1 /*
2  * (C) Copyright 2007-2008
3  * Stelian Pop <stelian@popies.net>
4  * Lead Tech Design <www.leadtechdesign.com>
5  *
6  * Configuation settings for the AT91SAM9260EK & AT91SAM9G20EK boards.
7  *
8  * SPDX-License-Identifier:	GPL-2.0+
9  */
10 
11 #ifndef __CONFIG_H
12 #define __CONFIG_H
13 
14 /*
15  * SoC must be defined first, before hardware.h is included.
16  * In this case SoC is defined in boards.cfg.
17  */
18 #include <asm/hardware.h>
19 
20 /*
21  * Warning: changing CONFIG_SYS_TEXT_BASE requires
22  * adapting the initial boot program.
23  * Since the linker has to swallow that define, we must use a pure
24  * hex number here!
25  */
26 
27 /* ARM asynchronous clock */
28 #define CONFIG_SYS_AT91_SLOW_CLOCK	32768		/* slow clock xtal */
29 #define CONFIG_SYS_AT91_MAIN_CLOCK	18432000	/* main clock xtal */
30 
31 /* Define actual evaluation board type from used processor type */
32 #ifdef CONFIG_AT91SAM9G20
33 # define CONFIG_AT91SAM9G20EK	/* It's an Atmel AT91SAM9G20 EK */
34 #else
35 # define CONFIG_AT91SAM9260EK	/* It's an Atmel AT91SAM9260 EK */
36 #endif
37 
38 /* Misc CPU related */
39 #define CONFIG_ARCH_CPU_INIT
40 #define CONFIG_CMDLINE_TAG		/* enable passing of ATAGs */
41 #define CONFIG_SETUP_MEMORY_TAGS
42 #define CONFIG_INITRD_TAG
43 #define CONFIG_SKIP_LOWLEVEL_INIT
44 
45 /* general purpose I/O */
46 #define CONFIG_ATMEL_LEGACY		/* required until (g)pio is fixed */
47 
48 /*
49  * BOOTP options
50  */
51 #define CONFIG_BOOTP_BOOTFILESIZE	1
52 
53 /*
54  * SDRAM: 1 bank, min 32, max 128 MB
55  * Initialized before u-boot gets started.
56  */
57 #define CONFIG_NR_DRAM_BANKS		1
58 #define CONFIG_SYS_SDRAM_BASE		ATMEL_BASE_CS1
59 #define CONFIG_SYS_SDRAM_SIZE		0x04000000
60 
61 /*
62  * Initial stack pointer: 4k - GENERATED_GBL_DATA_SIZE in internal SRAM,
63  * leaving the correct space for initial global data structure above
64  * that address while providing maximum stack area below.
65  */
66 #ifdef CONFIG_AT91SAM9XE
67 # define CONFIG_SYS_INIT_SP_ADDR \
68 	(ATMEL_BASE_SRAM + 16 * 1024 - GENERATED_GBL_DATA_SIZE)
69 #else
70 # define CONFIG_SYS_INIT_SP_ADDR \
71 	(ATMEL_BASE_SRAM1 + 16 * 1024 - GENERATED_GBL_DATA_SIZE)
72 #endif
73 
74 /*
75  * The (arm)linux board id set by generic code depending on configured board
76  * (see boards.cfg for different boards)
77  */
78 #ifdef CONFIG_AT91SAM9G20
79 	/* the sam9g20 variants have two different board ids */
80 # ifdef CONFIG_AT91SAM9G20EK_2MMC
81 	/* we may be setup for the 2MMC variant of at91sam9g20ek */
82 #  define CONFIG_MACH_TYPE MACH_TYPE_AT91SAM9G20EK_2MMC
83 # else
84 	/* or the normal at91sam9g20ek */
85 #  define CONFIG_MACH_TYPE MACH_TYPE_AT91SAM9G20EK
