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wdenk2d24a3a2004-06-09 21:50:45 +00001/*
2 * board/mx1ads/mx1ads.c
wdenk49822e22004-06-19 21:19:10 +00003 *
wdenk2d24a3a2004-06-09 21:50:45 +00004 * (c) Copyright 2004
5 * Techware Information Technology, Inc.
6 * http://www.techware.com.tw/
7 *
8 * Ming-Len Wu <minglen_wu@techware.com.tw>
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23 * MA 02111-1307 USA
24 */
25
wdenk2d24a3a2004-06-09 21:50:45 +000026#include <common.h>
wdenk281e00a2004-08-01 22:48:16 +000027/*#include <mc9328.h>*/
wdenk86c98882005-04-03 14:26:46 +000028#include <asm/arch/imx-regs.h>
wdenk2d24a3a2004-06-09 21:50:45 +000029
Wolfgang Denkd87080b2006-03-31 18:32:53 +020030DECLARE_GLOBAL_DATA_PTR;
wdenk2d24a3a2004-06-09 21:50:45 +000031
32#define FCLK_SPEED 1
33
34#if FCLK_SPEED==0 /* Fout = 203MHz, Fin = 12MHz for Audio */
35#define M_MDIV 0xC3
36#define M_PDIV 0x4
37#define M_SDIV 0x1
38#elif FCLK_SPEED==1 /* Fout = 202.8MHz */
39#define M_MDIV 0xA1
40#define M_PDIV 0x3
41#define M_SDIV 0x1
42#endif
43
44#define USB_CLOCK 1
45
46#if USB_CLOCK==0
47#define U_M_MDIV 0xA1
48#define U_M_PDIV 0x3
49#define U_M_SDIV 0x1
50#elif USB_CLOCK==1
51#define U_M_MDIV 0x48
52#define U_M_PDIV 0x3
53#define U_M_SDIV 0x2
54#endif
55
56#if 0
57
Wolfgang Denkd87080b2006-03-31 18:32:53 +020058static inline void delay (unsigned long loops)
59{
wdenk2d24a3a2004-06-09 21:50:45 +000060 __asm__ volatile ("1:\n"
Wolfgang Denkd87080b2006-03-31 18:32:53 +020061 "subs %0, %1, #1\n"
62 "bne 1b":"=r" (loops):"0" (loops));
wdenk2d24a3a2004-06-09 21:50:45 +000063}
64
wdenk49822e22004-06-19 21:19:10 +000065#endif
wdenk2d24a3a2004-06-09 21:50:45 +000066
67/*
68 * Miscellaneous platform dependent initialisations
69 */
70
Wolfgang Denkd87080b2006-03-31 18:32:53 +020071void SetAsynchMode (void)
72{
73 __asm__ ("mrc p15,0,r0,c1,c0,0 \n"
74 "mov r2, #0xC0000000 \n"
75 "orr r0,r2,r0 \n" "mcr p15,0,r0,c1,c0,0 \n");
wdenk2d24a3a2004-06-09 21:50:45 +000076}
wdenk49822e22004-06-19 21:19:10 +000077
wdenk2d24a3a2004-06-09 21:50:45 +000078static u32 mc9328sid;
79
Wolfgang Denkd87080b2006-03-31 18:32:53 +020080int board_init (void)
81{
82 volatile unsigned int tmp;
wdenk2d24a3a2004-06-09 21:50:45 +000083
Wolfgang Denkd87080b2006-03-31 18:32:53 +020084 mc9328sid = SIDR;
wdenk2d24a3a2004-06-09 21:50:45 +000085
Wolfgang Denkd87080b2006-03-31 18:32:53 +020086 GPCR = 0x000003AB; /* I/O pad driving strength */
wdenk2d24a3a2004-06-09 21:50:45 +000087
Wolfgang Denkcf48eb92006-04-16 10:51:58 +020088 /* MX1_CS1U = 0x00000A00; */ /* SRAM initialization */
wdenk2d24a3a2004-06-09 21:50:45 +000089/* MX1_CS1L = 0x11110601; */
wdenk2d24a3a2004-06-09 21:50:45 +000090
Wolfgang Denkd87080b2006-03-31 18:32:53 +020091 MPCTL0 = 0x04632410; /* setting for 150 MHz MCU PLL CLK */
wdenk2d24a3a2004-06-09 21:50:45 +000092
93/* set FCLK divider 1 (i.e. FCLK to MCU PLL CLK) and
94 * BCLK divider to 2 (i.e. BCLK to 48 MHz)
95 */
Wolfgang Denkd87080b2006-03-31 18:32:53 +020096 CSCR = 0xAF000403;
wdenk2d24a3a2004-06-09 21:50:45 +000097
Wolfgang Denkd87080b2006-03-31 18:32:53 +020098 CSCR |= 0x00200000; /* Trigger the restart bit(bit 21) */
99 CSCR &= 0xFFFF7FFF; /* Program PRESC bit(bit 15) to 0 to divide-by-1 */
