mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-23 11:33:32 +00:00
c837dcb1a3
before we can access it; add delay in case we are faster (with no CF card inserted) * Cleanup of some init functions * Make sure SCC Ethernet is always stopped by the time we boot Linux to avoid Linux crashes by early packets coming in. * Accelerate flash accesses on LWMON board by using buffered writes
305 lines
13 KiB
C
305 lines
13 KiB
C
/*
|
|
* (C) Copyright 2000
|
|
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
|
|
* Marius Groeger <mgroeger@sysgo.de>
|
|
*
|
|
* (C) Copyright 2001
|
|
* Advent Networks, Inc. <http://www.adventnetworks.com>
|
|
* Jay Monkman <jtm@smoothsmoothie.com>
|
|
*
|
|
* 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 "rpxsuper.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 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 *ATMTXEN */
|
|
/* PA30 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMTCA */
|
|
/* PA29 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMTSOC */
|
|
/* PA28 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 *ATMRXEN */
|
|
/* PA27 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMRSOC */
|
|
/* PA26 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMRCA */
|
|
/* PA25 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMTXD[0] */
|
|
/* PA24 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMTXD[1] */
|
|
/* PA23 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMTXD[2] */
|
|
/* PA22 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMTXD[3] */
|
|
/* PA21 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMTXD[4] */
|
|
/* PA20 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMTXD[5] */
|
|
/* PA19 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMTXD[6] */
|
|
/* PA18 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMTXD[7] */
|
|
/* PA17 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMRXD[7] */
|
|
/* PA16 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMRXD[6] */
|
|
/* PA15 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMRXD[5] */
|
|
/* PA14 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMRXD[4] */
|
|
/* PA13 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMRXD[3] */
|
|
/* PA12 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMRXD[2] */
|
|
/* PA11 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMRXD[1] */
|
|
/* PA10 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMRXD[0] */
|
|
/* PA9 */ { 1, 1, 0, 1, 0, 0 }, /* SMC2 TXD */
|
|
/* PA8 */ { 1, 1, 0, 0, 0, 0 }, /* SMC2 RXD */
|
|
/* PA7 */ { 1, 0, 0, 0, 0, 0 }, /* PA7 */
|
|
/* PA6 */ { 1, 0, 0, 0, 0, 0 }, /* PA6 */
|
|
/* PA5 */ { 1, 0, 0, 0, 0, 0 }, /* PA5 */
|
|
/* PA4 */ { 1, 0, 0, 0, 0, 0 }, /* PA4 */
|
|
/* PA3 */ { 1, 0, 0, 0, 0, 0 }, /* PA3 */
|
|
/* PA2 */ { 1, 0, 0, 0, 0, 0 }, /* PA2 */
|
|
/* PA1 */ { 1, 0, 0, 0, 0, 0 }, /* PA1 */
|
|
/* PA0 */ { 1, 0, 0, 0, 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 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RX_DV */
|
|
/* PB16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RX_ER */
|
|
/* PB15 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TX_ER */
|
|
/* PB14 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TX_EN */
|
|
/* PB13 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII COL */
|
|
/* PB12 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII CRS */
|
|
/* PB11 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[3] */
|
|
/* PB10 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[2] */
|
|
/* PB9 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[1] */
|
|
/* PB8 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[0] */
