1 /*
2  * Copyright (C) 2010 Andreas Bießmann <biessmann.devel@googlemail.com>
3  *
4  * based on previous work by
5  *
6  * Ulf Samuelsson <ulf@atmel.com>
7  * Rick Bronson <rick@efn.org>
8  *
9  * Configuration settings for the AT91RM9200EK board.
10  *
11  * SPDX-License-Identifier:	GPL-2.0+
12  */
13 
14 #ifndef __AT91RM9200EK_CONFIG_H__
15 #define __AT91RM9200EK_CONFIG_H__
16 
17 #include <linux/sizes.h>
18 
19 /*
20  * set some initial configurations depending on configure target
21  *
22  * at91rm9200ek_config     -> boot from 0x0 in NOR Flash at CS0
23  * at91rm9200ek_ram_config -> continue booting from 0x20100000 in RAM; lowlevel
24  *                            initialisation was done by some preloader
25  */
26 #ifdef CONFIG_RAMBOOT
27 #define CONFIG_SKIP_LOWLEVEL_INIT
28 #define CONFIG_SYS_TEXT_BASE 0x20100000
29 #else
30 #define CONFIG_SYS_TEXT_BASE 0x10000000
31 #endif
32 
33 /*
34  * AT91C_XTAL_CLOCK is the frequency of external xtal in hertz
35  * AT91C_MAIN_CLOCK is the frequency of PLLA output
36  * AT91C_MASTER_CLOCK is the peripherial clock
37  * CONFIG_SYS_HZ_CLOCK is the value for CCR in tc0 (divider 2 is implicitely
38  *  set in arch/arm/cpu/arm920t/at91/timer.c)
39  * CONFIG_SYS_HZ is the tick rate for timer tc0
40  */
41 #define AT91C_XTAL_CLOCK		18432000
42 #define CONFIG_SYS_AT91_SLOW_CLOCK	32768
43 #define AT91C_MAIN_CLOCK		((AT91C_XTAL_CLOCK / 4) * 39)
44 #define AT91C_MASTER_CLOCK		(AT91C_MAIN_CLOCK / 3 )
45 #define CONFIG_SYS_HZ_CLOCK		(AT91C_MASTER_CLOCK / 2)
46 
47 /* CPU configuration */
48 #define CONFIG_AT91RM9200
49 #define CONFIG_AT91RM9200EK
50 #define CONFIG_CPUAT91
51 #define USE_920T_MMU
52 
53 #include <asm/hardware.h>	/* needed for port definitions */
54 
55 #define CONFIG_CMDLINE_TAG
56 #define CONFIG_SETUP_MEMORY_TAGS
57 #define CONFIG_INITRD_TAG
58 
59 /*
60  * Memory Configuration
61  */
62 #define CONFIG_NR_DRAM_BANKS		1
63 #define CONFIG_SYS_SDRAM_BASE		0x20000000
64 #define CONFIG_SYS_SDRAM_SIZE		SZ_32M
65 
66 #define CONFIG_SYS_MEMTEST_START	CONFIG_SYS_SDRAM_BASE
67 #define CONFIG_SYS_MEMTEST_END		\
68 		(CONFIG_SYS_MEMTEST_START + CONFIG_SYS_SDRAM_SIZE - SZ_256K)
69 
70 /*
71  * LowLevel Init
72  */
73 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
74 #define CONFIG_SYS_USE_MAIN_OSCILLATOR
75 /* flash */
76 #define CONFIG_SYS_EBI_CFGR_VAL	0x00000000
77 #define CONFIG_SYS_SMC_CSR0_VAL	0x00003284 /* 16bit, 2 TDF, 4 WS */
78 
79 /* clocks */
80 #define CONFIG_SYS_PLLAR_VAL	0x20263E04 /* 179.712000 MHz for PCK */
81 #define CONFIG_SYS_PLLBR_VAL	0x10483E0E /* 48.054857 MHz (divider by 2 for USB) */
82 /* PCK/3 = MCK Master Clock = 59.904000MHz from PLLA */
83 #define CONFIG_SYS_MCKR_VAL	0x00000202
84 
85 /* sdram */
86 #define CONFIG_SYS_PIOC_ASR_VAL	0xFFFF0000 /* Configure PIOC as peripheral (D16/D31) */
87 #define CONFIG_SYS_PIOC_BSR_VAL	0x00000000
88 #define CONFIG_SYS_PIOC_PDR_VAL	0xFFFF0000
89 #define CONFIG_SYS_EBI_CSA_VAL	0x00000002 /* CS1=CONFIG_SYS_SDRAM */
90 #define CONFIG_SYS_SDRC_CR_VAL	0x2188c155 /* set up the CONFIG_SYS_SDRAM */
91 #define CONFIG_SYS_SDRAM	CONFIG_SYS_SDRAM_BASE /* address of the SDRAM */
