zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/boot/common/src/loader/include/asm/arch-m0/cpu.h b/boot/common/src/loader/include/asm/arch-m0/cpu.h
new file mode 100644
index 0000000..f1bc765
--- /dev/null
+++ b/boot/common/src/loader/include/asm/arch-m0/cpu.h
@@ -0,0 +1,41 @@
+/*******************************************************************************
+ * Copyright (C) 2016, ZXIC Corporation.
+ *
+ * File Name:    
+ * File Mark:    
+ * Description:  
+ * Others:        
+ * Version:       v1.0
+ * Author:        zhouqi
+ * Date:          2013-4-2
+ * History 1:      
+ *     Date: 
+ *     Version:
+ *     Author: 
+ *     Modification:  
+ * History 2: 
+  ********************************************************************************/
+#ifndef __CPU_H__
+#define __CPU_H__
+#include <config.h>
+
+
+#define SYS_BOOTSEL_BASE    0x0013b004		
+
+#define SYS_IRAM0_BASE      0x82000000          /* 120k */
+#define SYS_IRAM1_BASE      0x100000            /* 64k *//* for A9 start */
+#define SYS_IRAM2_BASE      0x80000             /* 64k */
+
+#define CPU_A9_SUBSYS_CFG      0x013B138        /* for A9 reset */
+#define     CPU_UFI_SW_RSTEN      0xf   
+
+#define CORE_OUTPUT_SWITCH_CONFIG_REG (0x0013a000 + 0x0AC)
+#define CORE_OUTPUT_SW_CONFIG_REG1  (0x0013a000 + 0x0B8)
+#define CORE_OUTPUT_SW_CONFIG_REG2  (0x0013a000 + 0x0BC)
+
+#define USB_RESET	(0x0013B080)
+
+extern void timer_init(void);
+
+
+#endif /*__CPU_H__*/
diff --git a/boot/common/src/loader/include/asm/arch-m0/denali.h b/boot/common/src/loader/include/asm/arch-m0/denali.h
new file mode 100644
index 0000000..35dbec8
--- /dev/null
+++ b/boot/common/src/loader/include/asm/arch-m0/denali.h
@@ -0,0 +1,484 @@
+/*
+ * NAND Flash Controller Device Driver
+ * Copyright (c) 2009 - 2010, Intel Corporation and its suppliers.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+#ifndef _DENALI_H_
+#define _DENALI_H_
+
+
+#define NAND_BASE                   	 	0x1214000		// ¼Ä´æÆ÷»ùµØÖ·
+#define NAND_DATA                    		0x1215000		// Êý¾Ý»ùµØÖ·
+#define NAND_DATA_10                        (NAND_DATA + 0x10)
+
+#define DEVICE_RESET				(NAND_BASE + 0x0)
+#define     DEVICE_RESET__BANK0				0x0001
+#define     DEVICE_RESET__BANK1				0x0002
+#define     DEVICE_RESET__BANK2				0x0004
+#define     DEVICE_RESET__BANK3				0x0008
+
+#define TRANSFER_SPARE_REG			(NAND_BASE + 0x10)
+#define     TRANSFER_SPARE_REG__FLAG			0x0001
+#define     TRANSFER_MAIN_REG__FLAG			    0x0000
+
+#define LOAD_WAIT_CNT				(NAND_BASE + 0x20)
+#define     LOAD_WAIT_CNT__VALUE			0xffff
+
+#define PROGRAM_WAIT_CNT			(NAND_BASE + 0x30)
+#define     PROGRAM_WAIT_CNT__VALUE			0xffff
+
+#define ERASE_WAIT_CNT				(NAND_BASE + 0x40)
+#define     ERASE_WAIT_CNT__VALUE			0xffff
+
+#define INT_MON_CYCCNT				(NAND_BASE + 0x50)
+#define     INT_MON_CYCCNT__VALUE			0xffff
+
+#define RB_PIN_ENABLED				(NAND_BASE + 0x60)
+#define     RB_PIN_ENABLED__BANK0			0x0001
+#define     RB_PIN_ENABLED__BANK1			0x0002
+#define     RB_PIN_ENABLED__BANK2			0x0004
+#define     RB_PIN_ENABLED__BANK3			0x0008
+
+#define MULTIPLANE_OPERATION			(NAND_BASE + 0x70)
+#define     MULTIPLANE_OPERATION__FLAG			0x0001
+
+#define MULTIPLANE_READ_ENABLE			(NAND_BASE + 0x80)
+#define     MULTIPLANE_READ_ENABLE__FLAG		0x0001
+
+#define COPYBACK_DISABLE			(NAND_BASE + 0x90)
+#define     COPYBACK_DISABLE__FLAG			0x0001
+
+#define CACHE_WRITE_ENABLE			(NAND_BASE + 0xa0)
+#define     CACHE_WRITE_ENABLE__FLAG			0x0001
+
+#define CACHE_READ_ENABLE			(NAND_BASE + 0xb0)
+#define     CACHE_READ_ENABLE__FLAG			0x0001
+
+#define PREFETCH_MODE				(NAND_BASE + 0xc0)
+#define     PREFETCH_MODE__PREFETCH_EN			0x0001
+#define     PREFETCH_MODE__PREFETCH_BURST_LENGTH	0xfff0
+
+#define CHIP_ENABLE_DONT_CARE			(NAND_BASE + 0xd0)
+#define     CHIP_EN_DONT_CARE__FLAG			0x01
+
+#define ECC_ENABLE				(NAND_BASE + 0xe0)
+#define     ECC_ENABLE__FLAG				0x0001
+#define     ECC_DISABLE__FLAG				0x0000
+
+#define GLOBAL_INT_ENABLE			(NAND_BASE + 0xf0)
+#define     GLOBAL_INT_EN_FLAG				0x01
+
+#define WE_2_RE					(NAND_BASE + 0x100)
+#define     WE_2_RE__VALUE				0x003f
+
+#define ADDR_2_DATA				(NAND_BASE + 0x110)
+#define     ADDR_2_DATA__VALUE				0x003f
+
+#define RE_2_WE					(NAND_BASE + 0x120)
+#define     RE_2_WE__VALUE				0x003f
+
+#define ACC_CLKS				(NAND_BASE + 0x130)
+#define     ACC_CLKS__VALUE				0x000f
+
+#define NUMBER_OF_PLANES			(NAND_BASE + 0x140)
+#define     NUMBER_OF_PLANES__VALUE			0x0007
+
+#define PAGES_PER_BLOCK				(NAND_BASE + 0x150)
+#define     PAGES_PER_BLOCK__VALUE			0xffff
