1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * (C) Copyright 2007-2008
4  * Stelian Pop <stelian@popies.net>
5  * Lead Tech Design <www.leadtechdesign.com>
6  *
7  * Configuation settings for the AT91SAM9260EK & AT91SAM9G20EK boards.
8  */
9 
10 #ifndef __CONFIG_H
11 #define __CONFIG_H
12 
13 /*
14  * SoC must be defined first, before hardware.h is included.
15  * In this case SoC is defined in boards.cfg.
16  */
17 #include <asm/hardware.h>
18 
19 /*
20  * Warning: changing CONFIG_SYS_TEXT_BASE requires
21  * adapting the initial boot program.
22  * Since the linker has to swallow that define, we must use a pure
23  * hex number here!
24  */
25 
26 /* ARM asynchronous clock */
27 #define CONFIG_SYS_AT91_SLOW_CLOCK	32768		/* slow clock xtal */
28 #define CONFIG_SYS_AT91_MAIN_CLOCK	18432000	/* main clock xtal */
29 
30 /* Define actual evaluation board type from used processor type */
31 #ifdef CONFIG_AT91SAM9G20
32 # define CONFIG_AT91SAM9G20EK	/* It's an Atmel AT91SAM9G20 EK */
33 #else
34 # define CONFIG_AT91SAM9260EK	/* It's an Atmel AT91SAM9260 EK */
35 #endif
36 
37 /* Misc CPU related */
38 #define CONFIG_ARCH_CPU_INIT
39 #define CONFIG_CMDLINE_TAG		/* enable passing of ATAGs */
40 #define CONFIG_SETUP_MEMORY_TAGS
41 #define CONFIG_INITRD_TAG
42 #define CONFIG_SKIP_LOWLEVEL_INIT
43 
44 /* general purpose I/O */
45 #define CONFIG_ATMEL_LEGACY		/* required until (g)pio is fixed */
46 
47 /*
48  * BOOTP options
49  */
50 #define CONFIG_BOOTP_BOOTFILESIZE	1
51 
52 /*
53  * SDRAM: 1 bank, min 32, max 128 MB
54  * Initialized before u-boot gets started.
55  */
56 #define CONFIG_NR_DRAM_BANKS		1
57 #define CONFIG_SYS_SDRAM_BASE		ATMEL_BASE_CS1
58 #define CONFIG_SYS_SDRAM_SIZE		0x04000000
59 
60 /*
61  * Initial stack pointer: 4k - GENERATED_GBL_DATA_SIZE in internal SRAM,
62  * leaving the correct space for initial global data structure above
63  * that address while providing maximum stack area below.
64  */
65 #ifdef CONFIG_AT91SAM9XE
66 # define CONFIG_SYS_INIT_SP_ADDR \
67 	(ATMEL_BASE_SRAM + 16 * 1024 - GENERATED_GBL_DATA_SIZE)
68 #else
69 # define CONFIG_SYS_INIT_SP_ADDR \
70 	(ATMEL_BASE_SRAM1 + 16 * 1024 - GENERATED_GBL_DATA_SIZE)
71 #endif
72 
73 /*
74  * The (arm)linux board id set by generic code depending on configured board
75  * (see boards.cfg for different boards)
76  */
77 #ifdef CONFIG_AT91SAM9G20
78 	/* the sam9g20 variants have two different board ids */
79 # ifdef CONFIG_AT91SAM9G20EK_2MMC
80 	/* we may be setup for the 2MMC variant of at91sam9g20ek */
81 #  define CONFIG_MACH_TYPE MACH_TYPE_AT91SAM9G20EK_2MMC
82 # else
83 	/* or the normal at91sam9g20ek */
84 #  define CONFIG_MACH_TYPE MACH_TYPE_AT91SAM9G20EK
85 # endif
86 #else
87 	/* otherwise default to good old at91sam9260ek */
88 # define CONFIG_MACH_TYPE MACH_TYPE_AT91SAM9260EK
89 #endif
90 
91 /* NAND flash */
92 #ifdef CONFIG_CMD_NAND
93 #define CONFIG_NAND_ATMEL
94 #define CONFIG_SYS_MAX_NAND_DEVICE	1
95 #define CONFIG_SYS_NAND_BASE		ATMEL_BASE_CS3
96 #define CONFIG_SYS_NAND_DBW_8
97 #define CONFIG_SYS_NAND_MASK_ALE	(1 << 21)
98 #define CONFIG_SYS_NAND_MASK_CLE	(1 << 22)
99 #define CONFIG_SYS_NAND_ENABLE_PIN	AT91_PIN_PC14
100 #define CONFIG_SYS_NAND_READY_PIN	AT91_PIN_PC13
101 #endif
102 
103 /* USB */
104 #define CONFIG_USB_ATMEL
105 #define CONFIG_USB_ATMEL_CLK_SEL_PLLB
106 #define CONFIG_USB_OHCI_NEW		1
107 #define CONFIG_SYS_USB_OHCI_CPU_INIT		1
108 #define CONFIG_SYS_USB_OHCI_REGS_BASE		0x00500000	/* AT91SAM9260_UHP_BASE */
109 #define CONFIG_SYS_USB_OHCI_SLOT_NAME		"at91sam9260"
110 #define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS	2
111 
112 #define CONFIG_SYS_LOAD_ADDR			0x22000000	/* load address */
113 
114 #define CONFIG_SYS_MEMTEST_START		CONFIG_SYS_SDRAM_BASE
115 #define CONFIG_SYS_MEMTEST_END			0x23e00000
116 
117 #ifdef CONFIG_SYS_USE_DATAFLASH_CS0
118 
119 /* bootstrap + u-boot + env + linux in dataflash on CS0 */
120 #define CONFIG_ENV_OFFSET	0x4200
121 #define CONFIG_ENV_SIZE		0x4200
122 #define CONFIG_ENV_SECT_SIZE	0x210
123 #define CONFIG_ENV_SPI_MAX_HZ	15000000
124 #define CONFIG_BOOTCOMMAND	"sf probe 0:0; " \
125 				"sf read 0x22000000 0x84000 0x294000; " \
126 				"bootm 0x22000000"
127 
128 #elif CONFIG_SYS_USE_DATAFLASH_CS1
129 
130 #define CONFIG_ENV_OFFSET	0x4200
131 #define CONFIG_ENV_SIZE		0x4200
132 #define CONFIG_ENV_SECT_SIZE	0x210
133 #define CONFIG_ENV_SPI_MAX_HZ	15000000
134 #define CONFIG_BOOTCOMMAND	"sf probe 0:1; " \
135 				"sf read 0x22000000 0x84000 0x294000; " \
136 				"bootm 0x22000000"
137 
138 #elif defined(CONFIG_SYS_USE_NANDFLASH)
139 
140 /* bootstrap + u-boot + env + linux in nandflash */
141 #define CONFIG_ENV_OFFSET		0x140000
142 #define CONFIG_ENV_OFFSET_REDUND	0x100000
143 #define CONFIG_ENV_SIZE		0x20000		/* 1 sector = 128 kB */
144 #define CONFIG_BOOTCOMMAND	"nand read 0x22000000 0x200000 0x300000; bootm"
145 
146 #else	/* CONFIG_SYS_USE_MMC */
147 /* bootstrap + u-boot + env + linux in mmc */
148 /* For FAT system, most cases it should be in the reserved sector */
149 #define CONFIG_ENV_OFFSET		0x2000
150 #define CONFIG_ENV_SIZE			0x1000
151 #define CONFIG_SYS_MMC_ENV_DEV		0
152 
153 #define CONFIG_BOOTCOMMAND						\
154 	"fatload mmc 0:1 0x22000000 uImage; bootm"
155 #endif
156 
157 /*
158  * Size of malloc() pool
159  */
160 #define CONFIG_SYS_MALLOC_LEN		ROUND(3 * CONFIG_ENV_SIZE + 128*1024, 0x1000)
161 
162 #endif
163