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authorbigmagic <[email protected]>2020-11-28 18:27:24 +0800
committerbigmagic <[email protected]>2020-11-28 18:27:24 +0800
commitbda0d303afc65811bf32e5067d3fb92306004186 (patch)
tree5d965f59962756c1c987bf6f411a0ece1517648f
parent5bcf84edcb0b9459d1fa24b700c22de4efbae899 (diff)
add raspi4 driver
-rw-r--r--bsp/raspberry-pi/raspi4-32/.config15
-rw-r--r--bsp/raspberry-pi/raspi4-32/driver/Kconfig28
-rw-r--r--bsp/raspberry-pi/raspi4-32/driver/board.c2
-rw-r--r--bsp/raspberry-pi/raspi4-32/driver/drv_i2c.c368
-rw-r--r--bsp/raspberry-pi/raspi4-32/driver/drv_i2c.h59
-rw-r--r--bsp/raspberry-pi/raspi4-32/driver/raspi4.h17
-rw-r--r--bsp/raspberry-pi/raspi4-32/rtconfig.h4
7 files changed, 490 insertions, 3 deletions
diff --git a/bsp/raspberry-pi/raspi4-32/.config b/bsp/raspberry-pi/raspi4-32/.config
index 041075c70e..dc8b2ab72b 100644
--- a/bsp/raspberry-pi/raspi4-32/.config
+++ b/bsp/raspberry-pi/raspi4-32/.config
@@ -151,7 +151,10 @@ CONFIG_RT_SERIAL_RB_BUFSZ=64
# CONFIG_RT_USING_CAN is not set
# CONFIG_RT_USING_HWTIMER is not set
# CONFIG_RT_USING_CPUTIME is not set
-# CONFIG_RT_USING_I2C is not set
+CONFIG_RT_USING_I2C=y
+# CONFIG_RT_I2C_DEBUG is not set
+CONFIG_RT_USING_I2C_BITOPS=y
+# CONFIG_RT_I2C_BITOPS_DEBUG is not set
# CONFIG_RT_USING_PHY is not set
CONFIG_RT_USING_PIN=y
# CONFIG_RT_USING_ADC is not set
@@ -502,6 +505,8 @@ CONFIG_RT_LWIP_USING_PING=y
# CONFIG_PKG_USING_AD7746 is not set
# CONFIG_PKG_USING_PCA9685 is not set
# CONFIG_PKG_USING_I2C_TOOLS is not set
+# CONFIG_PKG_USING_I2C_TOOLS_V100 is not set
+# CONFIG_PKG_USING_I2C_TOOLS_LATEST_VERSION is not set
# CONFIG_PKG_USING_NRF24L01 is not set
# CONFIG_PKG_USING_TOUCH_DRIVERS is not set
# CONFIG_PKG_USING_MAX17048 is not set
@@ -526,6 +531,7 @@ CONFIG_RT_LWIP_USING_PING=y
# CONFIG_PKG_USING_LY68L6400 is not set
# CONFIG_PKG_USING_DM9051 is not set
# CONFIG_PKG_USING_SSD1306 is not set
+# CONFIG_PKG_USING_SSD1306_LATEST_VERSION is not set
# CONFIG_PKG_USING_QKEY is not set
#
@@ -634,6 +640,13 @@ CONFIG_BSP_USING_SPI=y
CONFIG_BSP_USING_SPI0_BUS=y
CONFIG_BSP_USING_SPI0_DEVICE0=y
CONFIG_BSP_USING_SPI0_DEVICE1=y
+CONFIG_BSP_USING_I2C=y
+# CONFIG_BSP_USING_I2C0 is not set
+# CONFIG_BSP_USING_I2C1 is not set
+CONFIG_BSP_USING_I2C3=y
+# CONFIG_BSP_USING_I2C4 is not set
+# CONFIG_BSP_USING_I2C5 is not set
+# CONFIG_BSP_USING_I2C6 is not set
CONFIG_BSP_USING_CORETIMER=y
# CONFIG_BSP_USING_SYSTIMER is not set
CONFIG_BSP_USING_WDT=y
diff --git a/bsp/raspberry-pi/raspi4-32/driver/Kconfig b/bsp/raspberry-pi/raspi4-32/driver/Kconfig
index 42a1045e60..8d3f4f2399 100644
--- a/bsp/raspberry-pi/raspi4-32/driver/Kconfig
+++ b/bsp/raspberry-pi/raspi4-32/driver/Kconfig
@@ -50,7 +50,7 @@ menu "Hardware Drivers Config"