+
+#define DEVICE_WIDTH				(NAND_BASE + 0x160)
+#define     DEVICE_WIDTH__VALUE				0x0003
+
+#define DEVICE_MAIN_AREA_SIZE			(NAND_BASE + 0x170)
+#define     DEVICE_MAIN_AREA_SIZE__VALUE		0xffff
+
+#define DEVICE_SPARE_AREA_SIZE			(NAND_BASE + 0x180)
+#define     DEVICE_SPARE_AREA_SIZE__VALUE		0xffff
+
+#define TWO_ROW_ADDR_CYCLES			(NAND_BASE + 0x190)
+#define     TWO_ROW_ADDR_CYCLES__FLAG			0x0001
+
+#define MULTIPLANE_ADDR_RESTRICT		(NAND_BASE + 0x1a0)
+#define     MULTIPLANE_ADDR_RESTRICT__FLAG		0x0001
+
+#define ECC_CORRECTION				(NAND_BASE + 0x1b0)
+#define     ECC_CORRECTION__VALUE			0x001f
+
+#define READ_MODE				(NAND_BASE + 0x1c0)
+#define     READ_MODE__VALUE				0x000f
+
+#define WRITE_MODE				(NAND_BASE + 0x1d0)
+#define     WRITE_MODE__VALUE				0x000f
+
+#define COPYBACK_MODE				(NAND_BASE + 0x1e0)
+#define     COPYBACK_MODE__VALUE			0x000f
+
+#define RDWR_EN_LO_CNT				(NAND_BASE + 0x1f0)
+#define     RDWR_EN_LO_CNT__VALUE			0x001f
+
+#define RDWR_EN_HI_CNT				(NAND_BASE + 0x200)
+#define     RDWR_EN_HI_CNT__VALUE			0x001f
+
+#define MAX_RD_DELAY				(NAND_BASE + 0x210)
+#define     MAX_RD_DELAY__VALUE				0x000f
+
+#define CS_SETUP_CNT				(NAND_BASE + 0x220)
+#define     CS_SETUP_CNT__VALUE				0x001f
+
+#define SPARE_AREA_SKIP_BYTES			(NAND_BASE + 0x230)
+#define     SPARE_AREA_SKIP_BYTES__VALUE		0x003f
+
+#define SPARE_AREA_MARKER			(NAND_BASE + 0x240)
+#define     SPARE_AREA_MARKER__VALUE			0xffff
+
+#define DEVICES_CONNECTED			(NAND_BASE + 0x250)
+#define     DEVICES_CONNECTED__VALUE			0x0007
+
+#define DIE_MASK				(NAND_BASE + 0x260)
+#define     DIE_MASK__VALUE				0x00ff
+
+#define FIRST_BLOCK_OF_NEXT_PLANE		(NAND_BASE + 0x270)
+#define     FIRST_BLOCK_OF_NEXT_PLANE__VALUE		0xffff
+
+#define WRITE_PROTECT				(NAND_BASE + 0x280)
+#define     WRITE_PROTECT__FLAG				0x0001
+
+#define RE_2_RE					(NAND_BASE + 0x290)
+#define     RE_2_RE__VALUE				0x003f
+
+#define MANUFACTURER_ID				(NAND_BASE + 0x300)
+#define     MANUFACTURER_ID__VALUE			0x00ff
+
+#define DEVICE_ID				(NAND_BASE + 0x310)
+#define     DEVICE_ID__VALUE				0x00ff
+
+#define DEVICE_PARAM_0				(NAND_BASE + 0x320)
+#define     DEVICE_PARAM_0__VALUE			0x00ff
+
+#define DEVICE_PARAM_1				(NAND_BASE + 0x330)
+#define     DEVICE_PARAM_1__VALUE			0x00ff
+
+#define DEVICE_PARAM_2				(NAND_BASE + 0x340)
+#define     DEVICE_PARAM_2__VALUE			0x00ff
+
+#define LOGICAL_PAGE_DATA_SIZE			(NAND_BASE + 0x350)
+#define     LOGICAL_PAGE_DATA_SIZE__VALUE		0xffff
+
+#define LOGICAL_PAGE_SPARE_SIZE			(NAND_BASE + 0x360)
+#define     LOGICAL_PAGE_SPARE_SIZE__VALUE		0xffff
+
+#define REVISION				(NAND_BASE + 0x370)
+#define     REVISION__VALUE				0xffff
+
+#define ONFI_DEVICE_FEATURES			(NAND_BASE + 0x380)
+#define     ONFI_DEVICE_FEATURES__VALUE			0x003f
+
+#define ONFI_OPTIONAL_COMMANDS			(NAND_BASE + 0x390)
+#define     ONFI_OPTIONAL_COMMANDS__VALUE		0x003f
+
+#define ONFI_TIMING_MODE			(NAND_BASE + 0x3a0)
+#define     ONFI_TIMING_MODE__VALUE			0x003f
+
+#define ONFI_PGM_CACHE_TIMING_MODE		(NAND_BASE + 0x3b0)
+#define     ONFI_PGM_CACHE_TIMING_MODE__VALUE		0x003f
+
+#define ONFI_DEVICE_NO_OF_LUNS			(NAND_BASE + 0x3c0)
+#define     ONFI_DEVICE_NO_OF_LUNS__NO_OF_LUNS		0x00ff
+#define     ONFI_DEVICE_NO_OF_LUNS__ONFI_DEVICE		0x0100
+
+#define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_L	(NAND_BASE + 0x3d0)
+#define     ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_L__VALUE	0xffff
+
+#define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_U	(NAND_BASE + 0x3e0)
+#define     ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_U__VALUE	0xffff
+
+#define FEATURES					(NAND_BASE + 0x3f0)
+#define     FEATURES__N_BANKS				0x0003
+#define     FEATURES__ECC_MAX_ERR			0x003c
+#define     FEATURES__DMA				0x0040
+#define     FEATURES__CMD_DMA				0x0080
+#define     FEATURES__PARTITION				0x0100
+#define     FEATURES__XDMA_SIDEBAND			0x0200
+#define     FEATURES__GPREG				0x0400
+#define     FEATURES__INDEX_ADDR			0x0800
+
+#define TRANSFER_MODE				(NAND_BASE + 0x400)
+#define     TRANSFER_MODE__VALUE			0x0003
+
+#define INTR_STATUS(__bank)	(NAND_BASE + 0x410 + ((__bank) * 0x50))
+#define INTR_EN(__bank)		(NAND_BASE + 0x420 + ((__bank) * 0x50))
+
+
+#define     INTR_STATUS__ECC_ERR			0x0001
+#define     INTR_STATUS__ECC_TRANSACTION_DONE		0x0002
+#define     INTR_STATUS__DMA_CMD_COMP			0x0004
+#define     INTR_STATUS__TIME_OUT			0x0008
+#define     INTR_STATUS__PROGRAM_FAIL			0x0010
+#define     INTR_STATUS__ERASE_FAIL			0x0020
+#define     INTR_STATUS__LOAD_COMP			0x0040
