rpi: add support for Raspberry Pi 2 model B
authorStephen Warren <swarren@wwwdotorg.org>
Mon, 16 Feb 2015 19:16:15 +0000 (12:16 -0700)
committerLothar Waßmann <LW@KARO-electronics.de>
Tue, 1 Sep 2015 11:53:55 +0000 (13:53 +0200)
USB doesn't seem to work yet; the controller detects the on-board Hub/
Ethernet device but can't read the descriptors from it. I haven't
investigated yet.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
arch/arm/Kconfig
arch/arm/cpu/arm1176/bcm2835/Kconfig
arch/arm/include/asm/arch-bcm2835/mbox.h
board/raspberrypi/rpi/rpi.c
board/raspberrypi/rpi_2/Kconfig [new file with mode: 0644]
board/raspberrypi/rpi_2/MAINTAINERS [new file with mode: 0644]
board/raspberrypi/rpi_2/Makefile [new file with mode: 0644]
configs/rpi_2_defconfig [new file with mode: 0644]
include/configs/rpi-common.h [new file with mode: 0644]
include/configs/rpi.h
include/configs/rpi_2.h [new file with mode: 0644]

index 879869b..09015f3 100644 (file)
@@ -393,6 +393,10 @@ config TARGET_RPI
        bool "Support rpi"
        select CPU_ARM1176
 
+config TARGET_RPI_2
+       bool "Support rpi_2"
+       select CPU_V7
+
 config TARGET_TNETV107X_EVM
        bool "Support tnetv107x_evm"
        select CPU_ARM1176
@@ -922,6 +926,7 @@ source "board/phytec/pcm051/Kconfig"
 source "board/ppcag/bg0900/Kconfig"
 source "board/pxa255_idp/Kconfig"
 source "board/raspberrypi/rpi/Kconfig"
+source "board/raspberrypi/rpi_2/Kconfig"
 source "board/samsung/smdk2410/Kconfig"
 source "board/sandisk/sansa_fuze_plus/Kconfig"
 source "board/scb9328/Kconfig"
index 94f57d7..162f973 100644 (file)
@@ -1,4 +1,4 @@
-if TARGET_RPI
+if TARGET_RPI || TARGET_RPI_2
 
 config DM
        default y if !SPL_BUILD
index c4bbaca..04bf480 100644 (file)
@@ -125,6 +125,9 @@ struct bcm2835_mbox_tag_hdr {
 
 #define BCM2835_MBOX_TAG_GET_BOARD_REV 0x00010002
 
+#ifdef CONFIG_BCM2836
+#define BCM2836_BOARD_REV_2_B          0x4
+#else
 /*
  * 0x2..0xf from:
  * http://raspberryalphaomega.org.uk/2013/02/06/automatic-raspberry-pi-board-revision-detection-model-a-b1-and-b2/
@@ -145,6 +148,7 @@ struct bcm2835_mbox_tag_hdr {
 #define BCM2835_BOARD_REV_B_PLUS       0x10
 #define BCM2835_BOARD_REV_CM           0x11
 #define BCM2835_BOARD_REV_A_PLUS       0x12
+#endif
 
 struct bcm2835_mbox_tag_get_board_rev {
        struct bcm2835_mbox_tag_hdr tag_hdr;
index fdbf87d..50a699b 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2012-2013 Stephen Warren
+ * (C) Copyright 2012-2013,2015 Stephen Warren
  *
  * SPDX-License-Identifier:    GPL-2.0
  */
@@ -29,7 +29,11 @@ U_BOOT_DEVICE(bcm2835_gpios) = {
 };
 
 static const struct pl01x_serial_platdata serial_platdata = {
+#ifdef CONFIG_BCM2836
+       .base = 0x3f201000,
+#else
        .base = 0x20201000,
+#endif
        .type = TYPE_PL011,
        .clock = 3000000,
 };
@@ -77,9 +81,20 @@ static const struct {
 } models[] = {
        [0] = {
                "Unknown model",
+#ifdef CONFIG_BCM2836
+               "bcm2836-rpi-other.dtb",
+#else
                "bcm2835-rpi-other.dtb",
+#endif
                false,
        },
+#ifdef CONFIG_BCM2836
+       [BCM2836_BOARD_REV_2_B] = {
+               "2 Model B",
+               "bcm2836-rpi-2-b.dtb",
+               true,
+       },
+#else
        [BCM2835_BOARD_REV_B_I2C0_2] = {
                "Model B (no P5)",
                "bcm2835-rpi-b-i2c0.dtb",
@@ -150,6 +165,7 @@ static const struct {
                "bcm2835-rpi-a-plus.dtb",
                false,
        },
+#endif
 };
 
 u32 rpi_board_rev = 0;
@@ -257,7 +273,15 @@ static void get_board_rev(void)
                return;
        }
 
