1 /*
2  * (C) Copyright 2007-2008
3  * Stelian Pop <stelian.pop@leadtechdesign.com>
4  * Lead Tech Design <www.leadtechdesign.com>
5  *
6  * Configuation settings for the AT91SAM9RLEK board.
7  *
8  * See file CREDITS for list of people who contributed to this
9  * project.
10  *
11  * This program is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU General Public License as
13  * published by the Free Software Foundation; either version 2 of
14  * the License, or (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program; if not, write to the Free Software
23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24  * MA 02111-1307 USA
25  */
26 
27 #ifndef __CONFIG_H
28 #define __CONFIG_H
29 
30 /* ARM asynchronous clock */
31 #define AT91_CPU_NAME		"AT91SAM9RL"
32 #define AT91_MAIN_CLOCK		12000000	/* 12 MHz crystal */
33 #define AT91_MASTER_CLOCK	100000000	/* peripheral */
34 #define AT91_CPU_CLOCK		200000000	/* cpu */
35 #define CONFIG_SYS_HZ		1000000		/* 1us resolution */
36 
37 #define AT91_SLOW_CLOCK		32768	/* slow clock */
38 
39 #define CONFIG_ARM926EJS	1	/* This is an ARM926EJS Core	*/
40 #define CONFIG_AT91SAM9RL	1	/* It's an Atmel AT91SAM9RL SoC*/
41 #define CONFIG_AT91SAM9RLEK	1	/* on an AT91SAM9RLEK Board	*/
42 #undef CONFIG_USE_IRQ			/* we don't need IRQ/FIQ stuff	*/
43 
44 #define CONFIG_CMDLINE_TAG	1	/* enable passing of ATAGs	*/
45 #define CONFIG_SETUP_MEMORY_TAGS 1
46 #define CONFIG_INITRD_TAG	1
47 
48 #define CONFIG_SKIP_LOWLEVEL_INIT
49 #define CONFIG_SKIP_RELOCATE_UBOOT
50 
51 /*
52  * Hardware drivers
53  */
54 #define CONFIG_ATMEL_USART	1
55 #undef CONFIG_USART0
56 #undef CONFIG_USART1
57 #undef CONFIG_USART2
58 #define CONFIG_USART3		1	/* USART 3 is DBGU */
59 
60 /* LCD */
61 #define CONFIG_LCD			1
62 #define LCD_BPP				LCD_COLOR8
63 #define CONFIG_LCD_LOGO			1
64 #undef LCD_TEST_PATTERN
65 #define CONFIG_LCD_INFO			1
66 #define CONFIG_LCD_INFO_BELOW_LOGO	1
67 #define CONFIG_SYS_WHITE_ON_BLACK		1
68 #define CONFIG_ATMEL_LCD		1
69 #define CONFIG_ATMEL_LCD_RGB565		1
70 #define CONFIG_SYS_CONSOLE_IS_IN_ENV		1
71 
72 #define CONFIG_BOOTDELAY	3
73 
74 /*
75  * Command line configuration.
