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/*
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* (C) Copyright 2012,2015 Stephen Warren |
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* |
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* SPDX-License-Identifier: GPL-2.0 |
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*/ |
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#ifndef _RPI_COMMON_H_ |
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#define _RPI_COMMON_H_ |
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#include <linux/sizes.h> |
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/* Architecture, CPU, etc.*/ |
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#define CONFIG_SYS_GENERIC_BOARD |
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#define CONFIG_BCM2835 |
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#define CONFIG_ARCH_CPU_INIT |
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#define CONFIG_SYS_DCACHE_OFF |
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/*
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* 2835 is a SKU in a series for which the 2708 is the first or primary SoC, |
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* so 2708 has historically been used rather than a dedicated 2835 ID. |
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* |
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* We don't define a machine type for bcm2709/bcm2836 since the RPi Foundation |
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* chose to use someone else's previously registered machine ID (3139, MX51_GGC) |
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* rather than obtaining a valid ID:-/ |
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*/ |
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#ifndef CONFIG_BCM2836 |
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#define CONFIG_MACH_TYPE MACH_TYPE_BCM2708 |
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#endif |
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/* Memory layout */ |
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#define CONFIG_NR_DRAM_BANKS 1 |
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#define CONFIG_SYS_SDRAM_BASE 0x00000000 |
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#define CONFIG_SYS_TEXT_BASE 0x00008000 |
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#define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE |
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/*
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* The board really has 256M. However, the VC (VideoCore co-processor) shares |
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* the RAM, and uses a configurable portion at the top. We tell U-Boot that a |
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* smaller amount of RAM is present in order to avoid stomping on the area |
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* the VC uses. |
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*/ |
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#define CONFIG_SYS_SDRAM_SIZE SZ_128M |
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#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \ |
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CONFIG_SYS_SDRAM_SIZE - \
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GENERATED_GBL_DATA_SIZE) |
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#define CONFIG_SYS_MALLOC_LEN SZ_4M |
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#define CONFIG_SYS_MEMTEST_START 0x00100000 |
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#define CONFIG_SYS_MEMTEST_END 0x00200000 |
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#define CONFIG_LOADADDR 0x00200000 |
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/* Flash */ |
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#define CONFIG_SYS_NO_FLASH |
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/* Devices */ |
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/* GPIO */ |
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#define CONFIG_BCM2835_GPIO |
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/* LCD */ |
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#define CONFIG_LCD |
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#define CONFIG_LCD_DT_SIMPLEFB |
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#define LCD_BPP LCD_COLOR16 |
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/*
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* Prevent allocation of RAM for FB; the real FB address is queried |
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* dynamically from the VideoCore co-processor, and comes from RAM |
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* not owned by the ARM CPU. |
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*/ |
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#define CONFIG_FB_ADDR 0 |
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#define CONFIG_VIDEO_BCM2835 |
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#define CONFIG_SYS_WHITE_ON_BLACK |
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/* SD/MMC configuration */ |
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#define CONFIG_GENERIC_MMC |
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#define CONFIG_MMC |
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#define CONFIG_SDHCI |
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#define CONFIG_MMC_SDHCI_IO_ACCESSORS |
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#define CONFIG_BCM2835_SDHCI |
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#define CONFIG_CMD_USB |
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#ifdef CONFIG_CMD_USB |
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#define CONFIG_USB_DWC2 |
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#ifdef CONFIG_BCM2836 |
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#define CONFIG_USB_DWC2_REG_ADDR 0x3f980000 |
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#else |
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#define CONFIG_USB_DWC2_REG_ADDR 0x20980000 |
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#endif |
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#define CONFIG_USB_STORAGE |
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#define CONFIG_USB_HOST_ETHER |
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#define CONFIG_USB_ETHER_SMSC95XX |
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#define CONFIG_MISC_INIT_R |
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#endif |
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/* Console UART */ |
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#define CONFIG_PL01X_SERIAL |
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#define CONFIG_CONS_INDEX 0 |
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#define CONFIG_BAUDRATE 115200 |
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/* Console configuration */ |
