diff options
author | Wolfgang Denk <wd@pollux.denx.de> | 2007-03-08 22:42:44 +0100 |
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committer | Wolfgang Denk <wd@denx.de> | 2007-03-08 22:42:44 +0100 |
commit | 37896293bc991bddb75ccac887b54e9a61f36320 (patch) | |
tree | 0c51c9b1254d3805323299f433e3ea7b1d0e281c /cpu | |
parent | 769104c9356594deb2092e204a39c05b33202d6c (diff) | |
parent | 781e026c8aa6f7e9eb5f0e72cc4d20971219b148 (diff) | |
download | u-boot-imx-37896293bc991bddb75ccac887b54e9a61f36320.zip u-boot-imx-37896293bc991bddb75ccac887b54e9a61f36320.tar.gz u-boot-imx-37896293bc991bddb75ccac887b54e9a61f36320.tar.bz2 |
Merge with /home/wd/git/u-boot/custodian/u-boot-mpc83xx
Diffstat (limited to 'cpu')
-rw-r--r-- | cpu/mpc83xx/cpu.c | 91 | ||||
-rw-r--r-- | cpu/mpc83xx/cpu_init.c | 47 | ||||
-rw-r--r-- | cpu/mpc83xx/qe_io.c | 2 | ||||
-rw-r--r-- | cpu/mpc83xx/spd_sdram.c | 388 | ||||
-rw-r--r-- | cpu/mpc83xx/speed.c | 61 | ||||
-rw-r--r-- | cpu/mpc83xx/start.S | 28 |
6 files changed, 498 insertions, 119 deletions
diff --git a/cpu/mpc83xx/cpu.c b/cpu/mpc83xx/cpu.c index 1b51078..e4bc405 100644 --- a/cpu/mpc83xx/cpu.c +++ b/cpu/mpc83xx/cpu.c @@ -56,49 +56,78 @@ int checkcpu(void) switch(spridr) { case SPR_8349E_REV10: case SPR_8349E_REV11: + case SPR_8349E_REV31: puts("MPC8349E, "); break; case SPR_8349_REV10: case SPR_8349_REV11: + case SPR_8349_REV31: puts("MPC8349, "); break; case SPR_8347E_REV10_TBGA: case SPR_8347E_REV11_TBGA: + case SPR_8347E_REV31_TBGA: case SPR_8347E_REV10_PBGA: case SPR_8347E_REV11_PBGA: + case SPR_8347E_REV31_PBGA: puts("MPC8347E, "); break; case SPR_8347_REV10_TBGA: case SPR_8347_REV11_TBGA: + case SPR_8347_REV31_TBGA: case SPR_8347_REV10_PBGA: case SPR_8347_REV11_PBGA: + case SPR_8347_REV31_PBGA: puts("MPC8347, "); break; case SPR_8343E_REV10: case SPR_8343E_REV11: + case SPR_8343E_REV31: puts("MPC8343E, "); break; case SPR_8343_REV10: case SPR_8343_REV11: + case SPR_8343_REV31: puts("MPC8343, "); break; case SPR_8360E_REV10: case SPR_8360E_REV11: case SPR_8360E_REV12: + case SPR_8360E_REV20: puts("MPC8360E, "); break; case SPR_8360_REV10: case SPR_8360_REV11: case SPR_8360_REV12: + case SPR_8360_REV20: puts("MPC8360, "); break; + case SPR_8323E_REV10: + case SPR_8323E_REV11: + puts("MPC8323E, "); + break; + case SPR_8323_REV10: + case SPR_8323_REV11: + puts("MPC8323, "); + break; + case SPR_8321E_REV10: + case SPR_8321E_REV11: + puts("MPC8321E, "); + break; + case SPR_8321_REV10: + case SPR_8321_REV11: + puts("MPC8321, "); + break; default: - puts("Rev: Unknown\n"); - return -1; /* Not sure what this is */ + puts("Rev: Unknown revision number.\nWarning: Unsupported cpu revision!\n"); + return 0; } -#if defined(CONFIG_MPC8349) - printf("Rev: %02x at %s MHz\n", (spridr & 0x0000FFFF)>>4 |(spridr & 0x0000000F), strmhz(buf, clock)); +#if defined(CONFIG_MPC834X) + /* Multiple revisons of 834x processors may have the same SPRIDR value. + * So use PVR to identify the revision number. + */ + printf("Rev: %02x at %s MHz\n", PVR_MAJ(pvr)<<4 | PVR_MIN(pvr), strmhz(buf, clock)); #else printf("Rev: %02x at %s MHz\n", spridr & 0x0000FFFF, strmhz(buf, clock)); #endif @@ -250,7 +279,6 @@ unsigned long get_tbclk(void) #if defined(CONFIG_WATCHDOG) void watchdog_reset (void) { -#ifdef CONFIG_MPC834X int re_enable = disable_interrupts(); /* Reset the 83xx watchdog */ @@ -260,9 +288,6 @@ void watchdog_reset (void) if (re_enable) enable_interrupts (); -#else - hang(); -#endif } #endif @@ -292,14 +317,64 @@ ft_cpu_setup(void *blob, bd_t *bd) *p = cpu_to_be32(clock); #ifdef CONFIG_MPC83XX_TSEC1 + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@24000/mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@24000/local-mac-address", &len); + if (p != NULL) memcpy(p, bd->bi_enetaddr, 6); #endif #ifdef CONFIG_MPC83XX_TSEC2 + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@25000/mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@25000/local-mac-address", &len); + if (p != NULL) memcpy(p, bd->bi_enet1addr, 6); #endif + +#ifdef CONFIG_UEC_ETH1 +#if CFG_UEC1_UCC_NUM == 0 /* UCC1 */ + p = ft_get_prop(blob, "/" OF_QE "/ucc@2000/mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); + + p = ft_get_prop(blob, "/" OF_QE "/ucc@2000/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); +#elif CFG_UEC1_UCC_NUM == 2 /* UCC3 */ + p = ft_get_prop(blob, "/" OF_QE "/ucc@2200/mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); + + p = ft_get_prop(blob, "/" OF_QE "/ucc@2200/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); +#endif +#endif + +#ifdef CONFIG_UEC_ETH2 +#if CFG_UEC2_UCC_NUM == 1 /* UCC2 */ + p = ft_get_prop(blob, "/" OF_QE "/ucc@3000/mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); + + p = ft_get_prop(blob, "/" OF_QE "/ucc@3000/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); +#elif CFG_UEC2_UCC_NUM == 3 /* UCC4 */ + p = ft_get_prop(blob, "/" OF_QE "/ucc@3200/mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); + + p = ft_get_prop(blob, "/" OF_QE "/ucc@3200/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); +#endif +#endif } #endif diff --git a/cpu/mpc83xx/cpu_init.c b/cpu/mpc83xx/cpu_init.c index e5725fb..3ac9161 100644 --- a/cpu/mpc83xx/cpu_init.c +++ b/cpu/mpc83xx/cpu_init.c @@ -69,31 +69,53 @@ void cpu_init_f (volatile immap_t * im) #ifdef CFG_ACR_PIPE_DEP /* Arbiter pipeline depth */ - im->arbiter.acr = (im->arbiter.acr & ~ACR_PIPE_DEP) | (3 << ACR_PIPE_DEP_SHIFT); + im->arbiter.acr = (im->arbiter.acr & ~ACR_PIPE_DEP) | + (CFG_ACR_PIPE_DEP << ACR_PIPE_DEP_SHIFT); #endif #ifdef CFG_SPCR_TSEC1EP /* TSEC1 Emergency priority */ - im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC1EP) | (3 << SPCR_TSEC1EP_SHIFT); + im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC1EP) | (CFG_SPCR_TSEC1EP << SPCR_TSEC1EP_SHIFT); #endif #ifdef CFG_SPCR_TSEC2EP /* TSEC2 Emergency priority */ - im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC2EP) | (3 << SPCR_TSEC2EP_SHIFT); + im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC2EP) | (CFG_SPCR_TSEC2EP << SPCR_TSEC2EP_SHIFT); #endif +#ifdef CONFIG_MPC834X #ifdef CFG_SCCR_TSEC1CM /* TSEC1 clock mode */ - im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC1CM) | (1 << SCCR_TSEC1CM_SHIFT); + im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC1CM) | (CFG_SCCR_TSEC1CM << SCCR_TSEC1CM_SHIFT); #endif #ifdef CFG_SCCR_TSEC2CM /* TSEC2 & I2C1 clock mode */ - im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC2CM) | (1 << SCCR_TSEC2CM_SHIFT); + im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC2CM) | (CFG_SCCR_TSEC2CM << SCCR_TSEC2CM_SHIFT); +#endif +#ifdef CFG_SCCR_USBMPHCM + /* USB MPH clock mode */ + im->clk.sccr = (im->clk.sccr & ~SCCR_USBMPHCM) | (CFG_SCCR_USBMPHCM << SCCR_USBMPHCM_SHIFT); +#endif +#endif /* CONFIG_MPC834X */ + +#ifdef CFG_SCCR_PCICM + /* PCI & DMA clock mode */ + im->clk.sccr = (im->clk.sccr & ~SCCR_PCICM) | (CFG_SCCR_PCICM << SCCR_PCICM_SHIFT); +#endif + +#ifdef CFG_SCCR_USBDRCM + /* USB DR clock mode */ + im->clk.sccr = (im->clk.sccr & ~SCCR_USBDRCM) | (CFG_SCCR_USBDRCM << SCCR_USBDRCM_SHIFT); +#endif + +#ifdef CFG_SCCR_ENCCM + /* Encryption clock mode */ + im->clk.sccr = (im->clk.sccr & ~SCCR_ENCCM) | (CFG_SCCR_ENCCM << SCCR_PCICM_SHIFT); #endif #ifdef CFG_ACR_RPTCNT /* Arbiter repeat count */ - im->arbiter.acr = ((im->arbiter.acr & ~(ACR_RPTCNT)) | (3 << ACR_RPTCNT_SHIFT)); + im->arbiter.acr = ((im->arbiter.acr & ~(ACR_RPTCNT)) | (CFG_ACR_RPTCNT << ACR_RPTCNT_SHIFT)); #endif /* RSR - Reset Status Register - clear all status (4.6.1.3) */ @@ -119,6 +141,11 @@ void cpu_init_f (volatile immap_t * im) #ifdef CFG_SICRL im->sysconf.sicrl = CFG_SICRL; #endif + /* DDR control driver register */ +#ifdef CFG_DDRCDR + im->sysconf.ddrcdr = CFG_DDRCDR; +#endif + #ifdef CONFIG_QE /* Config QE ioports */ config_qe_ioports(); @@ -202,12 +229,12 @@ void cpu_init_f (volatile immap_t * im) im->sysconf.lblaw[7].ar = CFG_LBLAWAR7_PRELIM; #endif #ifdef CFG_GPIO1_PRELIM - im->pgio[0].dir = CFG_GPIO1_DIR; - im->pgio[0].dat = CFG_GPIO1_DAT; + im->gpio[0].dir = CFG_GPIO1_DIR; + im->gpio[0].dat = CFG_GPIO1_DAT; #endif #ifdef CFG_GPIO2_PRELIM - im->pgio[1].dir = CFG_GPIO2_DIR; - im->pgio[1].dat = CFG_GPIO2_DAT; + im->gpio[1].dir = CFG_GPIO2_DIR; + im->gpio[1].dat = CFG_GPIO2_DAT; #endif } diff --git a/cpu/mpc83xx/qe_io.c b/cpu/mpc83xx/qe_io.c index ebe3487..8b3937a 100644 --- a/cpu/mpc83xx/qe_io.c +++ b/cpu/mpc83xx/qe_io.c @@ -35,7 +35,7 @@ void qe_config_iopin(u8 port, u8 pin, int dir, int open_drain, int assign) u32 pin_1bit_mask; u32 tmp_val; volatile immap_t *im = (volatile immap_t *)CFG_IMMR; - volatile gpio83xx_t *par_io =(volatile gpio83xx_t *)&im->gpio; + volatile qepio83xx_t *par_io = (volatile qepio83xx_t *)&im->qepio; /* Caculate pin location and 2bit mask and dir */ pin_2bit_mask = (u32)(0x3 << (NUM_OF_PINS-(pin%(NUM_OF_PINS/2)+1)*2)); diff --git a/cpu/mpc83xx/spd_sdram.c b/cpu/mpc83xx/spd_sdram.c index 0d93f2e..d9b8753 100644 --- a/cpu/mpc83xx/spd_sdram.c +++ b/cpu/mpc83xx/spd_sdram.c @@ -106,16 +106,29 @@ long int spd_sdram() volatile ddr83xx_t *ddr = &immap->ddr; volatile law83xx_t *ecm = &immap->sysconf.ddrlaw[0]; spd_eeprom_t spd; + unsigned int n_ranks; + unsigned int odt_rd_cfg, odt_wr_cfg; + unsigned char twr_clk, twtr_clk; + unsigned char sdram_type; unsigned int memsize; unsigned int law_size; unsigned char caslat, caslat_ctrl; + unsigned int trfc, trfc_clk, trfc_low, trfc_high; + unsigned int trcd_clk, trtp_clk; + unsigned char cke_min_clk; + unsigned char add_lat, wr_lat; + unsigned char wr_data_delay; + unsigned char four_act; + unsigned char cpo; unsigned char burstlen; + unsigned char odt_cfg, mode_odt_enable; unsigned int max_bus_clk; unsigned int max_data_rate, effective_data_rate; unsigned int ddrc_clk; unsigned int refresh_clk; - unsigned sdram_cfg; + unsigned int sdram_cfg; unsigned int ddrc_ecc_enable; + unsigned int pvr = get_pvr(); /* Read SPD parameters with I2C */ CFG_READ_SPD(SPD_EEPROM_ADDRESS, 0, 1, (uchar *) & spd, sizeof (spd)); @@ -123,19 +136,25 @@ long int spd_sdram() spd_debug(&spd); #endif /* Check the memory type */ - if (spd.mem_type != SPD_MEMTYPE_DDR) { + if (spd.mem_type != SPD_MEMTYPE_DDR && spd.mem_type != SPD_MEMTYPE_DDR2) { printf("DDR: Module mem type is %02X\n", spd.mem_type); return 0; } /* Check the number of physical bank */ - if (spd.nrows > 2) { - printf("DDR: The number of physical bank is %02X\n", spd.nrows); + if (spd.mem_type == SPD_MEMTYPE_DDR) { + n_ranks = spd.nrows; + } else { + n_ranks = (spd.nrows & 0x7) + 1; + } + + if (n_ranks > 2) { + printf("DDR: The number of physical bank is %02X\n", n_ranks); return 0; } /* Check if the number of row of the module is in the range of DDRC */ - if (spd.nrow_addr < 12 || spd.nrow_addr > 14) { + if (spd.nrow_addr < 12 || spd.nrow_addr > 15) { printf("DDR: Row number is out of range of DDRC, row=%02X\n", spd.nrow_addr); return 0; @@ -147,20 +166,43 @@ long int spd_sdram() spd.ncol_addr); return 0; } + +#ifdef CFG_DDRCDR_VALUE + /* + * Adjust DDR II IO voltage biasing. It just makes it work. + */ + if(spd.mem_type == SPD_MEMTYPE_DDR2) { + immap->sysconf.ddrcdr = CFG_DDRCDR_VALUE; + } +#endif + + /* + * ODT configuration recommendation from DDR Controller Chapter. + */ + odt_rd_cfg = 0; /* Never assert ODT */ + odt_wr_cfg = 0; /* Never assert ODT */ + if (spd.mem_type == SPD_MEMTYPE_DDR2) { + odt_wr_cfg = 1; /* Assert ODT on writes to CSn */ + } + /* Setup DDR chip select register */ #ifdef CFG_83XX_DDR_USES_CS0 ddr->csbnds[0].csbnds = (banksize(spd.row_dens) >> 24) - 1; ddr->cs_config[0] = ( 1 << 31 + | (odt_rd_cfg << 20) + | (odt_wr_cfg << 16) | (spd.nrow_addr - 12) << 8 | (spd.ncol_addr - 