X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=arch%2Fpowerpc%2Fcpu%2Fmpc85xx%2Ffsl_corenet_serdes.c;h=79d6544a09805da4267016058300278e519ce503;hb=9925f1dbc38c0ef7220c6fca5968c708b8e48764;hp=f58d6d617c5aa4c9e3596ced8835e4ebdc9a3882;hpb=314b3ff1a6e189baddb01feba5887b40ee701323;p=oweals%2Fu-boot.git diff --git a/arch/powerpc/cpu/mpc85xx/fsl_corenet_serdes.c b/arch/powerpc/cpu/mpc85xx/fsl_corenet_serdes.c index f58d6d617c..79d6544a09 100644 --- a/arch/powerpc/cpu/mpc85xx/fsl_corenet_serdes.c +++ b/arch/powerpc/cpu/mpc85xx/fsl_corenet_serdes.c @@ -1,23 +1,7 @@ /* * Copyright 2009-2011 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 + * SPDX-License-Identifier: GPL-2.0+ */ #include @@ -29,11 +13,22 @@ #include #include #include +#include #include "fsl_corenet_serdes.h" -static u32 serdes_prtcl_map; +/* + * The work-arounds for erratum SERDES8 and SERDES-A001 are linked together. + * The code is already very complicated as it is, and separating the two + * completely would just make things worse. We try to keep them as separate + * as possible, but for now we require SERDES8 if SERDES_A001 is defined. + */ +#ifdef CONFIG_SYS_P4080_ERRATUM_SERDES_A001 +#ifndef CONFIG_SYS_P4080_ERRATUM_SERDES8 +#error "CONFIG_SYS_P4080_ERRATUM_SERDES_A001 requires CONFIG_SYS_P4080_ERRATUM_SERDES8" +#endif +#endif -#define HWCONFIG_BUFFER_SIZE 128 +static u32 serdes_prtcl_map; #ifdef DEBUG static const char *serdes_prtcl_str[] = { @@ -55,6 +50,7 @@ static const char *serdes_prtcl_str[] = { [SGMII_FM2_DTSEC2] = "SGMII_FM2_DTSEC2", [SGMII_FM2_DTSEC3] = "SGMII_FM2_DTSEC3", [SGMII_FM2_DTSEC4] = "SGMII_FM2_DTSEC4", + [SGMII_FM2_DTSEC5] = "SGMII_FM2_DTSEC5", [XAUI_FM1] = "XAUI_FM1", [XAUI_FM2] = "XAUI_FM2", [AURORA] = "DEBUG", @@ -80,10 +76,21 @@ static const struct { { 17, 163, FSL_SRDS_BANK_2 }, { 18, 164, FSL_SRDS_BANK_2 }, { 19, 165, FSL_SRDS_BANK_2 }, +#ifdef CONFIG_ARCH_P4080 { 20, 170, FSL_SRDS_BANK_3 }, { 21, 171, FSL_SRDS_BANK_3 }, { 22, 172, FSL_SRDS_BANK_3 }, { 23, 173, FSL_SRDS_BANK_3 }, +#else + { 20, 166, FSL_SRDS_BANK_3 }, + { 21, 167, FSL_SRDS_BANK_3 }, + { 22, 168, FSL_SRDS_BANK_3 }, + { 23, 169, FSL_SRDS_BANK_3 }, +#endif +#if SRDS_MAX_BANK > 3 + { 24, 175, FSL_SRDS_BANK_4 }, + { 25, 176, FSL_SRDS_BANK_4 }, +#endif }; int serdes_get_lane_idx(int lane) @@ -91,7 +98,7 @@ int serdes_get_lane_idx(int lane) return lanes[lane].idx; } -int serdes_get_bank(int lane) +int serdes_get_bank_by_lane(int lane) { return lanes[lane].bank; } @@ -129,9 +136,131 @@ int is_serdes_configured(enum srds_prtcl device) if (!(in_be32(&gur->rcwsr[5]) & FSL_CORENET_RCWSR5_SRDS_EN)) return 0; + if (!(serdes_prtcl_map & (1 << NONE))) + fsl_serdes_init(); + return (1 << device) & serdes_prtcl_map; } +static int __serdes_get_first_lane(uint32_t prtcl, enum srds_prtcl device) +{ + int i; + + for (i = 0; i < SRDS_MAX_LANES; i++) { + if (serdes_get_prtcl(prtcl, i) == device) + return i; + } + + return -ENODEV; +} + +/* + * Returns the SERDES lane (0..SRDS_MAX_LANES-1) that routes to the given + * device. This depends on the current SERDES protocol, as defined in the RCW. + * + * Returns a negative error code if SERDES is disabled