ARM: bcm283x: move SoC headers to mach-bcm283x/include/mach
Move arch/arm/include/asm/arch-bcm283x/*
-> arch/arm/mach-bcm283x/include/mach/*
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
diff --git a/arch/arm/mach-bcm283x/Kconfig b/arch/arm/mach-bcm283x/Kconfig
index d5e09e8..b43f2d9 100644
--- a/arch/arm/mach-bcm283x/Kconfig
+++ b/arch/arm/mach-bcm283x/Kconfig
@@ -31,7 +31,7 @@
default "raspberrypi"
config SYS_SOC
- default "bcm2835"
+ default "bcm283x"
config SYS_CONFIG_NAME
default "rpi" if TARGET_RPI
diff --git a/arch/arm/mach-bcm283x/include/mach/gpio.h b/arch/arm/mach-bcm283x/include/mach/gpio.h
new file mode 100644
index 0000000..c8ef8f5
--- /dev/null
+++ b/arch/arm/mach-bcm283x/include/mach/gpio.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2012 Vikram Narayananan
+ * <vikram186@gmail.com>
+ * (C) Copyright 2012,2015 Stephen Warren
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _BCM2835_GPIO_H_
+#define _BCM2835_GPIO_H_
+
+#ifdef CONFIG_BCM2836
+#define BCM2835_GPIO_BASE 0x3f200000
+#else
+#define BCM2835_GPIO_BASE 0x20200000
+#endif
+#define BCM2835_GPIO_COUNT 54
+
+#define BCM2835_GPIO_FSEL_MASK 0x7
+#define BCM2835_GPIO_INPUT 0x0
+#define BCM2835_GPIO_OUTPUT 0x1
+#define BCM2835_GPIO_ALT0 0x4
+#define BCM2835_GPIO_ALT1 0x5
+#define BCM2835_GPIO_ALT2 0x6
+#define BCM2835_GPIO_ALT3 0x7
+#define BCM2835_GPIO_ALT4 0x3
+#define BCM2835_GPIO_ALT5 0x2
+
+#define BCM2835_GPIO_COMMON_BANK(gpio) ((gpio < 32) ? 0 : 1)
+#define BCM2835_GPIO_COMMON_SHIFT(gpio) (gpio & 0x1f)
+
+#define BCM2835_GPIO_FSEL_BANK(gpio) (gpio / 10)
+#define BCM2835_GPIO_FSEL_SHIFT(gpio) ((gpio % 10) * 3)
+
+struct bcm2835_gpio_regs {
+ u32 gpfsel[6];
+ u32 reserved1;
+ u32 gpset[2];
+ u32 reserved2;
+ u32 gpclr[2];
+ u32 reserved3;
+ u32 gplev[2];
+ u32 reserved4;
+ u32 gpeds[2];
+ u32 reserved5;
+ u32 gpren[2];
+ u32 reserved6;
+ u32 gpfen[2];
+ u32 reserved7;
+ u32 gphen[2];
+ u32 reserved8;
+ u32 gplen[2];
+ u32 reserved9;
+ u32 gparen[2];
+ u32 reserved10;
+ u32 gppud;
+ u32 gppudclk[2];
+};
+
+/**
+ * struct bcm2835_gpio_platdata - GPIO platform description
+ *
+ * @base: Base address of GPIO controller
+ */
+struct bcm2835_gpio_platdata {
+ unsigned long base;
+};
+
+#endif /* _BCM2835_GPIO_H_ */
diff --git a/arch/arm/mach-bcm283x/include/mach/mbox.h b/arch/arm/mach-bcm283x/include/mach/mbox.h
new file mode 100644
index 0000000..04bf480
--- /dev/null
+++ b/arch/arm/mach-bcm283x/include/mach/mbox.h
@@ -0,0 +1,527 @@
+/*
+ * (C) Copyright 2012,2015 Stephen Warren
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _BCM2835_MBOX_H
+#define _BCM2835_MBOX_H
+
+#include <linux/compiler.h>
+
+/*
+ * The BCM2835 SoC contains (at least) two CPUs; the VideoCore (a/k/a "GPU")
+ * and the ARM CPU. The ARM CPU is often thought of as the main CPU.