|
|
/* PB7 */ { 0, 0, 0, 0, 0, 0 }, /* PB7 */
|
|
/* PB6 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[1] */
|
|
/* PB5 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[2] */
|
|
/* PB4 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[3] */
|
|
/* 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 */ { 1, 0, 0, 1, 0, 0 }, /* PC31 */
|
|
/* PC30 */ { 1, 0, 0, 1, 0, 0 }, /* PC30 */
|
|
/* PC29 */ { 1, 1, 1, 0, 0, 0 }, /* SCC1 EN *CLSN */
|
|
/* PC28 */ { 1, 0, 0, 1, 0, 0 }, /* PC28 */
|
|
/* PC27 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[0] */
|
|
/* PC26 */ { 1, 0, 0, 1, 0, 0 }, /* PC26 */
|
|
/* PC25 */ { 1, 0, 0, 1, 0, 0 }, /* PC25 */
|
|
/* PC24 */ { 1, 0, 0, 1, 0, 0 }, /* PC24 */
|
|
/* PC23 */ { 1, 1, 0, 1, 0, 0 }, /* ATMTFCLK */
|
|
/* PC22 */ { 1, 1, 0, 0, 0, 0 }, /* ATMRFCLK */
|
|
/* PC21 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */
|
|
/* PC20 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN TXCLK */
|
|
/* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK */
|
|
/* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII TX_CLK */
|
|
/* PC17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RX_CLK */
|
|
/* PC16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII TX_CLK */
|
|
/* PC15 */ { 1, 0, 0, 0, 0, 0 }, /* PC15 */
|
|
/* PC14 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN *CD */
|
|
/* PC13 */ { 1, 0, 0, 1, 0, 0 }, /* PC13 */
|
|
/* PC12 */ { 1, 0, 0, 1, 0, 0 }, /* PC12 */
|
|
/* PC11 */ { 1, 0, 0, 1, 0, 0 }, /* PC11 */
|
|
/* PC10 */ { 1, 0, 0, 1, 0, 0 }, /* FCC2 MDC */
|
|
/* PC9 */ { 1, 0, 0, 1, 0, 0 }, /* FCC2 MDIO */
|
|
/* PC8 */ { 1, 0, 0, 1, 0, 0 }, /* PC8 */
|
|
/* PC7 */ { 1, 0, 0, 1, 0, 0 }, /* PC7 */
|
|
/* PC6 */ { 1, 0, 0, 1, 0, 0 }, /* PC6 */
|
|
/* PC5 */ { 1, 0, 0, 1, 0, 0 }, /* PC5 */
|
|
/* PC4 */ { 1, 0, 0, 1, 0, 0 }, /* PC4 */
|
|
/* PC3 */ { 1, 0, 0, 1, 0, 0 }, /* PC3 */
|
|
/* PC2 */ { 1, 0, 0, 1, 0, 1 }, /* ENET FDE */
|
|
/* PC1 */ { 1, 0, 0, 1, 0, 0 }, /* ENET DSQE */
|
|
/* PC0 */ { 1, 0, 0, 1, 0, 0 }, /* ENET LBK */
|
|
},
|
|
|
|
/* Port D */
|
|
{ /* conf ppar psor pdir podr pdat */
|
|
/* PD31 */ { 1, 0, 0, 0, 0, 0 }, /* SCC1 EN RxD */
|
|
/* PD30 */ { 1, 0, 0, 0, 0, 0 }, /* SCC1 EN TxD */
|
|
/* PD29 */ { 1, 0, 0, 0, 0, 0 }, /* SCC1 EN TENA */
|
|
/* PD28 */ { 1, 0, 0, 0, 0, 0 }, /* PD28 */
|
|
/* PD27 */ { 1, 0, 0, 0, 0, 0 }, /* PD27 */
|
|
/* PD26 */ { 1, 0, 0, 0, 0, 0 }, /* PD26 */
|
|
/* PD25 */ { 1, 0, 0, 0, 0, 0 }, /* PD25 */
|
|
/* PD24 */ { 1, 0, 0, 0, 0, 0 }, /* PD24 */
|
|
/* PD23 */ { 1, 0, 0, 0, 0, 0 }, /* PD23 */
|
|
/* PD22 */ { 1, 0, 0, 0, 0, 0 }, /* PD22 */
|
|
/* PD21 */ { 1, 0, 0, 0, 0, 0 }, /* PD21 */
|
|
/* PD20 */ { 1, 0, 0, 0, 0, 0 }, /* PD20 */
|
|
/* PD19 */ { 1, 0, 0, 0, 0, 0 }, /* PD19 */
|
|
/* PD18 */ { 1, 0, 0, 0, 0, 0 }, /* PD19 */
|
|
/* PD17 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */
|
|
/* PD16 */ { 1, 0, 0, 0, 0, 0 }, /* FCC1 ATMTXPRTY */
|
|
/* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */
|
|
/* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */
|
|
/* PD13 */ { 1, 0, 0, 0, 0, 0 }, /* PD13 */
|
|
/* PD12 */ { 1, 0, 0, 0, 0, 0 }, /* PD12 */
|
|
/* PD11 */ { 1, 0, 0, 0, 0, 0 }, /* PD11 */
|
|
/* PD10 */ { 1, 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 */ { 1, 0, 0, 0, 0, 0 }, /* PD7 */
|
|
/* PD6 */ { 1, 0, 0, 0, 0, 0 }, /* PD6 */
|
|
/* PD5 */ { 1, 0, 0, 0, 0, 0 }, /* PD5 */
|
|
/* PD4 */ { 1, 0, 0, 0, 0, 0 }, /* 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 */
|
|
}
|
|
};
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* Setup CS4 to enable the Board Control/Status registers.
|
|
* Otherwise the smcs won't work.
