mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
180 lines
5.0 KiB
C
180 lines
5.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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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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#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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#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 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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/*
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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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/*
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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_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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/*
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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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/*
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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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