+ * However, the VideoCore actually controls the initial SoC boot, and hides
+ * much of the hardware behind a protocol. This protocol is transported
+ * using the SoC's mailbox hardware module.
+ *
+ * The mailbox hardware supports passing 32-bit values back and forth.
+ * Presumably by software convention of the firmware, the bottom 4 bits of the
+ * value are used to indicate a logical channel, and the upper 28 bits are the
+ * actual payload. Various channels exist using these simple raw messages. See
+ * https://github.com/raspberrypi/firmware/wiki/Mailboxes for a list. As an
+ * example, the messages on the power management channel are a bitmask of
+ * devices whose power should be enabled.
+ *
+ * The property mailbox channel passes messages that contain the (16-byte
+ * aligned) ARM physical address of a memory buffer. This buffer is passed to
+ * the VC for processing, is modified in-place by the VC, and the address then
+ * passed back to the ARM CPU as the response mailbox message to indicate
+ * request completion. The buffers have a generic and extensible format; each
+ * buffer contains a standard header, a list of "tags", and a terminating zero
+ * entry. Each tag contains an ID indicating its type, and length fields for
+ * generic parsing. With some limitations, an arbitrary set of tags may be
+ * combined together into a single message buffer. This file defines structs
+ * representing the header and many individual tag layouts and IDs.
+ */
+
+/* Raw mailbox HW */
+
+#ifdef CONFIG_BCM2836
+#define BCM2835_MBOX_PHYSADDR 0x3f00b880
+#else
+#define BCM2835_MBOX_PHYSADDR 0x2000b880
+#endif
+
+struct bcm2835_mbox_regs {
+ u32 read;
+ u32 rsvd0[5];
+ u32 status;
+ u32 config;
+ u32 write;
+};
+
+#define BCM2835_MBOX_STATUS_WR_FULL 0x80000000
+#define BCM2835_MBOX_STATUS_RD_EMPTY 0x40000000
+
+/* Lower 4-bits are channel ID */
+#define BCM2835_CHAN_MASK 0xf
+#define BCM2835_MBOX_PACK(chan, data) (((data) & (~BCM2835_CHAN_MASK)) | \
+ (chan & BCM2835_CHAN_MASK))
+#define BCM2835_MBOX_UNPACK_CHAN(val) ((val) & BCM2835_CHAN_MASK)
+#define BCM2835_MBOX_UNPACK_DATA(val) ((val) & (~BCM2835_CHAN_MASK))
+
+/* Property mailbox buffer structures */
+
+#define BCM2835_MBOX_PROP_CHAN 8
+
+/* All message buffers must start with this header */
+struct bcm2835_mbox_hdr {
+ u32 buf_size;
+ u32 code;
+};
+
+#define BCM2835_MBOX_REQ_CODE 0
+#define BCM2835_MBOX_RESP_CODE_SUCCESS 0x80000000
+
+#define BCM2835_MBOX_INIT_HDR(_m_) { \
+ memset((_m_), 0, sizeof(*(_m_))); \
+ (_m_)->hdr.buf_size = sizeof(*(_m_)); \
+ (_m_)->hdr.code = 0; \
+ (_m_)->end_tag = 0; \
+ }
+
+/*
+ * A message buffer contains a list of tags. Each tag must also start with
+ * a standardized header.
+ */
+struct bcm2835_mbox_tag_hdr {
+ u32 tag;
+ u32 val_buf_size;
+ u32 val_len;
+};
+
+#define BCM2835_MBOX_INIT_TAG(_t_, _id_) { \
+ (_t_)->tag_hdr.tag = BCM2835_MBOX_TAG_##_id_; \
+ (_t_)->tag_hdr.val_buf_size = sizeof((_t_)->body); \
+ (_t_)->tag_hdr.val_len = sizeof((_t_)->body.req); \
+ }
+
+#define BCM2835_MBOX_INIT_TAG_NO_REQ(_t_, _id_) { \
+ (_t_)->tag_hdr.tag = BCM2835_MBOX_TAG_##_id_; \
+ (_t_)->tag_hdr.val_buf_size = sizeof((_t_)->body); \
+ (_t_)->tag_hdr.val_len = 0; \
+ }
+
+/* When responding, the VC sets this bit in val_len to indicate a response */
+#define BCM2835_MBOX_TAG_VAL_LEN_RESPONSE 0x80000000
+
+/*
+ * Below we define the ID and struct for many possible tags. This header only
+ * defines individual tag structs, not entire message structs, since in
+ * general an arbitrary set of tags may be combined into a single message.