|
|
*/
|
|
int board_early_init_f (void)
|
|
{
|
|
volatile t_rpx_regs *regs = (t_rpx_regs*)CFG_REGS_BASE;
|
|
volatile immap_t *immap = (immap_t *)CFG_IMMR;
|
|
volatile memctl8260_t *memctl = &immap->im_memctl;
|
|
memctl->memc_br4 = CFG_BR4_PRELIM;
|
|
memctl->memc_or4 = CFG_OR4_PRELIM;
|
|
regs->bcsr1 = 0x70; /* to enable terminal no SMC1 */
|
|
regs->bcsr2 = 0x20; /* mut be written to enable writing FLASH */
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
reset_phy(void)
|
|
{
|
|
volatile t_rpx_regs *regs = (t_rpx_regs*)CFG_REGS_BASE;
|
|
regs->bcsr4 = 0xC3;
|
|
}
|
|
|
|
/*
|
|
* Check Board Identity:
|
|
*/
|
|
|
|
int checkboard(void)
|
|
{
|
|
volatile t_rpx_regs *regs = (t_rpx_regs*)CFG_REGS_BASE;
|
|
printf ("Board: Embedded Planet RPX Super, Revision %d\n",
|
|
regs->bcsr0 >> 4);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
long int initdram(int board_type)
|
|
{
|
|
volatile immap_t *immap = (immap_t *)CFG_IMMR;
|
|
volatile memctl8260_t *memctl = &immap->im_memctl;
|
|
volatile uchar c = 0, *ramaddr;
|
|
ulong psdmr, lsdmr, bcr;
|
|
long size = 0;
|
|
int i;
|
|
|
|
psdmr = CFG_PSDMR;
|
|
lsdmr = CFG_LSDMR;
|
|
|
|
/*
|
|
* Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35):
|
|
*
|
|
* "At system reset, initialization software must set up the
|
|
* programmable parameters in the memory controller banks registers
|
|
* (ORx, BRx, P/LSDMR). After all memory parameters are configured,
|
|
* system software should execute the following initialization sequence
|
|
* for each SDRAM device.
|
|
*
|
|
* 1. Issue a PRECHARGE-ALL-BANKS command
|
|
* 2. Issue eight CBR REFRESH commands
|
|
* 3. Issue a MODE-SET command to initialize the mode register
|
|
*
|
|
* The initial commands are executed by setting P/LSDMR[OP] and
|
|
* accessing the SDRAM with a single-byte transaction."
|
|
*
|
|
* The appropriate BRx/ORx registers have already been set when we
|
|
* get here. The SDRAM can be accessed at the address CFG_SDRAM_BASE.
|
|
*/
|
|
|
|
size = CFG_SDRAM0_SIZE;
|
|
bcr = immap->im_siu_conf.sc_bcr;
|
|
immap->im_siu_conf.sc_bcr = (bcr & ~BCR_EBM);
|
|
|
|
memctl->memc_mptpr = CFG_MPTPR;
|
|
|
|
ramaddr = (uchar *)(CFG_SDRAM0_BASE);
|
|
memctl->memc_psrt = CFG_PSRT;
|
|
|
|
memctl->memc_psdmr = psdmr | PSDMR_OP_PREA;
|
|
*ramaddr = c;
|
|
|
|
memctl->memc_psdmr = psdmr | PSDMR_OP_CBRR;
|
|
for (i = 0; i < 8; i++)
|
|
*ramaddr = c;
|
|
|
|
memctl->memc_psdmr = psdmr | PSDMR_OP_MRW;
|
|
*ramaddr = c;
|
|
|
|
memctl->memc_psdmr = psdmr | PSDMR_OP_NORM | PSDMR_RFEN;
|
|
*ramaddr = c;
|
|
|
|
immap->im_siu_conf.sc_bcr = bcr;
|
|
|
|
#ifndef CFG_RAMBOOT
|
|
/* size += CFG_SDRAM1_SIZE; */
|
|
ramaddr = (uchar *)(CFG_SDRAM1_BASE);
|
|
memctl->memc_lsrt = CFG_LSRT;
|
|
|
|
memctl->memc_lsdmr = lsdmr | PSDMR_OP_PREA;
|
|
*ramaddr = c;
|
|
|
|
memctl->memc_lsdmr = lsdmr | PSDMR_OP_CBRR;
|
|
for (i = 0; i < 8; i++)
|
|
*ramaddr = c;
|
|
|
|
memctl->memc_lsdmr = lsdmr | PSDMR_OP_MRW;
|
|
*ramaddr = c;
|
|
|
|
memctl->memc_lsdmr = lsdmr | PSDMR_OP_NORM | PSDMR_RFEN;
|
|
*ramaddr = c;
|
|
#endif
|
|
|
|
/* return total ram size */
|
|
return (size * 1024 * 1024);
|
|
}
|