select RT_USING_PIN
default y
- menuconfig BSP_USING_SPI
+ menuconfig BSP_USING_SPI
bool "Enable SPI"
select RT_USING_SPI
default n
@@ -69,6 +69,32 @@ menu "Hardware Drivers Config"
default n
endif
+ menuconfig BSP_USING_I2C
+ bool "Enable I2C"
+ select RT_USING_I2C
+ default n
+
+ if BSP_USING_I2C
+ config BSP_USING_I2C0
+ bool "Enable I2C0 BUS"
+ default n
+ config BSP_USING_I2C1
+ bool "Enable I2C1 BUS"
+ default n
+ config BSP_USING_I2C3
+ bool "Enable I2C3 BUS"
+ default n
+ config BSP_USING_I2C4
+ bool "Enable I2C4 BUS"
+ default n
+ config BSP_USING_I2C5
+ bool "Enable I2C5 BUS"
+ default n
+ config BSP_USING_I2C6
+ bool "Enable I2C6 BUS"
+ default n
+ endif
+
config BSP_USING_CORETIMER
bool "Using core timer"
select RT_USING_CORETIMER
diff --git a/bsp/raspberry-pi/raspi4-32/driver/board.c b/bsp/raspberry-pi/raspi4-32/driver/board.c
index 3e81b2e537..01b3a79882 100644
--- a/bsp/raspberry-pi/raspi4-32/driver/board.c
+++ b/bsp/raspberry-pi/raspi4-32/driver/board.c
@@ -24,7 +24,7 @@ struct mem_desc platform_mem_desc[] = {
{0x0E000000, 0x0EE00000, 0x0E000000, DEVICE_MEM}, //framebuffer
{0x0F400000, 0x0FA00000, 0x0F400000, DEVICE_MEM}, //dsi_touch
{0xFD500000, 0xFDA00000, 0xFD500000, DEVICE_MEM}, //gmac
- {0xFE000000, 0xFE400000, 0xFE000000, DEVICE_MEM}, //peripheral
+ {0xFE000000, 0xFEA00000, 0xFE000000, DEVICE_MEM}, //peripheral
{0xFF800000, 0xFFA00000, 0xFF800000, DEVICE_MEM} //gic
};
diff --git a/bsp/raspberry-pi/raspi4-32/driver/drv_i2c.c b/bsp/raspberry-pi/raspi4-32/driver/drv_i2c.c
new file mode 100644
index 0000000000..f596eccc89
--- /dev/null
+++ b/bsp/raspberry-pi/raspi4-32/driver/drv_i2c.c
@@ -0,0 +1,368 @@
+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2020-11-28 bigmagic first version
+ */
+
+#include "drv_i2c.h"
+#include "drv_gpio.h"
+#include "raspi4.h"
+#include "mbox.h"
+
+/*
+* (3.3v) -1 2-
+* (SDA1/SDA3) -3 4-
+* (SCL1/SCL3) -5 6-
+* (SDA3) -7 8-
+* -9 10-
+* -11 12-
+* -13 14-
+* -15 16-
+* -17 18-
+* -19 20-
+* (SCL4) -21 22-
+* -23 24- (SDA4)
+* -25 26- (SCL4)
+* -27 28-
+* (SCL3) -29 30-
+* (SDA4) -31 32-
+*/
+
+#define DBG_TAG "drv.i2c"
+#define DBG_LVL DBG_INFO
+#include <rtdbg.h>
+
+struct raspi_i2c_hw_config
+{
+ rt_uint32_t bsc_num;
+ rt_uint32_t bsc_rate;
+ rt_uint32_t bsc_address;
+ rt_uint32_t sda_pin;
+ rt_uint32_t scl_pin;
+ rt_uint32_t sda_mode;
+ rt_uint32_t scl_mode;
+};
+
+rt_uint8_t i2c_read_or_write(volatile rt_uint32_t base, rt_uint8_t* buf, rt_uint32_t len, rt_uint8_t flag)
+{
+ rt_uint32_t status;
+ rt_uint32_t remaining = len;
+ rt_uint32_t i = 0;
+ rt_uint8_t reason = I2C_REASON_OK;
+
+ /* Clear FIFO */
+ BSC_C(base) |= (BSC_C_CLEAR_1 & BSC_C_CLEAR_1);
+ /* Clear Status */
+ BSC_S(base) = BSC_S_CLKT | BSC_S_ERR | BSC_S_DONE;
