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gerrit.cesnet.cz / github / trini / u-boot / 1123d4122da5522f52c801f8507b82992af5a19f / . / board / keymile / mgcoge / mgcoge.c
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/*
* (C) Copyright 2007 - 2008
* 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 <mpc8260.h>
#include <ioports.h>
#include <malloc.h>
#include <asm/io.h>
#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
#include <libfdt.h>
#endif
#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
#include <i2c.h>
#endif
#include "../common/common.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 */
{ /* conf ppar psor pdir podr pdat */
/* PA31 */ { 0, 0, 0, 0, 0, 0 }, /* PA31 */
/* PA30 */ { 0, 0, 0, 0, 0, 0 }, /* PA30 */
/* PA29 */ { 0, 0, 0, 0, 0, 0 }, /* PA29 */
/* PA28 */ { 0, 0, 0, 0, 0, 0 }, /* PA28 */
/* PA27 */ { 0, 0, 0, 0, 0, 0 }, /* PA27 */
/* PA26 */ { 0, 0, 0, 0, 0, 0 }, /* PA26 */
/* 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 */ { 0, 0, 0, 0, 0, 0 }, /* PA21 */
/* PA20 */ { 0, 0, 0, 0, 0, 0 }, /* PA20 */
/* PA19 */ { 0, 0, 0, 0, 0, 0 }, /* PA19 */
/* PA18 */ { 0, 0, 0, 0, 0, 0 }, /* PA18 */
/* PA17 */ { 0, 0, 0, 0, 0, 0 }, /* PA17 */
/* PA16 */ { 0, 0, 0, 0, 0, 0 }, /* PA16 */
/* PA15 */ { 0, 0, 0, 0, 0, 0 }, /* PA15 */
/* PA14 */ { 0, 0, 0, 0, 0, 0 }, /* PA14 */
/* 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 */ { 1, 1, 0, 1, 0, 0 }, /* SMC2 TxD */
/* PA8 */ { 1, 1, 0, 0, 0, 0 }, /* SMC2 RxD */
/* PA7 */ { 0, 0, 0, 0, 0, 0 }, /* PA7 */
/* PA6 */ { 0, 0, 0, 0, 0, 0 }, /* PA6 */
/* PA5 */ { 0, 0, 0, 0, 0, 0 }, /* PA5 */
/* PA4 */ { 0, 0, 0, 0, 0, 0 }, /* PA4 */
/* PA3 */ { 0, 0, 0, 0, 0, 0 }, /* PA3 */
/* PA2 */ { 0, 0, 0, 0, 0, 0 }, /* PA2 */
/* PA1 */ { 0, 0, 0, 0, 0, 0 }, /* PA1 */
/* PA0 */ { 0, 0, 0, 0, 0, 0 } /* PA0 */
},
/* Port B */
{ /* conf ppar psor pdir podr pdat */
/* PB31 */ { 0, 0, 0, 0, 0, 0 }, /* PB31 */
/* PB30 */ { 0, 0, 0, 0, 0, 0 }, /* PB30 */
/* PB29 */ { 0, 0, 0, 0, 0, 0 }, /* PB29 */
/* PB28 */ { 0, 0, 0, 0, 0, 0 }, /* PB28 */
/* PB27 */ { 0, 0, 0, 0, 0, 0 }, /* PB27 */
/* PB26 */ { 0, 0, 0, 0, 0, 0 }, /* PB26 */
/* PB25 */ { 0, 0, 0, 0, 0, 0 }, /* PB25 */
/* PB24 */ { 0, 0, 0, 0, 0, 0 }, /* PB24 */
/* PB23 */ { 0, 0, 0, 0, 0, 0 }, /* PB23 */
/* PB22 */ { 0, 0, 0, 0, 0, 0 }, /* PB22 */
/* PB21 */ { 0, 0, 0, 0, 0, 0 }, /* PB21 */
/* PB20 */ { 0, 0, 0, 0, 0, 0 }, /* PB20 */
/* PB19 */ { 0, 0, 0, 0, 0, 0 }, /* PB19 */
/* PB18 */ { 0, 0, 0, 0, 0, 0 }, /* PB18 */
/* PB17 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB16 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB15 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB14 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB13 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB12 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB11 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB10 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB9 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB8 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB7 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB6 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB5 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB4 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PB0 */ { 0, 0, 0, 0, 0, 0 } /* non-existent */
},