+#define     INTR_STATUS__PROGRAM_COMP			0x0080
+#define     INTR_STATUS__ERASE_COMP			0x0100
+#define     INTR_STATUS__PIPE_CPYBCK_CMD_COMP		0x0200
+#define     INTR_STATUS__LOCKED_BLK			0x0400
+#define     INTR_STATUS__UNSUP_CMD			0x0800
+#define     INTR_STATUS__INT_ACT			0x1000
+#define     INTR_STATUS__RST_COMP			0x2000
+#define     INTR_STATUS__PIPE_CMD_ERR			0x4000
+#define     INTR_STATUS__PAGE_XFER_INC			0x8000
+
+#define     INTR_EN__ECC_TRANSACTION_DONE		0x0001
+#define     INTR_EN__ECC_ERR				0x0002
+#define     INTR_EN__DMA_CMD_COMP			0x0004
+#define     INTR_EN__TIME_OUT				0x0008
+#define     INTR_EN__PROGRAM_FAIL			0x0010
+#define     INTR_EN__ERASE_FAIL				0x0020
+#define     INTR_EN__LOAD_COMP				0x0040
+#define     INTR_EN__PROGRAM_COMP			0x0080
+#define     INTR_EN__ERASE_COMP				0x0100
+#define     INTR_EN__PIPE_CPYBCK_CMD_COMP		0x0200
+#define     INTR_EN__LOCKED_BLK				0x0400
+#define     INTR_EN__UNSUP_CMD				0x0800
+#define     INTR_EN__INT_ACT				0x1000
+#define     INTR_EN__RST_COMP				0x2000
+#define     INTR_EN__PIPE_CMD_ERR			0x4000
+#define     INTR_EN__PAGE_XFER_INC			0x8000
+
+#define PAGE_CNT(__bank)	(NAND_BASE + 0x430 + ((__bank) * 0x50))
+#define ERR_PAGE_ADDR(__bank)	(NAND_BASE + 0x440 + ((__bank) * 0x50))
+#define ERR_BLOCK_ADDR(__bank)	(NAND_BASE + 0x450 + ((__bank) * 0x50))
+
+#define DATA_INTR				(NAND_BASE + 0x550)
+#define     DATA_INTR__WRITE_SPACE_AV			0x0001
+#define     DATA_INTR__READ_DATA_AV			0x0002
+
+#define DATA_INTR_EN				(NAND_BASE + 0x560)
+#define     DATA_INTR_EN__WRITE_SPACE_AV		0x0001
+#define     DATA_INTR_EN__READ_DATA_AV			0x0002
+
+#define GPREG_0					(NAND_BASE + 0x570)
+#define     GPREG_0__VALUE				0xffff
+
+#define GPREG_1					(NAND_BASE + 0x580)
+#define     GPREG_1__VALUE				0xffff
+
+#define GPREG_2					(NAND_BASE + 0x590)
+#define     GPREG_2__VALUE				0xffff
+
+#define GPREG_3					(NAND_BASE + 0x5a0)
+#define     GPREG_3__VALUE				0xffff
+
+#define ECC_THRESHOLD				(NAND_BASE + 0x600)
+#define     ECC_THRESHOLD__VALUE			0x03ff
+
+#define ECC_ERROR_BLOCK_ADDRESS			(NAND_BASE + 0x610)
+#define     ECC_ERROR_BLOCK_ADDRESS__VALUE		0xffff
+
+#define ECC_ERROR_PAGE_ADDRESS			(NAND_BASE + 0x620)
+#define     ECC_ERROR_PAGE_ADDRESS__VALUE		0x0fff
+#define     ECC_ERROR_PAGE_ADDRESS__BANK		0xf000
+
+#define ECC_ERROR_ADDRESS			(NAND_BASE + 0x630)
+#define     ECC_ERROR_ADDRESS__OFFSET			0x0fff
+#define     ECC_ERROR_ADDRESS__SECTOR_NR		0xf000
+
+#define ERR_CORRECTION_INFO			(NAND_BASE + 0x640)
+#define     ERR_CORRECTION_INFO__BYTEMASK		0x00ff
+#define     ERR_CORRECTION_INFO__DEVICE_NR		0x0f00
+#define     ERR_CORRECTION_INFO__ERROR_TYPE		0x4000
+#define     ERR_CORRECTION_INFO__LAST_ERR_INFO		0x8000
+
+#define DMA_ENABLE				(NAND_BASE + 0x700)
+#define     DMA_ENABLE__FLAG				0x0001
+#define     DMA_DISABLE__FLAG				0x0000
+
+#define IGNORE_ECC_DONE				(NAND_BASE + 0x710)
+#define     IGNORE_ECC_DONE__FLAG			0x0001
+
+#define DMA_INTR				(NAND_BASE + 0x720)
+#define     DMA_INTR__TARGET_ERROR			0x0001
+#define     DMA_INTR__DESC_COMP_CHANNEL0		0x0002
+#define     DMA_INTR__DESC_COMP_CHANNEL1		0x0004
+#define     DMA_INTR__DESC_COMP_CHANNEL2		0x0008
+#define     DMA_INTR__DESC_COMP_CHANNEL3		0x0010
+#define     DMA_INTR__MEMCOPY_DESC_COMP		0x0020
+
+#define DMA_INTR_EN				(NAND_BASE + 0x730)
+#define     DMA_INTR_EN__TARGET_ERROR			0x0001
+#define     DMA_INTR_EN__DESC_COMP_CHANNEL0		0x0002
+#define     DMA_INTR_EN__DESC_COMP_CHANNEL1		0x0004
+#define     DMA_INTR_EN__DESC_COMP_CHANNEL2		0x0008
+#define     DMA_INTR_EN__DESC_COMP_CHANNEL3		0x0010
+#define     DMA_INTR_EN__MEMCOPY_DESC_COMP		0x0020
+
+#define TARGET_ERR_ADDR_LO			(NAND_BASE + 0x740)
+#define     TARGET_ERR_ADDR_LO__VALUE			0xffff
+
+#define TARGET_ERR_ADDR_HI			(NAND_BASE + 0x750)
+#define     TARGET_ERR_ADDR_HI__VALUE			0xffff
+
+#define CHNL_ACTIVE				(NAND_BASE + 0x760)
+#define     CHNL_ACTIVE__CHANNEL0			0x0001
+#define     CHNL_ACTIVE__CHANNEL1			0x0002
+#define     CHNL_ACTIVE__CHANNEL2			0x0004
+#define     CHNL_ACTIVE__CHANNEL3			0x0008
+
+#define ACTIVE_SRC_ID				(NAND_BASE + 0x800)
+#define     ACTIVE_SRC_ID__VALUE			0x00ff
+
+#define PTN_INTR					(NAND_BASE + 0x810)
+#define     PTN_INTR__CONFIG_ERROR			0x0001
+#define     PTN_INTR__ACCESS_ERROR_BANK0		0x0002
+#define     PTN_INTR__ACCESS_ERROR_BANK1		0x0004
+#define     PTN_INTR__ACCESS_ERROR_BANK2		0x0008
+#define     PTN_INTR__ACCESS_ERROR_BANK3		0x0010
+#define     PTN_INTR__REG_ACCESS_ERROR			0x0020
+
+#define PTN_INTR_EN				(NAND_BASE + 0x820)