+ /* Set Data Length */
+ BSC_DLEN(base) = len;
+ if (flag)
+ {
+ /* Start read */
+ BSC_C(base) = BSC_C_I2CEN | BSC_C_ST | BSC_C_READ;
+ /* wait for transfer to complete */
+ while (!(BSC_S(base) & BSC_S_DONE))
+ {
+ /* we must empty the FIFO as it is populated and not use any delay */
+ while (remaining && (BSC_S(base) & BSC_S_RXD))
+ {
+ /* Read from FIFO, no barrier */
+ buf[i] = BSC_FIFO(base);
+ i++;
+ remaining--;
+ }
+ }
+ /* transfer has finished - grab any remaining stuff in FIFO */
+ while (remaining && (BSC_S(base) & BSC_S_RXD))
+ {
+ /* Read from FIFO, no barrier */
+ buf[i] = BSC_FIFO(base);
+ i++;
+ remaining--;
+ }
+ }
+ else
+ {
+ LOG_D("i2c%d write start", flag);
+ /* pre populate FIFO with max buffer */
+ while (remaining && (i < BSC_FIFO_SIZE))
+ {
+ BSC_FIFO(base) = buf[i];
+ i++;
+ remaining--;
+ }
+
+ /* Enable device and start transfer */
+ BSC_C(base) = BSC_C_I2CEN | BSC_C_ST;
+
+ /* Transfer is over when BCM2835_BSC_S_DONE */
+ while (!(BSC_S(base) & BSC_S_DONE))
+ {
+ while (remaining && (BSC_S(base) & BSC_S_TXD))
+ {
+ /* Write to FIFO */
+ BSC_FIFO(base) = buf[i];
+ i++;
+ remaining--;
+ }
+ }
+ LOG_D("i2c%d write end", flag);
+ }
+
+ status = BSC_S(base);
+ if (status & BSC_S_ERR)
+ {
+ reason = I2C_REASON_ERROR_NACK;
+ }
+ else if (status & BSC_S_CLKT)
+ {
+ reason = I2C_REASON_ERROR_CLKT;
+ }
+ else if (remaining)
+ {
+ reason = I2C_REASON_ERROR_DATA;
+ }
+ BSC_C(base) |= (BSC_S_DONE & BSC_S_DONE);
+
+ return reason;
+}
+
+static rt_size_t raspi_i2c_mst_xfer(struct rt_i2c_bus_device *bus,
+ struct rt_i2c_msg msgs[],
+ rt_uint32_t num)
+{
+ rt_size_t i;
+ rt_uint8_t reason;
+ RT_ASSERT(bus != RT_NULL);
+
+ struct raspi_i2c_hw_config *i2c_hw_config = (struct raspi_i2c_hw_config*)(bus->priv);
+
+ //Slave Address
+ BSC_A(i2c_hw_config->bsc_address) = msgs->addr;
+
+ for (i = 0; i < num; i++)
+ {
+ if (msgs[i].flags & RT_I2C_RD)
+ reason = i2c_read_or_write(i2c_hw_config->bsc_address, msgs->buf, msgs->len, 1);
+ else
+ reason = i2c_read_or_write(i2c_hw_config->bsc_address, msgs->buf, msgs->len, 0);
+ }
+ return (reason == 0)? i : 0;
+}
+
+static rt_size_t raspi_i2c_slv_xfer(struct rt_i2c_bus_device *bus,
+ struct rt_i2c_msg msgs[],
+ rt_uint32_t num)
+{
+ return 0;
+}
+
+static rt_err_t raspi_i2c_bus_control(struct rt_i2c_bus_device *bus,
+ rt_uint32_t cmd,
+ rt_uint32_t arg)
+{
+ return RT_EOK;
+}
+
+
+static rt_err_t raspi_i2c_configure(struct raspi_i2c_hw_config *cfg)
+{
+ RT_ASSERT(cfg != RT_NULL);
+ rt_uint32_t apb_clock = 0;
+ prev_raspi_pin_mode(cfg->sda_pin, cfg->sda_mode);//sda
+ prev_raspi_pin_mode(cfg->scl_pin, cfg->scl_mode);//scl
+ /* use 0xFFFE mask to limit a max value and round down any odd number */