or the given device is + * not supported in the current SERDES protocol. + */ +int serdes_get_first_lane(enum srds_prtcl device) +{ + u32 prtcl; + const ccsr_gur_t *gur; + + gur = (typeof(gur))CONFIG_SYS_MPC85xx_GUTS_ADDR; + + /* Is serdes enabled at all? */ + if (unlikely((in_be32(&gur->rcwsr[5]) & 0x2000) == 0)) + return -ENODEV; + + prtcl = (in_be32(&gur->rcwsr[4]) & FSL_CORENET_RCWSR4_SRDS_PRTCL) >> 26; + + return __serdes_get_first_lane(prtcl, device); +} + +#ifdef CONFIG_SYS_P4080_ERRATUM_SERDES9 +/* + * Returns the SERDES bank (1, 2, or 3) that a given device is on for a given + * SERDES protocol. + * + * Returns a negative error code if the given device is not supported for the + * given SERDES protocol. + */ +static int serdes_get_bank_by_device(uint32_t prtcl, enum srds_prtcl device) +{ + int lane; + + lane = __serdes_get_first_lane(prtcl, device); + if (unlikely(lane < 0)) + return lane; + + return serdes_get_bank_by_lane(lane); +} + +static uint32_t __serdes_get_lane_count(uint32_t prtcl, enum srds_prtcl device, + int first) +{ + int lane; + + for (lane = first; lane < SRDS_MAX_LANES; lane++) { + if (serdes_get_prtcl(prtcl, lane) != device) + break; + } + + return lane - first; +} + +static void __serdes_reset_rx(serdes_corenet_t *regs, + uint32_t prtcl, + enum srds_prtcl device) +{ + int lane, idx, first, last; + + lane = __serdes_get_first_lane(prtcl, device); + if (unlikely(lane < 0)) + return; + first = serdes_get_lane_idx(lane); + last = first + __serdes_get_lane_count(prtcl, device, lane); + + /* + * Set BnGCRy0[RRST] = 0 for each lane in the each bank that is + * selected as XAUI to place the lane into reset. + */ + for (idx = first; idx < last; idx++) + clrbits_be32(®s->lane[idx].gcr0, SRDS_GCR0_RRST); + + /* Wait at least 250 ns */ + udelay(1); + + /* + * Set BnGCRy0[RRST] = 1 for each lane in the each bank that is + * selected as XAUI to bring the lane out of reset. + */ + for (idx = first; idx < last; idx++) + setbits_be32(®s->lane[idx].gcr0, SRDS_GCR0_RRST); +} + +void serdes_reset_rx(enum srds_prtcl device) +{ + u32 prtcl; + const ccsr_gur_t *gur; + serdes_corenet_t *regs; + + if (unlikely(device == NONE)) + return; + + gur = (typeof(gur))CONFIG_SYS_MPC85xx_GUTS_ADDR; + + /* Is serdes enabled at all? */ + if (unlikely((in_be32(&gur->rcwsr[5]) & 0x2000) == 0)) + return; + + regs = (typeof(regs))CONFIG_SYS_FSL_CORENET_SERDES_ADDR; + prtcl = (in_be32(&gur->rcwsr[4]) & FSL_CORENET_RCWSR4_SRDS_PRTCL) >> 26; + + __serdes_reset_rx(regs, prtcl, device); +} +#endif + #ifndef CONFIG_SYS_DCSRBAR_PHYS #define CONFIG_SYS_DCSRBAR_PHYS 0x80000000 /* Must be 1GB-aligned for rev1.0 */ #define CONFIG_SYS_DCSRBAR 0x80000000 @@ -139,9 +268,28 @@ int is_serdes_configured(enum srds_prtcl device) #endif #ifdef CONFIG_SYS_P4080_ERRATUM_SERDES8 +/* + * Enable a SERDES bank that was disabled via the RCW + * + * We only call this function for SERDES8 and SERDES-A001 in cases we really + * want to enable the bank, whether we actually want to use the lanes or not, + * so make sure at least one lane is enabled. We're only enabling this one + * lane to satisfy errata requirements that the bank be