+ * Clients of the mbox API are expected to define their own overall message
+ * structures by combining the header, a set of tags, and a terminating
+ * entry. For example,
+ *
+ * struct msg {
+ * struct bcm2835_mbox_hdr hdr;
+ * struct bcm2835_mbox_tag_get_arm_mem get_arm_mem;
+ * ... perhaps other tags here ...
+ * u32 end_tag;
+ * };
+ */
+
+#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/
+ * http://www.raspberrypi.org/forums/viewtopic.php?f=63&t=32733
+ * 0x10, 0x11 from swarren's testing
+ */
+#define BCM2835_BOARD_REV_B_I2C0_2 0x2
+#define BCM2835_BOARD_REV_B_I2C0_3 0x3
+#define BCM2835_BOARD_REV_B_I2C1_4 0x4
+#define BCM2835_BOARD_REV_B_I2C1_5 0x5
+#define BCM2835_BOARD_REV_B_I2C1_6 0x6
+#define BCM2835_BOARD_REV_A_7 0x7
+#define BCM2835_BOARD_REV_A_8 0x8
+#define BCM2835_BOARD_REV_A_9 0x9
+#define BCM2835_BOARD_REV_B_REV2_d 0xd
+#define BCM2835_BOARD_REV_B_REV2_e 0xe
+#define BCM2835_BOARD_REV_B_REV2_f 0xf
+#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;
+ union {
+ struct {
+ } req;
+ struct {
+ u32 rev;
+ } resp;
+ } body;
+};
+
+#define BCM2835_MBOX_TAG_GET_MAC_ADDRESS 0x00010003
+
+struct bcm2835_mbox_tag_get_mac_address {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ struct {
+ } req;
+ struct {
+ u8 mac[6];
+ u8 pad[2];
+ } resp;
+ } body;
+};
+
+#define BCM2835_MBOX_TAG_GET_ARM_MEMORY 0x00010005
+
+struct bcm2835_mbox_tag_get_arm_mem {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ struct {
+ } req;
+ struct {
+ u32 mem_base;
+ u32 mem_size;
+ } resp;
+ } body;
+};
+
+#define BCM2835_MBOX_POWER_DEVID_SDHCI 0
+#define BCM2835_MBOX_POWER_DEVID_UART0 1
+#define BCM2835_MBOX_POWER_DEVID_UART1 2
+#define BCM2835_MBOX_POWER_DEVID_USB_HCD 3
+#define BCM2835_MBOX_POWER_DEVID_I2C0 4
+#define BCM2835_MBOX_POWER_DEVID_I2C1 5
+#define BCM2835_MBOX_POWER_DEVID_I2C2 6
+#define BCM2835_MBOX_POWER_DEVID_SPI 7
+#define BCM2835_MBOX_POWER_DEVID_CCP2TX 8
+
+#define BCM2835_MBOX_POWER_STATE_RESP_ON (1 << 0)
+/* Device doesn't exist */
+#define BCM2835_MBOX_POWER_STATE_RESP_NODEV (1 << 1)
+
+#define BCM2835_MBOX_TAG_GET_POWER_STATE 0x00020001
+
+struct bcm2835_mbox_tag_get_power_state {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ struct {
+ u32 device_id;
+ } req;
+ struct {
+ u32 device_id;
+ u32 state;
+ } resp;
+ } body;
+};
+
+#define BCM2835_MBOX_TAG_SET_POWER_STATE 0x00028001
+
+#define BCM2835_MBOX_SET_POWER_STATE_REQ_ON (1 << 0)
+#define BCM2835_MBOX_SET_POWER_STATE_REQ_WAIT (1 << 1)
+
+struct bcm2835_mbox_tag_set_power_state {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ struct {
+ u32 device_id;
+ u32 state;
+ } req;
+ struct {
+ u32 device_id;
+ u32 state;
+ } resp;
+ } body;
+};
+
