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/*
* (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 Arabella Software Ltd.
* Yuli Barcohen <yuli@arabellasw.com>
* Added support for SDRAM DIMMs SPD EEPROM, MII, Ethernet PHY init.
*
* 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 <i2c.h>
#include <spd.h>
/*
* 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
*/
const iop_conf_t iop_conf_tab[4][32] = {
/* Port A configuration */
{ /* conf ppar psor pdir podr pdat */
/* PA31 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxENB */
/* PA30 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 TxClav */
/* PA29 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxSOC */
/* PA28 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 RxENB */
/* PA27 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxSOC */
/* PA26 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxClav */
/* PA25 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[0] */
/* PA24 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[1] */
/* PA23 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[2] */
/* PA22 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[3] */
/* PA21 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[4] */
/* PA20 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[5] */
/* PA19 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[6] */
/* PA18 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[7] */
/* PA17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[7] */
/* PA16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[6] */
/* PA15 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[5] */
/* PA14 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[4] */
/* PA13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[3] */
/* PA12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[2] */
/* PA11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[1] */
/* PA10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[0] */
/* PA9 */ { 0, 1, 1, 1, 0, 0 }, /* FCC1 L1TXD */
/* PA8 */ { 0, 1, 1, 0, 0, 0 }, /* FCC1 L1RXD */
/* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */
/* PA6 */ { 1, 1, 1, 1, 0, 0 }, /* TDM A1 L1RSYNC */
/* 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 */ { 1, 0, 0, 0, 0, 0 }, /* FREERUN */
/* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */
},
/* Port B configuration */
{ /* conf ppar psor pdir podr pdat */
/* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */
/* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */
/* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */
/* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */
/* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */
/* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */
/* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */
/* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */
/* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */
/* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */
/* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */
/* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */
/* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */
/* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */
/* PB17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_DIV */
/* PB16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_ERR */
/* PB15 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_ERR */
/* PB14 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_EN */
/* PB13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:COL */
/* PB12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:CRS */
/* PB11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
/* PB10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
/* PB9 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
/* PB8 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
/* PB7 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
/* PB6 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
/* PB5 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
/* PB4 */ { 0, 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, 1, 0, 0 }, /* PC31 */
/* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */
/* PC29 */ { 0, 1, 1, 0, 0, 0 }, /* SCC1 EN *CLSN */
/* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* PC28 */
/* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* UART Clock in */
/* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */
/* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */
/* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */
/* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* ATMTFCLK */
/* PC22 */ { 0, 1, 0, 0, 0, 0 }, /* ATMRFCLK */
/* PC21 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */
/* PC20 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN TXCLK */
/* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK CLK13 */
/* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK14) */
/* PC17 */ { 0, 0, 0, 1, 0, 0 }, /* PC17 */
/* PC16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK16) */
/* PC15 */ { 0, 0, 0, 1, 0, 0 }, /* PC15 */
/* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN *CD */
/* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */
/* PC12 */ { 0, 1, 0, 1, 0, 0 }, /* PC12 */
/* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* LXT971 transmit control */
/* PC10 */ { 1, 1, 0, 0, 0, 0 }, /* LXT970 FETHMDC */
/* PC9 */ { 1, 1, 0, 0, 0, 0 }, /* LXT970 FETHMDIO */
/* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* PC8 */
/* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */
/* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */
/* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */
/* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */
/* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */
/* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* ENET FDE */
/* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* ENET DSQE */
/* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* ENET LBK */
},
/* Port D */
{ /* conf ppar psor pdir podr pdat */
/* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RxD */
/* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 EN TxD */
/* PD29 */ { 0, 1, 0, 1, 0, 0 }, /* SCC1 EN TENA */
/* 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 */ { 1, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
/* PD8 */ { 1, 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 */
}
};
typedef struct bscr_ {
unsigned long bcsr0;
unsigned long bcsr1;
unsigned long bcsr2;
unsigned long bcsr3;
unsigned long bcsr4;
unsigned long bcsr5;
unsigned long bcsr6;
unsigned long bcsr7;
} bcsr_t;
void reset_phy (void)
{
volatile bcsr_t *bcsr = (bcsr_t *) CFG_BCSR;
/* reset the FEC port */
bcsr->bcsr1 &= ~FETH_RST;
bcsr->bcsr1 |= FETH_RST;
}
int board_pre_init (void)
{
volatile bcsr_t *bcsr = (bcsr_t *) CFG_BCSR;
bcsr->bcsr1 = ~FETHIEN & ~RS232EN_1;
return 0;
}
#define ns2clk(ns) (ns / (1000000000 / CONFIG_8260_CLKIN) + 1)
long int initdram (int board_type)
{
volatile immap_t *immap = (immap_t *) CFG_IMMR;
volatile memctl8260_t *memctl = &immap->im_memctl;
volatile uchar *ramaddr, c = 0xff;
/* Initialisation is for 16MB DIMM the board is shipped with */
long int msize = 16;
uint or = 0xFF000CA0;
uint psdmr = CFG_PSDMR;
uint psrt = CFG_PSRT;
int i;
#ifndef CFG_RAMBOOT
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;
/* init local sdram, bank 4 */
memctl->memc_lsrt = 0x00000010;
memctl->memc_or4 = 0xFFC01480;
memctl->memc_br4 = 0x04001861;
memctl->memc_lsdmr = 0x2886A522;
ramaddr = (uchar *) CFG_LSDRAM_BASE;
*ramaddr = c;
memctl->memc_lsdmr = 0x0886A522;
for (i = 0; i < 8; i++) {
*ramaddr = c;
}
memctl->memc_lsdmr = 0x1886A522;
*ramaddr = c;
memctl->memc_lsdmr = 0x4086A522;
/* init sdram dimm */
#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 */
}
#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
/* return total ram size of DIMM */
return (msize * 1024 * 1024);
}
int checkboard (void)
{
puts ("Board: Motorola MPC8260ADS\n");
return 0;
}
|