enabled. + * + * We use a local variable instead of srds_lpd_b[] because we want drivers to + * think that the lanes actually are disabled. + */ static void enable_bank(ccsr_gur_t *gur, int bank) { u32 rcw5; + u32 temp_lpd_b = srds_lpd_b[bank]; + + /* + * If we're asked to disable all lanes, just pretend we're doing + * that. + */ + if (temp_lpd_b == 0xF) + temp_lpd_b = 0xE; /* * Enable the lanes SRDS_LPD_Bn. The RCW bits are read-only in @@ -150,10 +298,10 @@ static void enable_bank(ccsr_gur_t *gur, int bank) rcw5 = in_be32(gur->rcwsr + 5); if (bank == FSL_SRDS_BANK_2) { rcw5 &= ~FSL_CORENET_RCWSRn_SRDS_LPD_B2; - rcw5 |= srds_lpd_b[bank] << 26; + rcw5 |= temp_lpd_b << 26; } else if (bank == FSL_SRDS_BANK_3) { rcw5 &= ~FSL_CORENET_RCWSRn_SRDS_LPD_B3; - rcw5 |= srds_lpd_b[bank] << 18; + rcw5 |= temp_lpd_b << 18; } else { printf("SERDES: enable_bank: bad bank %d\n", bank + 1); return; @@ -223,8 +371,6 @@ static void p4080_erratum_serdes8(serdes_corenet_t *regs, ccsr_gur_t *gur, */ setbits_be32(®s->bank[FSL_SRDS_BANK_3].pllcr1, SRDS_PLLCR1_PLL_BWSEL); - - enable_bank(gur, FSL_SRDS_BANK_3); break; case 0x0f: @@ -259,21 +405,96 @@ static void p4080_erratum_serdes8(serdes_corenet_t *regs, ccsr_gur_t *gur, SRDS_PLLCR0_FRATE_SEL_MASK, SRDS_PLLCR0_FRATE_SEL_6_25); break; - default: - enable_bank(gur, FSL_SRDS_BANK_3); } + enable_bank(gur, FSL_SRDS_BANK_3); } #endif +#ifdef CONFIG_SYS_P4080_ERRATUM_SERDES_A005 +/* + * If PCIe is not selected as a protocol for any lanes driven by a given PLL, + * that PLL should have SRDSBnPLLCR1[PLLBW_SEL] = 0. + */ +static void p4080_erratum_serdes_a005(serdes_corenet_t *regs, unsigned int cfg) +{ + enum srds_prtcl device; + + switch (cfg) { + case 0x13: + case 0x16: + /* + * If SRDS_PRTCL = 0x13 or 0x16, set SRDSB1PLLCR1[PLLBW_SEL] + * to 0. + */ + clrbits_be32(®s->bank[FSL_SRDS_BANK_1].pllcr1, + SRDS_PLLCR1_PLL_BWSEL); + break; + case 0x19: + /* + * If SRDS_PRTCL = 0x19, set SRDSB1PLLCR1[PLLBW_SEL] to 0 and + * SRDSB3PLLCR1[PLLBW_SEL] to 1. + */ + clrbits_be32(®s->bank[FSL_SRDS_BANK_1].pllcr1, + SRDS_PLLCR1_PLL_BWSEL); + setbits_be32(®s->bank[FSL_SRDS_BANK_3].pllcr1, + SRDS_PLLCR1_PLL_BWSEL); + break; + } + + /* + * Set SRDSBnPLLCR1[PLLBW_SEL] to 0 for each bank that selects XAUI + * before XAUI is initialized. + */ + for (device = XAUI_FM1; device <= XAUI_FM2; device++) { + if (is_serdes_configured(device)) { + int bank = serdes_get_bank_by_device(cfg, device); + + clrbits_be32(®s->bank[bank].pllcr1, + SRDS_PLLCR1_PLL_BWSEL); + } + } +} +#endif + +/* + * Wait for the RSTDONE bit to get set, or a one-second timeout. + */ +static void wait_for_rstdone(unsigned int bank) +{ + serdes_corenet_t *srds_regs = + (void *)CONFIG_SYS_FSL_CORENET_SERDES_ADDR; + unsigned long long end_tick; + u32 rstctl; + + /* wait for reset complete or 1-second timeout */ + end_tick = usec2ticks(1000000) + get_ticks(); + do { + rstctl = in_be32(&srds_regs->bank[bank].rstctl); + if (rstctl & SRDS_RSTCTL_RSTDONE) + break; + } while (end_tick > get_ticks()); + + if (!