8) ); debug("\n"); debug("cs0_bnds = 0x%08x\n",ddr->csbnds[0].csbnds); debug("cs0_config = 0x%08x\n",ddr->cs_config[0]); - if (spd.nrows == 2) { + if (n_ranks == 2) { ddr->csbnds[1].csbnds = ( (banksize(spd.row_dens) >> 8) | ((banksize(spd.row_dens) >> 23) - 1) ); ddr->cs_config[1] = ( 1<<31 + | (odt_rd_cfg << 20) + | (odt_wr_cfg << 16) | (spd.nrow_addr-12) << 8 | (spd.ncol_addr-8) ); debug("cs1_bnds = 0x%08x\n",ddr->csbnds[1].csbnds); @@ -170,16 +212,20 @@ long int spd_sdram() #else ddr->csbnds[2].csbnds = (banksize(spd.row_dens) >> 24) - 1; ddr->cs_config[2] = ( 1 << 31 + | (odt_rd_cfg << 20) + | (odt_wr_cfg << 16) | (spd.nrow_addr - 12) << 8 | (spd.ncol_addr - 8) ); debug("\n"); debug("cs2_bnds = 0x%08x\n",ddr->csbnds[2].csbnds); debug("cs2_config = 0x%08x\n",ddr->cs_config[2]); - if (spd.nrows == 2) { + if (n_ranks == 2) { ddr->csbnds[3].csbnds = ( (banksize(spd.row_dens) >> 8) | ((banksize(spd.row_dens) >> 23) - 1) ); ddr->cs_config[3] = ( 1<<31 + | (odt_rd_cfg << 20) + | (odt_wr_cfg << 16) | (spd.nrow_addr-12) << 8 | (spd.ncol_addr-8) ); debug("cs3_bnds = 0x%08x\n",ddr->csbnds[3].csbnds); @@ -187,15 +233,10 @@ long int spd_sdram() } #endif - if (spd.mem_type != 0x07) { - puts("No DDR module found!\n"); - return 0; - } - /* * Figure out memory size in Megabytes. */ - memsize = spd.nrows * banksize(spd.row_dens) / 0x100000; + memsize = n_ranks * banksize(spd.row_dens) / 0x100000; /* * First supported LAW size is 16M, at LAWAR_SIZE_16M == 23. @@ -215,24 +256,32 @@ long int spd_sdram() * in the spd.cas_lat field. Translate it to a DDR * controller field value: * - * CAS Lat DDR I Ctrl - * Clocks SPD Bit Value - * -------+--------+--------- - * 1.0 0 001 - * 1.5 1 010 - * 2.0 2 011 - * 2.5 3 100 - * 3.0 4 101 - * 3.5 5 110 - * 4.0 6 111 + * CAS Lat DDR I DDR II Ctrl + * Clocks SPD Bit SPD Bit Value + * ------- ------- ------- ----- + * 1.0 0 0001 + * 1.5 1 0010 + * 2.0 2 2 0011 + * 2.5 3 0100 + * 3.0 4 3 0101 + * 3.5 5 0110 + * 4.0 6 4 0111 + * 4.5 1000 + * 5.0 5 1001 */ caslat = __ilog2(spd.cas_lat); - - if (caslat > 6 ) { - printf("DDR: Invalid SPD CAS Latency, caslat=%02X\n", - spd.cas_lat); + if ((spd.mem_type == SPD_MEMTYPE_DDR) + && (caslat > 6)) { + printf("DDR I: Invalid SPD CAS Latency: 0x%x.\n", spd.cas_lat); + return 0; + } else if (spd.mem_type == SPD_MEMTYPE_DDR2 + && (caslat < 2 || caslat > 5)) { + printf("DDR II: Invalid SPD CAS Latency: 0x%x.\n", + spd.cas_lat); return 0; } + debug("DDR: caslat SPD bit is %d\n", caslat); + max_bus_clk = 1000 *10 / (((spd.clk_cycle & 0xF0) >> 4) * 10 + (spd.clk_cycle & 0x0f)); max_data_rate = max_bus_clk * 2; @@ -240,10 +289,11 @@ long int spd_sdram() debug("DDR:Module maximum data rate is: %dMhz\n", max_data_rate); ddrc_clk = gd->ddr_clk / 1000000; + effective_data_rate = 0; - if (max_data_rate >= 390) { /* it is DDR 400 */ - if (ddrc_clk <= 410 && ddrc_clk > 350) { - /* DDR controller clk at 350~410 */ + if (max_data_rate >= 390 && max_data_rate < 460) { /* it is DDR 400 */ + if (ddrc_clk <= 460 && ddrc_clk > 350) { + /* DDR controller clk at 350~460 */ effective_data_rate = 400; /* 5ns */ caslat = caslat; } else if (ddrc_clk <= 350 && ddrc_clk > 280) { @@ -258,16 +308,16 @@ long int spd_sdram() effective_data_rate = 266; /* 7.5ns */ if (spd.clk_cycle3 == 0x75) caslat = caslat - 2; - else if (spd.clk_cycle2 == 0x60) + else if (spd.clk_cycle2 == 0x75) caslat = caslat - 1; else caslat = caslat; } else if (ddrc_clk <= 230 && ddrc_clk > 90) { /* DDR controller clk at 90~230 */ effective_data_rate = 200; /* 10ns */ - if (spd.clk_cycle3 == 0x75) + if (spd.clk_cycle3 == 0xa0) caslat = caslat - 2; - else if (spd.clk_cycle2 == 0x60) + else if (spd.clk_cycle2 == 0xa0) caslat = caslat - 1; else caslat = caslat; @@ -289,7 +339,7 @@ long int spd_sdram() effective_data_rate = 200; /* 10ns */ if (spd.clk_cycle3 == 0xa0) caslat = caslat - 2; - else if (spd.clk_cycle2 == 