+#define BCM2835_MBOX_TAG_GET_CLOCK_RATE 0x00030002
+
+#define BCM2835_MBOX_CLOCK_ID_EMMC 1
+#define BCM2835_MBOX_CLOCK_ID_UART 2
+#define BCM2835_MBOX_CLOCK_ID_ARM 3
+#define BCM2835_MBOX_CLOCK_ID_CORE 4
+#define BCM2835_MBOX_CLOCK_ID_V3D 5
+#define BCM2835_MBOX_CLOCK_ID_H264 6
+#define BCM2835_MBOX_CLOCK_ID_ISP 7
+#define BCM2835_MBOX_CLOCK_ID_SDRAM 8
+#define BCM2835_MBOX_CLOCK_ID_PIXEL 9
+#define BCM2835_MBOX_CLOCK_ID_PWM 10
+
+struct bcm2835_mbox_tag_get_clock_rate {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ struct {
+ u32 clock_id;
+ } req;
+ struct {
+ u32 clock_id;
+ u32 rate_hz;
+ } resp;
+ } body;
+};
+
+#define BCM2835_MBOX_TAG_ALLOCATE_BUFFER 0x00040001
+
+struct bcm2835_mbox_tag_allocate_buffer {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ struct {
+ u32 alignment;
+ } req;
+ struct {
+ u32 fb_address;
+ u32 fb_size;
+ } resp;
+ } body;
+};
+
+#define BCM2835_MBOX_TAG_RELEASE_BUFFER 0x00048001
+
+struct bcm2835_mbox_tag_release_buffer {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ struct {
+ } req;
+ struct {
+ } resp;
+ } body;
+};
+
+#define BCM2835_MBOX_TAG_BLANK_SCREEN 0x00040002
+
+struct bcm2835_mbox_tag_blank_screen {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ struct {
+ /* bit 0 means on, other bots reserved */
+ u32 state;
+ } req;
+ struct {
+ u32 state;
+ } resp;
+ } body;
+};
+
+/* Physical means output signal */
+#define BCM2835_MBOX_TAG_GET_PHYSICAL_W_H 0x00040003
+#define BCM2835_MBOX_TAG_TEST_PHYSICAL_W_H 0x00044003
+#define BCM2835_MBOX_TAG_SET_PHYSICAL_W_H 0x00048003
+
+struct bcm2835_mbox_tag_physical_w_h {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ /* req not used for get */
+ struct {
+ u32 width;
+ u32 height;
+ } req;
+ struct {
+ u32 width;
+ u32 height;
+ } resp;
+ } body;
+};
+
+/* Virtual means display buffer */
+#define BCM2835_MBOX_TAG_GET_VIRTUAL_W_H 0x00040004
+#define BCM2835_MBOX_TAG_TEST_VIRTUAL_W_H 0x00044004
+#define BCM2835_MBOX_TAG_SET_VIRTUAL_W_H 0x00048004
+
+struct bcm2835_mbox_tag_virtual_w_h {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ /* req not used for get */
+ struct {
+ u32 width;
+ u32 height;
+ } req;
+ struct {
+ u32 width;
+ u32 height;
+ } resp;
+ } body;
+};
+
+#define BCM2835_MBOX_TAG_GET_DEPTH 0x00040005
+#define BCM2835_MBOX_TAG_TEST_DEPTH 0x00044005
+#define BCM2835_MBOX_TAG_SET_DEPTH 0x00048005
+
+struct bcm2835_mbox_tag_depth {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ /* req not used for get */
+ struct {
+ u32 bpp;
+ } req;
+ struct {
+ u32 bpp;
+ } resp;
+ } body;
+};
+
+#define BCM2835_MBOX_TAG_GET_PIXEL_ORDER 0x00040006
+#define BCM2835_MBOX_TAG_TEST_PIXEL_ORDER 0x00044005
+#define BCM2835_MBOX_TAG_SET_PIXEL_ORDER 0x00048006
