diff options
Diffstat (limited to 'board/freescale/mpc8260ads/mpc8260ads.c')
| -rw-r--r-- | board/freescale/mpc8260ads/mpc8260ads.c | 560 |
1 files changed, 560 insertions, 0 deletions
diff --git a/board/freescale/mpc8260ads/mpc8260ads.c b/board/freescale/mpc8260ads/mpc8260ads.c new file mode 100644 index 0000000..8f617ca --- /dev/null +++ b/board/freescale/mpc8260ads/mpc8260ads.c @@ -0,0 +1,560 @@ +/* + * (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 +#ifdef CONFIG_OF_LIBFDT +#include <libfdt.h> +#include <fdt_support.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 CONFIG_SYS_FCC1 (CONFIG_ETHER_INDEX == 1) +#define CONFIG_SYS_FCC2 (CONFIG_ETHER_INDEX == 2) +#define CONFIG_SYS_FCC3 (CONFIG_ETHER_INDEX == 3) + +const iop_conf_t iop_conf_tab[4][32] = { + + /* Port A configuration */ + { /* conf ppar psor pdir podr pdat */ + /* PA31 */ { CONFIG_SYS_FCC1, 1, 1, 0, 0, 0 }, /* FCC1 MII COL */ + /* PA30 */ { CONFIG_SYS_FCC1, 1, 1, 0, 0, 0 }, /* FCC1 MII CRS */ + /* PA29 */ { CONFIG_SYS_FCC1, 1, 1, 1, 0, 0 }, /* FCC1 MII TX_ER */ + /* PA28 */ { CONFIG_SYS_FCC1, 1, 1, 1, 0, 0 }, /* FCC1 MII TX_EN */ + /* PA27 */ { CONFIG_SYS_FCC1, 1, 1, 0, 0, 0 }, /* FCC1 MII RX_DV */ + /* PA26 */ { CONFIG_SYS_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 */ { CONFIG_SYS_FCC1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[3] */ + /* PA20 */ { CONFIG_SYS_FCC1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[2] */ + /* PA19 */ { CONFIG_SYS_FCC1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[1] */ + /* PA18 */ { CONFIG_SYS_FCC1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[0] */ + /* PA17 */ { CONFIG_SYS_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[0] */ + /* PA16 */ { CONFIG_SYS_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[1] */ + /* PA15 */ { CONFIG_SYS_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[2] */ + /* PA14 */ { CONFIG_SYS_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 */ { CONFIG_SYS_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */ + /* PB30 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */ + /* PB29 */ { CONFIG_SYS_FCC2, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */ + /* PB28 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */ + /* PB27 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */ + /* PB26 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */ + /* PB25 */ { CONFIG_SYS_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */ + /* PB24 */ { CONFIG_SYS_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */ + /* PB23 */ { CONFIG_SYS_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */ + /* PB22 */ { CONFIG_SYS_FCC2, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */ + /* PB21 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */ + /* PB20 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */ + /* PB19 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */ + /* PB18 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */ + /* PB17 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RX_DIV */ + /* PB16 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RX_ERR */ + /* PB15 */ { CONFIG_SYS_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TX_ERR */ + /* PB14 */ { CONFIG_SYS_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TX_EN */ + /* PB13 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:COL */ + /* PB12 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:CRS */ + /* PB11 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ + /* PB10 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ + /* PB9 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ + /* PB8 */ { CONFIG_SYS_FCC3, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ + /* PB7 */ { CONFIG_SYS_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ + /* PB6 */ { CONFIG_SYS_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ + /* PB5 */ { CONFIG_SYS_FCC3, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ + /* PB4 */ { CONFIG_SYS_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 */ { CONFIG_SYS_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII Tx Clock (CLK10) */ + /* PC21 */ { CONFIG_SYS_FCC1, 1, 0, 0, 0, 0 }, /* FCC1 MII Rx Clock (CLK11) */ + /* PC20 */ { 0, 0, 0, 0, 0, 0 }, /* PC20 */ +#if CONFIG_ADSTYPE == CONFIG_SYS_8272ADS + /* PC19 */ { 1, 0, 0, 1, 0, 0 }, /* FETHMDC */ + /* PC18 */ { 1, 0, 0, 0, 0, 0 }, /* FETHMDIO */ + /* PC17 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII Rx Clock (CLK15) */ + /* PC16 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII Tx Clock (CLK16) */ +#else + /* PC19 */ { CONFIG_SYS_FCC2, 1, 0, 0, 0, 0 }, /* FCC2 MII Rx Clock (CLK13) */ + /* PC18 */ { CONFIG_SYS_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 == CONFIG_SYS_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 == CONFIG_SYS_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 == CONFIG_SYS_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 *)CONFIG_SYS_BCSR; + + /* Reset the PHY */ +#if CONFIG_SYS_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 /* CONFIG_SYS_PHY_ADDR == 0 */ + udelay(1000); +#ifdef CONFIG_MII +#if CONFIG_ADSTYPE >= CONFIG_SYS_PQ2FADS + /* + * Do not bypass Rx/Tx (de)scrambler (fix configuration error) + * Enable autonegotiation. + */ + bb_miiphy_write(NULL, CONFIG_SYS_PHY_ADDR, 16, 0x610); + bb_miiphy_write(NULL, CONFIG_SYS_PHY_ADDR, MII_BMCR, + BMCR_ANENABLE | BMCR_ANRESTART); +#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, CONFIG_SYS_PHY_ADDR, MII_ADVERTISE, 0x01E1); + + /* Do not bypass Rx/Tx (de)scrambler */ + bb_miiphy_write(NULL, CONFIG_SYS_PHY_ADDR, MII_FCSCOUNTER, 0x0000); + + bb_miiphy_write(NULL, CONFIG_SYS_PHY_ADDR, MII_BMCR, + BMCR_ANENABLE | BMCR_ANRESTART); +#endif /* CONFIG_ADSTYPE == CONFIG_SYS_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 *)CONFIG_SYS_BCSR; + +#ifdef CONFIG_PCI + volatile pci_ic_t* pci_ic = (pci_ic_t *) CONFIG_SYS_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 != CONFIG_SYS_8260ADS /* PCI mode can be selected */ +#if CONFIG_ADSTYPE == CONFIG_SYS_PQ2FADS + if ((bcsr[3] & BCSR_PCI_MODE) == 0) /* PCI mode selected by JP9 */ +#endif /* CONFIG_ADSTYPE == CONFIG_SYS_PQ2FADS */ + { + volatile immap_t *immap = (immap_t *) CONFIG_SYS_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 != CONFIG_SYS_8260ADS */ + + return 0; +} + +#define ns2clk(ns) (ns / (1000000000 / CONFIG_8260_CLKIN) + 1) + +phys_size_t initdram (int board_type) +{ +#if CONFIG_ADSTYPE == CONFIG_SYS_PQ2FADS + long int msize = 32; +#elif CONFIG_ADSTYPE == CONFIG_SYS_8272ADS + long int msize = 64; +#else + long int msize = 16; +#endif + +#ifndef CONFIG_SYS_RAMBOOT + volatile immap_t *immap = (immap_t *) CONFIG_SYS_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 = CONFIG_SYS_MPTPR; +#ifdef CONFIG_SYS_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 = CONFIG_SYS_LSRT; +#if CONFIG_ADSTYPE == CONFIG_SYS_PQ2FADS /* CS3 */ + memctl->memc_or3 = 0xFF803280; + memctl->memc_br3 = CONFIG_SYS_LSDRAM_BASE | 0x00001861; +#else /* CS4 */ + memctl->memc_or4 = 0xFFC01480; + memctl->memc_br4 = CONFIG_SYS_LSDRAM_BASE | 0x00001861; +#endif /* CONFIG_ADSTYPE == CONFIG_SYS_PQ2FADS */ + memctl->memc_lsdmr = CONFIG_SYS_LSDMR | 0x28000000; + ramaddr = (uchar *) CONFIG_SYS_LSDRAM_BASE; + *ramaddr = c; + memctl->memc_lsdmr = CONFIG_SYS_LSDMR | 0x08000000; + for (i = 0; i < 8; i++) + *ramaddr = c; + memctl->memc_lsdmr = CONFIG_SYS_LSDMR | 0x18000000; + *ramaddr = c; + memctl->memc_lsdmr = CONFIG_SYS_LSDMR | 0x40000000; + } +#endif /* CONFIG_SYS_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 = CONFIG_SYS_OR2; + psdmr = CONFIG_SYS_PSDMR; + psrt = CONFIG_SYS_PSRT; +#endif /* CONFIG_SPD_EEPROM */ + memctl->memc_psrt = psrt; + memctl->memc_or2 = or; + memctl->memc_br2 = CONFIG_SYS_SDRAM_BASE | 0x00000041; + ramaddr = (uchar *) CONFIG_SYS_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 /* CONFIG_SYS_RAMBOOT */ + + /* return total 60x bus SDRAM size */ + return (msize * 1024 * 1024); +} + +int checkboard (void) +{ +#if CONFIG_ADSTYPE == CONFIG_SYS_8260ADS + puts ("Board: Motorola MPC8260ADS\n"); +#elif CONFIG_ADSTYPE == CONFIG_SYS_8266ADS + puts ("Board: Motorola MPC8266ADS\n"); +#elif CONFIG_ADSTYPE == CONFIG_SYS_PQ2FADS + puts ("Board: Motorola PQ2FADS-ZU\n"); +#elif CONFIG_ADSTYPE == CONFIG_SYS_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 + +#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) +void ft_board_setup(void *blob, bd_t *bd) +{ + ft_cpu_setup(blob, bd); +#ifdef CONFIG_PCI + ft_pci_setup(blob, bd); +#endif +} +#endif |