0x75) + else if (spd.clk_cycle2 == 0xa0) caslat = caslat - 1; else caslat = caslat; @@ -330,41 +380,197 @@ long int spd_sdram() * Errata DDR6 work around: input enable 2 cycles earlier. * including MPC834x Rev1.0/1.1 and MPC8360 Rev1.1/1.2. */ - if (caslat == 2) - ddr->debug_reg = 0x201c0000; /* CL=2 */ - else if (caslat == 3) - ddr->debug_reg = 0x202c0000; /* CL=2.5 */ - else if (caslat == 4) - ddr->debug_reg = 0x202c0000; /* CL=3.0 */ + if(PVR_MAJ(pvr) <= 1 && spd.mem_type == SPD_MEMTYPE_DDR){ + if (caslat == 2) + ddr->debug_reg = 0x201c0000; /* CL=2 */ + else if (caslat == 3) + ddr->debug_reg = 0x202c0000; /* CL=2.5 */ + else if (caslat == 4) + ddr->debug_reg = 0x202c0000; /* CL=3.0 */ - __asm__ __volatile__ ("sync"); + __asm__ __volatile__ ("sync"); - debug("Errata DDR6 (debug_reg=0x%08x)\n", ddr->debug_reg); + debug("Errata DDR6 (debug_reg=0x%08x)\n", ddr->debug_reg); + } /* - * note: caslat must also be programmed into ddr->sdram_mode - * register. - * - * note: WRREC(Twr) and WRTORD(Twtr) are not in SPD, - * use conservative value here. + * Convert caslat clocks to DDR controller value. + * Force caslat_ctrl to be DDR Controller field-sized. + */ + if (spd.mem_type == SPD_MEMTYPE_DDR) { + caslat_ctrl = (caslat + 1) & 0x07; + } else { + caslat_ctrl = (2 * caslat - 1) & 0x0f; + } + + debug("DDR: effective data rate is %d MHz\n", effective_data_rate); + debug("DDR: caslat SPD bit is %d, controller field is 0x%x\n", + caslat, caslat_ctrl); + + /* + * Timing Config 0. + * Avoid writing for DDR I. + */ + if (spd.mem_type == SPD_MEMTYPE_DDR2) { + unsigned char taxpd_clk = 8; /* By the book. */ + unsigned char tmrd_clk = 2; /* By the book. */ + unsigned char act_pd_exit = 2; /* Empirical? */ + unsigned char pre_pd_exit = 6; /* Empirical? */ + + ddr->timing_cfg_0 = (0 + | ((act_pd_exit & 0x7) << 20) /* ACT_PD_EXIT */ + | ((pre_pd_exit & 0x7) << 16) /* PRE_PD_EXIT */ + | ((taxpd_clk & 0xf) << 8) /* ODT_PD_EXIT */ + | ((tmrd_clk & 0xf) << 0) /* MRS_CYC */ + ); + debug("DDR: timing_cfg_0 = 0x%08x\n", ddr->timing_cfg_0); + } + + /* + * For DDR I, WRREC(Twr) and WRTORD(Twtr) are not in SPD, + * use conservative value. + * For DDR II, they are bytes 36 and 37, in quarter nanos. */ - caslat_ctrl = (caslat + 1) & 0x07; /* see as above */ + + if (spd.mem_type == SPD_MEMTYPE_DDR) { + twr_clk = 3; /* Clocks */ + twtr_clk = 1; /* Clocks */ + } else { + twr_clk = picos_to_clk(spd.twr * 250); + twtr_clk = picos_to_clk(spd.twtr * 250); + } + + /* + * Calculate Trfc, in picos. + * DDR I: Byte 42 straight up in ns. + * DDR II: Byte 40 and 42 swizzled some, in ns. + */ + if (spd.mem_type == SPD_MEMTYPE_DDR) { + trfc = spd.trfc * 1000; /* up to ps */ + } else { + unsigned int byte40_table_ps[8] = { + 0, + 250, + 330, + 500, + 660, + 750, + 0, + 0 + }; + + trfc = (((spd.trctrfc_ext & 0x1) * 256) + spd.trfc) * 1000 + + byte40_table_ps[(spd.trctrfc_ext >> 1) & 0x7]; + } + trfc_clk = picos_to_clk(trfc); + + /* + * Trcd, Byte 29, from quarter nanos to ps and clocks. + */ + trcd_clk = picos_to_clk(spd.trcd * 250) & 0x7; + + /* + * Convert trfc_clk to DDR controller fields. DDR I should + * fit in the REFREC field (16-19) of TIMING_CFG_1, but the + * 83xx controller has an extended REFREC field of three bits. + * The controller automatically adds 8 clocks to this value, + * so preadjust it down 8 first before splitting it up. + */ + trfc_low = (trfc_clk - 8) & 0xf; + trfc_high = ((trfc_clk - 8) >> 4) & 0x3; ddr->timing_cfg_1 = - (((picos_to_clk(spd.trp * 250) & 0x07) << 28 ) | - ((picos_to_clk(spd.tras * 1000) & 0x0f ) << 24 ) | - ((picos_to_clk(spd.trcd * 250) & 0x07) << 20 ) | - ((caslat_ctrl & 0x07) << 16 ) | - (((picos_to_clk(spd.trfc * 1000) - 8) & 0x0f) << 12 ) | - ( 0x300 ) | - ((picos_to_clk(spd.trrd * 250) & 0x07) << 4) | 1); + (((picos_to_clk(spd.trp * 250) & 0x07) << 28 ) | /* PRETOACT */ + ((picos_to_clk(spd.tras * 1000) & 