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/*
* board/mx1ads/mx1ads.c
*
* (c) Copyright 2004
* Techware Information Technology, Inc.
* http://www.techware.com.tw/
*
* Ming-Len Wu <minglen_wu@techware.com.tw>
*
* 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 <mc9328.h>*/
#include <asm/arch/imx-regs.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
#if 0
static inline void delay (unsigned long loops) {
__asm__ volatile ("1:\n"
"subs %0, %1, #1\n"
"bne 1b":"=r" (loops):"0" (loops));
}
#endif
/*
* Miscellaneous platform dependent initialisations
*/
void SetAsynchMode(void) {
__asm__ (
"mrc p15,0,r0,c1,c0,0 \n"
"mov r2, #0xC0000000 \n"
"orr r0,r2,r0 \n"
"mcr p15,0,r0,c1,c0,0 \n"
);
}
static u32 mc9328sid;
int board_init (void) {
DECLARE_GLOBAL_DATA_PTR;
volatile unsigned int tmp;
mc9328sid = SIDR;
GPCR = 0x000003AB; /* I/O pad driving strength */
/* MX1_CS1U = 0x00000A00; */ /* SRAM initialization */
/* MX1_CS1L = 0x11110601; */
MPCTL0 = 0x04632410; /* setting for 150 MHz MCU PLL CLK */
/* set FCLK divider 1 (i.e. FCLK to MCU PLL CLK) and
* BCLK divider to 2 (i.e. BCLK to 48 MHz)
*/
CSCR = 0xAF000403;
CSCR |= 0x00200000; /* Trigger the restart bit(bit 21) */
CSCR &= 0xFFFF7FFF; /* Program PRESC bit(bit 15) to 0 to divide-by-1 */
/* setup cs4 for cs8900 ethernet */
CS4U = 0x00000F00; /* Initialize CS4 for CS8900 ethernet */
CS4L = 0x00001501;
GIUS(0) &= 0xFF3FFFFF;
GPR(0) &= 0xFF3FFFFF;
tmp = *(unsigned int *)(0x1500000C);
tmp = *(unsigned int *)(0x1500000C);
SetAsynchMode();
gd->bd->bi_arch_number = MACH_TYPE_MX1ADS;
gd->bd->bi_boot_params = 0x08000100; /* adress of boot parameters */
icache_enable();
dcache_enable();
/* set PERCLKs */
PCDR = 0x00000055; /* set PERCLKS */
/* PERCLK3 is only used by SSI so the SSI driver can set it any value it likes
* PERCLK1 and PERCLK2 are shared so DO NOT change it in any other place
* all sources selected as normal interrupt
*/
/* MX1_INTTYPEH = 0;
MX1_INTTYPEL = 0;
*/
return 0;
}
int board_late_init(void) {
setenv("stdout", "serial");
setenv("stderr", "serial");
switch (mc9328sid) {
case 0x0005901d :
printf ("MX1ADS board with MC9328 MX1 (0L44N), Silicon ID 0x%08x \n\n",mc9328sid);
break;
case 0x04d4c01d :
printf ("MX1ADS board with MC9328 MXL (1L45N), Silicon ID 0x%08x \n\n",mc9328sid);
break;
case 0x00d4c01d :
printf ("MX1ADS board with MC9328 MXL (2L45N), Silicon ID 0x%08x \n\n",mc9328sid);
break;
default :
printf ("MX1ADS board with UNKNOWN MC9328 cpu, Silicon ID 0x%08x \n",mc9328sid);
break;
}
return 0;
}
int dram_init (void) {
DECLARE_GLOBAL_DATA_PTR;
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
return 0;
}
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