201 lines
5.6 KiB
C
201 lines
5.6 KiB
C
/*
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* Copyright (C) 2010 Andreas Bießmann <biessmann.devel@googlemail.com>
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*
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* based on previous work by
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*
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* Ulf Samuelsson <ulf@atmel.com>
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* Rick Bronson <rick@efn.org>
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*
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* Configuration settings for the AT91RM9200EK board.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __AT91RM9200EK_CONFIG_H__
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#define __AT91RM9200EK_CONFIG_H__
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#include <linux/sizes.h>
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/*
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* set some initial configurations depending on configure target
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*
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* at91rm9200ek_config -> boot from 0x0 in NOR Flash at CS0
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* at91rm9200ek_ram_config -> continue booting from 0x20100000 in RAM; lowlevel
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* initialisation was done by some preloader
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*/
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#ifdef CONFIG_RAMBOOT
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#define CONFIG_SKIP_LOWLEVEL_INIT
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#define CONFIG_SYS_TEXT_BASE 0x20100000
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#else
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#define CONFIG_SYS_TEXT_BASE 0x10000000
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#endif
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/*
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* AT91C_XTAL_CLOCK is the frequency of external xtal in hertz
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* AT91C_MAIN_CLOCK is the frequency of PLLA output
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* AT91C_MASTER_CLOCK is the peripherial clock
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* CONFIG_SYS_HZ_CLOCK is the value for CCR in tc0 (divider 2 is implicitely
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* set in arch/arm/cpu/arm920t/at91/timer.c)
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* CONFIG_SYS_HZ is the tick rate for timer tc0
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*/
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#define AT91C_XTAL_CLOCK 18432000
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#define CONFIG_SYS_AT91_SLOW_CLOCK 32768
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#define AT91C_MAIN_CLOCK ((AT91C_XTAL_CLOCK / 4) * 39)
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#define AT91C_MASTER_CLOCK (AT91C_MAIN_CLOCK / 3 )
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#define CONFIG_SYS_HZ_CLOCK (AT91C_MASTER_CLOCK / 2)
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/* CPU configuration */
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#define CONFIG_AT91RM9200
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#define CONFIG_AT91RM9200EK
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#define CONFIG_CPUAT91
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#define USE_920T_MMU
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#include <asm/hardware.h> /* needed for port definitions */
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#define CONFIG_CMDLINE_TAG
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#define CONFIG_SETUP_MEMORY_TAGS
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#define CONFIG_INITRD_TAG
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#define CONFIG_BOARD_EARLY_INIT_F
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/*
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* Memory Configuration
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*/
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#define CONFIG_NR_DRAM_BANKS 1
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#define CONFIG_SYS_SDRAM_BASE 0x20000000
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#define CONFIG_SYS_SDRAM_SIZE SZ_32M
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#define CONFIG_SYS_MEMTEST_START CONFIG_SYS_SDRAM_BASE
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#define CONFIG_SYS_MEMTEST_END \
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(CONFIG_SYS_MEMTEST_START + CONFIG_SYS_SDRAM_SIZE - SZ_256K)
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/*
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* LowLevel Init
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*/
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#ifndef CONFIG_SKIP_LOWLEVEL_INIT
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#define CONFIG_SYS_USE_MAIN_OSCILLATOR
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/* flash */
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#define CONFIG_SYS_EBI_CFGR_VAL 0x00000000
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#define CONFIG_SYS_SMC_CSR0_VAL 0x00003284 /* 16bit, 2 TDF, 4 WS */
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/* clocks */
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#define CONFIG_SYS_PLLAR_VAL 0x20263E04 /* 179.712000 MHz for PCK */
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#define CONFIG_SYS_PLLBR_VAL 0x10483E0E /* 48.054857 MHz (divider by 2 for USB) */
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/* PCK/3 = MCK Master Clock = 59.904000MHz from PLLA */
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#define CONFIG_SYS_MCKR_VAL 0x00000202
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/* sdram */
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#define CONFIG_SYS_PIOC_ASR_VAL 0xFFFF0000 /* Configure PIOC as peripheral (D16/D31) */
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#define CONFIG_SYS_PIOC_BSR_VAL 0x00000000
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#define CONFIG_SYS_PIOC_PDR_VAL 0xFFFF0000
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#define CONFIG_SYS_EBI_CSA_VAL 0x00000002 /* CS1=CONFIG_SYS_SDRAM */
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#define CONFIG_SYS_SDRC_CR_VAL 0x2188c155 /* set up the CONFIG_SYS_SDRAM */
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#define CONFIG_SYS_SDRAM CONFIG_SYS_SDRAM_BASE /* address of the SDRAM */
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#define CONFIG_SYS_SDRAM1 (CONFIG_SYS_SDRAM_BASE+0x80)
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#define CONFIG_SYS_SDRAM_VAL 0x00000000 /* value written to CONFIG_SYS_SDRAM */
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#define CONFIG_SYS_SDRC_MR_VAL 0x00000002 /* Precharge All */
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#define CONFIG_SYS_SDRC_MR_VAL1 0x00000004 /* refresh */