0x0f ) << 24 ) | /* ACTTOPRE */ + (trcd_clk << 20 ) | /* ACTTORW */ + (caslat_ctrl << 16 ) | /* CASLAT */ + (trfc_low << 12 ) | /* REFEC */ + ((twr_clk & 0x07) << 8) | /* WRRREC */ + ((picos_to_clk(spd.trrd * 250) & 0x07) << 4) | /* ACTTOACT */ + ((twtr_clk & 0x07) << 0) /* WRTORD */ + ); + + /* + * Additive Latency + * For DDR I, 0. + * For DDR II, with ODT enabled, use "a value" less than ACTTORW, + * which comes from Trcd, and also note that: + * add_lat + caslat must be >= 4 + */ + add_lat = 0; + if (spd.mem_type == SPD_MEMTYPE_DDR2 + && (odt_wr_cfg || odt_rd_cfg) + && (caslat < 4)) { + add_lat = trcd_clk - 1; + if ((add_lat + caslat) < 4) { + add_lat = 0; + } + } - ddr->timing_cfg_2 = 0x00000800; + /* + * Write Data Delay + * Historically 0x2 == 4/8 clock delay. + * Empirically, 0x3 == 6/8 clock delay is suggested for DDR I 266. + */ + wr_data_delay = 2; + + /* + * Write Latency + * Read to Precharge + * Minimum CKE Pulse Width. + * Four Activate Window + */ + if (spd.mem_type == SPD_MEMTYPE_DDR) { + /* + * This is a lie. It should really be 1, but if it is + * set to 1, bits overlap into the old controller's + * otherwise unused ACSM field. If we leave it 0, then + * the HW will magically treat it as 1 for DDR 1. Oh Yea. + */ + wr_lat = 0; + + trtp_clk = 2; /* By the book. */ + cke_min_clk = 1; /* By the book. */ + four_act = 1; /* By the book. */ + + } else { + wr_lat = caslat - 1; + + /* Convert SPD value from quarter nanos to picos. */ + trtp_clk = picos_to_clk(spd.trtp * 250); + + cke_min_clk = 3; /* By the book. */ + four_act = picos_to_clk(37500); /* By the book. 1k pages? */ + } + + /* + * Empirically set ~MCAS-to-preamble override for DDR 2. + * Your milage will vary. + */ + cpo = 0; + if (spd.mem_type == SPD_MEMTYPE_DDR2) { + if (effective_data_rate == 266 || effective_data_rate == 333) { + cpo = 0x7; /* READ_LAT + 5/4 */ + } else if (effective_data_rate == 400) { + cpo = 0x9; /* READ_LAT + 7/4 */ + } else { + /* Automatic calibration */ + cpo = 0x1f; + } + } + + ddr->timing_cfg_2 = (0 + | ((add_lat & 0x7) << 28) /* ADD_LAT */ + | ((cpo & 0x1f) << 23) /* CPO */ + | ((wr_lat & 0x7) << 19) /* WR_LAT */ + | ((trtp_clk & 0x7) << 13) /* RD_TO_PRE */ + | ((wr_data_delay & 0x7) << 10) /* WR_DATA_DELAY */ + | ((cke_min_clk & 0x7) << 6) /* CKE_PLS */ + | ((four_act & 0x1f) << 0) /* FOUR_ACT */ + ); debug("DDR:timing_cfg_1=0x%08x\n", ddr->timing_cfg_1); debug("DDR:timing_cfg_2=0x%08x\n", ddr->timing_cfg_2); - /* Setup init value, but not enable */ - ddr->sdram_cfg = 0x42000000; /* Check DIMM data bus width */ if (spd.dataw_lsb == 0x20) { @@ -384,7 +590,8 @@ long int spd_sdram() /* Burst length is always 4 for 64 bit data bus, 8 for 32 bit data bus, Burst type is sequential */ - switch (caslat) { + if (spd.mem_type == SPD_MEMTYPE_DDR) { + switch (caslat) { case 1: ddr->sdram_mode = 0x50 | burstlen; /* CL=1.5 */ break; @@ -400,9 +607,36 @@ long int spd_sdram() default: printf("DDR:only CL 1.5, 2.0, 2.5, 3.0 is supported\n"); return 0; + } + } else { + mode_odt_enable = 0x0; /* Default disabled */ + if (odt_wr_cfg || odt_rd_cfg) { + /* + * Bits 6 and 2 in Extended MRS(1) + * Bit 2 == 0x04 == 75 Ohm, with 2 DIMM modules. + * Bit 6 == 0x40 == 150 Ohm, with 1 DIMM module. + */ + mode_odt_enable = 0x40; /* 150 Ohm */ + } + + ddr->sdram_mode = + (0 + | (1 << (16 + 10)) /* DQS Differential disable */ + | (add_lat << (16 + 3)) /* Additive Latency in EMRS1 */ + | (mode_odt_enable << 16) /* ODT Enable in EMRS1 */ + | ((twr_clk >> 1) << 9) /* Write Recovery Autopre */ + | (caslat << 4) /* caslat */ + | (burstlen << 0) /* Burst length */ + ); } debug("DDR:sdram_mode=0x%08x\n", ddr->sdram_mode); + /* + * Clear EMRS2 and EMRS3. + */ + ddr->sdram_mode2 = 0; + debug("DDR: sdram_mode2 = 0x%08x\n", ddr->sdram_mode2); + switch (spd.refresh) { case 0x00: case 0x80: @@ -440,10 +674,31 @@ long int spd_sdram() ddr->sdram_interval = ((refresh_clk & 0x3fff) << 16) | 0x100; debug("DDR:sdram_interval=0x%08x\n", ddr->sdram_interval); + /* + * SDRAM Cfg 2 + */ + odt_cfg = 0; + if (odt_rd_cfg | odt_wr_cfg) { + odt_cfg = 0x2; /* ODT to IOs during reads */ + } + if (spd.mem_type == SPD_MEMTYPE_DDR2) { + ddr->sdram_cfg2 = (0 + | (0 << 26) /* True DQS */ + | (odt_cfg << 21) /* ODT only read */ + | (1 << 12) /* 1 refresh at a time */ + ); + + debug("DDR: sdram_cfg2 = 0x%08x\n", ddr->sdram_cfg2); + } + +#ifdef CFG_DDR_SDRAM_CLK_CNTL /* Optional platform specific value */ + ddr->sdram_clk_cntl = CFG_DDR_SDRAM_CLK_CNTL; +#else /* SS_EN = 0, source synchronous disable * CLK_ADJST = 0, MCK/MCK# is launched aligned with addr/cmd */ ddr->sdram_clk_cntl = 0x00000000; +#endif debug("DDR:sdram_clk_cntl=0x%08x\n", ddr->sdram_clk_cntl); asm("sync;isync"); @@ -458,11 +713,22 @@ long int spd_sdram() * * sdram_cfg[0] = 1 (ddr sdram logic enable) * sdram_cfg[1] = 1 (self-refresh-enable) - * sdram_cfg[6:7] = 2 (SDRAM type = DDR SDRAM) + * sdram_cfg[5:7] = (SDRAM type = DDR SDRAM) + * 010 DDR 1 SDRAM + * 011 DDR 2 SDRAM * sdram_cfg[12] = 0 (32_BE =0 , 64 bit bus mode) * sdram_cfg[13] = 0 (8_BE =0, 4-beat bursts) */ - sdram_cfg = 0xC2000000; + if (spd.mem_type == SPD_MEMTYPE_DDR) + sdram_type = 2; + else + sdram_type = 3; + + sdram_cfg = (0 + | (1 << 31) /* DDR enable */ + | (1 << 30) /* Self refresh */ + | (sdram_type << 24) /* SDRAM type */ + ); /* sdram_cfg[3] = RD_EN - registered DIMM enable */ if (spd.mod_attr & 0x02) diff --git a/cpu/mpc83xx/speed.c b/cpu/mpc83xx/speed.c index 7e53b1e..c759930 100644 --- a/cpu/mpc83xx/speed.c +++ b/cpu/mpc83xx/speed.c @@ -99,7 +99,7 @@ int get_clocks(void) u32 lcrr; u32 csb_clk; -#if defined(CONFIG_MPC8349) +#if defined(CONFIG_MPC834X) u32 tsec1_clk; u32 tsec2_clk; u32 usbmph_clk; @@ -107,15 +107,19 @@ int get_clocks(void) #endif u32 core_clk; u32 i2c1_clk; +#if !defined(CONFIG_MPC832X) u32 i2c2_clk; +#endif u32 enc_clk; u32 lbiu_clk; u32 lclk_clk; u32 ddr_clk; -#if defined (CONFIG_MPC8360) +#if defined(CONFIG_MPC8360) + u32 ddr_sec_clk; +#endif +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X) u32 qepmf; u32 qepdf; - u32 ddr_sec_clk; u32 qe_clk; u32 brg_clk; #endif @@ -139,12 +143,12 @@ int get_clocks(void) #endif } - spmf = ((im->reset.rcwl & RCWL_SPMF) >> RCWL_SPMF_SHIFT); + spmf = ((im->reset.rcwl & HRCWL_SPMF) >> HRCWL_SPMF_SHIFT); csb_clk = pci_sync_in * (1 + clkin_div) * spmf; sccr = im->clk.sccr; -#if defined(CONFIG_MPC8349) +#if defined(CONFIG_MPC834X) switch ((sccr & SCCR_TSEC1CM) >> SCCR_TSEC1CM_SHIFT) { case 0: tsec1_clk = 0; @@ -227,10 +231,12 @@ int get_clocks(void) return -9; } #endif -#if defined (CONFIG_MPC8360) +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X) i2c1_clk = csb_clk; #endif +#if !defined(CONFIG_MPC832X) i2c2_clk = csb_clk; /* i2c-2 clk is equal to csb clk */ +#endif switch ((sccr & SCCR_ENCCM) >> SCCR_ENCCM_SHIFT) { case 0: @@ -249,12 +255,9 @@ int get_clocks(void) /* unkown SCCR_ENCCM value */ return -6; } -#if defined(CONFIG_MPC8349) || defined(CONFIG_MPC8360) + lbiu_clk = csb_clk * - (1 + ((im->reset.rcwl & RCWL_LBIUCM) >> RCWL_LBIUCM_SHIFT)); -#else -#error Unknown MPC83xx chip -#endif + (1 + ((im->reset.rcwl & HRCWL_LBIUCM) >> HRCWL_LBIUCM_SHIFT)); lcrr = (im->lbus.lcrr & LCRR_CLKDIV) >> LCRR_CLKDIV_SHIFT; switch (lcrr) { case 2: @@ -266,16 +269,13 @@ int get_clocks(void) /* unknown lcrr */ return -10; } -#if defined(CONFIG_MPC8349) || defined(CONFIG_MPC8360) + ddr_clk = csb_clk * - (1 + ((im->reset.rcwl & RCWL_DDRCM) >> RCWL_DDRCM_SHIFT)); - corepll = (im->reset.rcwl & RCWL_COREPLL) >> RCWL_COREPLL_SHIFT; -#if defined (CONFIG_MPC8360) + (1 + ((im->reset.rcwl & HRCWL_DDRCM) >> HRCWL_DDRCM_SHIFT)); + corepll = (im->reset.rcwl & HRCWL_COREPLL) >> HRCWL_COREPLL_SHIFT; +#if defined(CONFIG_MPC8360) ddr_sec_clk = csb_clk * (1 + - ((im->reset.rcwl & RCWL_LBIUCM) >> RCWL_LBIUCM_SHIFT)); -#endif -#else -#error Unknown MPC83xx chip + ((im->reset.rcwl & HRCWL_LBIUCM) >> HRCWL_LBIUCM_SHIFT)); #endif corecnf_tab_index = ((corepll & 0x1F) << 2) | ((corepll & 0x60) >> 5); @@ -306,15 +306,15 @@ int get_clocks(void) return -12; } -#if defined (CONFIG_MPC8360) - qepmf = (im->reset.rcwl & RCWL_CEPMF) >> RCWL_CEPMF_SHIFT; - qepdf = (im->reset.rcwl & RCWL_CEPDF) >> RCWL_CEPDF_SHIFT; +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X) + qepmf = (im->reset.rcwl & HRCWL_CEPMF) >> HRCWL_CEPMF_SHIFT; + qepdf = (im->reset.rcwl & HRCWL_CEPDF) >> HRCWL_CEPDF_SHIFT; qe_clk = (pci_sync_in * qepmf) / (1 + qepdf); brg_clk = qe_clk / 2; #endif gd->csb_clk = csb_clk; -#if defined(CONFIG_MPC8349) +#if defined(CONFIG_MPC834X) gd->tsec1_clk = tsec1_clk; gd->tsec2_clk = tsec2_clk; gd->usbmph_clk = usbmph_clk; @@ -322,13 +322,17 @@ int get_clocks(void) #endif gd->core_clk = core_clk; gd->i2c1_clk = i2c1_clk; +#if !defined(CONFIG_MPC832X) gd->i2c2_clk = i2c2_clk; +#endif gd->enc_clk = enc_clk; gd->lbiu_clk = lbiu_clk; gd->lclk_clk = lclk_clk; gd->ddr_clk = ddr_clk; -#if defined (CONFIG_MPC8360) +#if defined(CONFIG_MPC8360) gd->ddr_sec_clk = ddr_sec_clk; +#endif +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X) gd->qe_clk = qe_clk; gd->brg_clk = brg_clk; #endif @@ -352,19 +356,22 @@ int print_clock_conf(void) printf("Clock configuration:\n"); printf(" Coherent System Bus: %4d MHz\n", gd->csb_clk / 1000000); printf(" Core: %4d MHz\n", gd->core_clk / 1000000); -#if defined (CONFIG_MPC8360) +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X) printf(" QE: %4d MHz\n", gd->qe_clk / 1000000); + printf(" BRG: %4d MHz\n", gd->brg_clk / 1000000); #endif printf(" Local Bus Controller:%4d MHz\n", gd->lbiu_clk / 1000000); printf(" Local Bus: %4d MHz\n", gd->lclk_clk / 1000000); printf(" DDR: %4d MHz\n", gd->ddr_clk / 1000000); -#if defined (CONFIG_MPC8360) +#if defined(CONFIG_MPC8360) printf(" DDR Secondary: %4d MHz\n", gd->ddr_sec_clk / 1000000); #endif printf(" SEC: %4d MHz\n", gd->enc_clk / 1000000); printf(" I2C1: %4d MHz\n", gd->i2c1_clk / 1000000); +#if !defined(CONFIG_MPC832X) printf(" I2C2: %4d MHz\n", gd->i2c2_clk / 1000000); -#if defined(CONFIG_MPC8349) +#endif +#if defined(CONFIG_MPC834X) printf(" TSEC1: %4d MHz\n", gd->tsec1_clk / 1000000); printf(" TSEC2: %4d MHz\n", gd->tsec2_clk / 1000000); printf(" USB MPH: %4d MHz\n", gd->usbmph_clk / 1000000); diff --git a/cpu/mpc83xx/start.S b/cpu/mpc83xx/start.S index 0f27bb6..6ee9ec9 100644 --- a/cpu/mpc83xx/start.S +++ b/cpu/mpc83xx/start.S @@ -77,19 +77,11 @@ END_GOT /* - * Version string - must be in data segment because MPC83xx uses the - * first 256 bytes for the Hard Reset Configuration Word table (see - * below). Similarly, can't have the U-Boot Magic Number as the first - * thing in the image - don't know how this will affect the image tools, - * but I guess I'll find out soon. + * The Hard Reset Configuration Word (HRCW) table is in the first 64 + * (0x40) bytes of flash. It has 8 bytes, but each byte is repeated 8 + * times so the processor can fetch it out of flash whether the flash + * is 8, 16, 32, or 64 bits wide (hardware trickery). */ - .data - .globl version_string -version_string: - .ascii U_BOOT_VERSION - .ascii " (", __DATE__, " - ", __TIME__, ")" - .ascii " ", CONFIG_IDENT_STRING, "\0" - .text #define _HRCW_TABLE_ENTRY(w) \ .fill 8,1,(((w)>>24)&0xff); \ @@ -100,6 +92,18 @@ version_string: _HRCW_TABLE_ENTRY(CFG_HRCW_LOW) _HRCW_TABLE_ENTRY(CFG_HRCW_HIGH) +/* + * Magic number and version string - put it after the HRCW since it + * cannot be first in flash like it is in many other processors. + */ + .long 0x27051956 /* U-Boot Magic Number */ + + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", __DATE__, " - ", __TIME__, ")" + .ascii " ", CONFIG_IDENT_STRING, "\0" + #ifndef CONFIG_DEFAULT_IMMR #error CONFIG_DEFAULT_IMMR must be defined |