+#define     PTN_INTR_EN__CONFIG_ERROR			0x0001
+#define     PTN_INTR_EN__ACCESS_ERROR_BANK0		0x0002
+#define     PTN_INTR_EN__ACCESS_ERROR_BANK1		0x0004
+#define     PTN_INTR_EN__ACCESS_ERROR_BANK2		0x0008
+#define     PTN_INTR_EN__ACCESS_ERROR_BANK3		0x0010
+#define     PTN_INTR_EN__REG_ACCESS_ERROR		0x0020
+
+#define PERM_SRC_ID(__bank)	(NAND_BASE + 0x830 + ((__bank) * 0x40))
+#define     PERM_SRC_ID__SRCID				0x00ff
+#define     PERM_SRC_ID__DIRECT_ACCESS_ACTIVE		0x0800
+#define     PERM_SRC_ID__WRITE_ACTIVE			0x2000
+#define     PERM_SRC_ID__READ_ACTIVE			0x4000
+#define     PERM_SRC_ID__PARTITION_VALID		0x8000
+
+#define MIN_BLK_ADDR(__bank)	(NAND_BASE + 0x840 + ((__bank) * 0x40))
+#define     MIN_BLK_ADDR__VALUE				0xffff
+
+#define MAX_BLK_ADDR(__bank)	(NAND_BASE + 0x850 + ((__bank) * 0x40))
+#define     MAX_BLK_ADDR__VALUE				0xffff
+
+#define MIN_MAX_BANK(__bank)	(NAND_BASE + 0x860 + ((__bank) * 0x40))
+#define     MIN_MAX_BANK__MIN_VALUE			0x0003
+#define     MIN_MAX_BANK__MAX_VALUE			0x000c
+
+
+/* ffsdefs.h */
+#define CLEAR 0                 /*use this to clear a field instead of "fail"*/
+#define SET   1                 /*use this to set a field instead of "pass"*/
+#define FAIL 1                  /*failed flag*/
+#define PASS 0                  /*success flag*/
+#define ERR -1                  /*error flag*/
+
+/* lld.h */
+#define GOOD_BLOCK 0
+#define DEFECTIVE_BLOCK 1
+#define READ_ERROR 2
+
+#define CLK_X  5
+#define CLK_MULTI 4
+
+/* spectraswconfig.h */
+#define CMD_DMA 0
+
+#define SPECTRA_PARTITION_ID    0
+/**** Block Table and Reserved Block Parameters *****/
+#define SPECTRA_START_BLOCK     3
+#define NUM_FREE_BLOCKS_GATE    30
+
+/* KBV - Updated to LNW scratch register address */
+#define SCRATCH_REG_ADDR    CONFIG_MTD_NAND_DENALI_SCRATCH_REG_ADDR
+#define SCRATCH_REG_SIZE    64
+
+#define GLOB_HWCTL_DEFAULT_BLKS    2048
+
+#define SUPPORT_15BITECC        1
+#define SUPPORT_8BITECC         1
+
+#define CUSTOM_CONF_PARAMS      0
+
+#define ONFI_BLOOM_TIME         1
+#define MODE5_WORKAROUND        0
+
+/* lld_nand.h */
+/*
+ * NAND Flash Controller Device Driver
+ * Copyright (c) 2009, Intel Corporation and its suppliers.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#define MODE_00    0x00000000
+#define MODE_01    0x04000000
+#define MODE_10    0x08000000
+#define MODE_11    0x0C000000
+
+/* These constants are defined by the driver to enable common driver
+ * configuration options. */
+#define SPARE_ACCESS		0x41
+#define MAIN_ACCESS		0x42
+#define MAIN_SPARE_ACCESS	0x43
+
+#define DATA_TRANSFER_MODE              0
+#define PROTECTION_PER_BLOCK            1
+#define LOAD_WAIT_COUNT                 2
+#define PROGRAM_WAIT_COUNT              3
+#define ERASE_WAIT_COUNT                4
+#define INT_MONITOR_CYCLE_COUNT         5
+#define READ_BUSY_PIN_ENABLED           6
+#define MULTIPLANE_OPERATION_SUPPORT    7
+#define PRE_FETCH_MODE                  8
+#define CE_DONT_CARE_SUPPORT            9
+#define COPYBACK_SUPPORT                10
+#define CACHE_WRITE_SUPPORT             11
+#define CACHE_READ_SUPPORT              12
+#define NUM_PAGES_IN_BLOCK              13
+#define ECC_ENABLE_SELECT               14
+#define WRITE_ENABLE_2_READ_ENABLE      15
+#define ADDRESS_2_DATA                  16
+#define READ_ENABLE_2_WRITE_ENABLE      17
+#define TWO_ROW_ADDRESS_CYCLES          18
+#define MULTIPLANE_ADDRESS_RESTRICT     19
+#define ACC_CLOCKS                      20
+#define READ_WRITE_ENABLE_LOW_COUNT     21
+#define READ_WRITE_ENABLE_HIGH_COUNT    22
+
+/*nand É豸ÃèÊö½á¹¹Ìå*/
+struct nand_flash_device_para
+{
+	uint8_t manuf_id;             /* ³§¼ÒID */
+	uint8_t device_id;            /* É豸ID */
+	uint8_t res_id;               /* Æ÷¼þID */
+	uint8_t bus_num;              /* 0:8λ  1:16λ */
+	uint16_t  ecc_strength;         /*ECC ¾À´íÄÜÁ¦*/
+	uint16_t  page_size;            /* ÿҳmainÇøÓò´óС */
+	uint16_t  page_size_shift;      
+	uint16_t  oob_size;             /* ÿҳspareÇøÓò´óС */
+	uint16_t  block_size_shift;
+	uint16_t  block_num;            /* ¿éÊý */
+	uint32_t  block_size;           /* ÿ¿éµÄ´óС */
+};
+
+#endif /* _DENALI_H_*/
+
diff --git a/boot/common/src/loader/include/asm/arch-m0/gpio.h b/boot/common/src/loader/include/asm/arch-m0/gpio.h
new file mode 100644
index 0000000..82db90f
--- /dev/null
+++ b/boot/common/src/loader/include/asm/arch-m0/gpio.h
@@ -0,0 +1,53 @@
+/*******************************************************************************
+ * Copyright (C) 2016, ZXIC Corporation.