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#define CONFIG_SYS_CBSIZE 1024 |
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#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \ |
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sizeof(CONFIG_SYS_PROMPT) + 16) |
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/* Environment */ |
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#define CONFIG_ENV_SIZE SZ_16K |
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#define CONFIG_ENV_IS_IN_FAT |
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#define FAT_ENV_INTERFACE "mmc" |
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#define FAT_ENV_DEVICE_AND_PART "0:1" |
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#define FAT_ENV_FILE "uboot.env" |
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#define CONFIG_FAT_WRITE |
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#define CONFIG_ENV_VARS_UBOOT_CONFIG |
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#define CONFIG_SYS_LOAD_ADDR 0x1000000 |
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#define CONFIG_CONSOLE_MUX |
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#define CONFIG_SYS_CONSOLE_IS_IN_ENV |
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/* Shell */ |
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#define CONFIG_SYS_MAXARGS 8 |
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#define CONFIG_SYS_PROMPT "U-Boot> " |
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#define CONFIG_COMMAND_HISTORY |
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/* Commands */ |
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#include <config_cmd_default.h> |
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#define CONFIG_CMD_GPIO |
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#define CONFIG_CMD_MMC |
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#define CONFIG_PARTITION_UUIDS |
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#define CONFIG_CMD_PART |
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/* Device tree support */ |
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#define CONFIG_OF_BOARD_SETUP |
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/* ATAGs support for bootm/bootz */ |
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#define CONFIG_SETUP_MEMORY_TAGS |
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#define CONFIG_CMDLINE_TAG |
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#define CONFIG_INITRD_TAG |
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#include <config_distro_defaults.h> |
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/* Some things don't make sense on this HW or yet */ |
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#undef CONFIG_CMD_FPGA |
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/* Environment */ |
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#define ENV_DEVICE_SETTINGS \ |
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"stdin=serial,lcd\0" \
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"stdout=serial,lcd\0" \
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"stderr=serial,lcd\0" |
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/*
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* Memory layout for where various images get loaded by boot scripts: |
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* |
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* scriptaddr can be pretty much anywhere that doesn't conflict with something |
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* else. Put it low in memory to avoid conflicts. |
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* |
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* pxefile_addr_r can be pretty much anywhere that doesn't conflict with |
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* something else. Put it low in memory to avoid conflicts. |
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* |
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* kernel_addr_r must be within the first 128M of RAM in order for the |
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* kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will |
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* decompress itself to 0x8000 after the start of RAM, kernel_addr_r |
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* should not overlap that area, or the kernel will have to copy itself |
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* somewhere else before decompression. Similarly, the address of any other |
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* data passed to the kernel shouldn't overlap the start of RAM. Pushing |
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* this up to 16M allows for a sizable kernel to be decompressed below the |
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* compressed load address. |
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* |
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* fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for |
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* the compressed kernel to be up to 16M too. |
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* |
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* ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows |
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* for the FDT/DTB to be up to 1M, which is hopefully plenty. |
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*/ |
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#define ENV_MEM_LAYOUT_SETTINGS \ |
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"scriptaddr=0x00000000\0" \
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"pxefile_addr_r=0x00100000\0" \
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"kernel_addr_r=0x01000000\0" \
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"fdt_addr_r=0x02000000\0" \
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"ramdisk_addr_r=0x02100000\0" \
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#define BOOT_TARGET_DEVICES(func) \ |
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func(MMC, mmc, 0) \
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func(USB, usb, 0) \
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func(PXE, pxe, na) \
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func(DHCP, dhcp, na) |
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#include <config_distro_bootcmd.h> |
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#define CONFIG_EXTRA_ENV_SETTINGS \ |
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ENV_DEVICE_SETTINGS \
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ENV_MEM_LAYOUT_SETTINGS \
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BOOTENV |
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#define CONFIG_BOOTDELAY 2 |
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#endif |