/*
- * (C) Copyright 2012 Stephen Warren
+ * (C) Copyright 2012-2016 Stephen Warren
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0
*/
#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.*/
-#define CONFIG_SYS_GENERIC_BOARD
-#define CONFIG_BCM2835
#define CONFIG_ARCH_CPU_INIT
-#define CONFIG_SYS_DCACHE_OFF
+
+/* 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
+#ifdef CONFIG_ARM64
+#define CONFIG_SYS_TEXT_BASE 0x00080000
+#else
#define CONFIG_SYS_TEXT_BASE 0x00008000
+#endif
#define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE
/*
* The board really has 256M. However, the VC (VideoCore co-processor) shares
#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_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_TFTP_TSIZE
#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
#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 8
-#define CONFIG_SYS_PROMPT "U-Boot> "
+#define CONFIG_SYS_MAXARGS 16
#define CONFIG_COMMAND_HISTORY
/* Commands */
-#include <config_cmd_default.h>
-#define CONFIG_CMD_GPIO
-#define CONFIG_CMD_MMC
#define CONFIG_PARTITION_UUIDS
#define CONFIG_CMD_PART
-/* Device tree support */
-#define CONFIG_OF_BOARD_SETUP
/* ATAGs support for bootm/bootz */
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_CMDLINE_TAG
#include <config_distro_defaults.h>
-/* Some things don't make sense on this HW or yet */
-#undef CONFIG_CMD_FPGA
-
/* Environment */
+#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
#define ENV_DEVICE_SETTINGS \
- "stdin=serial,lcd\0" \
+ "stdin=serial,usbkbd\0" \
"stdout=serial,lcd\0" \
"stderr=serial,lcd\0"
/*
* Memory layout for where various images get loaded by boot scripts:
*
- * scriptaddr can be pretty much anywhere that doesn't conflict with something
- * else. Put it low in memory to avoid conflicts.
+ * 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.
* this up to 16M allows for a sizable kernel to be decompressed below the
* compressed load address.
*
- * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
- * the compressed kernel to be up to 16M too.
+ * 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 the FDT/DTB to be up to 1M, which is hopefully plenty.
+ * for any boot script to be up to 1M, which is hopefully plenty.
*/
#define ENV_MEM_LAYOUT_SETTINGS \
- "scriptaddr=0x00000000\0" \
+ "fdt_high=ffffffff\0" \
+ "initrd_high=ffffffff\0" \
+ "fdt_addr_r=0x00000100\0" \
"pxefile_addr_r=0x00100000\0" \
"kernel_addr_r=0x01000000\0" \
- "fdt_addr_r=0x02000000\0" \
+ "scriptaddr=0x02000000\0" \
"ramdisk_addr_r=0x02100000\0" \
#define BOOT_TARGET_DEVICES(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
-#define CONFIG_BOOTDELAY 2
#endif
projects / platform / kernel / u-boot.git / blobdiff