76  */
77 #include <config_cmd_default.h>
78 #undef CONFIG_CMD_BDI
79 #undef CONFIG_CMD_IMI
80 #undef CONFIG_CMD_AUTOSCRIPT
81 #undef CONFIG_CMD_FPGA
82 #undef CONFIG_CMD_LOADS
83 #undef CONFIG_CMD_IMLS
84 #undef CONFIG_CMD_NET
85 #undef CONFIG_CMD_USB
86 
87 #define CONFIG_CMD_NAND		1
88 
89 /* SDRAM */
90 #define CONFIG_NR_DRAM_BANKS		1
91 #define PHYS_SDRAM			0x20000000
92 #define PHYS_SDRAM_SIZE			0x04000000	/* 64 megs */
93 
94 /* DataFlash */
95 #define CONFIG_HAS_DATAFLASH		1
96 #define CONFIG_SYS_SPI_WRITE_TOUT		(5*CONFIG_SYS_HZ)
97 #define CONFIG_SYS_MAX_DATAFLASH_BANKS		1
98 #define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0	0xC0000000	/* CS0 */
99 #define AT91_SPI_CLK			15000000
100 #define DATAFLASH_TCSS			(0x1a << 16)
101 #define DATAFLASH_TCHS			(0x1 << 24)
102 
103 /* NOR flash - not present */
104 #define CONFIG_SYS_NO_FLASH			1
105 
106 /* NAND flash */
107 #define CONFIG_SYS_MAX_NAND_DEVICE		1
108 #define CONFIG_SYS_NAND_BASE			0x40000000
109 #define CONFIG_SYS_NAND_DBW_8			1
110 
111 /* Ethernet - not present */
112 
113 /* USB - not supported */
114 
115 #define CONFIG_SYS_LOAD_ADDR			0x22000000	/* load address */
116 
117 #define CONFIG_SYS_MEMTEST_START		PHYS_SDRAM
118 #define CONFIG_SYS_MEMTEST_END			0x23e00000
119 
120 #ifdef CONFIG_SYS_USE_DATAFLASH
121 
122 /* bootstrap + u-boot + env + linux in dataflash on CS0 */
123 #define CONFIG_ENV_IS_IN_DATAFLASH	1
124 #define CONFIG_SYS_MONITOR_BASE	(CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 + 0x8400)
125 #define CONFIG_ENV_OFFSET		0x4200
126 #define CONFIG_ENV_ADDR		(CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 + CONFIG_ENV_OFFSET)
127 #define CONFIG_ENV_SIZE		0x4200
128 #define CONFIG_BOOTCOMMAND	"cp.b 0xC0042000 0x22000000 0x210000; bootm"
129 #define CONFIG_BOOTARGS		"console=ttyS0,115200 " \
130 				"root=/dev/mtdblock0 " \
131 				"mtdparts=at91_nand:-(root) "\
132 				"rw rootfstype=jffs2"
133 
134 #else /* CONFIG_SYS_USE_NANDFLASH */
135 
136 /* bootstrap + u-boot + env + linux in nandflash */
137 #define CONFIG_ENV_IS_IN_NAND	1
138 #define CONFIG_ENV_OFFSET		0x60000
139 #define CONFIG_ENV_OFFSET_REDUND	0x80000
140 #define CONFIG_ENV_SIZE		0x20000		/* 1 sector = 128 kB */
141 #define CONFIG_BOOTCOMMAND	"nand read 0x22000000 0xA0000 0x200000; bootm"
142 #define CONFIG_BOOTARGS		"console=ttyS0,115200 " \
143 				"root=/dev/mtdblock5 " \
144 				"mtdparts=at91_nand:128k(bootstrap)ro,256k(uboot)ro,128k(env1)ro,128k(env2)ro,2M(linux),-(root) " \
145 				"rw rootfstype=jffs2"
146 
147 #endif
148 
149 #define CONFIG_BAUDRATE		115200
150 #define CONFIG_SYS_BAUDRATE_TABLE	{115200 , 19200, 38400, 57600, 9600 }
151 
152 #define CONFIG_SYS_PROMPT		"U-Boot> "
153 #define CONFIG_SYS_CBSIZE		256
154 #define CONFIG_SYS_MAXARGS		16
155 #define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
156 #define CONFIG_SYS_LONGHELP		1
157 #define CONFIG_CMDLINE_EDITING	1
158 
159 #define ROUND(A, B)		(((A) + (B)) & ~((B) - 1))
160 /*
161  * Size of malloc() pool
162  */
163 #define CONFIG_SYS_MALLOC_LEN		ROUND(3 * CONFIG_ENV_SIZE + 128*1024, 0x1000)
164 #define CONFIG_SYS_GBL_DATA_SIZE	128	/* 128 bytes for initial data */
165 
166 #define CONFIG_STACKSIZE	(32*1024)	/* regular stack */
167 
168 #ifdef CONFIG_USE_IRQ
169 #error CONFIG_USE_IRQ not supported
170 #endif
171 
172 #endif
173