+ *
+ * File Name:    
+ * File Mark:    
+ * Description:  
+ * Others:        
+ * Version:       v1.0
+ * Author:        zhouqi
+ * Date:          2013-4-2
+ * History 1:      
+ *     Date: 
+ *     Version:
+ *     Author: 
+ *     Modification:  
+ * History 2: 
+  ********************************************************************************/
+#ifndef __GPIO_7520_H__
+#define __GPIO_7520_H__
+
+
+/*
+*******************************************************************************
+ * GPIO MUX UART1
+ ******************************************************************************
+ */
+#if 0
+#define STANDBY_PAD                  0x0010E000
+#define STANDBY_PAD_UART1_RXD		(STANDBY_PAD + 0x5C)
+#define     UART1_RXD               (0x1 << 24)
+#define STANDBY_PAD_UART1_TXD		(STANDBY_PAD + 0x60)
+#define     UART1_TXD               (0x1 << 24)
+
+#define STANDBY_PAD_UART_MASK       (0x7 << 24)
+#endif
+
+/*PIN MUX*/
+#define ZX29_PIN_MUX        0x01303000
+#define GPIO_PINMUX_REG_BASE ZX29_PIN_MUX
+
+/*PAD*/
+#define ZX29_A1_PAD_CTRL0   0x0013C000
+#define PAD_CTRL_REG_BASE   ZX29_A1_PAD_CTRL0
+
+
+#define PD_FUNC_SEL_BASE        (GPIO_PINMUX_REG_BASE)
+#define AON_FUNC_SEL_BASE		(PAD_CTRL_REG_BASE)
+#define TOP_FUNC_SEL_BASE		(PAD_CTRL_REG_BASE)
+#define IO_CFG_BASE				(PAD_CTRL_REG_BASE+0x800)
+
+
+#endif /*__GPIO_7520_H__*/
+
diff --git a/boot/common/src/loader/include/asm/arch-m0/spifc.h b/boot/common/src/loader/include/asm/arch-m0/spifc.h
new file mode 100755
index 0000000..f507dbc
--- /dev/null
+++ b/boot/common/src/loader/include/asm/arch-m0/spifc.h
@@ -0,0 +1,251 @@
+/*********************************************************************
+ Copyright 2016 by  ZXIC Corporation.
+*
+* FileName::    spi_fc.h
+* File Mark:
+* Description:  
+* Others:
+* Version:  
+* Author:  
+* Date:   
+
+* History 1:
+*     Date: 2014.1.15
+*     Version:
+*     Author: zhouqi
+*     Modification:
+* History 2:
+**********************************************************************/
+
+#ifndef __SPI_FC_H__
+#define __SPI_FC_H__
+
+
+#define SYS_SPI_NAND_BASE           0x01407000
+
+    
+struct spi_t
+{
+    uint32_t     VER_REG;                        //0x00
+    uint32_t     SFC_START;                      //0x04
+    uint32_t     SFC_EN;                         //0x08
+	uint32_t	 SFC_CTRL0;						//0x0c 
+	uint32_t	 SFC_CTRL1;						//0x10
+	uint32_t	 SFC_CTRL2;						//0x14 
+	uint32_t	 SFC_BYTE_NUM;					//0x18
+	uint32_t	 SFC_ADDR;						//0x1c
+	uint32_t	 SFC_INS;						//0x20
+	uint32_t	 SFC_TIMING;					//0x24
+	uint32_t	 SFC_INT_EN;					//0x28
+    uint32_t     SFC_INT_RAW;                    //0x2c
+    uint32_t     SFC_INT_SW_CLR;                 //0x30
+    uint32_t     SFC_SW;                         //0x34
+    uint32_t     SFC_DATA;                       //0x38
+};
+
+/*spifc start 0x4*/
+#define     FC_START      (1<<0)
+#define     FC_BUSY       (1<<0)
+
+/*spifc enable 0x8*/
+#define     FC_EN_BACK          (1<<1)
+#define     FC_EN               (1<<0)
+
+/*spifc main ctr0 0xc*/
+#define     FC_SCLK_PAUSE_CLR_ALLOW     (1<<17)
+#define     FC_SCLK_PAUSE_EN            (1<<16)
+#define     FC_TXFIFO_CLR               (1<<15)
+#define     FC_RXFIFO_CLR               (1<<14)
+#define     FC_TXFIFO_THRES             (1<<10)
+#define     FC_RXFIFO_THRES             (1<<6)
+#define     FC_TX_DMA_EN                (1<<5)
+#define     FC_RX_DMA_EN                (1<<4)
+#define     FC_WDOG_EN                  (1<<3)
+#define     FC_SPI_MODE                 (1<<1)
+#define     FC_WR_PROTECT               (1<<0)
+
+/*spifc ctrl1 0x10  in the condition : SFC_EN = 1 SFC_BUSY = 0*/
+#define     FC_ADDR_TX_EN           (4)
+#define     FC_DUMMY_TX_EN          (2)
+#define     FC_READ_DAT_EN          (1)
+#define     FC_WRITE_DAT_EN         (0)
+
+/*spifc ctrl2 0x14*/
+#define     FC_DUMMY_BYTE_NUM           (12)  /* [12:15} */
+#define     FC_DUMMY_BIT_NUM            (8)   /* [8:10] */
+#define     FC_ADDR_BYTE_NUM            (5)   /* [5:6] */
+#define         FC_ADDR_BYTE_NUM_8             (0) 
+#define         FC_ADDR_BYTE_NUM_16            (1) 
+#define         FC_ADDR_BYTE_NUM_24            (2)  
+#define         FC_ADDR_BYTE_NUM_32            (3)   
+#define     FC_ADDR_MULTI_LINE_EN       (1<<4)
+#define     FC_DAT_MULTI_LINE_EN        (1<<2)
