| /* |
| * (C) Copyright 2001-2003 |
| * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| * |
| * Modified during 2001 by |
| * Advanced Communications Technologies (Australia) Pty. Ltd. |
| * Howard Walker, Tuong Vu-Dinh |
| * |
| * (C) Copyright 2001, Stuart Hughes, Lineo Inc, stuarth@lineo.com |
| * Added support for the 16M dram simm on the 8260ads boards |
| * |
| * (C) Copyright 2003-2004 Arabella Software Ltd. |
| * Yuli Barcohen <yuli@arabellasw.com> |
| * Added support for SDRAM DIMMs SPD EEPROM, MII, Ethernet PHY init. |
| * |
| * Copyright (c) 2005 MontaVista Software, Inc. |
| * Vitaly Bordug <vbordug@ru.mvista.com> |
| * Added support for PCI. |
| * |
| * 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 <ioports.h> |
| #include <mpc8260.h> |
| #include <asm/m8260_pci.h> |
| #include <i2c.h> |
| #include <spd.h> |
| #include <miiphy.h> |
| #ifdef CONFIG_PCI |
| #include <pci.h> |
| #endif |
| |
| /* |
| * I/O Port configuration table |
| * |
| * if conf is 1, then that port pin will be configured at boot time |
| * according to the five values podr/pdir/ppar/psor/pdat for that entry |
| */ |
| |
| #define CFG_FCC1 (CONFIG_ETHER_INDEX == 1) |
| #define CFG_FCC2 (CONFIG_ETHER_INDEX == 2) |
| #define CFG_FCC3 (CONFIG_ETHER_INDEX == 3) |
| |
| const iop_conf_t iop_conf_tab[4][32] = { |
| |
| /* Port A configuration */ |
| { /* conf ppar psor pdir podr pdat */ |
| /* PA31 */ { CFG_FCC1, 1, 1, 0, 0, 0 }, /* FCC1 MII COL */ |
| /* PA30 */ { CFG_FCC1, 1, 1, 0, 0, 0 }, /* FCC1 MII CRS */ |
| /* PA29 */ { CFG_FCC1, 1, 1, 1, 0, 0 }, /* FCC1 MII TX_ER */ |
| /* PA28 */ { CFG_FCC1, 1, 1, 1, 0, 0 }, /* FCC1 MII TX_EN */ |
| /* PA27 */ { CFG_FCC1, 1, 1, 0, 0, 0 }, /* FCC1 MII RX_DV */ |
| /* PA26 */ { CFG_FCC1, 1, 1, 0, 0, 0 }, /* FCC1 MII RX_ER */ |
| /* PA25 */ { 0, 0, 0, 0, 0, 0 }, /* PA25 */ |
| /* PA24 */ { 0, 0, 0, 0, 0, 0 }, /* PA24 */ |
| /* PA23 */ { 0, 0, 0, 0, 0, 0 }, /* PA23 */ |
| /* PA22 */ { 0, 0, 0, 0, 0, 0 }, /* PA22 */ |
| /* PA21 */ { CFG_FCC1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[3] */ |
| /* PA20 */ { CFG_FCC1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[2] */ |
| /* PA19 */ { CFG_FCC1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[1] */ |
| /* PA18 */ { CFG_FCC1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[0] */ |
| /* PA17 */ { CFG_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[0] */ |
| /* PA16 */ { CFG_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[1] */ |
| /* PA15 */ { CFG_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[2] */ |
| /* PA14 */ { CFG_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[3] */ |
| /* PA13 */ { 0, 0, 0, 0, 0, 0 }, /* PA13 */ |
| /* PA12 */ { 0, 0, 0, 0, 0, 0 }, /* PA12 */ |
| /* PA11 */ { 0, 0, 0, 0, 0, 0 }, /* PA11 */ |
| /* PA10 */ { 0, 0, 0, 0, 0, 0 }, /* PA10 */ |
| /* PA9 */ { 0, 0, 0, 0, 0, 0 }, /* PA9 */ |
| /* PA8 */ { 0, 0, 0, 0, 0, 0 }, /* PA8 */ |
| /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */ |
| /* PA6 */ { 0, 0, 0, 0, 0, 0 }, /* PA6 */ |
| /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */ |
| /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */ |
| /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */ |
| /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */ |
| /* PA1 */ { 0, 0, 0, 0, 0, 0 }, /* PA1 */ |
| /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */ |
| }, |
| |
| /* Port B configuration */ |
| { /* conf ppar psor pdir podr pdat */ |
| /* PB31 */ { CFG_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */ |
| /* PB30 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */ |
| /* PB29 */ { CFG_FCC2, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */ |
| /* PB28 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */ |
| /* PB27 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */ |
| /* PB26 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */ |
| /* PB25 */ { CFG_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */ |
| /* PB24 */ { CFG_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */ |
| /* PB23 */ { CFG_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */ |
| /* PB22 */ { CFG_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */ |
| /* PB21 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */ |
| /* PB20 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */ |
| /* PB19 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */ |
| /* PB18 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */ |
| /* PB17 */ { CFG_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RX_DIV */ |
| /* PB16 */ { CFG_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RX_ERR */ |
| /* PB15 */ { CFG_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TX_ERR */ |
| /* PB14 */ { CFG_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TX_EN */ |
| /* PB13 */ { CFG_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:COL */ |
| /* PB12 */ { CFG_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:CRS */ |
| /* PB11 */ { CFG_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ |
| /* PB10 */ { CFG_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ |
| /* PB9 */ { CFG_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ |
| /* PB8 */ { CFG_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ |
| /* PB7 */ { CFG_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ |
| /* PB6 */ { CFG_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ |
| /* PB5 */ { CFG_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ |
| /* PB4 */ { CFG_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ |
| /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ |
| /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ |
| /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ |
| /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */ |
| }, |
| |
| /* Port C */ |
| { /* conf ppar psor pdir podr pdat */ |
| /* PC31 */ { 0, 0, 0, 0, 0, 0 }, /* PC31 */ |
| /* PC30 */ { 0, 0, 0, 0, 0, 0 }, /* PC30 */ |
| /* PC29 */ { 0, 0, 0, 0, 0, 0 }, /* PC29 */ |
| /* PC28 */ { 0, 0, 0, 0, 0, 0 }, /* PC28 */ |
| /* PC27 */ { 0, 0, 0, 0, 0, 0 }, /* PC27 */ |
| /* PC26 */ { 0, 0, 0, 0, 0, 0 }, /* PC26 */ |
| /* PC25 */ { 0, 0, 0, 0, 0, 0 }, /* PC25 */ |
| /* PC24 */ { 0, 0, 0, 0, 0, 0 }, /* PC24 */ |
| /* PC23 */ { 0, 0, 0, 0, 0, 0 }, /* PC23 */ |
| /* PC22 */ { CFG_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII Tx Clock (CLK10) */ |
| /* PC21 */ { CFG_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII Rx Clock (CLK11) */ |