86 # endif
87 #else
88 	/* otherwise default to good old at91sam9260ek */
89 # define CONFIG_MACH_TYPE MACH_TYPE_AT91SAM9260EK
90 #endif
91 
92 /* NAND flash */
93 #ifdef CONFIG_CMD_NAND
94 #define CONFIG_NAND_ATMEL
95 #define CONFIG_SYS_MAX_NAND_DEVICE	1
96 #define CONFIG_SYS_NAND_BASE		ATMEL_BASE_CS3
97 #define CONFIG_SYS_NAND_DBW_8
98 #define CONFIG_SYS_NAND_MASK_ALE	(1 << 21)
99 #define CONFIG_SYS_NAND_MASK_CLE	(1 << 22)
100 #define CONFIG_SYS_NAND_ENABLE_PIN	AT91_PIN_PC14
101 #define CONFIG_SYS_NAND_READY_PIN	AT91_PIN_PC13
102 #endif
103 
104 /* USB */
105 #define CONFIG_USB_ATMEL
106 #define CONFIG_USB_ATMEL_CLK_SEL_PLLB
107 #define CONFIG_USB_OHCI_NEW		1
108 #define CONFIG_SYS_USB_OHCI_CPU_INIT		1
109 #define CONFIG_SYS_USB_OHCI_REGS_BASE		0x00500000	/* AT91SAM9260_UHP_BASE */
110 #define CONFIG_SYS_USB_OHCI_SLOT_NAME		"at91sam9260"
111 #define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS	2
112 
113 #define CONFIG_SYS_LOAD_ADDR			0x22000000	/* load address */
114 
115 #define CONFIG_SYS_MEMTEST_START		CONFIG_SYS_SDRAM_BASE
116 #define CONFIG_SYS_MEMTEST_END			0x23e00000
117 
118 #ifdef CONFIG_SYS_USE_DATAFLASH_CS0
119 
120 /* bootstrap + u-boot + env + linux in dataflash on CS0 */
121 #define CONFIG_ENV_OFFSET	0x4200
122 #define CONFIG_ENV_SIZE		0x4200
123 #define CONFIG_ENV_SECT_SIZE	0x210
124 #define CONFIG_ENV_SPI_MAX_HZ	15000000
125 #define CONFIG_BOOTCOMMAND	"sf probe 0:0; " \
126 				"sf read 0x22000000 0x84000 0x294000; " \
127 				"bootm 0x22000000"
128 
129 #elif CONFIG_SYS_USE_DATAFLASH_CS1
130 
131 #define CONFIG_ENV_OFFSET	0x4200
132 #define CONFIG_ENV_SIZE		0x4200
133 #define CONFIG_ENV_SECT_SIZE	0x210
134 #define CONFIG_ENV_SPI_MAX_HZ	15000000
135 #define CONFIG_BOOTCOMMAND	"sf probe 0:1; " \
136 				"sf read 0x22000000 0x84000 0x294000; " \
137 				"bootm 0x22000000"
138 
139 #elif defined(CONFIG_SYS_USE_NANDFLASH)
140 
141 /* bootstrap + u-boot + env + linux in nandflash */
142 #define CONFIG_ENV_OFFSET		0x120000
143 #define CONFIG_ENV_OFFSET_REDUND	0x100000
144 #define CONFIG_ENV_SIZE		0x20000		/* 1 sector = 128 kB */
145 #define CONFIG_BOOTCOMMAND	"nand read 0x22000000 0x200000 0x300000; bootm"
146 
147 #else	/* CONFIG_SYS_USE_MMC */
148 /* bootstrap + u-boot + env + linux in mmc */
149 /* For FAT system, most cases it should be in the reserved sector */
150 #define CONFIG_ENV_OFFSET		0x2000
151 #define CONFIG_ENV_SIZE			0x1000
152 #define CONFIG_SYS_MMC_ENV_DEV		0
153 
154 #define CONFIG_BOOTCOMMAND						\
155 	"fatload mmc 0:1 0x22000000 uImage; bootm"
156 #endif
157 
158 /*
159  * Size of malloc() pool
160  */
161 #define CONFIG_SYS_MALLOC_LEN		ROUND(3 * CONFIG_ENV_SIZE + 128*1024, 0x1000)
162 
163 #endif
164