+ apb_clock = bcm271x_mbox_clock_get_rate(CORE_CLK_ID);
+ rt_uint32_t divider = (apb_clock / cfg->bsc_rate) & 0xFFFE;
+
+ BSC_DIV(cfg->bsc_address) = (rt_uint16_t)divider;
+
+ return RT_EOK;
+}
+
+static const struct rt_i2c_bus_device_ops raspi_i2c_ops =
+{
+ .master_xfer = raspi_i2c_mst_xfer,
+ .slave_xfer = raspi_i2c_slv_xfer,
+ .i2c_bus_control = raspi_i2c_bus_control,
+};
+
+#if defined (BSP_USING_I2C0)
+#define I2C0_BUS_NAME "i2c0"
+static struct raspi_i2c_hw_config hw_device0 =
+{
+ .bsc_num = 0,
+ .bsc_rate = 100000,//100k
+ .bsc_address = BSC0_BASE,
+ .sda_pin = GPIO_PIN_0,
+ .scl_pin = GPIO_PIN_1,
+ .sda_mode = ALT0,
+ .scl_mode = ALT0,
+};
+
+struct rt_i2c_bus_device device0 =
+{
+ .ops = &raspi_i2c_ops,
+ .priv = (void *)&hw_device0,
+};
+#endif
+
+#if defined (BSP_USING_I2C1)
+#define I2C1_BUS_NAME "i2c1"
+static struct raspi_i2c_hw_config hw_device1 =
+{
+ .bsc_num = 1,
+ .bsc_rate = 100000,//100k
+ .bsc_address = BSC1_BASE,
+ .sda_pin = GPIO_PIN_2,
+ .scl_pin = GPIO_PIN_3,
+ .sda_mode = ALT0,
+ .scl_mode = ALT0,
+};
+
+struct rt_i2c_bus_device device1 =
+{
+ .ops = &raspi_i2c_ops,
+ .priv = (void *)&hw_device1,
+};
+#endif
+
+#if defined (BSP_USING_I2C3)
+#define I2C3_BUS_NAME "i2c3"
+static struct raspi_i2c_hw_config hw_device3 =
+{
+ .bsc_num = 3,
+ .bsc_rate = 100000,//100k
+ .bsc_address = BSC3_BASE,
+#ifndef BSP_USING_I2C3_0
+ .sda_pin = GPIO_PIN_2,
+ .scl_pin = GPIO_PIN_3,
+#else
+ .sda_pin = GPIO_PIN_4,
+ .scl_pin = GPIO_PIN_5,
+#endif
+ .sda_mode = ALT5,
+ .scl_mode = ALT5,
+};
+
+struct rt_i2c_bus_device device3 =
+{
+ .ops = &raspi_i2c_ops,
+ .priv = (void *)&hw_device3,
+};
+#endif
+
+#if defined (BSP_USING_I2C4)
+#define I2C4_BUS_NAME "i2c4"
+static struct raspi_i2c_hw_config hw_device4 =
+{
+ .bsc_num = 4,
+ .bsc_rate = 100000,//100k
+ .bsc_address = BSC4_BASE,
+#ifdef BSP_USING_I2C4_0
+ .sda_pin = GPIO_PIN_6,
+ .scl_pin = GPIO_PIN_7,
+#else
+ .sda_pin = GPIO_PIN_8,
+ .scl_pin = GPIO_PIN_9,
+#endif
+ .sda_mode = ALT5,
+ .scl_mode = ALT5,
+};
+
+struct rt_i2c_bus_device device4 =
+{
+ .ops = &raspi_i2c_ops,
+ .priv = (void *)&hw_device4,
+};
+#endif
+
+#if defined (BSP_USING_I2C5)
+#define I2C5_BUS_NAME "i2c5"
+static struct raspi_i2c_hw_config hw_device5 =
+{
+ .bsc_num = 5,
+ .bsc_rate = 100000,//100k
+ .bsc_address = BSC5_BASE,
+#ifdef BSP_USING_I2C5_0
+ .sda_pin = GPIO_PIN_10,
+ .scl_pin = GPIO_PIN_11,
+#else
+ .sda_pin = GPIO_PIN_12,
+ .scl_pin = GPIO_PIN_13,
+#endif
+ .sda_mode = ALT5,
+ .scl_mode = ALT5,
+};
+
+struct rt_i2c_bus_device device5 =
+{
+ .ops = &raspi_i2c_ops,
+ .priv = (void *)&hw_device5,
+};
+#endif
+
+#if defined (BSP_USING_I2C6)
+#define I2C6_BUS_NAME "i2c6"
+static struct raspi_i2c_hw_config hw_device6 =
+{
+ .bsc_num = 6,
+ .bsc_rate = 100000,//100k
