ARM: rpi: rename rpi_b to rpi

The U-Boot port runs on a variety of RPi models, not just the B. So,
rename the port to something slightly more generic.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>

1 files changed, 194 insertions, 0 deletions

diff --git a/include/configs/rpi.h b/include/configs/rpi.h
new file mode 100644
index 0000000..4874c51
--- /dev/null
+++ b/include/configs/rpi.h
@@ -0,0 +1,194 @@
+/*
+ * (C) Copyright 2012 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.
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include <linux/sizes.h>
+
+/* Architecture, CPU, etc.*/
+#define CONFIG_SYS_GENERIC_BOARD
+#define CONFIG_BCM2835
+#define CONFIG_ARCH_CPU_INIT
+#define CONFIG_SYS_DCACHE_OFF
+/*
+ * 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.
+ */
+#define CONFIG_MACH_TYPE		MACH_TYPE_BCM2708
+
+/* Enable driver model */
+#define CONFIG_DM
+#define CONFIG_CMD_DM
+#define CONFIG_DM_GPIO
+
+/* 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
+
+/* 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
+#define CONFIG_USB_DWC2_REG_ADDR 0x20980000
+#define CONFIG_USB_STORAGE
+#define CONFIG_USB_HOST_ETHER
+#define CONFIG_USB_ETHER_SMSC95XX
+#define CONFIG_MISC_INIT_R
+#endif
+
+/* Console UART */
+#define CONFIG_PL011_SERIAL
+#define CONFIG_PL011_CLOCK		3000000
+#define CONFIG_PL01x_PORTS		{ (void *)0x20201000 }
+#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_NOWHERE
+#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 \
+	"if load mmc 0:1 ${loadaddr} /uEnv.txt; then " \
+		"env import -t -r ${loadaddr} ${filesize}; " \
+	"fi"
+
+/* Shell */
+#define CONFIG_SYS_MAXARGS		8
+#define CONFIG_SYS_PROMPT		"U-Boot> "
+#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
+#define CONFIG_INITRD_TAG
+
+#include <config_distro_defaults.h>
+
+/* Some things don't make sense on this HW or yet */
+#undef CONFIG_CMD_FPGA
+#undef CONFIG_CMD_SAVEENV
+
+/* Environment */
+#define ENV_DEVICE_SETTINGS \
+	"stdin=serial,lcd\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.
+ *
+ * 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.
+ *
+ * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
+ *   the compressed kernel to be up to 16M too.
+ *
+ * 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.
+ */
+#define ENV_MEM_LAYOUT_SETTINGS \
+	"scriptaddr=0x00000000\0" \
+	"pxefile_addr_r=0x00100000\0" \
+	"kernel_addr_r=0x01000000\0" \
+	"fdt_addr_r=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 \
+	ENV_DEVICE_SETTINGS \
+	ENV_MEM_LAYOUT_SETTINGS \
+	BOOTENV
+
+#define CONFIG_BOOTDELAY 2
+
+#endif