/* * 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; }