| /* PC20 */ { 0, 0, 0, 0, 0, 0 }, /* PC20 */ |
| #if CONFIG_ADSTYPE == CFG_8272ADS |
| /* PC19 */ { 1, 0, 0, 1, 0, 0 }, /* FETHMDC */ |
| /* PC18 */ { 1, 0, 0, 0, 0, 0 }, /* FETHMDIO */ |
| /* PC17 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII Rx Clock (CLK15) */ |
| /* PC16 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII Tx Clock (CLK16) */ |
| #else |
| /* PC19 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII Rx Clock (CLK13) */ |
| /* PC18 */ { CFG_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII Tx Clock (CLK14) */ |
| /* PC17 */ { 0, 0, 0, 0, 0, 0 }, /* PC17 */ |
| /* PC16 */ { 0, 0, 0, 0, 0, 0 }, /* PC16 */ |
| #endif /* CONFIG_ADSTYPE == CFG_8272ADS */ |
| /* PC15 */ { 0, 0, 0, 0, 0, 0 }, /* PC15 */ |
| /* PC14 */ { 0, 0, 0, 0, 0, 0 }, /* PC14 */ |
| /* PC13 */ { 0, 0, 0, 0, 0, 0 }, /* PC13 */ |
| /* PC12 */ { 0, 0, 0, 0, 0, 0 }, /* PC12 */ |
| /* PC11 */ { 0, 0, 0, 0, 0, 0 }, /* PC11 */ |
| #if CONFIG_ADSTYPE == CFG_8272ADS |
| /* PC10 */ { 0, 0, 0, 0, 0, 0 }, /* PC10 */ |
| /* PC9 */ { 0, 0, 0, 0, 0, 0 }, /* PC9 */ |
| #else |
| /* PC10 */ { 1, 0, 0, 1, 0, 0 }, /* FETHMDC */ |
| /* PC9 */ { 1, 0, 0, 0, 0, 0 }, /* FETHMDIO */ |
| #endif /* CONFIG_ADSTYPE == CFG_8272ADS */ |
| /* PC8 */ { 0, 0, 0, 0, 0, 0 }, /* PC8 */ |
| /* PC7 */ { 0, 0, 0, 0, 0, 0 }, /* PC7 */ |
| /* PC6 */ { 0, 0, 0, 0, 0, 0 }, /* PC6 */ |
| /* PC5 */ { 0, 0, 0, 0, 0, 0 }, /* PC5 */ |
| /* PC4 */ { 0, 0, 0, 0, 0, 0 }, /* PC4 */ |
| /* PC3 */ { 0, 0, 0, 0, 0, 0 }, /* PC3 */ |
| /* PC2 */ { 0, 0, 0, 0, 0, 0 }, /* PC2 */ |
| /* PC1 */ { 0, 0, 0, 0, 0, 0 }, /* PC1 */ |
| /* PC0 */ { 0, 0, 0, 0, 0, 0 }, /* PC0 */ |
| }, |
| |
| /* Port D */ |
| { /* conf ppar psor pdir podr pdat */ |
| /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 UART RxD */ |
| /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 UART TxD */ |
| /* PD29 */ { 0, 0, 0, 0, 0, 0 }, /* PD29 */ |
| /* PD28 */ { 0, 1, 0, 0, 0, 0 }, /* PD28 */ |
| /* PD27 */ { 0, 1, 1, 1, 0, 0 }, /* PD27 */ |
| /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* PD26 */ |
| /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */ |
| /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */ |
| /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* PD23 */ |
| /* PD22 */ { 0, 0, 0, 1, 0, 0 }, /* PD22 */ |
| /* PD21 */ { 0, 0, 0, 1, 0, 0 }, /* PD21 */ |
| /* PD20 */ { 0, 0, 0, 1, 0, 0 }, /* PD20 */ |
| /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */ |
| /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD18 */ |
| /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */ |
| /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXPRTY */ |
| /* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */ |
| /* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */ |
| /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */ |
| /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */ |
| /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */ |
| /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */ |
| /* PD9 */ { 0, 1, 0, 1, 0, 0 }, /* SMC1 TXD */ |
| /* PD8 */ { 0, 1, 0, 0, 0, 0 }, /* SMC1 RXD */ |
| /* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */ |
| /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */ |
| /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */ |
| /* PD4 */ { 0, 0, 0, 1, 0, 1 }, /* PD4 */ |
| /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ |
| /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ |
| /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ |
| /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */ |
| } |
| }; |
| |
| void reset_phy (void) |
| { |
| vu_long *bcsr = (vu_long *)CFG_BCSR; |
| |
| /* Reset the PHY */ |
| #if CFG_PHY_ADDR == 0 |
| bcsr[1] &= ~(FETHIEN1 | FETH1_RST); |
| udelay(2); |
| bcsr[1] |= FETH1_RST; |
| #else |
| bcsr[3] &= ~(FETHIEN2 | FETH2_RST); |
| udelay(2); |
| bcsr[3] |= FETH2_RST; |
| #endif /* CFG_PHY_ADDR == 0 */ |
| udelay(1000); |
| #ifdef CONFIG_MII |
| #if CONFIG_ADSTYPE >= CFG_PQ2FADS |
| /* |
| * Do not bypass Rx/Tx (de)scrambler (fix configuration error) |
| * Enable autonegotiation. |
| */ |
| bb_miiphy_write(NULL, CFG_PHY_ADDR, 16, 0x610); |
| bb_miiphy_write(NULL, CFG_PHY_ADDR, PHY_BMCR, |
| PHY_BMCR_AUTON | PHY_BMCR_RST_NEG); |
| #else |
| /* |
| * Ethernet PHY is configured (by means of configuration pins) |
| * to work at 10Mb/s only. We reconfigure it using MII |
| * to advertise all capabilities, including 100Mb/s, and |
| * restart autonegotiation. |
| */ |
| |
| /* Advertise all capabilities */ |
| bb_miiphy_write(NULL, CFG_PHY_ADDR, PHY_ANAR, 0x01E1); |
| |
| /* Do not bypass Rx/Tx (de)scrambler */ |
| bb_miiphy_write(NULL, CFG_PHY_ADDR, PHY_DCR, 0x0000); |
| |
| bb_miiphy_write(NULL, CFG_PHY_ADDR, PHY_BMCR, |
| PHY_BMCR_AUTON | PHY_BMCR_RST_NEG); |
| #endif /* CONFIG_ADSTYPE == CFG_PQ2FADS */ |
| #endif /* CONFIG_MII */ |
| } |
| |
| #ifdef CONFIG_PCI |
| typedef struct pci_ic_s { |
| unsigned long pci_int_stat; |
| unsigned long pci_int_mask; |
| }pci_ic_t; |
| #endif |
| |
| int board_early_init_f (void) |
| { |
| vu_long *bcsr = (vu_long *)CFG_BCSR; |
| |
| #ifdef CONFIG_PCI |
| volatile pci_ic_t* pci_ic = (pci_ic_t *) CFG_PCI_INT; |
| |
| /* mask alll the PCI interrupts */ |
| pci_ic->pci_int_mask |= 0xfff00000; |
| #endif |
| #if (CONFIG_CONS_INDEX == 1) || (CONFIG_KGDB_INDEX == 1) |
| bcsr[1] &= ~RS232EN_1; |
| #endif |
| #if (CONFIG_CONS_INDEX > 1) || (CONFIG_KGDB_INDEX > 1) |
| bcsr[1] &= ~RS232EN_2; |
| #endif |
| |
| #if CONFIG_ADSTYPE != CFG_8260ADS /* PCI mode can be selected */ |
| #if CONFIG_ADSTYPE == CFG_PQ2FADS |
| if ((bcsr[3] & BCSR_PCI_MODE) == 0) /* PCI mode selected by JP9 */ |
| #endif /* CONFIG_ADSTYPE == CFG_PQ2FADS */ |
| { |
| volatile immap_t *immap = (immap_t *) CFG_IMMR; |
| |
| immap->im_clkrst.car_sccr |= M826X_SCCR_PCI_MODE_EN; |
| immap->im_siu_conf.sc_siumcr = |
| (immap->im_siu_conf.sc_siumcr & ~SIUMCR_LBPC11) |
| | SIUMCR_LBPC01; |
| } |
| #endif /* CONFIG_ADSTYPE != CFG_8260ADS */ |
| |
| return 0; |
| } |
| |
| #define ns2clk(ns) (ns / (1000000000 / CONFIG_8260_CLKIN) + 1) |
| |
| long int initdram (int board_type) |
| { |
| #if CONFIG_ADSTYPE == CFG_PQ2FADS |
| long int msize = 32; |
| #elif CONFIG_ADSTYPE == CFG_8272ADS |
| long int msize = 64; |
| #else |
| long int msize = 16; |
| #endif |
| |
| #ifndef CFG_RAMBOOT |
| volatile immap_t *immap = (immap_t *) CFG_IMMR; |
| volatile memctl8260_t *memctl = &immap->im_memctl; |
| volatile uchar *ramaddr, c = 0xff; |
| uint or; |
| uint psdmr; |
| uint psrt; |