/* 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 */ { 1, 1, 0, 0, 0, 0 }, /* SCC4 RxClk */
/* PC24 */ { 1, 1, 0, 0, 0, 0 }, /* SCC4 TxClk */
/* PC23 */ { 0, 0, 0, 0, 0, 0 }, /* PC23 */
/* PC22 */ { 0, 0, 0, 0, 0, 0 }, /* PC22 */
/* PC21 */ { 0, 0, 0, 0, 0, 0 }, /* PC21 */
/* PC20 */ { 0, 0, 0, 0, 0, 0 }, /* PC20 */
/* PC19 */ { 0, 0, 0, 0, 0, 0 }, /* PC19 */
/* PC18 */ { 0, 0, 0, 0, 0, 0 }, /* PC18 */
/* PC17 */ { 0, 0, 0, 0, 0, 0 }, /* PC17 */
/* PC16 */ { 0, 0, 0, 0, 0, 0 }, /* PC16 */
/* 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 */
/* PC10 */ { 0, 0, 0, 0, 0, 0 }, /* PC10 */
/* PC9 */ { 1, 1, 0, 0, 0, 0 }, /* SCC4: CTS */
/* PC8 */ { 1, 1, 0, 0, 0, 0 }, /* SCC4: CD */
/* 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 */ { 0, 0, 0, 0, 0, 0 }, /* PD31 */
/* PD30 */ { 0, 0, 0, 0, 0, 0 }, /* PD30 */
/* PD29 */ { 0, 0, 0, 0, 0, 0 }, /* PD29 */
/* PD28 */ { 0, 0, 0, 0, 0, 0 }, /* PD28 */
/* PD27 */ { 0, 0, 0, 0, 0, 0 }, /* PD27 */
/* PD26 */ { 0, 0, 0, 0, 0, 0 }, /* PD26 */
/* PD25 */ { 0, 0, 0, 0, 0, 0 }, /* PD25 */
/* PD24 */ { 0, 0, 0, 0, 0, 0 }, /* PD24 */
/* PD23 */ { 0, 0, 0, 0, 0, 0 }, /* PD23 */
/* PD22 */ { 1, 1, 0, 0, 0, 0 }, /* SCC4: RXD */
/* PD21 */ { 1, 1, 0, 1, 0, 0 }, /* SCC4: TXD */
/* PD20 */ { 1, 1, 0, 1, 0, 0 }, /* SCC4: RTS */
/* PD19 */ { 0, 0, 0, 0, 0, 0 }, /* PD19 */
/* PD18 */ { 0, 0, 0, 0, 0, 0 }, /* PD18 */
/* PD17 */ { 0, 0, 0, 0, 0, 0 }, /* PD17 */
/* PD16 */ { 0, 0, 0, 0, 0, 0 }, /* PD16 */
#if defined(CONFIG_HARD_I2C)
/* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */
/* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */
#else
/* PD15 */ { 1, 0, 0, 0, 1, 1 }, /* PD15 */
/* PD14 */ { 1, 0, 0, 1, 1, 1 }, /* PD14 */
#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 */ { 0, 0, 0, 0, 0, 0 }, /* PD9 */
/* PD8 */ { 0, 0, 0, 0, 0, 0 }, /* PD8 */
/* PD7 */ { 0, 0, 0, 0, 0, 0 }, /* PD7 */
/* PD6 */ { 0, 0, 0, 0, 0, 0 }, /* PD6 */
/* PD5 */ { 0, 0, 0, 0, 0, 0 }, /* PD5 */
/* PD4 */ { 0, 0, 0, 0, 0, 0 }, /* PD4 */
/* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* non-existent */
/* PD0 */ { 0, 0, 0, 0, 0, 0 } /* non-existent */
}
};
/* 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)
{
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*/;
sdmr_ptr = &memctl->memc_psdmr;
orx_ptr = &memctl->memc_or1;
*orx_ptr = orx;
/*
* 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;
long psize;
memctl->memc_psrt = CONFIG_SYS_PSRT;
memctl->memc_mptpr = CONFIG_SYS_MPTPR;
#ifndef CONFIG_SYS_RAMBOOT
/* 60x SDRAM setup:
*/
psize = try_init (memctl, CONFIG_SYS_PSDMR, CONFIG_SYS_OR1,
(uchar *) CONFIG_SYS_SDRAM_BASE);
#endif /* CONFIG_SYS_RAMBOOT */
icache_enable ();
return (psize);
}
int checkboard(void)
{
puts ("Board: Keymile mgcoge");
if (ethernet_present ())
puts (" with PIGGY.");
puts ("\n");
return 0;
}
/*
* Early board initalization.
*/
int board_early_init_r (void)
{
/* setup the UPIOx */
/* General Unit Reset disabled, Flash Bank enabled, UnitLed on */
out_8((u8 *)(CONFIG_SYS_PIGGY_BASE + 0x02), 0xc2);
/* SCC4 enable, halfduplex, FCC1 powerdown */
out_8((u8 *)(CONFIG_SYS_PIGGY_BASE + 0x03), 0x15);
return 0;
}
int hush_init_var (void)
{
ivm_read_eeprom ();
return 0;
}
#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
void ft_board_setup (void *blob, bd_t *bd)
{
ft_cpu_setup (blob, bd);
}
#endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */