Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 213 insertions, 0 deletions

diff --git a/roms/u-boot/include/configs/rpi.h b/roms/u-boot/include/configs/rpi.h
new file mode 100644
index 000000000..834f1cd23
--- /dev/null
+++ b/roms/u-boot/include/configs/rpi.h
@@ -0,0 +1,213 @@
+/* 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>
+
+#ifndef __ASSEMBLY__
+#include <asm/arch/base.h>
+#endif
+
+#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_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
+
+/* DFU over USB/UDC */
+#ifdef CONFIG_CMD_DFU
+#define CONFIG_SYS_DFU_DATA_BUF_SIZE	SZ_1M
+#define CONFIG_SYS_DFU_MAX_FILE_SIZE	SZ_2M
+
+#ifdef CONFIG_ARM64
+#define KERNEL_FILENAME		"Image"
+#else
+#define KERNEL_FILENAME		"zImage"
+#endif
+
+#define ENV_DFU_SETTINGS \
+	"dfu_alt_info=u-boot.bin fat 0 1;uboot.env fat 0 1;" \
+		      "config.txt fat 0 1;" \
+		      KERNEL_FILENAME " fat 0 1\0"
+#else
+#define ENV_DFU_SETTINGS ""
+#endif
+
+/* Console configuration */
+#define CONFIG_SYS_CBSIZE		1024
+
+/* Environment */
+#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_DFU_SETTINGS \
+	ENV_MEM_LAYOUT_SETTINGS \
+	BOOTENV
+
+
+#endif