Implement LP0-Entry BPMP Firmware

exosphere/bpmpfw/src/i2c.h

@@ -0,0 +1,34 @@
+#ifndef EXOSPHERE_BPMPFW_I2C_H
+#define EXOSPHERE_BPMPFW_I2C_H
+
+#include <stdint.h>
+
+/* I2C_BASE = I2C4. */
+#define I2C_BASE (0x7000D000)
+
+#define MAKE_I2C_REG(ofs) ((*((volatile uint32_t *)(I2C_BASE + ofs))))
+
+#define I2C_I2C_CNFG_0                       MAKE_I2C_REG(0x000)
+
+#define I2C_I2C_CMD_ADDR0_0                  MAKE_I2C_REG(0x004)
+
+#define I2C_I2C_CMD_DATA1_0                  MAKE_I2C_REG(0x00C)
+
+#define I2C_I2C_STATUS_0                     MAKE_I2C_REG(0x01C)
+
+#define I2C_INTERRUPT_STATUS_REGISTER_0      MAKE_I2C_REG(0x068)
+
+#define I2C_I2C_CLK_DIVISOR_REGISTER_0       MAKE_I2C_REG(0x06C)
+
+#define I2C_I2C_BUS_CLEAR_CONFIG_0           MAKE_I2C_REG(0x084)
+
+#define I2C_I2C_BUS_CLEAR_STATUS_0           MAKE_I2C_REG(0x088)
+
+
+#define I2C_I2C_CONFIG_LOAD_0                MAKE_I2C_REG(0x08C)
+
+void i2c_init(void);
+
+int i2c_send_reset_cmd(void);
+
+#endif