| |
| int i; |
| |
| immap->im_siu_conf.sc_ppc_acr = 0x00000002; |
| immap->im_siu_conf.sc_ppc_alrh = 0x01267893; |
| immap->im_siu_conf.sc_tescr1 = 0x00004000; |
| |
| memctl->memc_mptpr = CFG_MPTPR; |
| #ifdef CFG_LSDRAM_BASE |
| /* |
| Initialise local bus SDRAM only if the pins |
| are configured as local bus pins and not as PCI. |
| The configuration is determined by the HRCW. |
| */ |
| if ((immap->im_siu_conf.sc_siumcr & SIUMCR_LBPC11) == SIUMCR_LBPC00) { |
| memctl->memc_lsrt = CFG_LSRT; |
| #if CONFIG_ADSTYPE == CFG_PQ2FADS /* CS3 */ |
| memctl->memc_or3 = 0xFF803280; |
| memctl->memc_br3 = CFG_LSDRAM_BASE | 0x00001861; |
| #else /* CS4 */ |
| memctl->memc_or4 = 0xFFC01480; |
| memctl->memc_br4 = CFG_LSDRAM_BASE | 0x00001861; |
| #endif /* CONFIG_ADSTYPE == CFG_PQ2FADS */ |
| memctl->memc_lsdmr = CFG_LSDMR | 0x28000000; |
| ramaddr = (uchar *) CFG_LSDRAM_BASE; |
| *ramaddr = c; |
| memctl->memc_lsdmr = CFG_LSDMR | 0x08000000; |
| for (i = 0; i < 8; i++) |
| *ramaddr = c; |
| memctl->memc_lsdmr = CFG_LSDMR | 0x18000000; |
| *ramaddr = c; |
| memctl->memc_lsdmr = CFG_LSDMR | 0x40000000; |
| } |
| #endif /* CFG_LSDRAM_BASE */ |
| |
| /* Init 60x bus SDRAM */ |
| #ifdef CONFIG_SPD_EEPROM |
| { |
| spd_eeprom_t spd; |
| uint pbi, bsel, rowst, lsb, tmp; |
| |
| i2c_read (CONFIG_SPD_ADDR, 0, 1, (uchar *) & spd, sizeof (spd)); |
| |
| /* Bank-based interleaving is not supported for physical bank |
| sizes greater than 128MB which is encoded as 0x20 in SPD |
| */ |
| pbi = (spd.row_dens > 32) ? 1 : CONFIG_SDRAM_PBI; |
| msize = spd.nrows * (4 * spd.row_dens); /* Mixed size not supported */ |
| or = ~(msize - 1) << 20; /* SDAM */ |
| switch (spd.nbanks) { /* BPD */ |
| case 2: |
| bsel = 1; |
| break; |
| case 4: |
| bsel = 2; |
| or |= 0x00002000; |
| break; |
| case 8: |
| bsel = 3; |
| or |= 0x00004000; |
| break; |
| } |
| lsb = 3; /* For 64-bit port, lsb is 3 bits */ |
| |
| if (pbi) { /* Bus partition depends on interleaving */ |
| rowst = 32 - (spd.nrow_addr + spd.ncol_addr + bsel + lsb); |
| or |= (rowst << 9); /* ROWST */ |
| } else { |
| rowst = 32 - (spd.nrow_addr + spd.ncol_addr + lsb); |
| or |= ((rowst * 2 - 12) << 9); /* ROWST */ |
| } |
| or |= ((spd.nrow_addr - 9) << 6); /* NUMR */ |
| |
| psdmr = (pbi << 31); /* PBI */ |
| /* Bus multiplexing parameters */ |
| tmp = 32 - (lsb + spd.nrow_addr); /* Tables 10-19 and 10-20 */ |
| psdmr |= ((tmp - (rowst - 5) - 13) << 24); /* SDAM */ |
| psdmr |= ((tmp - 3 - 12) << 21); /* BSMA */ |
| |
| tmp = (31 - lsb - 10) - tmp; |
| /* Pin connected to SDA10 is (31 - lsb - 10). |
| rowst is multiplexed over (32 - (lsb + spd.nrow_addr)), |
| so (rowst + tmp) alternates with AP. |
| */ |
| if (pbi) /* Table 10-7 */ |
| psdmr |= ((10 - (rowst + tmp)) << 18); /* SDA10 */ |
| else |
| psdmr |= ((12 - (rowst + tmp)) << 18); /* SDA10 */ |
| |
| /* SDRAM device-specific parameters */ |
| tmp = ns2clk (70); /* Refresh recovery is not in SPD, so assume 70ns */ |
| switch (tmp) { /* RFRC */ |
| case 1: |
| case 2: |
| psdmr |= (1 << 15); |
| break; |
| case 3: |
| case 4: |
| case 5: |
| case 6: |
| case 7: |
| case 8: |
| psdmr |= ((tmp - 2) << 15); |
| break; |
| default: |
| psdmr |= (7 << 15); |
| } |
| psdmr |= (ns2clk (spd.trp) % 8 << 12); /* PRETOACT */ |