+       /*
+        * For details of old-vs-new scheme, see:
+        * https://github.com/pimoroni/RPi.version/blob/master/RPi/version.py
+        * http://www.raspberrypi.org/forums/viewtopic.php?f=63&t=99293&p=690282
+        * (a few posts down)
+        */
        rpi_board_rev = msg->get_board_rev.body.resp.rev;
+       if (rpi_board_rev & 0x800000)
+               rpi_board_rev = (rpi_board_rev >> 4) & 0xff;
        if (rpi_board_rev >= ARRAY_SIZE(models)) {
                printf("RPI: Board rev %u outside known range\n",
                       rpi_board_rev);
@@ -269,7 +293,7 @@ static void get_board_rev(void)
        }
 
        name = models[rpi_board_rev].name;
-       printf("RPI model: %s\n", name);
+       printf("RPI %s\n", name);
 }
 
 int board_init(void)
diff --git a/board/raspberrypi/rpi_2/Kconfig b/board/raspberrypi/rpi_2/Kconfig
new file mode 100644 (file)
index 0000000..032184d
--- /dev/null
@@ -0,0 +1,15 @@
+if TARGET_RPI_2
+
+config SYS_BOARD
+       default "rpi_2"
+
+config SYS_VENDOR
+       default "raspberrypi"
+
+config SYS_SOC
+       default "bcm2835"
+
+config SYS_CONFIG_NAME
+       default "rpi_2"
+
+endif
diff --git a/board/raspberrypi/rpi_2/MAINTAINERS b/board/raspberrypi/rpi_2/MAINTAINERS
new file mode 100644 (file)
index 0000000..85a480c
--- /dev/null
@@ -0,0 +1,6 @@
+RPI_2 BOARD
+M:     Stephen Warren <swarren@wwwdotorg.org>
+S:     Maintained
+F:     board/raspberrypi/rpi_2/
+F:     include/configs/rpi_2.h
+F:     configs/rpi_2_defconfig
diff --git a/board/raspberrypi/rpi_2/Makefile b/board/raspberrypi/rpi_2/Makefile
new file mode 100644 (file)
index 0000000..d82cd21
--- /dev/null
@@ -0,0 +1,7 @@
+#
+# (C) Copyright 2012,2015 Stephen Warren
+#
+# SPDX-License-Identifier:     GPL-2.0
+#
+
+obj-y  := ../rpi/rpi.o
diff --git a/configs/rpi_2_defconfig b/configs/rpi_2_defconfig
new file mode 100644 (file)
index 0000000..b539d4a
--- /dev/null
@@ -0,0 +1,4 @@
+CONFIG_ARM=y
+CONFIG_TARGET_RPI_2=y
+CONFIG_SYS_MALLOC_F=y
+CONFIG_SYS_MALLOC_F_LEN=0x400
diff --git a/include/configs/rpi-common.h b/include/configs/rpi-common.h
new file mode 100644 (file)
index 0000000..3121ac9
--- /dev/null
@@ -0,0 +1,186 @@
+/*
+ * (C) Copyright 2012,2015 Stephen Warren
+ *
+ * SPDX-License-Identifier:    GPL-2.0
+ */
+
+#ifndef _RPI_COMMON_H_
+#define _RPI_COMMON_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.
+ *
+ * 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:-/
+ */
+#ifndef CONFIG_BCM2836
+#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
+
+/* 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
+#ifdef CONFIG_BCM2836
+#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
+#endif
+
+/* Console UART */
+#define CONFIG_PL01X_SERIAL
+#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
+
+/* 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
+
+/* 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
index 9b32149..ab2f4db 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2012 Stephen Warren
+ * (C) Copyright 2012,2015 Stephen Warren
  *
  * SPDX-License-Identifier:    GPL-2.0
  */
@@ -7,170 +7,6 @@
 #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
-
-/* 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_PL01X_SERIAL
-#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
-
-/* 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
-
-/* 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
+#include "rpi-common.h"
 
 #endif
diff --git a/include/configs/rpi_2.h b/include/configs/rpi_2.h
new file mode 100644 (file)
index 0000000..2e7e74f
--- /dev/null
@@ -0,0 +1,15 @@
+/*
+ * (C) Copyright 2012,2015 Stephen Warren
+ *
+ * SPDX-License-Identifier:    GPL-2.0
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#define CONFIG_BCM2836
+
+#include "rpi-common.h"
+
+#endif