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u-boot/board/tqc/tqm8272/tqm8272.c
Wolfgang Denk 1f88433442 board/tqc/tqm8272/tqm8272.c: Fix GCC 4.6 build warning: 
Fix:
tqm8272.c: In function 'initdram':
tqm8272.c:462:14: warning: variable 'lsize' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-07 22:15:53 +01:00

960 lines
27 KiB
C
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/*
* (C) Copyright 2006
* Heiko Schocher, DENX Software Engineering, hs@denx.de.
*
* 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 <command.h>
#include <netdev.h>
#ifdef CONFIG_PCI
#include <pci.h>
#include <asm/m8260_pci.h>
#endif
#include "tqm8272.h"
#if 0
#define deb_printf(fmt,arg...) \
printf ("TQM8272 %s %s: " fmt,__FILE__, __FUNCTION__, ##arg)
#else
#define deb_printf(fmt,arg...) \
do { } while (0)
#endif
#if defined(CONFIG_BOARD_GET_CPU_CLK_F)
unsigned long board_get_cpu_clk_f (void);
#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
*/
const iop_conf_t iop_conf_tab[4][32] = {
/* Port A configuration */
{ /* conf ppar psor pdir podr pdat */
/* PA31 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 *ATMTXEN */
/* PA30 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTCA */
/* PA29 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTSOC */
/* PA28 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 *ATMRXEN */
/* PA27 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRSOC */
/* PA26 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRCA */
/* PA25 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[0] */
/* PA24 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[1] */
/* PA23 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[2] */
/* PA22 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[3] */
/* PA21 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[4] */
/* PA20 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[5] */
/* PA19 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[6] */
/* PA18 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[7] */
/* PA17 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[7] */
/* PA16 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[6] */
/* PA15 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[5] */
/* PA14 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[4] */
/* PA13 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[3] */
/* PA12 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[2] */
/* PA11 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[1] */
/* PA10 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[0] */
/* PA9 */ { 1, 1, 0, 1, 0, 0 }, /* SMC2 TXD */
/* PA8 */ { 1, 1, 0, 0, 0, 0 }, /* SMC2 RXD */
/* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */
/* PA6 */ { 0, 0, 0, 1, 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, 1, 0, 0 }, /* PA1 */
/* 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, 0, 0, 0, 0, 0 }, /* PB17 */
/* PB16 */ { 0, 0, 0, 0, 0, 0 }, /* PB16 */
/* PB15 */ { 0, 0, 0, 0, 0, 0 }, /* PB15 */
/* PB14 */ { 0, 0, 0, 0, 0, 0 }, /* PB14 */
/* PB13 */ { 0, 0, 0, 0, 0, 0 }, /* PB13 */
/* PB12 */ { 0, 0, 0, 0, 0, 0 }, /* PB12 */
/* PB11 */ { 0, 0, 0, 0, 0, 0 }, /* PB11 */
/* PB10 */ { 0, 0, 0, 0, 0, 0 }, /* PB10 */
/* PB9 */ { 0, 0, 0, 0, 0, 0 }, /* PB9 */
/* PB8 */ { 0, 0, 0, 0, 0, 0 }, /* PB8 */
/* PB7 */ { 0, 0, 0, 0, 0, 0 }, /* PB7 */
/* PB6 */ { 0, 0, 0, 0, 0, 0 }, /* PB6 */
/* PB5 */ { 0, 0, 0, 0, 0, 0 }, /* PB5 */
/* PB4 */ { 0, 0, 0, 0, 0, 0 }, /* PB4 */
/* 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, 0, 0, 0 }, /* PC30 */
/* PC29 */ { 1, 1, 1, 0, 0, 0 }, /* SCC1 EN *CLSN */
/* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* PC28 */
/* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* PC27 */
/* 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 */ { 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, 0, 0, 1, 0, 0 }, /* PC17 MDC */