+
+#define BCM2835_MBOX_PIXEL_ORDER_BGR 0
+#define BCM2835_MBOX_PIXEL_ORDER_RGB 1
+
+struct bcm2835_mbox_tag_pixel_order {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ /* req not used for get */
+ struct {
+ u32 order;
+ } req;
+ struct {
+ u32 order;
+ } resp;
+ } body;
+};
+
+#define BCM2835_MBOX_TAG_GET_ALPHA_MODE 0x00040007
+#define BCM2835_MBOX_TAG_TEST_ALPHA_MODE 0x00044007
+#define BCM2835_MBOX_TAG_SET_ALPHA_MODE 0x00048007
+
+#define BCM2835_MBOX_ALPHA_MODE_0_OPAQUE 0
+#define BCM2835_MBOX_ALPHA_MODE_0_TRANSPARENT 1
+#define BCM2835_MBOX_ALPHA_MODE_IGNORED 2
+
+struct bcm2835_mbox_tag_alpha_mode {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ /* req not used for get */
+ struct {
+ u32 alpha;
+ } req;
+ struct {
+ u32 alpha;
+ } resp;
+ } body;
+};
+
+#define BCM2835_MBOX_TAG_GET_PITCH 0x00040008
+
+struct bcm2835_mbox_tag_pitch {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ struct {
+ } req;
+ struct {
+ u32 pitch;
+ } resp;
+ } body;
+};
+
+/* Offset of display window within buffer */
+#define BCM2835_MBOX_TAG_GET_VIRTUAL_OFFSET 0x00040009
+#define BCM2835_MBOX_TAG_TEST_VIRTUAL_OFFSET 0x00044009
+#define BCM2835_MBOX_TAG_SET_VIRTUAL_OFFSET 0x00048009
+
+struct bcm2835_mbox_tag_virtual_offset {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ /* req not used for get */
+ struct {
+ u32 x;
+ u32 y;
+ } req;
+ struct {
+ u32 x;
+ u32 y;
+ } resp;
+ } body;
+};
+
+#define BCM2835_MBOX_TAG_GET_OVERSCAN 0x0004000a
+#define BCM2835_MBOX_TAG_TEST_OVERSCAN 0x0004400a
+#define BCM2835_MBOX_TAG_SET_OVERSCAN 0x0004800a
+
+struct bcm2835_mbox_tag_overscan {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ /* req not used for get */
+ struct {
+ u32 top;
+ u32 bottom;
+ u32 left;
+ u32 right;
+ } req;
+ struct {
+ u32 top;
+ u32 bottom;
+ u32 left;
+ u32 right;
+ } resp;
+ } body;
+};
+
+#define BCM2835_MBOX_TAG_GET_PALETTE 0x0004000b
+
+struct bcm2835_mbox_tag_get_palette {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ struct {
+ } req;
+ struct {
+ u32 data[1024];
+ } resp;
+ } body;
+};
+
+#define BCM2835_MBOX_TAG_TEST_PALETTE 0x0004400b
+
+struct bcm2835_mbox_tag_test_palette {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ struct {
+ u32 offset;
+ u32 num_entries;
+ u32 data[256];
+ } req;
+ struct {
+ u32 is_invalid;
+ } resp;
+ } body;
+};
+
+#define BCM2835_MBOX_TAG_SET_PALETTE 0x0004800b
+
+struct bcm2835_mbox_tag_set_palette {
+ struct bcm2835_mbox_tag_hdr tag_hdr;
+ union {
+ struct {
+ u32 offset;
+ u32 num_entries;
+ u32 data[256];
+ } req;
+ struct {
+ u32 is_invalid;
+ } resp;
+ } body;
+};
+
+/*
+ * Pass a raw u32 message to the VC, and receive a raw u32 back.
