include/configs/rpi.h - platform/external/u-boot - Gitiles

 /*
  * (C) Copyright 2012-2016 Stephen Warren
  *
  * 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

 #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
 #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
  * 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

 #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

 #define CONFIG_BOOTDELAY 2

 #endif
	/*
	* (C) Copyright 2012-2016 Stephen Warren
	*
	* 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

	#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
	#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
	* 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

	#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

	#define CONFIG_BOOTDELAY 2

	#endif