+ .bsc_address = BSC6_BASE,
+#ifdef BSP_USING_I2C5_0
+ .sda_pin = GPIO_PIN_0,
+ .scl_pin = GPIO_PIN_1,
+#else
+ .sda_pin = GPIO_PIN_22,
+ .scl_pin = GPIO_PIN_23,
+#endif
+ .sda_mode = ALT5,
+ .scl_mode = ALT5,
+};
+
+struct rt_i2c_bus_device device6 =
+{
+ .ops = &raspi_i2c_ops,
+ .priv = (void *)&hw_device6,
+};
+#endif
+
+int rt_hw_i2c_init(void)
+{
+#if defined(BSP_USING_I2C0)
+ raspi_i2c_configure(&hw_device0);
+ rt_i2c_bus_device_register(&device0, I2C0_BUS_NAME);
+#endif
+
+#if defined(BSP_USING_I2C1)
+ raspi_i2c_configure(&hw_device1);
+ rt_i2c_bus_device_register(&device1, I2C1_BUS_NAME);
+#endif
+
+#if defined(BSP_USING_I2C3)
+ raspi_i2c_configure(&hw_device3);
+ rt_i2c_bus_device_register(&device3, I2C3_BUS_NAME);
+#endif
+
+#if defined(BSP_USING_I2C4)
+ raspi_i2c_configure(&hw_device4);
+ rt_i2c_bus_device_register(&device4, I2C4_BUS_NAME);
+#endif
+
+#if defined(BSP_USING_I2C5)
+ raspi_i2c_configure(&hw_device5);
+ rt_i2c_bus_device_register(&device5, I2C5_BUS_NAME);
+#endif
+
+#if defined(BSP_USING_I2C6)
+ raspi_i2c_configure(&hw_device6);
+ rt_i2c_bus_device_register(&device6, I2C6_BUS_NAME);
+#endif
+ return 0;
+}
+
+INIT_DEVICE_EXPORT(rt_hw_i2c_init);
diff --git a/bsp/raspberry-pi/raspi4-32/driver/drv_i2c.h b/bsp/raspberry-pi/raspi4-32/driver/drv_i2c.h
new file mode 100644
index 0000000000..e02c8887f0
--- /dev/null
+++ b/bsp/raspberry-pi/raspi4-32/driver/drv_i2c.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2020-11-28 bigmagic first version
+ */
+
+#ifndef __DRV_I2C_H__
+#define __DRV_I2C_H__
+
+#include <rthw.h>
+
+#define BSC_C(BASE) __REG32(BASE + 0x0000) /* BSC Master Control */
+#define BSC_S(BASE) __REG32(BASE + 0x0004) /* BSC Master Status */
+#define BSC_DLEN(BASE) __REG32(BASE + 0x0008) /* BSC Master Data Length */
+#define BSC_A(BASE) __REG32(BASE + 0x000c) /* BSC Master Slave Address */
+#define BSC_FIFO(BASE) __REG32(BASE + 0x0010) /* BSC Master Data FIFO */
+#define BSC_DIV(BASE) __REG32(BASE + 0x0014) /* BSC Master Clock Divider */
+#define BSC_DEL(BASE) __REG32(BASE + 0x0018) /* BSC Master Data Delay */
+#define BSC_CLKT(BASE) __REG32(BASE + 0x001c) /* BSC Master Clock Stretch Timeout */
+
+/* Register masks for C Register */
+#define BSC_C_I2CEN (0x00008000) /* I2C Enable, 0 = disabled, 1 = enabled */
+#define BSC_C_INTR (0x00000400) /* Interrupt on RX */
+#define BSC_C_INTT (0x00000200) /* Interrupt on TX */
+#define BSC_C_INTD (0x00000100) /* Interrupt on DONE */
+#define BSC_C_ST (0x00000080) /* Start transfer, 1 = Start a new transfer */
+#define BSC_C_CLEAR_1 (0x00000020) /* Clear FIFO Clear */
+#define BSC_C_CLEAR_2 (0x00000010) /* Clear FIFO Clear */
+#define BSC_C_READ (0x00000001) /* Read transfer */
+
+/* Register masks for S Register */