/* PC16 */ { 1, 0, 0, 0, 0, 0 }, /* PC16 MDIO*/
/* PC15 */ { 0, 0, 0, 1, 0, 0 }, /* PC15 */
/* PC14 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN *CD */
/* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */
/* PC12 */ { 0, 0, 0, 1, 0, 0 }, /* PC12 */
/* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* PC11 */
/* PC10 */ { 0, 0, 0, 1, 0, 0 }, /* PC10 */
/* PC9 */ { 0, 0, 0, 1, 0, 0 }, /* PC9 */
/* 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 */ { 1, 1, 0, 1, 0, 0 }, /* PC5 SMC1 TXD */
/* PC4 */ { 1, 1, 0, 0, 0, 0 }, /* PC4 SMC1 RXD */
/* 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 */ { 1, 1, 0, 1, 0, 0 }, /* SCC1 EN TENA */
/* PD28 */ { 0, 0, 0, 1, 0, 0 }, /* PD28 */
/* PD27 */ { 0, 0, 0, 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 }, /* PD19 */
/* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */
/* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXPRTY */
#if defined(CONFIG_SOFT_I2C)
/* PD15 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SDA */
/* PD14 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SCL */
#else
#if defined(CONFIG_HARD_I2C)
/* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */
/* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */
#else /* normal I/O port pins */
/* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */
/* PD14 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SCL */
#endif
#endif
/* 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, 0 }, /* 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 */
}
};
/* UPM pattern for slow init */
static const uint upmTableSlow[] =
{
/* Offset UPM Read Single RAM array entry */
/* 0x00 */ 0xffffee00, 0x00ffcc80, 0x00ffcf00, 0x00ffdc00,
/* 0x04 */ 0x00ffce80, 0x00ffcc00, 0x00ffee00, 0x3fffcc07,
/* UPM Read Burst RAM array entry -> unused */
/* 0x08 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* 0x0C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* UPM Read Burst RAM array entry -> unused */
/* 0x10 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* 0x14 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* UPM Write Single RAM array entry */
/* 0x18 */ 0xffffee00, 0x00ffec80, 0x00ffef00, 0x00fffc80,
/* 0x1C */ 0x00fffe00, 0x00ffec00, 0x0fffef00, 0x3fffec05,
/* UPM Write Burst RAM array entry -> unused */
/* 0x20 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* 0x24 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* 0x28 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* 0x2C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
/* UPM Refresh Timer RAM array entry -> unused */
/* 0x30 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* 0x34 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* 0x38 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
/* UPM Exception RAM array entry -> unused */
/* 0x3C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
};
/* UPM pattern for fast init */
static const uint upmTableFast[] =
{
/* Offset UPM Read Single RAM array entry */
/* 0x00 */ 0xffffee00, 0x00ffcc80, 0x00ffcd80, 0x00ffdc00,
/* 0x04 */ 0x00ffdc00, 0x00ffcf00, 0x00ffec00, 0x3fffcc07,
/* UPM Read Burst RAM array entry -> unused */
/* 0x08 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* 0x0C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* UPM Read Burst RAM array entry -> unused */
/* 0x10 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* 0x14 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* UPM Write Single RAM array entry */
/* 0x18 */ 0xffffee00, 0x00ffec80, 0x00ffee80, 0x00fffc00,
/* 0x1C */ 0x00fffc00, 0x00ffec00, 0x0fffef00, 0x3fffec05,
/* UPM Write Burst RAM array entry -> unused */
