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uboot-1.1.4-kirkwood/board/mpl/vcma9/vcma9.c
Olaf Rempel f69754bccc u-boot 1.1.4
2024-01-07 23:57:24 +01:00

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/*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* (C) Copyright 2002
* David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
*
* 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 <s3c2410.h>
#include <i2c.h>
#include "vcma9.h"
#include "../common/common_util.h"
/* ------------------------------------------------------------------------- */
#define FCLK_SPEED 1
#if FCLK_SPEED==0 /* Fout = 203MHz, Fin = 12MHz for Audio */
#define M_MDIV 0xC3
#define M_PDIV 0x4
#define M_SDIV 0x1
#elif FCLK_SPEED==1 /* Fout = 202.8MHz */
#define M_MDIV 0xA1
#define M_PDIV 0x3
#define M_SDIV 0x1
#endif
#define USB_CLOCK 1
#if USB_CLOCK==0
#define U_M_MDIV 0xA1
#define U_M_PDIV 0x3
#define U_M_SDIV 0x1
#elif USB_CLOCK==1
#define U_M_MDIV 0x48
#define U_M_PDIV 0x3
#define U_M_SDIV 0x2
#endif
static inline void delay(unsigned long loops)
{
__asm__ volatile ("1:\n"
"subs %0, %1, #1\n"
"bne 1b":"=r" (loops):"0" (loops));
}
/*
* Miscellaneous platform dependent initialisations
*/
int board_init(void)
{
DECLARE_GLOBAL_DATA_PTR;
S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER();
S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
/* to reduce PLL lock time, adjust the LOCKTIME register */
clk_power->LOCKTIME = 0xFFFFFF;
/* configure MPLL */
clk_power->MPLLCON = ((M_MDIV << 12) + (M_PDIV << 4) + M_SDIV);
/* some delay between MPLL and UPLL */
delay (4000);
/* configure UPLL */
clk_power->UPLLCON = ((U_M_MDIV << 12) + (U_M_PDIV << 4) + U_M_SDIV);
/* some delay between MPLL and UPLL */
delay (8000);
/* set up the I/O ports */
gpio->GPACON = 0x007FFFFF;
gpio->GPBCON = 0x002AAAAA;
gpio->GPBUP = 0x000002BF;
gpio->GPCCON = 0xAAAAAAAA;
gpio->GPCUP = 0x0000FFFF;
gpio->GPDCON = 0xAAAAAAAA;
gpio->GPDUP = 0x0000FFFF;
gpio->GPECON = 0xAAAAAAAA;
gpio->GPEUP = 0x000037F7;
gpio->GPFCON = 0x00000000;
gpio->GPFUP = 0x00000000;
gpio->GPGCON = 0xFFEAFF5A;
gpio->GPGUP = 0x0000F0DC;
gpio->GPHCON = 0x0028AAAA;
gpio->GPHUP = 0x00000656;
/* setup correct IRQ modes for NIC */
gpio->EXTINT2 = (gpio->EXTINT2 & ~(7<<8)) | (4<<8); /* rising edge mode */
/* select USB port 2 to be host or device (fix to host for now) */
gpio->MISCCR |= 0x08;
/* init serial */
gd->baudrate = CONFIG_BAUDRATE;
gd->have_console = 1;
serial_init();
/* arch number of VCMA9-Board */
gd->bd->bi_arch_number = MACH_TYPE_MPL_VCMA9;
/* adress of boot parameters */
gd->bd->bi_boot_params = 0x30000100;
icache_enable();
dcache_enable();
return 0;
}
/*
* NAND flash initialization.