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#define CONFIG_SYS_SDRC_MR_VAL2 0x00000003 /* Load Mode Register */
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#define CONFIG_SYS_SDRC_MR_VAL3 0x00000000 /* Normal Mode */
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#define CONFIG_SYS_SDRC_TR_VAL 0x000002E0 /* Write refresh rate */
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#endif /* CONFIG_SKIP_LOWLEVEL_INIT */
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/*
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* Hardware drivers
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*/
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/*
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* Choose a USART for serial console
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* CONFIG_DBGU is DBGU unit on J10
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* CONFIG_USART1 is USART1 on J14
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*/
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#define CONFIG_ATMEL_USART
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#define CONFIG_USART_BASE ATMEL_BASE_DBGU
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#define CONFIG_USART_ID 0/* ignored in arm */
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#define CONFIG_BAUDRATE 115200
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/*
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* Command line configuration.
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*/
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/*
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* Network Driver Setting
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*/
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#define CONFIG_DRIVER_AT91EMAC
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#define CONFIG_SYS_RX_ETH_BUFFER 16
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#define CONFIG_RMII
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#define CONFIG_MII
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/*
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* NOR Flash
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*/
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#define CONFIG_FLASH_CFI_DRIVER
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#define CONFIG_SYS_FLASH_CFI
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#define CONFIG_SYS_FLASH_BASE 0x10000000
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#define PHYS_FLASH_1 CONFIG_SYS_FLASH_BASE
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#define PHYS_FLASH_SIZE SZ_8M
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#define CONFIG_SYS_MAX_FLASH_BANKS 1
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#define CONFIG_SYS_MAX_FLASH_SECT 256
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#define CONFIG_SYS_FLASH_PROTECTION
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/*
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* USB Config
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*/
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#define CONFIG_USB_ATMEL 1
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#define CONFIG_USB_ATMEL_CLK_SEL_PLLB
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#define CONFIG_USB_OHCI_NEW 1
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#define CONFIG_USB_KEYBOARD 1
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#define CONFIG_USB_STORAGE 1
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#define CONFIG_DOS_PARTITION 1
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#define CONFIG_SYS_USB_OHCI_CPU_INIT 1
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#define CONFIG_SYS_USB_OHCI_REGS_BASE ATMEL_USB_HOST_BASE
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#define CONFIG_SYS_USB_OHCI_SLOT_NAME "at91rm9200"
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#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 15
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/*
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* Environment Settings
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*/
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#define CONFIG_ENV_IS_IN_FLASH
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/*
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* after u-boot.bin
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*/
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#define CONFIG_ENV_ADDR \
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(CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN)
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#define CONFIG_ENV_SIZE SZ_64K /* sectors are 64K here */
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/* The following #defines are needed to get flash environment right */
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#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
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#define CONFIG_SYS_MONITOR_LEN SZ_256K
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/*
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* Boot option
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*/
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/* default load address */
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#define CONFIG_SYS_LOAD_ADDR CONFIG_SYS_SDRAM_BASE + SZ_16M
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#define CONFIG_ENV_OVERWRITE
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/*
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* Shell Settings
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*/
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#define CONFIG_CMDLINE_EDITING
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#define CONFIG_SYS_LONGHELP
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#define CONFIG_AUTO_COMPLETE
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#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
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#define CONFIG_SYS_MAXARGS 16 /* max number of command args */
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/* Print Buffer Size */
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#define CONFIG_SYS_PBSIZE \
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(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
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/*
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* Size of malloc() pool
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*/
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#define CONFIG_SYS_MALLOC_LEN ROUND(3 * CONFIG_ENV_SIZE + SZ_128K, \
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SZ_4K)
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#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + SZ_4K \
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- GENERATED_GBL_DATA_SIZE)
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#endif /* __AT91RM9200EK_CONFIG_H__ */
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