/* 0x20 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* 0x24 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* 0x28 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* 0x2C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
/* UPM Refresh Timer RAM array entry -> unused */
/* 0x30 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* 0x34 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
/* 0x38 */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
/* UPM Exception RAM array entry -> unused */
/* 0x3C */ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
};
/* ------------------------------------------------------------------------- */
/* Check Board Identity:
*/
int checkboard (void)
{
char *p = (char *) HWIB_INFO_START_ADDR;
puts ("Board: ");
if (*((unsigned long *)p) == (unsigned long)CONFIG_SYS_HWINFO_MAGIC) {
puts (p);
} else {
puts ("No HWIB assuming TQM8272");
}
putc ('\n');
return 0;
}
/* ------------------------------------------------------------------------- */
#if defined(CONFIG_BOARD_GET_CPU_CLK_F)
static int get_cas_latency (void)
{
/* get it from the option -ts in CIB */
/* default is 3 */
int ret = 3;
int pos = 0;
char *p = (char *) CIB_INFO_START_ADDR;
while ((*p != '\0') && (pos < CIB_INFO_LEN)) {
if (*p < ' ' || *p > '~') { /* ASCII strings! */
return ret;
}
if (*p == '-') {
if ((p[1] == 't') && (p[2] == 's')) {
return (p[4] - '0');
}
}
p++;
pos++;
}
return ret;
}
#endif
static ulong set_sdram_timing (volatile uint *sdmr_ptr, ulong sdmr, int col)
{
#if defined(CONFIG_BOARD_GET_CPU_CLK_F)
int clk = board_get_cpu_clk_f ();
volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
int busmode = (immr->im_siu_conf.sc_bcr & BCR_EBM ? 1 : 0);
int cas;
sdmr = sdmr & ~(PSDMR_RFRC_MSK | PSDMR_PRETOACT_MSK | PSDMR_WRC_MSK | \
PSDMR_BUFCMD);
if (busmode) {
switch (clk) {
case 66666666:
sdmr |= (PSDMR_RFRC_66MHZ_60X | \
PSDMR_PRETOACT_66MHZ_60X | \
PSDMR_WRC_66MHZ_60X | \
PSDMR_BUFCMD_66MHZ_60X);
break;
case 100000000:
sdmr |= (PSDMR_RFRC_100MHZ_60X | \
PSDMR_PRETOACT_100MHZ_60X | \
PSDMR_WRC_100MHZ_60X | \
PSDMR_BUFCMD_100MHZ_60X);
break;
}
} else {
switch (clk) {
case 66666666:
sdmr |= (PSDMR_RFRC_66MHZ_SINGLE | \
PSDMR_PRETOACT_66MHZ_SINGLE | \
PSDMR_WRC_66MHZ_SINGLE | \
PSDMR_BUFCMD_66MHZ_SINGLE);
break;
case 100000000:
sdmr |= (PSDMR_RFRC_100MHZ_SINGLE | \
PSDMR_PRETOACT_100MHZ_SINGLE | \
PSDMR_WRC_100MHZ_SINGLE | \
PSDMR_BUFCMD_100MHZ_SINGLE);
break;
case 133333333:
sdmr |= (PSDMR_RFRC_133MHZ_SINGLE | \
PSDMR_PRETOACT_133MHZ_SINGLE | \
PSDMR_WRC_133MHZ_SINGLE | \
PSDMR_BUFCMD_133MHZ_SINGLE);
break;
}
}
cas = get_cas_latency();
sdmr &=~ (PSDMR_CL_MSK | PSDMR_LDOTOPRE_MSK);
sdmr |= cas;
sdmr |= ((cas - 1) << 6);
return sdmr;
#else
return sdmr;
#endif
}
/* Try SDRAM initialization with P/LSDMR=sdmr and ORx=orx
*
* This routine performs standard 8260 initialization sequence
* and calculates the available memory size. It may be called
* several times to try different SDRAM configurations on both
* 60x and local buses.
*/
static long int try_init (volatile memctl8260_t * memctl, ulong sdmr,
ulong orx, volatile uchar * base, int col)
{
volatile uchar c = 0xff;
volatile uint *sdmr_ptr;
volatile uint *orx_ptr;
ulong maxsize, size;
int i;
/* We must be able to test a location outsize the maximum legal size
* to find out THAT we are outside; but this address still has to be
* mapped by the controller. That means, that the initial mapping has
* to be (at least) twice as large as the maximum expected size.
*/
maxsize = (1 + (~orx | 0x7fff)) / 2;
/* Since CONFIG_SYS_SDRAM_BASE is always 0 (??), we assume that
* we are configuring CS1 if base != 0
*/
sdmr_ptr = base ? &memctl->memc_lsdmr : &memctl->memc_psdmr;
orx_ptr = base ? &memctl->memc_or2 : &memctl->memc_or1;
*orx_ptr = orx;
sdmr = set_sdram_timing (sdmr_ptr, sdmr, col);
/*
* 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 CONFIG_SYS_SDRAM_BASE.