wdenk2d24a3a2004-06-09 21:50:45 +0000100
101/* setup cs4 for cs8900 ethernet */
wdenk49822e22004-06-19 21:19:10 +0000102
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200103 CS4U = 0x00000F00; /* Initialize CS4 for CS8900 ethernet */
104 CS4L = 0x00001501;
wdenk49822e22004-06-19 21:19:10 +0000105
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200106 GIUS (0) &= 0xFF3FFFFF;
107 GPR (0) &= 0xFF3FFFFF;
wdenk49822e22004-06-19 21:19:10 +0000108
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200109 tmp = *(unsigned int *) (0x1500000C);
110 tmp = *(unsigned int *) (0x1500000C);
wdenk2d24a3a2004-06-09 21:50:45 +0000111
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200112 SetAsynchMode ();
wdenk2d24a3a2004-06-09 21:50:45 +0000113
wdenk731215e2004-10-10 18:41:04 +0000114 gd->bd->bi_arch_number = MACH_TYPE_MX1ADS;
wdenk2d24a3a2004-06-09 21:50:45 +0000115
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200116 gd->bd->bi_boot_params = 0x08000100; /* adress of boot parameters */
wdenk2d24a3a2004-06-09 21:50:45 +0000117
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200118 icache_enable ();
119 dcache_enable ();
wdenk2d24a3a2004-06-09 21:50:45 +0000120
121/* set PERCLKs */
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200122 PCDR = 0x00000055; /* set PERCLKS */
wdenk49822e22004-06-19 21:19:10 +0000123
124/* PERCLK3 is only used by SSI so the SSI driver can set it any value it likes
125 * PERCLK1 and PERCLK2 are shared so DO NOT change it in any other place
wdenk2d24a3a2004-06-09 21:50:45 +0000126 * all sources selected as normal interrupt
127 */
wdenk2d24a3a2004-06-09 21:50:45 +0000128
wdenk281e00a2004-08-01 22:48:16 +0000129/* MX1_INTTYPEH = 0;
130 MX1_INTTYPEL = 0;
131*/
wdenk2d24a3a2004-06-09 21:50:45 +0000132 return 0;
133}
134
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200135int board_late_init (void)
136{
wdenk2d24a3a2004-06-09 21:50:45 +0000137
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200138 setenv ("stdout", "serial");
139 setenv ("stderr", "serial");
wdenk2d24a3a2004-06-09 21:50:45 +0000140
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200141 switch (mc9328sid) {
142 case 0x0005901d:
143 printf ("MX1ADS board with MC9328 MX1 (0L44N), Silicon ID 0x%08x \n\n",
144 mc9328sid);
145 break;
146 case 0x04d4c01d:
147 printf ("MX1ADS board with MC9328 MXL (1L45N), Silicon ID 0x%08x \n\n",
148 mc9328sid);
149 break;
150 case 0x00d4c01d:
151 printf ("MX1ADS board with MC9328 MXL (2L45N), Silicon ID 0x%08x \n\n",
152 mc9328sid);
153 break;
wdenk2d24a3a2004-06-09 21:50:45 +0000154
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200155 default:
156 printf ("MX1ADS board with UNKNOWN MC9328 cpu, Silicon ID 0x%08x \n",
157 mc9328sid);
158 break;
wdenk2d24a3a2004-06-09 21:50:45 +0000159 }
wdenk2d24a3a2004-06-09 21:50:45 +0000160 return 0;
wdenk49822e22004-06-19 21:19:10 +0000161}
162
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200163int dram_init (void)
164{
wdenk2d24a3a2004-06-09 21:50:45 +0000165 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200166 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
wdenk2d24a3a2004-06-09 21:50:45 +0000167
168 return 0;
169}