+#define     FC_TRANS_MOD                (1<<0)
+
+/*spifc timing 0x24*/
+#define     FC_READ_DELAY           (1<<16)   /* [17:16} */
+#define     FC_T_CS_SETUP           (1<<11)   /* [11:13} */
+#define     FC_T_CS_HOLD            (1<<6)    /* [8:6} */
+#define     FC_T_CS_DESEL           (1<<0)    /* [0:3} */
+
+
+/*spifc int enable 0x28*/
+#define     FC_INT_EN_TX_BYD_THES           (1<<7)
+#define     FC_INT_EN_RX_BYD_THES           (1<<6)
+#define     FC_INT_EN_TX_UNDERRUN           (1<<5)
+#define     FC_INT_EN_RX_OVERRUN            (1<<4)
+#define     FC_INT_EN_WDOG_OVERRUN          (1<<2)
+#define     FC_INT_EN_FMT_ERR               (1<<1)
+#define     FC_INT_EN_CMD_END               (1<<0)
+
+/*spifc raw interrupt 0x2c*/
+#define     FC_INT_RAW_TX_BYD_THES           (1<<7)
+#define     FC_INT_RAW_RX_BYD_THES           (1<<6)
+#define     FC_INT_RAW_TX_UNDERRUN           (1<<5)
+#define     FC_INT_RAW_RX_OVERRUN            (1<<4)
+#define     FC_INT_RAW_WDOG_OVERRUN          (1<<2)
+#define     FC_INT_RAW_FMT_ERR               (1<<1)
+#define     FC_INT_RAW_CMD_END               (1<<0)
+#define     FC_INT_RAW_MASK              	 (FC_INT_RAW_TX_UNDERRUN|	\
+                                              FC_INT_RAW_RX_OVERRUN|	\
+                                              FC_INT_RAW_WDOG_OVERRUN|	\
+                                              FC_INT_RAW_FMT_ERR|		\
+                                              FC_INT_RAW_CMD_END)
+
+/*spifc int startus and clr 0x30*/
+#define     FC_INT_CLR_TX_BYD_THES           (1<<7)
+#define     FC_INT_CLR_RX_BYD_THES           (1<<6)
+#define     FC_INT_CLR_TX_UNDERRUN           (1<<5)
+#define     FC_INT_CLR_RX_OVERRUN            (1<<4)
+#define     FC_INT_CLR_WDOG_OVERRUN          (1<<2)
+#define     FC_INT_CLR_FMT_ERR               (1<<1)
+#define     FC_INT_CLR_CMD_END               (1<<0)
+
+/*spifc sw 0x34*/
+#define     FC_TX_FIFO_CNT              (16)         /* [16:20} */
+#define         FC_TX_FIFO_CNT_MASK         (0x1F)      /* [8:12} */
+#define     FC_RX_FIFO_CNT              (8)             /* [8:12} */
+#define         FC_RX_FIFO_CNT_MASK         (0x1F)      /* [8:12} */
+#define     FC_TX_BYD_THRES             (1<<5)  
+#define     FC_RX_BYD_THRES             (1<<4)  
+#define     FC_SCLK_PAUSE_FLAG          (1<<3)  
+#define     FC_WAIT_FLAG                (1<<2) 
+#define     FC_FORMAT_ERR               (1<<1)  
+
+
+#define         FC_DMA_NONE           0
+#define         FC_DMA_TX             1
+#define         FC_DMA_RX             2
+
+
+#define ADDR_TX_EN      1   /* µØÖ·Âë·¢ËÍʹÄÜ */
+#define ADDR_TX_DIS     0
+#define DATA_TX_EN      1
+#define DATA_TX_DIS     0
+#define DATA_RX_EN      1
+#define DATA_RX_DIS     0
+#define DUMY_TX_EN      1
+#define DUMY_TX_DIS     0
+
+#define ADDR_WIDTH_8    0
+#define ADDR_WIDTH_16   1
+#define ADDR_WIDTH_24   2
+#define ADDR_WIDTH_32   3
+
+struct spiflash_cmd_t
+{
+    uint8_t cmd;			/* Ö¸ÁîÂë */
+    uint8_t addr_tx_en;     /* µØÖ·Âë·¢ËÍʹÄÜ */
+    uint8_t addr_width;     /* µØÖ·Âë¿í¶È */
+    uint8_t data_tx_en;     /* ·¢ËÍÊý¾ÝʹÄÜ---д */
+    uint8_t data_rx_en;     /* ½ÓÊÕÊý¾ÝʹÄÜ---¶Á */
+    uint8_t dumy_tx_en;     /* ¿ÕÏеȴýÖÜÆÚʹÄÜ */
+    uint8_t dumy_bytes;     /* ¿ÕÏеȴýÖÜÆÚ x8 */
+    uint8_t dumy_bits;      /* ¿ÕÏеȴýÖÜÆÚ x1 */
+};
+
+
+/* SPI NAND CMD */
+#define CMD_WRITE_ENABLE            0x06
+#define CMD_WRITE_DISABLE           0x04
+#define CMD_GET_FEATURE		        0x0F
+#define CMD_SET_FEATURE		        0x1F
+
+#define CMD_READ_PAGE_TO_CACHE	     0x13
+#define CMD_READ_FROM_CACHE          0x03
+//#define CMD_READ_FROM_CACHE_X2       0x3B
+#define CMD_READ_FROM_CACHE_X4       0x6B
+#define CMD_READ_FROM_CACHE_QIO      0xEB
+
+#define CMD_READ_ID		            0x9F
+#define     ID_ADDR0		            0x00
+#define     ID_ADDR1		            0x01
+
+#define CMD_PROGRAM_LOAD		    0x02
+#define CMD_PROGRAM_LOAD_X4		    0x32
+
+#define CMD_PROGRAM_EXECUTE		    0x10
+//#define CMD_PROGRAM_LOAD_RANDOM      0x84
+//#define CMD_PROGRAM_LOAD_RANDOM_X4   0xC4
+//#define CMD_PROGRAM_LOAD_RANDOM_QIO  0x72
+
+#define CMD_BLOCK_ERASE             0xD8
+
+#define CMD_RESET                   0xFF
+
+//fpga
+#define CMD_READ_BYTE					0x03
+#define CMD_READ_TO_CACHE				0x13
+#define CMD_GET_FEATURE				0x0F