*/
*sdmr_ptr = sdmr | PSDMR_OP_PREA;
*base = c;
*sdmr_ptr = sdmr | PSDMR_OP_CBRR;
for (i = 0; i < 8; i++)
*base = c;
*sdmr_ptr = sdmr | PSDMR_OP_MRW;
*(base + CONFIG_SYS_MRS_OFFS) = c; /* setting MR on address lines */
*sdmr_ptr = sdmr | PSDMR_OP_NORM | PSDMR_RFEN;
*base = c;
size = get_ram_size((long *)base, maxsize);
*orx_ptr = orx | ~(size - 1);
return (size);
}
phys_size_t initdram (int board_type)
{
volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
volatile memctl8260_t *memctl = &immap->im_memctl;
#ifndef CONFIG_SYS_RAMBOOT
long size8, size9;
#endif
long psize;
psize = 16 * 1024 * 1024;
memctl->memc_psrt = CONFIG_SYS_PSRT;
memctl->memc_mptpr = CONFIG_SYS_MPTPR;
#ifndef CONFIG_SYS_RAMBOOT
/* 60x SDRAM setup:
*/
size8 = try_init (memctl, CONFIG_SYS_PSDMR_8COL, CONFIG_SYS_OR1_8COL,
(uchar *) CONFIG_SYS_SDRAM_BASE, 8);
size9 = try_init (memctl, CONFIG_SYS_PSDMR_9COL, CONFIG_SYS_OR1_9COL,
(uchar *) CONFIG_SYS_SDRAM_BASE, 9);
if (size8 < size9) {
psize = size9;
printf ("(60x:9COL - %ld MB, ", psize >> 20);
} else {
psize = try_init (memctl, CONFIG_SYS_PSDMR_8COL, CONFIG_SYS_OR1_8COL,
(uchar *) CONFIG_SYS_SDRAM_BASE, 8);
printf ("(60x:8COL - %ld MB, ", psize >> 20);
}
#endif /* CONFIG_SYS_RAMBOOT */
icache_enable ();
return (psize);
}
static inline int scanChar (char *p, int len, unsigned long *number)
{
int akt = 0;
*number = 0;
while (akt < len) {
if ((*p >= '0') && (*p <= '9')) {
*number *= 10;
*number += *p - '0';
p += 1;
} else {
if (*p == '-') return akt;
return -1;
}
akt ++;
}
return akt;
}
static int dump_hwib(void)
{
HWIB_INFO *hw = &hwinf;
char buf[64];
int i = getenv_f("serial#", buf, sizeof(buf));
volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
if (i < 0)
buf[0] = '\0';
if (hw->OK) {
printf ("HWIB on %x\n", HWIB_INFO_START_ADDR);
printf ("serial : %s\n", buf);
printf ("ethaddr: %s\n", hw->ethaddr);
printf ("FLASH : %x nr:%d\n", hw->flash, hw->flash_nr);
printf ("RAM : %x cs:%d\n", hw->ram, hw->ram_cs);
printf ("CPU : %lu\n", hw->cpunr);
printf ("CAN : %d\n", hw->can);
if (hw->eeprom) printf ("EEprom : %x\n", hw->eeprom);
else printf ("No EEprom\n");
if (hw->nand) {
printf ("NAND : %x\n", hw->nand);
printf ("NAND CS: %d\n", hw->nand_cs);
} else { printf ("No NAND\n");}
printf ("Bus %s mode.\n", (hw->Bus ? "60x" : "Single PQII"));
printf (" real : %s\n", (immr->im_siu_conf.sc_bcr & BCR_EBM ? \
"60x" : "Single PQII"));
printf ("Option : %lx\n", hw->option);
printf ("%s Security Engine\n", (hw->SecEng ? "with" : "no"));
printf ("CPM Clk: %d\n", hw->cpmcl);
printf ("CPU Clk: %d\n", hw->cpucl);
printf ("Bus Clk: %d\n", hw->buscl);
if (hw->busclk_real_ok) {
printf (" real Clk: %d\n", hw->busclk_real);
}
printf ("CAS : %d\n", get_cas_latency());
} else {
printf("HWIB @%x not OK\n", HWIB_INFO_START_ADDR);
}
return 0;
}
static inline int search_real_busclk (int *clk)
{
int part = 0, pos = 0;
char *p = (char *) CIB_INFO_START_ADDR;
int ok = 0;
while ((*p != '\0') && (pos < CIB_INFO_LEN)) {
if (*p < ' ' || *p > '~') { /* ASCII strings! */
return 0;
}
switch (part) {
default:
if (*p == '-') {
++part;
}
break;
case 3:
if (*p == '-') {
++part;
break;
}
if (*p == 'b') {
ok = 1;
p++;
break;
}
if (ok) {
switch (*p) {
case '6':
*clk = 66666666;
return 1;
break;
