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Diffstat (limited to 'include/configs/rpi.h')
| -rw-r--r-- | include/configs/rpi.h | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/include/configs/rpi.h b/include/configs/rpi.h deleted file mode 100644 index 77d2d54..0000000 --- a/include/configs/rpi.h +++ /dev/null @@ -1,192 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * (C) Copyright 2012-2016 Stephen Warren - */ - -#ifndef __CONFIG_H -#define __CONFIG_H - -#include <linux/sizes.h> -#include <asm/arch/timer.h> - -#if defined(CONFIG_TARGET_RPI_2) || defined(CONFIG_TARGET_RPI_3_32B) -#define CONFIG_SKIP_LOWLEVEL_INIT -#endif - -/* Architecture, CPU, etc.*/ - -/* Use SoC timer for AArch32, but architected timer for AArch64 */ -#ifndef CONFIG_ARM64 -#define CONFIG_SYS_TIMER_RATE 1000000 -#define CONFIG_SYS_TIMER_COUNTER \ - (&((struct bcm2835_timer_regs *)BCM2835_TIMER_PHYSADDR)->clo) -#endif - -/* - * 2835 is a SKU in a series for which the 2708 is the first or primary SoC, - * so 2708 has historically been used rather than a dedicated 2835 ID. - * - * We don't define a machine type for bcm2709/bcm2836 since the RPi Foundation - * chose to use someone else's previously registered machine ID (3139, MX51_GGC) - * rather than obtaining a valid ID:-/ - * - * For the bcm2837, hopefully a machine type is not needed, since everything - * is DT. - */ -#ifdef CONFIG_BCM2835 -#define CONFIG_MACH_TYPE MACH_TYPE_BCM2708 -#endif - -/* Memory layout */ -#define CONFIG_SYS_SDRAM_BASE 0x00000000 -#define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE -/* - * The board really has 256M. However, the VC (VideoCore co-processor) shares - * the RAM, and uses a configurable portion at the top. We tell U-Boot that a - * smaller amount of RAM is present in order to avoid stomping on the area - * the VC uses. - */ -#define CONFIG_SYS_SDRAM_SIZE SZ_128M -#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \ - CONFIG_SYS_SDRAM_SIZE - \ - GENERATED_GBL_DATA_SIZE) -#define CONFIG_SYS_MALLOC_LEN SZ_4M -#define CONFIG_SYS_MEMTEST_START 0x00100000 -#define CONFIG_SYS_MEMTEST_END 0x00200000 -#define CONFIG_LOADADDR 0x00200000 - -#ifdef CONFIG_ARM64 -#define CONFIG_SYS_BOOTM_LEN SZ_64M -#endif - -/* Devices */ -/* GPIO */ -#define CONFIG_BCM2835_GPIO -/* LCD */ -#define CONFIG_LCD_DT_SIMPLEFB -#define CONFIG_VIDEO_BCM2835 - -#ifdef CONFIG_CMD_USB -#define CONFIG_TFTP_TSIZE -#endif - -/* Console configuration */ -#define CONFIG_SYS_CBSIZE 1024 - -/* Environment */ -#define CONFIG_ENV_SIZE SZ_16K -#define CONFIG_SYS_LOAD_ADDR 0x1000000 - -/* Shell */ - -/* ATAGs support for bootm/bootz */ -#define CONFIG_SETUP_MEMORY_TAGS -#define CONFIG_CMDLINE_TAG -#define CONFIG_INITRD_TAG - -/* Environment */ -#define ENV_DEVICE_SETTINGS \ - "stdin=serial,usbkbd\0" \ - "stdout=serial,vidconsole\0" \ - "stderr=serial,vidconsole\0" - -#ifdef CONFIG_ARM64 -#define FDT_HIGH "ffffffffffffffff" -#define INITRD_HIGH "ffffffffffffffff" -#else -#define FDT_HIGH "ffffffff" -#define INITRD_HIGH "ffffffff" -#endif - -/* - * Memory layout for where various images get loaded by boot scripts: - * - * I suspect address 0 is used as the SMP pen on the RPi2, so avoid this. - * - * Older versions of the boot firmware place the firmware-loaded DTB at 0x100, - * newer versions place it in high memory. So prevent U-Boot from doing its own - * DTB + initrd relocation so that we won't accidentally relocate the initrd - * over the firmware-loaded DTB and generally try to lay out things starting - * from the bottom of RAM. - * - * kernel_addr_r has different constraints on ARM and Aarch64. For 32-bit ARM, - * it must be within the first 128M of RAM in order for the kernel's - * CONFIG_AUTO_ZRELADDR option to work. The kernel itself will be decompressed - * to 0x8000 but the decompressor clobbers 0x4000-0x8000 as well. The - * decompressor also likes to relocate itself to right past the end of the - * decompressed kernel, so in total the sum of the compressed and and - * decompressed kernel needs to be reserved. - * - * For Aarch64, the kernel image is uncompressed and must be loaded at - * text_offset bytes (specified in the header of the Image) into a 2MB - * boundary. The 'booti' command relocates the image if necessary. Linux uses - * a default text_offset of 0x80000. In summary, loading at 0x80000 - * satisfies all these constraints and reserving memory up to 0x02400000 - * permits fairly large (roughly 36M) kernels. - * - * scriptaddr and pxefile_addr_r can be pretty much anywhere that doesn't - * conflict with something else. Reserving 1M for each of them at - * 0x02400000-0x02500000 and 0x02500000-0x02600000 should be plenty. - * - * On ARM, both the DTB and any possible initrd must be loaded such that they - * fit inside the lowmem mapping in Linux. In practice, this usually means not - * more than ~700M away from the start of the kernel image but this number can - * be larger OR smaller depending on e.g. the 'vmalloc=xxxM' command line - * parameter given to the kernel. So reserving memory from low to high - * satisfies this constraint again. Reserving 1M at 0x02600000-0x02700000 for - * the DTB leaves rest of the free RAM to the initrd starting at 0x02700000. - * Even with the smallest possible CPU-GPU memory split of the CPU getting - * only 64M, the remaining 25M starting at 0x02700000 should allow quite - * large initrds before they start colliding with U-Boot. - */ -#define ENV_MEM_LAYOUT_SETTINGS \ - "fdt_high=" FDT_HIGH "\0" \ - "initrd_high=" INITRD_HIGH "\0" \ - "kernel_addr_r=0x00080000\0" \ - "scriptaddr=0x02400000\0" \ - "pxefile_addr_r=0x02500000\0" \ - "fdt_addr_r=0x02600000\0" \ - "ramdisk_addr_r=0x02700000\0" - -#if CONFIG_IS_ENABLED(CMD_MMC) - #define BOOT_TARGET_MMC(func) \ - func(MMC, mmc, 0) \ - func(MMC, mmc, 1) -#else - #define BOOT_TARGET_MMC(func) -#endif - -#if CONFIG_IS_ENABLED(CMD_USB) - #define BOOT_TARGET_USB(func) func(USB, usb, 0) -#else - #define BOOT_TARGET_USB(func) -#endif - -#if CONFIG_IS_ENABLED(CMD_PXE) - #define BOOT_TARGET_PXE(func) func(PXE, pxe, na) -#else - #define BOOT_TARGET_PXE(func) -#endif - -#if CONFIG_IS_ENABLED(CMD_DHCP) - #define BOOT_TARGET_DHCP(func) func(DHCP, dhcp, na) -#else - #define BOOT_TARGET_DHCP(func) -#endif - -#define BOOT_TARGET_DEVICES(func) \ - BOOT_TARGET_MMC(func) \ - BOOT_TARGET_USB(func) \ - BOOT_TARGET_PXE(func) \ - BOOT_TARGET_DHCP(func) - -#include <config_distro_bootcmd.h> - -#define CONFIG_EXTRA_ENV_SETTINGS \ - "dhcpuboot=usb start; dhcp u-boot.uimg; bootm\0" \ - ENV_DEVICE_SETTINGS \ - ENV_MEM_LAYOUT_SETTINGS \ - BOOTENV - - -#endif |