+ *
+ * Returns 0 for success, any other value for error.
+ */
+int bcm2835_mbox_call_raw(u32 chan, u32 send, u32 *recv);
+
+/*
+ * Pass a complete property-style buffer to the VC, and wait until it has
+ * been processed.
+ *
+ * This function expects a pointer to the mbox_hdr structure in an attempt
+ * to ensure some degree of type safety. However, some number of tags and
+ * a termination value are expected to immediately follow the header in
+ * memory, as required by the property protocol.
+ *
+ * Returns 0 for success, any other value for error.
+ */
+int bcm2835_mbox_call_prop(u32 chan, struct bcm2835_mbox_hdr *buffer);
+
+#endif
diff --git a/arch/arm/mach-bcm283x/include/mach/sdhci.h b/arch/arm/mach-bcm283x/include/mach/sdhci.h
new file mode 100644
index 0000000..2a21ccb
--- /dev/null
+++ b/arch/arm/mach-bcm283x/include/mach/sdhci.h
@@ -0,0 +1,18 @@
+/*
+ * (C) Copyright 2012,2015 Stephen Warren
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#ifndef _BCM2835_SDHCI_H_
+#define _BCM2835_SDHCI_H_
+
+#ifdef CONFIG_BCM2836
+#define BCM2835_SDHCI_BASE 0x3f300000
+#else
+#define BCM2835_SDHCI_BASE 0x20300000
+#endif
+
+int bcm2835_sdhci_init(u32 regbase, u32 emmc_freq);
+
+#endif
diff --git a/arch/arm/mach-bcm283x/include/mach/timer.h b/arch/arm/mach-bcm283x/include/mach/timer.h
new file mode 100644
index 0000000..fc7aec7
--- /dev/null
+++ b/arch/arm/mach-bcm283x/include/mach/timer.h
@@ -0,0 +1,33 @@
+/*
+ * (C) Copyright 2012,2015 Stephen Warren
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#ifndef _BCM2835_TIMER_H
+#define _BCM2835_TIMER_H
+
+#ifdef CONFIG_BCM2836
+#define BCM2835_TIMER_PHYSADDR 0x3f003000
+#else
+#define BCM2835_TIMER_PHYSADDR 0x20003000
+#endif
+
+struct bcm2835_timer_regs {
+ u32 cs;
+ u32 clo;
+ u32 chi;
+ u32 c0;
+ u32 c1;
+ u32 c2;
+ u32 c3;
+};
+
+#define BCM2835_TIMER_CS_M3 (1 << 3)
+#define BCM2835_TIMER_CS_M2 (1 << 2)
+#define BCM2835_TIMER_CS_M1 (1 << 1)
+#define BCM2835_TIMER_CS_M0 (1 << 0)
+
+extern ulong get_timer_us(ulong base);
+
+#endif
diff --git a/arch/arm/mach-bcm283x/include/mach/wdog.h b/arch/arm/mach-bcm283x/include/mach/wdog.h
new file mode 100644
index 0000000..beb6a08
--- /dev/null
+++ b/arch/arm/mach-bcm283x/include/mach/wdog.h
@@ -0,0 +1,30 @@
+/*
+ * (C) Copyright 2012,2015 Stephen Warren
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#ifndef _BCM2835_TIMER_H
+#define _BCM2835_TIMER_H
+
+#ifdef CONFIG_BCM2836
+#define BCM2835_WDOG_PHYSADDR 0x3f100000
+#else
+#define BCM2835_WDOG_PHYSADDR 0x20100000
+#endif
+
+struct bcm2835_wdog_regs {
+ u32 unknown0[7];
+ u32 rstc;
+ u32 unknown1;
+ u32 wdog;
+};
+
+#define BCM2835_WDOG_PASSWORD 0x5a000000
+
+#define BCM2835_WDOG_RSTC_WRCFG_MASK 0x00000030
+#define BCM2835_WDOG_RSTC_WRCFG_FULL_RESET 0x00000020
+
+#define BCM2835_WDOG_WDOG_TIMEOUT_MASK 0x0000ffff
+
+#endif