case '1':
if (p[1] == '3') {
*clk = 133333333;
} else {
*clk = 100000000;
}
return 1;
break;
}
}
break;
}
p++;
}
return 0;
}
int analyse_hwib (void)
{
char *p = (char *) HWIB_INFO_START_ADDR;
int anz;
int part = 1, i = 0, pos = 0;
HWIB_INFO *hw = &hwinf;
deb_printf(" %s pointer: %p\n", __FUNCTION__, p);
/* Head = TQM */
if (*((unsigned long *)p) != (unsigned long)CONFIG_SYS_HWINFO_MAGIC) {
deb_printf("No HWIB\n");
return -1;
}
p += 3;
if (scanChar (p, 4, &hw->cpunr) < 0) {
deb_printf("No CPU\n");
return -2;
}
p +=4;
hw->flash = 0x200000 << (*p - 'A');
p++;
hw->flash_nr = *p - '0';
p++;
hw->ram = 0x2000000 << (*p - 'A');
p++;
if (*p == '2') {
hw->ram_cs = 2;
p++;
}
if (*p == 'A') hw->can = 1;
if (*p == 'B') hw->can = 2;
p +=1;
p +=1; /* connector */
if (*p != '0') {
hw->eeprom = 0x1000 << (*p - 'A');
}
p++;
if ((*p < '0') || (*p > '9')) {
/* NAND before z-option */
hw->nand = 0x8000000 << (*p - 'A');
p++;
hw->nand_cs = *p - '0';
p += 2;
}
/* z-option */
anz = scanChar (p, 4, &hw->option);
if (anz < 0) {
deb_printf("No option\n");
return -3;
}
if (hw->option & 0x8) hw->Bus = 1;
p += anz;
if (*p != '-') {
deb_printf("No -\n");
return -4;
}
p++;
/* C option */
if (*p == 'E') {
hw->SecEng = 1;
p++;
}
switch (*p) {
case 'M': hw->cpucl = 266666666;
break;
case 'P': hw->cpucl = 300000000;
break;
case 'T': hw->cpucl = 400000000;
break;
default:
deb_printf("No CPU Clk: %c\n", *p);
return -5;
break;
}
p++;
switch (*p) {
case 'I': hw->cpmcl = 200000000;
break;
case 'M': hw->cpmcl = 300000000;
break;
default:
deb_printf("No CPM Clk\n");
return -6;
break;
}
p++;
switch (*p) {
case 'B': hw->buscl = 66666666;
break;
case 'E': hw->buscl = 100000000;
break;
case 'F': hw->buscl = 133333333;
break;
default:
deb_printf("No BUS Clk\n");
return -7;
break;
}
p++;
hw->OK = 1;
/* search MAC Address */
while ((*p != '\0') && (pos < CONFIG_SYS_HWINFO_SIZE)) {
if (*p < ' ' || *p > '~') { /* ASCII strings! */
return 0;
}
switch (part) {
default:
if (*p == ' ') {
++part;
i = 0;
}
break;
case 3: /* Copy MAC address */
if (*p == ' ') {
++part;
i = 0;
break;
}
hw->ethaddr[i++] = *p;
if ((i % 3) == 2)
hw->ethaddr[i++] = ':';
break;
}
p++;
}
hw->busclk_real_ok = search_real_busclk (&hw->busclk_real);
return 0;
}
#if defined(CONFIG_GET_CPU_STR_F)
/* !! This routine runs from Flash */
char get_cpu_str_f (char *buf)
{
char *p = (char *) HWIB_INFO_START_ADDR;
int i = 0;
buf[i++] = 'M';
buf[i++] = 'P';
buf[i++] = 'C';
if (*((unsigned long *)p) == (unsigned long)CONFIG_SYS_HWINFO_MAGIC) {
buf[i++] = *&p[3];
buf[i++] = *&p[4];
buf[i++] = *&p[5];
buf[i++] = *&p[6];
} else {
buf[i++] = '8';
buf[i++] = '2';
buf[i++] = '7';
buf[i++] = 'x';
}
buf[i++] = 0;
return 0;
}
#endif
#if defined(CONFIG_BOARD_GET_CPU_CLK_F)
/* !! This routine runs from Flash */
unsigned long board_get_cpu_clk_f (void)
{
char *p = (char *) HWIB_INFO_START_ADDR;
int i = 0;
if (*((unsigned long *)p) == (unsigned long)CONFIG_SYS_HWINFO_MAGIC) {
if (search_real_busclk (&i))
return i;
}
return CONFIG_8260_CLKIN;
}
#endif
#if CONFIG_BOARD_EARLY_INIT_R
static int can_test (unsigned long off)
{
volatile unsigned char *base = (unsigned char *) (CONFIG_SYS_CAN_BASE + off);
*(base + 0x17) = 'T';
*(base + 0x18) = 'Q';
*(base + 0x19) = 'M';