+#define CMD_END							0x00//unused cmd
+#define OIP_BIT		(1<<0)
+
+
+#define SINGLE_MODE 0
+//#define DUAL_MODE   1
+#define RDX4_MODE    2
+#define RDQIO_MODE   3
+#define PLX4_MODE    4
+
+/*read and write mode configuration*/
+//#define RD_MODE  RDX4_MODE
+#define RD_MODE  RDQIO_MODE
+//#define RD_MODE  SINGLE_MODE
+#define WR_MODE  PLX4_MODE
+
+/* SPI NAND REGISTER */
+#define REG_PROTECTION              0xA0
+#define REG_FEATURE                 0xB0
+#define ECC_EN                      (0x1<<4)
+#define QE                          0x0
+#define REG_STATUS                  0xC0
+#define ECC_ERR_BIT                 (0x4)        /* ECC ERR */
+#define ECC_ERR_MASK                (0x3<<4)     /* ECC ERR */
+#define P_FAIL                      (0x1<<3)     /* program fail*/
+#define E_FAIL                      (0x1<<2)     /* erase fail */
+#define WEL                         (0x1<<1)     /* Write Enable Latch */
+#define OIP                         (0x1<<0)     /* Operation In Progress */
+
+#define WRAP_SIZE_MAIN_OOB         (0x0<<12)      /* 2048 +64 = 2112 */
+#define WRAP_SIZE_MAIN             (0x4<<12)      /* 2048 */
+#define WRAP_SIZE_OOB			   (0x8<<12)      /* 64 */
+#define WRAP_SIZE_MINI			   (0xC<<12)      /* 16 */
+
+
+/*spi flash É豸ÃèÊö½á¹¹Ìå*/
+struct spi_flash_device_para
+{
+	uint8_t		manuf_id;             /* ³§¼ÒID */
+	uint8_t 		device_id;            /* É豸ID */
+	uint8_t 		res_id;               /* Æ÷¼þID */
+	uint16_t  	page_size;            /* ÿҳmainÇøÓò´óС */
+	uint16_t  	page_size_shift;      
+	uint16_t  	oob_size;             /* ÿҳspareÇøÓò´óС */
+	uint16_t  	block_size_shift;
+	uint16_t  	block_num;            /* ¿éÊý */
+	uint32_t  	block_size;           /* ÿ¿éµÄ´óС */
+	uint32_t		planes;
+};
+
+#endif	/* __SPI_FC_H__ */
+
diff --git a/boot/common/src/loader/include/asm/arch-m0/top_clock.h b/boot/common/src/loader/include/asm/arch-m0/top_clock.h
new file mode 100644
index 0000000..2325e31
--- /dev/null
+++ b/boot/common/src/loader/include/asm/arch-m0/top_clock.h
@@ -0,0 +1,88 @@
+/*******************************************************************************
+ * Copyright (C) 2016, ZXIC Corporation.
+ *
+ * File Name:    
+ * File Mark:    
+ * Description:  
+ * Others:        
+ * Version:       v1.0
+ * Author:        zhouqi
+ * Date:          2013-4-2
+ * History 1:      
+ *     Date: 2013-6-25
+ *     Version:v1.1
+ *     Author: cjg
+ *     Modification:  
+ * History 2: 
+  ********************************************************************************/
+#ifndef __TOP_CLOCK_H__
+#define __TOP_CLOCK_H__
+
+//----------- TOP_CRM ------------------------------------------------
+#define TOP_CRM_BASE       0x013B000
+
+#define WIFI_SSBUFFER               (TOP_CRM_BASE+0x008)
+#define WIFI_SSBUFFER_EN             (0x1 << 0)     /* Def: 0 */
+
+#define WIFI_SSBUFFER               (TOP_CRM_BASE+0x008)
+#define WIFI_SSBUFFER_EN             (0x1 << 0)     /* Def: 0 */
+
+#define BOOTSEL_INFO		(TOP_CRM_BASE+0x4)
+
+
+//----------- LSP_CRPM ------------------------------------------------
+#define LSP_CRPM_BASE       0x01400000
+
+#define CRPM_CLKSET             (LSP_CRPM_BASE + 0x0)
+#define     COM_CLK_SEL             (0x1 << 0)
+
+#define CRPM_CLKDIV1            (LSP_CRPM_BASE + 0x24)
+#define     CRPM_CLKDIV1_MASK       (0xF << 16)
+#define     TIMER0_DIV_12           (0xB << 16)
+
+//----------- SOCCRM ---------------------------------------------------
+#define STANDBY_CRM_BASE         0x01306000
+
+#define MATRIX_AXI_SEL   (STANDBY_CRM_BASE + 0x00)
+#define PS_CORE_SEL      (STANDBY_CRM_BASE + 0x20)
+#define PHY_CORE_SEL     (STANDBY_CRM_BASE + 0x30)
+#define AP_CORE_SEL     (STANDBY_CRM_BASE + 0x40)
+
+//#define NAND_CLKDIV      (STANDBY_CRM_BASE + 0x40)
+#define MATRIX_MODEM_RESET      (STANDBY_CRM_BASE + 0x50)
+
+#define     NAND_WCLK_SEL           (0x1)//26M
+
+
+//----------- PCU ----------------------------------------------
+#define SYSTEM_CONFIG_REG    0x0010d600
+#define     PULL_OUTPUT_SEL          (0x1 << 30)
+
+//----------- TOP_SYSCLK ----------------------------------------------
+#define TOP_SYSCLK_BASE      0x0013b000
+
+#define MPLL_CFG0_REG	( TOP_SYSCLK_BASE + 0x008 )
+#define UPLL_CFG0_REG	( TOP_SYSCLK_BASE + 0x010 )
+#define GPLL_CFG0_REG	( TOP_SYSCLK_BASE + 0x110 )
+//#define APLL_CFG0_REG	( TOP_SYSCLK_BASE + 0x018 )