+#define BSC_S_CLKT (0x00000200) /* Clock stretch timeout */
+#define BSC_S_ERR (0x00000100) /* ACK error */
+#define BSC_S_RXF (0x00000080) /* RXF FIFO full, 0 = FIFO is not full, 1 = FIFO is full */
+#define BSC_S_TXE (0x00000040) /* TXE FIFO full, 0 = FIFO is not full, 1 = FIFO is full */
+#define BSC_S_RXD (0x00000020) /* RXD FIFO contains data */
+#define BSC_S_TXD (0x00000010) /* TXD FIFO can accept data */
+#define BSC_S_RXR (0x00000008) /* RXR FIFO needs reading (full) */
+#define BSC_S_TXW (0x00000004) /* TXW FIFO needs writing (full) */
+#define BSC_S_DONE (0x00000002) /* Transfer DONE */
+#define BSC_S_TA (0x00000001) /* Transfer Active */
+
+#define BSC_FIFO_SIZE (16) /* BSC FIFO size */
+
+typedef enum
+{
+ I2C_REASON_OK = 0x00, /* Success */
+ I2C_REASON_ERROR_NACK = 0x01, /* Received a NACK */
+ I2C_REASON_ERROR_CLKT = 0x02, /* Received Clock Stretch Timeout */
+ I2C_REASON_ERROR_DATA = 0x04 /* Not all data is sent / received */
+} i2c_reason_codes;
+
+int rt_hw_i2c_init(void);
+
+#endif
diff --git a/bsp/raspberry-pi/raspi4-32/driver/raspi4.h b/bsp/raspberry-pi/raspi4-32/driver/raspi4.h
index 9db1252bc0..72e212ff85 100644
--- a/bsp/raspberry-pi/raspi4-32/driver/raspi4.h
+++ b/bsp/raspberry-pi/raspi4-32/driver/raspi4.h
@@ -154,6 +154,23 @@ typedef enum {
#define ETH_IRQ (160+29)
+//I2C
+#define BSC0_BASE_OFFSET (0x205000)
+#define BSC1_BASE_OFFSET (0x804000)
+#define BSC3_BASE_OFFSET (0x205600)
+#define BSC4_BASE_OFFSET (0x205800)
+#define BSC5_BASE_OFFSET (0x205A80)
+#define BSC6_BASE_OFFSET (0x205C00)
+
+//BSC2 and BSC7 masters are dedicated for use by the
+//HDMI interfaces and should not be accessed byuser programs.
+#define BSC0_BASE (PER_BASE + BSC0_BASE_OFFSET)
+#define BSC1_BASE (PER_BASE + BSC1_BASE_OFFSET)
+#define BSC3_BASE (PER_BASE + BSC3_BASE_OFFSET)
+#define BSC4_BASE (PER_BASE + BSC4_BASE_OFFSET)
+#define BSC5_BASE (PER_BASE + BSC5_BASE_OFFSET)
+#define BSC6_BASE (PER_BASE + BSC6_BASE_OFFSET)
+
/* the basic constants and interfaces needed by gic */
rt_inline rt_uint32_t platform_get_gic_dist_base(void)
{
diff --git a/bsp/raspberry-pi/raspi4-32/rtconfig.h b/bsp/raspberry-pi/raspi4-32/rtconfig.h
index 031b5c43ba..a6078b7b1e 100644
--- a/bsp/raspberry-pi/raspi4-32/rtconfig.h
+++ b/bsp/raspberry-pi/raspi4-32/rtconfig.h
@@ -100,6 +100,8 @@
#define RT_USING_SERIAL
#define RT_SERIAL_USING_DMA
#define RT_SERIAL_RB_BUFSZ 64
+#define RT_USING_I2C
+#define RT_USING_I2C_BITOPS
#define RT_USING_PIN
#define RT_USING_SDIO
#define RT_SDIO_STACK_SIZE 512
@@ -258,6 +260,8 @@
#define BSP_USING_SPI0_BUS
#define BSP_USING_SPI0_DEVICE0
#define BSP_USING_SPI0_DEVICE1
+#define BSP_USING_I2C
+#define BSP_USING_I2C3
#define BSP_USING_CORETIMER
#define BSP_USING_WDT
#define BSP_USING_ETH