if ((*(base + 0x17) != 'T') ||
(*(base + 0x18) != 'Q') ||
(*(base + 0x19) != 'M')) {
return 0;
}
return 1;
}
static int can_config_one (unsigned long off)
{
volatile unsigned char *ctrl = (unsigned char *) (CONFIG_SYS_CAN_BASE + off);
volatile unsigned char *cpu_if = (unsigned char *) (CONFIG_SYS_CAN_BASE + off + 0x02);
volatile unsigned char *clkout = (unsigned char *) (CONFIG_SYS_CAN_BASE + off + 0x1f);
unsigned char temp;
*cpu_if = 0x45;
temp = *ctrl;
temp |= 0x40;
*ctrl = temp;
*clkout = 0x20;
temp = *ctrl;
temp &= ~0x40;
*ctrl = temp;
return 0;
}
static int can_config (void)
{
int ret = 0;
can_config_one (0);
if (hwinf.can == 2) {
can_config_one (0x100);
}
/* make Test if they really there */
ret += can_test (0);
ret += can_test (0x100);
return ret;
}
static int init_can (void)
{
volatile immap_t * immr = (immap_t *)CONFIG_SYS_IMMR;
volatile memctl8260_t *memctl = &immr->im_memctl;
int count = 0;
if ((hwinf.OK) && (hwinf.can)) {
memctl->memc_or4 = CONFIG_SYS_CAN_OR;
memctl->memc_br4 = CONFIG_SYS_CAN_BR;
/* upm Init */
upmconfig (UPMC, (uint *) upmTableFast,
sizeof (upmTableFast) / sizeof (uint));
memctl->memc_mcmr = (MxMR_DSx_3_CYCL |
MxMR_GPL_x4DIS |
MxMR_RLFx_2X |
MxMR_WLFx_2X |
MxMR_OP_NORM);
/* can configure */
count = can_config ();
printf ("CAN: %d @ %x\n", count, CONFIG_SYS_CAN_BASE);
if (hwinf.can != count) printf("!!! difference to HWIB\n");
} else {
printf ("CAN: No\n");
}
return 0;
}
int board_early_init_r(void)
{
analyse_hwib ();
init_can ();
return 0;
}
#endif
int do_hwib_dump (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
{
dump_hwib ();
return 0;
}
U_BOOT_CMD(
hwib, 1, 1, do_hwib_dump,
"dump HWIB'",
""
);
#ifdef CONFIG_SYS_UPDATE_FLASH_SIZE
static int get_flash_timing (void)
{
/* get it from the option -tf in CIB */
/* default is 0x00000c84 */
int ret = 0x00000c84;
int pos = 0;
int nr = 0;
char *p = (char *) CIB_INFO_START_ADDR;
while ((*p != '\0') && (pos < CIB_INFO_LEN)) {
if (*p < ' ' || *p > '~') { /* ASCII strings! */
return ret;
}
if (*p == '-') {
if ((p[1] == 't') && (p[2] == 'f')) {
p += 6;
ret = 0;
while (nr < 8) {
if ((*p >= '0') && (*p <= '9')) {
ret *= 0x10;
ret += *p - '0';
p += 1;
nr ++;
} else if ((*p >= 'A') && (*p <= 'F')) {
ret *= 10;
ret += *p - '7';
p += 1;
nr ++;
} else {
if (nr < 8) return 0x00000c84;
return ret;
}
}
}
}
p++;
pos++;
}
return ret;
}
/* Update the Flash_Size and the Flash Timing */
int update_flash_size (int flash_size)
{
volatile immap_t * immr = (immap_t *)CONFIG_SYS_IMMR;
volatile memctl8260_t *memctl = &immr->im_memctl;
unsigned long reg;
unsigned long tim;
/* I must use reg, otherwise the board hang */
reg = memctl->memc_or0;
reg &= ~ORxU_AM_MSK;
reg |= MEG_TO_AM(flash_size >> 20);
tim = get_flash_timing ();
reg &= ~0xfff;
reg |= (tim & 0xfff);
memctl->memc_or0 = reg;
return 0;
}
#endif
#ifdef CONFIG_PCI
struct pci_controller hose;
int board_early_init_f (void)
{
volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
immap->im_clkrst.car_sccr |= M826X_SCCR_PCI_MODE_EN;
return 0;
}
extern void pci_mpc8250_init(struct pci_controller *);
void pci_init_board(void)
{
pci_mpc8250_init(&hose);
}
#endif
int board_eth_init(bd_t *bis)
{
return pci_eth_init(bis);
}
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