+//#define DPLL_CFG0_REG	( TOP_SYSCLK_BASE + 0x028 )
+//#define DPLL_CFG1_REG	( TOP_SYSCLK_BASE + 0x02c )
+
+#define M0_CORE_SEL      (TOP_SYSCLK_BASE + 0x038)
+#define HS_AHB_CLK	      (TOP_SYSCLK_BASE + 0x03c)
+
+#define PLL_LOCK_CNT0	( TOP_SYSCLK_BASE + 0x030 )
+#define PLL_LOCK_CNT1	( TOP_SYSCLK_BASE + 0x034 )
+#define RMCORE_CLK_CFG_REG	( TOP_SYSCLK_BASE + 0x050 )
+#define RM_MOD_CLKSEL	( TOP_SYSCLK_BASE + 0x054 )
+
+/*pll cfg0 reg map*/
+
+/*pll cfg1 reg map*/
+#define     PLL_CFG1_DACAP				(0x1 << 27)
+#define     PLL_CFG1_FOUT4PHASEPD		(0x1 << 26)
+#define     PLL_CFG1_FOUTPOSTDIVPD		(0x1 << 25)
+#define     PLL_CFG1_FOUTVCOPD			(0x1 << 24)
+#define     PLL_CFG1_FRAC				(0x1 << 0)
+
+#endif /*__TOP_CLOCK_H__*/
diff --git a/boot/common/src/loader/include/asm/arch-m0/uart.h b/boot/common/src/loader/include/asm/arch-m0/uart.h
new file mode 100644
index 0000000..8084fed
--- /dev/null
+++ b/boot/common/src/loader/include/asm/arch-m0/uart.h
@@ -0,0 +1,84 @@
+/*******************************************************************************
+ * Copyright (C) 2016, ZXIC Corporation.
+ *
+ * File Name:    
+ * File Mark:    
+ * Description:  
+ * Others:        
+ * Version:       v1.0
+ * Author:        zhouqi
+ * Date:          2013-4-2
+ * History 1:      
+ *     Date: 
+ *     Version:
+ *     Author: 
+ *     Modification:  
+ * History 2: 
+  ********************************************************************************/
+#ifndef __UART_7520_H__
+#define __UART_7520_H__
+#include "common.h"
+
+
+/********************************************************************************
+ * UART
+ *******************************************************************************/
+#define UART0_BASE		0X131000
+#define UART1_BASE		0x1408000
+#define UART2_BASE      0x140d000
+#define PAD_TOP_FUNC_BASE   0x13c000
+#define PAD_PD_FUNC_BASE    0x1303000
+
+#define UART_BASE		UART1_BASE   
+
+#define UART_VS             (UART_BASE + 0x00)
+#define UART_DR             (UART_BASE + 0x04)
+#define UART_TSC            (UART_BASE + 0x08)
+#define UART_RSR            (UART_BASE + 0x10)
+#define UART_FR             (UART_BASE + 0x14)
+#define     UART_TXFF           (0x1 << 5)
+#define     UART_RXFE           (0x1 << 4)
+#define UART_FR_TXBUSY			(1<<8)
+
+#define UART_ILPR           (UART_BASE + 0x20)
+#define UART_IBRD           (UART_BASE + 0x24)
+#define UART_FBRD           (UART_BASE + 0x28)
+#define UART_LCR_H          (UART_BASE + 0x30)
+#define     UART_SPS			(0x1 << 7)		// Stick Parity select
+#define     UART_WLEN_8  		(0x3 << 5)		// Word length: 8 bits     
+#define     UART_FEN			(0x1 << 4)		// Enable FIFOs     
+#define     UART_STP2 		    (0x1 << 3)		// Number of stop bits,"1": 2stop bits transmitted    
+#define     UART_EPS   			(0x1 << 2)		// Even parity select
+#define     UART_PEN	        (0x1 << 1)		// Parity enable
+#define     UART_BREAK 			(0x1 << 0)		// Send break
+#define UART_CR             (UART_BASE + 0x34)
+#define     UART_CTSE			(0x1 << 15)		// CTS hardware flow control enable 
+#define     UART_RTSE			(0x1 << 14)		// RTS hardware flow control enable
+#define     UART_OUT2			(0x1 << 13)		// out2                       
+#define     UART_OUT1  	 	    (0x1 << 12) 	// out1 
+#define     UART_RTS    		(0x1 << 11) 	// request to send
+#define     UART_DTR    		(0x1 << 10) 	// data transmit ready 
+#define     UART_RXE			(0x1 << 9)		// Receive Enable (RXE)"1"
+#define     UART_TXE			(0x1 << 8)		// "1": Transmit Enable (TXE) 
+#define     UART_LBE    		(0x1 << 7)		// "1": Loop Back Enable 
+#define     UART_SIRLP			(0x1 << 2)		// "1": IrDA SIR Low Power Mode 
+#define     UART_SIR_EN		    (0x1 << 1)		// "0": SIR disable; "1": SIR enable 
+#define     UART_EN				(0x1 << 0)		// "0": uart disable; "1": uart enable 
+#define UART_IFLS           (UART_BASE + 0x38)
+#define UART_IMSC           (UART_BASE + 0x40)
+#define UART_RIS            (UART_BASE + 0x44)
+#define UART_MIS            (UART_BASE + 0x48)
+#define UART_ICR            (UART_BASE + 0x4C)
+#define UART_DMACR          (UART_BASE + 0x50)
+
+#define UART_INT_MASK       (0xFFFFFFFF)
+
+
+extern void uart_init(void);
+extern char uart_getc(void);
+extern void uart_putc(const char c);
+extern void uart_puts(const char *s);
+
+
+#endif /*__UART_7520_H__*/
+