes2_base->srdsrcalcr, reg); + } + } + udelay(1); + +#endif + + /* Wait for at lesat 625us to ensure the PLLs being reset are locked */ + udelay(800); + +#ifdef CONFIG_SYS_FSL_SRDS_1 + cfg_tmp = (cfg_rcw5 >> 22) & 0x3; + for (i = 0; i < 2 && !(cfg_tmp & (0x1 << (1 - i))); i++) { + /* if the PLL is not locked, set RST_ERR */ + reg = in_be32(&serdes1_base->bank[i].pllcr0); + if (!((reg >> 23) & 0x1)) { + reg = in_be32(&serdes1_base->bank[i].rstctl); + reg |= 0x20000000; + out_be32(&serdes1_base->bank[i].rstctl, reg); + } else { + udelay(1); + reg = in_be32(&serdes1_base->bank[i].rstctl); + reg &= 0xFFFFFFEF; + reg |= 0x00000040; + out_be32(&serdes1_base->bank[i].rstctl, reg); + udelay(1); + } + } +#endif + +#ifdef CONFIG_SYS_FSL_SRDS_2 + cfg_tmp = (cfg_rcw5 >> 20) & 0x3; + for (i = 0; i < 2 && !(cfg_tmp & (0x1 << (1 - i))); i++) { + reg = in_be32(&serdes2_base->bank[i].pllcr0); + if (!((reg >> 23) & 0x1)) { + reg = in_be32(&serdes2_base->bank[i].rstctl); + reg |= 0x20000000; + out_be32(&serdes2_base->bank[i].rstctl, reg); + } else { + udelay(1); + reg = in_be32(&serdes2_base->bank[i].rstctl); + reg &= 0xFFFFFFEF; + reg |= 0x00000040; + out_be32(&serdes2_base->bank[i].rstctl, reg); + udelay(1); + } + } +#endif + + /* Take the all enabled lanes out of reset */ +#ifdef CONFIG_SYS_FSL_SRDS_1 + cfg_tmp = cfg_rcw4 & FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_MASK; + cfg_tmp >>= FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_SHIFT; + + for (i = 0; i < 4 && cfg_tmp & (0xf << (3 - i)); i++) { + reg = in_be32(&serdes1_base->lane[i].gcr0); + reg |= 0x00600000; + out_be32(&serdes1_base->lane[i].gcr0, reg); + } +#endif +#ifdef CONFIG_SYS_FSL_SRDS_2 + cfg_tmp = cfg_rcw4 & FSL_CHASSIS2_RCWSR4_SRDS2_PRTCL_MASK; + cfg_tmp >>= FSL_CHASSIS2_RCWSR4_SRDS2_PRTCL_SHIFT; + + for (i = 0; i < 4 && cfg_tmp & (0xf << (3 - i)); i++) { + reg = in_be32(&serdes2_base->lane[i].gcr0); + reg |= 0x00600000; + out_be32(&serdes2_base->lane[i].gcr0, reg); + } +#endif + /* For each PLL being reset, and achieved PLL lock set RST_DONE */ +#ifdef CONFIG_SYS_FSL_SRDS_1 + cfg_tmp = (cfg_rcw5 >> 22) & 0x3; + for (i = 0; i < 2; i++) { + reg = in_be32(&serdes1_base->bank[i].pllcr0); + if (!(cfg_tmp & (0x1 << (1 - i))) && ((reg >> 23) & 0x1)) { + reg = in_be32(&serdes1_base->bank[i].rstctl); + reg |= 0x40000000; + out_be32(&serdes1_base->bank[i].rstctl, reg); + } + } +#endif +#ifdef CONFIG_SYS_FSL_SRDS_2 + cfg_tmp = (cfg_rcw5 >> 20) & 0x3; + for (i = 0; i < 2; i++) { + reg = in_be32(&serdes2_base->bank[i].pllcr0); + if (!(cfg_tmp & (0x1 << (1 - i))) && ((reg >> 23) & 0x1)) { + reg = in_be32(&serdes2_base->bank[i].rstctl); + reg |= 0x40000000; + out_be32(&serdes2_base->bank[i].rstctl, reg); + } + } +#endif + + return ret; } void fsl_serdes_init(void) @@ -114,4 +410,11 @@ void fsl_serdes_init(void) FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_SHIFT, serdes1_prtcl_map); #endif +#ifdef CONFIG_SYS_FSL_SRDS_2 + serdes_init(FSL_SRDS_2, + CONFIG_SYS_FSL_SERDES_ADDR, + FSL_CHASSIS2_RCWSR4_SRDS2_PRTCL_MASK, + FSL_CHASSIS2_RCWSR4_SRDS2_PRTCL_SHIFT, + serdes2_prtcl_map); +#endif }