diff options
Diffstat (limited to 'include/configs/rpi.h')
| -rw-r--r-- | include/configs/rpi.h | 206 |
1 files changed, 204 insertions, 2 deletions
diff --git a/include/configs/rpi.h b/include/configs/rpi.h index 86422e390d..b83d622b97 100644 --- a/include/configs/rpi.h +++ b/include/configs/rpi.h @@ -1,5 +1,5 @@ /* - * (C) Copyright 2012,2015 Stephen Warren + * (C) Copyright 2012-2016 Stephen Warren * * SPDX-License-Identifier: GPL-2.0 */ @@ -7,8 +7,210 @@ #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 + +#ifdef CONFIG_BCM2835 #define CONFIG_SYS_CACHELINE_SIZE 32 +#else +#define CONFIG_SYS_CACHELINE_SIZE 64 +#endif + +/* Architecture, CPU, etc.*/ +#define CONFIG_ARCH_CPU_INIT + +/* 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_NR_DRAM_BANKS 1 +#define CONFIG_SYS_SDRAM_BASE 0x00000000 +#define CONFIG_SYS_TEXT_BASE 0x00008000 +#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 + +/* Flash */ +#define CONFIG_SYS_NO_FLASH + +/* Devices */ +/* GPIO */ +#define CONFIG_BCM2835_GPIO +/* LCD */ +#define CONFIG_LCD +#define CONFIG_LCD_DT_SIMPLEFB +#define LCD_BPP LCD_COLOR16 +/* + * Prevent allocation of RAM for FB; the real FB address is queried + * dynamically from the VideoCore co-processor, and comes from RAM + * not owned by the ARM CPU. + */ +#define CONFIG_FB_ADDR 0 +#define CONFIG_VIDEO_BCM2835 +#define CONFIG_SYS_WHITE_ON_BLACK +#define CONFIG_CONSOLE_SCROLL_LINES 10 + +/* SD/MMC configuration */ +#define CONFIG_GENERIC_MMC +#define CONFIG_MMC +#define CONFIG_SDHCI +#define CONFIG_MMC_SDHCI_IO_ACCESSORS +#define CONFIG_BCM2835_SDHCI + +#define CONFIG_CMD_USB +#ifdef CONFIG_CMD_USB +#define CONFIG_USB_DWC2 +#ifndef CONFIG_BCM2835 +#define CONFIG_USB_DWC2_REG_ADDR 0x3f980000 +#else +#define CONFIG_USB_DWC2_REG_ADDR 0x20980000 +#endif +#define CONFIG_USB_STORAGE +#define CONFIG_USB_HOST_ETHER +#define CONFIG_USB_ETHER_SMSC95XX +#define CONFIG_MISC_INIT_R +#define CONFIG_USB_KEYBOARD +#define CONFIG_SYS_USB_EVENT_POLL +#define CONFIG_SYS_STDIO_DEREGISTER +#endif + +/* Console UART */ +#ifdef CONFIG_BCM2837 +#define CONFIG_BCM283X_MU_SERIAL +#else +#define CONFIG_PL01X_SERIAL +#endif +#define CONFIG_CONS_INDEX 0 +#define CONFIG_BAUDRATE 115200 + +/* Console configuration */ +#define CONFIG_SYS_CBSIZE 1024 +#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \ + sizeof(CONFIG_SYS_PROMPT) + 16) + +/* Environment */ +#define CONFIG_ENV_SIZE SZ_16K +#define CONFIG_ENV_IS_IN_FAT +#define FAT_ENV_INTERFACE "mmc" +#define FAT_ENV_DEVICE_AND_PART "0:1" +#define FAT_ENV_FILE "uboot.env" +#define CONFIG_FAT_WRITE +#define CONFIG_ENV_VARS_UBOOT_CONFIG +#define CONFIG_SYS_LOAD_ADDR 0x1000000 +#define CONFIG_CONSOLE_MUX +#define CONFIG_SYS_CONSOLE_IS_IN_ENV +#define CONFIG_PREBOOT "usb start" + +/* Shell */ +#define CONFIG_SYS_MAXARGS 16 +#define CONFIG_COMMAND_HISTORY + +/* Commands */ +#define CONFIG_CMD_MMC +#define CONFIG_PARTITION_UUIDS +#define CONFIG_CMD_PART + +/* ATAGs support for bootm/bootz */ +#define CONFIG_SETUP_MEMORY_TAGS +#define CONFIG_CMDLINE_TAG +#define CONFIG_INITRD_TAG + +#include <config_distro_defaults.h> + +/* Environment */ +#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG +#define ENV_DEVICE_SETTINGS \ + "stdin=serial,usbkbd\0" \ + "stdout=serial,lcd\0" \ + "stderr=serial,lcd\0" + +/* + * 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. + * + * fdt_addr_r simply shouldn't overlap anything else. However, the RPi's + * binary firmware loads a DT to address 0x100, so we choose this address to + * match it. This allows custom boot scripts to pass this DT on to Linux + * simply by not over-writing the data at this address. When using U-Boot, + * U-Boot (and scripts it executes) typicaly ignore the DT loaded by the FW + * and loads its own DT from disk (triggered by boot.scr or extlinux.conf). + * + * pxefile_addr_r can be pretty much anywhere that doesn't conflict with + * something else. Put it low in memory to avoid conflicts. + * + * kernel_addr_r must be within the first 128M of RAM in order for the + * kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will + * decompress itself to 0x8000 after the start of RAM, kernel_addr_r + * should not overlap that area, or the kernel will have to copy itself + * somewhere else before decompression. Similarly, the address of any other + * data passed to the kernel shouldn't overlap the start of RAM. Pushing + * this up to 16M allows for a sizable kernel to be decompressed below the + * compressed load address. + * + * scriptaddr can be pretty much anywhere that doesn't conflict with something + * else. Choosing 32M allows for the compressed kernel to be up to 16M. + * + * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows + * for any boot script to be up to 1M, which is hopefully plenty. + */ +#define ENV_MEM_LAYOUT_SETTINGS \ + "fdt_high=ffffffff\0" \ + "initrd_high=ffffffff\0" \ + "fdt_addr_r=0x00000100\0" \ + "pxefile_addr_r=0x00100000\0" \ + "kernel_addr_r=0x01000000\0" \ + "scriptaddr=0x02000000\0" \ + "ramdisk_addr_r=0x02100000\0" \ + +#define BOOT_TARGET_DEVICES(func) \ + func(MMC, mmc, 0) \ + func(USB, usb, 0) \ + func(PXE, pxe, na) \ + func(DHCP, dhcp, na) +#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 -#include "rpi-common.h" +#define CONFIG_BOOTDELAY 2 #endif |
