header files: modify rom code and soc header files

1. timer reg file for both time group 0 and time group 1, not only timer group 0
2. fix bug that io mux header file mismatch with chip
3. fix bug that some BASE address not correct
4. add some static function to eagle.fpga32.rom.addr.v7.ld
5. add interrupts usage table
6. add some comments for rom code functions

components/esp32/include/rom/efuse.h

@@ -18,10 +18,71 @@
 extern "C" {
 #endif
 
-void ets_efuse_read_op(void);
+/** \defgroup efuse_APIs efuse APIs
+  * @brief     ESP32 efuse read/write APIs
+  * @attention 
+  *            
+  */
 
+/** @addtogroup efuse_APIs
+  * @{
+  */
+
+/**
+  * @brief  Do a efuse read operation, to update the efuse value to efuse read registers.
+  *
+  * @param  null
+  *
+  * @return null
+  */
+void ets_efuse_read_op(viid);
+
+/**
+  * @brief  Do a efuse write operation, to update efuse write registers to efuse, then you need call ets_efuse_read_op again.
+  *
+  * @param  null
+  *
+  * @return null
+  */
 void ets_efuse_program_op(void);
 
+/**
+  * @brief  Read 8M Analog Clock value(8 bit) in efuse, the analog clock will not change with temperature.
+  *         It can be used to test the external xtal frequency, do not touch this efuse field.
+  *
+  * @param  null
+  *
+  * @return u32: 1 for 100KHZ.
+  */
+u32 ets_efuse_get_8M_clock(void);
+
+/**
+  * @brief  Read spi pad configuration, show gpio number of flash pad, includes 5 pads.
+  *
+  * @param  null
+  *
+  * @return uint32_t: 0, invalid, flash pad decided by strapping 
+  *		 else, bit[5:0] spiclk, bit[11:6] spiq, bit[17:12] spid, bit[23:18] spics0, bit[29:24] spihd
+  */
+
+uint32_t ets_efuse_get_spiconfig(void);
+
+/**
+  * @brief  A crc8 algorithm used in efuse check.
+  *
+  * @param  unsigned char const * p : Pointer to original data.
+  *
+  * @param  unsigned int len : Data length in byte.
+  *
+  * @return unsigned char: Crc value.
+  */
+unsigned char esp_crc8(unsigned char const * p, unsigned int len);
+
+/**
+  * @}
+  */
+
+
 #ifdef __cplusplus
 }
 #endif