(rstctl & SRDS_RSTCTL_RSTDONE)) + printf("SERDES: timeout resetting bank %u\n", bank + 1); +} + + +static void __soc_serdes_init(void) +{ + /* Allow for SoC-specific initialization in _serdes.c */ +}; +void soc_serdes_init(void) __attribute__((weak, alias("__soc_serdes_init"))); + void fsl_serdes_init(void) { ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); int cfg; serdes_corenet_t *srds_regs; +#ifdef CONFIG_ARCH_P5040 + serdes_corenet_t *srds2_regs; +#endif int lane, bank, idx; - enum srds_prtcl lane_prtcl; - long long end_tick; int have_bank[SRDS_MAX_BANK] = {}; #ifdef CONFIG_SYS_P4080_ERRATUM_SERDES8 u32 serdes8_devdisr = 0; @@ -282,6 +503,10 @@ void fsl_serdes_init(void) const char *srds_lpd_arg; size_t arglen; #endif +#ifdef CONFIG_SYS_P4080_ERRATUM_SERDES_A001 + int need_serdes_a001; /* true == need work-around for SERDES A001 */ +#endif +#ifdef CONFIG_SYS_P4080_ERRATUM_SERDES8 char buffer[HWCONFIG_BUFFER_SIZE]; char *buf = NULL; @@ -289,8 +514,11 @@ void fsl_serdes_init(void) * Extract hwconfig from environment since we have not properly setup * the environment but need it for ddr config params */ - if (getenv_f("hwconfig", buffer, sizeof(buffer)) > 0) + if (env_get_f("hwconfig", buffer, sizeof(buffer)) > 0) buf = buffer; +#endif + if (serdes_prtcl_map & (1 << NONE)) + return; /* Is serdes enabled at all? */ if (!(in_be32(&gur->rcwsr[5]) & FSL_CORENET_RCWSR5_SRDS_EN)) @@ -306,6 +534,17 @@ void fsl_serdes_init(void) } #ifdef CONFIG_SYS_P4080_ERRATUM_SERDES8 + /* + * Display a warning if banks two and three are not disabled in the RCW, + * since our work-around for SERDES8 depends on these banks being + * disabled at power-on. + */ +#define B2_B3 (FSL_CORENET_RCWSRn_SRDS_LPD_B2 | FSL_CORENET_RCWSRn_SRDS_LPD_B3) + if ((in_be32(&gur->rcwsr[5]) & B2_B3) != B2_B3) { + printf("Warning: SERDES8 requires banks two and " + "three to be disabled in the RCW\n"); + } + /* * Store the values of the fsl_srds_lpd_b2 and fsl_srds_lpd_b3 * hwconfig options into the srds_lpd_b[] array. See README.p4080ds @@ -319,17 +558,58 @@ void fsl_serdes_init(void) srds_lpd_b[bank] = simple_strtoul(srds_lpd_arg, NULL, 0) & 0xf; } + + if ((cfg == 0xf) || (cfg == 0x10)) { + /* + * For SERDES protocols 0xF and 0x10, force bank 3 to be + * disabled, because it is not supported. + */ + srds_lpd_b[FSL_SRDS_BANK_3] = 0xF; + } #endif /* Look for banks with all lanes disabled, and power down the bank. */ for (lane = 0; lane < SRDS_MAX_LANES; lane++) { enum srds_prtcl lane_prtcl = serdes_get_prtcl(cfg, lane); if (serdes_lane_enabled(lane)) { - have_bank[serdes_get_bank(lane)] = 1; + have_bank[serdes_get_bank_by_lane(lane)] = 1; serdes_prtcl_map |= (1 << lane_prtcl); } } +#ifdef CONFIG_ARCH_P5040 + /* + * Lanes on bank 4 on P5040 are commented-out, but for some SERDES + * protocols, these lanes are routed to SATA. We use serdes_prtcl_map + * to decide whether a protocol is supported on a given lane, so SATA + * will be identified as not supported, and therefore not initialized. + * So for protocols which use SATA on bank4, we add SATA support in + * serdes_prtcl_map. + */ + switch (cfg) { + case 0x0: + case 0x1: + case 0x2: + case 0x3: + case 0x4: + case 0x5: + case 0x6: + case 0x7: + serdes_prtcl_map |= 1 << SATA1 | 1 << SATA2; + break; + default: + srds2_regs = (void *)CONFIG_SYS_FSL_CORENET_SERDES2_ADDR; + + /* We don't need bank 4, so power it down */ + setbits_be32(&srds2_regs->bank[0].rstctl, SRDS_RSTCTL_SDPD); + } +#endif + + soc_serdes_init(); + + /* Set the first bit to indicate serdes has been initialized */ + serdes_prtcl_map |= (1 << NONE); + #ifdef CONFIG_SYS_P4080_ERRATUM_SERDES8 /* * Bank two uses the clock from bank three, so if bank two is enabled, @@ -339,15 +619,74 @@ void fsl_serdes_init(void) have_bank[FSL_SRDS_BANK_3] = 1; #endif +#ifdef CONFIG_SYS_P4080_ERRATUM_SERDES_A001 + /* + * The work-aroud for erratum SERDES-A001 is needed only if bank two + * is disabled and bank three is enabled. The converse is also true, + * but SERDES8 ensures that bank 3 is always enabled if bank 2 is + * enabled, so there's no point in complicating the code to handle + * that situation. + */ + need_serdes_a001 = + !have_bank[FSL_SRDS_BANK_2] && have_bank[FSL_SRDS_BANK_3]; +#endif + + /* Power down the banks we're not interested in */ for (bank = 0; bank < SRDS_MAX_BANK; bank++) { if (!have_bank[bank]) { printf("SERDES: bank %d disabled\n", bank + 1); +#ifdef CONFIG_SYS_P4080_ERRATUM_SERDES_A001 + /* + * Erratum SERDES-A001 says bank two needs to be powered + * down after bank three is powered up, so don't power + * down bank two here. + */ + if (!need_serdes_a001 || (bank != FSL_SRDS_BANK_2)) + setbits_be32(&srds_regs->bank[bank].rstctl, + SRDS_RSTCTL_SDPD); +#else setbits_be32(&srds_regs->bank[bank].rstctl, SRDS_RSTCTL_SDPD); +#endif } } +#ifdef CONFIG_SYS_FSL_ERRATUM_A004699 + /* + * To avoid the situation that resulted in the P4080 erratum + * SERDES-8, a given SerDes bank will use the PLLs from the previous + * bank if one of the PLL frequencies is a multiple of the other. For + * instance, if bank 3 is running at 2.5GHz and bank 2 is at 1.25GHz, + * then bank 3 will use bank 2's PLL. P5040 Erratum A-004699 says + * that, in this situation, lane synchronization is not initiated. So + * when we detect a bank with a "borrowed" PLL, we have to manually + * initiate lane synchronization. + */ + for (bank = FSL_SRDS_BANK_2; bank <= FSL_SRDS_BANK_3; bank++) { + /* Determine the first lane for this bank */ + unsigned int lane; + + for (lane = 0; lane < SRDS_MAX_LANES; lane++) + if (lanes[lane].bank == bank) + break; + idx = lanes[lane].idx; + + /* + * Check if the PLL for the bank is borrowed. The UOTHL + * bit of the first lane will tell us that. + */ + if (in_be32(&srds_regs->lane[idx].gcr0) & SRDS_GCR0_UOTHL) { + /* Manually start lane synchronization */ + setbits_be32(&srds_regs->bank[bank].pllcr0, + SRDS_PLLCR0_PVCOCNT_EN); + } + } +#endif + +#if defined(CONFIG_SYS_P4080_ERRATUM_SERDES8) || defined (CONFIG_SYS_P4080_ERRATUM_SERDES9) for (lane = 0; lane < SRDS_MAX_LANES; lane++) { + enum srds_prtcl lane_prtcl; + idx = serdes_get_lane_idx(lane); lane_prtcl = serdes_get_prtcl(cfg, lane); @@ -369,6 +708,42 @@ void fsl_serdes_init(void) printf("%s ", serdes_prtcl_str[lane_prtcl]); #endif +#ifdef CONFIG_SYS_P4080_ERRATUM_SERDES9 + /* + * Set BnTTLCRy0[FLT_SEL] = 011011 and set BnTTLCRy0[31] = 1 + * for each of the SerDes lanes selected as SGMII, XAUI, SRIO, + * or