*/
#if (CONFIG_COMMANDS & CFG_CMD_NAND)
extern ulong
nand_probe(ulong physadr);
static inline void NF_Reset(void)
{
int i;
NF_SetCE(NFCE_LOW);
NF_Cmd(0xFF); /* reset command */
for(i = 0; i < 10; i++); /* tWB = 100ns. */
NF_WaitRB(); /* wait 200~500us; */
NF_SetCE(NFCE_HIGH);
}
static inline void NF_Init(void)
{
#if 0 /* a little bit too optimistic */
#define TACLS 0
#define TWRPH0 3
#define TWRPH1 0
#else
#define TACLS 0
#define TWRPH0 4
#define TWRPH1 2
#endif
NF_Conf((1<<15)|(0<<14)|(0<<13)|(1<<12)|(1<<11)|(TACLS<<8)|(TWRPH0<<4)|(TWRPH1<<0));
/*nand->NFCONF = (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(TACLS<<8)|(TWRPH0<<4)|(TWRPH1<<0); */
/* 1 1 1 1, 1 xxx, r xxx, r xxx */
/* En 512B 4step ECCR nFCE=H tACLS tWRPH0 tWRPH1 */
NF_Reset();
}
void
nand_init(void)
{
S3C2410_NAND * const nand = S3C2410_GetBase_NAND();
NF_Init();
#ifdef DEBUG
printf("NAND flash probing at 0x%.8lX\n", (ulong)nand);
#endif
printf ("%4lu MB\n", nand_probe((ulong)nand) >> 20);
}
#endif
/*
* Get some Board/PLD Info
*/
static u8 Get_PLD_ID(void)
{
VCMA9_PLD * const pld = VCMA9_GetBase_PLD();
return(pld->ID);
}
static u8 Get_PLD_BOARD(void)
{
VCMA9_PLD * const pld = VCMA9_GetBase_PLD();
return(pld->BOARD);
}
static u8 Get_PLD_SDRAM(void)
{
VCMA9_PLD * const pld = VCMA9_GetBase_PLD();
return(pld->SDRAM);
}
static u8 Get_PLD_Version(void)
{
return((Get_PLD_ID() >> 4) & 0x0F);
}
static u8 Get_PLD_Revision(void)
{
return(Get_PLD_ID() & 0x0F);
}
#if 0 /* not used */
static int Get_Board_Config(void)
{
u8 config = Get_PLD_BOARD() & 0x03;
if (config == 3)
return 1;
else
return 0;
}
#endif
static uchar Get_Board_PCB(void)
{
return(((Get_PLD_BOARD() >> 4) & 0x03) + 'A');
}
static u8 Get_SDRAM_ChipNr(void)
{
switch ((Get_PLD_SDRAM() >> 4) & 0x0F) {
case 0: return 4;
case 1: return 1;
case 2: return 2;
default: return 0;
}
}
static ulong Get_SDRAM_ChipSize(void)
{
switch (Get_PLD_SDRAM() & 0x0F) {
case 0: return 16 * (1024*1024);
case 1: return 32 * (1024*1024);
case 2: return 8 * (1024*1024);
case 3: return 8 * (1024*1024);
default: return 0;
}
}
static const char * Get_SDRAM_ChipGeom(void)
{
switch (Get_PLD_SDRAM() & 0x0F) {
case 0: return "4Mx8x4";
case 1: return "8Mx8x4";
case 2: return "2Mx8x4";
case 3: return "4Mx8x2";
default: return "unknown";
}
}
static void Show_VCMA9_Info(char *board_name, char *serial)
{
printf("Board: %s SN: %s PCB Rev: %c PLD(%d,%d)\n",
board_name, serial, Get_Board_PCB(), Get_PLD_Version(), Get_PLD_Revision());
printf("SDRAM: %d chips %s\n", Get_SDRAM_ChipNr(), Get_SDRAM_ChipGeom());
}
int dram_init(void)
{
DECLARE_GLOBAL_DATA_PTR;
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = Get_SDRAM_ChipSize() * Get_SDRAM_ChipNr();
return 0;
}
/* ------------------------------------------------------------------------- */
/*
* Check Board Identity:
*/
int checkboard(void)
{
unsigned char s[50];
int i;
backup_t *b = (backup_t *) s;
i = getenv_r("serial#", s, 32);
if ((i < 0) || strncmp (s, "VCMA9", 5)) {
get_backup_values (b);
if (strncmp (b->signature, "MPL\0", 4) != 0) {
puts ("### No HW ID - assuming VCMA9");
} else {
b->serial_name[5] = 0;
Show_VCMA9_Info(b->serial_name, &b->serial_name[6]);
}
} else {
s[5] = 0;
Show_VCMA9_Info(s, &s[6]);
}
/*printf("\n");*/
return(0);
}
extern void mem_test_reloc(void);
int last_stage_init(void)
{
mem_test_reloc();
checkboard();
show_stdio_dev();
check_env();
return 0;
}
/***************************************************************************
* some helping routines
*/
#if !CONFIG_USB_KEYBOARD
int overwrite_console(void)
{
/* return TRUE if console should be overwritten */
return 0;
}
#endif
/************************************************************************
* Print VCMA9 Info
************************************************************************/
void print_vcma9_info(void)
{
unsigned char s[50];
int i;
if ((i = getenv_r("serial#", s, 32)) < 0) {
puts ("### No HW ID - assuming VCMA9");
printf("i %d", i*24);
} else {
s[5] = 0;
Show_VCMA9_Info(s, &s[6]);
}
}
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