92 #define CONFIG_SYS_SDRAM1	(CONFIG_SYS_SDRAM_BASE+0x80)
93 #define CONFIG_SYS_SDRAM_VAL	0x00000000 /* value written to CONFIG_SYS_SDRAM */
94 #define CONFIG_SYS_SDRC_MR_VAL	0x00000002 /* Precharge All */
95 #define CONFIG_SYS_SDRC_MR_VAL1	0x00000004 /* refresh */
96 #define CONFIG_SYS_SDRC_MR_VAL2	0x00000003 /* Load Mode Register */
97 #define CONFIG_SYS_SDRC_MR_VAL3	0x00000000 /* Normal Mode */
98 #define CONFIG_SYS_SDRC_TR_VAL	0x000002E0 /* Write refresh rate */
99 #endif	/* CONFIG_SKIP_LOWLEVEL_INIT */
100 
101 /*
102  * Hardware drivers
103  */
104 /*
105  * Choose a USART for serial console
106  * CONFIG_DBGU is DBGU unit on J10
107  * CONFIG_USART1 is USART1 on J14
108  */
109 #define CONFIG_ATMEL_USART
110 #define CONFIG_USART_BASE	ATMEL_BASE_DBGU
111 #define CONFIG_USART_ID		0/* ignored in arm */
112 
113 /*
114  * Command line configuration.
115  */
116 
117 /*
118  * Network Driver Setting
119  */
120 #define CONFIG_DRIVER_AT91EMAC
121 #define CONFIG_SYS_RX_ETH_BUFFER	16
122 #define CONFIG_RMII
123 #define CONFIG_MII
124 
125 /*
126  * NOR Flash
127  */
128 #define CONFIG_FLASH_CFI_DRIVER
129 #define CONFIG_SYS_FLASH_CFI
130 #define CONFIG_SYS_FLASH_BASE		0x10000000
131 #define PHYS_FLASH_1			CONFIG_SYS_FLASH_BASE
132 #define PHYS_FLASH_SIZE			SZ_8M
133 #define CONFIG_SYS_MAX_FLASH_BANKS	1
134 #define CONFIG_SYS_MAX_FLASH_SECT	256
135 #define CONFIG_SYS_FLASH_PROTECTION
136 
137 /*
138  * USB Config
139  */
140 #define CONFIG_USB_ATMEL			1
141 #define CONFIG_USB_ATMEL_CLK_SEL_PLLB
142 #define CONFIG_USB_OHCI_NEW			1
143 
144 #define CONFIG_SYS_USB_OHCI_CPU_INIT		1
145 #define CONFIG_SYS_USB_OHCI_REGS_BASE		ATMEL_USB_HOST_BASE
146 #define CONFIG_SYS_USB_OHCI_SLOT_NAME		"at91rm9200"
147 #define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS	15
148 
149 /*
150  * Environment Settings
151  */
152 #define CONFIG_ENV_IS_IN_FLASH
153 
154 /*
155  * after u-boot.bin
156  */
157 #define CONFIG_ENV_ADDR			\
158 		(CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN)
159 #define CONFIG_ENV_SIZE			SZ_64K /* sectors are 64K here */
160 /* The following #defines are needed to get flash environment right */
161 #define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_FLASH_BASE
162 #define CONFIG_SYS_MONITOR_LEN		SZ_256K
163 
164 /*
165  * Boot option
166  */
167 
168 /* default load address */
169 #define CONFIG_SYS_LOAD_ADDR		CONFIG_SYS_SDRAM_BASE + SZ_16M
170 #define CONFIG_ENV_OVERWRITE
171 
172 /*
173  * Shell Settings
174  */
175 #define CONFIG_CMDLINE_EDITING
176 #define CONFIG_SYS_LONGHELP
177 #define CONFIG_AUTO_COMPLETE
178 #define CONFIG_SYS_CBSIZE		256	/* Console I/O Buffer Size */
179 #define CONFIG_SYS_MAXARGS		16	/* max number of command args */
180 /* Print Buffer Size */
181 #define CONFIG_SYS_PBSIZE		\
182 		(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
183 
184 /*
185  * Size of malloc() pool
186  */
187 #define CONFIG_SYS_MALLOC_LEN		ROUND(3 * CONFIG_ENV_SIZE + SZ_128K, \
188 					     SZ_4K)
189 
190 #define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_SDRAM_BASE + SZ_4K \
191 					- GENERATED_GBL_DATA_SIZE)
192 
193 #endif /* __AT91RM9200EK_CONFIG_H__ */
194