AURORA before the device is initialized. + * + * Note that this part of the SERDES-9 work-around is + * redundant if the work-around for A-4580 has already been + * applied via PBI. + */ + switch (lane_prtcl) { + case SGMII_FM1_DTSEC1: + case SGMII_FM1_DTSEC2: + case SGMII_FM1_DTSEC3: + case SGMII_FM1_DTSEC4: + case SGMII_FM2_DTSEC1: + case SGMII_FM2_DTSEC2: + case SGMII_FM2_DTSEC3: + case SGMII_FM2_DTSEC4: + case SGMII_FM2_DTSEC5: + case XAUI_FM1: + case XAUI_FM2: + case SRIO1: + case SRIO2: + case AURORA: + out_be32(&srds_regs->lane[idx].ttlcr0, + SRDS_TTLCR0_FLT_SEL_KFR_26 | + SRDS_TTLCR0_FLT_SEL_KPH_28 | + SRDS_TTLCR0_FLT_SEL_750PPM | + SRDS_TTLCR0_FREQOVD_EN); + break; + default: + break; + } +#endif + #ifdef CONFIG_SYS_P4080_ERRATUM_SERDES8 switch (lane_prtcl) { case PCIE1: @@ -414,14 +789,17 @@ void fsl_serdes_init(void) serdes8_devdisr2 |= FSL_CORENET_DEVDISR2_FM2 | FSL_CORENET_DEVDISR2_DTSEC2_4; break; + case SGMII_FM2_DTSEC5: + serdes8_devdisr2 |= FSL_CORENET_DEVDISR2_FM2 | + FSL_CORENET_DEVDISR2_DTSEC2_5; + break; case XAUI_FM1: + serdes8_devdisr2 |= FSL_CORENET_DEVDISR2_FM1 | + FSL_CORENET_DEVDISR2_10GEC1; + break; case XAUI_FM2: - if (lane_prtcl == XAUI_FM1) - serdes8_devdisr2 |= FSL_CORENET_DEVDISR2_FM1 | - FSL_CORENET_DEVDISR2_10GEC1; - else - serdes8_devdisr2 |= FSL_CORENET_DEVDISR2_FM2 | - FSL_CORENET_DEVDISR2_10GEC2; + serdes8_devdisr2 |= FSL_CORENET_DEVDISR2_FM2 | + FSL_CORENET_DEVDISR2_10GEC2; break; case AURORA: break; @@ -431,14 +809,17 @@ void fsl_serdes_init(void) #endif } +#endif #ifdef DEBUG puts("\n"); #endif - for (idx = 0; idx < SRDS_MAX_BANK; idx++) { - u32 rstctl; +#ifdef CONFIG_SYS_P4080_ERRATUM_SERDES_A005 + p4080_erratum_serdes_a005(srds_regs, cfg); +#endif + for (idx = 0; idx < SRDS_MAX_BANK; idx++) { bank = idx; #ifdef CONFIG_SYS_P4080_ERRATUM_SERDES8 @@ -469,26 +850,36 @@ void fsl_serdes_init(void) p4080_erratum_serdes8(srds_regs, gur, serdes8_devdisr, serdes8_devdisr2, cfg); } else if (idx == 2) { - /* Eable bank two now that bank three is enabled. */ + /* Enable bank two now that bank three is enabled. */ enable_bank(gur, FSL_SRDS_BANK_2); } #endif - /* reset banks for errata */ - setbits_be32(&srds_regs->bank[bank].rstctl, SRDS_RSTCTL_RST); + wait_for_rstdone(bank); + } - /* wait for reset complete or 1-second timeout */ - end_tick = usec2ticks(1000000) + get_ticks(); - do { - rstctl = in_be32(&srds_regs->bank[bank].rstctl); - if (rstctl & SRDS_RSTCTL_RSTDONE) - break; - } while (end_tick > get_ticks()); +#ifdef CONFIG_SYS_P4080_ERRATUM_SERDES_A001 + if (need_serdes_a001) { + /* Bank 3 has been enabled, so now we can disable bank 2 */ + setbits_be32(&srds_regs->bank[FSL_SRDS_BANK_2].rstctl, + SRDS_RSTCTL_SDPD); + } +#endif +} - if (!(rstctl & SRDS_RSTCTL_RSTDONE)) { - printf("SERDES: timeout resetting bank %d\n", - bank + 1); - continue; - } +const char *serdes_clock_to_string(u32 clock) +{ + switch (clock) { + case SRDS_PLLCR0_RFCK_SEL_100: + return "100"; + case SRDS_PLLCR0_RFCK_SEL_125: + return "125"; + case SRDS_PLLCR0_RFCK_SEL_156_25: + return "156.25"; + case SRDS_PLLCR0_RFCK_SEL_161_13: + return "161.1328123"; + default: + return "150"; } } +