| psdmr |= (ns2clk (spd.trcd) % 8 << 9); /* ACTTORW */ |
| /* BL=0 because for 64-bit SDRAM burst length must be 4 */ |
| /* LDOTOPRE ??? */ |
| for (i = 0, tmp = spd.write_lat; (i < 4) && ((tmp & 1) == 0); i++) |
| tmp >>= 1; |
| switch (i) { /* WRC */ |
| case 0: |
| case 1: |
| psdmr |= (1 << 4); |
| break; |
| case 2: |
| case 3: |
| psdmr |= (i << 4); |
| break; |
| } |
| /* EAMUX=0 - no external address multiplexing */ |
| /* BUFCMD=0 - no external buffers */ |
| for (i = 1, tmp = spd.cas_lat; (i < 3) && ((tmp & 1) == 0); i++) |
| tmp >>= 1; |
| psdmr |= i; /* CL */ |
| |
| switch (spd.refresh & 0x7F) { |
| case 1: |
| tmp = 3900; |
| break; |
| case 2: |
| tmp = 7800; |
| break; |
| case 3: |
| tmp = 31300; |
| break; |
| case 4: |
| tmp = 62500; |
| break; |
| case 5: |
| tmp = 125000; |
| break; |
| default: |
| tmp = 15625; |
| } |
| psrt = tmp / (1000000000 / CONFIG_8260_CLKIN * |
| ((memctl->memc_mptpr >> 8) + 1)) - 1; |
| #ifdef SPD_DEBUG |
| printf ("\nDIMM type: %-18.18s\n", spd.mpart); |
| printf ("SPD size: %d\n", spd.info_size); |
| printf ("EEPROM size: %d\n", 1 << spd.chip_size); |
| printf ("Memory type: %d\n", spd.mem_type); |
| printf ("Row addr: %d\n", spd.nrow_addr); |
| printf ("Column addr: %d\n", spd.ncol_addr); |
| printf ("# of rows: %d\n", spd.nrows); |
| printf ("Row density: %d\n", spd.row_dens); |
| printf ("# of banks: %d\n", spd.nbanks); |
| printf ("Data width: %d\n", |
| 256 * spd.dataw_msb + spd.dataw_lsb); |
| printf ("Chip width: %d\n", spd.primw); |
| printf ("Refresh rate: %02X\n", spd.refresh); |
| printf ("CAS latencies: %02X\n", spd.cas_lat); |
| printf ("Write latencies: %02X\n", spd.write_lat); |
| printf ("tRP: %d\n", spd.trp); |
| printf ("tRCD: %d\n", spd.trcd); |
| |
| printf ("OR=%X, PSDMR=%08X, PSRT=%0X\n", or, psdmr, psrt); |
| #endif /* SPD_DEBUG */ |
| } |
| #else /* !CONFIG_SPD_EEPROM */ |
| or = CFG_OR2; |
| psdmr = CFG_PSDMR; |
| psrt = CFG_PSRT; |
| #endif /* CONFIG_SPD_EEPROM */ |
| memctl->memc_psrt = psrt; |
| memctl->memc_or2 = or; |
| memctl->memc_br2 = CFG_SDRAM_BASE | 0x00000041; |
| ramaddr = (uchar *) CFG_SDRAM_BASE; |
| memctl->memc_psdmr = psdmr | 0x28000000; /* Precharge all banks */ |
| *ramaddr = c; |
| memctl->memc_psdmr = psdmr | 0x08000000; /* CBR refresh */ |
| for (i = 0; i < 8; i++) |
| *ramaddr = c; |
| |
| memctl->memc_psdmr = psdmr | 0x18000000; /* Mode Register write */ |
| *ramaddr = c; |
| memctl->memc_psdmr = psdmr | 0x40000000; /* Refresh enable */ |
| *ramaddr = c; |
| #endif /* CFG_RAMBOOT */ |
| |
| /* return total 60x bus SDRAM size */ |
| return (msize * 1024 * 1024); |
| } |
| |
| int checkboard (void) |
| { |
| #if CONFIG_ADSTYPE == CFG_8260ADS |
| puts ("Board: Motorola MPC8260ADS\n"); |
| #elif CONFIG_ADSTYPE == CFG_8266ADS |
| puts ("Board: Motorola MPC8266ADS\n"); |
| #elif CONFIG_ADSTYPE == CFG_PQ2FADS |
| puts ("Board: Motorola PQ2FADS-ZU\n"); |
| #elif CONFIG_ADSTYPE == CFG_8272ADS |
| puts ("Board: Motorola MPC8272ADS\n"); |
| #else |
| puts ("Board: unknown\n"); |
| #endif |
| return 0; |
| } |
| |
| #ifdef CONFIG_PCI |
| struct pci_controller hose; |
| |
| extern void pci_mpc8250_init(struct pci_controller *); |
| |
| void pci_init_board(void) |
| { |
| pci_mpc8250_init(&hose); |
| } |
| #endif |
