1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright (C) 2010 Andreas Bießmann <biessmann.devel@googlemail.com>
5 * based on previous work by
7 * Ulf Samuelsson <ulf@atmel.com>
8 * Rick Bronson <rick@efn.org>
10 * Configuration settings for the AT91RM9200EK board.
13 #ifndef __AT91RM9200EK_CONFIG_H__
14 #define __AT91RM9200EK_CONFIG_H__
16 #include <linux/sizes.h>
19 * set some initial configurations depending on configure target
21 * at91rm9200ek_config -> boot from 0x0 in NOR Flash at CS0
22 * at91rm9200ek_ram_config -> continue booting from 0x20100000 in RAM; lowlevel
23 * initialisation was done by some preloader
26 #define CONFIG_SKIP_LOWLEVEL_INIT
30 * AT91C_XTAL_CLOCK is the frequency of external xtal in hertz
31 * AT91C_MAIN_CLOCK is the frequency of PLLA output
32 * AT91C_MASTER_CLOCK is the peripherial clock
33 * CONFIG_SYS_HZ_CLOCK is the value for CCR in tc0 (divider 2 is implicitely
34 * set in arch/arm/cpu/arm920t/at91/timer.c)
35 * CONFIG_SYS_HZ is the tick rate for timer tc0
37 #define AT91C_XTAL_CLOCK 18432000
38 #define CONFIG_SYS_AT91_SLOW_CLOCK 32768
39 #define AT91C_MAIN_CLOCK ((AT91C_XTAL_CLOCK / 4) * 39)
40 #define AT91C_MASTER_CLOCK (AT91C_MAIN_CLOCK / 3 )
41 #define CONFIG_SYS_HZ_CLOCK (AT91C_MASTER_CLOCK / 2)
43 /* CPU configuration */
44 #define CONFIG_AT91RM9200
45 #define CONFIG_AT91RM9200EK
48 #include <asm/hardware.h> /* needed for port definitions */
50 #define CONFIG_CMDLINE_TAG
51 #define CONFIG_SETUP_MEMORY_TAGS
52 #define CONFIG_INITRD_TAG
55 * Memory Configuration
57 #define CONFIG_SYS_SDRAM_BASE 0x20000000
58 #define CONFIG_SYS_SDRAM_SIZE SZ_32M
60 #define CONFIG_SYS_MEMTEST_START CONFIG_SYS_SDRAM_BASE
61 #define CONFIG_SYS_MEMTEST_END \
62 (CONFIG_SYS_MEMTEST_START + CONFIG_SYS_SDRAM_SIZE - SZ_256K)
67 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
68 #define CONFIG_SYS_USE_MAIN_OSCILLATOR
70 #define CONFIG_SYS_EBI_CFGR_VAL 0x00000000
71 #define CONFIG_SYS_SMC_CSR0_VAL 0x00003284 /* 16bit, 2 TDF, 4 WS */
74 #define CONFIG_SYS_PLLAR_VAL 0x20263E04 /* 179.712000 MHz for PCK */
75 #define CONFIG_SYS_PLLBR_VAL 0x10483E0E /* 48.054857 MHz (divider by 2 for USB) */
76 /* PCK/3 = MCK Master Clock = 59.904000MHz from PLLA */
77 #define CONFIG_SYS_MCKR_VAL 0x00000202
80 #define CONFIG_SYS_PIOC_ASR_VAL 0xFFFF0000 /* Configure PIOC as peripheral (D16/D31) */
81 #define CONFIG_SYS_PIOC_BSR_VAL 0x00000000
82 #define CONFIG_SYS_PIOC_PDR_VAL 0xFFFF0000
83 #define CONFIG_SYS_EBI_CSA_VAL 0x00000002 /* CS1=CONFIG_SYS_SDRAM */
84 #define CONFIG_SYS_SDRC_CR_VAL 0x2188c155 /* set up the CONFIG_SYS_SDRAM */
85 #define CONFIG_SYS_SDRAM CONFIG_SYS_SDRAM_BASE /* address of the SDRAM */
86 #define CONFIG_SYS_SDRAM1 (CONFIG_SYS_SDRAM_BASE+0x80)
87 #define CONFIG_SYS_SDRAM_VAL 0x00000000 /* value written to CONFIG_SYS_SDRAM */
88 #define CONFIG_SYS_SDRC_MR_VAL 0x00000002 /* Precharge All */
89 #define CONFIG_SYS_SDRC_MR_VAL1 0x00000004 /* refresh */
90 #define CONFIG_SYS_SDRC_MR_VAL2 0x00000003 /* Load Mode Register */
91 #define CONFIG_SYS_SDRC_MR_VAL3 0x00000000 /* Normal Mode */
92 #define CONFIG_SYS_SDRC_TR_VAL 0x000002E0 /* Write refresh rate */
93 #endif /* CONFIG_SKIP_LOWLEVEL_INIT */
99 * Choose a USART for serial console
100 * CONFIG_DBGU is DBGU unit on J10
101 * CONFIG_USART1 is USART1 on J14
103 #define CONFIG_ATMEL_USART
104 #define CONFIG_USART_BASE ATMEL_BASE_DBGU
105 #define CONFIG_USART_ID 0/* ignored in arm */
108 * Command line configuration.
112 * Network Driver Setting
114 #define CONFIG_DRIVER_AT91EMAC
115 #define CONFIG_SYS_RX_ETH_BUFFER 16
121 #define CONFIG_SYS_FLASH_BASE 0x10000000
122 #define PHYS_FLASH_1 CONFIG_SYS_FLASH_BASE
123 #define PHYS_FLASH_SIZE SZ_8M
124 #define CONFIG_SYS_MAX_FLASH_BANKS 1
125 #define CONFIG_SYS_MAX_FLASH_SECT 256
130 #define CONFIG_USB_ATMEL 1
131 #define CONFIG_USB_ATMEL_CLK_SEL_PLLB
132 #define CONFIG_USB_OHCI_NEW 1
134 #define CONFIG_SYS_USB_OHCI_CPU_INIT 1
135 #define CONFIG_SYS_USB_OHCI_REGS_BASE ATMEL_USB_HOST_BASE
136 #define CONFIG_SYS_USB_OHCI_SLOT_NAME "at91rm9200"
137 #define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 15
140 * Environment Settings
146 #define CONFIG_ENV_ADDR \
147 (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN)
148 #define CONFIG_ENV_SIZE SZ_64K /* sectors are 64K here */
149 /* The following #defines are needed to get flash environment right */
150 #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
151 #define CONFIG_SYS_MONITOR_LEN SZ_256K
157 /* default load address */
158 #define CONFIG_SYS_LOAD_ADDR CONFIG_SYS_SDRAM_BASE + SZ_16M
159 #define CONFIG_ENV_OVERWRITE
166 * Size of malloc() pool
168 #define CONFIG_SYS_MALLOC_LEN ROUND(3 * CONFIG_ENV_SIZE + SZ_128K, \
171 #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + SZ_4K \
172 - GENERATED_GBL_DATA_SIZE)
174 #endif /* __AT91RM9200EK_CONFIG_H__ */